diff options
Diffstat (limited to 'vendor/github.com/russross/blackfriday')
-rw-r--r-- | vendor/github.com/russross/blackfriday/.gitignore | 8 | ||||
-rw-r--r-- | vendor/github.com/russross/blackfriday/.travis.yml | 30 | ||||
-rw-r--r-- | vendor/github.com/russross/blackfriday/README.md | 363 | ||||
-rw-r--r-- | vendor/github.com/russross/blackfriday/block.go | 28 | ||||
-rw-r--r-- | vendor/github.com/russross/blackfriday/doc.go | 32 | ||||
-rw-r--r-- | vendor/github.com/russross/blackfriday/html.go | 3 | ||||
-rw-r--r-- | vendor/github.com/russross/blackfriday/inline.go | 8 | ||||
-rw-r--r-- | vendor/github.com/russross/blackfriday/markdown.go | 13 | ||||
-rw-r--r-- | vendor/github.com/russross/blackfriday/smartypants.go | 58 |
9 files changed, 519 insertions, 24 deletions
diff --git a/vendor/github.com/russross/blackfriday/.gitignore b/vendor/github.com/russross/blackfriday/.gitignore new file mode 100644 index 00000000..75623dcc --- /dev/null +++ b/vendor/github.com/russross/blackfriday/.gitignore @@ -0,0 +1,8 @@ +*.out +*.swp +*.8 +*.6 +_obj +_test* +markdown +tags diff --git a/vendor/github.com/russross/blackfriday/.travis.yml b/vendor/github.com/russross/blackfriday/.travis.yml new file mode 100644 index 00000000..a1687f17 --- /dev/null +++ b/vendor/github.com/russross/blackfriday/.travis.yml @@ -0,0 +1,30 @@ +sudo: false +language: go +go: + - 1.5.4 + - 1.6.2 + - tip +matrix: + include: + - go: 1.2.2 + script: + - go get -t -v ./... + - go test -v -race ./... + - go: 1.3.3 + script: + - go get -t -v ./... + - go test -v -race ./... + - go: 1.4.3 + script: + - go get -t -v ./... + - go test -v -race ./... + allow_failures: + - go: tip + fast_finish: true +install: + - # Do nothing. This is needed to prevent default install action "go get -t -v ./..." from happening here (we want it to happen inside script step). +script: + - go get -t -v ./... + - diff -u <(echo -n) <(gofmt -d -s .) + - go tool vet . + - go test -v -race ./... diff --git a/vendor/github.com/russross/blackfriday/README.md b/vendor/github.com/russross/blackfriday/README.md new file mode 100644 index 00000000..a6c94b79 --- /dev/null +++ b/vendor/github.com/russross/blackfriday/README.md @@ -0,0 +1,363 @@ +Blackfriday +[![Build Status][BuildSVG]][BuildURL] +[![Godoc][GodocV2SVG]][GodocV2URL] +=========== + +Blackfriday is a [Markdown][1] processor implemented in [Go][2]. It +is paranoid about its input (so you can safely feed it user-supplied +data), it is fast, it supports common extensions (tables, smart +punctuation substitutions, etc.), and it is safe for all utf-8 +(unicode) input. + +HTML output is currently supported, along with Smartypants +extensions. + +It started as a translation from C of [Sundown][3]. + + +Installation +------------ + +Blackfriday is compatible with any modern Go release. With Go and git installed: + + go get -u gopkg.in/russross/blackfriday.v2 + +will download, compile, and install the package into your `$GOPATH` directory +hierarchy. + + +Versions +-------- + +Currently maintained and recommended version of Blackfriday is `v2`. It's being +developed on its own branch: https://github.com/russross/blackfriday/tree/v2 and the +documentation is available at +https://godoc.org/gopkg.in/russross/blackfriday.v2. + +It is `go get`-able via via [gopkg.in][6] at `gopkg.in/russross/blackfriday.v2`, +but we highly recommend using package management tool like [dep][7] or +[Glide][8] and make use of semantic versioning. With package management you +should import `github.com/russross/blackfriday` and specify that you're using +version 2.0.0. + +Version 2 offers a number of improvements over v1: + +* Cleaned up API +* A separate call to [`Parse`][4], which produces an abstract syntax tree for + the document +* Latest bug fixes +* Flexibility to easily add your own rendering extensions + +Potential drawbacks: + +* Our benchmarks show v2 to be slightly slower than v1. Currently in the + ballpark of around 15%. +* API breakage. If