diff options
| author | Wim <wim@42.be> | 2018-08-06 21:47:05 +0200 |
|---|---|---|
| committer | Wim <wim@42.be> | 2018-08-06 21:47:05 +0200 |
| commit | 51062863a5c34d81e296cf15c61140911037cf3b (patch) | |
| tree | 9b5e044672486326c7a0ca8fb26430f37bf4d83c /vendor/golang.org/x/net | |
| parent | 4fb4b7aa6c02a54db8ad8dd98e4d321396926c0d (diff) | |
| download | matterbridge-msglm-51062863a5c34d81e296cf15c61140911037cf3b.tar.gz matterbridge-msglm-51062863a5c34d81e296cf15c61140911037cf3b.tar.bz2 matterbridge-msglm-51062863a5c34d81e296cf15c61140911037cf3b.zip | |
Use mod vendor for vendored directory (backwards compatible)
Diffstat (limited to 'vendor/golang.org/x/net')
32 files changed, 28 insertions, 11078 deletions
diff --git a/vendor/golang.org/x/net/AUTHORS b/vendor/golang.org/x/net/AUTHORS new file mode 100644 index 00000000..15167cd7 --- /dev/null +++ b/vendor/golang.org/x/net/AUTHORS @@ -0,0 +1,3 @@ +# This source code refers to The Go Authors for copyright purposes. +# The master list of authors is in the main Go distribution, +# visible at http://tip.golang.org/AUTHORS. diff --git a/vendor/golang.org/x/net/CONTRIBUTORS b/vendor/golang.org/x/net/CONTRIBUTORS new file mode 100644 index 00000000..1c4577e9 --- /dev/null +++ b/vendor/golang.org/x/net/CONTRIBUTORS @@ -0,0 +1,3 @@ +# This source code was written by the Go contributors. +# The master list of contributors is in the main Go distribution, +# visible at http://tip.golang.org/CONTRIBUTORS. diff --git a/vendor/golang.org/x/net/context/LICENSE b/vendor/golang.org/x/net/LICENSE index 6a66aea5..6a66aea5 100644 --- a/vendor/golang.org/x/net/context/LICENSE +++ b/vendor/golang.org/x/net/LICENSE diff --git a/vendor/golang.org/x/net/PATENTS b/vendor/golang.org/x/net/PATENTS new file mode 100644 index 00000000..73309904 --- /dev/null +++ b/vendor/golang.org/x/net/PATENTS @@ -0,0 +1,22 @@ +Additional IP Rights Grant (Patents) + +"This implementation" means the copyrightable works distributed by +Google as part of the Go project. + +Google hereby grants to You a perpetual, worldwide, non-exclusive, +no-charge, royalty-free, irrevocable (except as stated in this section) +patent license to make, have made, use, offer to sell, sell, import, +transfer and otherwise run, modify and propagate the contents of this +implementation of Go, where such license applies only to those patent +claims, both currently owned or controlled by Google and acquired in +the future, licensable by Google that are necessarily infringed by this +implementation of Go. This grant does not include claims that would be +infringed only as a consequence of further modification of this +implementation. If you or your agent or exclusive licensee institute or +order or agree to the institution of patent litigation against any +entity (including a cross-claim or counterclaim in a lawsuit) alleging +that this implementation of Go or any code incorporated within this +implementation of Go constitutes direct or contributory patent +infringement, or inducement of patent infringement, then any patent +rights granted to you under this License for this implementation of Go +shall terminate as of the date such litigation is filed. diff --git a/vendor/golang.org/x/net/context/context.go b/vendor/golang.org/x/net/context/context.go deleted file mode 100644 index f143ed6a..00000000 --- a/vendor/golang.org/x/net/context/context.go +++ /dev/null @@ -1,156 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package context defines the Context type, which carries deadlines, -// cancelation signals, and other request-scoped values across API boundaries -// and between processes. -// -// Incoming requests to a server should create a Context, and outgoing calls to -// servers should accept a Context. The chain of function calls between must -// propagate the Context, optionally replacing it with a modified copy created -// using WithDeadline, WithTimeout, WithCancel, or WithValue. -// -// Programs that use Contexts should follow these rules to keep interfaces -// consistent across packages and enable static analysis tools to check context -// propagation: -// -// Do not store Contexts inside a struct type; instead, pass a Context -// explicitly to each function that needs it. The Context should be the first -// parameter, typically named ctx: -// -// func DoSomething(ctx context.Context, arg Arg) error { -// // ... use ctx ... -// } -// -// Do not pass a nil Context, even if a function permits it. Pass context.TODO -// if you are unsure about which Context to use. -// -// Use context Values only for request-scoped data that transits processes and -// APIs, not for passing optional parameters to functions. -// -// The same Context may be passed to functions running in different goroutines; -// Contexts are safe for simultaneous use by multiple goroutines. -// -// See http://blog.golang.org/context for example code for a server that uses -// Contexts. -package context // import "golang.org/x/net/context" - -import "time" - -// A Context carries a deadline, a cancelation signal, and other values across -// API boundaries. -// -// Context's methods may be called by multiple goroutines simultaneously. -type Context interface { - // Deadline returns the time when work done on behalf of this context - // should be canceled. Deadline returns ok==false when no deadline is - // set. Successive calls to Deadline return the same results. - Deadline() (deadline time.Time, ok bool) - - // Done returns a channel that's closed when work done on behalf of this - // context should be canceled. Done may return nil if this context can - // never be canceled. Successive calls to Done return the same value. - // - // WithCancel arranges for Done to be closed when cancel is called; - // WithDeadline arranges for Done to be closed when the deadline - // expires; WithTimeout arranges for Done to be closed when the timeout - // elapses. - // - // Done is provided for use in select statements: - // - // // Stream generates values with DoSomething and sends them to out - // // until DoSomething returns an error or ctx.Done is closed. - // func Stream(ctx context.Context, out chan<- Value) error { - // for { - // v, err := DoSomething(ctx) - // if err != nil { - // return err - // } - // select { - // case <-ctx.Done(): - // return ctx.Err() - // case out <- v: - // } - // } - // } - // - // See http://blog.golang.org/pipelines for more examples of how to use - // a Done channel for cancelation. - Done() <-chan struct{} - - // Err returns a non-nil error value after Done is closed. Err returns - // Canceled if the context was canceled or DeadlineExceeded if the - // context's deadline passed. No other values for Err are defined. - // After Done is closed, successive calls to Err return the same value. - Err() error - - // Value returns the value associated with this context for key, or nil - // if no value is associated with key. Successive calls to Value with - // the same key returns the same result. - // - // Use context values only for request-scoped data that transits - // processes and API boundaries, not for passing optional parameters to - // functions. - // - // A key identifies a specific value in a Context. Functions that wish - // to store values in Context typically allocate a key in a global - // variable then use that key as the argument to context.WithValue and - // Context.Value. A key can be any type that supports equality; - // packages should define keys as an unexported type to avoid - // collisions. - // - // Packages that define a Context key should provide type-safe accessors - // for the values stores using that key: - // - // // Package user defines a User type that's stored in Contexts. - // package user - // - // import "golang.org/x/net/context" - // - // // User is the type of value stored in the Contexts. - // type User struct {...} - // - // // key is an unexported type for keys defined in this package. - // // This prevents collisions with keys defined in other packages. - // type key int - // - // // userKey is the key for user.User values in Contexts. It is - // // unexported; clients use user.NewContext and user.FromContext - // // instead of using this key directly. - // var userKey key = 0 - // - // // NewContext returns a new Context that carries value u. - // func NewContext(ctx context.Context, u *User) context.Context { - // return context.WithValue(ctx, userKey, u) - // } - // - // // FromContext returns the User value stored in ctx, if any. - // func FromContext(ctx context.Context) (*User, bool) { - // u, ok := ctx.Value(userKey).(*User) - // return u, ok - // } - Value(key interface{}) interface{} -} - -// Background returns a non-nil, empty Context. It is never canceled, has no -// values, and has no deadline. It is typically used by the main function, -// initialization, and tests, and as the top-level Context for incoming -// requests. -func Background() Context { - return background -} - -// TODO returns a non-nil, empty Context. Code should use context.TODO when -// it's unclear which Context to use or it is not yet available (because the -// surrounding function has not yet been extended to accept a Context -// parameter). TODO is recognized by static analysis tools that determine -// whether Contexts are propagated correctly in a program. -func TODO() Context { - return todo -} - -// A CancelFunc tells an operation to abandon its work. -// A CancelFunc does not wait for the work to stop. -// After the first call, subsequent calls to a CancelFunc do nothing. -type CancelFunc func() diff --git a/vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go b/vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go deleted file mode 100644 index 606cf1f9..00000000 --- a/vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build go1.7 - -// Package ctxhttp provides helper functions for performing context-aware HTTP requests. -package ctxhttp // import "golang.org/x/net/context/ctxhttp" - -import ( - "io" - "net/http" - "net/url" - "strings" - - "golang.org/x/net/context" -) - -// Do sends an HTTP request with the provided http.Client and returns -// an HTTP response. -// -// If the client is nil, http.DefaultClient is used. -// -// The provided ctx must be non-nil. If it is canceled or times out, -// ctx.Err() will be returned. -func Do(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) { - if client == nil { - client = http.DefaultClient - } - resp, err := client.Do(req.WithContext(ctx)) - // If we got an error, and the context has been canceled, - // the context's error is probably more useful. - if err != nil { - select { - case <-ctx.Done(): - err = ctx.Err() - default: - } - } - return resp, err -} - -// Get issues a GET request via the Do function. -func Get(ctx context.Context, client *http.Client, url string) (*http.Response, error) { - req, err := http.NewRequest("GET", url, nil) - if err != nil { - return nil, err - } - return Do(ctx, client, req) -} - -// Head issues a HEAD request via the Do function. -func Head(ctx context.Context, client *http.Client, url string) (*http.Response, error) { - req, err := http.NewRequest("HEAD", url, nil) - if err != nil { - return nil, err - } - return Do(ctx, client, req) -} - -// Post issues a POST request via the Do function. -func Post(ctx context.Context, client *http.Client, url string, bodyType string, body io.Reader) (*http.Response, error) { - req, err := http.NewRequest("POST", url, body) - if err != nil { - return nil, err - } - req.Header.Set("Content-Type", bodyType) - return Do(ctx, client, req) -} - -// PostForm issues a POST request via the Do function. -func PostForm(ctx context.Context, client *http.Client, url string, data url.Values) (*http.Response, error) { - return Post(ctx, client, url, "application/x-www-form-urlencoded", strings.NewReader(data.Encode())) -} diff --git a/vendor/golang.org/x/net/context/ctxhttp/ctxhttp_pre17.go b/vendor/golang.org/x/net/context/ctxhttp/ctxhttp_pre17.go deleted file mode 100644 index 926870cc..00000000 --- a/vendor/golang.org/x/net/context/ctxhttp/ctxhttp_pre17.go +++ /dev/null @@ -1,147 +0,0 @@ -// Copyright 2015 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build !go1.7 - -package ctxhttp // import "golang.org/x/net/context/ctxhttp" - -import ( - "io" - "net/http" - "net/url" - "strings" - - "golang.org/x/net/context" -) - -func nop() {} - -var ( - testHookContextDoneBeforeHeaders = nop - testHookDoReturned = nop - testHookDidBodyClose = nop -) - -// Do sends an HTTP request with the provided http.Client and returns an HTTP response. -// If the client is nil, http.DefaultClient is used. -// If the context is canceled or times out, ctx.Err() will be returned. -func Do(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) { - if client == nil { - client = http.DefaultClient - } - - // TODO(djd): Respect any existing value of req.Cancel. - cancel := make(chan struct{}) - req.Cancel = cancel - - type responseAndError struct { - resp *http.Response - err error - } - result := make(chan responseAndError, 1) - - // Make local copies of test hooks closed over by goroutines below. - // Prevents data races in tests. - testHookDoReturned := testHookDoReturned - testHookDidBodyClose := testHookDidBodyClose - - go func() { - resp, err := client.Do(req) - testHookDoReturned() - result <- responseAndError{resp, err} - }() - - var resp *http.Response - - select { - case <-ctx.Done(): - testHookContextDoneBeforeHeaders() - close(cancel) - // Clean up after the goroutine calling client.Do: - go func() { - if r := <-result; r.resp != nil { - testHookDidBodyClose() - r.resp.Body.Close() - } - }() - return nil, ctx.Err() - case r := <-result: - var err error - resp, err = r.resp, r.err - if err != nil { - return resp, err - } - } - - c := make(chan struct{}) - go func() { - select { - case <-ctx.Done(): - close(cancel) - case <-c: - // The response's Body is closed. - } - }() - resp.Body = ¬ifyingReader{resp.Body, c} - - return resp, nil -} - -// Get issues a GET request via the Do function. -func Get(ctx context.Context, client *http.Client, url string) (*http.Response, error) { - req, err := http.NewRequest("GET", url, nil) - if err != nil { - return nil, err - } - return Do(ctx, client, req) -} - -// Head issues a HEAD request via the Do function. -func Head(ctx context.Context, client *http.Client, url string) (*http.Response, error) { - req, err := http.NewRequest("HEAD", url, nil) - if err != nil { - return nil, err - } - return Do(ctx, client, req) -} - -// Post issues a POST request via the Do function. -func Post(ctx context.Context, client *http.Client, url string, bodyType string, body io.Reader) (*http.Response, error) { - req, err := http.NewRequest("POST", url, body) - if err != nil { - return nil, err - } - req.Header.Set("Content-Type", bodyType) - return Do(ctx, client, req) -} - -// PostForm issues a POST request via the Do function. -func PostForm(ctx context.Context, client *http.Client, url string, data url.Values) (*http.Response, error) { - return Post(ctx, client, url, "application/x-www-form-urlencoded", strings.NewReader(data.Encode())) -} - -// notifyingReader is an io.ReadCloser that closes the notify channel after -// Close is called or a Read fails on the underlying ReadCloser. -type notifyingReader struct { - io.ReadCloser - notify chan<- struct{} -} - -func (r *notifyingReader) Read(p []byte) (int, error) { - n, err := r.ReadCloser.Read(p) - if err != nil && r.notify != nil { - close(r.notify) - r.notify = nil - } - return n, err -} - -func (r *notifyingReader) Close() error { - err := r.ReadCloser.Close() - if r.notify != nil { - close(r.notify) - r.notify = nil - } - return err -} diff --git a/vendor/golang.org/x/net/context/go17.go b/vendor/golang.org/x/net/context/go17.go deleted file mode 100644 index d20f52b7..00000000 --- a/vendor/golang.org/x/net/context/go17.go +++ /dev/null @@ -1,72 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build go1.7 - -package context - -import ( - "context" // standard library's context, as of Go 1.7 - "time" -) - -var ( - todo = context.TODO() - background = context.Background() -) - -// Canceled is the error returned by Context.Err when the context is canceled. -var Canceled = context.Canceled - -// DeadlineExceeded is the error returned by Context.Err when the context's -// deadline passes. -var DeadlineExceeded = context.DeadlineExceeded - -// WithCancel returns a copy of parent with a new Done channel. The returned -// context's Done channel is closed when the returned cancel function is called -// or when the parent context's Done channel is closed, whichever happens first. -// -// Canceling this context releases resources associated with it, so code should -// call cancel as soon as the operations running in this Context complete. -func WithCancel(parent Context) (ctx Context, cancel CancelFunc) { - ctx, f := context.WithCancel(parent) - return ctx, CancelFunc(f) -} - -// WithDeadline returns a copy of the parent context with the deadline adjusted -// to be no later than d. If the parent's deadline is already earlier than d, -// WithDeadline(parent, d) is semantically equivalent to parent. The returned -// context's Done channel is closed when the deadline expires, when the returned -// cancel function is called, or when the parent context's Done channel is -// closed, whichever happens first. -// -// Canceling this context releases resources associated with it, so code should -// call cancel as soon as the operations running in this Context complete. -func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) { - ctx, f := context.WithDeadline(parent, deadline) - return ctx, CancelFunc(f) -} - -// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)). -// -// Canceling this context releases resources associated with it, so code should -// call cancel as soon as the operations running in this Context complete: -// -// func slowOperationWithTimeout(ctx context.Context) (Result, error) { -// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond) -// defer cancel() // releases resources if slowOperation completes before timeout elapses -// return slowOperation(ctx) -// } -func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) { - return WithDeadline(parent, time.Now().Add(timeout)) -} - -// WithValue returns a copy of parent in which the value associated with key is -// val. -// -// Use context Values only for request-scoped data that transits processes and -// APIs, not for passing optional parameters to functions. -func WithValue(parent Context, key interface{}, val interface{}) Context { - return context.WithValue(parent, key, val) -} diff --git a/vendor/golang.org/x/net/context/pre_go17.go b/vendor/golang.org/x/net/context/pre_go17.go deleted file mode 100644 index 0f35592d..00000000 --- a/vendor/golang.org/x/net/context/pre_go17.go +++ /dev/null @@ -1,300 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build !go1.7 - -package context - -import ( - "errors" - "fmt" - "sync" - "time" -) - -// An emptyCtx is never canceled, has no values, and has no deadline. It is not -// struct{}, since vars of this type must have distinct addresses. -type emptyCtx int - -func (*emptyCtx) Deadline() (deadline time.Time, ok bool) { - return -} - -func (*emptyCtx) Done() <-chan struct{} { - return nil -} - -func (*emptyCtx) Err() error { - return nil -} - -func (*emptyCtx) Value(key interface{}) interface{} { - return nil -} - -func (e *emptyCtx) String() string { - switch e { - case background: - return "context.Background" - case todo: - return "context.TODO" - } - return "unknown empty Context" -} - -var ( - background = new(emptyCtx) - todo = new(emptyCtx) -) - -// Canceled is the error returned by Context.Err when the context is canceled. -var Canceled = errors.New("context canceled") - -// DeadlineExceeded is the error returned by Context.Err when the context's -// deadline passes. -var DeadlineExceeded = errors.New("context deadline exceeded") - -// WithCancel returns a copy of parent with a new Done channel. The returned -// context's Done channel is closed when the returned cancel function is called -// or when the parent context's Done channel is closed, whichever happens first. -// -// Canceling this context releases resources associated with it, so code should -// call cancel as soon as the operations running in this Context complete. -func WithCancel(parent Context) (ctx Context, cancel CancelFunc) { - c := newCancelCtx(parent) - propagateCancel(parent, c) - return c, func() { c.cancel(true, Canceled) } -} - -// newCancelCtx returns an initialized cancelCtx. -func newCancelCtx(parent Context) *cancelCtx { - return &cancelCtx{ - Context: parent, - done: make(chan struct{}), - } -} - -// propagateCancel arranges for child to be canceled when parent is. -func propagateCancel(parent Context, child canceler) { - if parent.Done() == nil { - return // parent is never canceled - } - if p, ok := parentCancelCtx(parent); ok { - p.mu.Lock() - if p.err != nil { - // parent has already been canceled - child.cancel(false, p.err) - } else { - if p.children == nil { - p.children = make(map[canceler]bool) - } - p.children[child] = true - } - p.mu.Unlock() - } else { - go func() { - select { - case <-parent.Done(): - child.cancel(false, parent.Err()) - case <-child.Done(): - } - }() - } -} - -// parentCancelCtx follows a chain of parent references until it finds a -// *cancelCtx. This function understands how each of the concrete types in this -// package represents its parent. -func parentCancelCtx(parent Context) (*cancelCtx, bool) { - for { - switch c := parent.(type) { - case *cancelCtx: - return c, true - case *timerCtx: - return c.cancelCtx, true - case *valueCtx: - parent = c.Context - default: - return nil, false - } - } -} - -// removeChild removes a context from its parent. -func removeChild(parent Context, child canceler) { - p, ok := parentCancelCtx(parent) - if !ok { - return - } - p.mu.Lock() - if p.children != nil { - delete(p.children, child) - } - p.mu.Unlock() -} - -// A canceler is a context type that can be canceled directly. The -// implementations are *cancelCtx and *timerCtx. -type canceler interface { - cancel(removeFromParent bool, err error) - Done() <-chan struct{} -} - -// A cancelCtx can be canceled. When canceled, it also cancels any children -// that implement canceler. -type cancelCtx struct { - Context - - done chan struct{} // closed by the first cancel call. - - mu sync.Mutex - children map[canceler]bool // set to nil by the first cancel call - err error // set to non-nil by the first cancel call -} - -func (c *cancelCtx) Done() <-chan struct{} { - return c.done -} - -func (c *cancelCtx) Err() error { - c.mu.Lock() - defer c.mu.Unlock() - return c.err -} - -func (c *cancelCtx) String() string { - return fmt.Sprintf("%v.WithCancel", c.Context) -} - -// cancel closes c.done, cancels each of c's children, and, if -// removeFromParent is true, removes c from its parent's children. -func (c *cancelCtx) cancel(removeFromParent bool, err error) { - if err == nil { - panic("context: internal error: missing cancel error") - } - c.mu.Lock() - if c.err != nil { - c.mu.Unlock() - return // already canceled - } - c.err = err - close(c.done) - for child := range c.children { - // NOTE: acquiring the child's lock while holding parent's lock. - child.cancel(false, err) - } - c.children = nil - c.mu.Unlock() - - if removeFromParent { - removeChild(c.Context, c) - } -} - -// WithDeadline returns a copy of the parent context with the deadline adjusted -// to be no later than d. If the parent's deadline is already earlier than d, -// WithDeadline(parent, d) is semantically equivalent to parent. The returned -// context's Done channel is closed when the deadline expires, when the returned -// cancel function is called, or when the parent context's Done channel is -// closed, whichever happens first. -// -// Canceling this context releases resources associated with it, so code should -// call cancel as soon as the operations running in this Context complete. -func WithDeadline(parent Context, deadline time.Time) (Context, CancelFunc) { - if cur, ok := parent.Deadline(); ok && cur.Before(deadline) { - // The current deadline is already sooner than the new one. - return WithCancel(parent) - } - c := &timerCtx{ - cancelCtx: newCancelCtx(parent), - deadline: deadline, - } - propagateCancel(parent, c) - d := deadline.Sub(time.Now()) - if d <= 0 { - c.cancel(true, DeadlineExceeded) // deadline has already passed - return c, func() { c.cancel(true, Canceled) } - } - c.mu.Lock() - defer c.mu.Unlock() - if c.err == nil { - c.timer = time.AfterFunc(d, func() { - c.cancel(true, DeadlineExceeded) - }) - } - return c, func() { c.cancel(true, Canceled) } -} - -// A timerCtx carries a timer and a deadline. It embeds a cancelCtx to -// implement Done and Err. It implements cancel by stopping its timer then -// delegating to cancelCtx.cancel. -type timerCtx struct { - *cancelCtx - timer *time.Timer // Under cancelCtx.mu. - - deadline time.Time -} - -func (c *timerCtx) Deadline() (deadline time.Time, ok bool) { - return c.deadline, true -} - -func (c *timerCtx) String() string { - return fmt.Sprintf("%v.WithDeadline(%s [%s])", c.cancelCtx.Context, c.deadline, c.deadline.Sub(time.Now())) -} - -func (c *timerCtx) cancel(removeFromParent bool, err error) { - c.cancelCtx.cancel(false, err) - if removeFromParent { - // Remove this timerCtx from its parent cancelCtx's children. - removeChild(c.cancelCtx.Context, c) - } - c.mu.Lock() - if c.timer != nil { - c.timer.Stop() - c.timer = nil - } - c.mu.Unlock() -} - -// WithTimeout returns WithDeadline(parent, time.Now().Add(timeout)). -// -// Canceling this context releases resources associated with it, so code should -// call cancel as soon as the operations running in this Context complete: -// -// func slowOperationWithTimeout(ctx context.Context) (Result, error) { -// ctx, cancel := context.WithTimeout(ctx, 100*time.Millisecond) -// defer cancel() // releases resources if slowOperation completes before timeout elapses -// return slowOperation(ctx) -// } -func WithTimeout(parent Context, timeout time.Duration) (Context, CancelFunc) { - return WithDeadline(parent, time.Now().Add(timeout)) -} - -// WithValue returns a copy of parent in which the value associated with key is -// val. -// -// Use context Values only for request-scoped data that transits processes and -// APIs, not for passing optional parameters to functions. -func WithValue(parent Context, key interface{}, val interface{}) Context { - return &valueCtx{parent, key, val} -} - -// A valueCtx carries a key-value pair. It implements Value for that key and -// delegates all other calls to the embedded Context. -type valueCtx struct { - Context - key, val interface{} -} - -func (c *valueCtx) String() string { - return fmt.Sprintf("%v.WithValue(%#v, %#v)", c.Context, c.key, c.val) -} - -func (c *valueCtx) Value(key interface{}) interface{} { - if c.key == key { - return c.val - } - return c.Context.Value(key) -} diff --git a/vendor/golang.org/x/net/html/LICENSE b/vendor/golang.org/x/net/html/LICENSE deleted file mode 100644 index 6a66aea5..00000000 --- a/vendor/golang.org/x/net/html/LICENSE +++ /dev/null @@ -1,27 +0,0 @@ -Copyright (c) 2009 The Go Authors. All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - * Redistributions of source code must retain the above copyright -notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above -copyright notice, this list of conditions and the following disclaimer -in the documentation and/or other materials provided with the -distribution. - * Neither the name of Google Inc. nor the names of its -contributors may be used to endorse or promote products derived from -this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/golang.org/x/net/html/atom/atom.go b/vendor/golang.org/x/net/html/atom/atom.go deleted file mode 100644 index cd0a8ac1..00000000 --- a/vendor/golang.org/x/net/html/atom/atom.go +++ /dev/null @@ -1,78 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package atom provides integer codes (also known as atoms) for a fixed set of -// frequently occurring HTML strings: tag names and attribute keys such as "p" -// and "id". -// -// Sharing an atom's name between all elements with the same tag can result in -// fewer string allocations when tokenizing and parsing HTML. Integer -// comparisons are also generally faster than string comparisons. -// -// The value of an atom's particular code is not guaranteed to stay the same -// between versions of this package. Neither is any ordering guaranteed: -// whether atom.H1 < atom.H2 may also change. The codes are not guaranteed to -// be dense. The only guarantees are that e.g. looking up "div" will yield -// atom.Div, calling atom.Div.String will return "div", and atom.Div != 0. -package atom // import "golang.org/x/net/html/atom" - -// Atom is an integer code for a string. The zero value maps to "". -type Atom uint32 - -// String returns the atom's name. -func (a Atom) String() string { - start := uint32(a >> 8) - n := uint32(a & 0xff) - if start+n > uint32(len(atomText)) { - return "" - } - return atomText[start : start+n] -} - -func (a Atom) string() string { - return atomText[a>>8 : a>>8+a&0xff] -} - -// fnv computes the FNV hash with an arbitrary starting value h. -func fnv(h uint32, s []byte) uint32 { - for i := range s { - h ^= uint32(s[i]) - h *= 16777619 - } - return h -} - -func match(s string, t []byte) bool { - for i, c := range t { - if s[i] != c { - return false - } - } - return true -} - -// Lookup returns the atom whose name is s. It returns zero if there is no -// such atom. The lookup is case sensitive. -func Lookup(s []byte) Atom { - if len(s) == 0 || len(s) > maxAtomLen { - return 0 - } - h := fnv(hash0, s) - if a := table[h&uint32(len(table)-1)]; int(a&0xff) == len(s) && match(a.string(), s) { - return a - } - if a := table[(h>>16)&uint32(len(table)-1)]; int(a&0xff) == len(s) && match(a.string(), s) { - return a - } - return 0 -} - -// String returns a string whose contents are equal to s. In that sense, it is -// equivalent to string(s) but may be more efficient. -func String(s []byte) string { - if a := Lookup(s); a != 0 { - return a.String() - } - return string(s) -} diff --git a/vendor/golang.org/x/net/html/atom/gen.go b/vendor/golang.org/x/net/html/atom/gen.go deleted file mode 100644 index 6bfa8660..00000000 --- a/vendor/golang.org/x/net/html/atom/gen.go +++ /dev/null @@ -1,648 +0,0 @@ -// Copyright 2012 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build ignore - -package main - -// This program generates table.go and table_test.go. -// Invoke as -// -// go run gen.go |gofmt >table.go -// go run gen.go -test |gofmt >table_test.go - -import ( - "flag" - "fmt" - "math/rand" - "os" - "sort" - "strings" -) - -// identifier converts s to a Go exported identifier. -// It converts "div" to "Div" and "accept-charset" to "AcceptCharset". -func identifier(s string) string { - b := make([]byte, 0, len(s)) - cap := true - for _, c := range s { - if c == '-' { - cap = true - continue - } - if cap && 'a' <= c && c <= 'z' { - c -= 'a' - 'A' - } - cap = false - b = append(b, byte(c)) - } - return string(b) -} - -var test = flag.Bool("test", false, "generate table_test.go") - -func main() { - flag.Parse() - - var all []string - all = append(all, elements...) - all = append(all, attributes...) - all = append(all, eventHandlers...) - all = append(all, extra...) - sort.Strings(all) - - if *test { - fmt.Printf("// generated by go run gen.go -test; DO NOT EDIT\n\n") - fmt.Printf("package atom\n\n") - fmt.Printf("var testAtomList = []string{\n") - for _, s := range all { - fmt.Printf("\t%q,\n", s) - } - fmt.Printf("}\n") - return - } - - // uniq - lists have dups - // compute max len too - maxLen := 0 - w := 0 - for _, s := range all { - if w == 0 || all[w-1] != s { - if maxLen < len(s) { - maxLen = len(s) - } - all[w] = s - w++ - } - } - all = all[:w] - - // Find hash that minimizes table size. - var best *table - for i := 0; i < 1000000; i++ { - if best != nil && 1<<(best.k-1) < len(all) { - break - } - h := rand.Uint32() - for k := uint(0); k <= 16; k++ { - if best != nil && k >= best.k { - break - } - var t table - if t.init(h, k, all) { - best = &t - break - } - } - } - if best == nil { - fmt.Fprintf(os.Stderr, "failed to construct string table\n") - os.Exit(1) - } - - // Lay out strings, using overlaps when possible. - layout := append([]string{}, all...) - - // Remove strings that are substrings of other strings - for changed := true; changed; { - changed = false - for i, s := range layout { - if s == "" { - continue - } - for j, t := range layout { - if i != j && t != "" && strings.Contains(s, t) { - changed = true - layout[j] = "" - } - } - } - } - - // Join strings where one suffix matches another prefix. - for { - // Find best i, j, k such that layout[i][len-k:] == layout[j][:k], - // maximizing overlap length k. - besti := -1 - bestj := -1 - bestk := 0 - for i, s := range layout { - if s == "" { - continue - } - for j, t := range layout { - if i == j { - continue - } - for k := bestk + 1; k <= len(s) && k <= len(t); k++ { - if s[len(s)-k:] == t[:k] { - besti = i - bestj = j - bestk = k - } - } - } - } - if bestk > 0 { - layout[besti] += layout[bestj][bestk:] - layout[bestj] = "" - continue - } - break - } - - text := strings.Join(layout, "") - - atom := map[string]uint32{} - for _, s := range all { - off := strings.Index(text, s) - if off < 0 { - panic("lost string " + s) - } - atom[s] = uint32(off<<8 | len(s)) - } - - // Generate the Go code. - fmt.Printf("// generated by go run gen.go; DO NOT EDIT\n\n") - fmt.Printf("package atom\n\nconst (\n") - for _, s := range all { - fmt.Printf("\t%s Atom = %#x\n", identifier(s), atom[s]) - } - fmt.Printf(")\n\n") - - fmt.Printf("const hash0 = %#x\n\n", best.h0) - fmt.Printf("const maxAtomLen = %d\n\n", maxLen) - - fmt.Printf("var table = [1<<%d]Atom{\n", best.k) - for i, s := range best.tab { - if s == "" { - continue - } - fmt.Printf("\t%#x: %#x, // %s\n", i, atom[s], s) - } - fmt.Printf("}\n") - datasize := (1 << best.k) * 4 - - fmt.Printf("const atomText =\n") - textsize := len(text) - for len(text) > 60 { - fmt.Printf("\t%q +\n", text[:60]) - text = text[60:] - } - fmt.Printf("\t%q\n\n", text) - - fmt.Fprintf(os.Stderr, "%d atoms; %d string bytes + %d tables = %d total data\n", len(all), textsize, datasize, textsize+datasize) -} - -type byLen []string - -func (x byLen) Less(i, j int) bool { return len(x[i]) > len(x[j]) } -func (x byLen) Swap(i, j int) { x[i], x[j] = x[j], x[i] } -func (x byLen) Len() int { return len(x) } - -// fnv computes the FNV hash with an arbitrary starting value h. -func fnv(h uint32, s string) uint32 { - for i := 0; i < len(s); i++ { - h ^= uint32(s[i]) - h *= 16777619 - } - return h -} - -// A table represents an attempt at constructing the lookup table. -// The lookup table uses cuckoo hashing, meaning that each string -// can be found in one of two positions. -type table struct { - h0 uint32 - k uint - mask uint32 - tab []string -} - -// hash returns the two hashes for s. -func (t *table) hash(s string) (h1, h2 uint32) { - h := fnv(t.h0, s) - h1 = h & t.mask - h2 = (h >> 16) & t.mask - return -} - -// init initializes the table with the given parameters. -// h0 is the initial hash value, -// k is the number of bits of hash value to use, and -// x is the list of strings to store in the table. -// init returns false if the table cannot be constructed. -func (t *table) init(h0 uint32, k uint, x []string) bool { - t.h0 = h0 - t.k = k - t.tab = make([]string, 1<<k) - t.mask = 1<<k - 1 - for _, s := range x { - if !t.insert(s) { - return false - } - } - return true -} - -// insert inserts s in the table. -func (t *table) insert(s string) bool { - h1, h2 := t.hash(s) - if t.tab[h1] == "" { - t.tab[h1] = s - return true - } - if t.tab[h2] == "" { - t.tab[h2] = s - return true - } - if t.push(h1, 0) { - t.tab[h1] = s - return true - } - if t.push(h2, 0) { - t.tab[h2] = s - return true - } - return false -} - -// push attempts