summaryrefslogtreecommitdiffstats
path: root/vendor/github.com/pelletier/go-toml/query/query.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/github.com/pelletier/go-toml/query/query.go')
-rw-r--r--vendor/github.com/pelletier/go-toml/query/query.go158
1 files changed, 0 insertions, 158 deletions
diff --git a/vendor/github.com/pelletier/go-toml/query/query.go b/vendor/github.com/pelletier/go-toml/query/query.go
deleted file mode 100644
index 1c6cd801..00000000
--- a/vendor/github.com/pelletier/go-toml/query/query.go
+++ /dev/null
@@ -1,158 +0,0 @@
-package query
-
-import (
- "time"
-
- "github.com/pelletier/go-toml"
-)
-
-// NodeFilterFn represents a user-defined filter function, for use with
-// Query.SetFilter().
-//
-// The return value of the function must indicate if 'node' is to be included
-// at this stage of the TOML path. Returning true will include the node, and
-// returning false will exclude it.
-//
-// NOTE: Care should be taken to write script callbacks such that they are safe
-// to use from multiple goroutines.
-type NodeFilterFn func(node interface{}) bool
-
-// Result is the result of Executing a Query.
-type Result struct {
- items []interface{}
- positions []toml.Position
-}
-
-// appends a value/position pair to the result set.
-func (r *Result) appendResult(node interface{}, pos toml.Position) {
- r.items = append(r.items, node)
- r.positions = append(r.positions, pos)
-}
-
-// Values is a set of values within a Result. The order of values is not
-// guaranteed to be in document order, and may be different each time a query is
-// executed.
-func (r Result) Values() []interface{} {
- return r.items
-}
-
-// Positions is a set of positions for values within a Result. Each index
-// in Positions() corresponds to the entry in Value() of the same index.
-func (r Result) Positions() []toml.Position {
- return r.positions
-}
-
-// runtime context for executing query paths
-type queryContext struct {
- result *Result
- filters *map[string]NodeFilterFn
- lastPosition toml.Position
-}
-
-// generic path functor interface
-type pathFn interface {
- setNext(next pathFn)
- // it is the caller's responsibility to set the ctx.lastPosition before invoking call()
- // node can be one of: *toml.Tree, []*toml.Tree, or a scalar
- call(node interface{}, ctx *queryContext)
-}
-
-// A Query is the representation of a compiled TOML path. A Query is safe
-// for concurrent use by multiple goroutines.
-type Query struct {
- root pathFn
- tail pathFn
- filters *map[string]NodeFilterFn
-}
-
-func newQuery() *Query {
- return &Query{
- root: nil,
- tail: nil,
- filters: &defaultFilterFunctions,
- }
-}
-
-func (q *Query) appendPath(next pathFn) {
- if q.root == nil {
- q.root = next
- } else {
- q.tail.setNext(next)
- }
- q.tail = next
- next.setNext(newTerminatingFn()) // init the next functor
-}
-
-// Compile compiles a TOML path expression. The returned Query can be used
-// to match elements within a Tree and its descendants. See Execute.
-func Compile(path string) (*Query, error) {
- return parseQuery(lexQuery(path))
-}
-
-// Execute executes a query against a Tree, and returns the result of the query.
-func (q *Query) Execute(tree *toml.Tree) *Result {
- result := &Result{
- items: []interface{}{},
- positions: []toml.Position{},
- }
- if q.root == nil {
- result.appendResult(tree, tree.GetPosition(""))
- } else {
- ctx := &queryContext{
- result: result,
- filters: q.filters,
- }
- ctx.lastPosition = tree.Position()
- q.root.call(tree, ctx)
- }
- return result
-}
-
-// CompileAndExecute is a shorthand for Compile(path) followed by Execute(tree).
-func CompileAndExecute(path string, tree *toml.Tree) (*Result, error) {
- query, err := Compile(path)
- if err != nil {
- return nil, err
- }
- return query.Execute(tree), nil
-}
-
-// SetFilter sets a user-defined filter function. These may be used inside
-// "?(..)" query expressions to filter TOML document elements within a query.
-func (q *Query) SetFilter(name string, fn NodeFilterFn) {
- if q.filters == &defaultFilterFunctions {
- // clone the static table
- q.filters = &map[string]NodeFilterFn{}
- for k, v := range defaultFilterFunctions {
- (*q.filters)[k] = v
- }
- }
- (*q.filters)[name] = fn
-}
-
-var defaultFilterFunctions = map[string]NodeFilterFn{
- "tree": func(node interface{}) bool {
- _, ok := node.(*toml.Tree)
- return ok
- },
- "int": func(node interface{}) bool {
- _, ok := node.(int64)
- return ok
- },
- "float": func(node interface{}) bool {
- _, ok := node.(float64)
- return ok
- },
- "string": func(node interface{}) bool {
- _, ok := node.(string)
- return ok
- },
- "time": func(node interface{}) bool {
- _, ok := node.(time.Time)
- return ok
- },
- "bool": func(node interface{}) bool {
- _, ok := node.(bool)
- return ok
- },
-}