you can't afford modifying your code to adhere to the new API + and don't care too much about the new features, v2 is probably not for you. +* Several bug fixes are trailing behind and still need to be forward-ported to + v2. See issue [#348](https://github.com/russross/blackfriday/issues/348) for + tracking. + +If you are still interested in the legacy `v1`, you can import it from +`github.com/russross/blackfriday`. Documentation for the legacy v1 can be found +here: https://godoc.org/github.com/russross/blackfriday + +### Known issue with `dep` + +There is a known problem with using Blackfriday v1 _transitively_ and `dep`. +Currently `dep` prioritizes semver versions over anything else, and picks the +latest one, plus it does not apply a `[[constraint]]` specifier to transitively +pulled in packages. So if you're using something that uses Blackfriday v1, but +that something does not use `dep` yet, you will get Blackfriday v2 pulled in and +your first dependency will fail to build. + +There are couple of fixes for it, documented here: +https://github.com/golang/dep/blob/master/docs/FAQ.md#how-do-i-constrain-a-transitive-dependencys-version + +Meanwhile, `dep` team is working on a more general solution to the constraints +on transitive dependencies problem: https://github.com/golang/dep/issues/1124. + + +Usage +----- + +### v1 + +For basic usage, it is as simple as getting your input into a byte +slice and calling: + + output := blackfriday.MarkdownBasic(input) + +This renders it with no extensions enabled. To get a more useful +feature set, use this instead: + + output := blackfriday.MarkdownCommon(input) + +### v2 + +For the most sensible markdown processing, it is as simple as getting your input +into a byte slice and calling: + +```go +output := blackfriday.Run(input) +``` + +Your input will be parsed and the output rendered with a set of most popular +extensions enabled. If you want the most basic feature set, corresponding with +the bare Markdown specification, use: + +```go +output := blackfriday.Run(input, blackfriday.WithNoExtensions()) +``` + +### Sanitize untrusted content + +Blackfriday itself does nothing to protect against malicious content. If you are +dealing with user-supplied markdown, we recommend running Blackfriday's output +through HTML sanitizer such as [Bluemonday][5]. + +Here's an example of simple usage of Blackfriday together with Bluemonday: + +```go +import ( + "github.com/microcosm-cc/bluemonday" + "gopkg.in/russross/blackfriday.v2" +) + +// ... +unsafe := blackfriday.Run(input) +html := bluemonday.UGCPolicy().SanitizeBytes(unsafe) +``` + +### Custom options, v1 + +If you want to customize the set of options, first get a renderer +(currently only the HTML output engine), then use it to +call the more general `Markdown` function. For examples, see the +implementations of `MarkdownBasic` and `MarkdownCommon` in +`markdown.go`. + +### Custom options, v2 + +If you want to customize the set of options, use `blackfriday.WithExtensions`, +`blackfriday.WithRenderer` and `blackfriday.WithRefOverride`. + +### `blackfriday-tool` + +You can also check out `blackfriday-tool` for a more complete example +of how to use it. Download and install it using: + + go get github.com/russross/blackfriday-tool + +This is a simple command-line tool that allows you to process a +markdown file using a standalone program. You can also browse the +source directly on github if you are just looking for some example +code: + +* <http://github.com/russross/blackfriday-tool> + +Note that if you have not already done so, installing +`blackfriday-tool` will be sufficient to download and install +blackfriday in addition to the tool itself. The tool binary will be +installed in `$GOPATH/bin`. This is a statically-linked binary that +can be copied to wherever you need it without worrying about +dependencies and library versions. + +### Sanitized anchor names + +Blackfriday includes an algorithm for creating sanitized anchor names +corresponding to a given input text. This algorithm is used to create +anchors for headings when `EXTENSION_AUTO_HEADER_IDS` is enabled. The +algorithm has a specification, so that other packages can create +compatible anchor names and links to those anchors. + +The specification is located at https://godoc.org/github.com/russross/blackfriday#hdr-Sanitized_Anchor_Names. + +[`SanitizedAnchorName`](https://godoc.org/github.com/russross/blackfriday#SanitizedAnchorName) exposes this functionality, and can be used to +create compatible links to the anchor names generated by blackfriday. +This algorithm is also implemented in a small standalone package at +[`github.com/shurcooL/sanitized_anchor_name`](https://godoc.org/github.com/shurcooL/sanitized_anchor_name). It can be useful for clients +that want a small package and don't need full functionality of blackfriday. + + +Features +-------- + +All features of Sundown are supported, including: + +* **Compatibility**. The Markdown v1.0.3 test suite passes with + the `--tidy` option. Without `--tidy`, the differences are + mostly in whitespace and entity escaping, where blackfriday is + more consistent and cleaner. + +* **Common extensions**, including table support, fenced code + blocks, autolinks, strikethroughs, non-strict emphasis, etc. + +* **Safety**. Blackfriday is paranoid when parsing, making it safe + to feed untrusted user input without fear of bad things + happening. The test suite stress tests this and there are no + known inputs that make it crash. If you find one, please let me + know and send me the input that does it. + + NOTE: "safety" in this context means *runtime safety only*. In order to + protect yourself against JavaScript injection in untrusted content, see + [this example](https://github.com/russross/blackfriday#sanitize-untrusted-content). + +* **Fast processing**. It is fast enough to render on-demand in + most web applications without having to cache the output. + +* **Thread safety**. You can run multiple parsers in different + goroutines without ill effect. There is no dependence on global + shared state. + +* **Minimal dependencies**. Blackfriday only depends on standard + library packages in Go. The source code is pretty + self-contained, so it is easy to add to any project, including + Google App Engine projects. + +* **Standards compliant**. Output successfully validates using the + W3C validation tool for HTML 4.01 and XHTML 1.0 Transitional. + + +Extensions +---------- + +In addition to the standard markdown syntax, this package +implements the following extensions: + +* **Intra-word emphasis supression**. The `_` character is + commonly used inside words when discussing code, so having + markdown interpret it as an emphasis command is usually the + wrong thing. Blackfriday lets you treat all emphasis markers as + normal characters when they occur inside a word. + +* **Tables**. Tables can be created by drawing them in the input + using a simple syntax: + + ``` + Name | Age + --------|------ + Bob | 27 + Alice | 23 + ``` + +* **Fenced code blocks**. In addition to the normal 4-space + indentation to mark code blocks, you can explicitly mark them + and supply a language (to make syntax highlighting simple). Just + mark it like this: + + ``` go + func getTrue() bool { + return true + } + ``` + + You can use 3 or more backticks to mark the beginning of the + block, and the same number to mark the end of the block. + + To preserve classes of fenced code blocks while using the bluemonday + HTML sanitizer, use the following policy: + + ``` go + p := bluemonday.UGCPolicy() + p.AllowAttrs("class").Matching(regexp.MustCompile("^language-[a-zA-Z0-9]+$")).OnElements("code") + html := p.SanitizeBytes(unsafe) + ``` + +* **Definition lists**. A simple definition list is made of a single-line + term followed by a colon and the definition for that term. + + Cat + : Fluffy animal everyone likes + + Internet + : Vector of transmission for pictures of cats + + Terms must be separated from the previous definition by a blank line. + +* **Footnotes**. A marker in the text that will become a superscript number; + a footnote definition that will be placed in a list of footnotes at the + end of the document. A footnote looks like this: + + This is a footnote.[^1] + + [^1]: the footnote text. + +* **Autolinking**. Blackfriday can find URLs that have not been + explicitly marked as links and turn them into links. + +* **Strikethrough**. Use two tildes (`~~`) to mark text that + should be crossed out. + +* **Hard line breaks**. With this extension enabled (it is off by + default in the `MarkdownBasic` and `MarkdownCommon` convenience + functions), newlines in the input translate into line breaks in + the output. + +* **Smart quotes**. Smartypants-style punctuation substitution is + supported, turning normal double- and single-quote marks into + curly quotes, etc. + +* **LaTeX-style dash parsing** is an additional option, where `--` + is translated into `–`, and `---` is translated into + `—`. This differs from most smartypants processors, which + turn a single hyphen into an ndash and a double hyphen into an + mdash. + +* **Smart fractions**, where anything that looks like a fraction + is translated into suitable HTML (instead of just a few special + cases like most smartypant processors). For example, `4/5` + becomes `<sup>4</sup>⁄<sub>5</sub>`, which renders as + <sup>4</sup>⁄<sub>5</sub>. + + +Other renderers +--------------- + +Blackfriday is structured to allow alternative rendering engines. Here +are a few of note: + +* [github_flavored_markdown](https://godoc.org/github.com/shurcooL/github_flavored_markdown): + provides a GitHub Flavored Markdown renderer with fenced code block + highlighting, clickable heading anchor links. + + It's not customizable, and its goal is to produce HTML output + equivalent to the [GitHub Markdown API endpoint](https://developer.github.com/v3/markdown/#render-a-markdown-document-in-raw-mode), + except the rendering is performed locally. + +* [markdownfmt](https://github.com/shurcooL/markdownfmt): like gofmt, + but for markdown. + +* [LaTeX output](https://bitbucket.org/ambrevar/blackfriday-latex): + renders output as LaTeX. + + +TODO +---- + +* More unit testing +* Improve Unicode support. It does not understand all Unicode + rules (about what constitutes a letter, a punctuation symbol, + etc.), so it may fail to detect word boundaries correctly in + some instances. It is safe on all UTF-8 input. + + +License +------- + +[Blackfriday is distributed under the Simplified BSD License](LICENSE.txt) + + + [1]: https://daringfireball.net/projects/markdown/ "Markdown" + [2]: https://golang.org/ "Go Language" + [3]: https://github.com/vmg/sundown "Sundown" + [4]: https://godoc.org/gopkg.in/russross/blackfriday.v2#Parse "Parse func" + [5]: https://github.com/microcosm-cc/bluemonday "Bluemonday" + [6]: https://labix.org/gopkg.in "gopkg.in" + [7]: https://github.com/golang/dep/ "dep" + [8]: https://github.com/Masterminds/glide "Glide" + + [BuildSVG]: https://travis-ci.org/russross/blackfriday.svg?branch=master + [BuildURL]: https://travis-ci.org/russross/blackfriday + [GodocV2SVG]: https://godoc.org/gopkg.in/russross/blackfriday.v2?status.svg + [GodocV2URL]: https://godoc.org/gopkg.in/russross/blackfriday.v2 diff --git a/vendor/github.com/russross/blackfriday/block.go b/vendor/github.com/russross/blackfriday/block.go index 9cf451f0..7fc731d5 100644 --- a/vendor/github.com/russross/blackfriday/block.go +++ b/vendor/github.com/russross/blackfriday/block.go @@ -15,8 +15,7 @@ package blackfriday import ( "bytes" - - "github.com/shurcooL/sanitized_anchor_name" + "unicode" ) // Parse block-level data. @@ -243,7 +242,7 @@ func (p *parser) prefixHeader(out *bytes.Buffer, data []byte) int { } if end > i { if id == "" && p.flags&EXTENSION_AUTO_HEADER_IDS != 0 { - id = sanitized_anchor_name.Create(string(data[i:end])) + id = SanitizedAnchorName(string(data[i:end])) } work := func() bool { p.inline(out, data[i:end]) @@ -1364,7 +1363,7 @@ func (p *parser) paragraph(out *bytes.Buffer, data []byte) int { id := "" if p.flags&EXTENSION_AUTO_HEADER_IDS != 0 { - id = sanitized_anchor_name.Create(string(data[prev:eol])) + id = SanitizedAnchorName(string(data[prev:eol])) } p.r.Header(out, work, level, id) @@ -1428,3 +1427,24 @@ func (p *parser) paragraph(out *bytes.Buffer, data []byte) int { p.renderParagraph(out, data[:i]) return i } + +// SanitizedAnchorName returns a sanitized anchor name for the given text. +// +// It implements the algorithm specified in the package comment. +func SanitizedAnchorName(text string) string { + var anchorName []rune + futureDash := false + for _, r := range text { + switch { + case unicode.IsLetter(r) || unicode.IsNumber(r): + if futureDash && len(anchorName) > 0 { + anchorName = append(anchorName, '-') + } + futureDash = false + anchorName = append(anchorName, unicode.ToLower(r)) + default: + futureDash = true + } + } + return string(anchorName) +} diff --git a/vendor/github.com/russross/blackfriday/doc.go b/vendor/github.com/russross/blackfriday/doc.go new file mode 100644 index 00000000..9656c42a --- /dev/null +++ b/vendor/github.com/russross/blackfriday/doc.go @@ -0,0 +1,32 @@ +// Package blackfriday is a Markdown processor. +// +// It translates plain text with simple formatting rules into HTML or LaTeX. +// +// Sanitized Anchor Names +// +// Blackfriday includes an algorithm for creating sanitized anchor names +// corresponding to a given input text. This algorithm is used to create +// anchors for headings when EXTENSION_AUTO_HEADER_IDS is enabled. The +// algorithm is specified below, so that other packages can create +// compatible anchor names and links to those anchors. +// +// The algorithm iterates over the input text, interpreted as UTF-8, +// one Unicode code point (rune) at a time. All runes that are letters (category L) +// or numbers (category N) are considered valid characters. They are mapped to +// lower case, and included in the output. All other runes are considered +// invalid characters. Invalid characters that preceed the first valid character, +// as well as invalid character that follow the last valid character +// are dropped completely. All other sequences of invalid characters +// between two valid characters are replaced with a single dash character '-'. +// +// SanitizedAnchorName exposes this functionality, and can be used to +// create compatible links to the anchor names generated by blackfriday. +// This algorithm is also implemented in a small standalone package at +// github.com/shurcooL/sanitized_anchor_name. It can be useful for clients +// that want a small package and don't need full functionality of blackfriday. +package blackfriday + +// NOTE: Keep Sanitized Anchor Name algorithm in sync with package +// github.com/shurcooL/sanitized_anchor_name. +// Otherwise, users of sanitized_anchor_name will get anchor names +// that are incompatible with those generated by blackfriday. diff --git a/vendor/github.com/russross/blackfriday/html.go b/vendor/github.com/russross/blackfriday/html.go index 74e67ee8..c917c7d3 100644 --- a/vendor/github.com/russross/blackfriday/html.go +++ b/vendor/github.com/russross/blackfriday/html.go @@ -42,6 +42,7 @@ const ( HTML_SMARTYPANTS_DASHES // enable smart dashes (with HTML_USE_SMARTYPANTS) HTML_SMARTYPANTS_LATEX_DASHES // enable LaTeX-style dashes (with HTML_USE_SMARTYPANTS and HTML_SMARTYPANTS_DASHES) HTML_SMARTYPANTS_ANGLED_QUOTES // enable angled double quotes (with HTML_USE_SMARTYPANTS) for double quotes rendering + HTML_SMARTYPANTS_QUOTES_NBSP // enable "French guillemets" (with HTML_USE_SMARTYPANTS) HTML_FOOTNOTE_RETURN_LINKS // generate a link at the end of a footnote to return to the source ) @@ -619,7 +620,7 @@ func (options *Html) FootnoteRef(out *bytes.Buffer, ref []byte, id int) { out.WriteString(`fnref:`) out.WriteString(options.parameters.FootnoteAnchorPrefix) out.Write(slug) - out.WriteString(`"><a rel="footnote" href="#`) + out.WriteString(`"><a href="#`) out.WriteString(`fn:`) out.WriteString(options.parameters.FootnoteAnchorPrefix) out.Write(slug) diff --git a/vendor/github.com/russross/blackfriday/inline.go b/vendor/github.com/russross/blackfriday/inline.go index cb00ed68..4483b8f1 100644 --- a/vendor/github.com/russross/blackfriday/inline.go +++ b/vendor/github.com/russross/blackfriday/inline.go @@ -170,6 +170,10 @@ func lineBreak(p *parser, out *bytes.Buffer, data []byte, offset int) int { precededByBackslash := offset >= 1 && data[offset-1] == '\\' // see http://spec.commonmark.org/0.18/#example-527 precededByBackslash = precededByBackslash && p.flags&EXTENSION_BACKSLASH_LINE_BREAK != 0 + if p.flags&EXTENSION_JOIN_LINES != 0 { + return 1 + } + // should there be a hard line break here? if p.flags&EXTENSION_HARD_LINE_BREAK == 0 && !precededByTwoSpaces && !precededByBackslash { return 0 @@ -484,6 +488,7 @@ func link(p *parser, out *bytes.Buffer, data []byte, offset int) int { } p.notes = append(p.notes, ref) + p.notesRecord[string(ref.link)] = struct{}{} link = ref.link title = ref.title @@ -494,9 +499,10 @@ func link(p *parser, out *bytes.Buffer, data []byte, offset int) int { return 0 } - if t == linkDeferredFootnote { + if t == linkDeferredFootnote && !p.isFootnote(lr) { lr.noteId = len(p.notes) + 1 p.notes = append(p.notes, lr) + p.notesRecord[string(lr.link)] = struct{}{} } // keep link and title from reference diff --git a/vendor/github.com/russross/blackfriday/markdown.go b/vendor/github.com/russross/blackfriday/markdown.go index 58ba68de..1722a738 100644 --- a/vendor/github.com/russross/blackfriday/markdown.go +++ b/vendor/github.com/russross/blackfriday/markdown.go @@ -13,9 +13,6 @@ // // -// Blackfriday markdown processor. -// -// Translates plain text with simple formatting rules into HTML or LaTeX. package blackfriday import ( @@ -46,6 +43,7 @@ const ( EXTENSION_AUTO_HEADER_IDS // Create the header ID from the text EXTENSION_BACKSLASH_LINE_BREAK // translate trailing backslashes into line breaks EXTENSION_DEFINITION_LISTS // render definition lists + EXTENSION_JOIN_LINES // delete newline and join lines commonHtmlFlags = 0 | HTML_USE_XHTML | @@ -220,7 +218,8 @@ type parser struct { // Footnotes need to be ordered as well as available to quickly check for // presence. If a ref is also a footnote, it's stored both in refs and here // in notes. Slice is nil if footnotes not enabled. - notes []*reference + notes []*reference + notesRecord map[string]struct{} } func (p *parser) getRef(refid string) (ref *reference, found bool) { @@ -243,6 +242,11 @@ func (p *parser) getRef(refid string) (ref *reference, found bool) { return ref, found } +func (p *parser) isFootnote(ref *reference) bool { + _, ok := p.notesRecord[string(ref.link)] + return ok +} + // // // Public interface @@ -378,6 +382,7 @@ func MarkdownOptions(input []byte, renderer Renderer, opts Options) []byte { if extensions&EXTENSION_FOOTNOTES != 0 { p.notes = make([]*reference, 0) + p.notesRecord = make(map[string]struct{}) } first := firstPass(p, input) diff --git a/vendor/github.com/russross/blackfriday/smartypants.go b/vendor/github.com/russross/blackfriday/smartypants.go index eeffa5e1..f25bd07d 100644 --- a/vendor/github.com/russross/blackfriday/smartypants.go +++ b/vendor/github.com/russross/blackfriday/smartypants.go @@ -39,7 +39,7 @@ func isdigit(c byte) bool { return c >= '0' && c <= '9' } -func smartQuoteHelper(out *bytes.Buffer, previousChar byte, nextChar byte, quote byte, isOpen *bool) bool { +func smartQuoteHelper(out *bytes.Buffer, previousChar byte, nextChar byte, quote byte, isOpen *bool, addNBSP bool) bool { // edge of the buffer is likely to be a tag that we don't get to see, // so we treat it like text sometimes @@ -96,6 +96,12 @@ func smartQuoteHelper(out *bytes.Buffer, previousChar byte, nextChar byte, quote *isOpen = false } + // Note that with the limited lookahead, this non-breaking + // space will also be appended to single double quotes. + if addNBSP && !*isOpen { + out.WriteString(" ") + } + out.WriteByte('&') if *isOpen { out.WriteByte('l') @@ -104,6 +110,11 @@ func smartQuoteHelper(out *bytes.Buffer, previousChar byte, nextChar byte, quote } out.WriteByte(quote) out.WriteString("quo;") + + if addNBSP && *isOpen { + out.WriteString(" ") + } + return true } @@ -116,7 +127,7 @@ func smartSingleQuote(out *bytes.Buffer, smrt *smartypantsData, previousChar byt if len(text) >= 3 { nextChar = text[2] } - if smartQuoteHelper(out, previousChar, nextChar, 'd', &smrt.inDoubleQuote) { + if smartQuoteHelper(out, previousChar, nextChar, 'd', &smrt.inDoubleQuote, false) { return 1 } } @@ -141,7 +152,7 @@ func smartSingleQuote(out *bytes.Buffer, smrt *smartypantsData, previousChar byt if len(text) > 1 { nextChar = text[1] } - if smartQuoteHelper(out, previousChar, nextChar, 's', &smrt.inSingleQuote) { + if smartQuoteHelper(out, previousChar, nextChar, 's', &smrt.inSingleQuote, false) { return 0 } @@ -205,13 +216,13 @@ func smartDashLatex(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, return 0 } -func smartAmpVariant(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte, quote byte) int { +func smartAmpVariant(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte, quote byte, addNBSP bool) int { if bytes.HasPrefix(text, []byte(""")) { nextChar := byte(0) if len(text) >= 7 { nextChar = text[6] } - if smartQuoteHelper(out, previousChar, nextChar, quote, &smrt.inDoubleQuote) { + if smartQuoteHelper(out, previousChar, nextChar, quote, &smrt.inDoubleQuote, addNBSP) { return 5 } } @@ -224,12 +235,15 @@ func smartAmpVariant(out *bytes.Buffer, smrt *smartypantsData, previousChar byte return 0 } -func smartAmp(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int { - return smartAmpVariant(out, smrt, previousChar, text, 'd') -} +func smartAmp(angledQuotes, addNBSP bool) func(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int { + var quote byte = 'd' + if angledQuotes { + quote = 'a' + } -func smartAmpAngledQuote(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int { - return smartAmpVariant(out, smrt, previousChar, text, 'a') + return func(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int { + return smartAmpVariant(out, smrt, previousChar, text, quote, addNBSP) + } } func smartPeriod(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int { @@ -253,7 +267,7 @@ func smartBacktick(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, if len(text) >= 3 { nextChar = text[2] } - if smartQuoteHelper(out, previousChar, nextChar, 'd', &smrt.inDoubleQuote) { + if smartQuoteHelper(out, previousChar, nextChar, 'd', &smrt.inDoubleQuote, false) { return 1 } } @@ -337,7 +351,7 @@ func smartDoubleQuoteVariant(out *bytes.Buffer, smrt *smartypantsData, previousC if len(text) > 1 { nextChar = text[1] } - if !smartQuoteHelper(out, previousChar, nextChar, quote, &smrt.inDoubleQuote) { + if !smartQuoteHelper(out, previousChar, nextChar, quote, &smrt.inDoubleQuote, false) { out.WriteString(""") } @@ -367,14 +381,30 @@ type smartCallback func(out *bytes.Buffer, smrt *smartypantsData, previousChar b type smartypantsRenderer [256]smartCallback +var ( + smartAmpAngled = smartAmp(true, false) + smartAmpAngledNBSP = smartAmp(true, true) + smartAmpRegular = smartAmp(false, false) + smartAmpRegularNBSP = smartAmp(false, true) +) + func smartypants(flags int) *smartypantsRenderer { r := new(smartypantsRenderer) + addNBSP := flags&HTML_SMARTYPANTS_QUOTES_NBSP != 0 if flags&HTML_SMARTYPANTS_ANGLED_QUOTES == 0 { r['"'] = smartDoubleQuote - r['&'] = smartAmp + if !addNBSP { + r['&'] = smartAmpRegular + } else { + r['&'] = smartAmpRegularNBSP + } } else { r['"'] = smartAngledDoubleQuote - r['&'] = smartAmpAngledQuote + if !addNBSP { + r['&'] = smartAmpAngled + } else { + r['&'] = smartAmpAngledNBSP + } } r['\''] = smartSingleQuote r['('] = smartParens |