to push aside the entry in slot i. -func (t *table) push(i uint32, depth int) bool { - if depth > len(t.tab) { - return false - } - s := t.tab[i] - h1, h2 := t.hash(s) - j := h1 + h2 - i - if t.tab[j] != "" && !t.push(j, depth+1) { - return false - } - t.tab[j] = s - return true -} - -// The lists of element names and attribute keys were taken from -// https://html.spec.whatwg.org/multipage/indices.html#index -// as of the "HTML Living Standard - Last Updated 21 February 2015" version. - -var elements = []string{ - "a", - "abbr", - "address", - "area", - "article", - "aside", - "audio", - "b", - "base", - "bdi", - "bdo", - "blockquote", - "body", - "br", - "button", - "canvas", - "caption", - "cite", - "code", - "col", - "colgroup", - "command", - "data", - "datalist", - "dd", - "del", - "details", - "dfn", - "dialog", - "div", - "dl", - "dt", - "em", - "embed", - "fieldset", - "figcaption", - "figure", - "footer", - "form", - "h1", - "h2", - "h3", - "h4", - "h5", - "h6", - "head", - "header", - "hgroup", - "hr", - "html", - "i", - "iframe", - "img", - "input", - "ins", - "kbd", - "keygen", - "label", - "legend", - "li", - "link", - "map", - "mark", - "menu", - "menuitem", - "meta", - "meter", - "nav", - "noscript", - "object", - "ol", - "optgroup", - "option", - "output", - "p", - "param", - "pre", - "progress", - "q", - "rp", - "rt", - "ruby", - "s", - "samp", - "script", - "section", - "select", - "small", - "source", - "span", - "strong", - "style", - "sub", - "summary", - "sup", - "table", - "tbody", - "td", - "template", - "textarea", - "tfoot", - "th", - "thead", - "time", - "title", - "tr", - "track", - "u", - "ul", - "var", - "video", - "wbr", -} - -// https://html.spec.whatwg.org/multipage/indices.html#attributes-3 - -var attributes = []string{ - "abbr", - "accept", - "accept-charset", - "accesskey", - "action", - "alt", - "async", - "autocomplete", - "autofocus", - "autoplay", - "challenge", - "charset", - "checked", - "cite", - "class", - "cols", - "colspan", - "command", - "content", - "contenteditable", - "contextmenu", - "controls", - "coords", - "crossorigin", - "data", - "datetime", - "default", - "defer", - "dir", - "dirname", - "disabled", - "download", - "draggable", - "dropzone", - "enctype", - "for", - "form", - "formaction", - "formenctype", - "formmethod", - "formnovalidate", - "formtarget", - "headers", - "height", - "hidden", - "high", - "href", - "hreflang", - "http-equiv", - "icon", - "id", - "inputmode", - "ismap", - "itemid", - "itemprop", - "itemref", - "itemscope", - "itemtype", - "keytype", - "kind", - "label", - "lang", - "list", - "loop", - "low", - "manifest", - "max", - "maxlength", - "media", - "mediagroup", - "method", - "min", - "minlength", - "multiple", - "muted", - "name", - "novalidate", - "open", - "optimum", - "pattern", - "ping", - "placeholder", - "poster", - "preload", - "radiogroup", - "readonly", - "rel", - "required", - "reversed", - "rows", - "rowspan", - "sandbox", - "spellcheck", - "scope", - "scoped", - "seamless", - "selected", - "shape", - "size", - "sizes", - "sortable", - "sorted", - "span", - "src", - "srcdoc", - "srclang", - "start", - "step", - "style", - "tabindex", - "target", - "title", - "translate", - "type", - "typemustmatch", - "usemap", - "value", - "width", - "wrap", -} - -var eventHandlers = []string{ - "onabort", - "onautocomplete", - "onautocompleteerror", - "onafterprint", - "onbeforeprint", - "onbeforeunload", - "onblur", - "oncancel", - "oncanplay", - "oncanplaythrough", - "onchange", - "onclick", - "onclose", - "oncontextmenu", - "oncuechange", - "ondblclick", - "ondrag", - "ondragend", - "ondragenter", - "ondragleave", - "ondragover", - "ondragstart", - "ondrop", - "ondurationchange", - "onemptied", - "onended", - "onerror", - "onfocus", - "onhashchange", - "oninput", - "oninvalid", - "onkeydown", - "onkeypress", - "onkeyup", - "onlanguagechange", - "onload", - "onloadeddata", - "onloadedmetadata", - "onloadstart", - "onmessage", - "onmousedown", - "onmousemove", - "onmouseout", - "onmouseover", - "onmouseup", - "onmousewheel", - "onoffline", - "ononline", - "onpagehide", - "onpageshow", - "onpause", - "onplay", - "onplaying", - "onpopstate", - "onprogress", - "onratechange", - "onreset", - "onresize", - "onscroll", - "onseeked", - "onseeking", - "onselect", - "onshow", - "onsort", - "onstalled", - "onstorage", - "onsubmit", - "onsuspend", - "ontimeupdate", - "ontoggle", - "onunload", - "onvolumechange", - "onwaiting", -} - -// extra are ad-hoc values not covered by any of the lists above. -var extra = []string{ - "align", - "annotation", - "annotation-xml", - "applet", - "basefont", - "bgsound", - "big", - "blink", - "center", - "color", - "desc", - "face", - "font", - "foreignObject", // HTML is case-insensitive, but SVG-embedded-in-HTML is case-sensitive. - "foreignobject", - "frame", - "frameset", - "image", - "isindex", - "listing", - "malignmark", - "marquee", - "math", - "mglyph", - "mi", - "mn", - "mo", - "ms", - "mtext", - "nobr", - "noembed", - "noframes", - "plaintext", - "prompt", - "public", - "spacer", - "strike", - "svg", - "system", - "tt", - "xmp", -} diff --git a/vendor/golang.org/x/net/html/atom/table.go b/vendor/golang.org/x/net/html/atom/table.go deleted file mode 100644 index 2605ba31..00000000 --- a/vendor/golang.org/x/net/html/atom/table.go +++ /dev/null @@ -1,713 +0,0 @@ -// generated by go run gen.go; DO NOT EDIT - -package atom - -const ( - A Atom = 0x1 - Abbr Atom = 0x4 - Accept Atom = 0x2106 - AcceptCharset Atom = 0x210e - Accesskey Atom = 0x3309 - Action Atom = 0x1f606 - Address Atom = 0x4f307 - Align Atom = 0x1105 - Alt Atom = 0x4503 - Annotation Atom = 0x1670a - AnnotationXml Atom = 0x1670e - Applet Atom = 0x2b306 - Area Atom = 0x2fa04 - Article Atom = 0x38807 - Aside Atom = 0x8305 - Async Atom = 0x7b05 - Audio Atom = 0xa605 - Autocomplete Atom = 0x1fc0c - Autofocus Atom = 0xb309 - Autoplay Atom = 0xce08 - B Atom = 0x101 - Base Atom = 0xd604 - Basefont Atom = 0xd608 - Bdi Atom = 0x1a03 - Bdo Atom = 0xe703 - Bgsound Atom = 0x11807 - Big Atom = 0x12403 - Blink Atom = 0x12705 - Blockquote Atom = 0x12c0a - Body Atom = 0x2f04 - Br Atom = 0x202 - Button Atom = 0x13606 - Canvas Atom = 0x7f06 - Caption Atom = 0x1bb07 - Center Atom = 0x5b506 - Challenge Atom = 0x21f09 - Charset Atom = 0x2807 - Checked Atom = 0x32807 - Cite Atom = 0x3c804 - Class Atom = 0x4de05 - Code Atom = 0x14904 - Col Atom = 0x15003 - Colgroup Atom = 0x15008 - Color Atom = 0x15d05 - Cols Atom = 0x16204 - Colspan Atom = 0x16207 - Command Atom = 0x17507 - Content Atom = 0x42307 - Contenteditable Atom = 0x4230f - Contextmenu Atom = 0x3310b - Controls Atom = 0x18808 - Coords Atom = 0x19406 - Crossorigin Atom = 0x19f0b - Data Atom = 0x44a04 - Datalist Atom = 0x44a08 - Datetime Atom = 0x23c08 - Dd Atom = 0x26702 - Default Atom = 0x8607 - Defer Atom = 0x14b05 - Del Atom = 0x3ef03 - Desc Atom = 0x4db04 - Details Atom = 0x4807 - Dfn Atom = 0x6103 - Dialog Atom = 0x1b06 - Dir Atom = 0x6903 - Dirname Atom = 0x6907 - Disabled Atom = 0x10c08 - Div Atom = 0x11303 - Dl Atom = 0x11e02 - Download Atom = 0x40008 - Draggable Atom = 0x17b09 - Dropzone Atom = 0x39108 - Dt Atom = 0x50902 - Em Atom = 0x6502 - Embed Atom = 0x6505 - Enctype Atom = 0x21107 - Face Atom = 0x5b304 - Fieldset Atom = 0x1b008 - Figcaption Atom = 0x1b80a - Figure Atom = 0x1cc06 - Font Atom = 0xda04 - Footer Atom = 0x8d06 - For Atom = 0x1d803 - ForeignObject Atom = 0x1d80d - Foreignobject Atom = 0x1e50d - Form Atom = 0x1f204 - Formaction Atom = 0x1f20a - Formenctype Atom = 0x20d0b - Formmethod Atom = 0x2280a - Formnovalidate Atom = 0x2320e - Formtarget Atom = 0x2470a - Frame Atom = 0x9a05 - Frameset Atom = 0x9a08 - H1 Atom = 0x26e02 - H2 Atom = 0x29402 - H3 Atom = 0x2a702 - H4 Atom = 0x2e902 - H5 Atom = 0x2f302 - H6 Atom = 0x50b02 - Head Atom = 0x2d504 - Header Atom = 0x2d506 - Headers Atom = 0x2d507 - Height Atom = 0x25106 - Hgroup Atom = 0x25906 - Hidden Atom = 0x26506 - High Atom = 0x26b04 - Hr Atom = 0x27002 - Href Atom = 0x27004 - Hreflang Atom = 0x27008 - Html Atom = 0x25504 - HttpEquiv Atom = 0x2780a - I Atom = 0x601 - Icon Atom = 0x42204 - Id Atom = 0x8502 - Iframe Atom = 0x29606 - Image Atom = 0x29c05 - Img Atom = 0x2a103 - Input Atom = 0x3e805 - Inputmode Atom = 0x3e809 - Ins Atom = 0x1a803 - Isindex Atom = 0x2a907 - Ismap Atom = 0x2b005 - Itemid Atom = 0x33c06 - Itemprop Atom = 0x3c908 - Itemref Atom = 0x5ad07 - Itemscope Atom = 0x2b909 - Itemtype Atom = 0x2c308 - Kbd Atom = 0x1903 - Keygen Atom = 0x3906 - Keytype Atom = 0x53707 - Kind Atom = 0x10904 - Label Atom = 0xf005 - Lang Atom = 0x27404 - Legend Atom = 0x18206 - Li Atom = 0x1202 - Link Atom = 0x12804 - List Atom = 0x44e04 - Listing Atom = 0x44e07 - Loop Atom = 0xf404 - Low Atom = 0x11f03 - Malignmark Atom = 0x100a - Manifest Atom = 0x5f108 - Map Atom = 0x2b203 - Mark Atom = 0x1604 - Marquee Atom = 0x2cb07 - Math Atom = 0x2d204 - Max Atom = 0x2e103 - Maxlength Atom = 0x2e109 - Media Atom = 0x6e05 - Mediagroup Atom = 0x6e0a - Menu Atom = 0x33804 - Menuitem Atom = 0x33808 - Meta Atom = 0x45d04 - Meter Atom = 0x24205 - Method Atom = 0x22c06 - Mglyph Atom = 0x2a206 - Mi Atom = 0x2eb02 - Min Atom = 0x2eb03 - Minlength Atom = 0x2eb09 - Mn Atom = 0x23502 - Mo Atom = 0x3ed02 - Ms Atom = 0x2bc02 - Mtext Atom = 0x2f505 - Multiple Atom = 0x30308 - Muted Atom = 0x30b05 - Name Atom = 0x6c04 - Nav Atom = 0x3e03 - Nobr Atom = 0x5704 - Noembed Atom = 0x6307 - Noframes Atom = 0x9808 - Noscript Atom = 0x3d208 - Novalidate Atom = 0x2360a - Object Atom = 0x1ec06 - Ol Atom = 0xc902 - Onabort Atom = 0x13a07 - Onafterprint Atom = 0x1c00c - Onautocomplete Atom = 0x1fa0e - Onautocompleteerror Atom = 0x1fa13 - Onbeforeprint Atom = 0x6040d - Onbeforeunload Atom = 0x4e70e - Onblur Atom = 0xaa06 - Oncancel Atom = 0xe908 - Oncanplay Atom = 0x28509 - Oncanplaythrough Atom = 0x28510 - Onchange Atom = 0x3a708 - Onclick Atom = 0x31007 - Onclose Atom = 0x31707 - Oncontextmenu Atom = 0x32f0d - Oncuechange Atom = 0x3420b - Ondblclick Atom = 0x34d0a - Ondrag Atom = 0x35706 - Ondragend Atom = 0x35709 - Ondragenter Atom = 0x3600b - Ondragleave Atom = 0x36b0b - Ondragover Atom = 0x3760a - Ondragstart Atom = 0x3800b - Ondrop Atom = 0x38f06 - Ondurationchange Atom = 0x39f10 - Onemptied Atom = 0x39609 - Onended Atom = 0x3af07 - Onerror Atom = 0x3b607 - Onfocus Atom = 0x3bd07 - Onhashchange Atom = 0x3da0c - Oninput Atom = 0x3e607 - Oninvalid Atom = 0x3f209 - Onkeydown Atom = 0x3fb09 - Onkeypress Atom = 0x4080a - Onkeyup Atom = 0x41807 - Onlanguagechange Atom = 0x43210 - Onload Atom = 0x44206 - Onloadeddata Atom = 0x4420c - Onloadedmetadata Atom = 0x45510 - Onloadstart Atom = 0x46b0b - Onmessage Atom = 0x47609 - Onmousedown Atom = 0x47f0b - Onmousemove Atom = 0x48a0b - Onmouseout Atom = 0x4950a - Onmouseover Atom = 0x4a20b - Onmouseup Atom = 0x4ad09 - Onmousewheel Atom = 0x4b60c - Onoffline Atom = 0x4c209 - Ononline Atom = 0x4cb08 - Onpagehide Atom = 0x4d30a - Onpageshow Atom = 0x4fe0a - Onpause Atom = 0x50d07 - Onplay Atom = 0x51706 - Onplaying Atom = 0x51709 - Onpopstate Atom = 0x5200a - Onprogress Atom = 0x52a0a - Onratechange Atom = 0x53e0c - Onreset Atom = 0x54a07 - Onresize Atom = 0x55108 - Onscroll Atom = 0x55f08 - Onseeked Atom = 0x56708 - Onseeking Atom = 0x56f09 - Onselect Atom = 0x57808 - Onshow Atom = 0x58206 - Onsort Atom = 0x58b06 - Onstalled Atom = 0x59509 - Onstorage Atom = 0x59e09 - Onsubmit Atom = 0x5a708 - Onsuspend Atom = 0x5bb09 - Ontimeupdate Atom = 0xdb0c - Ontoggle Atom = 0x5c408 - Onunload Atom = 0x5cc08 - Onvolumechange Atom = 0x5d40e - Onwaiting Atom = 0x5e209 - Open Atom = 0x3cf04 - Optgroup Atom = 0xf608 - Optimum Atom = 0x5eb07 - Option Atom = 0x60006 - Output Atom = 0x49c06 - P Atom = 0xc01 - Param Atom = 0xc05 - Pattern Atom = 0x5107 - Ping Atom = 0x7704 - Placeholder Atom = 0xc30b - Plaintext Atom = 0xfd09 - Poster Atom = 0x15706 - Pre Atom = 0x25e03 - Preload Atom = 0x25e07 - Progress Atom = 0x52c08 - Prompt Atom = 0x5fa06 - Public Atom = 0x41e06 - Q Atom = 0x13101 - Radiogroup Atom = 0x30a - Readonly Atom = 0x2fb08 - Rel Atom = 0x25f03 - Required Atom = 0x1d008 - Reversed Atom = 0x5a08 - Rows Atom = 0x9204 - Rowspan Atom = 0x9207 - Rp Atom = 0x1c602 - Rt Atom = 0x13f02 - Ruby Atom = 0xaf04 - S Atom = 0x2c01 - Samp Atom = 0x4e04 - Sandbox Atom = 0xbb07 - Scope Atom = 0x2bd05 - Scoped Atom = 0x2bd06 - Script Atom = 0x3d406 - Seamless Atom = 0x31c08 - Section Atom = 0x4e207 - Select Atom = 0x57a06 - Selected Atom = 0x57a08 - Shape Atom = 0x4f905 - Size Atom = 0x55504 - Sizes Atom = 0x55505 - Small Atom = 0x18f05 - Sortable Atom = 0x58d08 - Sorted Atom = 0x19906 - Source Atom = 0x1aa06 - Spacer Atom = 0x2db06 - Span Atom = 0x9504 - Spellcheck Atom = 0x3230a - Src Atom = 0x3c303 - Srcdoc Atom = 0x3c306 - Srclang Atom = 0x41107 - Start Atom = 0x38605 - Step Atom = 0x5f704 - Strike Atom = 0x53306 - Strong Atom = 0x55906 - Style Atom = 0x61105 - Sub Atom = 0x5a903 - Summary Atom = 0x61607 - Sup Atom = 0x61d03 - Svg Atom = 0x62003 - System Atom = 0x62306 - Tabindex Atom = 0x46308 - Table Atom = 0x42d05 - Target Atom = 0x24b06 - Tbody Atom = 0x2e05 - Td Atom = 0x4702 - Template Atom = 0x62608 - Textarea Atom = 0x2f608 - Tfoot Atom = 0x8c05 - Th Atom = 0x22e02 - Thead Atom = 0x2d405 - Time Atom = 0xdd04 - Title Atom = 0xa105 - Tr Atom = 0x10502 - Track Atom = 0x10505 - Translate Atom = 0x14009 - Tt Atom = 0x5302 - Type Atom = 0x21404 - Typemustmatch Atom = 0x2140d - U Atom = 0xb01 - Ul Atom = 0x8a02 - Usemap Atom = 0x51106 - Value Atom = 0x4005 - Var Atom = 0x11503 - Video Atom = 0x28105 - Wbr Atom = 0x12103 - Width Atom = 0x50705 - Wrap Atom = 0x58704 - Xmp Atom = 0xc103 -) - -const hash0 = 0xc17da63e - -const maxAtomLen = 19 - -var table = [1 << 9]Atom{ - 0x1: 0x48a0b, // onmousemove - 0x2: 0x5e209, // onwaiting - 0x3: 0x1fa13, // onautocompleteerror - 0x4: 0x5fa06, // prompt - 0x7: 0x5eb07, // optimum - 0x8: 0x1604, // mark - 0xa: 0x5ad07, // itemref - 0xb: 0x4fe0a, // onpageshow - 0xc: 0x57a06, // select - 0xd: 0x17b09, // draggable - 0xe: 0x3e03, // nav - 0xf: 0x17507, // command - 0x11: 0xb01, // u - 0x14: 0x2d507, // headers - 0x15: 0x44a08, // datalist - 0x17: 0x4e04, // samp - 0x1a: 0x3fb09, // onkeydown - 0x1b: 0x55f08, // onscroll - 0x1c: 0x15003, // col - 0x20: 0x3c908, // itemprop - 0x21: 0x2780a, // http-equiv - 0x22: 0x61d03, // sup - 0x24: 0x1d008, // required - 0x2b: 0x25e07, // preload - 0x2c: 0x6040d, // onbeforeprint - 0x2d: 0x3600b, // ondragenter - 0x2e: 0x50902, // dt - 0x2f: 0x5a708, // onsubmit - 0x30: 0x27002, // hr - 0x31: 0x32f0d, // oncontextmenu - 0x33: 0x29c05, // image - 0x34: 0x50d07, // onpause - 0x35: 0x25906, // hgroup - 0x36: 0x7704, // ping - 0x37: 0x57808, // onselect - 0x3a: 0x11303, // div - 0x3b: 0x1fa0e, // onautocomplete - 0x40: 0x2eb02, // mi - 0x41: 0x31c08, // seamless - 0x42: 0x2807, // charset - 0x43: 0x8502, // id - 0x44: 0x5200a, // onpopstate - 0x45: 0x3ef03, // del - 0x46: 0x2cb07, // marquee - 0x47: 0x3309, // accesskey - 0x49: 0x8d06, // footer - 0x4a: 0x44e04, // list - 0x4b: 0x2b005, // ismap - 0x51: 0x33804, // menu - 0x52: 0x2f04, // body - 0x55: 0x9a08, // frameset - 0x56: 0x54a07, // onreset - 0x57: 0x12705, // blink - 0x58: 0xa105, // title - 0x59: 0x38807, // article - 0x5b: 0x22e02, // th - 0x5d: 0x13101, // q - 0x5e: 0x3cf04, // open - 0x5f: 0x2fa04, // area - 0x61: 0x44206, // onload - 0x62: 0xda04, // font - 0x63: 0xd604, // base - 0x64: 0x16207, // colspan - 0x65: 0x53707, // keytype - 0x66: 0x11e02, // dl - 0x68: 0x1b008, // fieldset - 0x6a: 0x2eb03, // min - 0x6b: 0x11503, // var - 0x6f: 0x2d506, // header - 0x70: 0x13f02, // rt - 0x71: 0x15008, // colgroup - 0x72: 0x23502, // mn - 0x74: 0x13a07, // onabort - 0x75: 0x3906, // keygen - 0x76: 0x4c209, // onoffline - 0x77: 0x21f09, // challenge - 0x78: 0x2b203, // map - 0x7a: 0x2e902, // h4 - 0x7b: 0x3b607, // onerror - 0x7c: 0x2e109, // maxlength - 0x7d: 0x2f505, // mtext - 0x7e: 0xbb07, // sandbox - 0x7f: 0x58b06, // onsort - 0x80: 0x100a, // malignmark - 0x81: 0x45d04, // meta - 0x82: 0x7b05, // async - 0x83: 0x2a702, // h3 - 0x84: 0x26702, // dd - 0x85: 0x27004, // href - 0x86: 0x6e0a, // mediagroup - 0x87: 0x19406, // coords - 0x88: 0x41107, // srclang - 0x89: 0x34d0a, // ondblclick - 0x8a: 0x4005, // value - 0x8c: 0xe908, // oncancel - 0x8e: 0x3230a, // spellcheck - 0x8f: 0x9a05, // frame - 0x91: 0x12403, // big - 0x94: 0x1f606, // action - 0x95: 0x6903, // dir - 0x97: 0x2fb08, // readonly - 0x99: 0x42d05, // table - 0x9a: 0x61607, // summary - 0x9b: 0x12103, // wbr - 0x9c: 0x30a, // radiogroup - 0x9d: 0x6c04, // name - 0x9f: 0x62306, // system - 0xa1: 0x15d05, // color - 0xa2: 0x7f06, // canvas - 0xa3: 0x25504, // html - 0xa5: 0x56f09, // onseeking - 0xac: 0x4f905, // shape - 0xad: 0x25f03, // rel - 0xae: 0x28510, // oncanplaythrough - 0xaf: 0x3760a, // ondragover - 0xb0: 0x62608, // template - 0xb1: 0x1d80d, // foreignObject - 0xb3: 0x9204, // rows - 0xb6: 0x44e07, // listing - 0xb7: 0x49c06, // output - 0xb9: 0x3310b, // contextmenu - 0xbb: 0x11f03, // low - 0xbc: 0x1c602, // rp - 0xbd: 0x5bb09, // onsuspend - 0xbe: 0x13606, // button - 0xbf: 0x4db04, // desc - 0xc1: 0x4e207, // section - 0xc2: 0x52a0a, // onprogress - 0xc3: 0x59e09, // onstorage - 0xc4: 0x2d204, // math - 0xc5: 0x4503, // alt - 0xc7: 0x8a02, // ul - 0xc8: 0x5107, // pattern - 0xc9: 0x4b60c, // onmousewheel - 0xca: 0x35709, // ondragend - 0xcb: 0xaf04, // ruby - 0xcc: 0xc01, // p - 0xcd: 0x31707, // onclose - 0xce: 0x24205, // meter - 0xcf: 0x11807, // bgsound - 0xd2: 0x25106, // height - 0xd4: 0x101, // b - 0xd5: 0x2c308, // itemtype - 0xd8: 0x1bb07, // caption - 0xd9: 0x10c08, // disabled - 0xdb: 0x33808, // menuitem - 0xdc: 0x62003, // svg - 0xdd: 0x18f05, // small - 0xde: 0x44a04, // data - 0xe0: 0x4cb08, // ononline - 0xe1: 0x2a206, // mglyph - 0xe3: 0x6505, // embed - 0xe4: 0x10502, // tr - 0xe5: 0x46b0b, // onloadstart - 0xe7: 0x3c306, // srcdoc - 0xeb: 0x5c408, // ontoggle - 0xed: 0xe703, // bdo - 0xee: 0x4702, // td - 0xef: 0x8305, // aside - 0xf0: 0x29402, // h2 - 0xf1: 0x52c08, // progress - 0xf2: 0x12c0a, // blockquote - 0xf4: 0xf005, // label - 0xf5: 0x601, // i - 0xf7: 0x9207, // rowspan - 0xfb: 0x51709, // onplaying - 0xfd: 0x2a103, // img - 0xfe: 0xf608, // optgroup - 0xff: 0x42307, // content - 0x101: 0x53e0c, // onratechange - 0x103: 0x3da0c, // onhashchange - 0x104: 0x4807, // details - 0x106: 0x40008, // download - 0x109: 0x14009, // translate - 0x10b: 0x4230f, // contenteditable - 0x10d: 0x36b0b, // ondragleave - 0x10e: 0x2106, // accept - 0x10f: 0x57a08, // selected - 0x112: 0x1f20a, // formaction - 0x113: 0x5b506, // center - 0x115: 0x45510, // onloadedmetadata - 0x116: 0x12804, // link - 0x117: 0xdd04, // time - 0x118: 0x19f0b, // crossorigin - 0x119: 0x3bd07, // onfocus - 0x11a: 0x58704, // wrap - 0x11b: 0x42204, // icon - 0x11d: 0x28105, // video - 0x11e: 0x4de05, // class - 0x121: 0x5d40e, // onvolumechange - 0x122: 0xaa06, // onblur - 0x123: 0x2b909, // itemscope - 0x124: 0x61105, // style - 0x127: 0x41e06, // public - 0x129: 0x2320e, // formnovalidate - 0x12a: 0x58206, // onshow - 0x12c: 0x51706, // onplay - 0x12d: 0x3c804, // cite - 0x12e: 0x2bc02, // ms - 0x12f: 0xdb0c, // ontimeupdate - 0x130: 0x10904, // kind - 0x131: 0x2470a, // formtarget - 0x135: 0x3af07, // onended - 0x136: 0x26506, // hidden - 0x137: 0x2c01, // s - 0x139: 0x2280a, // formmethod - 0x13a: 0x3e805, // input - 0x13c: 0x50b02, // h6 - 0x13d: 0xc902, // ol - 0x13e: 0x3420b, // oncuechange - 0x13f: 0x1e50d, // foreignobject - 0x143: 0x4e70e, // onbeforeunload - 0x144: 0x2bd05, // scope - 0x145: 0x39609, // onemptied - 0x146: 0x14b05, // defer - 0x147: 0xc103, // xmp - 0x148: 0x39f10, // ondurationchange - 0x149: 0x1903, // kbd - 0x14c: 0x47609, // onmessage - 0x14d: 0x60006, // option - 0x14e: 0x2eb09, // minlength - 0x14f: 0x32807, // checked - 0x150: 0xce08, // autoplay - 0x152: 0x202, // br - 0x153: 0x2360a, // novalidate - 0x156: 0x6307, // noembed - 0x159: 0x31007, // onclick - 0x15a: 0x47f0b, // onmousedown - 0x15b: 0x3a708, // onchange - 0x15e: 0x3f209, // oninvalid - 0x15f: 0x2bd06, // scoped - 0x160: 0x18808, // controls - 0x161: 0x30b05, // muted - 0x162: 0x58d08, // sortable - 0x163: 0x51106, // usemap - 0x164: 0x1b80a, // figcaption - 0x165: 0x35706, // ondrag - 0x166: 0x26b04, // high - 0x168: 0x3c303, // src - 0x169: 0x15706, // poster - 0x16b: 0x1670e, // annotation-xml - 0x16c: 0x5f704, // step - 0x16d: 0x4, // abbr - 0x16e: 0x1b06, // dialog - 0x170: 0x1202, // li - 0x172: 0x3ed02, // mo - 0x175: 0x1d803, // for - 0x176: 0x1a803, // ins - 0x178: 0x55504, // size - 0x179: 0x43210, // onlanguagechange - 0x17a: 0x8607, // default - 0x17b: 0x1a03, // bdi - 0x17c: 0x4d30a, // onpagehide - 0x17d: 0x6907, // dirname - 0x17e: 0x21404, // type - 0x17f: 0x1f204, // form - 0x181: 0x28509, // oncanplay - 0x182: 0x6103, // dfn - 0x183: 0x46308, // tabindex - 0x186: 0x6502, // em - 0x187: 0x27404, // lang - 0x189: 0x39108, // dropzone - 0x18a: 0x4080a, // onkeypress - 0x18b: 0x23c08, // datetime - 0x18c: 0x16204, // cols - 0x18d: 0x1, // a - 0x18e: 0x4420c, // onloadeddata - 0x190: 0xa605, // audio - 0x192: 0x2e05, // tbody - 0x193: 0x22c06, // method - 0x195: 0xf404, // loop - 0x196: 0x29606, // iframe - 0x198: 0x2d504, // head - 0x19e: 0x5f108, // manifest - 0x19f: 0xb309, // autofocus - 0x1a0: 0x14904, // code - 0x1a1: 0x55906, // strong - 0x1a2: 0x30308, // multiple - 0x1a3: 0xc05, // param - 0x1a6: 0x21107, // enctype - 0x1a7: 0x5b304, // face - 0x1a8: 0xfd09, // plaintext - 0x1a9: 0x26e02, // h1 - 0x1aa: 0x59509, // onstalled - 0x1ad: 0x3d406, // script - 0x1ae: 0x2db06, // spacer - 0x1af: 0x55108, // onresize - 0x1b0: 0x4a20b, // onmouseover - 0x1b1: 0x5cc08, // onunload - 0x1b2: 0x56708, // onseeked - 0x1b4: 0x2140d, // typemustmatch - 0x1b5: 0x1cc06, // figure - 0x1b6: 0x4950a, // onmouseout - 0x1b7: 0x25e03, // pre - 0x1b8: 0x50705, // width - 0x1b9: 0x19906, // sorted - 0x1bb: 0x5704, // nobr - 0x1be: 0x5302, // tt - 0x1bf: 0x1105, // align - 0x1c0: 0x3e607, // oninput - 0x1c3: 0x41807, // onkeyup - 0x1c6: 0x1c00c, // onafterprint - 0x1c7: 0x210e, // accept-charset - 0x1c8: 0x33c06, // itemid - 0x1c9: 0x3e809, // inputmode - 0x1cb: 0x53306, // strike - 0x1cc: 0x5a903, // sub - 0x1cd: 0x10505, // track - 0x1ce: 0x38605, // start - 0x1d0: 0xd608, // basefont - 0x1d6: 0x1aa06, // source - 0x1d7: 0x18206, // legend - 0x1d8: 0x2d405, // thead - 0x1da: 0x8c05, // tfoot - 0x1dd: 0x1ec06, // object - 0x1de: 0x6e05, // media - 0x1df: 0x1670a, // annotation - 0x1e0: 0x20d0b, // formenctype - 0x1e2: 0x3d208, // noscript - 0x1e4: 0x55505, // sizes - 0x1e5: 0x1fc0c, // autocomplete - 0x1e6: 0x9504, // span - 0x1e7: 0x9808, // noframes - 0x1e8: 0x24b06, // target - 0x1e9: 0x38f06, // ondrop - 0x1ea: 0x2b306, // applet - 0x1ec: 0x5a08, // reversed - 0x1f0: 0x2a907, // isindex - 0x1f3: 0x27008, // hreflang - 0x1f5: 0x2f302, // h5 - 0x1f6: 0x4f307, // address - 0x1fa: 0x2e103, // max - 0x1fb: 0xc30b, // placeholder - 0x1fc: 0x2f608, // textarea - 0x1fe: 0x4ad09, // onmouseup - 0x1ff: 0x3800b, // ondragstart -} - -const atomText = "abbradiogrouparamalignmarkbdialogaccept-charsetbodyaccesskey" + - "genavaluealtdetailsampatternobreversedfnoembedirnamediagroup" + - "ingasyncanvasidefaultfooterowspanoframesetitleaudionblurubya" + - "utofocusandboxmplaceholderautoplaybasefontimeupdatebdoncance" + - "labelooptgrouplaintextrackindisabledivarbgsoundlowbrbigblink" + - "blockquotebuttonabortranslatecodefercolgroupostercolorcolspa" + - "nnotation-xmlcommandraggablegendcontrolsmallcoordsortedcross" + - "originsourcefieldsetfigcaptionafterprintfigurequiredforeignO" + - "bjectforeignobjectformactionautocompleteerrorformenctypemust" + - "matchallengeformmethodformnovalidatetimeterformtargetheightm" + - "lhgroupreloadhiddenhigh1hreflanghttp-equivideoncanplaythroug" + - "h2iframeimageimglyph3isindexismappletitemscopeditemtypemarqu" + - "eematheaderspacermaxlength4minlength5mtextareadonlymultiplem" + - "utedonclickoncloseamlesspellcheckedoncontextmenuitemidoncuec" + - "hangeondblclickondragendondragenterondragleaveondragoverondr" + - "agstarticleondropzonemptiedondurationchangeonendedonerroronf" + - "ocusrcdocitempropenoscriptonhashchangeoninputmodeloninvalido" + - "nkeydownloadonkeypressrclangonkeyupublicontenteditableonlang" + - "uagechangeonloadeddatalistingonloadedmetadatabindexonloadsta" + - "rtonmessageonmousedownonmousemoveonmouseoutputonmouseoveronm" + - "ouseuponmousewheelonofflineononlineonpagehidesclassectionbef" + - "oreunloaddresshapeonpageshowidth6onpausemaponplayingonpopsta" + - "teonprogresstrikeytypeonratechangeonresetonresizestrongonscr" + - "ollonseekedonseekingonselectedonshowraponsortableonstalledon" + - "storageonsubmitemrefacenteronsuspendontoggleonunloadonvolume" + - "changeonwaitingoptimumanifestepromptoptionbeforeprintstylesu" + - "mmarysupsvgsystemplate" diff --git a/vendor/golang.org/x/net/html/charset/charset.go b/vendor/golang.org/x/net/html/charset/charset.go deleted file mode 100644 index 13bed159..00000000 --- a/vendor/golang.org/x/net/html/charset/charset.go +++ /dev/null @@ -1,257 +0,0 @@ -// Copyright 2013 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package charset provides common text encodings for HTML documents. -// -// The mapping from encoding labels to encodings is defined at -// https://encoding.spec.whatwg.org/. -package charset // import "golang.org/x/net/html/charset" - -import ( - "bytes" - "fmt" - "io" - "mime" - "strings" - "unicode/utf8" - - "golang.org/x/net/html" - "golang.org/x/text/encoding" - "golang.org/x/text/encoding/charmap" - "golang.org/x/text/encoding/htmlindex" - "golang.org/x/text/transform" -) - -// Lookup returns the encoding with the specified label, and its canonical -// name. It returns nil and the empty string if label is not one of the -// standard encodings for HTML. Matching is case-insensitive and ignores -// leading and trailing whitespace. Encoders will use HTML escape sequences for -// runes that are not supported by the character set. -func Lookup(label string) (e encoding.Encoding, name string) { - e, err := htmlindex.Get(label) - if err != nil { - return nil, "" - } - name, _ = htmlindex.Name(e) - return &htmlEncoding{e}, name -} - -type htmlEncoding struct{ encoding.Encoding } - -func (h *htmlEncoding) NewEncoder() *encoding.Encoder { - // HTML requires a non-terminating legacy encoder. We use HTML escapes to - // substitute unsupported code points. - return encoding.HTMLEscapeUnsupported(h.Encoding.NewEncoder()) -} - -// DetermineEncoding determines the encoding of an HTML document by examining -// up to the first 1024 bytes of content and the declared Content-Type. -// -// See http://www.whatwg.org/specs/web-apps/current-work/multipage/parsing.html#determining-the-character-encoding -func DetermineEncoding(content []byte, contentType string) (e encoding.Encoding, name string, certain bool) { - if len(content) > 1024 { - content = content[:1024] - } - - for _, b := range boms { - if bytes.HasPrefix(content, b.bom) { - e, name = Lookup(b.enc) - return e, name, true - } - } - - if _, params, err := mime.ParseMediaType(contentType); err == nil { - if cs, ok := params["charset"]; ok { - if e, name = Lookup(cs); e != nil { - return e, name, true - } - } - } - - if len(content) > 0 { - e, name = prescan(content) - if e != nil { - return e, name, false - } - } - - // Try to detect UTF-8. - // First eliminate any partial rune at the end. - for i := len(content) - 1; i >= 0 && i > len(content)-4; i-- { - b := content[i] - if b < 0x80 { - break - } - if utf8.RuneStart(b) { - content = content[:i] - break - } - } - hasHighBit := false - for _, c := range content { - if c >= 0x80 { - hasHighBit = true - break - } - } - if hasHighBit && utf8.Valid(content) { - return encoding.Nop, "utf-8", false - } - - // TODO: change default depending on user's locale? - return charmap.Windows1252, "windows-1252", false -} - -// NewReader returns an io.Reader that converts the content of r to UTF-8. -// It calls DetermineEncoding to find out what r's encoding is. -func NewReader(r io.Reader, contentType string) (io.Reader, error) { - preview := make([]byte, 1024) - n, err := io.ReadFull(r, preview) - switch { - case err == io.ErrUnexpectedEOF: - preview = preview[:n] - r = bytes.NewReader(preview) - case err != nil: - return nil, err - default: - r = io.MultiReader(bytes.NewReader(preview), r) - } - - if e, _, _ := DetermineEncoding(preview, contentType); e != encoding.Nop { - r = transform.NewReader(r, e.NewDecoder()) - } - return r, nil -} - -// NewReaderLabel returns a reader that converts from the specified charset to -// UTF-8. It uses Lookup to find the encoding that corresponds to label, and -// returns an error if Lookup returns nil. It is suitable for use as -// encoding/xml.Decoder's CharsetReader function. -func NewReaderLabel(label string, input io.Reader) (io.Reader, error) { - e, _ := Lookup(label) - if e == nil { - return nil, fmt.Errorf("unsupported charset: %q", label) - } - return transform.NewReader(input, e.NewDecoder()), nil -} - -func prescan(content []byte) (e encoding.Encoding, name string) { - z := html.NewTokenizer(bytes.NewReader(content)) - for { - switch z.Next() { - case html.ErrorToken: - return nil, "" - - case html.StartTagToken, html.SelfClosingTagToken: - tagName, hasAttr := z.TagName() - if !bytes.Equal(tagName, []byte("meta")) { - continue - } - attrList := make(map[string]bool) - gotPragma := false - - const ( - dontKnow = iota - doNeedPragma - doNotNeedPragma - ) - needPragma := dontKnow - - name = "" - e = nil - for hasAttr { - var key, val []byte - key, val, hasAttr = z.TagAttr() - ks := string(key) - if attrList[ks] { - continue - } - attrList[ks] = true - for i, c := range val { - if 'A' <= c && c <= 'Z' { - val[i] = c + 0x20 - } - } - - switch ks { - case "http-equiv": - if bytes.Equal(val, []byte("content-type")) { - gotPragma = true - } - - case "content": - if e == nil { - name = fromMetaElement(string(val)) - if name != "" { - e, name = Lookup(name) - if e != nil { - needPragma = doNeedPragma - } - } - } - - case "charset": - e, name = Lookup(string(val)) - needPragma = doNotNeedPragma - } - } - - if needPragma == dontKnow || needPragma == doNeedPragma && !gotPragma { - continue - } - - if strings.HasPrefix(name, "utf-16") { - name = "utf-8" - e = encoding.Nop - } - - if e != nil { - return e, name - } - } - } -} - -func fromMetaElement(s string) string { - for s != "" { - csLoc := strings.Index(s, "charset") - if csLoc == -1 { - return "" - } - s = s[csLoc+len("charset"):] - s = strings.TrimLeft(s, " \t\n\f\r") - if !strings.HasPrefix(s, "=") { - continue - } - s = s[1:] - s = strings.TrimLeft(s, " \t\n\f\r") - if s == "" { - return "" - } - if q := s[0]; q == '"' || q == '\'' { - s = s[1:] - closeQuote := strings.IndexRune(s, rune(q)) - if closeQuote == -1 { - return "" - } - return s[:closeQuote] - } - - end := strings.IndexAny(s, "; \t\n\f\r") - if end == -1 { - end = len(s) - } - return s[:end] - } - return "" -} - -var boms = []struct { - bom []byte - enc string -}{ - {[]byte{0xfe, 0xff}, "utf-16be"}, - {[]byte{0xff, 0xfe}, "utf-16le"}, - {[]byte{0xef, 0xbb, 0xbf}, "utf-8"}, -} diff --git a/vendor/golang.org/x/net/html/const.go b/vendor/golang.org/x/net/html/const.go deleted file mode 100644 index 52f651ff..00000000 --- a/vendor/golang.org/x/net/html/const.go +++ /dev/null @@ -1,102 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package html - -// Section 12.2.3.2 of the HTML5 specification says "The following elements -// have varying levels of special parsing rules". -// https://html.spec.whatwg.org/multipage/syntax.html#the-stack-of-open-elements -var isSpecialElementMap = map[string]bool{ - "address": true, - "applet": true, - "area": true, - "article": true, - "aside": true, - "base": true, - "basefont": true, - "bgsound": true, - "blockquote": true, - "body": true, - "br": true, - "button": true, - "caption": true, - "center": true, - "col": true, - "colgroup": true, - "dd": true, - "details": true, - "dir": true, - "div": true, - "dl": true, - "dt": true, - "embed": true, - "fieldset": true, - "figcaption": true, - "figure": true, - "footer": true, - "form": true, - "frame": true, - "frameset": true, - "h1": true, - "h2": true, - "h3": true, - "h4": true, - "h5": true, - "h6": true, - "head": true, - "header": true, - "hgroup": true, - "hr": true, - "html": true, - "iframe": true, - "img": true, - "input": true, - "isindex": true, - "li": true, - "link": true, - "listing": true, - "marquee": true, - "menu": true, - "meta": true, - "nav": true, - "noembed": true, - "noframes": true, - "noscript": true, - "object": true, - "ol": true, - "p": true, - "param": true, - "plaintext": true, - "pre": true, - "script": true, - "section": true, - "select": true, - "source": true, - "style": true, - "summary": true, - "table": true, - "tbody": true, - "td": true, - "template": true, - "textarea": true, - "tfoot": true, - "th": true, - "thead": true, - "title": true, - "tr": true, - "track": true, - "ul": true, - "wbr": true, - "xmp": true, -} - -func isSpecialElement(element *Node) bool { - switch element.Namespace { - case "", "html": - return isSpecialElementMap[element.Data] - case "svg": - return element.Data == "foreignObject" - } - return false -} diff --git a/vendor/golang.org/x/net/html/doc.go b/vendor/golang.org/x/net/html/doc.go deleted file mode 100644 index 94f49687..00000000 --- a/vendor/golang.org/x/net/html/doc.go +++ /dev/null @@ -1,106 +0,0 @@ -// Copyright 2010 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -/* -Package html implements an HTML5-compliant tokenizer and parser. - -Tokenization is done by creating a Tokenizer for an io.Reader r. It is the -caller's responsibility to ensure that r provides UTF-8 encoded HTML. - - z := html.NewTokenizer(r) - -Given a Tokenizer z, the HTML is tokenized by repeatedly calling z.Next(), -which parses the next token and returns its type, or an error: - - for { - tt := z.Next() - if tt == html.ErrorToken { - // ... - return ... - } - // Process the current token. - } - -There are two APIs for retrieving the current token. The high-level API is to -call Token; the low-level API is to call Text or TagName / TagAttr. Both APIs -allow optionally calling Raw after Next but before Token, Text, TagName, or -TagAttr. In EBNF notation, the valid call sequence per token is: - - Next {Raw} [ Token | Text | TagName {TagAttr} ] - -Token returns an independent data structure that completely describes a token. -Entities (such as "<") are unescaped, tag names and attribute keys are -lower-cased, and attributes are collected into a []Attribute. For example: - - for { - if z.Next() == html.ErrorToken { - // Returning io.EOF indicates success. - return z.Err() - } - emitToken(z.Token()) - } - -The low-level API performs fewer allocations and copies, but the contents of -the []byte values returned by Text, TagName and TagAttr may change on the next -call to Next. For example, to extract an HTML page's anchor text: - - depth := 0 - for { - tt := z.Next() - switch tt { - case ErrorToken: - return z.Err() - case TextToken: - if depth > 0 { - // emitBytes should copy the []byte it receives, - // if it doesn't process it immediately. - emitBytes(z.Text()) - } - case StartTagToken, EndTagToken: - tn, _ := z.TagName() - if len(tn) == 1 && tn[0] == 'a' { - if tt == StartTagToken { - depth++ - } else { - depth-- - } - } - } - } - -Parsing is done by calling Parse with an io.Reader, which returns the root of -the parse tree (the document element) as a *Node. It is the caller's -responsibility to ensure that the Reader provides UTF-8 encoded HTML. For -example, to process each anchor node in depth-first order: - - doc, err := html.Parse(r) - if err != nil { - // ... - } - var f func(*html.Node) - f = func(n *html.Node) { - if n.Type == html.ElementNode && n.Data == "a" { - // Do something with n... - } - for c := n.FirstChild; c != nil; c = c.NextSibling { - f(c) - } - } - f(doc) - -The relevant specifications include: -https://html.spec.whatwg.org/multipage/syntax.html and -https://html.spec.whatwg.org/multipage/syntax.html#tokenization -*/ -package html // import "golang.org/x/net/html" - -// The tokenization algorithm implemented by this package is not a line-by-line -// transliteration of the relatively verbose state-machine in the WHATWG -// specification. A more direct approach is used instead, where the program -// counter implies the state, such as whether it is tokenizing a tag or a text -// node. Specification compliance is verified by checking expected and actual -// outputs over a test suite rather than aiming for algorithmic fidelity. - -// TODO(nigeltao): Does a DOM API belong in this package or a separate one? -// TODO(nigeltao): How does parsing interact with a JavaScript engine? diff --git a/vendor/golang.org/x/net/html/doctype.go b/vendor/golang.org/x/net/html/doctype.go deleted file mode 100644 index c484e5a9..00000000 --- a/vendor/golang.org/x/net/html/doctype.go +++ /dev/null @@ -1,156 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package html - -import ( - "strings" -) - -// parseDoctype parses the data from a DoctypeToken into a name, -// public identifier, and system identifier. It returns a Node whose Type -// is DoctypeNode, whose Data is the name, and which has attributes -// named "system" and "public" for the two identifiers if they were present. -// quirks is whether the document should be parsed in "quirks mode". -func parseDoctype(s string) (n *Node, quirks bool) { - n = &Node{Type: DoctypeNode} - - // Find the name. - space := strings.IndexAny(s, whitespace) - if space == -1 { - space = len(s) - } - n.Data = s[:space] - // The comparison to "html" is case-sensitive. - if n.Data != "html" { - quirks = true - } - n.Data = strings.ToLower(n.Data) - s = strings.TrimLeft(s[space:], whitespace) - - if len(s) < 6 { - // It can't start with "PUBLIC" or "SYSTEM". - // Ignore the rest of the string. - return n, quirks || s != "" - } - - key := strings.ToLower(s[:6]) - s = s[6:] - for key == "public" || key == "system" { - s = strings.TrimLeft(s, whitespace) - if s == "" { - break - } - quote := s[0] - if quote != '"' && quote != '\'' { - break - } - s = s[1:] - q := strings.IndexRune(s, rune(quote)) - var id string - if q == -1 { - id = s - s = "" - } else { - id = s[:q] - s = s[q+1:] - } - n.Attr = append(n.Attr, Attribute{Key: key, Val: id}) - if key == "public" { - key = "system" - } else { - key = "" - } - } - - if key != "" || s != "" { - quirks = true - } else if len(n.Attr) > 0 { - if n.Attr[0].Key == "public" { - public := strings.ToLower(n.Attr[0].Val) - switch public { - case "-//w3o//dtd w3 html strict 3.0//en//", "-/w3d/dtd html 4.0 transitional/en", "html": - quirks = true - default: - for _, q := range quirkyIDs { - if strings.HasPrefix(public, q) { - quirks = true - break - } - } - } - // The following two public IDs only cause quirks mode if there is no system ID. - if len(n.Attr) == 1 && (strings.HasPrefix(public, "-//w3c//dtd html 4.01 frameset//") || - strings.HasPrefix(public, "-//w3c//dtd html 4.01 transitional//")) { - quirks = true - } - } - if lastAttr := n.Attr[len(n.Attr)-1]; lastAttr.Key == "system" && - strings.ToLower(lastAttr.Val) == "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd" { - quirks = true - } - } - - return n, quirks -} - -// quirkyIDs is a list of public doctype identifiers that cause a document -// to be interpreted in quirks mode. The identifiers should be in lower case. -var quirkyIDs = []string{ - "+//silmaril//dtd html pro v0r11 19970101//", - "-//advasoft ltd//dtd html 3.0 aswedit + extensions//", - "-//as//dtd html 3.0 aswedit + extensions//", - "-//ietf//dtd html 2.0 level 1//", - "-//ietf//dtd html 2.0 level 2//", - "-//ietf//dtd html 2.0 strict level 1//", - "-//ietf//dtd html 2.0 strict level 2//", - "-//ietf//dtd html 2.0 strict//", - "-//ietf//dtd html 2.0//", - "-//ietf//dtd html 2.1e//", - "-//ietf//dtd html 3.0//", - "-//ietf//dtd html 3.2 final//", - "-//ietf//dtd html 3.2//", - "-//ietf//dtd html 3//", - "-//ietf//dtd html level 0//", - "-//ietf//dtd html level 1//", - "-//ietf//dtd html level 2//", - "-//ietf//dtd html level 3//", - "-//ietf//dtd html strict level 0//", - "-//ietf//dtd html strict level 1//", - "-//ietf//dtd html strict level 2//", - "-//ietf//dtd html strict level 3//", - "-//ietf//dtd html strict//", - "-//ietf//dtd html//", - "-//metrius//dtd metrius presentational//", - "-//microsoft//dtd internet explorer 2.0 html strict//", - "-//microsoft//dtd internet explorer 2.0 html//", - "-//microsoft//dtd internet explorer 2.0 tables//", - "-//microsoft//dtd internet explorer 3.0 html strict//", - "-//microsoft//dtd internet explorer 3.0 html//", - "-//microsoft//dtd internet explorer 3.0 tables//", - "-//netscape comm. corp.//dtd html//", - "-//netscape comm. corp.//dtd strict html//", - "-//o'reilly and associates//dtd html 2.0//", - "-//o'reilly and associates//dtd html extended 1.0//", - "-//o'reilly and associates//dtd html extended relaxed 1.0//", - "-//softquad software//dtd hotmetal pro 6.0::19990601::extensions to html 4.0//", - "-//softquad//dtd hotmetal pro 4.0::19971010::extensions to html 4.0//", - "-//spyglass//dtd html 2.0 extended//", - "-//sq//dtd html 2.0 hotmetal + extensions//", - "-//sun microsystems corp.//dtd hotjava html//", - "-//sun microsystems corp.//dtd hotjava strict html//", - "-//w3c//dtd html 3 1995-03-24//", - "-//w3c//dtd html 3.2 draft//", - "-//w3c//dtd html 3.2 final//", - "-//w3c//dtd html 3.2//", - "-//w3c//dtd html 3.2s draft//", - "-//w3c//dtd html 4.0 frameset//", - "-//w3c//dtd html 4.0 transitional//", - "-//w3c//dtd html experimental 19960712//", - "-//w3c//dtd html experimental 970421//", - "-//w3c//dtd w3 html//", - "-//w3o//dtd w3 html 3.0//", - "-//webtechs//dtd mozilla html 2.0//", - "-//webtechs//dtd mozilla html//", -} diff --git a/vendor/golang.org/x/net/html/entity.go b/vendor/golang.org/x/net/html/entity.go deleted file mode 100644 index a50c04c6..00000000 --- a/vendor/golang.org/x/net/html/entity.go +++ /dev/null @@ -1,2253 +0,0 @@ -// Copyright 2010 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package html - -// All entities that do not end with ';' are 6 or fewer bytes long. -const longestEntityWithoutSemicolon = 6 - -// entity is a map from HTML entity names to their values. The semicolon matters: -// https://html.spec.whatwg.org/multipage/syntax.html#named-character-references -// lists both "amp" and "amp;" as two separate entries. -// -// Note that the HTML5 list is larger than the HTML4 list at -// http://www.w3.org/TR/html4/sgml/entities.html -var entity = map[string]rune{ - "AElig;": '\U000000C6', - "AMP;": '\U00000026', - "Aacute;": '\U000000C1', - "Abreve;": '\U00000102', - "Acirc;": '\U000000C2', - "Acy;": '\U00000410', - "Afr;": '\U0001D504', - "Agrave;": '\U000000C0', - "Alpha;": '\U00000391', - "Amacr;": '\U00000100', - "And;": '\U00002A53', - "Aogon;": '\U00000104', - "Aopf;": '\U0001D538', - "ApplyFunction;": '\U00002061', - "Aring;": '\U000000C5', - "Ascr;": '\U0001D49C', - "Assign;": '\U00002254', - "Atilde;": '\U000000C3', - "Auml;": '\U000000C4', - "Backslash;": '\U00002216', - "Barv;": '\U00002AE7', - "Barwed;": '\U00002306', - "Bcy;": '\U00000411', - "Because;": '\U00002235', - "Bernoullis;": '\U0000212C', - "Beta;": '\U00000392', - "Bfr;": '\U0001D505', - "Bopf;": '\U0001D539', - "Breve;": '\U000002D8', - "Bscr;": '\U0000212C', - "Bumpeq;": '\U0000224E', - "CHcy;": '\U00000427', - "COPY;": '\U000000A9', - "Cacute;": '\U00000106', - "Cap;": '\U000022D2', - "CapitalDifferentialD;": '\U00002145', - "Cayleys;": '\U0000212D', - "Ccaron;": '\U0000010C', - "Ccedil;": '\U000000C7', - "Ccirc;": '\U00000108', - "Cconint;": '\U00002230', - "Cdot;": '\U0000010A', - "Cedilla;": '\U000000B8', - "CenterDot;": '\U000000B7', - "Cfr;": '\U0000212D', - "Chi;": '\U000003A7', - "CircleDot;": '\U00002299', - "CircleMinus;": '\U00002296', - "CirclePlus;": '\U00002295', - "CircleTimes;": '\U00002297', - "ClockwiseContourIntegral;": '\U00002232', - "CloseCurlyDoubleQuote;": '\U0000201D', - "CloseCurlyQuote;": '\U00002019', - "Colon;": '\U00002237', - "Colone;": '\U00002A74', - "Congruent;": '\U00002261', - "Conint;": '\U0000222F', - "ContourIntegral;": '\U0000222E', - "Copf;": '\U00002102', - "Coproduct;": '\U00002210', - "CounterClockwiseContourIntegral;": '\U00002233', - "Cross;": '\U00002A2F', - "Cscr;": '\U0001D49E', - "Cup;": '\U000022D3', - "CupCap;": '\U0000224D', - "DD;": '\U00002145', - "DDotrahd;": '\U00002911', - "DJcy;": '\U00000402', - "DScy;": '\U00000405', - "DZcy;": '\U0000040F', - "Dagger;": '\U00002021', - "Darr;": '\U000021A1', - "Dashv;": '\U00002AE4', - "Dcaron;": '\U0000010E', - "Dcy;": '\U00000414', - "Del;": '\U00002207', - "Delta;": '\U00000394', - "Dfr;": '\U0001D507', - "DiacriticalAcute;": '\U000000B4', - "DiacriticalDot;": '\U000002D9', - "DiacriticalDoubleAcute;": '\U000002DD', - "DiacriticalGrave;": '\U00000060', - "DiacriticalTilde;": '\U000002DC', - "Diamond;": '\U000022C4', - "DifferentialD;": '\U00002146', - "Dopf;": '\U0001D53B', - "Dot;": '\U000000A8', - "DotDot;": '\U000020DC', - "DotEqual;": '\U00002250', - "DoubleContourIntegral;": '\U0000222F', - "DoubleDot;": '\U000000A8', - "DoubleDownArrow;": '\U000021D3', - "DoubleLeftArrow;": '\U000021D0', - "DoubleLeftRightArrow;": '\U000021D4', - "DoubleLeftTee;": '\U00002AE4', - "DoubleLongLeftArrow;": '\U000027F8', - "DoubleLongLeftRightArrow;": '\U000027FA', - "DoubleLongRightArrow;": '\U000027F9', - "DoubleRightArrow;": '\U000021D2', - "DoubleRightTee;": '\U000022A8', - "DoubleUpArrow;": '\U000021D1', - "DoubleUpDownArrow;": '\U000021D5', - "DoubleVerticalBar;": '\U00002225', - "DownArrow;": '\U00002193', - "DownArrowBar;": '\U00002913', - "DownArrowUpArrow;": '\U000021F5', - "DownBreve;": '\U00000311', - "DownLeftRightVector;": '\U00002950', - "DownLeftTeeVector;": '\U0000295E', - "DownLeftVector;": '\U000021BD', - "DownLeftVectorBar;": '\U00002956', - "DownRightTeeVector;": '\U0000295F', - "DownRightVector;": '\U000021C1', - "DownRightVectorBar;": '\U00002957', - "DownTee;": '\U000022A4', - "DownTeeArrow;": '\U000021A7', - "Downarrow;": '\U000021D3', - "Dscr;": '\U0001D49F', - "Dstrok;": '\U00000110', - "ENG;": '\U0000014A', - "ETH;": '\U000000D0', - "Eacute;": '\U000000C9', - "Ecaron;": '\U0000011A', - "Ecirc;": '\U000000CA', - "Ecy;": '\U0000042D', - "Edot;": '\U00000116', - "Efr;": '\U0001D508', - "Egrave;": '\U000000C8', - "Element;": '\U00002208', - "Emacr;": '\U00000112', - "EmptySmallSquare;": '\U000025FB', - "EmptyVerySmallSquare;": '\U000025AB', - "Eogon;": '\U00000118', - "Eopf;": '\U0001D53C', - "Epsilon;": '\U00000395', - "Equal;": '\U00002A75', - "EqualTilde;": '\U00002242', - "Equilibrium;": '\U000021CC', - "Escr;": '\U00002130', - "Esim;": '\U00002A73', - "Eta;": '\U00000397', - "Euml;": '\U000000CB', - "Exists;": '\U00002203', - "ExponentialE;": '\U00002147', - "Fcy;": '\U00000424', - "Ffr;": '\U0001D509', - "FilledSmallSquare;": '\U000025FC', - "FilledVerySmallSquare;": '\U000025AA', - "Fopf;": '\U0001D53D', - "ForAll;": '\U00002200', - "Fouriertrf;": '\U00002131', - "Fscr;": '\U00002131', - "GJcy;": '\U00000403', - "GT;": '\U0000003E', - "Gamma;": '\U00000393', - "Gammad;": '\U000003DC', - "Gbreve;": '\U0000011E', - "Gcedil;": '\U00000122', - "Gcirc;": '\U0000011C', - "Gcy;": '\U00000413', - "Gdot;": '\U00000120', - "Gfr;": '\U0001D50A', - "Gg;": '\U000022D9', - "Gopf;": '\U0001D53E', - "GreaterEqual;": '\U00002265', - "GreaterEqualLess;": '\U000022DB', - "GreaterFullEqual;": '\U00002267', - "GreaterGreater;": '\U00002AA2', - "GreaterLess;": '\U00002277', - "GreaterSlantEqual;": '\U00002A7E', - "GreaterTilde;": '\U00002273', - "Gscr;": '\U0001D4A2', - "Gt;": '\U0000226B', - "HARDcy;": '\U0000042A', - "Hacek;": '\U000002C7', - "Hat;": '\U0000005E', - "Hcirc;": '\U00000124', - "Hfr;": '\U0000210C', - "HilbertSpace;": '\U0000210B', - "Hopf;": '\U0000210D', - "HorizontalLine;": '\U00002500', - "Hscr;": '\U0000210B', - "Hstrok;": '\U00000126', - "HumpDownHump;": '\U0000224E', - "HumpEqual;": '\U0000224F', - "IEcy;": '\U00000415', - "IJlig;": '\U00000132', - "IOcy;": '\U00000401', - "Iacute;": '\U000000CD', - "Icirc;": '\U000000CE', - "Icy;": '\U00000418', - "Idot;": '\U00000130', - "Ifr;": '\U00002111', - "Igrave;": '\U000000CC', - "Im;": '\U00002111', - "Imacr;": '\U0000012A', - "ImaginaryI;": '\U00002148', - "Implies;": '\U000021D2', - "Int;": '\U0000222C', - "Integral;": '\U0000222B', - "Intersection;": '\U000022C2', - "InvisibleComma;": '\U00002063', - "InvisibleTimes;": '\U00002062', - "Iogon;": '\U0000012E', - "Iopf;": '\U0001D540', - "Iota;": '\U00000399', - "Iscr;": '\U00002110', - "Itilde;": '\U00000128', - "Iukcy;": '\U00000406', - "Iuml;": '\U000000CF', - "Jcirc;": '\U00000134', - "Jcy;": '\U00000419', - "Jfr;": '\U0001D50D', - "Jopf;": '\U0001D541', - "Jscr;": '\U0001D4A5', - "Jsercy;": '\U00000408', - "Jukcy;": '\U00000404', - "KHcy;": '\U00000425', - "KJcy;": '\U0000040C', - "Kappa;": '\U0000039A', - "Kcedil;": '\U00000136', - "Kcy;": '\U0000041A', - "Kfr;": '\U0001D50E', - "Kopf;": '\U0001D542', - "Kscr;": '\U0001D4A6', - "LJcy;": '\U00000409', - "LT;": '\U0000003C', - "Lacute;": '\U00000139', - "Lambda;": '\U0000039B', - "Lang;": '\U000027EA', - "Laplacetrf;": '\U00002112', - "Larr;": '\U0000219E', - "Lcaron;": '\U0000013D', - "Lcedil;": '\U0000013B', - "Lcy;": '\U0000041B', - "LeftAngleBracket;": '\U000027E8', - "LeftArrow;": '\U00002190', - "LeftArrowBar;": '\U000021E4', - "LeftArrowRightArrow;": '\U000021C6', - "LeftCeiling;": '\U00002308', - "LeftDoubleBracket;": '\U000027E6', - "LeftDownTeeVector;": '\U00002961', - "LeftDownVector;": '\U000021C3', - "LeftDownVectorBar;": '\U00002959', - "LeftFloor;": '\U0000230A', - "LeftRightArrow;": '\U00002194', - "LeftRightVector;": '\U0000294E', - "LeftTee;": '\U000022A3', - "LeftTeeArrow;": '\U000021A4', - "LeftTeeVector;": '\U0000295A', - "LeftTriangle;": '\U000022B2', - "LeftTriangleBar;": '\U000029CF', - "LeftTriangleEqual;": '\U000022B4', - "LeftUpDownVector;": '\U00002951', - "LeftUpTeeVector;": '\U00002960', - "LeftUpVector;": '\U000021BF', - "LeftUpVectorBar;": '\U00002958', - "LeftVector;": '\U000021BC', - "LeftVectorBar;": '\U00002952', - "Leftarrow;": '\U000021D0', - "Leftrightarrow;": '\U000021D4', - "LessEqualGreater;": '\U000022DA', - "LessFullEqual;": '\U00002266', - "LessGreater;": '\U00002276', - "LessLess;": '\U00002AA1', - "LessSlantEqual;": '\U00002A7D', - "LessTilde;": '\U00002272', - "Lfr;": '\U0001D50F', - "Ll;": '\U000022D8', - "Lleftarrow;": '\U000021DA', - "Lmidot;": '\U0000013F', - "LongLeftArrow;": '\U000027F5', - "LongLeftRightArrow;": '\U000027F7', - "LongRightArrow;": '\U000027F6', - "Longleftarrow;": '\U000027F8', - "Longleftrightarrow;": '\U000027FA', - "Longrightarrow;": '\U000027F9', - "Lopf;": '\U0001D543', - "LowerLeftArrow;": '\U00002199', - "LowerRightArrow;": '\U00002198', - "Lscr;": '\U00002112', - "Lsh;": '\U000021B0', - "Lstrok;": '\U00000141', - "Lt;": '\U0000226A', - "Map;": '\U00002905', - "Mcy;": '\U0000041C', - "MediumSpace;": '\U0000205F', - "Mellintrf;": '\U00002133', - "Mfr;": '\U0001D510', - "MinusPlus;": '\U00002213', - "Mopf;": '\U0001D544', - "Mscr;": '\U00002133', - "Mu;": '\U0000039C', - "NJcy;": '\U0000040A', - "Nacute;": '\U00000143', - "Ncaron;": '\U00000147', - "Ncedil;": '\U00000145', - "Ncy;": '\U0000041D', - "NegativeMediumSpace;": '\U0000200B', - "NegativeThickSpace;": '\U0000200B', - "NegativeThinSpace;": '\U0000200B', - "NegativeVeryThinSpace;": '\U0000200B', - "NestedGreaterGreater;": '\U0000226B', - "NestedLessLess;": '\U0000226A', - "NewLine;": '\U0000000A', - "Nfr;": '\U0001D511', - "NoBreak;": '\U00002060', - "NonBreakingSpace;": '\U000000A0', - "Nopf;": '\U00002115', - "Not;": '\U00002AEC', - "NotCongruent;": '\U00002262', - "NotCupCap;": '\U0000226D', - "NotDoubleVerticalBar;": '\U00002226', - "NotElement;": '\U00002209', - "NotEqual;": '\U00002260', - "NotExists;": '\U00002204', - "NotGreater;": '\U0000226F', - "NotGreaterEqual;": '\U00002271', - "NotGreaterLess;": '\U00002279', - "NotGreaterTilde;": '\U00002275', - "NotLeftTriangle;": '\U000022EA', - "NotLeftTriangleEqual;": '\U000022EC', - "NotLess;": '\U0000226E', - "NotLessEqual;": '\U00002270', - "NotLessGreater;": '\U00002278', - "NotLessTilde;": '\U00002274', - "NotPrecedes;": '\U00002280', - "NotPrecedesSlantEqual;": '\U000022E0', - "NotReverseElement;": '\U0000220C', - "NotRightTriangle;": '\U000022EB', - "NotRightTriangleEqual;": '\U000022ED', - "NotSquareSubsetEqual;": '\U000022E2', - "NotSquareSupersetEqual;": '\U000022E3', - "NotSubsetEqual;": '\U00002288', - "NotSucceeds;": '\U00002281', - "NotSucceedsSlantEqual;": '\U000022E1', - "NotSupersetEqual;": '\U00002289', - "NotTilde;": '\U00002241', - "NotTildeEqual;": '\U00002244', - "NotTildeFullEqual;": '\U00002247', - "NotTildeTilde;": '\U00002249', - "NotVerticalBar;": '\U00002224', - "Nscr;": '\U0001D4A9', - "Ntilde;": '\U000000D1', - "Nu;": '\U0000039D', - "OElig;": '\U00000152', - "Oacute;": '\U000000D3', - "Ocirc;": '\U000000D4', - "Ocy;": '\U0000041E', - "Odblac;": '\U00000150', - "Ofr;": '\U0001D512', - "Ograve;": '\U000000D2', - "Omacr;": '\U0000014C', - "Omega;": '\U000003A9', - "Omicron;": '\U0000039F', - "Oopf;": '\U0001D546', - "OpenCurlyDoubleQuote;": '\U0000201C', - "OpenCurlyQuote;": '\U00002018', - "Or;": '\U00002A54', - "Oscr;": '\U0001D4AA', - "Oslash;": '\U000000D8', - "Otilde;": '\U000000D5', - "Otimes;": '\U00002A37', - "Ouml;": '\U000000D6', - "OverBar;": '\U0000203E', - "OverBrace;": '\U000023DE', - "OverBracket;": '\U000023B4', - "OverParenthesis;": '\U000023DC', - "PartialD;": '\U00002202', - "Pcy;": '\U0000041F', - "Pfr;": '\U0001D513', - "Phi;": '\U000003A6', - "Pi;": '\U000003A0', - "PlusMinus;": '\U000000B1', - "Poincareplane;": '\U0000210C', - "Popf;": '\U00002119', - "Pr;": '\U00002ABB', - "Precedes;": '\U0000227A', - "PrecedesEqual;": '\U00002AAF', - "PrecedesSlantEqual;": '\U0000227C', - "PrecedesTilde;": '\U0000227E', - "Prime;": '\U00002033', - "Product;": '\U0000220F', - "Proportion;": '\U00002237', - "Proportional;": '\U0000221D', - "Pscr;": '\U0001D4AB', - "Psi;": '\U000003A8', - "QUOT;": '\U00000022', - "Qfr;": '\U0001D514', - "Qopf;": '\U0000211A', - "Qscr;": '\U0001D4AC', - "RBarr;": '\U00002910', - "REG;": '\U000000AE', - "Racute;": '\U00000154', - "Rang;": '\U000027EB', - "Rarr;": '\U000021A0', - "Rarrtl;": '\U00002916', - "Rcaron;": '\U00000158', - "Rcedil;": '\U00000156', - "Rcy;": '\U00000420', - "Re;": '\U0000211C', - "ReverseElement;": '\U0000220B', - "ReverseEquilibrium;": '\U000021CB', - "ReverseUpEquilibrium;": '\U0000296F', - "Rfr;": '\U0000211C', - "Rho;": '\U000003A1', - "RightAngleBracket;": '\U000027E9', - "RightArrow;": '\U00002192', - "RightArrowBar;": '\U000021E5', - "RightArrowLeftArrow;": '\U000021C4', - "RightCeiling;": '\U00002309', - "RightDoubleBracket;": '\U000027E7', - "RightDownTeeVector;": '\U0000295D', - "RightDownVector;": '\U000021C2', - "RightDownVectorBar;": '\U00002955', - "RightFloor;": '\U0000230B', - "RightTee;": '\U000022A2', - "RightTeeArrow;": '\U000021A6', - "RightTeeVector;": '\U0000295B', - "RightTriangle;": '\U000022B3', - "RightTriangleBar;": '\U000029D0', - "RightTriangleEqual;": '\U000022B5', - "RightUpDownVector;": '\U0000294F', - "RightUpTeeVector;": '\U0000295C', - "RightUpVector;": '\U000021BE', - "RightUpVectorBar;": '\U00002954', - "RightVector;": '\U000021C0', - "RightVectorBar;": '\U00002953', - "Rightarrow;": '\U000021D2', - "Ropf;": '\U0000211D', - "RoundImplies;": '\U00002970', - "Rrightarrow;": '\U000021DB', - "Rscr;": '\U0000211B', - "Rsh;": '\U000021B1', - "RuleDelayed;": '\U000029F4', - "SHCHcy;": '\U00000429', - "SHcy;": '\U00000428', - "SOFTcy;": '\U0000042C', - "Sacute;": '\U0000015A', - "Sc;": '\U00002ABC', - "Scaron;": '\U00000160', - "Scedil;": '\U0000015E', - "Scirc;": '\U0000015C', - "Scy;": '\U00000421', - "Sfr;": '\U0001D516', - "ShortDownArrow;": '\U00002193', - "ShortLeftArrow;": '\U00002190', - "ShortRightArrow;": '\U00002192', - "ShortUpArrow;": '\U00002191', - "Sigma;": '\U000003A3', - "SmallCircle;": '\U00002218', - "Sopf;": '\U0001D54A', - "Sqrt;": '\U0000221A', - "Square;": '\U000025A1', - "SquareIntersection;": '\U00002293', - "SquareSubset;": '\U0000228F', - "SquareSubsetEqual;": '\U00002291', - "SquareSuperset;": '\U00002290', - "SquareSupersetEqual;": '\U00002292', - "SquareUnion;": '\U00002294', - "Sscr;": '\U0001D4AE', - "Star;": '\U000022C6', - "Sub;": '\U000022D0', - "Subset;": '\U000022D0', - "SubsetEqual;": '\U00002286', - "Succeeds;": '\U0000227B', - "SucceedsEqual;": '\U00002AB0', - "SucceedsSlantEqual;": '\U0000227D', - "SucceedsTilde;": '\U0000227F', - "SuchThat;": '\U0000220B', - "Sum;": '\U00002211', - "Sup;": '\U000022D1', - "Superset;": '\U00002283', - "SupersetEqual;": '\U00002287', - "Supset;": '\U000022D1', - "THORN;": '\U000000DE', - "TRADE;": '\U00002122', - "TSHcy;": '\U0000040B', - "TScy;": '\U00000426', - "Tab;": '\U00000009', - "Tau;": '\U000003A4', - "Tcaron;": '\U00000164', - "Tcedil;": '\U00000162', - "Tcy;": '\U00000422', - "Tfr;": '\U0001D517', - "Therefore;": '\U00002234', - "Theta;": '\U00000398', - "ThinSpace;": '\U00002009', - "Tilde;": '\U0000223C', - "TildeEqual;": '\U00002243', - "TildeFullEqual;": '\U00002245', - "TildeTilde;": '\U00002248', - "Topf;": '\U0001D54B', - "TripleDot;": '\U000020DB', - "Tscr;": '\U0001D4AF', - "Tstrok;": '\U00000166', - "Uacute;": '\U000000DA', - "Uarr;": '\U0000219F', - "Uarrocir;": '\U00002949', - "Ubrcy;": '\U0000040E', - "Ubreve;": '\U0000016C', - "Ucirc;": '\U000000DB', - "Ucy;": '\U00000423', - "Udblac;": '\U00000170', - "Ufr;": '\U0001D518', - "Ugrave;": '\U000000D9', - "Umacr;": '\U0000016A', - "UnderBar;": '\U0000005F', - "UnderBrace;": '\U000023DF', - "UnderBracket;": '\U000023B5', - "UnderParenthesis;": '\U000023DD', - "Union;": '\U000022C3', - "UnionPlus;": '\U0000228E', - "Uogon;": '\U00000172', - "Uopf;": '\U0001D54C', - "UpArrow;": '\U00002191', - "UpArrowBar;": '\U00002912', - "UpArrowDownArrow;": '\U000021C5', - "UpDownArrow;": '\U00002195', - "UpEquilibrium;": '\U0000296E', - "UpTee;": '\U000022A5', - "UpTeeArrow;": '\U000021A5', - "Uparrow;": '\U000021D1', - "Updownarrow;": '\U000021D5', - "UpperLeftArrow;": '\U00002196', - "UpperRightArrow;": '\U00002197', - "Upsi;": '\U000003D2', - "Upsilon;": '\U000003A5', - "Uring;": '\U0000016E', - "Uscr;": '\U0001D4B0', - "Utilde;": '\U00000168', - "Uuml;": '\U000000DC', - "VDash;": '\U000022AB', - "Vbar;": '\U00002AEB', - "Vcy;": '\U00000412', - "Vdash;": '\U000022A9', - "Vdashl;": '\U00002AE6', - "Vee;": '\U000022C1', - "Verbar;": '\U00002016', - "Vert;": '\U00002016', - "VerticalBar;": '\U00002223', - "VerticalLine;": '\U0000007C', - "VerticalSeparator;": '\U00002758', - "VerticalTilde;": '\U00002240', - "VeryThinSpace;": '\U0000200A', - "Vfr;": '\U0001D519', - "Vopf;": '\U0001D54D', - "Vscr;": '\U0001D4B1', - "Vvdash;": '\U000022AA', - "Wcirc;": '\U00000174', - "Wedge;": '\U000022C0', - "Wfr;": '\U0001D51A', - "Wopf;": '\U0001D54E', - "Wscr;": '\U0001D4B2', - "Xfr;": '\U0001D51B', - "Xi;": '\U0000039E', - "Xopf;": '\U0001D54F', - "Xscr;": '\U0001D4B3', - "YAcy;": '\U0000042F', - "YIcy;": '\U00000407', - "YUcy;": '\U0000042E', - "Yacute;": '\U000000DD', - "Ycirc;": '\U00000176', - "Ycy;": '\U0000042B', - "Yfr;": '\U0001D51C', - "Yopf;": '\U0001D550', - "Yscr;": '\U0001D4B4', - "Yuml;": '\U00000178', - "ZHcy;": '\U00000416', - "Zacute;": '\U00000179', - "Zcaron;": '\U0000017D', - "Zcy;": '\U00000417', - "Zdot;": '\U0000017B', - "ZeroWidthSpace;": '\U0000200B', - "Zeta;": '\U00000396', - "Zfr;": '\U00002128', - "Zopf;": '\U00002124', - "Zscr;": '\U0001D4B5', - "aacute;": '\U000000E1', - "abreve;": '\U00000103', - "ac;": '\U0000223E', - "acd;": '\U0000223F', - "acirc;": '\U000000E2', - "acute;": '\U000000B4', - "acy;": '\U00000430', - "aelig;": '\U000000E6', - "af;": '\U00002061', - "afr;": '\U0001D51E', - "agrave;": '\U000000E0', - "alefsym;": '\U00002135', - "aleph;": '\U00002135', - "alpha;": '\U000003B1', - "amacr;": '\U00000101', - "amalg;": '\U00002A3F', - "amp;": '\U00000026', - "and;": '\U00002227', - "andand;": '\U00002A55', - "andd;": '\U00002A5C', - "andslope;": '\U00002A58', - "andv;": '\U00002A5A', - "ang;": '\U00002220', - "ange;": '\U000029A4', - "angle;": '\U00002220', - "angmsd;": '\U00002221', - "angmsdaa;": '\U000029A8', - "angmsdab;": '\U000029A9', - "angmsdac;": '\U000029AA', - "angmsdad;": '\U000029AB', - "angmsdae;": '\U000029AC', - "angmsdaf;": '\U000029AD', - "angmsdag;": '\U000029AE', - "angmsdah;": '\U000029AF', - "angrt;": '\U0000221F', - "angrtvb;": '\U000022BE', - "angrtvbd;": '\U0000299D', - "angsph;": '\U00002222', - "angst;": '\U000000C5', - "angzarr;": '\U0000237C', - "aogon;": '\U00000105', - "aopf;": '\U0001D552', - "ap;": '\U00002248', - "apE;": '\U00002A70', - "apacir;": '\U00002A6F', - "ape;": '\U0000224A', - "apid;": '\U0000224B', - "apos;": '\U00000027', - "approx;": '\U00002248', - "approxeq;": '\U0000224A', - "aring;": '\U000000E5', - "ascr;": '\U0001D4B6', - "ast;": '\U0000002A', - "asymp;": '\U00002248', - "asympeq;": '\U0000224D', - "atilde;": '\U000000E3', - "auml;": '\U000000E4', - "awconint;": '\U00002233', - "awint;": '\U00002A11', - "bNot;": '\U00002AED', - "backcong;": '\U0000224C', - "backepsilon;": '\U000003F6', - "backprime;": '\U00002035', - "backsim;": '\U0000223D', - "backsimeq;": '\U000022CD', - "barvee;": '\U000022BD', - "barwed;": '\U00002305', - "barwedge;": '\U00002305', - "bbrk;": '\U000023B5', - "bbrktbrk;": '\U000023B6', - "bcong;": '\U0000224C', - "bcy;": '\U00000431', - "bdquo;": '\U0000201E', - "becaus;": '\U00002235', - "because;": '\U00002235', - "bemptyv;": '\U000029B0', - "bepsi;": '\U000003F6', - "bernou;": '\U0000212C', - "beta;": '\U000003B2', - "beth;": '\U00002136', - "between;": '\U0000226C', - "bfr;": '\U0001D51F', - "bigcap;": '\U000022C2', - "bigcirc;": '\U000025EF', - "bigcup;": '\U000022C3', - "bigodot;": '\U00002A00', - "bigoplus;": '\U00002A01', - "bigotimes;": '\U00002A02', - "bigsqcup;": '\U00002A06', - "bigstar;": '\U00002605', - "bigtriangledown;": '\U000025BD', - "bigtriangleup;": '\U000025B3', - "biguplus;": '\U00002A04', - "bigvee;": '\U000022C1', - "bigwedge;": '\U000022C0', - "bkarow;": '\U0000290D', - "blacklozenge;": '\U000029EB', - "blacksquare;": '\U000025AA', - "blacktriangle;": '\U000025B4', - "blacktriangledown;": '\U000025BE', - "blacktriangleleft;": '\U000025C2', - "blacktriangleright;": '\U000025B8', - "blank;": '\U00002423', - "blk12;": '\U00002592', - "blk14;": '\U00002591', - "blk34;": '\U00002593', - "block;": '\U00002588', - "bnot;": '\U00002310', - "bopf;": '\U0001D553', - "bot;": '\U000022A5', - "bottom;": '\U000022A5', - "bowtie;": '\U000022C8', - "boxDL;": '\U00002557', - "boxDR;": '\U00002554', - "boxDl;": '\U00002556', - "boxDr;": '\U00002553', - "boxH;": '\U00002550', - "boxHD;": '\U00002566', - "boxHU;": '\U00002569', - "boxHd;": '\U00002564', - "boxHu;": '\U00002567', - "boxUL;": '\U0000255D', - "boxUR;": '\U0000255A', - "boxUl;": '\U0000255C', - "boxUr;": '\U00002559', - "boxV;": '\U00002551', - "boxVH;": '\U0000256C', - "boxVL;": '\U00002563', - "boxVR;": '\U00002560', - "boxVh;": '\U0000256B', - "boxVl;": '\U00002562', - "boxVr;": '\U0000255F', - "boxbox;": '\U000029C9', - "boxdL;": '\U00002555', - "boxdR;": '\U00002552', - "boxdl;": '\U00002510', - "boxdr;": '\U0000250C', - "boxh;": '\U00002500', - "boxhD;": '\U00002565', - "boxhU;": '\U00002568', - "boxhd;": '\U0000252C', - "boxhu;": '\U00002534', - "boxminus;": '\U0000229F', - "boxplus;": '\U0000229E', - "boxtimes;": '\U000022A0', - "boxuL;": '\U0000255B', - "boxuR;": '\U00002558', - "boxul;": '\U00002518', - "boxur;": '\U00002514', - "boxv;": '\U00002502', - "boxvH;": '\U0000256A', - "boxvL;": '\U00002561', - "boxvR;": '\U0000255E', - "boxvh;": '\U0000253C', - "boxvl;": '\U00002524', - "boxvr;": '\U0000251C', - "bprime;": '\U00002035', - "breve;": '\U000002D8', - "brvbar;": '\U000000A6', - "bscr;": '\U0001D4B7', - "bsemi;": '\U0000204F', - "bsim;": '\U0000223D', - "bsime;": '\U000022CD', - "bsol;": '\U0000005C', - "bsolb;": '\U000029C5', - "bsolhsub;": '\U000027C8', - "bull;": '\U00002022', - "bullet;": '\U00002022', - "bump;": '\U0000224E', - "bumpE;": '\U00002AAE', - "bumpe;": '\U0000224F', - "bumpeq;": '\U0000224F', - "cacute;": '\U00000107', - "cap;": '\U00002229', - "capand;": '\U00002A44', - "capbrcup;": '\U00002A49', - "capcap;": '\U00002A4B', - "capcup;": '\U00002A47', - "capdot;": '\U00002A40', - "caret;": '\U00002041', - "caron;": '\U000002C7', - "ccaps;": '\U00002A4D', - "ccaron;": '\U0000010D', - "ccedil;": '\U000000E7', - "ccirc;": '\U00000109', - "ccups;": '\U00002A4C', - "ccupssm;": '\U00002A50', - "cdot;": '\U0000010B', - "cedil;": '\U000000B8', - "cemptyv;": '\U000029B2', - "cent;": '\U000000A2', - "centerdot;": '\U000000B7', - "cfr;": '\U0001D520', - "chcy;": '\U00000447', - "check;": '\U00002713', - "checkmark;": '\U00002713', - "chi;": '\U000003C7', - "cir;": '\U000025CB', - "cirE;": '\U000029C3', - "circ;": '\U000002C6', - "circeq;": '\U00002257', - "circlearrowleft;": '\U000021BA', - "circlearrowright;": '\U000021BB', - "circledR;": '\U000000AE', - "circledS;": '\U000024C8', - "circledast;": '\U0000229B', - "circledcirc;": '\U0000229A', - "circleddash;": '\U0000229D', - "cire;": '\U00002257', - "cirfnint;": '\U00002A10', - "cirmid;": '\U00002AEF', - "cirscir;": '\U000029C2', - "clubs;": '\U00002663', - "clubsuit;": '\U00002663', - "colon;": '\U0000003A', - "colone;": '\U00002254', - "coloneq;": '\U00002254', - "comma;": '\U0000002C', - "commat;": '\U00000040', - "comp;": '\U00002201', - "compfn;": '\U00002218', - "complement;": '\U00002201', - "complexes;": '\U00002102', - "cong;": '\U00002245', - "congdot;": '\U00002A6D', - "conint;": '\U0000222E', - "copf;": '\U0001D554', - "coprod;": '\U00002210', - "copy;": '\U000000A9', - "copysr;": '\U00002117', - "crarr;": '\U000021B5', - "cross;": '\U00002717', - "cscr;": '\U0001D4B8', - "csub;": '\U00002ACF', - "csube;": '\U00002AD1', - "csup;": '\U00002AD0', - "csupe;": '\U00002AD2', - "ctdot;": '\U000022EF', - "cudarrl;": '\U00002938', - "cudarrr;": '\U00002935', - "cuepr;": '\U000022DE', - "cuesc;": '\U000022DF', - "cularr;": '\U000021B6', - "cularrp;": '\U0000293D', - "cup;": '\U0000222A', - "cupbrcap;": '\U00002A48', - "cupcap;": '\U00002A46', - "cupcup;": '\U00002A4A', - "cupdot;": '\U0000228D', - "cupor;": '\U00002A45', - "curarr;": '\U000021B7', - "curarrm;": '\U0000293C', - "curlyeqprec;": '\U000022DE', - "curlyeqsucc;": '\U000022DF', - "curlyvee;": '\U000022CE', - "curlywedge;": '\U000022CF', - "curren;": '\U000000A4', - "curvearrowleft;": '\U000021B6', - "curvearrowright;": '\U000021B7', - "cuvee;": '\U000022CE', - "cuwed;": '\U000022CF', - "cwconint;": '\U00002232', - "cwint;": '\U00002231', - "cylcty;": '\U0000232D', - "dArr;": '\U000021D3', - "dHar;": '\U00002965', - "dagger;": '\U00002020', - "daleth;": '\U00002138', - "darr;": '\U00002193', - "dash;": '\U00002010', - "dashv;": '\U000022A3', - "dbkarow;": '\U0000290F', - "dblac;": '\U000002DD', - "dcaron;": '\U0000010F', - "dcy;": '\U00000434', - "dd;": '\U00002146', - "ddagger;": '\U00002021', - "ddarr;": '\U000021CA', - "ddotseq;": '\U00002A77', - "deg;": '\U000000B0', - "delta;": '\U000003B4', - "demptyv;": '\U000029B1', - "dfisht;": '\U0000297F', - "dfr;": '\U0001D521', - "dharl;": '\U000021C3', - "dharr;": '\U000021C2', - "diam;": '\U000022C4', - "diamond;": '\U000022C4', - "diamondsuit;": '\U00002666', - "diams;": '\U00002666', - "die;": '\U000000A8', - "digamma;": '\U000003DD', - "disin;": '\U000022F2', - "div;": '\U000000F7', - "divide;": '\U000000F7', - "divideontimes;": '\U000022C7', - "divonx;": '\U000022C7', - "djcy;": '\U00000452', - "dlcorn;": '\U0000231E', - "dlcrop;": '\U0000230D', - "dollar;": '\U00000024', - "dopf;": '\U0001D555', - "dot;": '\U000002D9', - "doteq;": '\U00002250', - "doteqdot;": '\U00002251', - "dotminus;": '\U00002238', - "dotplus;": '\U00002214', - "dotsquare;": '\U000022A1', - "doublebarwedge;": '\U00002306', - "downarrow;": '\U00002193', - "downdownarrows;": '\U000021CA', - "downharpoonleft;": '\U000021C3', - "downharpoonright;": '\U000021C2', - "drbkarow;": '\U00002910', - "drcorn;": '\U0000231F', - "drcrop;": '\U0000230C', - "dscr;": '\U0001D4B9', - "dscy;": '\U00000455', - "dsol;": '\U000029F6', - "dstrok;": '\U00000111', - "dtdot;": '\U000022F1', - "dtri;": '\U000025BF', - "dtrif;": '\U000025BE', - "duarr;": '\U000021F5', - "duhar;": '\U0000296F', - "dwangle;": '\U000029A6', - "dzcy;": '\U0000045F', - "dzigrarr;": '\U000027FF', - "eDDot;": '\U00002A77', - "eDot;": '\U00002251', - "eacute;": '\U000000E9', - "easter;": '\U00002A6E', - "ecaron;": '\U0000011B', - "ecir;": '\U00002256', - "ecirc;": '\U000000EA', - "ecolon;": '\U00002255', - "ecy;": '\U0000044D', - "edot;": '\U00000117', - "ee;": '\U00002147', - "efDot;": '\U00002252', - "efr;": '\U0001D522', - "eg;": '\U00002A9A', - "egrave;": '\U000000E8', - "egs;": '\U00002A96', - "egsdot;": '\U00002A98', - "el;": '\U00002A99', - "elinters;": '\U000023E7', - "ell;": '\U00002113', - "els;": '\U00002A95', - "elsdot;": '\U00002A97', - "emacr;": '\U00000113', - "empty;": '\U00002205', - "emptyset;": '\U00002205', - "emptyv;": '\U00002205', - "emsp;": '\U00002003', - "emsp13;": '\U00002004', - "emsp14;": '\U00002005', - "eng;": '\U0000014B', - "ensp;": '\U00002002', - "eogon;": '\U00000119', - "eopf;": '\U0001D556', - "epar;": '\U000022D5', - "eparsl;": '\U000029E3', - "eplus;": '\U00002A71', - "epsi;": '\U000003B5', - "epsilon;": '\U000003B5', - "epsiv;": '\U000003F5', - "eqcirc;": '\U00002256', - "eqcolon;": '\U00002255', - "eqsim;": '\U00002242', - "eqslantgtr;": '\U00002A96', - "eqslantless;": '\U00002A95', - "equals;": '\U0000003D', - "equest;": '\U0000225F', - "equiv;": '\U00002261', - "equivDD;": '\U00002A78', - "eqvparsl;": '\U000029E5', - "erDot;": '\U00002253', - "erarr;": '\U00002971', - "escr;": '\U0000212F', - "esdot;": '\U00002250', - "esim;": '\U00002242', - "eta;": '\U000003B7', - "eth;": '\U000000F0', - "euml;": '\U000000EB', - "euro;": '\U000020AC', - "excl;": '\U00000021', - "exist;": '\U00002203', - "expectation;": '\U00002130', - "exponentiale;": '\U00002147', - "fallingdotseq;": '\U00002252', - "fcy;": '\U00000444', - "female;": '\U00002640', - "ffilig;": '\U0000FB03', - "fflig;": '\U0000FB00', - "ffllig;": '\U0000FB04', - "ffr;": '\U0001D523', - "filig;": '\U0000FB01', - "flat;": '\U0000266D', - "fllig;": '\U0000FB02', - "fltns;": '\U000025B1', - "fnof;": '\U00000192', - "fopf;": '\U0001D557', - "forall;": '\U00002200', - "fork;": '\U000022D4', - "forkv;": '\U00002AD9', - "fpartint;": '\U00002A0D', - "frac12;": '\U000000BD', - "frac13;": '\U00002153', - "frac14;": '\U000000BC', - "frac15;": '\U00002155', - "frac16;": '\U00002159', - "frac18;": '\U0000215B', - "frac23;": '\U00002154', - "frac25;": '\U00002156', - "frac34;": '\U000000BE', - "frac35;": '\U00002157', - "frac38;": '\U0000215C', - "frac45;": '\U00002158', - "frac56;": '\U0000215A', - "frac58;": '\U0000215D', - "frac78;": '\U0000215E', - "frasl;": '\U00002044', - "frown;": '\U00002322', - "fscr;": '\U0001D4BB', - "gE;": '\U00002267', - "gEl;": '\U00002A8C', - "gacute;": '\U000001F5', - "gamma;": '\U000003B3', - "gammad;": '\U000003DD', - "gap;": '\U00002A86', - "gbreve;": '\U0000011F', - "gcirc;": '\U0000011D', - "gcy;": '\U00000433', - "gdot;": '\U00000121', - "ge;": '\U00002265', - "gel;": '\U000022DB', - "geq;": '\U00002265', - "geqq;": '\U00002267', - "geqslant;": '\U00002A7E', - "ges;": '\U00002A7E', - "gescc;": '\U00002AA9', - "gesdot;": '\U00002A80', - "gesdoto;": '\U00002A82', - "gesdotol;": '\U00002A84', - "gesles;": '\U00002A94', - "gfr;": '\U0001D524', - "gg;": '\U0000226B', - "ggg;": '\U000022D9', - "gimel;": '\U00002137', - "gjcy;": '\U00000453', - "gl;": '\U00002277', - "glE;": '\U00002A92', - "gla;": '\U00002AA5', - "glj;": '\U00002AA4', - "gnE;": '\U00002269', - "gnap;": '\U00002A8A', - "gnapprox;": '\U00002A8A', - "gne;": '\U00002A88', - "gneq;": '\U00002A88', - "gneqq;": '\U00002269', - "gnsim;": '\U000022E7', - "gopf;": '\U0001D558', - "grave;": '\U00000060', - "gscr;": '\U0000210A', - "gsim;": '\U00002273', - "gsime;": '\U00002A8E', - "gsiml;": '\U00002A90', - "gt;": '\U0000003E', - "gtcc;": '\U00002AA7', - "gtcir;": '\U00002A7A', - "gtdot;": '\U000022D7', - "gtlPar;": '\U00002995', - "gtquest;": '\U00002A7C', - "gtrapprox;": '\U00002A86', - "gtrarr;": '\U00002978', - "gtrdot;": '\U000022D7', - "gtreqless;": '\U000022DB', - "gtreqqless;": '\U00002A8C', - "gtrless;": '\U00002277', - "gtrsim;": '\U00002273', - "hArr;": '\U000021D4', - "hairsp;": '\U0000200A', - "half;": '\U000000BD', - "hamilt;": '\U0000210B', - "hardcy;": '\U0000044A', - "harr;": '\U00002194', - "harrcir;": '\U00002948', - "harrw;": '\U000021AD', - "hbar;": '\U0000210F', - "hcirc;": '\U00000125', - "hearts;": '\U00002665', - "heartsuit;": '\U00002665', - "hellip;": '\U00002026', - "hercon;": '\U000022B9', - "hfr;": '\U0001D525', - "hksearow;": '\U00002925', - "hkswarow;": '\U00002926', - "hoarr;": '\U000021FF', - "homtht;": '\U0000223B', - "hookleftarrow;": '\U000021A9', - "hookrightarrow;": '\U000021AA', - "hopf;": '\U0001D559', - "horbar;": '\U00002015', - "hscr;": '\U0001D4BD', - "hslash;": '\U0000210F', - "hstrok;": '\U00000127', - "hybull;": '\U00002043', - "hyphen;": '\U00002010', - "iacute;": '\U000000ED', - "ic;": '\U00002063', - "icirc;": '\U000000EE', - "icy;": '\U00000438', - "iecy;": '\U00000435', - "iexcl;": '\U000000A1', - "iff;": '\U000021D4', - "ifr;": '\U0001D526', - "igrave;": '\U000000EC', - "ii;": '\U00002148', - "iiiint;": '\U00002A0C', - "iiint;": '\U0000222D', - "iinfin;": '\U000029DC', - "iiota;": '\U00002129', - "ijlig;": '\U00000133', - "imacr;": '\U0000012B', - "image;": '\U00002111', - "imagline;": '\U00002110', - "imagpart;": '\U00002111', - "imath;": '\U00000131', - "imof;": '\U000022B7', - "imped;": '\U000001B5', - "in;": '\U00002208', - "incare;": '\U00002105', - "infin;": '\U0000221E', - "infintie;": '\U000029DD', - "inodot;": '\U00000131', - "int;": '\U0000222B', - "intcal;": '\U000022BA', - "integers;": '\U00002124', - "intercal;": '\U000022BA', - "intlarhk;": '\U00002A17', - "intprod;": '\U00002A3C', - "iocy;": '\U00000451', - "iogon;": '\U0000012F', - "iopf;": '\U0001D55A', - "iota;": '\U000003B9', - "iprod;": '\U00002A3C', - "iquest;": '\U000000BF', - "iscr;": '\U0001D4BE', - "isin;": '\U00002208', - "isinE;": '\U000022F9', - "isindot;": '\U000022F5', - "isins;": '\U000022F4', - "isinsv;": '\U000022F3', - "isinv;": '\U00002208', - "it;": '\U00002062', - "itilde;": '\U00000129', - "iukcy;": '\U00000456', - "iuml;": '\U000000EF', - "jcirc;": '\U00000135', - "jcy;": '\U00000439', - "jfr;": '\U0001D527', - "jmath;": '\U00000237', - "jopf;": '\U0001D55B', - "jscr;": '\U0001D4BF', - "jsercy;": '\U00000458', - "jukcy;": '\U00000454', - "kappa;": '\U000003BA', - "kappav;": '\U000003F0', - "kcedil;": '\U00000137', - "kcy;": '\U0000043A', - "kfr;": '\U0001D528', - "kgreen;": '\U00000138', - "khcy;": '\U00000445', - "kjcy;": '\U0000045C', - "kopf;": '\U0001D55C', - "kscr;": '\U0001D4C0', - "lAarr;": '\U000021DA', - "lArr;": '\U000021D0', - "lAtail;": '\U0000291B', - "lBarr;": '\U0000290E', - "lE;": '\U00002266', - "lEg;": '\U00002A8B', - "lHar;": '\U00002962', - "lacute;": '\U0000013A', - "laemptyv;": '\U000029B4', - "lagran;": '\U00002112', - "lambda;": '\U000003BB', - "lang;": '\U000027E8', - "langd;": '\U00002991', - "langle;": '\U000027E8', - "lap;": '\U00002A85', - "laquo;": '\U000000AB', - "larr;": '\U00002190', - "larrb;": '\U000021E4', - "larrbfs;": '\U0000291F', - "larrfs;": '\U0000291D', - "larrhk;": '\U000021A9', - "larrlp;": '\U000021AB', - "larrpl;": '\U00002939', - "larrsim;": '\U00002973', - "larrtl;": '\U000021A2', - "lat;": '\U00002AAB', - "latail;": '\U00002919', - "late;": '\U00002AAD', - "lbarr;": '\U0000290C', - "lbbrk;": '\U00002772', - "lbrace;": '\U0000007B', - "lbrack;": '\U0000005B', - "lbrke;": '\U0000298B', - "lbrksld;": '\U0000298F', - "lbrkslu;": '\U0000298D', - "lcaron;": '\U0000013E', - "lcedil;": '\U0000013C', - "lceil;": '\U00002308', - "lcub;": '\U0000007B', - "lcy;": '\U0000043B', - "ldca;": '\U00002936', - "ldquo;": '\U0000201C', - "ldquor;": '\U0000201E', - "ldrdhar;": '\U00002967', - "ldrushar;": '\U0000294B', - "ldsh;": '\U000021B2', - "le;": '\U00002264', - "leftarrow;": '\U00002190', - "leftarrowtail;": '\U000021A2', - "leftharpoondown;": '\U000021BD', - "leftharpoonup;": '\U000021BC', - "leftleftarrows;": '\U000021C7', - "leftrightarrow;": '\U00002194', - "leftrightarrows;": '\U000021C6', - "leftrightharpoons;": '\U000021CB', - "leftrightsquigarrow;": '\U000021AD', - "leftthreetimes;": '\U000022CB', - "leg;": '\U000022DA', - "leq;": '\U00002264', - "leqq;": '\U00002266', - "leqslant;": '\U00002A7D', - "les;": '\U00002A7D', - "lescc;": '\U00002AA8', - "lesdot;": '\U00002A7F', - "lesdoto;": '\U00002A81', - "lesdotor;": '\U00002A83', - "lesges;": '\U00002A93', - "lessapprox;": '\U00002A85', - "lessdot;": '\U000022D6', - "lesseqgtr;": '\U000022DA', - "lesseqqgtr;": '\U00002A8B', - "lessgtr;": '\U00002276', - "lesssim;": '\U00002272', - "lfisht;": '\U0000297C', - "lfloor;": '\U0000230A', - "lfr;": '\U0001D529', - "lg;": '\U00002276', - "lgE;": '\U00002A91', - "lhard;": '\U000021BD', - "lharu;": '\U000021BC', - "lharul;": '\U0000296A', - "lhblk;": '\U00002584', - "ljcy;": '\U00000459', - "ll;": '\U0000226A', - "llarr;": '\U000021C7', - "llcorner;": '\U0000231E', - "llhard;": '\U0000296B', - "lltri;": '\U000025FA', - "lmidot;": '\U00000140', - "lmoust;": '\U000023B0', - "lmoustache;": '\U000023B0', - "lnE;": '\U00002268', - "lnap;": '\U00002A89', - "lnapprox;": '\U00002A89', - "lne;": '\U00002A87', - "lneq;": '\U00002A87', - "lneqq;": '\U00002268', - "lnsim;": '\U000022E6', - "loang;": '\U000027EC', - "loarr;": '\U000021FD', - "lobrk;": '\U000027E6', - "longleftarrow;": '\U000027F5', - "longleftrightarrow;": '\U000027F7', - "longmapsto;": '\U000027FC', - "longrightarrow;": '\U000027F6', - "looparrowleft;": '\U000021AB', - "looparrowright;": '\U000021AC', - "lopar;": '\U00002985', - "lopf;": '\U0001D55D', - "loplus;": '\U00002A2D', - "lotimes;": '\U00002A34', - "lowast;": '\U00002217', - "lowbar;": '\U0000005F', - "loz;": '\U000025CA', - "lozenge;": '\U000025CA', - "lozf;": '\U000029EB', - "lpar;": '\U00000028', - "lparlt;": '\U00002993', - "lrarr;": '\U000021C6', - "lrcorner;": '\U0000231F', - "lrhar;": '\U000021CB', - "lrhard;": '\U0000296D', - "lrm;": '\U0000200E', - "lrtri;": '\U000022BF', - "lsaquo;": '\U00002039', - "lscr;": '\U0001D4C1', - "lsh;": '\U000021B0', - "lsim;": '\U00002272', - "lsime;": '\U00002A8D', - "lsimg;": '\U00002A8F', - "lsqb;": '\U0000005B', - "lsquo;": '\U00002018', - "lsquor;": '\U0000201A', - "lstrok;": '\U00000142', - "lt;": '\U0000003C', - "ltcc;": '\U00002AA6', - "ltcir;": '\U00002A79', - "ltdot;": '\U000022D6', - "lthree;": '\U000022CB', - "ltimes;": '\U000022C9', - "ltlarr;": '\U00002976', - "ltquest;": '\U00002A7B', - "ltrPar;": '\U00002996', - "ltri;": '\U000025C3', - "ltrie;": '\U000022B4', - "ltrif;": '\U000025C2', - "lurdshar;": '\U0000294A', - "luruhar;": '\U00002966', - "mDDot;": '\U0000223A', - "macr;": '\U000000AF', - "male;": '\U00002642', - "malt;": '\U00002720', - "maltese;": '\U00002720', - "map;": '\U000021A6', - "mapsto;": '\U000021A6', - "mapstodown;": '\U000021A7', - "mapstoleft;": '\U000021A4', - "mapstoup;": '\U000021A5', - "marker;": '\U000025AE', - "mcomma;": '\U00002A29', - "mcy;": '\U0000043C', - "mdash;": '\U00002014', - "measuredangle;": '\U00002221', - "mfr;": '\U0001D52A', - "mho;": '\U00002127', - "micro;": '\U000000B5', - "mid;": '\U00002223', - "midast;": '\U0000002A', - "midcir;": '\U00002AF0', - "middot;": '\U000000B7', - "minus;": '\U00002212', - "minusb;": '\U0000229F', - "minusd;": '\U00002238', - "minusdu;": '\U00002A2A', - "mlcp;": '\U00002ADB', - "mldr;": '\U00002026', - "mnplus;": '\U00002213', - "models;": '\U000022A7', - "mopf;": '\U0001D55E', - "mp;": '\U00002213', - "mscr;": '\U0001D4C2', - "mstpos;": '\U0000223E', - "mu;": '\U000003BC', - "multimap;": '\U000022B8', - "mumap;": '\U000022B8', - "nLeftarrow;": '\U000021CD', - "nLeftrightarrow;": '\U000021CE', - "nRightarrow;": '\U000021CF', - "nVDash;": '\U000022AF', - "nVdash;": '\U000022AE', - "nabla;": '\U00002207', - "nacute;": '\U00000144', - "nap;": '\U00002249', - "napos;": '\U00000149', - "napprox;": '\U00002249', - "natur;": '\U0000266E', - "natural;": '\U0000266E', - "naturals;": '\U00002115', - "nbsp;": '\U000000A0', - "ncap;": '\U00002A43', - "ncaron;": '\U00000148', - "ncedil;": '\U00000146', - "ncong;": '\U00002247', - "ncup;": '\U00002A42', - "ncy;": '\U0000043D', - "ndash;": '\U00002013', - "ne;": '\U00002260', - "neArr;": '\U000021D7', - "nearhk;": '\U00002924', - "nearr;": '\U00002197', - "nearrow;": '\U00002197', - "nequiv;": '\U00002262', - "nesear;": '\U00002928', - "nexist;": '\U00002204', - "nexists;": '\U00002204', - "nfr;": '\U0001D52B', - "nge;": '\U00002271', - "ngeq;": '\U00002271', - "ngsim;": '\U00002275', - "ngt;": '\U0000226F', - "ngtr;": '\U0000226F', - "nhArr;": '\U000021CE', - "nharr;": '\U000021AE', - "nhpar;": '\U00002AF2', - "ni;": '\U0000220B', - "nis;": '\U000022FC', - "nisd;": '\U000022FA', - "niv;": '\U0000220B', - "njcy;": '\U0000045A', - "nlArr;": '\U000021CD', - "nlarr;": '\U0000219A', - "nldr;": '\U00002025', - "nle;": '\U00002270', - "nleftarrow;": '\U0000219A', - "nleftrightarrow;": '\U000021AE', - "nleq;": '\U00002270', - "nless;": '\U0000226E', - "nlsim;": '\U00002274', - "nlt;": '\U0000226E', - "nltri;": '\U000022EA', - "nltrie;": '\U000022EC', - "nmid;": '\U00002224', - "nopf;": '\U0001D55F', - "not;": '\U000000AC', - "notin;": '\U00002209', - "notinva;": '\U00002209', - "notinvb;": '\U000022F7', - "notinvc;": '\U000022F6', - "notni;": '\U0000220C', - "notniva;": '\U0000220C', - "notnivb;": '\U000022FE', - "notnivc;": '\U000022FD', - "npar;": '\U00002226', - "nparallel;": '\U00002226', - "npolint;": '\U00002A14', - "npr;": '\U00002280', - "nprcue;": '\U000022E0', - "nprec;": '\U00002280', - "nrArr;": '\U000021CF', - "nrarr;": '\U0000219B', - "nrightarrow;": '\U0000219B', - "nrtri;": '\U000022EB', - "nrtrie;": '\U000022ED', - "nsc;": '\U00002281', - "nsccue;": '\U000022E1', - "nscr;": '\U0001D4C3', - "nshortmid;": '\U00002224', - "nshortparallel;": '\U00002226', - "nsim;": '\U00002241', - "nsime;": '\U00002244', - "nsimeq;": '\U00002244', - "nsmid;": '\U00002224', - "nspar;": '\U00002226', - "nsqsube;": '\U000022E2', - "nsqsupe;": '\U000022E3', - "nsub;": '\U00002284', - "nsube;": '\U00002288', - "nsubseteq;": '\U00002288', - "nsucc;": '\U00002281', - "nsup;": '\U00002285', - "nsupe;": '\U00002289', - "nsupseteq;": '\U00002289', - "ntgl;": '\U00002279', - "ntilde;": '\U000000F1', - "ntlg;": '\U00002278', - "ntriangleleft;": '\U000022EA', - "ntrianglelefteq;": '\U000022EC', - "ntriangleright;": '\U000022EB', - "ntrianglerighteq;": '\U000022ED', - "nu;": '\U000003BD', - "num;": '\U00000023', - "numero;": '\U00002116', - "numsp;": '\U00002007', - "nvDash;": '\U000022AD', - "nvHarr;": '\U00002904', - "nvdash;": '\U000022AC', - "nvinfin;": '\U000029DE', - "nvlArr;": '\U00002902', - "nvrArr;": '\U00002903', - "nwArr;": '\U000021D6', - "nwarhk;": '\U00002923', - "nwarr;": '\U00002196', - "nwarrow;": '\U00002196', - "nwnear;": '\U00002927', - "oS;": '\U000024C8', - "oacute;": '\U000000F3', - "oast;": '\U0000229B', - "ocir;": '\U0000229A', - "ocirc;": '\U000000F4', - "ocy;": '\U0000043E', - "odash;": '\U0000229D', - "odblac;": '\U00000151', - "odiv;": '\U00002A38', - "odot;": '\U00002299', - "odsold;": '\U000029BC', - "oelig;": '\U00000153', - "ofcir;": '\U000029BF', - "ofr;": '\U0001D52C', - "ogon;": '\U000002DB', - "ograve;": '\U000000F2', - "ogt;": '\U000029C1', - "ohbar;": '\U000029B5', - "ohm;": '\U000003A9', - "oint;": '\U0000222E', - "olarr;": '\U000021BA', - "olcir;": '\U000029BE', - "olcross;": '\U000029BB', - "oline;": '\U0000203E', - "olt;": '\U000029C0', - "omacr;": '\U0000014D', - "omega;": '\U000003C9', - "omicron;": '\U000003BF', - "omid;": '\U000029B6', - "ominus;": '\U00002296', - "oopf;": '\U0001D560', - "opar;": '\U000029B7', - "operp;": '\U000029B9', - "oplus;": '\U00002295', - "or;": '\U00002228', - "orarr;": '\U000021BB', - "ord;": '\U00002A5D', - "order;": '\U00002134', - "orderof;": '\U00002134', - "ordf;": '\U000000AA', - "ordm;": '\U000000BA', - "origof;": '\U000022B6', - "oror;": '\U00002A56', - "orslope;": '\U00002A57', - "orv;": '\U00002A5B', - "oscr;": '\U00002134', - "oslash;": '\U000000F8', - "osol;": '\U00002298', - "otilde;": '\U000000F5', - "otimes;": '\U00002297', - "otimesas;": '\U00002A36', - "ouml;": '\U000000F6', - "ovbar;": '\U0000233D', - "par;": '\U00002225', - "para;": '\U000000B6', - "parallel;": '\U00002225', - "parsim;": '\U00002AF3', - "parsl;": '\U00002AFD', - "part;": '\U00002202', - "pcy;": '\U0000043F', - "percnt;": '\U00000025', - "period;": '\U0000002E', - "permil;": '\U00002030', - "perp;": '\U000022A5', - "pertenk;": '\U00002031', - "pfr;": '\U0001D52D', - "phi;": '\U000003C6', - "phiv;": '\U000003D5', - "phmmat;": '\U00002133', - "phone;": '\U0000260E', - "pi;": '\U000003C0', - "pitchfork;": '\U000022D4', - "piv;": '\U000003D6', - "planck;": '\U0000210F', - "planckh;": '\U0000210E', - "plankv;": '\U0000210F', - "plus;": '\U0000002B', - "plusacir;": '\U00002A23', - "plusb;": '\U0000229E', - "pluscir;": '\U00002A22', - "plusdo;": '\U00002214', - "plusdu;": '\U00002A25', - "pluse;": '\U00002A72', - "plusmn;": '\U000000B1', - "plussim;": '\U00002A26', - "plustwo;": '\U00002A27', - "pm;": '\U000000B1', - "pointint;": '\U00002A15', - "popf;": '\U0001D561', - "pound;": '\U000000A3', - "pr;": '\U0000227A', - "prE;": '\U00002AB3', - "prap;": '\U00002AB7', - "prcue;": '\U0000227C', - "pre;": '\U00002AAF', - "prec;": '\U0000227A', - "precapprox;": '\U00002AB7', - "preccurlyeq;": '\U0000227C', - "preceq;": '\U00002AAF', - "precnapprox;": '\U00002AB9', - "precneqq;": '\U00002AB5', - "precnsim;": '\U000022E8', - "precsim;": '\U0000227E', - "prime;": '\U00002032', - "primes;": '\U00002119', - "prnE;": '\U00002AB5', - "prnap;": '\U00002AB9', - "prnsim;": '\U000022E8', - "prod;": '\U0000220F', - "profalar;": '\U0000232E', - "profline;": '\U00002312', - "profsurf;": '\U00002313', - "prop;": '\U0000221D', - "propto;": '\U0000221D', - "prsim;": '\U0000227E', - "prurel;": '\U000022B0', - "pscr;": '\U0001D4C5', - "psi;": '\U000003C8', - "puncsp;": '\U00002008', - "qfr;": '\U0001D52E', - "qint;": '\U00002A0C', - "qopf;": '\U0001D562', - "qprime;": '\U00002057', - "qscr;": '\U0001D4C6', - "quaternions;": '\U0000210D', - "quatint;": '\U00002A16', - "quest;": '\U0000003F', - "questeq;": '\U0000225F', - "quot;": '\U00000022', - "rAarr;": '\U000021DB', - "rArr;": '\U000021D2', - "rAtail;": '\U0000291C', - "rBarr;": '\U0000290F', - "rHar;": '\U00002964', - "racute;": '\U00000155', - "radic;": '\U0000221A', - "raemptyv;": '\U000029B3', - "rang;": '\U000027E9', - "rangd;": '\U00002992', - "range;": '\U000029A5', - "rangle;": '\U000027E9', - "raquo;": '\U000000BB', - "rarr;": '\U00002192', - "rarrap;": '\U00002975', - "rarrb;": '\U000021E5', - "rarrbfs;": '\U00002920', - "rarrc;": '\U00002933', - "rarrfs;": '\U0000291E', - "rarrhk;": '\U000021AA', - "rarrlp;": '\U000021AC', - "rarrpl;": '\U00002945', - "rarrsim;": '\U00002974', - "rarrtl;": '\U000021A3', - "rarrw;": '\U0000219D', - "ratail;": '\U0000291A', - "ratio;": '\U00002236', - "rationals;": '\U0000211A', - "rbarr;": '\U0000290D', - "rbbrk;": '\U00002773', - "rbrace;": '\U0000007D', - "rbrack;": '\U0000005D', - "rbrke;": '\U0000298C', - "rbrksld;": '\U0000298E', - "rbrkslu;": '\U00002990', - "rcaron;": '\U00000159', - "rcedil;": '\U00000157', - "rceil;": '\U00002309', - "rcub;": '\U0000007D', - "rcy;": '\U00000440', - "rdca;": '\U00002937', - "rdldhar;": '\U00002969', - "rdquo;": '\U0000201D', - "rdquor;": '\U0000201D', - "rdsh;": '\U000021B3', - "real;": '\U0000211C', - "realine;": '\U0000211B', - "realpart;": '\U0000211C', - "reals;": '\U0000211D', - "rect;": '\U000025AD', - "reg;": '\U000000AE', - "rfisht;": '\U0000297D', - "rfloor;": '\U0000230B', - "rfr;": '\U0001D52F', - "rhard;": '\U000021C1', - "rharu;": '\U000021C0', - "rharul;": '\U0000296C', - "rho;": '\U000003C1', - "rhov;": '\U000003F1', - "rightarrow;": '\U00002192', - "rightarrowtail;": '\U000021A3', - "rightharpoondown;": '\U000021C1', - "rightharpoonup;": '\U000021C0', - "rightleftarrows;": '\U000021C4', - "rightleftharpoons;": '\U000021CC', - "rightrightarrows;": '\U000021C9', - "rightsquigarrow;": '\U0000219D', - "rightthreetimes;": '\U000022CC', - "ring;": '\U000002DA', - "risingdotseq;": '\U00002253', - "rlarr;": '\U000021C4', - "rlhar;": '\U000021CC', - "rlm;": '\U0000200F', - "rmoust;": '\U000023B1', - "rmoustache;": '\U000023B1', - "rnmid;": '\U00002AEE', - "roang;": '\U000027ED', - "roarr;": '\U000021FE', - "robrk;": '\U000027E7', - "ropar;": '\U00002986', - "ropf;": '\U0001D563', - "roplus;": '\U00002A2E', - "rotimes;": '\U00002A35', - "rpar;": '\U00000029', - "rpargt;": '\U00002994', - "rppolint;": '\U00002A12', - "rrarr;": '\U000021C9', - "rsaquo;": '\U0000203A', - "rscr;": '\U0001D4C7', - "rsh;": '\U000021B1', - "rsqb;": '\U0000005D', - "rsquo;": '\U00002019', - "rsquor;": '\U00002019', - "rthree;": '\U000022CC', - "rtimes;": '\U000022CA', - "rtri;": '\U000025B9', - "rtrie;": '\U000022B5', - "rtrif;": '\U000025B8', - "rtriltri;": '\U000029CE', - "ruluhar;": '\U00002968', - "rx;": '\U0000211E', - "sacute;": '\U0000015B', - "sbquo;": '\U0000201A', - "sc;": '\U0000227B', - "scE;": '\U00002AB4', - "scap;": '\U00002AB8', - "scaron;": '\U00000161', - "sccue;": '\U0000227D', - "sce;": '\U00002AB0', - "scedil;": '\U0000015F', - "scirc;": '\U0000015D', - "scnE;": '\U00002AB6', - "scnap;": '\U00002ABA', - "scnsim;": '\U000022E9', - "scpolint;": '\U00002A13', - "scsim;": '\U0000227F', - "scy;": '\U00000441', - "sdot;": '\U000022C5', - "sdotb;": '\U000022A1', - "sdote;": '\U00002A66', - "seArr;": '\U000021D8', - "searhk;": '\U00002925', - "searr;": '\U00002198', - "searrow;": '\U00002198', - "sect;": '\U000000A7', - "semi;": '\U0000003B', - "seswar;": '\U00002929', - "setminus;": '\U00002216', - "setmn;": '\U00002216', - "sext;": '\U00002736', - "sfr;": '\U0001D530', - "sfrown;": '\U00002322', - "sharp;": '\U0000266F', - "shchcy;": '\U00000449', - "shcy;": '\U00000448', - "shortmid;": '\U00002223', - "shortparallel;": '\U00002225', - "shy;": '\U000000AD', - "sigma;": '\U000003C3', - "sigmaf;": '\U000003C2', - "sigmav;": '\U000003C2', - "sim;": '\U0000223C', - "simdot;": '\U00002A6A', - "sime;": '\U00002243', - "simeq;": '\U00002243', - "simg;": '\U00002A9E', - "simgE;": '\U00002AA0', - "siml;": '\U00002A9D', - "simlE;": '\U00002A9F', - "simne;": '\U00002246', - "simplus;": '\U00002A24', - "simrarr;": '\U00002972', - "slarr;": '\U00002190', - "smallsetminus;": '\U00002216', - "smashp;": '\U00002A33', - "smeparsl;": '\U000029E4', - "smid;": '\U00002223', - "smile;": '\U00002323', - "smt;": '\U00002AAA', - "smte;": '\U00002AAC', - "softcy;": '\U0000044C', - "sol;": '\U0000002F', - "solb;": '\U000029C4', - "solbar;": '\U0000233F', - "sopf;": '\U0001D564', - "spades;": '\U00002660', - "spadesuit;": '\U00002660', - "spar;": '\U00002225', - "sqcap;": '\U00002293', - "sqcup;": '\U00002294', - "sqsub;": '\U0000228F', - "sqsube;": '\U00002291', - "sqsubset;": '\U0000228F', - "sqsubseteq;": '\U00002291', - "sqsup;": '\U00002290', - "sqsupe;": '\U00002292', - "sqsupset;": '\U00002290', - "sqsupseteq;": '\U00002292', - "squ;": '\U000025A1', - "square;": '\U000025A1', - "squarf;": '\U000025AA', - "squf;": '\U000025AA', - "srarr;": '\U00002192', - "sscr;": '\U0001D4C8', - "ssetmn;": '\U00002216', - "ssmile;": '\U00002323', - "sstarf;": '\U000022C6', - "star;": '\U00002606', - "starf;": '\U00002605', - "straightepsilon;": '\U000003F5', - "straightphi;": '\U000003D5', - "strns;": '\U000000AF', - "sub;": '\U00002282', - "subE;": '\U00002AC5', - "subdot;": '\U00002ABD', - "sube;": '\U00002286', - "subedot;": '\U00002AC3', - "submult;": '\U00002AC1', - "subnE;": '\U00002ACB', - "subne;": '\U0000228A', - "subplus;": '\U00002ABF', - "subrarr;": '\U00002979', - "subset;": '\U00002282', - "subseteq;": '\U00002286', - "subseteqq;": '\U00002AC5', - "subsetneq;": '\U0000228A', - "subsetneqq;": '\U00002ACB', - "subsim;": '\U00002AC7', - "subsub;": '\U00002AD5', - "subsup;": '\U00002AD3', - "succ;": '\U0000227B', - "succapprox;": '\U00002AB8', - "succcurlyeq;": '\U0000227D', - "succeq;": '\U00002AB0', - "succnapprox;": '\U00002ABA', - "succneqq;": '\U00002AB6', - "succnsim;": '\U000022E9', - "succsim;": '\U0000227F', - "sum;": '\U00002211', - "sung;": '\U0000266A', - "sup;": '\U00002283', - "sup1;": '\U000000B9', - "sup2;": '\U000000B2', - "sup3;": '\U000000B3', - "supE;": '\U00002AC6', - "supdot;": '\U00002ABE', - "supdsub;": '\U00002AD8', - "supe;": '\U00002287', - "supedot;": '\U00002AC4', - "suphsol;": '\U000027C9', - "suphsub;": '\U00002AD7', - "suplarr;": '\U0000297B', - "supmult;": '\U00002AC2', - "supnE;": '\U00002ACC', - "supne;": '\U0000228B', - "supplus;": '\U00002AC0', - "supset;": '\U00002283', - "supseteq;": '\U00002287', - "supseteqq;": '\U00002AC6', - "supsetneq;": '\U0000228B', - "supsetneqq;": '\U00002ACC', - "supsim;": '\U00002AC8', - "supsub;": '\U00002AD4', - "supsup;": '\U00002AD6', - "swArr;": '\U000021D9', - "swarhk;": '\U00002926', - "swarr;": '\U00002199', - "swarrow;": '\U00002199', - "swnwar;": '\U0000292A', - "szlig;": '\U000000DF', - "target;": '\U00002316', - "tau;": '\U000003C4', - "tbrk;": '\U000023B4', - "tcaron;": '\U00000165', - "tcedil;": '\U00000163', - "tcy;": '\U00000442', - "tdot;": '\U000020DB', - "telrec;": '\U00002315', - "tfr;": '\U0001D531', - "there4;": '\U00002234', - "therefore;": '\U00002234', - "theta;": '\U000003B8', - "thetasym;": '\U000003D1', - "thetav;": '\U000003D1', - "thickapprox;": '\U00002248', - "thicksim;": '\U0000223C', - "thinsp;": '\U00002009', - "thkap;": '\U00002248', - "thksim;": '\U0000223C', - "thorn;": '\U000000FE', - "tilde;": '\U000002DC', - "times;": '\U000000D7', - "timesb;": '\U000022A0', - "timesbar;": '\U00002A31', - "timesd;": '\U00002A30', - "tint;": '\U0000222D', - "toea;": '\U00002928', - "top;": '\U000022A4', - "topbot;": '\U00002336', - "topcir;": '\U00002AF1', - "topf;": '\U0001D565', - "topfork;": '\U00002ADA', - "tosa;": '\U00002929', - "tprime;": '\U00002034', - "trade;": '\U00002122', - "triangle;": '\U000025B5', - "triangledown;": '\U000025BF', - "triangleleft;": '\U000025C3', - "trianglelefteq;": '\U000022B4', - "triangleq;": '\U0000225C', - "triangleright;": '\U000025B9', - "trianglerighteq;": '\U000022B5', - "tridot;": '\U000025EC', - "trie;": '\U0000225C', - "triminus;": '\U00002A3A', - "triplus;": '\U00002A39', - "trisb;": '\U000029CD', - "tritime;": '\U00002A3B', - "trpezium;": '\U000023E2', - "tscr;": '\U0001D4C9', - "tscy;": '\U00000446', - "tshcy;": '\U0000045B', - "tstrok;": '\U00000167', - "twixt;": '\U0000226C', - "twoheadleftarrow;": '\U0000219E', - "twoheadrightarrow;": '\U000021A0', - "uArr;": '\U000021D1', - "uHar;": '\U00002963', - "uacute;": '\U000000FA', - "uarr;": '\U00002191', - "ubrcy;": '\U0000045E', - "ubreve;": '\U0000016D', - "ucirc;": '\U000000FB', - "ucy;": '\U00000443', - "udarr;": '\U000021C5', - "udblac;": '\U00000171', - "udhar;": '\U0000296E', - "ufisht;": '\U0000297E', - "ufr;": '\U0001D532', - "ugrave;": '\U000000F9', - "uharl;": '\U000021BF', - "uharr;": '\U000021BE', - "uhblk;": '\U00002580', - "ulcorn;": '\U0000231C', - "ulcorner;": '\U0000231C', - "ulcrop;": '\U0000230F', - "ultri;": '\U000025F8', - "umacr;": '\U0000016B', - "uml;": '\U000000A8', - "uogon;": '\U00000173', - "uopf;": '\U0001D566', - "uparrow;": '\U00002191', - "updownarrow;": '\U00002195', - "upharpoonleft;": '\U000021BF', - "upharpoonright;": '\U000021BE', - "uplus;": '\U0000228E', - "upsi;": '\U000003C5', - "upsih;": '\U000003D2', - "upsilon;": '\U000003C5', - "upuparrows;": '\U000021C8', - "urcorn;": '\U0000231D', - "urcorner;": '\U0000231D', - "urcrop;": '\U0000230E', - "uring;": '\U0000016F', - "urtri;": '\U000025F9', - "uscr;": '\U0001D4CA', - "utdot;": '\U000022F0', - "utilde;": '\U00000169', - "utri;": '\U000025B5', - "utrif;": '\U000025B4', - "uuarr;": '\U000021C8', - "uuml;": '\U000000FC', - "uwangle;": '\U000029A7', - "vArr;": '\U000021D5', - "vBar;": '\U00002AE8', - "vBarv;": '\U00002AE9', - "vDash;": '\U000022A8', - "vangrt;": '\U0000299C', - "varepsilon;": '\U000003F5', - "varkappa;": '\U000003F0', - "varnothing;": '\U00002205', - "varphi;": '\U000003D5', - "varpi;": '\U000003D6', - "varpropto;": '\U0000221D', - "varr;": '\U00002195', - "varrho;": '\U000003F1', - "varsigma;": '\U000003C2', - "vartheta;": '\U000003D1', - "vartriangleleft;": '\U000022B2', - "vartriangleright;": '\U000022B3', - "vcy;": '\U00000432', - "vdash;": '\U000022A2', - "vee;": '\U00002228', - "veebar;": '\U000022BB', - "veeeq;": '\U0000225A', - "vellip;": '\U000022EE', - "verbar;": '\U0000007C', - "vert;": '\U0000007C', - "vfr;": '\U0001D533', - "vltri;": '\U000022B2', - "vopf;": '\U0001D567', - "vprop;": '\U0000221D', - "vrtri;": '\U000022B3', - "vscr;": '\U0001D4CB', - "vzigzag;": '\U0000299A', - "wcirc;": '\U00000175', - "wedbar;": '\U00002A5F', - "wedge;": '\U00002227', - "wedgeq;": '\U00002259', - "weierp;": '\U00002118', - "wfr;": '\U0001D534', - "wopf;": '\U0001D568', - "wp;": '\U00002118', - "wr;": '\U00002240', - "wreath;": '\U00002240', - "wscr;": '\U0001D4CC', - "xcap;": '\U000022C2', - "xcirc;": '\U000025EF', - "xcup;": '\U000022C3', - "xdtri;": '\U000025BD', - "xfr;": '\U0001D535', - "xhArr;": '\U000027FA', - "xharr;": '\U000027F7', - "xi;": '\U000003BE', - "xlArr;": '\U000027F8', - "xlarr;": '\U000027F5', - "xmap;": '\U000027FC', - "xnis;": '\U000022FB', - "xodot;": '\U00002A00', - "xopf;": '\U0001D569', - "xoplus;": '\U00002A01', - "xotime;": '\U00002A02', - "xrArr;": '\U000027F9', - "xrarr;": '\U000027F6', - "xscr;": '\U0001D4CD', - "xsqcup;": '\U00002A06', - "xuplus;": '\U00002A04', - "xutri;": '\U000025B3', - "xvee;": '\U000022C1', - "xwedge;": '\U000022C0', - "yacute;": '\U000000FD', - "yacy;": '\U0000044F', - "ycirc;": '\U00000177', - "ycy;": '\U0000044B', - "yen;": '\U000000A5', - "yfr;": '\U0001D536', - "yicy;": '\U00000457', - "yopf;": '\U0001D56A', - "yscr;": '\U0001D4CE', - "yucy;": '\U0000044E', - "yuml;": '\U000000FF', - "zacute;": '\U0000017A', - "zcaron;": '\U0000017E', - "zcy;": '\U00000437', - "zdot;": '\U0000017C', - "zeetrf;": '\U00002128', - "zeta;": '\U000003B6', - "zfr;": '\U0001D537', - "zhcy;": '\U00000436', - "zigrarr;": '\U000021DD', - "zopf;": '\U0001D56B', - "zscr;": '\U0001D4CF', - "zwj;": '\U0000200D', - "zwnj;": '\U0000200C', - "AElig": '\U000000C6', - "AMP": '\U00000026', - "Aacute": '\U000000C1', - "Acirc": '\U000000C2', - "Agrave": '\U000000C0', - "Aring": '\U000000C5', - "Atilde": '\U000000C3', - "Auml": '\U000000C4', - "COPY": '\U000000A9', - "Ccedil": '\U000000C7', - "ETH": '\U000000D0', - "Eacute": '\U000000C9', - "Ecirc": '\U000000CA', - "Egrave": '\U000000C8', - "Euml": '\U000000CB', - "GT": '\U0000003E', - "Iacute": '\U000000CD', - "Icirc": '\U000000CE', - "Igrave": '\U000000CC', - "Iuml": '\U000000CF', - "LT": '\U0000003C', - "Ntilde": '\U000000D1', - "Oacute": '\U000000D3', - "Ocirc": '\U000000D4', - "Ograve": '\U000000D2', - "Oslash": '\U000000D8', - "Otilde": '\U000000D5', - "Ouml": '\U000000D6', - "QUOT": '\U00000022', - "REG": '\U000000AE', - "THORN": '\U000000DE', - "Uacute": '\U000000DA', - "Ucirc": '\U000000DB', - "Ugrave": '\U000000D9', - "Uuml": '\U000000DC', - "Yacute": '\U000000DD', - "aacute": '\U000000E1', - "acirc": '\U000000E2', - "acute": '\U000000B4', - "aelig": '\U000000E6', - "agrave": '\U000000E0', - "amp": '\U00000026', - "aring": '\U000000E5', - "atilde": '\U000000E3', - "auml": '\U000000E4', - "brvbar": '\U000000A6', - "ccedil": '\U000000E7', - "cedil": '\U000000B8', - "cent": '\U000000A2', - "copy": '\U000000A9', - "curren": '\U000000A4', - "deg": '\U000000B0', - "divide": '\U000000F7', - "eacute": '\U000000E9', - "ecirc": '\U000000EA', - "egrave": '\U000000E8', - "eth": '\U000000F0', - "euml": '\U000000EB', - "frac12": '\U000000BD', - "frac14": '\U000000BC', - "frac34": '\U000000BE', - "gt": '\U0000003E', - "iacute": '\U000000ED', - "icirc": '\U000000EE', - "iexcl": '\U000000A1', - "igrave": '\U000000EC', - "iquest": '\U000000BF', - "iuml": '\U000000EF', - "laquo": '\U000000AB', - "lt": '\U0000003C', - "macr": '\U000000AF', - "micro": '\U000000B5', - "middot": '\U000000B7', - "nbsp": '\U000000A0', - "not": '\U000000AC', - "ntilde": '\U000000F1', - "oacute": '\U000000F3', - "ocirc": '\U000000F4', - "ograve": '\U000000F2', - "ordf": '\U000000AA', - "ordm": '\U000000BA', - "oslash": '\U000000F8', - "otilde": '\U000000F5', - "ouml": '\U000000F6', - "para": '\U000000B6', - "plusmn": '\U000000B1', - "pound": '\U000000A3', - "quot": '\U00000022', - "raquo": '\U000000BB', - "reg": '\U000000AE', - "sect": '\U000000A7', - "shy": '\U000000AD', - "sup1": '\U000000B9', - "sup2": '\U000000B2', - "sup3": '\U000000B3', - "szlig": '\U000000DF', - "thorn": '\U000000FE', - "times": '\U000000D7', - "uacute": '\U000000FA', - "ucirc": '\U000000FB', - "ugrave": '\U000000F9', - "uml": '\U000000A8', - "uuml": '\U000000FC', - "yacute": '\U000000FD', - "yen": '\U000000A5', - "yuml": '\U000000FF', -} - -// HTML entities that are two unicode codepoints. -var entity2 = map[string][2]rune{ - // TODO(nigeltao): Handle replacements that are wider than their names. - // "nLt;": {'\u226A', '\u20D2'}, - // "nGt;": {'\u226B', '\u20D2'}, - "NotEqualTilde;": {'\u2242', '\u0338'}, - "NotGreaterFullEqual;": {'\u2267', '\u0338'}, - "NotGreaterGreater;": {'\u226B', '\u0338'}, - "NotGreaterSlantEqual;": {'\u2A7E', '\u0338'}, - "NotHumpDownHump;": {'\u224E', '\u0338'}, - "NotHumpEqual;": {'\u224F', '\u0338'}, - "NotLeftTriangleBar;": {'\u29CF', '\u0338'}, - "NotLessLess;": {'\u226A', '\u0338'}, - "NotLessSlantEqual;": {'\u2A7D', '\u0338'}, - "NotNestedGreaterGreater;": {'\u2AA2', '\u0338'}, - "NotNestedLessLess;": {'\u2AA1', '\u0338'}, - "NotPrecedesEqual;": {'\u2AAF', '\u0338'}, - "NotRightTriangleBar;": {'\u29D0', '\u0338'}, - "NotSquareSubset;": {'\u228F', '\u0338'}, - "NotSquareSuperset;": {'\u2290', '\u0338'}, - "NotSubset;": {'\u2282', '\u20D2'}, - "NotSucceedsEqual;": {'\u2AB0', '\u0338'}, - "NotSucceedsTilde;": {'\u227F', '\u0338'}, - "NotSuperset;": {'\u2283', '\u20D2'}, - "ThickSpace;": {'\u205F', '\u200A'}, - "acE;": {'\u223E', '\u0333'}, - "bne;": {'\u003D', '\u20E5'}, - "bnequiv;": {'\u2261', '\u20E5'}, - "caps;": {'\u2229', '\uFE00'}, - "cups;": {'\u222A', '\uFE00'}, - "fjlig;": {'\u0066', '\u006A'}, - "gesl;": {'\u22DB', '\uFE00'}, - "gvertneqq;": {'\u2269', '\uFE00'}, - "gvnE;": {'\u2269', '\uFE00'}, - "lates;": {'\u2AAD', '\uFE00'}, - "lesg;": {'\u22DA', '\uFE00'}, - "lvertneqq;": {'\u2268', '\uFE00'}, - "lvnE;": {'\u2268', '\uFE00'}, - "nGg;": {'\u22D9', '\u0338'}, - "nGtv;": {'\u226B', '\u0338'}, - "nLl;": {'\u22D8', '\u0338'}, - "nLtv;": {'\u226A', '\u0338'}, - "nang;": {'\u2220', '\u20D2'}, - "napE;": {'\u2A70', '\u0338'}, - "napid;": {'\u224B', '\u0338'}, - "nbump;": {'\u224E', '\u0338'}, - "nbumpe;": {'\u224F', '\u0338'}, - "ncongdot;": {'\u2A6D', '\u0338'}, - "nedot;": {'\u2250', '\u0338'}, - "nesim;": {'\u2242', '\u0338'}, - "ngE;": {'\u2267', '\u0338'}, - "ngeqq;": {'\u2267', '\u0338'}, - "ngeqslant;": {'\u2A7E', '\u0338'}, - "nges;": {'\u2A7E', '\u0338'}, - "nlE;": {'\u2266', '\u0338'}, - "nleqq;": {'\u2266', '\u0338'}, - "nleqslant;": {'\u2A7D', '\u0338'}, - "nles;": {'\u2A7D', '\u0338'}, - "notinE;": {'\u22F9', '\u0338'}, - "notindot;": {'\u22F5', '\u0338'}, - "nparsl;": {'\u2AFD', '\u20E5'}, - "npart;": {'\u2202', '\u0338'}, - "npre;": {'\u2AAF', '\u0338'}, - "npreceq;": {'\u2AAF', '\u0338'}, - "nrarrc;": {'\u2933', '\u0338'}, - "nrarrw;": {'\u219D', '\u0338'}, - "nsce;": {'\u2AB0', '\u0338'}, - "nsubE;": {'\u2AC5', '\u0338'}, - "nsubset;": {'\u2282', '\u20D2'}, - "nsubseteqq;": {'\u2AC5', '\u0338'}, - "nsucceq;": {'\u2AB0', '\u0338'}, - "nsupE;": {'\u2AC6', '\u0338'}, - "nsupset;": {'\u2283', '\u20D2'}, - "nsupseteqq;": {'\u2AC6', '\u0338'}, - "nvap;": {'\u224D', '\u20D2'}, - "nvge;": {'\u2265', '\u20D2'}, - "nvgt;": {'\u003E', '\u20D2'}, - "nvle;": {'\u2264', '\u20D2'}, - "nvlt;": {'\u003C', '\u20D2'}, - "nvltrie;": {'\u22B4', '\u20D2'}, - "nvrtrie;": {'\u22B5', '\u20D2'}, - "nvsim;": {'\u223C', '\u20D2'}, - "race;": {'\u223D', '\u0331'}, - "smtes;": {'\u2AAC', '\uFE00'}, - "sqcaps;": {'\u2293', '\uFE00'}, - "sqcups;": {'\u2294', '\uFE00'}, - "varsubsetneq;": {'\u228A', '\uFE00'}, - "varsubsetneqq;": {'\u2ACB', '\uFE00'}, - "varsupsetneq;": {'\u228B', '\uFE00'}, - "varsupsetneqq;": {'\u2ACC', '\uFE00'}, - "vnsub;": {'\u2282', '\u20D2'}, - "vnsup;": {'\u2283', '\u20D2'}, - "vsubnE;": {'\u2ACB', '\uFE00'}, - "vsubne;": {'\u228A', '\uFE00'}, - "vsupnE;": {'\u2ACC', '\uFE00'}, - "vsupne;": {'\u228B', '\uFE00'}, -} diff --git a/vendor/golang.org/x/net/html/escape.go b/vendor/golang.org/x/net/html/escape.go deleted file mode 100644 index d8561396..00000000 --- a/vendor/golang.org/x/net/html/escape.go +++ /dev/null @@ -1,258 +0,0 @@ -// Copyright 2010 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package html - -import ( - "bytes" - "strings" - "unicode/utf8" -) - -// These replacements permit compatibility with old numeric entities that -// assumed Windows-1252 encoding. -// https://html.spec.whatwg.org/multipage/syntax.html#consume-a-character-reference -var replacementTable = [...]rune{ - '\u20AC', // First entry is what 0x80 should be replaced with. - '\u0081', - '\u201A', - '\u0192', - '\u201E', - '\u2026', - '\u2020', - '\u2021', - '\u02C6', - '\u2030', - '\u0160', - '\u2039', - '\u0152', - '\u008D', - '\u017D', - '\u008F', - '\u0090', - '\u2018', - '\u2019', - '\u201C', - '\u201D', - '\u2022', - '\u2013', - '\u2014', - '\u02DC', - '\u2122', - '\u0161', - '\u203A', - '\u0153', - '\u009D', - '\u017E', - '\u0178', // Last entry is 0x9F. - // 0x00->'\uFFFD' is handled programmatically. - // 0x0D->'\u000D' is a no-op. -} - -// unescapeEntity reads an entity like "<" from b[src:] and writes the -// corresponding "<" to b[dst:], returning the incremented dst and src cursors. -// Precondition: b[src] == '&' && dst <= src. -// attribute should be true if parsing an attribute value. -func unescapeEntity(b []byte, dst, src int, attribute bool) (dst1, src1 int) { - // https://html.spec.whatwg.org/multipage/syntax.html#consume-a-character-reference - - // i starts at 1 because we already know that s[0] == '&'. - i, s := 1, b[src:] - - if len(s) <= 1 { - b[dst] = b[src] - return dst + 1, src + 1 - } - - if s[i] == '#' { - if len(s) <= 3 { // We need to have at least "&#.". - b[dst] = b[src] - return dst + 1, src + 1 - } - i++ - c := s[i] - hex := false - if c == 'x' || c == 'X' { - hex = true - i++ - } - - x := '\x00' - for i < len(s) { - c = s[i] - i++ - if hex { - if '0' <= c && c <= '9' { - x = 16*x + rune(c) - '0' - continue - } else if 'a' <= c && c <= 'f' { - x = 16*x + rune(c) - 'a' + 10 - continue - } else if 'A' <= c && c <= 'F' { - x = 16*x + rune(c) - 'A' + 10 - continue - } - } else if '0' <= c && c <= '9' { - x = 10*x + rune(c) - '0' - continue - } - if c != ';' { - i-- - } - break - } - - if i <= 3 { // No characters matched. - b[dst] = b[src] - return dst + 1, src + 1 - } - - if 0x80 <= x && x <= 0x9F { - // Replace characters from Windows-1252 with UTF-8 equivalents. - x = replacementTable[x-0x80] - } else if x == 0 || (0xD800 <= x && x <= 0xDFFF) || x > 0x10FFFF { - // Replace invalid characters with the replacement character. - x = '\uFFFD' - } - - return dst + utf8.EncodeRune(b[dst:], x), src + i - } - - // Consume the maximum number of characters possible, with the - // consumed characters matching one of the named references. - - for i < len(s) { - c := s[i] - i++ - // Lower-cased characters are more common in entities, so we check for them first. - if 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' || '0' <= c && c <= '9' { - continue - } - if c != ';' { - i-- - } - break - } - - entityName := string(s[1:i]) - if entityName == "" { - // No-op. - } else if attribute && entityName[len(entityName)-1] != ';' && len(s) > i && s[i] == '=' { - // No-op. - } else if x := entity[entityName]; x != 0 { - return dst + utf8.EncodeRune(b[dst:], x), src + i - } else if x := entity2[entityName]; x[0] != 0 { - dst1 := dst + utf8.EncodeRune(b[dst:], x[0]) - return dst1 + utf8.EncodeRune(b[dst1:], x[1]), src + i - } else if !attribute { - maxLen := len(entityName) - 1 - if maxLen > longestEntityWithoutSemicolon { - maxLen = longestEntityWithoutSemicolon - } - for j := maxLen; j > 1; j-- { - if x := entity[entityName[:j]]; x != 0 { - return dst + utf8.EncodeRune(b[dst:], x), src + j + 1 - } - } - } - - dst1, src1 = dst+i, src+i - copy(b[dst:dst1], b[src:src1]) - return dst1, src1 -} - -// unescape unescapes b's entities in-place, so that "a<b" becomes "a<b". -// attribute should be true if parsing an attribute value. -func unescape(b []byte, attribute bool) []byte { - for i, c := range b { - if c == '&' { - dst, src := unescapeEntity(b, i, i, attribute) - for src < len(b) { - c := b[src] - if c == '&' { - dst, src = unescapeEntity(b, dst, src, attribute) - } else { - b[dst] = c - dst, src = dst+1, src+1 - } - } - return b[0:dst] - } - } - return b -} - -// lower lower-cases the A-Z bytes in b in-place, so that "aBc" becomes "abc". -func lower(b []byte) []byte { - for i, c := range b { - if 'A' <= c && c <= 'Z' { - b[i] = c + 'a' - 'A' - } - } - return b -} - -const escapedChars = "&'<>\"\r" - -func escape(w writer, s string) error { - i := strings.IndexAny(s, escapedChars) - for i != -1 { - if _, err := w.WriteString(s[:i]); err != nil { - return err - } - var esc string - switch s[i] { - case '&': - esc = "&" - case '\'': - // "'" is shorter than "'" and apos was not in HTML until HTML5. - esc = "'" - case '<': - esc = "<" - case '>': - esc = ">" - case '"': - // """ is shorter than """. - esc = """ - case '\r': - esc = " " - default: - panic("unrecognized escape character") - } - s = s[i+1:] - if _, err := w.WriteString(esc); err != nil { - return err - } - i = strings.IndexAny(s, escapedChars) - } - _, err := w.WriteString(s) - return err -} - -// EscapeString escapes special characters like "<" to become "<". It -// escapes only five such characters: <, >, &, ' and ". -// UnescapeString(EscapeString(s)) == s always holds, but the converse isn't -// always true. -func EscapeString(s string) string { - if strings.IndexAny(s, escapedChars) == -1 { - return s - } - var buf bytes.Buffer - escape(&buf, s) - return buf.String() -} - -// UnescapeString unescapes entities like "<" to become "<". It unescapes a -// larger range of entities than EscapeString escapes. For example, "á" -// unescapes to "á", as does "á" and "&xE1;". -// UnescapeString(EscapeString(s)) == s always holds, but the converse isn't -// always true. -func UnescapeString(s string) string { - for _, c := range s { - if c == '&' { - return string(unescape([]byte(s), false)) - } - } - return s -} diff --git a/vendor/golang.org/x/net/html/foreign.go b/vendor/golang.org/x/net/html/foreign.go deleted file mode 100644 index d3b38440..00000000 --- a/vendor/golang.org/x/net/html/foreign.go +++ /dev/null @@ -1,226 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package html - -import ( - "strings" -) - -func adjustAttributeNames(aa []Attribute, nameMap map[string]string) { - for i := range aa { - if newName, ok := nameMap[aa[i].Key]; ok { - aa[i].Key = newName - } - } -} - -func adjustForeignAttributes(aa []Attribute) { - for i, a := range aa { - if a.Key == "" || a.Key[0] != 'x' { - continue - } - switch a.Key { - case "xlink:actuate", "xlink:arcrole", "xlink:href", "xlink:role", "xlink:show", - "xlink:title", "xlink:type", "xml:base", "xml:lang", "xml:space", "xmlns:xlink": - j := strings.Index(a.Key, ":") - aa[i].Namespace = a.Key[:j] - aa[i].Key = a.Key[j+1:] - } - } -} - -func htmlIntegrationPoint(n *Node) bool { - if n.Type != ElementNode { - return false - } - switch n.Namespace { - case "math": - if n.Data == "annotation-xml" { - for _, a := range n.Attr { - if a.Key == "encoding" { - val := strings.ToLower(a.Val) - if val == "text/html" || val == "application/xhtml+xml" { - return true - } - } - } - } - case "svg": - switch n.Data { - case "desc", "foreignObject", "title": - return true - } - } - return false -} - -func mathMLTextIntegrationPoint(n *Node) bool { - if n.Namespace != "math" { - return false - } - switch n.Data { - case "mi", "mo", "mn", "ms", "mtext": - return true - } - return false -} - -// Section 12.2.5.5. -var breakout = map[string]bool{ - "b": true, - "big": true, - "blockquote": true, - "body": true, - "br": true, - "center": true, - "code": true, - "dd": true, - "div": true, - "dl": true, - "dt": true, - "em": true, - "embed": true, - "h1": true, - "h2": true, - "h3": true, - "h4": true, - "h5": true, - "h6": true, - "head": true, - "hr": true, - "i": true, - "img": true, - "li": true, - "listing": true, - "menu": true, - "meta": true, - "nobr": true, - "ol": true, - "p": true, - "pre": true, - "ruby": true, - "s": true, - "small": true, - "span": true, - "strong": true, - "strike": true, - "sub": true, - "sup": true, - "table": true, - "tt": true, - "u": true, - "ul": true, - "var": true, -} - -// Section 12.2.5.5. -var svgTagNameAdjustments = map[string]string{ - "altglyph": "altGlyph", - "altglyphdef": "altGlyphDef", - "altglyphitem": "altGlyphItem", - "animatecolor": "animateColor", - "animatemotion": "animateMotion", - "animatetransform": "animateTransform", - "clippath": "clipPath", - "feblend": "feBlend", - "fecolormatrix": "feColorMatrix", - "fecomponenttransfer": "feComponentTransfer", - "fecomposite": "feComposite", - "feconvolvematrix": "feConvolveMatrix", - "fediffuselighting": "feDiffuseLighting", - "fedisplacementmap": "feDisplacementMap", - "fedistantlight": "feDistantLight", - "feflood": "feFlood", - "fefunca": "feFuncA", - "fefuncb": "feFuncB", - "fefuncg": "feFuncG", - "fefuncr": "feFuncR", - "fegaussianblur": "feGaussianBlur", - "feimage": "feImage", - "femerge": "feMerge", - "femergenode": "feMergeNode", - "femorphology": "feMorphology", - "feoffset": "feOffset", - "fepointlight": "fePointLight", - "fespecularlighting": "feSpecularLighting", - "fespotlight": "feSpotLight", - "fetile": "feTile", - "feturbulence": "feTurbulence", - "foreignobject": "foreignObject", - "glyphref": "glyphRef", - "lineargradient": "linearGradient", - "radialgradient": "radialGradient", - "textpath": "textPath", -} - -// Section 12.2.5.1 -var mathMLAttributeAdjustments = map[string]string{ - "definitionurl": "definitionURL", -} - -var svgAttributeAdjustments = map[string]string{ - "attributename": "attributeName", - "attributetype": "attributeType", - "basefrequency": "baseFrequency", - "baseprofile": "baseProfile", - "calcmode": "calcMode", - "clippathunits": "clipPathUnits", - "contentscripttype": "contentScriptType", - "contentstyletype": "contentStyleType", - "diffuseconstant": "diffuseConstant", - "edgemode": "edgeMode", - "externalresourcesrequired": "externalResourcesRequired", - "filterres": "filterRes", - "filterunits": "filterUnits", - "glyphref": "glyphRef", - "gradienttransform": "gradientTransform", - "gradientunits": "gradientUnits", - "kernelmatrix": "kernelMatrix", - "kernelunitlength": "kernelUnitLength", - "keypoints": "keyPoints", - "keysplines": "keySplines", - "keytimes": "keyTimes", - "lengthadjust": "lengthAdjust", - "limitingconeangle": "limitingConeAngle", - "markerheight": "markerHeight", - "markerunits": "markerUnits", - "markerwidth": "markerWidth", - "maskcontentunits": "maskContentUnits", - "maskunits": "maskUnits", - "numoctaves": "numOctaves", - "pathlength": "pathLength", - "patterncontentunits": "patternContentUnits", - "patterntransform": "patternTransform", - "patternunits": "patternUnits", - "pointsatx": "pointsAtX", - "pointsaty": "pointsAtY", - "pointsatz": "pointsAtZ", - "preservealpha": "preserveAlpha", - "preserveaspectratio": "preserveAspectRatio", - "primitiveunits": "primitiveUnits", - "refx": "refX", - "refy": "refY", - "repeatcount": "repeatCount", - "repeatdur": "repeatDur", - "requiredextensions": "requiredExtensions", - "requiredfeatures": "requiredFeatures", - "specularconstant": "specularConstant", - "specularexponent": "specularExponent", - "spreadmethod": "spreadMethod", - "startoffset": "startOffset", - "stddeviation": "stdDeviation", - "stitchtiles": "stitchTiles", - "surfacescale": "surfaceScale", - "systemlanguage": "systemLanguage", - "tablevalues": "tableValues", - "targetx": "targetX", - "targety": "targetY", - "textlength": "textLength", - "viewbox": "viewBox", - "viewtarget": "viewTarget", - "xchannelselector": "xChannelSelector", - "ychannelselector": "yChannelSelector", - "zoomandpan": "zoomAndPan", -} diff --git a/vendor/golang.org/x/net/html/node.go b/vendor/golang.org/x/net/html/node.go deleted file mode 100644 index 26b657ae..00000000 --- a/vendor/golang.org/x/net/html/node.go +++ /dev/null @@ -1,193 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package html - -import ( - "golang.org/x/net/html/atom" -) - -// A NodeType is the type of a Node. -type NodeType uint32 - -const ( - ErrorNode NodeType = iota - TextNode - DocumentNode - ElementNode - CommentNode - DoctypeNode - scopeMarkerNode -) - -// Section 12.2.3.3 says "scope markers are inserted when entering applet -// elements, buttons, object elements, marquees, table cells, and table -// captions, and are used to prevent formatting from 'leaking'". -var scopeMarker = Node{Type: scopeMarkerNode} - -// A Node consists of a NodeType and some Data (tag name for element nodes, -// content for text) and are part of a tree of Nodes. Element nodes may also -// have a Namespace and contain a slice of Attributes. Data is unescaped, so -// that it looks like "a<b" rather than "a<b". For element nodes, DataAtom -// is the atom for Data, or zero if Data is not a known tag name. -// -// An empty Namespace implies a "http://www.w3.org/1999/xhtml" namespace. -// Similarly, "math" is short for "http://www.w3.org/1998/Math/MathML", and -// "svg" is short for "http://www.w3.org/2000/svg". -type Node struct { - Parent, FirstChild, LastChild, PrevSibling, NextSibling *Node - - Type NodeType - DataAtom atom.Atom - Data string - Namespace string - Attr []Attribute -} - -// InsertBefore inserts newChild as a child of n, immediately before oldChild -// in the sequence of n's children. oldChild may be nil, in which case newChild -// is appended to the end of n's children. -// -// It will panic if newChild already has a parent or siblings. -func (n *Node) InsertBefore(newChild, oldChild *Node) { - if newChild.Parent != nil || newChild.PrevSibling != nil || newChild.NextSibling != nil { - panic("html: InsertBefore called for an attached child Node") - } - var prev, next *Node - if oldChild != nil { - prev, next = oldChild.PrevSibling, oldChild - } else { - prev = n.LastChild - } - if prev != nil { - prev.NextSibling = newChild - } else { - n.FirstChild = newChild - } - if next != nil { - next.PrevSibling = newChild - } else { - n.LastChild = newChild - } - newChild.Parent = n - newChild.PrevSibling = prev - newChild.NextSibling = next -} - -// AppendChild adds a node c as a child of n. -// -// It will panic if c already has a parent or siblings. -func (n *Node) AppendChild(c *Node) { - if c.Parent != nil || c.PrevSibling != nil || c.NextSibling != nil { - panic("html: AppendChild called for an attached child Node") - } - last := n.LastChild - if last != nil { - last.NextSibling = c - } else { - n.FirstChild = c - } - n.LastChild = c - c.Parent = n - c.PrevSibling = last -} - -// RemoveChild removes a node c that is a child of n. Afterwards, c will have -// no parent and no siblings. -// -// It will panic if c's parent is not n. -func (n *Node) RemoveChild(c *Node) { - if c.Parent != n { - panic("html: RemoveChild called for a non-child Node") - } - if n.FirstChild == c { - n.FirstChild = c.NextSibling - } - if c.NextSibling != nil { - c.NextSibling.PrevSibling = c.PrevSibling - } - if n.LastChild == c { - n.LastChild = c.PrevSibling - } - if c.PrevSibling != nil { - c.PrevSibling.NextSibling = c.NextSibling - } - c.Parent = nil - c.PrevSibling = nil - c.NextSibling = nil -} - -// reparentChildren reparents all of src's child nodes to dst. -func reparentChildren(dst, src *Node) { - for { - child := src.FirstChild - if child == nil { - break - } - src.RemoveChild(child) - dst.AppendChild(child) - } -} - -// clone returns a new node with the same type, data and attributes. -// The clone has no parent, no siblings and no children. -func (n *Node) clone() *Node { - m := &Node{ - Type: n.Type, - DataAtom: n.DataAtom, - Data: n.Data, - Attr: make([]Attribute, len(n.Attr)), - } - copy(m.Attr, n.Attr) - return m -} - -// nodeStack is a stack of nodes. -type nodeStack []*Node - -// pop pops the stack. It will panic if s is empty. -func (s *nodeStack) pop() *Node { - i := len(*s) - n := (*s)[i-1] - *s = (*s)[:i-1] - return n -} - -// top returns the most recently pushed node, or nil if s is empty. -func (s *nodeStack) top() *Node { - if i := len(*s); i > 0 { - return (*s)[i-1] - } - return nil -} - -// index returns the index of the top-most occurrence of n in the stack, or -1 -// if n is not present. -func (s *nodeStack) index(n *Node) int { - for i := len(*s) - 1; i >= 0; i-- { - if (*s)[i] == n { - return i - } - } - return -1 -} - -// insert inserts a node at the given index. -func (s *nodeStack) insert(i int, n *Node) { - (*s) = append(*s, nil) - copy((*s)[i+1:], (*s)[i:]) - (*s)[i] = n -} - -// remove removes a node from the stack. It is a no-op if n is not present. -func (s *nodeStack) remove(n *Node) { - i := s.index(n) - if i == -1 { - return - } - copy((*s)[i:], (*s)[i+1:]) - j := len(*s) - 1 - (*s)[j] = nil - *s = (*s)[:j] -} diff --git a/vendor/golang.org/x/net/html/parse.go b/vendor/golang.org/x/net/html/parse.go deleted file mode 100644 index be4b2bf5..00000000 --- a/vendor/golang.org/x/net/html/parse.go +++ /dev/null @@ -1,2094 +0,0 @@ -// Copyright 2010 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package html - -import ( - "errors" - "fmt" - "io" - "strings" - - a "golang.org/x/net/html/atom" -) - -// A parser implements the HTML5 parsing algorithm: -// https://html.spec.whatwg.org/multipage/syntax.html#tree-construction -type parser struct { - // tokenizer provides the tokens for the parser. - tokenizer *Tokenizer - // tok is the most recently read token. - tok Token - // Self-closing tags like <hr/> are treated as start tags, except that - // hasSelfClosingToken is set while they are being processed. - hasSelfClosingToken bool - // doc is the document root element. - doc *Node - // The stack of open elements (section 12.2.3.2) and active formatting - // elements (section 12.2.3.3). - oe, afe nodeStack - // Element pointers (section 12.2.3.4). - head, form *Node - // Other parsing state flags (section 12.2.3.5). - scripting, framesetOK bool - // im is the current insertion mode. - im insertionMode - // originalIM is the insertion mode to go back to after completing a text - // or inTableText insertion mode. - originalIM insertionMode - // fosterParenting is whether new elements should be inserted according to - // the foster parenting rules (section 12.2.5.3). - fosterParenting bool - // quirks is whether the parser is operating in "quirks mode." - quirks bool - // fragment is whether the parser is parsing an HTML fragment. - fragment bool - // context is the context element when parsing an HTML fragment - // (section 12.4). - context *Node -} - -func (p *parser) top() *Node { - if n := p.oe.top(); n != nil { - return n - } - return p.doc -} - -// Stop tags for use in popUntil. These come from section 12.2.3.2. -var ( - defaultScopeStopTags = map[string][]a.Atom{ - "": {a.Applet, a.Caption, a.Html, a.Table, a.Td, a.Th, a.Marquee, a.Object, a.Template}, - "math": {a.AnnotationXml, a.Mi, a.Mn, a.Mo, a.Ms, a.Mtext}, - "svg": {a.Desc, a.ForeignObject, a.Title}, - } -) - -type scope int - -const ( - defaultScope scope = iota - listItemScope - buttonScope - tableScope - tableRowScope - tableBodyScope - selectScope -) - -// popUntil pops the stack of open elements at the highest element whose tag -// is in matchTags, provided there is no higher element in the scope's stop -// tags (as defined in section 12.2.3.2). It returns whether or not there was -// such an element. If there was not, popUntil leaves the stack unchanged. -// -// For example, the set of stop tags for table scope is: "html", "table". If -// the stack was: -// ["html", "body", "font", "table", "b", "i", "u"] -// then popUntil(tableScope, "font") would return false, but -// popUntil(tableScope, "i") would return true and the stack would become: -// ["html", "body", "font", "table", "b"] -// -// If an element's tag is in both the stop tags and matchTags, then the stack -// will be popped and the function returns true (provided, of course, there was -// no higher element in the stack that was also in the stop tags). For example, -// popUntil(tableScope, "table") returns true and leaves: -// ["html", "body", "font"] -func (p *parser) popUntil(s scope, matchTags ...a.Atom) bool { - if i := p.indexOfElementInScope(s, matchTags...); i != -1 { - p.oe = p.oe[:i] - return true - } - return false -} - -// indexOfElementInScope returns the index in p.oe of the highest element whose -// tag is in matchTags that is in scope. If no matching element is in scope, it -// returns -1. -func (p *parser) indexOfElementInScope(s scope, matchTags ...a.Atom) int { - for i := len(p.oe) - 1; i >= 0; i-- { - tagAtom := p.oe[i].DataAtom - if p.oe[i].Namespace == "" { - for _, t := range matchTags { - if t == tagAtom { - return i - } - } - switch s { - case defaultScope: - // No-op. - case listItemScope: - if tagAtom == a.Ol || tagAtom == a.Ul { - return -1 - } - case buttonScope: - if tagAtom == a.Button { - return -1 - } - case tableScope: - if tagAtom == a.Html || tagAtom == a.Table { - return -1 - } - case selectScope: - if tagAtom != a.Optgroup && tagAtom != a.Option { - return -1 - } - default: - panic("unreachable") - } - } - switch s { - case defaultScope, listItemScope, buttonScope: - for _, t := range defaultScopeStopTags[p.oe[i].Namespace] { - if t == tagAtom { - return -1 - } - } - } - } - return -1 -} - -// elementInScope is like popUntil, except that it doesn't modify the stack of -// open elements. -func (p *parser) elementInScope(s scope, matchTags ...a.Atom) bool { - return p.indexOfElementInScope(s, matchTags...) != -1 -} - -// clearStackToContext pops elements off the stack of open elements until a -// scope-defined element is found. -func (p *parser) clearStackToContext(s scope) { - for i := len(p.oe) - 1; i >= 0; i-- { - tagAtom := p.oe[i].DataAtom - switch s { - case tableScope: - if tagAtom == a.Html || tagAtom == a.Table { - p.oe = p.oe[:i+1] - return - } - case tableRowScope: - if tagAtom == a.Html || tagAtom == a.Tr { - p.oe = p.oe[:i+1] - return - } - case tableBodyScope: - if tagAtom == a.Html || tagAtom == a.Tbody || tagAtom == a.Tfoot || tagAtom == a.Thead { - p.oe = p.oe[:i+1] - return - } - default: - panic("unreachable") - } - } -} - -// generateImpliedEndTags pops nodes off the stack of open elements as long as -// the top node has a tag name of dd, dt, li, option, optgroup, p, rp, or rt. -// If exceptions are specified, nodes with that name will not be popped off. -func (p *parser) generateImpliedEndTags(exceptions ...string) { - var i int -loop: - for i = len(p.oe) - 1; i >= 0; i-- { - n := p.oe[i] - if n.Type == ElementNode { - switch n.DataAtom { - case a.Dd, a.Dt, a.Li, a.Option, a.Optgroup, a.P, a.Rp, a.Rt: - for _, except := range exceptions { - if n.Data == except { - break loop - } - } - continue - } - } - break - } - - p.oe = p.oe[:i+1] -} - -// addChild adds a child node n to the top element, and pushes n onto the stack -// of open elements if it is an element node. -func (p *parser) addChild(n *Node) { - if p.shouldFosterParent() { - p.fosterParent(n) - } else { - p.top().AppendChild(n) - } - - if n.Type == ElementNode { - p.oe = append(p.oe, n) - } -} - -// shouldFosterParent returns whether the next node to be added should be -// foster parented. -func (p *parser) shouldFosterParent() bool { - if p.fosterParenting { - switch p.top().DataAtom { - case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr: - return true - } - } - return false -} - -// fosterParent adds a child node according to the foster parenting rules. -// Section 12.2.5.3, "foster parenting". -func (p *parser) fosterParent(n *Node) { - var table, parent, prev *Node - var i int - for i = len(p.oe) - 1; i >= 0; i-- { - if p.oe[i].DataAtom == a.Table { - table = p.oe[i] - break - } - } - - if table == nil { - // The foster parent is the html element. - parent = p.oe[0] - } else { - parent = table.Parent - } - if parent == nil { - parent = p.oe[i-1] - } - - if table != nil { - prev = table.PrevSibling - } else { - prev = parent.LastChild - } - if prev != nil && prev.Type == TextNode && n.Type == TextNode { - prev.Data += n.Data - return - } - - parent.InsertBefore(n, table) -} - -// addText adds text to the preceding node if it is a text node, or else it -// calls addChild with a new text node. -func (p *parser) addText(text string) { - if text == "" { - return - } - - if p.shouldFosterParent() { - p.fosterParent(&Node{ - Type: TextNode, - Data: text, - }) - return - } - - t := p.top() - if n := t.LastChild; n != nil && n.Type == TextNode { - n.Data += text - return - } - p.addChild(&Node{ - Type: TextNode, - Data: text, - }) -} - -// addElement adds a child element based on the current token. -func (p *parser) addElement() { - p.addChild(&Node{ - Type: ElementNode, - DataAtom: p.tok.DataAtom, - Data: p.tok.Data, - Attr: p.tok.Attr, - }) -} - -// Section 12.2.3.3. -func (p *parser) addFormattingElement() { - tagAtom, attr := p.tok.DataAtom, p.tok.Attr - p.addElement() - - // Implement the Noah's Ark clause, but with three per family instead of two. - identicalElements := 0 -findIdenticalElements: - for i := len(p.afe) - 1; i >= 0; i-- { - n := p.afe[i] - if n.Type == scopeMarkerNode { - break - } - if n.Type != ElementNode { - continue - } - if n.Namespace != "" { - continue - } - if n.DataAtom != tagAtom { - continue - } - if len(n.Attr) != len(attr) { - continue - } - compareAttributes: - for _, t0 := range n.Attr { - for _, t1 := range attr { - if t0.Key == t1.Key && t0.Namespace == t1.Namespace && t0.Val == t1.Val { - // Found a match for this attribute, continue with the next attribute. - continue compareAttributes - } - } - // If we get here, there is no attribute that matches a. - // Therefore the element is not identical to the new one. - continue findIdenticalElements - } - - identicalElements++ - if identicalElements >= 3 { - p.afe.remove(n) - } - } - - p.afe = append(p.afe, p.top()) -} - -// Section 12.2.3.3. -func (p *parser) clearActiveFormattingElements() { - for { - n := p.afe.pop() - if len(p.afe) == 0 || n.Type == scopeMarkerNode { - return - } - } -} - -// Section 12.2.3.3. -func (p *parser) reconstructActiveFormattingElements() { - n := p.afe.top() - if n == nil { - return - } - if n.Type == scopeMarkerNode || p.oe.index(n) != -1 { - return - } - i := len(p.afe) - 1 - for n.Type != scopeMarkerNode && p.oe.index(n) == -1 { - if i == 0 { - i = -1 - break - } - i-- - n = p.afe[i] - } - for { - i++ - clone := p.afe[i].clone() - p.addChild(clone) - p.afe[i] = clone - if i == len(p.afe)-1 { - break - } - } -} - -// Section 12.2.4. -func (p *parser) acknowledgeSelfClosingTag() { - p.hasSelfClosingToken = false -} - -// An insertion mode (section 12.2.3.1) is the state transition function from -// a particular state in the HTML5 parser's state machine. It updates the -// parser's fields depending on parser.tok (where ErrorToken means EOF). -// It returns whether the token was consumed. -type insertionMode func(*parser) bool - -// setOriginalIM sets the insertion mode to return to after completing a text or -// inTableText insertion mode. -// Section 12.2.3.1, "using the rules for". -func (p *parser) setOriginalIM() { - if p.originalIM != nil { - panic("html: bad parser state: originalIM was set twice") - } - p.originalIM = p.im -} - -// Section 12.2.3.1, "reset the insertion mode". -func (p *parser) resetInsertionMode() { - for i := len(p.oe) - 1; i >= 0; i-- { - n := p.oe[i] - if i == 0 && p.context != nil { - n = p.context - } - - switch n.DataAtom { - case a.Select: - p.im = inSelectIM - case a.Td, a.Th: - p.im = inCellIM - case a.Tr: - p.im = inRowIM - case a.Tbody, a.Thead, a.Tfoot: - p.im = inTableBodyIM - case a.Caption: - p.im = inCaptionIM - case a.Colgroup: - p.im = inColumnGroupIM - case a.Table: - p.im = inTableIM - case a.Head: - p.im = inBodyIM - case a.Body: - p.im = inBodyIM - case a.Frameset: - p.im = inFramesetIM - case a.Html: - p.im = beforeHeadIM - default: - continue - } - return - } - p.im = inBodyIM -} - -const whitespace = " \t\r\n\f" - -// Section 12.2.5.4.1. -func initialIM(p *parser) bool { - switch p.tok.Type { - case TextToken: - p.tok.Data = strings.TrimLeft(p.tok.Data, whitespace) - if len(p.tok.Data) == 0 { - // It was all whitespace, so ignore it. - return true - } - case CommentToken: - p.doc.AppendChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - return true - case DoctypeToken: - n, quirks := parseDoctype(p.tok.Data) - p.doc.AppendChild(n) - p.quirks = quirks - p.im = beforeHTMLIM - return true - } - p.quirks = true - p.im = beforeHTMLIM - return false -} - -// Section 12.2.5.4.2. -func beforeHTMLIM(p *parser) bool { - switch p.tok.Type { - case DoctypeToken: - // Ignore the token. - return true - case TextToken: - p.tok.Data = strings.TrimLeft(p.tok.Data, whitespace) - if len(p.tok.Data) == 0 { - // It was all whitespace, so ignore it. - return true - } - case StartTagToken: - if p.tok.DataAtom == a.Html { - p.addElement() - p.im = beforeHeadIM - return true - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Head, a.Body, a.Html, a.Br: - p.parseImpliedToken(StartTagToken, a.Html, a.Html.String()) - return false - default: - // Ignore the token. - return true - } - case CommentToken: - p.doc.AppendChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - return true - } - p.parseImpliedToken(StartTagToken, a.Html, a.Html.String()) - return false -} - -// Section 12.2.5.4.3. -func beforeHeadIM(p *parser) bool { - switch p.tok.Type { - case TextToken: - p.tok.Data = strings.TrimLeft(p.tok.Data, whitespace) - if len(p.tok.Data) == 0 { - // It was all whitespace, so ignore it. - return true - } - case StartTagToken: - switch p.tok.DataAtom { - case a.Head: - p.addElement() - p.head = p.top() - p.im = inHeadIM - return true - case a.Html: - return inBodyIM(p) - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Head, a.Body, a.Html, a.Br: - p.parseImpliedToken(StartTagToken, a.Head, a.Head.String()) - return false - default: - // Ignore the token. - return true - } - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - return true - case DoctypeToken: - // Ignore the token. - return true - } - - p.parseImpliedToken(StartTagToken, a.Head, a.Head.String()) - return false -} - -// Section 12.2.5.4.4. -func inHeadIM(p *parser) bool { - switch p.tok.Type { - case TextToken: - s := strings.TrimLeft(p.tok.Data, whitespace) - if len(s) < len(p.tok.Data) { - // Add the initial whitespace to the current node. - p.addText(p.tok.Data[:len(p.tok.Data)-len(s)]) - if s == "" { - return true - } - p.tok.Data = s - } - case StartTagToken: - switch p.tok.DataAtom { - case a.Html: - return inBodyIM(p) - case a.Base, a.Basefont, a.Bgsound, a.Command, a.Link, a.Meta: - p.addElement() - p.oe.pop() - p.acknowledgeSelfClosingTag() - return true - case a.Script, a.Title, a.Noscript, a.Noframes, a.Style: - p.addElement() - p.setOriginalIM() - p.im = textIM - return true - case a.Head: - // Ignore the token. - return true - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Head: - n := p.oe.pop() - if n.DataAtom != a.Head { - panic("html: bad parser state: <head> element not found, in the in-head insertion mode") - } - p.im = afterHeadIM - return true - case a.Body, a.Html, a.Br: - p.parseImpliedToken(EndTagToken, a.Head, a.Head.String()) - return false - default: - // Ignore the token. - return true - } - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - return true - case DoctypeToken: - // Ignore the token. - return true - } - - p.parseImpliedToken(EndTagToken, a.Head, a.Head.String()) - return false -} - -// Section 12.2.5.4.6. -func afterHeadIM(p *parser) bool { - switch p.tok.Type { - case TextToken: - s := strings.TrimLeft(p.tok.Data, whitespace) - if len(s) < len(p.tok.Data) { - // Add the initial whitespace to the current node. - p.addText(p.tok.Data[:len(p.tok.Data)-len(s)]) - if s == "" { - return true - } - p.tok.Data = s - } - case StartTagToken: - switch p.tok.DataAtom { - case a.Html: - return inBodyIM(p) - case a.Body: - p.addElement() - p.framesetOK = false - p.im = inBodyIM - return true - case a.Frameset: - p.addElement() - p.im = inFramesetIM - return true - case a.Base, a.Basefont, a.Bgsound, a.Link, a.Meta, a.Noframes, a.Script, a.Style, a.Title: - p.oe = append(p.oe, p.head) - defer p.oe.remove(p.head) - return inHeadIM(p) - case a.Head: - // Ignore the token. - return true - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Body, a.Html, a.Br: - // Drop down to creating an implied <body> tag. - default: - // Ignore the token. - return true - } - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - return true - case DoctypeToken: - // Ignore the token. - return true - } - - p.parseImpliedToken(StartTagToken, a.Body, a.Body.String()) - p.framesetOK = true - return false -} - -// copyAttributes copies attributes of src not found on dst to dst. -func copyAttributes(dst *Node, src Token) { - if len(src.Attr) == 0 { - return - } - attr := map[string]string{} - for _, t := range dst.Attr { - attr[t.Key] = t.Val - } - for _, t := range src.Attr { - if _, ok := attr[t.Key]; !ok { - dst.Attr = append(dst.Attr, t) - attr[t.Key] = t.Val - } - } -} - -// Section 12.2.5.4.7. -func inBodyIM(p *parser) bool { - switch p.tok.Type { - case TextToken: - d := p.tok.Data - switch n := p.oe.top(); n.DataAtom { - case a.Pre, a.Listing: - if n.FirstChild == nil { - // Ignore a newline at the start of a <pre> block. - if d != "" && d[0] == '\r' { - d = d[1:] - } - if d != "" && d[0] == '\n' { - d = d[1:] - } - } - } - d = strings.Replace(d, "\x00", "", -1) - if d == "" { - return true - } - p.reconstructActiveFormattingElements() - p.addText(d) - if p.framesetOK && strings.TrimLeft(d, whitespace) != "" { - // There were non-whitespace characters inserted. - p.framesetOK = false - } - case StartTagToken: - switch p.tok.DataAtom { - case a.Html: - copyAttributes(p.oe[0], p.tok) - case a.Base, a.Basefont, a.Bgsound, a.Command, a.Link, a.Meta, a.Noframes, a.Script, a.Style, a.Title: - return inHeadIM(p) - case a.Body: - if len(p.oe) >= 2 { - body := p.oe[1] - if body.Type == ElementNode && body.DataAtom == a.Body { - p.framesetOK = false - copyAttributes(body, p.tok) - } - } - case a.Frameset: - if !p.framesetOK || len(p.oe) < 2 || p.oe[1].DataAtom != a.Body { - // Ignore the token. - return true - } - body := p.oe[1] - if body.Parent != nil { - body.Parent.RemoveChild(body) - } - p.oe = p.oe[:1] - p.addElement() - p.im = inFramesetIM - return true - case a.Address, a.Article, a.Aside, a.Blockquote, a.Center, a.Details, a.Dir, a.Div, a.Dl, a.Fieldset, a.Figcaption, a.Figure, a.Footer, a.Header, a.Hgroup, a.Menu, a.Nav, a.Ol, a.P, a.Section, a.Summary, a.Ul: - p.popUntil(buttonScope, a.P) - p.addElement() - case a.H1, a.H2, a.H3, a.H4, a.H5, a.H6: - p.popUntil(buttonScope, a.P) - switch n := p.top(); n.DataAtom { - case a.H1, a.H2, a.H3, a.H4, a.H5, a.H6: - p.oe.pop() - } - p.addElement() - case a.Pre, a.Listing: - p.popUntil(buttonScope, a.P) - p.addElement() - // The newline, if any, will be dealt with by the TextToken case. - p.framesetOK = false - case a.Form: - if p.form == nil { - p.popUntil(buttonScope, a.P) - p.addElement() - p.form = p.top() - } - case a.Li: - p.framesetOK = false - for i := len(p.oe) - 1; i >= 0; i-- { - node := p.oe[i] - switch node.DataAtom { - case a.Li: - p.oe = p.oe[:i] - case a.Address, a.Div, a.P: - continue - default: - if !isSpecialElement(node) { - continue - } - } - break - } - p.popUntil(buttonScope, a.P) - p.addElement() - case a.Dd, a.Dt: - p.framesetOK = false - for i := len(p.oe) - 1; i >= 0; i-- { - node := p.oe[i] - switch node.DataAtom { - case a.Dd, a.Dt: - p.oe = p.oe[:i] - case a.Address, a.Div, a.P: - continue - default: - if !isSpecialElement(node) { - continue - } - } - break - } - p.popUntil(buttonScope, a.P) - p.addElement() - case a.Plaintext: - p.popUntil(buttonScope, a.P) - p.addElement() - case a.Button: - p.popUntil(defaultScope, a.Button) - p.reconstructActiveFormattingElements() - p.addElement() - p.framesetOK = false - case a.A: - for i := len(p.afe) - 1; i >= 0 && p.afe[i].Type != scopeMarkerNode; i-- { - if n := p.afe[i]; n.Type == ElementNode && n.DataAtom == a.A { - p.inBodyEndTagFormatting(a.A) - p.oe.remove(n) - p.afe.remove(n) - break - } - } - p.reconstructActiveFormattingElements() - p.addFormattingElement() - case a.B, a.Big, a.Code, a.Em, a.Font, a.I, a.S, a.Small, a.Strike, a.Strong, a.Tt, a.U: - p.reconstructActiveFormattingElements() - p.addFormattingElement() - case a.Nobr: - p.reconstructActiveFormattingElements() - if p.elementInScope(defaultScope, a.Nobr) { - p.inBodyEndTagFormatting(a.Nobr) - p.reconstructActiveFormattingElements() - } - p.addFormattingElement() - case a.Applet, a.Marquee, a.Object: - p.reconstructActiveFormattingElements() - p.addElement() - p.afe = append(p.afe, &scopeMarker) - p.framesetOK = false - case a.Table: - if !p.quirks { - p.popUntil(buttonScope, a.P) - } - p.addElement() - p.framesetOK = false - p.im = inTableIM - return true - case a.Area, a.Br, a.Embed, a.Img, a.Input, a.Keygen, a.Wbr: - p.reconstructActiveFormattingElements() - p.addElement() - p.oe.pop() - p.acknowledgeSelfClosingTag() - if p.tok.DataAtom == a.Input { - for _, t := range p.tok.Attr { - if t.Key == "type" { - if strings.ToLower(t.Val) == "hidden" { - // Skip setting framesetOK = false - return true - } - } - } - } - p.framesetOK = false - case a.Param, a.Source, a.Track: - p.addElement() - p.oe.pop() - p.acknowledgeSelfClosingTag() - case a.Hr: - p.popUntil(buttonScope, a.P) - p.addElement() - p.oe.pop() - p.acknowledgeSelfClosingTag() - p.framesetOK = false - case a.Image: - p.tok.DataAtom = a.Img - p.tok.Data = a.Img.String() - return false - case a.Isindex: - if p.form != nil { - // Ignore the token. - return true - } - action := "" - prompt := "This is a searchable index. Enter search keywords: " - attr := []Attribute{{Key: "name", Val: "isindex"}} - for _, t := range p.tok.Attr { - switch t.Key { - case "action": - action = t.Val - case "name": - // Ignore the attribute. - case "prompt": - prompt = t.Val - default: - attr = append(attr, t) - } - } - p.acknowledgeSelfClosingTag() - p.popUntil(buttonScope, a.P) - p.parseImpliedToken(StartTagToken, a.Form, a.Form.String()) - if action != "" { - p.form.Attr = []Attribute{{Key: "action", Val: action}} - } - p.parseImpliedToken(StartTagToken, a.Hr, a.Hr.String()) - p.parseImpliedToken(StartTagToken, a.Label, a.Label.String()) - p.addText(prompt) - p.addChild(&Node{ - Type: ElementNode, - DataAtom: a.Input, - Data: a.Input.String(), - Attr: attr, - }) - p.oe.pop() - p.parseImpliedToken(EndTagToken, a.Label, a.Label.String()) - p.parseImpliedToken(StartTagToken, a.Hr, a.Hr.String()) - p.parseImpliedToken(EndTagToken, a.Form, a.Form.String()) - case a.Textarea: - p.addElement() - p.setOriginalIM() - p.framesetOK = false - p.im = textIM - case a.Xmp: - p.popUntil(buttonScope, a.P) - p.reconstructActiveFormattingElements() - p.framesetOK = false - p.addElement() - p.setOriginalIM() - p.im = textIM - case a.Iframe: - p.framesetOK = false - p.addElement() - p.setOriginalIM() - p.im = textIM - case a.Noembed, a.Noscript: - p.addElement() - p.setOriginalIM() - p.im = textIM - case a.Select: - p.reconstructActiveFormattingElements() - p.addElement() - p.framesetOK = false - p.im = inSelectIM - return true - case a.Optgroup, a.Option: - if p.top().DataAtom == a.Option { - p.oe.pop() - } - p.reconstructActiveFormattingElements() - p.addElement() - case a.Rp, a.Rt: - if p.elementInScope(defaultScope, a.Ruby) { - p.generateImpliedEndTags() - } - p.addElement() - case a.Math, a.Svg: - p.reconstructActiveFormattingElements() - if p.tok.DataAtom == a.Math { - adjustAttributeNames(p.tok.Attr, mathMLAttributeAdjustments) - } else { - adjustAttributeNames(p.tok.Attr, svgAttributeAdjustments) - } - adjustForeignAttributes(p.tok.Attr) - p.addElement() - p.top().Namespace = p.tok.Data - if p.hasSelfClosingToken { - p.oe.pop() - p.acknowledgeSelfClosingTag() - } - return true - case a.Caption, a.Col, a.Colgroup, a.Frame, a.Head, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr: - // Ignore the token. - default: - p.reconstructActiveFormattingElements() - p.addElement() - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Body: - if p.elementInScope(defaultScope, a.Body) { - p.im = afterBodyIM - } - case a.Html: - if p.elementInScope(defaultScope, a.Body) { - p.parseImpliedToken(EndTagToken, a.Body, a.Body.String()) - return false - } - return true - case a.Address, a.Article, a.Aside, a.Blockquote, a.Button, a.Center, a.Details, a.Dir, a.Div, a.Dl, a.Fieldset, a.Figcaption, a.Figure, a.Footer, a.Header, a.Hgroup, a.Listing, a.Menu, a.Nav, a.Ol, a.Pre, a.Section, a.Summary, a.Ul: - p.popUntil(defaultScope, p.tok.DataAtom) - case a.Form: - node := p.form - p.form = nil - i := p.indexOfElementInScope(defaultScope, a.Form) - if node == nil || i == -1 || p.oe[i] != node { - // Ignore the token. - return true - } - p.generateImpliedEndTags() - p.oe.remove(node) - case a.P: - if !p.elementInScope(buttonScope, a.P) { - p.parseImpliedToken(StartTagToken, a.P, a.P.String()) - } - p.popUntil(buttonScope, a.P) - case a.Li: - p.popUntil(listItemScope, a.Li) - case a.Dd, a.Dt: - p.popUntil(defaultScope, p.tok.DataAtom) - case a.H1, a.H2, a.H3, a.H4, a.H5, a.H6: - p.popUntil(defaultScope, a.H1, a.H2, a.H3, a.H4, a.H5, a.H6) - case a.A, a.B, a.Big, a.Code, a.Em, a.Font, a.I, a.Nobr, a.S, a.Small, a.Strike, a.Strong, a.Tt, a.U: - p.inBodyEndTagFormatting(p.tok.DataAtom) - case a.Applet, a.Marquee, a.Object: - if p.popUntil(defaultScope, p.tok.DataAtom) { - p.clearActiveFormattingElements() - } - case a.Br: - p.tok.Type = StartTagToken - return false - default: - p.inBodyEndTagOther(p.tok.DataAtom) - } - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - } - - return true -} - -func (p *parser) inBodyEndTagFormatting(tagAtom a.Atom) { - // This is the "adoption agency" algorithm, described at - // https://html.spec.whatwg.org/multipage/syntax.html#adoptionAgency - - // TODO: this is a fairly literal line-by-line translation of that algorithm. - // Once the code successfully parses the comprehensive test suite, we should - // refactor this code to be more idiomatic. - - // Steps 1-4. The outer loop. - for i := 0; i < 8; i++ { - // Step 5. Find the formatting element. - var formattingElement *Node - for j := len(p.afe) - 1; j >= 0; j-- { - if p.afe[j].Type == scopeMarkerNode { - break - } - if p.afe[j].DataAtom == tagAtom { - formattingElement = p.afe[j] - break - } - } - if formattingElement == nil { - p.inBodyEndTagOther(tagAtom) - return - } - feIndex := p.oe.index(formattingElement) - if feIndex == -1 { - p.afe.remove(formattingElement) - return - } - if !p.elementInScope(defaultScope, tagAtom) { - // Ignore the tag. - return - } - - // Steps 9-10. Find the furthest block. - var furthestBlock *Node - for _, e := range p.oe[feIndex:] { - if isSpecialElement(e) { - furthestBlock = e - break - } - } - if furthestBlock == nil { - e := p.oe.pop() - for e != formattingElement { - e = p.oe.pop() - } - p.afe.remove(e) - return - } - - // Steps 11-12. Find the common ancestor and bookmark node. - commonAncestor := p.oe[feIndex-1] - bookmark := p.afe.index(formattingElement) - - // Step 13. The inner loop. Find the lastNode to reparent. - lastNode := furthestBlock - node := furthestBlock - x := p.oe.index(node) - // Steps 13.1-13.2 - for j := 0; j < 3; j++ { - // Step 13.3. - x-- - node = p.oe[x] - // Step 13.4 - 13.5. - if p.afe.index(node) == -1 { - p.oe.remove(node) - continue - } - // Step 13.6. - if node == formattingElement { - break - } - // Step 13.7. - clone := node.clone() - p.afe[p.afe.index(node)] = clone - p.oe[p.oe.index(node)] = clone - node = clone - // Step 13.8. - if lastNode == furthestBlock { - bookmark = p.afe.index(node) + 1 - } - // Step 13.9. - if lastNode.Parent != nil { - lastNode.Parent.RemoveChild(lastNode) - } - node.AppendChild(lastNode) - // Step 13.10. - lastNode = node - } - - // Step 14. Reparent lastNode to the common ancestor, - // or for misnested table nodes, to the foster parent. - if lastNode.Parent != nil { - lastNode.Parent.RemoveChild(lastNode) - } - switch commonAncestor.DataAtom { - case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr: - p.fosterParent(lastNode) - default: - commonAncestor.AppendChild(lastNode) - } - - // Steps 15-17. Reparent nodes from the furthest block's children - // to a clone of the formatting element. - clone := formattingElement.clone() - reparentChildren(clone, furthestBlock) - furthestBlock.AppendChild(clone) - - // Step 18. Fix up the list of active formatting elements. - if oldLoc := p.afe.index(formattingElement); oldLoc != -1 && oldLoc < bookmark { - // Move the bookmark with the rest of the list. - bookmark-- - } - p.afe.remove(formattingElement) - p.afe.insert(bookmark, clone) - - // Step 19. Fix up the stack of open elements. - p.oe.remove(formattingElement) - p.oe.insert(p.oe.index(furthestBlock)+1, clone) - } -} - -// inBodyEndTagOther performs the "any other end tag" algorithm for inBodyIM. -// "Any other end tag" handling from 12.2.5.5 The rules for parsing tokens in foreign content -// https://html.spec.whatwg.org/multipage/syntax.html#parsing-main-inforeign -func (p *parser) inBodyEndTagOther(tagAtom a.Atom) { - for i := len(p.oe) - 1; i >= 0; i-- { - if p.oe[i].DataAtom == tagAtom { - p.oe = p.oe[:i] - break - } - if isSpecialElement(p.oe[i]) { - break - } - } -} - -// Section 12.2.5.4.8. -func textIM(p *parser) bool { - switch p.tok.Type { - case ErrorToken: - p.oe.pop() - case TextToken: - d := p.tok.Data - if n := p.oe.top(); n.DataAtom == a.Textarea && n.FirstChild == nil { - // Ignore a newline at the start of a <textarea> block. - if d != "" && d[0] == '\r' { - d = d[1:] - } - if d != "" && d[0] == '\n' { - d = d[1:] - } - } - if d == "" { - return true - } - p.addText(d) - return true - case EndTagToken: - p.oe.pop() - } - p.im = p.originalIM - p.originalIM = nil - return p.tok.Type == EndTagToken -} - -// Section 12.2.5.4.9. -func inTableIM(p *parser) bool { - switch p.tok.Type { - case ErrorToken: - // Stop parsing. - return true - case TextToken: - p.tok.Data = strings.Replace(p.tok.Data, "\x00", "", -1) - switch p.oe.top().DataAtom { - case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr: - if strings.Trim(p.tok.Data, whitespace) == "" { - p.addText(p.tok.Data) - return true - } - } - case StartTagToken: - switch p.tok.DataAtom { - case a.Caption: - p.clearStackToContext(tableScope) - p.afe = append(p.afe, &scopeMarker) - p.addElement() - p.im = inCaptionIM - return true - case a.Colgroup: - p.clearStackToContext(tableScope) - p.addElement() - p.im = inColumnGroupIM - return true - case a.Col: - p.parseImpliedToken(StartTagToken, a.Colgroup, a.Colgroup.String()) - return false - case a.Tbody, a.Tfoot, a.Thead: - p.clearStackToContext(tableScope) - p.addElement() - p.im = inTableBodyIM - return true - case a.Td, a.Th, a.Tr: - p.parseImpliedToken(StartTagToken, a.Tbody, a.Tbody.String()) - return false - case a.Table: - if p.popUntil(tableScope, a.Table) { - p.resetInsertionMode() - return false - } - // Ignore the token. - return true - case a.Style, a.Script: - return inHeadIM(p) - case a.Input: - for _, t := range p.tok.Attr { - if t.Key == "type" && strings.ToLower(t.Val) == "hidden" { - p.addElement() - p.oe.pop() - return true - } - } - // Otherwise drop down to the default action. - case a.Form: - if p.form != nil { - // Ignore the token. - return true - } - p.addElement() - p.form = p.oe.pop() - case a.Select: - p.reconstructActiveFormattingElements() - switch p.top().DataAtom { - case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr: - p.fosterParenting = true - } - p.addElement() - p.fosterParenting = false - p.framesetOK = false - p.im = inSelectInTableIM - return true - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Table: - if p.popUntil(tableScope, a.Table) { - p.resetInsertionMode() - return true - } - // Ignore the token. - return true - case a.Body, a.Caption, a.Col, a.Colgroup, a.Html, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr: - // Ignore the token. - return true - } - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - return true - case DoctypeToken: - // Ignore the token. - return true - } - - p.fosterParenting = true - defer func() { p.fosterParenting = false }() - - return inBodyIM(p) -} - -// Section 12.2.5.4.11. -func inCaptionIM(p *parser) bool { - switch p.tok.Type { - case StartTagToken: - switch p.tok.DataAtom { - case a.Caption, a.Col, a.Colgroup, a.Tbody, a.Td, a.Tfoot, a.Thead, a.Tr: - if p.popUntil(tableScope, a.Caption) { - p.clearActiveFormattingElements() - p.im = inTableIM - return false - } else { - // Ignore the token. - return true - } - case a.Select: - p.reconstructActiveFormattingElements() - p.addElement() - p.framesetOK = false - p.im = inSelectInTableIM - return true - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Caption: - if p.popUntil(tableScope, a.Caption) { - p.clearActiveFormattingElements() - p.im = inTableIM - } - return true - case a.Table: - if p.popUntil(tableScope, a.Caption) { - p.clearActiveFormattingElements() - p.im = inTableIM - return false - } else { - // Ignore the token. - return true - } - case a.Body, a.Col, a.Colgroup, a.Html, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr: - // Ignore the token. - return true - } - } - return inBodyIM(p) -} - -// Section 12.2.5.4.12. -func inColumnGroupIM(p *parser) bool { - switch p.tok.Type { - case TextToken: - s := strings.TrimLeft(p.tok.Data, whitespace) - if len(s) < len(p.tok.Data) { - // Add the initial whitespace to the current node. - p.addText(p.tok.Data[:len(p.tok.Data)-len(s)]) - if s == "" { - return true - } - p.tok.Data = s - } - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - return true - case DoctypeToken: - // Ignore the token. - return true - case StartTagToken: - switch p.tok.DataAtom { - case a.Html: - return inBodyIM(p) - case a.Col: - p.addElement() - p.oe.pop() - p.acknowledgeSelfClosingTag() - return true - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Colgroup: - if p.oe.top().DataAtom != a.Html { - p.oe.pop() - p.im = inTableIM - } - return true - case a.Col: - // Ignore the token. - return true - } - } - if p.oe.top().DataAtom != a.Html { - p.oe.pop() - p.im = inTableIM - return false - } - return true -} - -// Section 12.2.5.4.13. -func inTableBodyIM(p *parser) bool { - switch p.tok.Type { - case StartTagToken: - switch p.tok.DataAtom { - case a.Tr: - p.clearStackToContext(tableBodyScope) - p.addElement() - p.im = inRowIM - return true - case a.Td, a.Th: - p.parseImpliedToken(StartTagToken, a.Tr, a.Tr.String()) - return false - case a.Caption, a.Col, a.Colgroup, a.Tbody, a.Tfoot, a.Thead: - if p.popUntil(tableScope, a.Tbody, a.Thead, a.Tfoot) { - p.im = inTableIM - return false - } - // Ignore the token. - return true - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Tbody, a.Tfoot, a.Thead: - if p.elementInScope(tableScope, p.tok.DataAtom) { - p.clearStackToContext(tableBodyScope) - p.oe.pop() - p.im = inTableIM - } - return true - case a.Table: - if p.popUntil(tableScope, a.Tbody, a.Thead, a.Tfoot) { - p.im = inTableIM - return false - } - // Ignore the token. - return true - case a.Body, a.Caption, a.Col, a.Colgroup, a.Html, a.Td, a.Th, a.Tr: - // Ignore the token. - return true - } - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - return true - } - - return inTableIM(p) -} - -// Section 12.2.5.4.14. -func inRowIM(p *parser) bool { - switch p.tok.Type { - case StartTagToken: - switch p.tok.DataAtom { - case a.Td, a.Th: - p.clearStackToContext(tableRowScope) - p.addElement() - p.afe = append(p.afe, &scopeMarker) - p.im = inCellIM - return true - case a.Caption, a.Col, a.Colgroup, a.Tbody, a.Tfoot, a.Thead, a.Tr: - if p.popUntil(tableScope, a.Tr) { - p.im = inTableBodyIM - return false - } - // Ignore the token. - return true - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Tr: - if p.popUntil(tableScope, a.Tr) { - p.im = inTableBodyIM - return true - } - // Ignore the token. - return true - case a.Table: - if p.popUntil(tableScope, a.Tr) { - p.im = inTableBodyIM - return false - } - // Ignore the token. - return true - case a.Tbody, a.Tfoot, a.Thead: - if p.elementInScope(tableScope, p.tok.DataAtom) { - p.parseImpliedToken(EndTagToken, a.Tr, a.Tr.String()) - return false - } - // Ignore the token. - return true - case a.Body, a.Caption, a.Col, a.Colgroup, a.Html, a.Td, a.Th: - // Ignore the token. - return true - } - } - - return inTableIM(p) -} - -// Section 12.2.5.4.15. -func inCellIM(p *parser) bool { - switch p.tok.Type { - case StartTagToken: - switch p.tok.DataAtom { - case a.Caption, a.Col, a.Colgroup, a.Tbody, a.Td, a.Tfoot, a.Th, a.Thead, a.Tr: - if p.popUntil(tableScope, a.Td, a.Th) { - // Close the cell and reprocess. - p.clearActiveFormattingElements() - p.im = inRowIM - return false - } - // Ignore the token. - return true - case a.Select: - p.reconstructActiveFormattingElements() - p.addElement() - p.framesetOK = false - p.im = inSelectInTableIM - return true - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Td, a.Th: - if !p.popUntil(tableScope, p.tok.DataAtom) { - // Ignore the token. - return true - } - p.clearActiveFormattingElements() - p.im = inRowIM - return true - case a.Body, a.Caption, a.Col, a.Colgroup, a.Html: - // Ignore the token. - return true - case a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr: - if !p.elementInScope(tableScope, p.tok.DataAtom) { - // Ignore the token. - return true - } - // Close the cell and reprocess. - p.popUntil(tableScope, a.Td, a.Th) - p.clearActiveFormattingElements() - p.im = inRowIM - return false - } - } - return inBodyIM(p) -} - -// Section 12.2.5.4.16. -func inSelectIM(p *parser) bool { - switch p.tok.Type { - case ErrorToken: - // Stop parsing. - return true - case TextToken: - p.addText(strings.Replace(p.tok.Data, "\x00", "", -1)) - case StartTagToken: - switch p.tok.DataAtom { - case a.Html: - return inBodyIM(p) - case a.Option: - if p.top().DataAtom == a.Option { - p.oe.pop() - } - p.addElement() - case a.Optgroup: - if p.top().DataAtom == a.Option { - p.oe.pop() - } - if p.top().DataAtom == a.Optgroup { - p.oe.pop() - } - p.addElement() - case a.Select: - p.tok.Type = EndTagToken - return false - case a.Input, a.Keygen, a.Textarea: - if p.elementInScope(selectScope, a.Select) { - p.parseImpliedToken(EndTagToken, a.Select, a.Select.String()) - return false - } - // In order to properly ignore <textarea>, we need to change the tokenizer mode. - p.tokenizer.NextIsNotRawText() - // Ignore the token. - return true - case a.Script: - return inHeadIM(p) - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Option: - if p.top().DataAtom == a.Option { - p.oe.pop() - } - case a.Optgroup: - i := len(p.oe) - 1 - if p.oe[i].DataAtom == a.Option { - i-- - } - if p.oe[i].DataAtom == a.Optgroup { - p.oe = p.oe[:i] - } - case a.Select: - if p.popUntil(selectScope, a.Select) { - p.resetInsertionMode() - } - } - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - case DoctypeToken: - // Ignore the token. - return true - } - - return true -} - -// Section 12.2.5.4.17. -func inSelectInTableIM(p *parser) bool { - switch p.tok.Type { - case StartTagToken, EndTagToken: - switch p.tok.DataAtom { - case a.Caption, a.Table, a.Tbody, a.Tfoot, a.Thead, a.Tr, a.Td, a.Th: - if p.tok.Type == StartTagToken || p.elementInScope(tableScope, p.tok.DataAtom) { - p.parseImpliedToken(EndTagToken, a.Select, a.Select.String()) - return false - } else { - // Ignore the token. - return true - } - } - } - return inSelectIM(p) -} - -// Section 12.2.5.4.18. -func afterBodyIM(p *parser) bool { - switch p.tok.Type { - case ErrorToken: - // Stop parsing. - return true - case TextToken: - s := strings.TrimLeft(p.tok.Data, whitespace) - if len(s) == 0 { - // It was all whitespace. - return inBodyIM(p) - } - case StartTagToken: - if p.tok.DataAtom == a.Html { - return inBodyIM(p) - } - case EndTagToken: - if p.tok.DataAtom == a.Html { - if !p.fragment { - p.im = afterAfterBodyIM - } - return true - } - case CommentToken: - // The comment is attached to the <html> element. - if len(p.oe) < 1 || p.oe[0].DataAtom != a.Html { - panic("html: bad parser state: <html> element not found, in the after-body insertion mode") - } - p.oe[0].AppendChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - return true - } - p.im = inBodyIM - return false -} - -// Section 12.2.5.4.19. -func inFramesetIM(p *parser) bool { - switch p.tok.Type { - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - case TextToken: - // Ignore all text but whitespace. - s := strings.Map(func(c rune) rune { - switch c { - case ' ', '\t', '\n', '\f', '\r': - return c - } - return -1 - }, p.tok.Data) - if s != "" { - p.addText(s) - } - case StartTagToken: - switch p.tok.DataAtom { - case a.Html: - return inBodyIM(p) - case a.Frameset: - p.addElement() - case a.Frame: - p.addElement() - p.oe.pop() - p.acknowledgeSelfClosingTag() - case a.Noframes: - return inHeadIM(p) - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Frameset: - if p.oe.top().DataAtom != a.Html { - p.oe.pop() - if p.oe.top().DataAtom != a.Frameset { - p.im = afterFramesetIM - return true - } - } - } - default: - // Ignore the token. - } - return true -} - -// Section 12.2.5.4.20. -func afterFramesetIM(p *parser) bool { - switch p.tok.Type { - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - case TextToken: - // Ignore all text but whitespace. - s := strings.Map(func(c rune) rune { - switch c { - case ' ', '\t', '\n', '\f', '\r': - return c - } - return -1 - }, p.tok.Data) - if s != "" { - p.addText(s) - } - case StartTagToken: - switch p.tok.DataAtom { - case a.Html: - return inBodyIM(p) - case a.Noframes: - return inHeadIM(p) - } - case EndTagToken: - switch p.tok.DataAtom { - case a.Html: - p.im = afterAfterFramesetIM - return true - } - default: - // Ignore the token. - } - return true -} - -// Section 12.2.5.4.21. -func afterAfterBodyIM(p *parser) bool { - switch p.tok.Type { - case ErrorToken: - // Stop parsing. - return true - case TextToken: - s := strings.TrimLeft(p.tok.Data, whitespace) - if len(s) == 0 { - // It was all whitespace. - return inBodyIM(p) - } - case StartTagToken: - if p.tok.DataAtom == a.Html { - return inBodyIM(p) - } - case CommentToken: - p.doc.AppendChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - return true - case DoctypeToken: - return inBodyIM(p) - } - p.im = inBodyIM - return false -} - -// Section 12.2.5.4.22. -func afterAfterFramesetIM(p *parser) bool { - switch p.tok.Type { - case CommentToken: - p.doc.AppendChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - case TextToken: - // Ignore all text but whitespace. - s := strings.Map(func(c rune) rune { - switch c { - case ' ', '\t', '\n', '\f', '\r': - return c - } - return -1 - }, p.tok.Data) - if s != "" { - p.tok.Data = s - return inBodyIM(p) - } - case StartTagToken: - switch p.tok.DataAtom { - case a.Html: - return inBodyIM(p) - case a.Noframes: - return inHeadIM(p) - } - case DoctypeToken: - return inBodyIM(p) - default: - // Ignore the token. - } - return true -} - -const whitespaceOrNUL = whitespace + "\x00" - -// Section 12.2.5.5. -func parseForeignContent(p *parser) bool { - switch p.tok.Type { - case TextToken: - if p.framesetOK { - p.framesetOK = strings.TrimLeft(p.tok.Data, whitespaceOrNUL) == "" - } - p.tok.Data = strings.Replace(p.tok.Data, "\x00", "\ufffd", -1) - p.addText(p.tok.Data) - case CommentToken: - p.addChild(&Node{ - Type: CommentNode, - Data: p.tok.Data, - }) - case StartTagToken: - b := breakout[p.tok.Data] - if p.tok.DataAtom == a.Font { - loop: - for _, attr := range p.tok.Attr { - switch attr.Key { - case "color", "face", "size": - b = true - break loop - } - } - } - if b { - for i := len(p.oe) - 1; i >= 0; i-- { - n := p.oe[i] - if n.Namespace == "" || htmlIntegrationPoint(n) || mathMLTextIntegrationPoint(n) { - p.oe = p.oe[:i+1] - break - } - } - return false - } - switch p.top().Namespace { - case "math": - adjustAttributeNames(p.tok.Attr, mathMLAttributeAdjustments) - case "svg": - // Adjust SVG tag names. The tokenizer lower-cases tag names, but - // SVG wants e.g. "foreignObject" with a capital second "O". - if x := svgTagNameAdjustments[p.tok.Data]; x != "" { - p.tok.DataAtom = a.Lookup([]byte(x)) - p.tok.Data = x - } - adjustAttributeNames(p.tok.Attr, svgAttributeAdjustments) - default: - panic("html: bad parser state: unexpected namespace") - } - adjustForeignAttributes(p.tok.Attr) - namespace := p.top().Namespace - p.addElement() - p.top().Namespace = namespace - if namespace != "" { - // Don't let the tokenizer go into raw text mode in foreign content - // (e.g. in an SVG <title> tag). - p.tokenizer.NextIsNotRawText() - } - if p.hasSelfClosingToken { - p.oe.pop() - p.acknowledgeSelfClosingTag() - } - case EndTagToken: - for i := len(p.oe) - 1; i >= 0; i-- { - if p.oe[i].Namespace == "" { - return p.im(p) - } - if strings.EqualFold(p.oe[i].Data, p.tok.Data) { - p.oe = p.oe[:i] - break - } - } - return true - default: - // Ignore the token. - } - return true -} - -// Section 12.2.5. -func (p *parser) inForeignContent() bool { - if len(p.oe) == 0 { - return false - } - n := p.oe[len(p.oe)-1] - if n.Namespace == "" { - return false - } - if mathMLTextIntegrationPoint(n) { - if p.tok.Type == StartTagToken && p.tok.DataAtom != a.Mglyph && p.tok.DataAtom != a.Malignmark { - return false - } - if p.tok.Type == TextToken { - return false - } - } - if n.Namespace == "math" && n.DataAtom == a.AnnotationXml && p.tok.Type == StartTagToken && p.tok.DataAtom == a.Svg { - return false - } - if htmlIntegrationPoint(n) && (p.tok.Type == StartTagToken || p.tok.Type == TextToken) { - return false - } - if p.tok.Type == ErrorToken { - return false - } - return true -} - -// parseImpliedToken parses a token as though it had appeared in the parser's -// input. -func (p *parser) parseImpliedToken(t TokenType, dataAtom a.Atom, data string) { - realToken, selfClosing := p.tok, p.hasSelfClosingToken - p.tok = Token{ - Type: t, - DataAtom: dataAtom, - Data: data, - } - p.hasSelfClosingToken = false - p.parseCurrentToken() - p.tok, p.hasSelfClosingToken = realToken, selfClosing -} - -// parseCurrentToken runs the current token through the parsing routines -// until it is consumed. -func (p *parser) parseCurrentToken() { - if p.tok.Type == SelfClosingTagToken { - p.hasSelfClosingToken = true - p.tok.Type = StartTagToken - } - - consumed := false - for !consumed { - if p.inForeignContent() { - consumed = parseForeignContent(p) - } else { - consumed = p.im(p) - } - } - - if p.hasSelfClosingToken { - // This is a parse error, but ignore it. - p.hasSelfClosingToken = false - } -} - -func (p *parser) parse() error { - // Iterate until EOF. Any other error will cause an early return. - var err error - for err != io.EOF { - // CDATA sections are allowed only in foreign content. - n := p.oe.top() - p.tokenizer.AllowCDATA(n != nil && n.Namespace != "") - // Read and parse the next token. - p.tokenizer.Next() - p.tok = p.tokenizer.Token() - if p.tok.Type == ErrorToken { - err = p.tokenizer.Err() - if err != nil && err != io.EOF { - return err - } - } - p.parseCurrentToken() - } - return nil -} - -// Parse returns the parse tree for the HTML from the given Reader. -// The input is assumed to be UTF-8 encoded. -func Parse(r io.Reader) (*Node, error) { - p := &parser{ - tokenizer: NewTokenizer(r), - doc: &Node{ - Type: DocumentNode, - }, - scripting: true, - framesetOK: true, - im: initialIM, - } - err := p.parse() - if err != nil { - return nil, err - } - return p.doc, nil -} - -// ParseFragment parses a fragment of HTML and returns the nodes that were -// found. If the fragment is the InnerHTML for an existing element, pass that -// element in context. -func ParseFragment(r io.Reader, context *Node) ([]*Node, error) { - contextTag := "" - if context != nil { - if context.Type != ElementNode { - return nil, errors.New("html: ParseFragment of non-element Node") - } - // The next check isn't just context.DataAtom.String() == context.Data because - // it is valid to pass an element whose tag isn't a known atom. For example, - // DataAtom == 0 and Data = "tagfromthefuture" is perfectly consistent. - if context.DataAtom != a.Lookup([]byte(context.Data)) { - return nil, fmt.Errorf("html: inconsistent Node: DataAtom=%q, Data=%q", context.DataAtom, context.Data) - } - contextTag = context.DataAtom.String() - } - p := &parser{ - tokenizer: NewTokenizerFragment(r, contextTag), - doc: &Node{ - Type: DocumentNode, - }, - scripting: true, - fragment: true, - context: context, - } - - root := &Node{ - Type: ElementNode, - DataAtom: a.Html, - Data: a.Html.String(), - } - p.doc.AppendChild(root) - p.oe = nodeStack{root} - p.resetInsertionMode() - - for n := context; n != nil; n = n.Parent { - if n.Type == ElementNode && n.DataAtom == a.Form { - p.form = n - break - } - } - - err := p.parse() - if err != nil { - return nil, err - } - - parent := p.doc - if context != nil { - parent = root - } - - var result []*Node - for c := parent.FirstChild; c != nil; { - next := c.NextSibling - parent.RemoveChild(c) - result = append(result, c) - c = next - } - return result, nil -} diff --git a/vendor/golang.org/x/net/html/render.go b/vendor/golang.org/x/net/html/render.go deleted file mode 100644 index d34564f4..00000000 --- a/vendor/golang.org/x/net/html/render.go +++ /dev/null @@ -1,271 +0,0 @@ -// Copyright 2011 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package html - -import ( - "bufio" - "errors" - "fmt" - "io" - "strings" -) - -type writer interface { - io.Writer - io.ByteWriter - WriteString(string) (int, error) -} - -// Render renders the parse tree n to the given writer. -// -// Rendering is done on a 'best effort' basis: calling Parse on the output of -// Render will always result in something similar to the original tree, but it -// is not necessarily an exact clone unless the original tree was 'well-formed'. -// 'Well-formed' is not easily specified; the HTML5 specification is -// complicated. -// -// Calling Parse on arbitrary input typically results in a 'well-formed' parse -// tree. However, it is possible for Parse to yield a 'badly-formed' parse tree. -// For example, in a 'well-formed' parse tree, no <a> element is a child of -// another <a> element: parsing "<a><a>" results in two sibling elements. -// Similarly, in a 'well-formed' parse tree, no <a> element is a child of a -// <table> element: parsing "<p><table><a>" results in a <p> with two sibling -// children; the <a> is reparented to the <table>'s parent. However, calling -// Parse on "<a><table><a>" does not return an error, but the result has an <a> -// element with an <a> child, and is therefore not 'well-formed'. -// -// Programmatically constructed trees are typically also 'well-formed', but it -// is possible to construct a tree that looks innocuous but, when rendered and -// re-parsed, results in a different tree. A simple example is that a solitary -// text node would become a tree containing <html>, <head> and <body> elements. -// Another example is that the programmatic equivalent of "a<head>b</head>c" -// becomes "<html><head><head/><body>abc</body></html>". -func Render(w io.Writer, n *Node) error { - if x, ok := w.(writer); ok { - return render(x, n) - } - buf := bufio.NewWriter(w) - if err := render(buf, n); err != nil { - return err - } - return buf.Flush() -} - -// plaintextAbort is returned from render1 when a <plaintext> element -// has been rendered. No more end tags should be rendered after that. -var plaintextAbort = errors.New("html: internal error (plaintext abort)") - -func render(w writer, n *Node) error { - err := render1(w, n) - if err == plaintextAbort { - err = nil - } - return err -} - -func render1(w writer, n *Node) error { - // Render non-element nodes; these are the easy cases. - switch n.Type { - case ErrorNode: - return errors.New("html: cannot render an ErrorNode node") - case TextNode: - return escape(w, n.Data) - case DocumentNode: - for c := n.FirstChild; c != nil; c = c.NextSibling { - if err := render1(w, c); err != nil { - return err - } - } - return nil - case ElementNode: - // No-op. - case CommentNode: - if _, err := w.WriteString("<!--"); err != nil { - return err - } - if _, err := w.WriteString(n.Data); err != nil { - return err - } - if _, err := w.WriteString("-->"); err != nil { - return err - } - return nil - case DoctypeNode: - if _, err := w.WriteString("<!DOCTYPE "); err != nil { - return err - } - if _, err := w.WriteString(n.Data); err != nil { - return err - } - if n.Attr != nil { - var p, s string - for _, a := range n.Attr { - switch a.Key { - case "public": - p = a.Val - case "system": - s = a.Val - } - } - if p != "" { - if _, err := w.WriteString(" PUBLIC "); err != nil { - return err - } - if err := writeQuoted(w, p); err != nil { - return err - } - if s != "" { - if err := w.WriteByte(' '); err != nil { - return err - } - if err := writeQuoted(w, s); err != nil { - return err - } - } - } else if s != "" { - if _, err := w.WriteString(" SYSTEM "); err != nil { - return err - } - if err := writeQuoted(w, s); err != nil { - return err - } - } - } - return w.WriteByte('>') - default: - return errors.New("html: unknown node type") - } - - // Render the <xxx> opening tag. - if err := w.WriteByte('<'); err != nil { - return err - } - if _, err := w.WriteString(n.Data); err != nil { - return err - } - for _, a := range n.Attr { - if err := w.WriteByte(' '); err != nil { - return err - } - if a.Namespace != "" { - if _, err := w.WriteString(a.Namespace); err != nil { - return err - } - if err := w.WriteByte(':'); err != nil { - return err - } - } - if _, err := w.WriteString(a.Key); err != nil { - return err - } - if _, err := w.WriteString(`="`); err != nil { - return err - } - if err := escape(w, a.Val); err != nil { - return err - } - if err := w.WriteByte('"'); err != nil { - return err - } - } - if voidElements[n.Data] { - if n.FirstChild != nil { - return fmt.Errorf("html: void element <%s> has child nodes", n.Data) - } - _, err := w.WriteString("/>") - return err - } - if err := w.WriteByte('>'); err != nil { - return err - } - - // Add initial newline where there is danger of a newline beging ignored. - if c := n.FirstChild; c != nil && c.Type == TextNode && strings.HasPrefix(c.Data, "\n") { - switch n.Data { - case "pre", "listing", "textarea": - if err := w.WriteByte('\n'); err != nil { - return err - } - } - } - - // Render any child nodes. - switch n.Data { - case "iframe", "noembed", "noframes", "noscript", "plaintext", "script", "style", "xmp": - for c := n.FirstChild; c != nil; c = c.NextSibling { - if c.Type == TextNode { - if _, err := w.WriteString(c.Data); err != nil { - return err - } - } else { - if err := render1(w, c); err != nil { - return err - } - } - } - if n.Data == "plaintext" { - // Don't render anything else. <plaintext> must be the - // last element in the file, with no closing tag. - return plaintextAbort - } - default: - for c := n.FirstChild; c != nil; c = c.NextSibling { - if err := render1(w, c); err != nil { - return err - } - } - } - - // Render the </xxx> closing tag. - if _, err := w.WriteString("</"); err != nil { - return err - } - if _, err := w.WriteString(n.Data); err != nil { - return err - } - return w.WriteByte('>') -} - -// writeQuoted writes s to w surrounded by quotes. Normally it will use double -// quotes, but if s contains a double quote, it will use single quotes. -// It is used for writing the identifiers in a doctype declaration. -// In valid HTML, they can't contain both types of quotes. -func writeQuoted(w writer, s string) error { - var q byte = '"' - if strings.Contains(s, `"`) { - q = '\'' - } - if err := w.WriteByte(q); err != nil { - return err - } - if _, err := w.WriteString(s); err != nil { - return err - } - if err := w.WriteByte(q); err != nil { - return err - } - return nil -} - -// Section 12.1.2, "Elements", gives this list of void elements. Void elements -// are those that can't have any contents. -var voidElements = map[string]bool{ - "area": true, - "base": true, - "br": true, - "col": true, - "command": true, - "embed": true, - "hr": true, - "img": true, - "input": true, - "keygen": true, - "link": true, - "meta": true, - "param": true, - "source": true, - "track": true, - "wbr": true, -} diff --git a/vendor/golang.org/x/net/html/token.go b/vendor/golang.org/x/net/html/token.go deleted file mode 100644 index 893e272a..00000000 --- a/vendor/golang.org/x/net/html/token.go +++ /dev/null @@ -1,1219 +0,0 @@ -// Copyright 2010 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package html - -import ( - "bytes" - "errors" - "io" - "strconv" - "strings" - - "golang.org/x/net/html/atom" -) - -// A TokenType is the type of a Token. -type TokenType uint32 - -const ( - // ErrorToken means that an error occurred during tokenization. - ErrorToken TokenType = iota - // TextToken means a text node. - TextToken - // A StartTagToken looks like <a>. - StartTagToken - // An EndTagToken looks like </a>. - EndTagToken - // A SelfClosingTagToken tag looks like <br/>. - SelfClosingTagToken - // A CommentToken looks like <!--x-->. - CommentToken - // A DoctypeToken looks like <!DOCTYPE x> - DoctypeToken -) - -// ErrBufferExceeded means that the buffering limit was exceeded. -var ErrBufferExceeded = errors.New("max buffer exceeded") - -// String returns a string representation of the TokenType. -func (t TokenType) String() string { - switch t { - case ErrorToken: - return "Error" - case TextToken: - return "Text" - case StartTagToken: - return "StartTag" - case EndTagToken: - return "EndTag" - case SelfClosingTagToken: - return "SelfClosingTag" - case CommentToken: - return "Comment" - case DoctypeToken: - return "Doctype" - } - return "Invalid(" + strconv.Itoa(int(t)) + ")" -} - -// An Attribute is an attribute namespace-key-value triple. Namespace is -// non-empty for foreign attributes like xlink, Key is alphabetic (and hence -// does not contain escapable characters like '&', '<' or '>'), and Val is -// unescaped (it looks like "a<b" rather than "a<b"). -// -// Namespace is only used by the parser, not the tokenizer. -type Attribute struct { - Namespace, Key, Val string -} - -// A Token consists of a TokenType and some Data (tag name for start and end -// tags, content for text, comments and doctypes). A tag Token may also contain -// a slice of Attributes. Data is unescaped for all Tokens (it looks like "a<b" -// rather than "a<b"). For tag Tokens, DataAtom is the atom for Data, or -// zero if Data is not a known tag name. -type Token struct { - Type TokenType - DataAtom atom.Atom - Data string - Attr []Attribute -} - -// tagString returns a string representation of a tag Token's Data and Attr. -func (t Token) tagString() string { - if len(t.Attr) == 0 { - return t.Data - } - buf := bytes.NewBufferString(t.Data) - for _, a := range t.Attr { - buf.WriteByte(' ') - buf.WriteString(a.Key) - buf.WriteString(`="`) - escape(buf, a.Val) - buf.WriteByte('"') - } - return buf.String() -} - -// String returns a string representation of the Token. -func (t Token) String() string { - switch t.Type { - case ErrorToken: - return "" - case TextToken: - return EscapeString(t.Data) - case StartTagToken: - return "<" + t.tagString() + ">" - case EndTagToken: - return "</" + t.tagString() + ">" - case SelfClosingTagToken: - return "<" + t.tagString() + "/>" - case CommentToken: - return "<!--" + t.Data + "-->" - case DoctypeToken: - return "<!DOCTYPE " + t.Data + ">" - } - return "Invalid(" + strconv.Itoa(int(t.Type)) + ")" -} - -// span is a range of bytes in a Tokenizer's buffer. The start is inclusive, -// the end is exclusive. -type span struct { - start, end int -} - -// A Tokenizer returns a stream of HTML Tokens. -type Tokenizer struct { - // r is the source of the HTML text. - r io.Reader - // tt is the TokenType of the current token. - tt TokenType - // err is the first error encountered during tokenization. It is possible - // for tt != Error && err != nil to hold: this means that Next returned a - // valid token but the subsequent Next call will return an error token. - // For example, if the HTML text input was just "plain", then the first - // Next call would set z.err to io.EOF but return a TextToken, and all - // subsequent Next calls would return an ErrorToken. - // err is never reset. Once it becomes non-nil, it stays non-nil. - err error - // readErr is the error returned by the io.Reader r. It is separate from - // err because it is valid for an io.Reader to return (n int, err1 error) - // such that n > 0 && err1 != nil, and callers should always process the - // n > 0 bytes before considering the error err1. - readErr error - // buf[raw.start:raw.end] holds the raw bytes of the current token. - // buf[raw.end:] is buffered input that will yield future tokens. - raw span - buf []byte - // maxBuf limits the data buffered in buf. A value of 0 means unlimited. - maxBuf int - // buf[data.start:data.end] holds the raw bytes of the current token's data: - // a text token's text, a tag token's tag name, etc. - data span - // pendingAttr is the attribute key and value currently being tokenized. - // When complete, pendingAttr is pushed onto attr. nAttrReturned is - // incremented on each call to TagAttr. - pendingAttr [2]span - attr [][2]span - nAttrReturned int - // rawTag is the "script" in "</script>" that closes the next token. If - // non-empty, the subsequent call to Next will return a raw or RCDATA text - // token: one that treats "<p>" as text instead of an element. - // rawTag's contents are lower-cased. - rawTag string - // textIsRaw is whether the current text token's data is not escaped. - textIsRaw bool - // convertNUL is whether NUL bytes in the current token's data should - // be converted into \ufffd replacement characters. - convertNUL bool - // allowCDATA is whether CDATA sections are allowed in the current context. - allowCDATA bool -} - -// AllowCDATA sets whether or not the tokenizer recognizes <![CDATA[foo]]> as -// the text "foo". The default value is false, which means to recognize it as -// a bogus comment "<!-- [CDATA[foo]] -->" instead. -// -// Strictly speaking, an HTML5 compliant tokenizer should allow CDATA if and -// only if tokenizing foreign content, such as MathML and SVG. However, -// tracking foreign-contentness is difficult to do purely in the tokenizer, -// as opposed to the parser, due to HTML integration points: an <svg> element -// can contain a <foreignObject> that is foreign-to-SVG but not foreign-to- -// HTML. For strict compliance with the HTML5 tokenization algorithm, it is the -// responsibility of the user of a tokenizer to call AllowCDATA as appropriate. -// In practice, if using the tokenizer without caring whether MathML or SVG -// CDATA is text or comments, such as tokenizing HTML to find all the anchor -// text, it is acceptable to ignore this responsibility. -func (z *Tokenizer) AllowCDATA(allowCDATA bool) { - z.allowCDATA = allowCDATA -} - -// NextIsNotRawText instructs the tokenizer that the next token should not be -// considered as 'raw text'. Some elements, such as script and title elements, -// normally require the next token after the opening tag to be 'raw text' that -// has no child elements. For example, tokenizing "<title>a<b>c</b>d</title>" -// yields a start tag token for "<title>", a text token for "a<b>c</b>d", and -// an end tag token for "</title>". There are no distinct start tag or end tag -// tokens for the "<b>" and "</b>". -// -// This tokenizer implementation will generally look for raw text at the right -// times. Strictly speaking, an HTML5 compliant tokenizer should not look for -// raw text if in foreign content: <title> generally needs raw text, but a -// <title> inside an <svg> does not. Another example is that a <textarea> -// generally needs raw text, but a <textarea> is not allowed as an immediate -// child of a <select>; in normal parsing, a <textarea> implies </select>, but -// one cannot close the implicit element when parsing a <select>'s InnerHTML. -// Similarly to AllowCDATA, tracking the correct moment to override raw-text- -// ness is difficult to do purely in the tokenizer, as opposed to the parser. -// For strict compliance with the HTML5 tokenization algorithm, it is the -// responsibility of the user of a tokenizer to call NextIsNotRawText as -// appropriate. In practice, like AllowCDATA, it is acceptable to ignore this -// responsibility for basic usage. -// -// Note that this 'raw text' concept is different from the one offered by the -// Tokenizer.Raw method. -func (z *Tokenizer) NextIsNotRawText() { - z.rawTag = "" -} - -// Err returns the error associated with the most recent ErrorToken token. -// This is typically io.EOF, meaning the end of tokenization. -func (z *Tokenizer) Err() error { - if z.tt != ErrorToken { - return nil - } - return z.err -} - -// readByte returns the next byte from the input stream, doing a buffered read -// from z.r into z.buf if necessary. z.buf[z.raw.start:z.raw.end] remains a contiguous byte -// slice that holds all the bytes read so far for the current token. -// It sets z.err if the underlying reader returns an error. -// Pre-condition: z.err == nil. -func (z *Tokenizer) readByte() byte { - if z.raw.end >= len(z.buf) { - // Our buffer is exhausted and we have to read from z.r. Check if the - // previous read resulted in an error. - if z.readErr != nil { - z.err = z.readErr - return 0 - } - // We copy z.buf[z.raw.start:z.raw.end] to the beginning of z.buf. If the length - // z.raw.end - z.raw.start is more than half the capacity of z.buf, then we - // allocate a new buffer before the copy. - c := cap(z.buf) - d := z.raw.end - z.raw.start - var buf1 []byte - if 2*d > c { - buf1 = make([]byte, d, 2*c) - } else { - buf1 = z.buf[:d] - } - copy(buf1, z.buf[z.raw.start:z.raw.end]) - if x := z.raw.start; x != 0 { - // Adjust the data/attr spans to refer to the same contents after the copy. - z.data.start -= x - z.data.end -= x - z.pendingAttr[0].start -= x - z.pendingAttr[0].end -= x - z.pendingAttr[1].start -= x - z.pendingAttr[1].end -= x - for i := range z.attr { - z.attr[i][0].start -= x - z.attr[i][0].end -= x - z.attr[i][1].start -= x - z.attr[i][1].end -= x - } - } - z.raw.start, z.raw.end, z.buf = 0, d, buf1[:d] - // Now that we have copied the live bytes to the start of the buffer, - // we read from z.r into the remainder. - var n int - n, z.readErr = readAtLeastOneByte(z.r, buf1[d:cap(buf1)]) - if n == 0 { - z.err = z.readErr - return 0 - } - z.buf = buf1[:d+n] - } - x := z.buf[z.raw.end] - z.raw.end++ - if z.maxBuf > 0 && z.raw.end-z.raw.start >= z.maxBuf { - z.err = ErrBufferExceeded - return 0 - } - return x -} - -// Buffered returns a slice containing data buffered but not yet tokenized. -func (z *Tokenizer) Buffered() []byte { - return z.buf[z.raw.end:] -} - -// readAtLeastOneByte wraps an io.Reader so that reading cannot return (0, nil). -// It returns io.ErrNoProgress if the underlying r.Read method returns (0, nil) -// too many times in succession. -func readAtLeastOneByte(r io.Reader, b []byte) (int, error) { - for i := 0; i < 100; i++ { - n, err := r.Read(b) - if n != 0 || err != nil { - return n, err - } - } - return 0, io.ErrNoProgress -} - -// skipWhiteSpace skips past any white space. -func (z *Tokenizer) skipWhiteSpace() { - if z.err != nil { - return - } - for { - c := z.readByte() - if z.err != nil { - return - } - switch c { - case ' ', '\n', '\r', '\t', '\f': - // No-op. - default: - z.raw.end-- - return - } - } -} - -// readRawOrRCDATA reads until the next "</foo>", where "foo" is z.rawTag and -// is typically something like "script" or "textarea". -func (z *Tokenizer) readRawOrRCDATA() { - if z.rawTag == "script" { - z.readScript() - z.textIsRaw = true - z.rawTag = "" - return - } -loop: - for { - c := z.readByte() - if z.err != nil { - break loop - } - if c != '<' { - continue loop - } - c = z.readByte() - if z.err != nil { - break loop - } - if c != '/' { - continue loop - } - if z.readRawEndTag() || z.err != nil { - break loop - } - } - z.data.end = z.raw.end - // A textarea's or title's RCDATA can contain escaped entities. - z.textIsRaw = z.rawTag != "textarea" && z.rawTag != "title" - z.rawTag = "" -} - -// readRawEndTag attempts to read a tag like "</foo>", where "foo" is z.rawTag. -// If it succeeds, it backs up the input position to reconsume the tag and -// returns true. Otherwise it returns false. The opening "</" has already been -// consumed. -func (z *Tokenizer) readRawEndTag() bool { - for i := 0; i < len(z.rawTag); i++ { - c := z.readByte() - if z.err != nil { - return false - } - if c != z.rawTag[i] && c != z.rawTag[i]-('a'-'A') { - z.raw.end-- - return false - } - } - c := z.readByte() - if z.err != nil { - return false - } - switch c { - case ' ', '\n', '\r', '\t', '\f', '/', '>': - // The 3 is 2 for the leading "</" plus 1 for the trailing character c. - z.raw.end -= 3 + len(z.rawTag) - return true - } - z.raw.end-- - return false -} - -// readScript reads until the next </script> tag, following the byzantine -// rules for escaping/hiding the closing tag. -func (z *Tokenizer) readScript() { - defer func() { - z.data.end = z.raw.end - }() - var c byte - -scriptData: - c = z.readByte() - if z.err != nil { - return - } - if c == '<' { - goto scriptDataLessThanSign - } - goto scriptData - -scriptDataLessThanSign: - c = z.readByte() - if z.err != nil { - return - } - switch c { - case '/': - goto scriptDataEndTagOpen - case '!': - goto scriptDataEscapeStart - } - z.raw.end-- - goto scriptData - -scriptDataEndTagOpen: - if z.readRawEndTag() || z.err != nil { - return - } - goto scriptData - -scriptDataEscapeStart: - c = z.readByte() - if z.err != nil { - return - } - if c == '-' { - goto scriptDataEscapeStartDash - } - z.raw.end-- - goto scriptData - -scriptDataEscapeStartDash: - c = z.readByte() - if z.err != nil { - return - } - if c == '-' { - goto scriptDataEscapedDashDash - } - z.raw.end-- - goto scriptData - -scriptDataEscaped: - c = z.readByte() - if z.err != nil { - return - } - switch c { - case '-': - goto scriptDataEscapedDash - case '<': - goto scriptDataEscapedLessThanSign - } - goto scriptDataEscaped - -scriptDataEscapedDash: - c = z.readByte() - if z.err != nil { - return - } - switch c { - case '-': - goto scriptDataEscapedDashDash - case '<': - goto scriptDataEscapedLessThanSign - } - goto scriptDataEscaped - -scriptDataEscapedDashDash: - c = z.readByte() - if z.err != nil { - return - } - switch c { - case '-': - goto scriptDataEscapedDashDash - case '<': - goto scriptDataEscapedLessThanSign - case '>': - goto scriptData - } - goto scriptDataEscaped - -scriptDataEscapedLessThanSign: - c = z.readByte() - if z.err != nil { - return - } - if c == '/' { - goto scriptDataEscapedEndTagOpen - } - if 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' { - goto scriptDataDoubleEscapeStart - } - z.raw.end-- - goto scriptData - -scriptDataEscapedEndTagOpen: - if z.readRawEndTag() || z.err != nil { - return - } - goto scriptDataEscaped - -scriptDataDoubleEscapeStart: - z.raw.end-- - for i := 0; i < len("script"); i++ { - c = z.readByte() - if z.err != nil { - return - } - if c != "script"[i] && c != "SCRIPT"[i] { - z.raw.end-- - goto scriptDataEscaped - } - } - c = z.readByte() - if z.err != nil { - return - } - switch c { - case ' ', '\n', '\r', '\t', '\f', '/', '>': - goto scriptDataDoubleEscaped - } - z.raw.end-- - goto scriptDataEscaped - -scriptDataDoubleEscaped: - c = z.readByte() - if z.err != nil { - return - } - switch c { - case '-': - goto scriptDataDoubleEscapedDash - case '<': - goto scriptDataDoubleEscapedLessThanSign - } - goto scriptDataDoubleEscaped - -scriptDataDoubleEscapedDash: - c = z.readByte() - if z.err != nil { - return - } - switch c { - case '-': - goto scriptDataDoubleEscapedDashDash - case '<': - goto scriptDataDoubleEscapedLessThanSign - } - goto scriptDataDoubleEscaped - -scriptDataDoubleEscapedDashDash: - c = z.readByte() - if z.err != nil { - return - } - switch c { - case '-': - goto scriptDataDoubleEscapedDashDash - case '<': - goto scriptDataDoubleEscapedLessThanSign - case '>': - goto scriptData - } - goto scriptDataDoubleEscaped - -scriptDataDoubleEscapedLessThanSign: - c = z.readByte() - if z.err != nil { - return - } - if c == '/' { - goto scriptDataDoubleEscapeEnd - } - z.raw.end-- - goto scriptDataDoubleEscaped - -scriptDataDoubleEscapeEnd: - if z.readRawEndTag() { - z.raw.end += len("</script>") - goto scriptDataEscaped - } - if z.err != nil { - return - } - goto scriptDataDoubleEscaped -} - -// readComment reads the next comment token starting with "<!--". The opening -// "<!--" has already been consumed. -func (z *Tokenizer) readComment() { - z.data.start = z.raw.end - defer func() { - if z.data.end < z.data.start { - // It's a comment with no data, like <!-->. - z.data.end = z.data.start - } - }() - for dashCount := 2; ; { - c := z.readByte() - if z.err != nil { - // Ignore up to two dashes at EOF. - if dashCount > 2 { - dashCount = 2 - } - z.data.end = z.raw.end - dashCount - return - } - switch c { - case '-': - dashCount++ - continue - case '>': - if dashCount >= 2 { - z.data.end = z.raw.end - len("-->") - return - } - case '!': - if dashCount >= 2 { - c = z.readByte() - if z.err != nil { - z.data.end = z.raw.end - return - } - if c == '>' { - z.data.end = z.raw.end - len("--!>") - return - } - } - } - dashCount = 0 - } -} - -// readUntilCloseAngle reads until the next ">". -func (z *Tokenizer) readUntilCloseAngle() { - z.data.start = z.raw.end - for { - c := z.readByte() - if z.err != nil { - z.data.end = z.raw.end - return - } - if c == '>' { - z.data.end = z.raw.end - len(">") - return - } - } -} - -// readMarkupDeclaration reads the next token starting with "<!". It might be -// a "<!--comment-->", a "<!DOCTYPE foo>", a "<![CDATA[section]]>" or -// "<!a bogus comment". The opening "<!" has already been consumed. -func (z *Tokenizer) readMarkupDeclaration() TokenType { - z.data.start = z.raw.end - var c [2]byte - for i := 0; i < 2; i++ { - c[i] = z.readByte() - if z.err != nil { - z.data.end = z.raw.end - return CommentToken - } - } - if c[0] == '-' && c[1] == '-' { - z.readComment() - return CommentToken - } - z.raw.end -= 2 - if z.readDoctype() { - return DoctypeToken - } - if z.allowCDATA && z.readCDATA() { - z.convertNUL = true - return TextToken - } - // It's a bogus comment. - z.readUntilCloseAngle() - return CommentToken -} - -// readDoctype attempts to read a doctype declaration and returns true if -// successful. The opening "<!" has already been consumed. -func (z *Tokenizer) readDoctype() bool { - const s = "DOCTYPE" - for i := 0; i < len(s); i++ { - c := z.readByte() - if z.err != nil { - z.data.end = z.raw.end - return false - } - if c != s[i] && c != s[i]+('a'-'A') { - // Back up to read the fragment of "DOCTYPE" again. - z.raw.end = z.data.start - return false - } - } - if z.skipWhiteSpace(); z.err != nil { - z.data.start = z.raw.end - z.data.end = z.raw.end - return true - } - z.readUntilCloseAngle() - return true -} - -// readCDATA attempts to read a CDATA section and returns true if -// successful. The opening "<!" has already been consumed. -func (z *Tokenizer) readCDATA() bool { - const s = "[CDATA[" - for i := 0; i < len(s); i++ { - c := z.readByte() - if z.err != nil { - z.data.end = z.raw.end - return false - } - if c != s[i] { - // Back up to read the fragment of "[CDATA[" again. - z.raw.end = z.data.start - return false - } - } - z.data.start = z.raw.end - brackets := 0 - for { - c := z.readByte() - if z.err != nil { - z.data.end = z.raw.end - return true - } - switch c { - case ']': - brackets++ - case '>': - if brackets >= 2 { - z.data.end = z.raw.end - len("]]>") - return true - } - brackets = 0 - default: - brackets = 0 - } - } -} - -// startTagIn returns whether the start tag in z.buf[z.data.start:z.data.end] -// case-insensitively matches any element of ss. -func (z *Tokenizer) startTagIn(ss ...string) bool { -loop: - for _, s := range ss { - if z.data.end-z.data.start != len(s) { - continue loop - } - for i := 0; i < len(s); i++ { - c := z.buf[z.data.start+i] - if 'A' <= c && c <= 'Z' { - c += 'a' - 'A' - } - if c != s[i] { - continue loop - } - } - return true - } - return false -} - -// readStartTag reads the next start tag token. The opening "<a" has already -// been consumed, where 'a' means anything in [A-Za-z]. -func (z *Tokenizer) readStartTag() TokenType { - z.readTag(true) - if z.err != nil { - return ErrorToken - } - // Several tags flag the tokenizer's next token as raw. - c, raw := z.buf[z.data.start], false - if 'A' <= c && c <= 'Z' { - c += 'a' - 'A' - } - switch c { - case 'i': - raw = z.startTagIn("iframe") - case 'n': - raw = z.startTagIn("noembed", "noframes", "noscript") - case 'p': - raw = z.startTagIn("plaintext") - case 's': - raw = z.startTagIn("script", "style") - case 't': - raw = z.startTagIn("textarea", "title") - case 'x': - raw = z.startTagIn("xmp") - } - if raw { - z.rawTag = strings.ToLower(string(z.buf[z.data.start:z.data.end])) - } - // Look for a self-closing token like "<br/>". - if z.err == nil && z.buf[z.raw.end-2] == '/' { - return SelfClosingTagToken - } - return StartTagToken -} - -// readTag reads the next tag token and its attributes. If saveAttr, those -// attributes are saved in z.attr, otherwise z.attr is set to an empty slice. -// The opening "<a" or "</a" has already been consumed, where 'a' means anything -// in [A-Za-z]. -func (z *Tokenizer) readTag(saveAttr bool) { - z.attr = z.attr[:0] - z.nAttrReturned = 0 - // Read the tag name and attribute key/value pairs. - z.readTagName() - if z.skipWhiteSpace(); z.err != nil { - return - } - for { - c := z.readByte() - if z.err != nil || c == '>' { - break - } - z.raw.end-- - z.readTagAttrKey() - z.readTagAttrVal() - // Save pendingAttr if saveAttr and that attribute has a non-empty key. - if saveAttr && z.pendingAttr[0].start != z.pendingAttr[0].end { - z.attr = append(z.attr, z.pendingAttr) - } - if z.skipWhiteSpace(); z.err != nil { - break - } - } -} - -// readTagName sets z.data to the "div" in "<div k=v>". The reader (z.raw.end) -// is positioned such that the first byte of the tag name (the "d" in "<div") -// has already been consumed. -func (z *Tokenizer) readTagName() { - z.data.start = z.raw.end - 1 - for { - c := z.readByte() - if z.err != nil { - z.data.end = z.raw.end - return - } - switch c { - case ' ', '\n', '\r', '\t', '\f': - z.data.end = z.raw.end - 1 - return - case '/', '>': - z.raw.end-- - z.data.end = z.raw.end - return - } - } -} - -// readTagAttrKey sets z.pendingAttr[0] to the "k" in "<div k=v>". -// Precondition: z.err == nil. -func (z *Tokenizer) readTagAttrKey() { - z.pendingAttr[0].start = z.raw.end - for { - c := z.readByte() - if z.err != nil { - z.pendingAttr[0].end = z.raw.end - return - } - switch c { - case ' ', '\n', '\r', '\t', '\f', '/': - z.pendingAttr[0].end = z.raw.end - 1 - return - case '=', '>': - z.raw.end-- - z.pendingAttr[0].end = z.raw.end - return - } - } -} - -// readTagAttrVal sets z.pendingAttr[1] to the "v" in "<div k=v>". -func (z *Tokenizer) readTagAttrVal() { - z.pendingAttr[1].start = z.raw.end - z.pendingAttr[1].end = z.raw.end - if z.skipWhiteSpace(); z.err != nil { - return - } - c := z.readByte() - if z.err != nil { - return - } - if c != '=' { - z.raw.end-- - return - } - if z.skipWhiteSpace(); z.err != nil { - return - } - quote := z.readByte() - if z.err != nil { - return - } - switch quote { - case '>': - z.raw.end-- - return - - case '\'', '"': - z.pendingAttr[1].start = z.raw.end - for { - c := z.readByte() - if z.err != nil { - z.pendingAttr[1].end = z.raw.end - return - } - if c == quote { - z.pendingAttr[1].end = z.raw.end - 1 - return - } - } - - default: - z.pendingAttr[1].start = z.raw.end - 1 - for { - c := z.readByte() - if z.err != nil { - z.pendingAttr[1].end = z.raw.end - return - } - switch c { - case ' ', '\n', '\r', '\t', '\f': - z.pendingAttr[1].end = z.raw.end - 1 - return - case '>': - z.raw.end-- - z.pendingAttr[1].end = z.raw.end - return - } - } - } -} - -// Next scans the next token and returns its type. -func (z *Tokenizer) Next() TokenType { - z.raw.start = z.raw.end - z.data.start = z.raw.end - z.data.end = z.raw.end - if z.err != nil { - z.tt = ErrorToken - return z.tt - } - if z.rawTag != "" { - if z.rawTag == "plaintext" { - // Read everything up to EOF. - for z.err == nil { - z.readByte() - } - z.data.end = z.raw.end - z.textIsRaw = true - } else { - z.readRawOrRCDATA() - } - if z.data.end > z.data.start { - z.tt = TextToken - z.convertNUL = true - return z.tt - } - } - z.textIsRaw = false - z.convertNUL = false - -loop: - for { - c := z.readByte() - if z.err != nil { - break loop - } - if c != '<' { - continue loop - } - - // Check if the '<' we have just read is part of a tag, comment - // or doctype. If not, it's part of the accumulated text token. - c = z.readByte() - if z.err != nil { - break loop - } - var tokenType TokenType - switch { - case 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z': - tokenType = StartTagToken - case c == '/': - tokenType = EndTagToken - case c == '!' || c == '?': - // We use CommentToken to mean any of "<!--actual comments-->", - // "<!DOCTYPE declarations>" and "<?xml processing instructions?>". - tokenType = CommentToken - default: - // Reconsume the current character. - z.raw.end-- - continue - } - - // We have a non-text token, but we might have accumulated some text - // before that. If so, we return the text first, and return the non- - // text token on the subsequent call to Next. - if x := z.raw.end - len("<a"); z.raw.start < x { - z.raw.end = x - z.data.end = x - z.tt = TextToken - return z.tt - } - switch tokenType { - case StartTagToken: - z.tt = z.readStartTag() - return z.tt - case EndTagToken: - c = z.readByte() - if z.err != nil { - break loop - } - if c == '>' { - // "</>" does not generate a token at all. Generate an empty comment - // to allow passthrough clients to pick up the data using Raw. - // Reset the tokenizer state and start again. - z.tt = CommentToken - return z.tt - } - if 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' { - z.readTag(false) - if z.err != nil { - z.tt = ErrorToken - } else { - z.tt = EndTagToken - } - return z.tt - } - z.raw.end-- - z.readUntilCloseAngle() - z.tt = CommentToken - return z.tt - case CommentToken: - if c == '!' { - z.tt = z.readMarkupDeclaration() - return z.tt - } - z.raw.end-- - z.readUntilCloseAngle() - z.tt = CommentToken - return z.tt - } - } - if z.raw.start < z.raw.end { - z.data.end = z.raw.end - z.tt = TextToken - return z.tt - } - z.tt = ErrorToken - return z.tt -} - -// Raw returns the unmodified text of the current token. Calling Next, Token, -// Text, TagName or TagAttr may change the contents of the returned slice. -func (z *Tokenizer) Raw() []byte { - return z.buf[z.raw.start:z.raw.end] -} - -// convertNewlines converts "\r" and "\r\n" in s to "\n". -// The conversion happens in place, but the resulting slice may be shorter. -func convertNewlines(s []byte) []byte { - for i, c := range s { - if c != '\r' { - continue - } - - src := i + 1 - if src >= len(s) || s[src] != '\n' { - s[i] = '\n' - continue - } - - dst := i - for src < len(s) { - if s[src] == '\r' { - if src+1 < len(s) && s[src+1] == '\n' { - src++ - } - s[dst] = '\n' - } else { - s[dst] = s[src] - } - src++ - dst++ - } - return s[:dst] - } - return s -} - -var ( - nul = []byte("\x00") - replacement = []byte("\ufffd") -) - -// Text returns the unescaped text of a text, comment or doctype token. The -// contents of the returned slice may change on the next call to Next. -func (z *Tokenizer) Text() []byte { - switch z.tt { - case TextToken, CommentToken, DoctypeToken: - s := z.buf[z.data.start:z.data.end] - z.data.start = z.raw.end - z.data.end = z.raw.end - s = convertNewlines(s) - if (z.convertNUL || z.tt == CommentToken) && bytes.Contains(s, nul) { - s = bytes.Replace(s, nul, replacement, -1) - } - if !z.textIsRaw { - s = unescape(s, false) - } - return s - } - return nil -} - -// TagName returns the lower-cased name of a tag token (the `img` out of -// `<IMG SRC="foo">`) and whether the tag has attributes. -// The contents of the returned slice may change on the next call to Next. -func (z *Tokenizer) TagName() (name []byte, hasAttr bool) { - if z.data.start < z.data.end { - switch z.tt { - case StartTagToken, EndTagToken, SelfClosingTagToken: - s := z.buf[z.data.start:z.data.end] - z.data.start = z.raw.end - z.data.end = z.raw.end - return lower(s), z.nAttrReturned < len(z.attr) - } - } - return nil, false -} - -// TagAttr returns the lower-cased key and unescaped value of the next unparsed -// attribute for the current tag token and whether there are more attributes. -// The contents of the returned slices may change on the next call to Next. -func (z *Tokenizer) TagAttr() (key, val []byte, moreAttr bool) { - if z.nAttrReturned < len(z.attr) { - switch z.tt { - case StartTagToken, SelfClosingTagToken: - x := z.attr[z.nAttrReturned] - z.nAttrReturned++ - key = z.buf[x[0].start:x[0].end] - val = z.buf[x[1].start:x[1].end] - return lower(key), unescape(convertNewlines(val), true), z.nAttrReturned < len(z.attr) - } - } - return nil, nil, false -} - -// Token returns the next Token. The result's Data and Attr values remain valid -// after subsequent Next calls. -func (z *Tokenizer) Token() Token { - t := Token{Type: z.tt} - switch z.tt { - case TextToken, CommentToken, DoctypeToken: - t.Data = string(z.Text()) - case StartTagToken, SelfClosingTagToken, EndTagToken: - name, moreAttr := z.TagName() - for moreAttr { - var key, val []byte - key, val, moreAttr = z.TagAttr() - t.Attr = append(t.Attr, Attribute{"", atom.String(key), string(val)}) - } - if a := atom.Lookup(name); a != 0 { - t.DataAtom, t.Data = a, a.String() - } else { - t.DataAtom, t.Data = 0, string(name) - } - } - return t -} - -// SetMaxBuf sets a limit on the amount of data buffered during tokenization. -// A value of 0 means unlimited. -func (z *Tokenizer) SetMaxBuf(n int) { - z.maxBuf = n -} - -// NewTokenizer returns a new HTML Tokenizer for the given Reader. -// The input is assumed to be UTF-8 encoded. -func NewTokenizer(r io.Reader) *Tokenizer { - return NewTokenizerFragment(r, "") -} - -// NewTokenizerFragment returns a new HTML Tokenizer for the given Reader, for -// tokenizing an existing element's InnerHTML fragment. contextTag is that -// element's tag, such as "div" or "iframe". -// -// For example, how the InnerHTML "a<b" is tokenized depends on whether it is -// for a <p> tag or a <script> tag. -// -// The input is assumed to be UTF-8 encoded. -func NewTokenizerFragment(r io.Reader, contextTag string) *Tokenizer { - z := &Tokenizer{ - r: r, - buf: make([]byte, 0, 4096), - } - if contextTag != "" { - switch s := strings.ToLower(contextTag); s { - case "iframe", "noembed", "noframes", "noscript", "plaintext", "script", "style", "title", "textarea", "xmp": - z.rawTag = s - } - } - return z -} diff --git a/vendor/golang.org/x/net/http2/hpack/LICENSE b/vendor/golang.org/x/net/http2/hpack/LICENSE deleted file mode 100644 index 6a66aea5..00000000 --- a/vendor/golang.org/x/net/http2/hpack/LICENSE +++ /dev/null @@ -1,27 +0,0 @@ -Copyright (c) 2009 The Go Authors. All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - * Redistributions of source code must retain the above copyright -notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above -copyright notice, this list of conditions and the following disclaimer -in the documentation and/or other materials provided with the -distribution. - * Neither the name of Google Inc. nor the names of its -contributors may be used to endorse or promote products derived from -this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/golang.org/x/net/http2/hpack/encode.go b/vendor/golang.org/x/net/http2/hpack/encode.go deleted file mode 100644 index f9bb0339..00000000 --- a/vendor/golang.org/x/net/http2/hpack/encode.go +++ /dev/null @@ -1,251 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package hpack - -import ( - "io" -) - -const ( - uint32Max = ^uint32(0) - initialHeaderTableSize = 4096 -) - -type Encoder struct { - dynTab dynamicTable - // minSize is the minimum table size set by - // SetMaxDynamicTableSize after the previous Header Table Size - // Update. - minSize uint32 - // maxSizeLimit is the maximum table size this encoder - // supports. This will protect the encoder from too large - // size. - maxSizeLimit uint32 - // tableSizeUpdate indicates whether "Header Table Size - // Update" is required. - tableSizeUpdate bool - w io.Writer - buf []byte -} - -// NewEncoder returns a new Encoder which performs HPACK encoding. An -// encoded data is written to w. -func NewEncoder(w io.Writer) *Encoder { - e := &Encoder{ - minSize: uint32Max, - maxSizeLimit: initialHeaderTableSize, - tableSizeUpdate: false, - w: w, - } - e.dynTab.setMaxSize(initialHeaderTableSize) - return e -} - -// WriteField encodes f into a single Write to e's underlying Writer. -// This function may also produce bytes for "Header Table Size Update" -// if necessary. If produced, it is done before encoding f. -func (e *Encoder) WriteField(f HeaderField) error { - e.buf = e.buf[:0] - - if e.tableSizeUpdate { - e.tableSizeUpdate = false - if e.minSize < e.dynTab.maxSize { - e.buf = appendTableSize(e.buf, e.minSize) - } - e.minSize = uint32Max - e.buf = appendTableSize(e.buf, e.dynTab.maxSize) - } - - idx, nameValueMatch := e.searchTable(f) - if nameValueMatch { - e.buf = appendIndexed(e.buf, idx) - } else { - indexing := e.shouldIndex(f) - if indexing { - e.dynTab.add(f) - } - - if idx == 0 { - e.buf = appendNewName(e.buf, f, indexing) - } else { - e.buf = appendIndexedName(e.buf, f, idx, indexing) - } - } - n, err := e.w.Write(e.buf) - if err == nil && n != len(e.buf) { - err = io.ErrShortWrite - } - return err -} - -// searchTable searches f in both stable and dynamic header tables. -// The static header table is searched first. Only when there is no -// exact match for both name and value, the dynamic header table is -// then searched. If there is no match, i is 0. If both name and value -// match, i is the matched index and nameValueMatch becomes true. If -// only name matches, i points to that index and nameValueMatch -// becomes false. -func (e *Encoder) searchTable(f HeaderField) (i uint64, nameValueMatch bool) { - for idx, hf := range staticTable { - if !constantTimeStringCompare(hf.Name, f.Name) { - continue - } - if i == 0 { - i = uint64(idx + 1) - } - if f.Sensitive { - continue - } - if !constantTimeStringCompare(hf.Value, f.Value) { - continue - } - i = uint64(idx + 1) - nameValueMatch = true - return - } - - j, nameValueMatch := e.dynTab.search(f) - if nameValueMatch || (i == 0 && j != 0) { - i = j + uint64(len(staticTable)) - } - return -} - -// SetMaxDynamicTableSize changes the dynamic header table size to v. -// The actual size is bounded by the value passed to -// SetMaxDynamicTableSizeLimit. -func (e *Encoder) SetMaxDynamicTableSize(v uint32) { - if v > e.maxSizeLimit { - v = e.maxSizeLimit - } - if v < e.minSize { - e.minSize = v - } - e.tableSizeUpdate = true - e.dynTab.setMaxSize(v) -} - -// SetMaxDynamicTableSizeLimit changes the maximum value that can be -// specified in SetMaxDynamicTableSize to v. By default, it is set to -// 4096, which is the same size of the default dynamic header table -// size described in HPACK specification. If the current maximum -// dynamic header table size is strictly greater than v, "Header Table -// Size Update" will be done in the next WriteField call and the -// maximum dynamic header table size is truncated to v. -func (e *Encoder) SetMaxDynamicTableSizeLimit(v uint32) { - e.maxSizeLimit = v - if e.dynTab.maxSize > v { - e.tableSizeUpdate = true - e.dynTab.setMaxSize(v) - } -} - -// shouldIndex reports whether f should be indexed. -func (e *Encoder) shouldIndex(f HeaderField) bool { - return !f.Sensitive && f.Size() <= e.dynTab.maxSize -} - -// appendIndexed appends index i, as encoded in "Indexed Header Field" -// representation, to dst and returns the extended buffer. -func appendIndexed(dst []byte, i uint64) []byte { - first := len(dst) - dst = appendVarInt(dst, 7, i) - dst[first] |= 0x80 - return dst -} - -// appendNewName appends f, as encoded in one of "Literal Header field -// - New Name" representation variants, to dst and returns the -// extended buffer. -// -// If f.Sensitive is true, "Never Indexed" representation is used. If -// f.Sensitive is false and indexing is true, "Inremental Indexing" -// representation is used. -func appendNewName(dst []byte, f HeaderField, indexing bool) []byte { - dst = append(dst, encodeTypeByte(indexing, f.Sensitive)) - dst = appendHpackString(dst, f.Name) - return appendHpackString(dst, f.Value) -} - -// appendIndexedName appends f and index i referring indexed name -// entry, as encoded in one of "Literal Header field - Indexed Name" -// representation variants, to dst and returns the extended buffer. -// -// If f.Sensitive is true, "Never Indexed" representation is used. If -// f.Sensitive is false and indexing is true, "Incremental Indexing" -// representation is used. -func appendIndexedName(dst []byte, f HeaderField, i uint64, indexing bool) []byte { - first := len(dst) - var n byte - if indexing { - n = 6 - } else { - n = 4 - } - dst = appendVarInt(dst, n, i) - dst[first] |= encodeTypeByte(indexing, f.Sensitive) - return appendHpackString(dst, f.Value) -} - -// appendTableSize appends v, as encoded in "Header Table Size Update" -// representation, to dst and returns the extended buffer. -func appendTableSize(dst []byte, v uint32) []byte { - first := len(dst) - dst = appendVarInt(dst, 5, uint64(v)) - dst[first] |= 0x20 - return dst -} - -// appendVarInt appends i, as encoded in variable integer form using n -// bit prefix, to dst and returns the extended buffer. -// -// See -// http://http2.github.io/http2-spec/compression.html#integer.representation -func appendVarInt(dst []byte, n byte, i uint64) []byte { - k := uint64((1 << n) - 1) - if i < k { - return append(dst, byte(i)) - } - dst = append(dst, byte(k)) - i -= k - for ; i >= 128; i >>= 7 { - dst = append(dst, byte(0x80|(i&0x7f))) - } - return append(dst, byte(i)) -} - -// appendHpackString appends s, as encoded in "String Literal" -// representation, to dst and returns the the extended buffer. -// -// s will be encoded in Huffman codes only when it produces strictly -// shorter byte string. -func appendHpackString(dst []byte, s string) []byte { - huffmanLength := HuffmanEncodeLength(s) - if huffmanLength < uint64(len(s)) { - first := len(dst) - dst = appendVarInt(dst, 7, huffmanLength) - dst = AppendHuffmanString(dst, s) - dst[first] |= 0x80 - } else { - dst = appendVarInt(dst, 7, uint64(len(s))) - dst = append(dst, s...) - } - return dst -} - -// encodeTypeByte returns type byte. If sensitive is true, type byte -// for "Never Indexed" representation is returned. If sensitive is -// false and indexing is true, type byte for "Incremental Indexing" -// representation is returned. Otherwise, type byte for "Without -// Indexing" is returned. -func encodeTypeByte(indexing, sensitive bool) byte { - if sensitive { - return 0x10 - } - if indexing { - return 0x40 - } - return 0 -} diff --git a/vendor/golang.org/x/net/http2/hpack/hpack.go b/vendor/golang.org/x/net/http2/hpack/hpack.go deleted file mode 100644 index dcf257af..00000000 --- a/vendor/golang.org/x/net/http2/hpack/hpack.go +++ /dev/null @@ -1,542 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package hpack implements HPACK, a compression format for -// efficiently representing HTTP header fields in the context of HTTP/2. -// -// See http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-09 -package hpack - -import ( - "bytes" - "errors" - "fmt" -) - -// A DecodingError is something the spec defines as a decoding error. -type DecodingError struct { - Err error -} - -func (de DecodingError) Error() string { - return fmt.Sprintf("decoding error: %v", de.Err) -} - -// An InvalidIndexError is returned when an encoder references a table -// entry before the static table or after the end of the dynamic table. -type InvalidIndexError int - -func (e InvalidIndexError) Error() string { - return fmt.Sprintf("invalid indexed representation index %d", int(e)) -} - -// A HeaderField is a name-value pair. Both the name and value are -// treated as opaque sequences of octets. -type HeaderField struct { - Name, Value string - - // Sensitive means that this header field should never be - // indexed. - Sensitive bool -} - -// IsPseudo reports whether the header field is an http2 pseudo header. -// That is, it reports whether it starts with a colon. -// It is not otherwise guaranteed to be a valid psuedo header field, -// though. -func (hf HeaderField) IsPseudo() bool { - return len(hf.Name) != 0 && hf.Name[0] == ':' -} - -func (hf HeaderField) String() string { - var suffix string - if hf.Sensitive { - suffix = " (sensitive)" - } - return fmt.Sprintf("header field %q = %q%s", hf.Name, hf.Value, suffix) -} - -// Size returns the size of an entry per RFC 7540 section 5.2. -func (hf HeaderField) Size() uint32 { - // http://http2.github.io/http2-spec/compression.html#rfc.section.4.1 - // "The size of the dynamic table is the sum of the size of - // its entries. The size of an entry is the sum of its name's - // length in octets (as defined in Section 5.2), its value's - // length in octets (see Section 5.2), plus 32. The size of - // an entry is calculated using the length of the name and - // value without any Huffman encoding applied." - - // This can overflow if somebody makes a large HeaderField - // Name and/or Value by hand, but we don't care, because that - // won't happen on the wire because the encoding doesn't allow - // it. - return uint32(len(hf.Name) + len(hf.Value) + 32) -} - -// A Decoder is the decoding context for incremental processing of -// header blocks. -type Decoder struct { - dynTab dynamicTable - emit func(f HeaderField) - - emitEnabled bool // whether calls to emit are enabled - maxStrLen int // 0 means unlimited - - // buf is the unparsed buffer. It's only written to - // saveBuf if it was truncated in the middle of a header - // block. Because it's usually not owned, we can only - // process it under Write. - buf []byte // not owned; only valid during Write - - // saveBuf is previous data passed to Write which we weren't able - // to fully parse before. Unlike buf, we own this data. - saveBuf bytes.Buffer -} - -// NewDecoder returns a new decoder with the provided maximum dynamic -// table size. The emitFunc will be called for each valid field -// parsed, in the same goroutine as calls to Write, before Write returns. -func NewDecoder(maxDynamicTableSize uint32, emitFunc func(f HeaderField)) *Decoder { - d := &Decoder{ - emit: emitFunc, - emitEnabled: true, - } - d.dynTab.allowedMaxSize = maxDynamicTableSize - d.dynTab.setMaxSize(maxDynamicTableSize) - return d -} - -// ErrStringLength is returned by Decoder.Write when the max string length -// (as configured by Decoder.SetMaxStringLength) would be violated. -var ErrStringLength = errors.New("hpack: string too long") - -// SetMaxStringLength sets the maximum size of a HeaderField name or -// value string. If a string exceeds this length (even after any -// decompression), Write will return ErrStringLength. -// A value of 0 means unlimited and is the default from NewDecoder. -func (d *Decoder) SetMaxStringLength(n int) { - d.maxStrLen = n -} - -// SetEmitFunc changes the callback used when new header fields -// are decoded. -// It must be non-nil. It does not affect EmitEnabled. -func (d *Decoder) SetEmitFunc(emitFunc func(f HeaderField)) { - d.emit = emitFunc -} - -// SetEmitEnabled controls whether the emitFunc provided to NewDecoder -// should be called. The default is true. -// -// This facility exists to let servers enforce MAX_HEADER_LIST_SIZE -// while still decoding and keeping in-sync with decoder state, but -// without doing unnecessary decompression or generating unnecessary -// garbage for header fields past the limit. -func (d *Decoder) SetEmitEnabled(v bool) { d.emitEnabled = v } - -// EmitEnabled reports whether calls to the emitFunc provided to NewDecoder -// are currently enabled. The default is true. -func (d *Decoder) EmitEnabled() bool { return d.emitEnabled } - -// TODO: add method *Decoder.Reset(maxSize, emitFunc) to let callers re-use Decoders and their -// underlying buffers for garbage reasons. - -func (d *Decoder) SetMaxDynamicTableSize(v uint32) { - d.dynTab.setMaxSize(v) -} - -// SetAllowedMaxDynamicTableSize sets the upper bound that the encoded -// stream (via dynamic table size updates) may set the maximum size -// to. -func (d *Decoder) SetAllowedMaxDynamicTableSize(v uint32) { - d.dynTab.allowedMaxSize = v -} - -type dynamicTable struct { - // ents is the FIFO described at - // http://http2.github.io/http2-spec/compression.html#rfc.section.2.3.2 - // The newest (low index) is append at the end, and items are - // evicted from the front. - ents []HeaderField - size uint32 - maxSize uint32 // current maxSize - allowedMaxSize uint32 // maxSize may go up to this, inclusive -} - -func (dt *dynamicTable) setMaxSize(v uint32) { - dt.maxSize = v - dt.evict() -} - -// TODO: change dynamicTable to be a struct with a slice and a size int field, -// per http://http2.github.io/http2-spec/compression.html#rfc.section.4.1: -// -// -// Then make add increment the size. maybe the max size should move from Decoder to -// dynamicTable and add should return an ok bool if there was enough space. -// -// Later we'll need a remove operation on dynamicTable. - -func (dt *dynamicTable) add(f HeaderField) { - dt.ents = append(dt.ents, f) - dt.size += f.Size() - dt.evict() -} - -// If we're too big, evict old stuff (front of the slice) -func (dt *dynamicTable) evict() { - base := dt.ents // keep base pointer of slice - for dt.size > dt.maxSize { - dt.size -= dt.ents[0].Size() - dt.ents = dt.ents[1:] - } - - // Shift slice contents down if we evicted things. - if len(dt.ents) != len(base) { - copy(base, dt.ents) - dt.ents = base[:len(dt.ents)] - } -} - -// constantTimeStringCompare compares string a and b in a constant -// time manner. -func constantTimeStringCompare(a, b string) bool { - if len(a) != len(b) { - return false - } - - c := byte(0) - - for i := 0; i < len(a); i++ { - c |= a[i] ^ b[i] - } - - return c == 0 -} - -// Search searches f in the table. The return value i is 0 if there is -// no name match. If there is name match or name/value match, i is the -// index of that entry (1-based). If both name and value match, -// nameValueMatch becomes true. -func (dt *dynamicTable) search(f HeaderField) (i uint64, nameValueMatch bool) { - l := len(dt.ents) - for j := l - 1; j >= 0; j-- { - ent := dt.ents[j] - if !constantTimeStringCompare(ent.Name, f.Name) { - continue - } - if i == 0 { - i = uint64(l - j) - } - if f.Sensitive { - continue - } - if !constantTimeStringCompare(ent.Value, f.Value) { - continue - } - i = uint64(l - j) - nameValueMatch = true - return - } - return -} - -func (d *Decoder) maxTableIndex() int { - return len(d.dynTab.ents) + len(staticTable) -} - -func (d *Decoder) at(i uint64) (hf HeaderField, ok bool) { - if i < 1 { - return - } - if i > uint64(d.maxTableIndex()) { - return - } - if i <= uint64(len(staticTable)) { - return staticTable[i-1], true - } - dents := d.dynTab.ents - return dents[len(dents)-(int(i)-len(staticTable))], true -} - -// Decode decodes an entire block. -// -// TODO: remove this method and make it incremental later? This is -// easier for debugging now. -func (d *Decoder) DecodeFull(p []byte) ([]HeaderField, error) { - var hf []HeaderField - saveFunc := d.emit - defer func() { d.emit = saveFunc }() - d.emit = func(f HeaderField) { hf = append(hf, f) } - if _, err := d.Write(p); err != nil { - return nil, err - } - if err := d.Close(); err != nil { - return nil, err - } - return hf, nil -} - -func (d *Decoder) Close() error { - if d.saveBuf.Len() > 0 { - d.saveBuf.Reset() - return DecodingError{errors.New("truncated headers")} - } - return nil -} - -func (d *Decoder) Write(p []byte) (n int, err error) { - if len(p) == 0 { - // Prevent state machine CPU attacks (making us redo - // work up to the point of finding out we don't have - // enough data) - return - } - // Only copy the data if we have to. Optimistically assume - // that p will contain a complete header block. - if d.saveBuf.Len() == 0 { - d.buf = p - } else { - d.saveBuf.Write(p) - d.buf = d.saveBuf.Bytes() - d.saveBuf.Reset() - } - - for len(d.buf) > 0 { - err = d.parseHeaderFieldRepr() - if err == errNeedMore { - // Extra paranoia, making sure saveBuf won't - // get too large. All the varint and string - // reading code earlier should already catch - // overlong things and return ErrStringLength, - // but keep this as a last resort. - const varIntOverhead = 8 // conservative - if d.maxStrLen != 0 && int64(len(d.buf)) > 2*(int64(d.maxStrLen)+varIntOverhead) { - return 0, ErrStringLength - } - d.saveBuf.Write(d.buf) - return len(p), nil - } - if err != nil { - break - } - } - return len(p), err -} - -// errNeedMore is an internal sentinel error value that means the -// buffer is truncated and we need to read more data before we can -// continue parsing. -var errNeedMore = errors.New("need more data") - -type indexType int - -const ( - indexedTrue indexType = iota - indexedFalse - indexedNever -) - -func (v indexType) indexed() bool { return v == indexedTrue } -func (v indexType) sensitive() bool { return v == indexedNever } - -// returns errNeedMore if there isn't enough data available. -// any other error is fatal. -// consumes d.buf iff it returns nil. -// precondition: must be called with len(d.buf) > 0 -func (d *Decoder) parseHeaderFieldRepr() error { - b := d.buf[0] - switch { - case b&128 != 0: - // Indexed representation. - // High bit set? - // http://http2.github.io/http2-spec/compression.html#rfc.section.6.1 - return d.parseFieldIndexed() - case b&192 == 64: - // 6.2.1 Literal Header Field with Incremental Indexing - // 0b10xxxxxx: top two bits are 10 - // http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.1 - return d.parseFieldLiteral(6, indexedTrue) - case b&240 == 0: - // 6.2.2 Literal Header Field without Indexing - // 0b0000xxxx: top four bits are 0000 - // http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.2 - return d.parseFieldLiteral(4, indexedFalse) - case b&240 == 16: - // 6.2.3 Literal Header Field never Indexed - // 0b0001xxxx: top four bits are 0001 - // http://http2.github.io/http2-spec/compression.html#rfc.section.6.2.3 - return d.parseFieldLiteral(4, indexedNever) - case b&224 == 32: - // 6.3 Dynamic Table Size Update - // Top three bits are '001'. - // http://http2.github.io/http2-spec/compression.html#rfc.section.6.3 - return d.parseDynamicTableSizeUpdate() - } - - return DecodingError{errors.New("invalid encoding")} -} - -// (same invariants and behavior as parseHeaderFieldRepr) -func (d *Decoder) parseFieldIndexed() error { - buf := d.buf - idx, buf, err := readVarInt(7, buf) - if err != nil { - return err - } - hf, ok := d.at(idx) - if !ok { - return DecodingError{InvalidIndexError(idx)} - } - d.buf = buf - return d.callEmit(HeaderField{Name: hf.Name, Value: hf.Value}) -} - -// (same invariants and behavior as parseHeaderFieldRepr) -func (d *Decoder) parseFieldLiteral(n uint8, it indexType) error { - buf := d.buf - nameIdx, buf, err := readVarInt(n, buf) - if err != nil { - return err - } - - var hf HeaderField - wantStr := d.emitEnabled || it.indexed() - if nameIdx > 0 { - ihf, ok := d.at(nameIdx) - if !ok { - return DecodingError{InvalidIndexError(nameIdx)} - } - hf.Name = ihf.Name - } else { - hf.Name, buf, err = d.readString(buf, wantStr) - if err != nil { - return err - } - } - hf.Value, buf, err = d.readString(buf, wantStr) - if err != nil { - return err - } - d.buf = buf - if it.indexed() { - d.dynTab.add(hf) - } - hf.Sensitive = it.sensitive() - return d.callEmit(hf) -} - -func (d *Decoder) callEmit(hf HeaderField) error { - if d.maxStrLen != 0 { - if len(hf.Name) > d.maxStrLen || len(hf.Value) > d.maxStrLen { - return ErrStringLength - } - } - if d.emitEnabled { - d.emit(hf) - } - return nil -} - -// (same invariants and behavior as parseHeaderFieldRepr) -func (d *Decoder) parseDynamicTableSizeUpdate() error { - buf := d.buf - size, buf, err := readVarInt(5, buf) - if err != nil { - return err - } - if size > uint64(d.dynTab.allowedMaxSize) { - return DecodingError{errors.New("dynamic table size update too large")} - } - d.dynTab.setMaxSize(uint32(size)) - d.buf = buf - return nil -} - -var errVarintOverflow = DecodingError{errors.New("varint integer overflow")} - -// readVarInt reads an unsigned variable length integer off the -// beginning of p. n is the parameter as described in -// http://http2.github.io/http2-spec/compression.html#rfc.section.5.1. -// -// n must always be between 1 and 8. -// -// The returned remain buffer is either a smaller suffix of p, or err != nil. -// The error is errNeedMore if p doesn't contain a complete integer. -func readVarInt(n byte, p []byte) (i uint64, remain []byte, err error) { - if n < 1 || n > 8 { - panic("bad n") - } - if len(p) == 0 { - return 0, p, errNeedMore - } - i = uint64(p[0]) - if n < 8 { - i &= (1 << uint64(n)) - 1 - } - if i < (1<<uint64(n))-1 { - return i, p[1:], nil - } - - origP := p - p = p[1:] - var m uint64 - for len(p) > 0 { - b := p[0] - p = p[1:] - i += uint64(b&127) << m - if b&128 == 0 { - return i, p, nil - } - m += 7 - if m >= 63 { // TODO: proper overflow check. making this up. - return 0, origP, errVarintOverflow - } - } - return 0, origP, errNeedMore -} - -// readString decodes an hpack string from p. -// -// wantStr is whether s will be used. If false, decompression and -// []byte->string garbage are skipped if s will be ignored -// anyway. This does mean that huffman decoding errors for non-indexed -// strings past the MAX_HEADER_LIST_SIZE are ignored, but the server -// is returning an error anyway, and because they're not indexed, the error -// won't affect the decoding state. -func (d *Decoder) readString(p []byte, wantStr bool) (s string, remain []byte, err error) { - if len(p) == 0 { - return "", p, errNeedMore - } - isHuff := p[0]&128 != 0 - strLen, p, err := readVarInt(7, p) - if err != nil { - return "", p, err - } - if d.maxStrLen != 0 && strLen > uint64(d.maxStrLen) { - return "", nil, ErrStringLength - } - if uint64(len(p)) < strLen { - return "", p, errNeedMore - } - if !isHuff { - if wantStr { - s = string(p[:strLen]) - } - return s, p[strLen:], nil - } - - if wantStr { - buf := bufPool.Get().(*bytes.Buffer) - buf.Reset() // don't trust others - defer bufPool.Put(buf) - if err := huffmanDecode(buf, d.maxStrLen, p[:strLen]); err != nil { - buf.Reset() - return "", nil, err - } - s = buf.String() - buf.Reset() // be nice to GC - } - return s, p[strLen:], nil -} diff --git a/vendor/golang.org/x/net/http2/hpack/huffman.go b/vendor/golang.org/x/net/http2/hpack/huffman.go deleted file mode 100644 index eb4b1f05..00000000 --- a/vendor/golang.org/x/net/http2/hpack/huffman.go +++ /dev/null @@ -1,190 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package hpack - -import ( - "bytes" - "errors" - "io" - "sync" -) - -var bufPool = sync.Pool{ - New: func() interface{} { return new(bytes.Buffer) }, -} - -// HuffmanDecode decodes the string in v and writes the expanded -// result to w, returning the number of bytes written to w and the -// Write call's return value. At most one Write call is made. -func HuffmanDecode(w io.Writer, v []byte) (int, error) { - buf := bufPool.Get().(*bytes.Buffer) - buf.Reset() - defer bufPool.Put(buf) - if err := huffmanDecode(buf, 0, v); err != nil { - return 0, err - } - return w.Write(buf.Bytes()) -} - -// HuffmanDecodeToString decodes the string in v. -func HuffmanDecodeToString(v []byte) (string, error) { - buf := bufPool.Get().(*bytes.Buffer) - buf.Reset() - defer bufPool.Put(buf) - if err := huffmanDecode(buf, 0, v); err != nil { - return "", err - } - return buf.String(), nil -} - -// ErrInvalidHuffman is returned for errors found decoding -// Huffman-encoded strings. -var ErrInvalidHuffman = errors.New("hpack: invalid Huffman-encoded data") - -// huffmanDecode decodes v to buf. -// If maxLen is greater than 0, attempts to write more to buf than -// maxLen bytes will return ErrStringLength. -func huffmanDecode(buf *bytes.Buffer, maxLen int, v []byte) error { - n := rootHuffmanNode - cur, nbits := uint(0), uint8(0) - for _, b := range v { - cur = cur<<8 | uint(b) - nbits += 8 - for nbits >= 8 { - idx := byte(cur >> (nbits - 8)) - n = n.children[idx] - if n == nil { - return ErrInvalidHuffman - } - if n.children == nil { - if maxLen != 0 && buf.Len() == maxLen { - return ErrStringLength - } - buf.WriteByte(n.sym) - nbits -= n.codeLen - n = rootHuffmanNode - } else { - nbits -= 8 - } - } - } - for nbits > 0 { - n = n.children[byte(cur<<(8-nbits))] - if n.children != nil || n.codeLen > nbits { - break - } - buf.WriteByte(n.sym) - nbits -= n.codeLen - n = rootHuffmanNode - } - return nil -} - -type node struct { - // children is non-nil for internal nodes - children []*node - - // The following are only valid if children is nil: - codeLen uint8 // number of bits that led to the output of sym - sym byte // output symbol -} - -func newInternalNode() *node { - return &node{children: make([]*node, 256)} -} - -var rootHuffmanNode = newInternalNode() - -func init() { - if len(huffmanCodes) != 256 { - panic("unexpected size") - } - for i, code := range huffmanCodes { - addDecoderNode(byte(i), code, huffmanCodeLen[i]) - } -} - -func addDecoderNode(sym byte, code uint32, codeLen uint8) { - cur := rootHuffmanNode - for codeLen > 8 { - codeLen -= 8 - i := uint8(code >> codeLen) - if cur.children[i] == nil { - cur.children[i] = newInternalNode() - } - cur = cur.children[i] - } - shift := 8 - codeLen - start, end := int(uint8(code<<shift)), int(1<<shift) - for i := start; i < start+end; i++ { - cur.children[i] = &node{sym: sym, codeLen: codeLen} - } -} - -// AppendHuffmanString appends s, as encoded in Huffman codes, to dst -// and returns the extended buffer. -func AppendHuffmanString(dst []byte, s string) []byte { - rembits := uint8(8) - - for i := 0; i < len(s); i++ { - if rembits == 8 { - dst = append(dst, 0) - } - dst, rembits = appendByteToHuffmanCode(dst, rembits, s[i]) - } - - if rembits < 8 { - // special EOS symbol - code := uint32(0x3fffffff) - nbits := uint8(30) - - t := uint8(code >> (nbits - rembits)) - dst[len(dst)-1] |= t - } - - return dst -} - -// HuffmanEncodeLength returns the number of bytes required to encode -// s in Huffman codes. The result is round up to byte boundary. -func HuffmanEncodeLength(s string) uint64 { - n := uint64(0) - for i := 0; i < len(s); i++ { - n += uint64(huffmanCodeLen[s[i]]) - } - return (n + 7) / 8 -} - -// appendByteToHuffmanCode appends Huffman code for c to dst and -// returns the extended buffer and the remaining bits in the last -// element. The appending is not byte aligned and the remaining bits -// in the last element of dst is given in rembits. -func appendByteToHuffmanCode(dst []byte, rembits uint8, c byte) ([]byte, uint8) { - code := huffmanCodes[c] - nbits := huffmanCodeLen[c] - - for { - if rembits > nbits { - t := uint8(code << (rembits - nbits)) - dst[len(dst)-1] |= t - rembits -= nbits - break - } - - t := uint8(code >> (nbits - rembits)) - dst[len(dst)-1] |= t - - nbits -= rembits - rembits = 8 - - if nbits == 0 { - break - } - - dst = append(dst, 0) - } - - return dst, rembits -} diff --git a/vendor/golang.org/x/net/http2/hpack/tables.go b/vendor/golang.org/x/net/http2/hpack/tables.go deleted file mode 100644 index b9283a02..00000000 --- a/vendor/golang.org/x/net/http2/hpack/tables.go +++ /dev/null @@ -1,352 +0,0 @@ -// Copyright 2014 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package hpack - -func pair(name, value string) HeaderField { - return HeaderField{Name: name, Value: value} -} - -// http://tools.ietf.org/html/draft-ietf-httpbis-header-compression-07#appendix-B -var staticTable = [...]HeaderField{ - pair(":authority", ""), // index 1 (1-based) - pair(":method", "GET"), - pair(":method", "POST"), - pair(":path", "/"), - pair(":path", "/index.html"), - pair(":scheme", "http"), - pair(":scheme", "https"), - pair(":status", "200"), - pair(":status", "204"), - pair(":status", "206"), - pair(":status", "304"), - pair(":status", "400"), - pair(":status", "404"), - pair(":status", "500"), - pair("accept-charset", ""), - pair("accept-encoding", "gzip, deflate"), - pair("accept-language", ""), - pair("accept-ranges", ""), - pair("accept", ""), - pair("access-control-allow-origin", ""), - pair("age", ""), - pair("allow", ""), - pair("authorization", ""), - pair("cache-control", ""), - pair("content-disposition", ""), - pair("content-encoding", ""), - pair("content-language", ""), - pair("content-length", ""), - pair("content-location", ""), - pair("content-range", ""), - pair("content-type", ""), - pair("cookie", ""), - pair("date", ""), - pair("etag", ""), - pair("expect", ""), - pair("expires", ""), - pair("from", ""), - pair("host", ""), - pair("if-match", ""), - pair("if-modified-since", ""), - pair("if-none-match", ""), - pair("if-range", ""), - pair("if-unmodified-since", ""), - pair("last-modified", ""), - pair("link", ""), - pair("location", ""), - pair("max-forwards", ""), - pair("proxy-authenticate", ""), - pair("proxy-authorization", ""), - pair("range", ""), - pair("referer", ""), - pair("refresh", ""), - pair("retry-after", ""), - pair("server", ""), - pair("set-cookie", ""), - pair("strict-transport-security", ""), - pair("transfer-encoding", ""), - pair("user-agent", ""), - pair("vary", ""), - pair("via", ""), - pair("www-authenticate", ""), -} - -var huffmanCodes = [256]uint32{ - 0x1ff8, - 0x7fffd8, - 0xfffffe2, - 0xfffffe3, - 0xfffffe4, - 0xfffffe5, - 0xfffffe6, - 0xfffffe7, - 0xfffffe8, - 0xffffea, - 0x3ffffffc, - 0xfffffe9, - 0xfffffea, - 0x3ffffffd, - 0xfffffeb, - 0xfffffec, - 0xfffffed, - 0xfffffee, - 0xfffffef, - 0xffffff0, - 0xffffff1, - 0xffffff2, - 0x3ffffffe, - 0xffffff3, - 0xffffff4, - 0xffffff5, - 0xffffff6, - 0xffffff7, - 0xffffff8, - 0xffffff9, - 0xffffffa, - 0xffffffb, - 0x14, - 0x3f8, - 0x3f9, - 0xffa, - 0x1ff9, - 0x15, - 0xf8, - 0x7fa, - 0x3fa, - 0x3fb, - 0xf9, - 0x7fb, - 0xfa, - 0x16, - 0x17, - 0x18, - 0x0, - 0x1, - 0x2, - 0x19, - 0x1a, - 0x1b, - 0x1c, - 0x1d, - 0x1e, - 0x1f, - 0x5c, - 0xfb, - 0x7ffc, - 0x20, - 0xffb, - 0x3fc, - 0x1ffa, - 0x21, - 0x5d, - 0x5e, - 0x5f, - 0x60, - 0x61, - 0x62, - 0x63, - 0x64, - 0x65, - 0x66, - 0x67, - 0x68, - 0x69, - 0x6a, - 0x6b, - 0x6c, - 0x6d, - 0x6e, - 0x6f, - 0x70, - 0x71, - 0x72, - 0xfc, - 0x73, - 0xfd, - 0x1ffb, - 0x7fff0, - 0x1ffc, - 0x3ffc, - 0x22, - 0x7ffd, - 0x3, - 0x23, - 0x4, - 0x24, - 0x5, - 0x25, - 0x26, - 0x27, - 0x6, - 0x74, - 0x75, - 0x28, - 0x29, - 0x2a, - 0x7, - 0x2b, - 0x76, - 0x2c, - 0x8, - 0x9, - 0x2d, - 0x77, - 0x78, - 0x79, - 0x7a, - 0x7b, - 0x7ffe, - 0x7fc, - 0x3ffd, - 0x1ffd, - 0xffffffc, - 0xfffe6, - 0x3fffd2, - 0xfffe7, - 0xfffe8, - 0x3fffd3, - 0x3fffd4, - 0x3fffd5, - 0x7fffd9, - 0x3fffd6, - 0x7fffda, - 0x7fffdb, - 0x7fffdc, - 0x7fffdd, - 0x7fffde, - 0xffffeb, - 0x7fffdf, - 0xffffec, - 0xffffed, - 0x3fffd7, - 0x7fffe0, - 0xffffee, - 0x7fffe1, - 0x7fffe2, - 0x7fffe3, - 0x7fffe4, - 0x1fffdc, - 0x3fffd8, - 0x7fffe5, - 0x3fffd9, - 0x7fffe6, - 0x7fffe7, - 0xffffef, - 0x3fffda, - 0x1fffdd, - 0xfffe9, - 0x3fffdb, - 0x3fffdc, - 0x7fffe8, - 0x7fffe9, - 0x1fffde, - 0x7fffea, - 0x3fffdd, - 0x3fffde, - 0xfffff0, - 0x1fffdf, - 0x3fffdf, - 0x7fffeb, - 0x7fffec, - 0x1fffe0, - 0x1fffe1, - 0x3fffe0, - 0x1fffe2, - 0x7fffed, - 0x3fffe1, - 0x7fffee, - 0x7fffef, - 0xfffea, - 0x3fffe2, - 0x3fffe3, - 0x3fffe4, - 0x7ffff0, - 0x3fffe5, - 0x3fffe6, - 0x7ffff1, - 0x3ffffe0, - 0x3ffffe1, - 0xfffeb, - 0x7fff1, - 0x3fffe7, - 0x7ffff2, - 0x3fffe8, - 0x1ffffec, - 0x3ffffe2, - 0x3ffffe3, - 0x3ffffe4, - 0x7ffffde, - 0x7ffffdf, - 0x3ffffe5, - 0xfffff1, - 0x1ffffed, - 0x7fff2, - 0x1fffe3, - 0x3ffffe6, - 0x7ffffe0, - 0x7ffffe1, - 0x3ffffe7, - 0x7ffffe2, - 0xfffff2, - 0x1fffe4, - 0x1fffe5, - 0x3ffffe8, - 0x3ffffe9, - 0xffffffd, - 0x7ffffe3, - 0x7ffffe4, - 0x7ffffe5, - 0xfffec, - 0xfffff3, - 0xfffed, - 0x1fffe6, - 0x3fffe9, - 0x1fffe7, - 0x1fffe8, - 0x7ffff3, - 0x3fffea, - 0x3fffeb, - 0x1ffffee, - 0x1ffffef, - 0xfffff4, - 0xfffff5, - 0x3ffffea, - 0x7ffff4, - 0x3ffffeb, - 0x7ffffe6, - 0x3ffffec, - 0x3ffffed, - 0x7ffffe7, - 0x7ffffe8, - 0x7ffffe9, - 0x7ffffea, - 0x7ffffeb, - 0xffffffe, - 0x7ffffec, - 0x7ffffed, - 0x7ffffee, - 0x7ffffef, - 0x7fffff0, - 0x3ffffee, -} - -var huffmanCodeLen = [256]uint8{ - 13, 23, 28, 28, 28, 28, 28, 28, 28, 24, 30, 28, 28, 30, 28, 28, - 28, 28, 28, 28, 28, 28, 30, 28, 28, 28, 28, 28, 28, 28, 28, 28, - 6, 10, 10, 12, 13, 6, 8, 11, 10, 10, 8, 11, 8, 6, 6, 6, - 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 7, 8, 15, 6, 12, 10, - 13, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 8, 7, 8, 13, 19, 13, 14, 6, - 15, 5, 6, 5, 6, 5, 6, 6, 6, 5, 7, 7, 6, 6, 6, 5, - 6, 7, 6, 5, 5, 6, 7, 7, 7, 7, 7, 15, 11, 14, 13, 28, - 20, 22, 20, 20, 22, 22, 22, 23, 22, 23, 23, 23, 23, 23, 24, 23, - 24, 24, 22, 23, 24, 23, 23, 23, 23, 21, 22, 23, 22, 23, 23, 24, - 22, 21, 20, 22, 22, 23, 23, 21, 23, 22, 22, 24, 21, 22, 23, 23, - 21, 21, 22, 21, 23, 22, 23, 23, 20, 22, 22, 22, 23, 22, 22, 23, - 26, 26, 20, 19, 22, 23, 22, 25, 26, 26, 26, 27, 27, 26, 24, 25, - 19, 21, 26, 27, 27, 26, 27, 24, 21, 21, 26, 26, 28, 27, 27, 27, - 20, 24, 20, 21, 22, 21, 21, 23, 22, 22, 25, 25, 24, 24, 26, 23, - 26, 27, 26, 26, 27, 27, 27, 27, 27, 28, 27, 27, 27, 27, 27, 26, -} diff --git a/vendor/golang.org/x/net/lex/httplex/LICENSE b/vendor/golang.org/x/net/lex/httplex/LICENSE deleted file mode 100644 index 6a66aea5..00000000 --- a/vendor/golang.org/x/net/lex/httplex/LICENSE +++ /dev/null @@ -1,27 +0,0 @@ -Copyright (c) 2009 The Go Authors. All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - * Redistributions of source code must retain the above copyright -notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above -copyright notice, this list of conditions and the following disclaimer -in the documentation and/or other materials provided with the -distribution. - * Neither the name of Google Inc. nor the names of its -contributors may be used to endorse or promote products derived from -this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/golang.org/x/net/lex/httplex/httplex.go b/vendor/golang.org/x/net/lex/httplex/httplex.go deleted file mode 100644 index bd0ec24f..00000000 --- a/vendor/golang.org/x/net/lex/httplex/httplex.go +++ /dev/null @@ -1,312 +0,0 @@ -// Copyright 2016 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// Package httplex contains rules around lexical matters of various -// HTTP-related specifications. -// -// This package is shared by the standard library (which vendors it) -// and x/net/http2. It comes with no API stability promise. -package httplex - -import ( - "strings" - "unicode/utf8" -) - -var isTokenTable = [127]bool{ - '!': true, - '#': true, - '$': true, - '%': true, - '&': true, - '\'': true, - '*': true, - '+': true, - '-': true, - '.': true, - '0': true, - '1': true, - '2': true, - '3': true, - '4': true, - '5': true, - '6': true, - '7': true, - '8': true, - '9': true, - 'A': true, - 'B': true, - 'C': true, - 'D': true, - 'E': true, - 'F': true, - 'G': true, - 'H': true, - 'I': true, - 'J': true, - 'K': true, - 'L': true, - 'M': true, - 'N': true, - 'O': true, - 'P': true, - 'Q': true, - 'R': true, - 'S': true, - 'T': true, - 'U': true, - 'W': true, - 'V': true, - 'X': true, - 'Y': true, - 'Z': true, - '^': true, - '_': true, - '`': true, - 'a': true, - 'b': true, - 'c': true, - 'd': true, - 'e': true, - 'f': true, - 'g': true, - 'h': true, - 'i': true, - 'j': true, - 'k': true, - 'l': true, - 'm': true, - 'n': true, - 'o': true, - 'p': true, - 'q': true, - 'r': true, - 's': true, - 't': true, - 'u': true, - 'v': true, - 'w': true, - 'x': true, - 'y': true, - 'z': true, - '|': true, - '~': true, -} - -func IsTokenRune(r rune) bool { - i := int(r) - return i < len(isTokenTable) && isTokenTable[i] -} - -func isNotToken(r rune) bool { - return !IsTokenRune(r) -} - -// HeaderValuesContainsToken reports whether any string in values -// contains the provided token, ASCII case-insensitively. -func HeaderValuesContainsToken(values []string, token string) bool { - for _, v := range values { - if headerValueContainsToken(v, token) { - return true - } - } - return false -} - -// isOWS reports whether b is an optional whitespace byte, as defined -// by RFC 7230 section 3.2.3. -func isOWS(b byte) bool { return b == ' ' || b == '\t' } - -// trimOWS returns x with all optional whitespace removes from the -// beginning and end. -func trimOWS(x string) string { - // TODO: consider using strings.Trim(x, " \t") instead, - // if and when it's fast enough. See issue 10292. - // But this ASCII-only code will probably always beat UTF-8 - // aware code. - for len(x) > 0 && isOWS(x[0]) { - x = x[1:] - } - for len(x) > 0 && isOWS(x[len(x)-1]) { - x = x[:len(x)-1] - } - return x -} - -// headerValueContainsToken reports whether v (assumed to be a -// 0#element, in the ABNF extension described in RFC 7230 section 7) -// contains token amongst its comma-separated tokens, ASCII -// case-insensitively. -func headerValueContainsToken(v string, token string) bool { - v = trimOWS(v) - if comma := strings.IndexByte(v, ','); comma != -1 { - return tokenEqual(trimOWS(v[:comma]), token) || headerValueContainsToken(v[comma+1:], token) - } - return tokenEqual(v, token) -} - -// lowerASCII returns the ASCII lowercase version of b. -func lowerASCII(b byte) byte { - if 'A' <= b && b <= 'Z' { - return b + ('a' - 'A') - } - return b -} - -// tokenEqual reports whether t1 and t2 are equal, ASCII case-insensitively. -func tokenEqual(t1, t2 string) bool { - if len(t1) != len(t2) { - return false - } - for i, b := range t1 { - if b >= utf8.RuneSelf { - // No UTF-8 or non-ASCII allowed in tokens. - return false - } - if lowerASCII(byte(b)) != lowerASCII(t2[i]) { - return false - } - } - return true -} - -// isLWS reports whether b is linear white space, according -// to http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.2 -// LWS = [CRLF] 1*( SP | HT ) -func isLWS(b byte) bool { return b == ' ' || b == '\t' } - -// isCTL reports whether b is a control byte, according -// to http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.2 -// CTL = <any US-ASCII control character -// (octets 0 - 31) and DEL (127)> -func isCTL(b byte) bool { - const del = 0x7f // a CTL - return b < ' ' || b == del -} - -// ValidHeaderFieldName reports whether v is a valid HTTP/1.x header name. -// HTTP/2 imposes the additional restriction that uppercase ASCII -// letters are not allowed. -// -// RFC 7230 says: -// header-field = field-name ":" OWS field-value OWS -// field-name = token -// token = 1*tchar -// tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" / "." / -// "^" / "_" / "`" / "|" / "~" / DIGIT / ALPHA -func ValidHeaderFieldName(v string) bool { - if len(v) == 0 { - return false - } - for _, r := range v { - if !IsTokenRune(r) { - return false - } - } - return true -} - -// ValidHostHeader reports whether h is a valid host header. -func ValidHostHeader(h string) bool { - // The latest spec is actually this: - // - // http://tools.ietf.org/html/rfc7230#section-5.4 - // Host = uri-host [ ":" port ] - // - // Where uri-host is: - // http://tools.ietf.org/html/rfc3986#section-3.2.2 - // - // But we're going to be much more lenient for now and just - // search for any byte that's not a valid byte in any of those - // expressions. - for i := 0; i < len(h); i++ { - if !validHostByte[h[i]] { - return false - } - } - return true -} - -// See the validHostHeader comment. -var validHostByte = [256]bool{ - '0': true, '1': true, '2': true, '3': true, '4': true, '5': true, '6': true, '7': true, - '8': true, '9': true, - - 'a': true, 'b': true, 'c': true, 'd': true, 'e': true, 'f': true, 'g': true, 'h': true, - 'i': true, 'j': true, 'k': true, 'l': true, 'm': true, 'n': true, 'o': true, 'p': true, - 'q': true, 'r': true, 's': true, 't': true, 'u': true, 'v': true, 'w': true, 'x': true, - 'y': true, 'z': true, - - 'A': true, 'B': true, 'C': true, 'D': true, 'E': true, 'F': true, 'G': true, 'H': true, - 'I': true, 'J': true, 'K': true, 'L': true, 'M': true, 'N': true, 'O': true, 'P': true, - 'Q': true, 'R': true, 'S': true, 'T': true, 'U': true, 'V': true, 'W': true, 'X': true, - 'Y': true, 'Z': true, - - '!': true, // sub-delims - '$': true, // sub-delims - '%': true, // pct-encoded (and used in IPv6 zones) - '&': true, // sub-delims - '(': true, // sub-delims - ')': true, // sub-delims - '*': true, // sub-delims - '+': true, // sub-delims - ',': true, // sub-delims - '-': true, // unreserved - '.': true, // unreserved - ':': true, // IPv6address + Host expression's optional port - ';': true, // sub-delims - '=': true, // sub-delims - '[': true, - '\'': true, // sub-delims - ']': true, - '_': true, // unreserved - '~': true, // unreserved -} - -// ValidHeaderFieldValue reports whether v is a valid "field-value" according to -// http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2 : -// -// message-header = field-name ":" [ field-value ] -// field-value = *( field-content | LWS ) -// field-content = <the OCTETs making up the field-value -// and consisting of either *TEXT or combinations -// of token, separators, and quoted-string> -// -// http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.2 : -// -// TEXT = <any OCTET except CTLs, -// but including LWS> -// LWS = [CRLF] 1*( SP | HT ) -// CTL = <any US-ASCII control character -// (octets 0 - 31) and DEL (127)> -// -// RFC 7230 says: -// field-value = *( field-content / obs-fold ) -// obj-fold = N/A to http2, and deprecated -// field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ] -// field-vchar = VCHAR / obs-text -// obs-text = %x80-FF -// VCHAR = "any visible [USASCII] character" -// -// http2 further says: "Similarly, HTTP/2 allows header field values -// that are not valid. While most of the values that can be encoded -// will not alter header field parsing, carriage return (CR, ASCII -// 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII -// 0x0) might be exploited by an attacker if they are translated -// verbatim. Any request or response that contains a character not -// permitted in a header field value MUST be treated as malformed -// (Section 8.1.2.6). Valid characters are defined by the -// field-content ABNF rule in Section 3.2 of [RFC7230]." -// -// This function does not (yet?) properly handle the rejection of -// strings that begin or end with SP or HTAB. -func ValidHeaderFieldValue(v string) bool { - for i := 0; i < len(v); i++ { - b := v[i] - if isCTL(b) && !isLWS(b) { - return false - } - } - return true -} diff --git a/vendor/golang.org/x/net/websocket/LICENSE b/vendor/golang.org/x/net/websocket/LICENSE deleted file mode 100644 index 6a66aea5..00000000 --- a/vendor/golang.org/x/net/websocket/LICENSE +++ /dev/null @@ -1,27 +0,0 @@ -Copyright (c) 2009 The Go Authors. All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are -met: - - * Redistributions of source code must retain the above copyright -notice, this list of conditions and the following disclaimer. - * Redistributions in binary form must reproduce the above -copyright notice, this list of conditions and the following disclaimer -in the documentation and/or other materials provided with the -distribution. - * Neither the name of Google Inc. nor the names of its -contributors may be used to endorse or promote products derived from -this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |