mirror of
https://github.com/cwinfo/matterbridge.git
synced 2024-12-24 03:25:40 +00:00
Release v0.9.1
This commit is contained in:
parent
6df6c5d615
commit
f8a6e65bfd
@ -36,12 +36,12 @@ docker run -ti -v /tmp/matterbridge.toml:/matterbridge.toml 42wim/matterbridge
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## binaries
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Binaries can be found [here] (https://github.com/42wim/matterbridge/releases/)
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* For use with mattermost 3.5.0+ [v0.9.0](https://github.com/42wim/matterircd/releases/tag/v0.9.0)
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* For use with mattermost 3.5.x - 3.6.0 [v0.9.1](https://github.com/42wim/matterircd/releases/tag/v0.9.1)
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* For use with mattermost 3.3.0 - 3.4.0 [v0.7.1](https://github.com/42wim/matterircd/releases/tag/v0.7.1)
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## Compatibility
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### Mattermost
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* Matterbridge v0.9.0 works with mattermost 3.5.0+ [3.5.1 release](https://github.com/mattermost/platform/releases/tag/v3.5.1)
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* Matterbridge v0.9.1 works with mattermost 3.5.x - 3.6.0 [3.6.0 release](https://github.com/mattermost/platform/releases/tag/v3.6.0)
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* Matterbridge v0.7.1 works with mattermost 3.3.0 - 3.4.0 [3.4.0 release](https://github.com/mattermost/platform/releases/tag/v3.4.0)
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#### Webhooks version
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@ -1,4 +1,4 @@
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# v0.9.1-dev
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# v0.9.1
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## New features
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* Rocket.Chat: New protocol support added (https://rocket.chat)
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* irc: add channel key support #27 (see matterbrige.toml.sample for example)
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@ -9,7 +9,7 @@ import (
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log "github.com/Sirupsen/logrus"
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)
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var version = "0.9.1-dev"
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var version = "0.9.1"
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func init() {
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log.SetFormatter(&log.TextFormatter{FullTimestamp: true})
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|
29
vendor/github.com/russross/blackfriday/LICENSE.txt
generated
vendored
Normal file
29
vendor/github.com/russross/blackfriday/LICENSE.txt
generated
vendored
Normal file
@ -0,0 +1,29 @@
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Blackfriday is distributed under the Simplified BSD License:
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> Copyright © 2011 Russ Ross
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> All rights reserved.
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>
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> Redistribution and use in source and binary forms, with or without
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> modification, are permitted provided that the following conditions
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> are met:
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>
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> 1. Redistributions of source code must retain the above copyright
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> notice, this list of conditions and the following disclaimer.
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>
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> 2. Redistributions in binary form must reproduce the above
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> copyright notice, this list of conditions and the following
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> disclaimer in the documentation and/or other materials provided with
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> the distribution.
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>
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> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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> "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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> LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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> FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
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> COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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> INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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> BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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||||
> LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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> CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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||||
> LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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||||
> ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
> POSSIBILITY OF SUCH DAMAGE.
|
1430
vendor/github.com/russross/blackfriday/block.go
generated
vendored
Normal file
1430
vendor/github.com/russross/blackfriday/block.go
generated
vendored
Normal file
File diff suppressed because it is too large
Load Diff
949
vendor/github.com/russross/blackfriday/html.go
generated
vendored
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949
vendor/github.com/russross/blackfriday/html.go
generated
vendored
Normal file
@ -0,0 +1,949 @@
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//
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// Blackfriday Markdown Processor
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// Available at http://github.com/russross/blackfriday
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//
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// Copyright © 2011 Russ Ross <russ@russross.com>.
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// Distributed under the Simplified BSD License.
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// See README.md for details.
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//
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//
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//
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// HTML rendering backend
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//
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//
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package blackfriday
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import (
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"bytes"
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"fmt"
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"regexp"
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"strconv"
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"strings"
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)
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// Html renderer configuration options.
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const (
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HTML_SKIP_HTML = 1 << iota // skip preformatted HTML blocks
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HTML_SKIP_STYLE // skip embedded <style> elements
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HTML_SKIP_IMAGES // skip embedded images
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HTML_SKIP_LINKS // skip all links
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HTML_SAFELINK // only link to trusted protocols
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HTML_NOFOLLOW_LINKS // only link with rel="nofollow"
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HTML_NOREFERRER_LINKS // only link with rel="noreferrer"
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HTML_HREF_TARGET_BLANK // add a blank target
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HTML_TOC // generate a table of contents
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HTML_OMIT_CONTENTS // skip the main contents (for a standalone table of contents)
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HTML_COMPLETE_PAGE // generate a complete HTML page
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HTML_USE_XHTML // generate XHTML output instead of HTML
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HTML_USE_SMARTYPANTS // enable smart punctuation substitutions
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HTML_SMARTYPANTS_FRACTIONS // enable smart fractions (with HTML_USE_SMARTYPANTS)
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HTML_SMARTYPANTS_DASHES // enable smart dashes (with HTML_USE_SMARTYPANTS)
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HTML_SMARTYPANTS_LATEX_DASHES // enable LaTeX-style dashes (with HTML_USE_SMARTYPANTS and HTML_SMARTYPANTS_DASHES)
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HTML_SMARTYPANTS_ANGLED_QUOTES // enable angled double quotes (with HTML_USE_SMARTYPANTS) for double quotes rendering
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HTML_FOOTNOTE_RETURN_LINKS // generate a link at the end of a footnote to return to the source
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)
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var (
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alignments = []string{
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"left",
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"right",
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"center",
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}
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// TODO: improve this regexp to catch all possible entities:
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htmlEntity = regexp.MustCompile(`&[a-z]{2,5};`)
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)
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type HtmlRendererParameters struct {
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// Prepend this text to each relative URL.
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AbsolutePrefix string
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// Add this text to each footnote anchor, to ensure uniqueness.
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FootnoteAnchorPrefix string
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// Show this text inside the <a> tag for a footnote return link, if the
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// HTML_FOOTNOTE_RETURN_LINKS flag is enabled. If blank, the string
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// <sup>[return]</sup> is used.
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FootnoteReturnLinkContents string
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// If set, add this text to the front of each Header ID, to ensure
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// uniqueness.
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HeaderIDPrefix string
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// If set, add this text to the back of each Header ID, to ensure uniqueness.
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HeaderIDSuffix string
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}
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// Html is a type that implements the Renderer interface for HTML output.
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//
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// Do not create this directly, instead use the HtmlRenderer function.
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type Html struct {
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flags int // HTML_* options
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closeTag string // how to end singleton tags: either " />" or ">"
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title string // document title
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css string // optional css file url (used with HTML_COMPLETE_PAGE)
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parameters HtmlRendererParameters
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// table of contents data
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tocMarker int
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headerCount int
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currentLevel int
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toc *bytes.Buffer
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// Track header IDs to prevent ID collision in a single generation.
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headerIDs map[string]int
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smartypants *smartypantsRenderer
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}
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const (
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xhtmlClose = " />"
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htmlClose = ">"
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)
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// HtmlRenderer creates and configures an Html object, which
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// satisfies the Renderer interface.
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//
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// flags is a set of HTML_* options ORed together.
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// title is the title of the document, and css is a URL for the document's
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// stylesheet.
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// title and css are only used when HTML_COMPLETE_PAGE is selected.
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func HtmlRenderer(flags int, title string, css string) Renderer {
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return HtmlRendererWithParameters(flags, title, css, HtmlRendererParameters{})
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}
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func HtmlRendererWithParameters(flags int, title string,
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css string, renderParameters HtmlRendererParameters) Renderer {
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// configure the rendering engine
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closeTag := htmlClose
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if flags&HTML_USE_XHTML != 0 {
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closeTag = xhtmlClose
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}
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if renderParameters.FootnoteReturnLinkContents == "" {
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renderParameters.FootnoteReturnLinkContents = `<sup>[return]</sup>`
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}
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return &Html{
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flags: flags,
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closeTag: closeTag,
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title: title,
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css: css,
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parameters: renderParameters,
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headerCount: 0,
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currentLevel: 0,
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toc: new(bytes.Buffer),
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headerIDs: make(map[string]int),
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smartypants: smartypants(flags),
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}
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}
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// Using if statements is a bit faster than a switch statement. As the compiler
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// improves, this should be unnecessary this is only worthwhile because
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// attrEscape is the single largest CPU user in normal use.
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// Also tried using map, but that gave a ~3x slowdown.
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func escapeSingleChar(char byte) (string, bool) {
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if char == '"' {
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return """, true
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}
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if char == '&' {
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return "&", true
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}
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if char == '<' {
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return "<", true
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}
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||||
if char == '>' {
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return ">", true
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}
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return "", false
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}
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func attrEscape(out *bytes.Buffer, src []byte) {
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org := 0
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for i, ch := range src {
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if entity, ok := escapeSingleChar(ch); ok {
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if i > org {
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// copy all the normal characters since the last escape
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out.Write(src[org:i])
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}
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org = i + 1
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out.WriteString(entity)
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}
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}
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||||
if org < len(src) {
|
||||
out.Write(src[org:])
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||||
}
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}
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||||
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||||
func entityEscapeWithSkip(out *bytes.Buffer, src []byte, skipRanges [][]int) {
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||||
end := 0
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for _, rang := range skipRanges {
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attrEscape(out, src[end:rang[0]])
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out.Write(src[rang[0]:rang[1]])
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||||
end = rang[1]
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}
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||||
attrEscape(out, src[end:])
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}
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||||
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||||
func (options *Html) GetFlags() int {
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return options.flags
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}
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||||
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||||
func (options *Html) TitleBlock(out *bytes.Buffer, text []byte) {
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||||
text = bytes.TrimPrefix(text, []byte("% "))
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text = bytes.Replace(text, []byte("\n% "), []byte("\n"), -1)
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||||
out.WriteString("<h1 class=\"title\">")
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out.Write(text)
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out.WriteString("\n</h1>")
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}
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||||
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||||
func (options *Html) Header(out *bytes.Buffer, text func() bool, level int, id string) {
|
||||
marker := out.Len()
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doubleSpace(out)
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||||
|
||||
if id == "" && options.flags&HTML_TOC != 0 {
|
||||
id = fmt.Sprintf("toc_%d", options.headerCount)
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}
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|
||||
if id != "" {
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||||
id = options.ensureUniqueHeaderID(id)
|
||||
|
||||
if options.parameters.HeaderIDPrefix != "" {
|
||||
id = options.parameters.HeaderIDPrefix + id
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||||
}
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||||
|
||||
if options.parameters.HeaderIDSuffix != "" {
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||||
id = id + options.parameters.HeaderIDSuffix
|
||||
}
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||||
|
||||
out.WriteString(fmt.Sprintf("<h%d id=\"%s\">", level, id))
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||||
} else {
|
||||
out.WriteString(fmt.Sprintf("<h%d>", level))
|
||||
}
|
||||
|
||||
tocMarker := out.Len()
|
||||
if !text() {
|
||||
out.Truncate(marker)
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||||
return
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}
|
||||
|
||||
// are we building a table of contents?
|
||||
if options.flags&HTML_TOC != 0 {
|
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options.TocHeaderWithAnchor(out.Bytes()[tocMarker:], level, id)
|
||||
}
|
||||
|
||||
out.WriteString(fmt.Sprintf("</h%d>\n", level))
|
||||
}
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||||
|
||||
func (options *Html) BlockHtml(out *bytes.Buffer, text []byte) {
|
||||
if options.flags&HTML_SKIP_HTML != 0 {
|
||||
return
|
||||
}
|
||||
|
||||
doubleSpace(out)
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||||
out.Write(text)
|
||||
out.WriteByte('\n')
|
||||
}
|
||||
|
||||
func (options *Html) HRule(out *bytes.Buffer) {
|
||||
doubleSpace(out)
|
||||
out.WriteString("<hr")
|
||||
out.WriteString(options.closeTag)
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||||
out.WriteByte('\n')
|
||||
}
|
||||
|
||||
func (options *Html) BlockCode(out *bytes.Buffer, text []byte, lang string) {
|
||||
doubleSpace(out)
|
||||
|
||||
// parse out the language names/classes
|
||||
count := 0
|
||||
for _, elt := range strings.Fields(lang) {
|
||||
if elt[0] == '.' {
|
||||
elt = elt[1:]
|
||||
}
|
||||
if len(elt) == 0 {
|
||||
continue
|
||||
}
|
||||
if count == 0 {
|
||||
out.WriteString("<pre><code class=\"language-")
|
||||
} else {
|
||||
out.WriteByte(' ')
|
||||
}
|
||||
attrEscape(out, []byte(elt))
|
||||
count++
|
||||
}
|
||||
|
||||
if count == 0 {
|
||||
out.WriteString("<pre><code>")
|
||||
} else {
|
||||
out.WriteString("\">")
|
||||
}
|
||||
|
||||
attrEscape(out, text)
|
||||
out.WriteString("</code></pre>\n")
|
||||
}
|
||||
|
||||
func (options *Html) BlockQuote(out *bytes.Buffer, text []byte) {
|
||||
doubleSpace(out)
|
||||
out.WriteString("<blockquote>\n")
|
||||
out.Write(text)
|
||||
out.WriteString("</blockquote>\n")
|
||||
}
|
||||
|
||||
func (options *Html) Table(out *bytes.Buffer, header []byte, body []byte, columnData []int) {
|
||||
doubleSpace(out)
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out.WriteString("<table>\n<thead>\n")
|
||||
out.Write(header)
|
||||
out.WriteString("</thead>\n\n<tbody>\n")
|
||||
out.Write(body)
|
||||
out.WriteString("</tbody>\n</table>\n")
|
||||
}
|
||||
|
||||
func (options *Html) TableRow(out *bytes.Buffer, text []byte) {
|
||||
doubleSpace(out)
|
||||
out.WriteString("<tr>\n")
|
||||
out.Write(text)
|
||||
out.WriteString("\n</tr>\n")
|
||||
}
|
||||
|
||||
func (options *Html) TableHeaderCell(out *bytes.Buffer, text []byte, align int) {
|
||||
doubleSpace(out)
|
||||
switch align {
|
||||
case TABLE_ALIGNMENT_LEFT:
|
||||
out.WriteString("<th align=\"left\">")
|
||||
case TABLE_ALIGNMENT_RIGHT:
|
||||
out.WriteString("<th align=\"right\">")
|
||||
case TABLE_ALIGNMENT_CENTER:
|
||||
out.WriteString("<th align=\"center\">")
|
||||
default:
|
||||
out.WriteString("<th>")
|
||||
}
|
||||
|
||||
out.Write(text)
|
||||
out.WriteString("</th>")
|
||||
}
|
||||
|
||||
func (options *Html) TableCell(out *bytes.Buffer, text []byte, align int) {
|
||||
doubleSpace(out)
|
||||
switch align {
|
||||
case TABLE_ALIGNMENT_LEFT:
|
||||
out.WriteString("<td align=\"left\">")
|
||||
case TABLE_ALIGNMENT_RIGHT:
|
||||
out.WriteString("<td align=\"right\">")
|
||||
case TABLE_ALIGNMENT_CENTER:
|
||||
out.WriteString("<td align=\"center\">")
|
||||
default:
|
||||
out.WriteString("<td>")
|
||||
}
|
||||
|
||||
out.Write(text)
|
||||
out.WriteString("</td>")
|
||||
}
|
||||
|
||||
func (options *Html) Footnotes(out *bytes.Buffer, text func() bool) {
|
||||
out.WriteString("<div class=\"footnotes\">\n")
|
||||
options.HRule(out)
|
||||
options.List(out, text, LIST_TYPE_ORDERED)
|
||||
out.WriteString("</div>\n")
|
||||
}
|
||||
|
||||
func (options *Html) FootnoteItem(out *bytes.Buffer, name, text []byte, flags int) {
|
||||
if flags&LIST_ITEM_CONTAINS_BLOCK != 0 || flags&LIST_ITEM_BEGINNING_OF_LIST != 0 {
|
||||
doubleSpace(out)
|
||||
}
|
||||
slug := slugify(name)
|
||||
out.WriteString(`<li id="`)
|
||||
out.WriteString(`fn:`)
|
||||
out.WriteString(options.parameters.FootnoteAnchorPrefix)
|
||||
out.Write(slug)
|
||||
out.WriteString(`">`)
|
||||
out.Write(text)
|
||||
if options.flags&HTML_FOOTNOTE_RETURN_LINKS != 0 {
|
||||
out.WriteString(` <a class="footnote-return" href="#`)
|
||||
out.WriteString(`fnref:`)
|
||||
out.WriteString(options.parameters.FootnoteAnchorPrefix)
|
||||
out.Write(slug)
|
||||
out.WriteString(`">`)
|
||||
out.WriteString(options.parameters.FootnoteReturnLinkContents)
|
||||
out.WriteString(`</a>`)
|
||||
}
|
||||
out.WriteString("</li>\n")
|
||||
}
|
||||
|
||||
func (options *Html) List(out *bytes.Buffer, text func() bool, flags int) {
|
||||
marker := out.Len()
|
||||
doubleSpace(out)
|
||||
|
||||
if flags&LIST_TYPE_DEFINITION != 0 {
|
||||
out.WriteString("<dl>")
|
||||
} else if flags&LIST_TYPE_ORDERED != 0 {
|
||||
out.WriteString("<ol>")
|
||||
} else {
|
||||
out.WriteString("<ul>")
|
||||
}
|
||||
if !text() {
|
||||
out.Truncate(marker)
|
||||
return
|
||||
}
|
||||
if flags&LIST_TYPE_DEFINITION != 0 {
|
||||
out.WriteString("</dl>\n")
|
||||
} else if flags&LIST_TYPE_ORDERED != 0 {
|
||||
out.WriteString("</ol>\n")
|
||||
} else {
|
||||
out.WriteString("</ul>\n")
|
||||
}
|
||||
}
|
||||
|
||||
func (options *Html) ListItem(out *bytes.Buffer, text []byte, flags int) {
|
||||
if (flags&LIST_ITEM_CONTAINS_BLOCK != 0 && flags&LIST_TYPE_DEFINITION == 0) ||
|
||||
flags&LIST_ITEM_BEGINNING_OF_LIST != 0 {
|
||||
doubleSpace(out)
|
||||
}
|
||||
if flags&LIST_TYPE_TERM != 0 {
|
||||
out.WriteString("<dt>")
|
||||
} else if flags&LIST_TYPE_DEFINITION != 0 {
|
||||
out.WriteString("<dd>")
|
||||
} else {
|
||||
out.WriteString("<li>")
|
||||
}
|
||||
out.Write(text)
|
||||
if flags&LIST_TYPE_TERM != 0 {
|
||||
out.WriteString("</dt>\n")
|
||||
} else if flags&LIST_TYPE_DEFINITION != 0 {
|
||||
out.WriteString("</dd>\n")
|
||||
} else {
|
||||
out.WriteString("</li>\n")
|
||||
}
|
||||
}
|
||||
|
||||
func (options *Html) Paragraph(out *bytes.Buffer, text func() bool) {
|
||||
marker := out.Len()
|
||||
doubleSpace(out)
|
||||
|
||||
out.WriteString("<p>")
|
||||
if !text() {
|
||||
out.Truncate(marker)
|
||||
return
|
||||
}
|
||||
out.WriteString("</p>\n")
|
||||
}
|
||||
|
||||
func (options *Html) AutoLink(out *bytes.Buffer, link []byte, kind int) {
|
||||
skipRanges := htmlEntity.FindAllIndex(link, -1)
|
||||
if options.flags&HTML_SAFELINK != 0 && !isSafeLink(link) && kind != LINK_TYPE_EMAIL {
|
||||
// mark it but don't link it if it is not a safe link: no smartypants
|
||||
out.WriteString("<tt>")
|
||||
entityEscapeWithSkip(out, link, skipRanges)
|
||||
out.WriteString("</tt>")
|
||||
return
|
||||
}
|
||||
|
||||
out.WriteString("<a href=\"")
|
||||
if kind == LINK_TYPE_EMAIL {
|
||||
out.WriteString("mailto:")
|
||||
} else {
|
||||
options.maybeWriteAbsolutePrefix(out, link)
|
||||
}
|
||||
|
||||
entityEscapeWithSkip(out, link, skipRanges)
|
||||
|
||||
var relAttrs []string
|
||||
if options.flags&HTML_NOFOLLOW_LINKS != 0 && !isRelativeLink(link) {
|
||||
relAttrs = append(relAttrs, "nofollow")
|
||||
}
|
||||
if options.flags&HTML_NOREFERRER_LINKS != 0 && !isRelativeLink(link) {
|
||||
relAttrs = append(relAttrs, "noreferrer")
|
||||
}
|
||||
if len(relAttrs) > 0 {
|
||||
out.WriteString(fmt.Sprintf("\" rel=\"%s", strings.Join(relAttrs, " ")))
|
||||
}
|
||||
|
||||
// blank target only add to external link
|
||||
if options.flags&HTML_HREF_TARGET_BLANK != 0 && !isRelativeLink(link) {
|
||||
out.WriteString("\" target=\"_blank")
|
||||
}
|
||||
|
||||
out.WriteString("\">")
|
||||
|
||||
// Pretty print: if we get an email address as
|
||||
// an actual URI, e.g. `mailto:foo@bar.com`, we don't
|
||||
// want to print the `mailto:` prefix
|
||||
switch {
|
||||
case bytes.HasPrefix(link, []byte("mailto://")):
|
||||
attrEscape(out, link[len("mailto://"):])
|
||||
case bytes.HasPrefix(link, []byte("mailto:")):
|
||||
attrEscape(out, link[len("mailto:"):])
|
||||
default:
|
||||
entityEscapeWithSkip(out, link, skipRanges)
|
||||
}
|
||||
|
||||
out.WriteString("</a>")
|
||||
}
|
||||
|
||||
func (options *Html) CodeSpan(out *bytes.Buffer, text []byte) {
|
||||
out.WriteString("<code>")
|
||||
attrEscape(out, text)
|
||||
out.WriteString("</code>")
|
||||
}
|
||||
|
||||
func (options *Html) DoubleEmphasis(out *bytes.Buffer, text []byte) {
|
||||
out.WriteString("<strong>")
|
||||
out.Write(text)
|
||||
out.WriteString("</strong>")
|
||||
}
|
||||
|
||||
func (options *Html) Emphasis(out *bytes.Buffer, text []byte) {
|
||||
if len(text) == 0 {
|
||||
return
|
||||
}
|
||||
out.WriteString("<em>")
|
||||
out.Write(text)
|
||||
out.WriteString("</em>")
|
||||
}
|
||||
|
||||
func (options *Html) maybeWriteAbsolutePrefix(out *bytes.Buffer, link []byte) {
|
||||
if options.parameters.AbsolutePrefix != "" && isRelativeLink(link) && link[0] != '.' {
|
||||
out.WriteString(options.parameters.AbsolutePrefix)
|
||||
if link[0] != '/' {
|
||||
out.WriteByte('/')
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (options *Html) Image(out *bytes.Buffer, link []byte, title []byte, alt []byte) {
|
||||
if options.flags&HTML_SKIP_IMAGES != 0 {
|
||||
return
|
||||
}
|
||||
|
||||
out.WriteString("<img src=\"")
|
||||
options.maybeWriteAbsolutePrefix(out, link)
|
||||
attrEscape(out, link)
|
||||
out.WriteString("\" alt=\"")
|
||||
if len(alt) > 0 {
|
||||
attrEscape(out, alt)
|
||||
}
|
||||
if len(title) > 0 {
|
||||
out.WriteString("\" title=\"")
|
||||
attrEscape(out, title)
|
||||
}
|
||||
|
||||
out.WriteByte('"')
|
||||
out.WriteString(options.closeTag)
|
||||
}
|
||||
|
||||
func (options *Html) LineBreak(out *bytes.Buffer) {
|
||||
out.WriteString("<br")
|
||||
out.WriteString(options.closeTag)
|
||||
out.WriteByte('\n')
|
||||
}
|
||||
|
||||
func (options *Html) Link(out *bytes.Buffer, link []byte, title []byte, content []byte) {
|
||||
if options.flags&HTML_SKIP_LINKS != 0 {
|
||||
// write the link text out but don't link it, just mark it with typewriter font
|
||||
out.WriteString("<tt>")
|
||||
attrEscape(out, content)
|
||||
out.WriteString("</tt>")
|
||||
return
|
||||
}
|
||||
|
||||
if options.flags&HTML_SAFELINK != 0 && !isSafeLink(link) {
|
||||
// write the link text out but don't link it, just mark it with typewriter font
|
||||
out.WriteString("<tt>")
|
||||
attrEscape(out, content)
|
||||
out.WriteString("</tt>")
|
||||
return
|
||||
}
|
||||
|
||||
out.WriteString("<a href=\"")
|
||||
options.maybeWriteAbsolutePrefix(out, link)
|
||||
attrEscape(out, link)
|
||||
if len(title) > 0 {
|
||||
out.WriteString("\" title=\"")
|
||||
attrEscape(out, title)
|
||||
}
|
||||
var relAttrs []string
|
||||
if options.flags&HTML_NOFOLLOW_LINKS != 0 && !isRelativeLink(link) {
|
||||
relAttrs = append(relAttrs, "nofollow")
|
||||
}
|
||||
if options.flags&HTML_NOREFERRER_LINKS != 0 && !isRelativeLink(link) {
|
||||
relAttrs = append(relAttrs, "noreferrer")
|
||||
}
|
||||
if len(relAttrs) > 0 {
|
||||
out.WriteString(fmt.Sprintf("\" rel=\"%s", strings.Join(relAttrs, " ")))
|
||||
}
|
||||
|
||||
// blank target only add to external link
|
||||
if options.flags&HTML_HREF_TARGET_BLANK != 0 && !isRelativeLink(link) {
|
||||
out.WriteString("\" target=\"_blank")
|
||||
}
|
||||
|
||||
out.WriteString("\">")
|
||||
out.Write(content)
|
||||
out.WriteString("</a>")
|
||||
return
|
||||
}
|
||||
|
||||
func (options *Html) RawHtmlTag(out *bytes.Buffer, text []byte) {
|
||||
if options.flags&HTML_SKIP_HTML != 0 {
|
||||
return
|
||||
}
|
||||
if options.flags&HTML_SKIP_STYLE != 0 && isHtmlTag(text, "style") {
|
||||
return
|
||||
}
|
||||
if options.flags&HTML_SKIP_LINKS != 0 && isHtmlTag(text, "a") {
|
||||
return
|
||||
}
|
||||
if options.flags&HTML_SKIP_IMAGES != 0 && isHtmlTag(text, "img") {
|
||||
return
|
||||
}
|
||||
out.Write(text)
|
||||
}
|
||||
|
||||
func (options *Html) TripleEmphasis(out *bytes.Buffer, text []byte) {
|
||||
out.WriteString("<strong><em>")
|
||||
out.Write(text)
|
||||
out.WriteString("</em></strong>")
|
||||
}
|
||||
|
||||
func (options *Html) StrikeThrough(out *bytes.Buffer, text []byte) {
|
||||
out.WriteString("<del>")
|
||||
out.Write(text)
|
||||
out.WriteString("</del>")
|
||||
}
|
||||
|
||||
func (options *Html) FootnoteRef(out *bytes.Buffer, ref []byte, id int) {
|
||||
slug := slugify(ref)
|
||||
out.WriteString(`<sup class="footnote-ref" id="`)
|
||||
out.WriteString(`fnref:`)
|
||||
out.WriteString(options.parameters.FootnoteAnchorPrefix)
|
||||
out.Write(slug)
|
||||
out.WriteString(`"><a rel="footnote" href="#`)
|
||||
out.WriteString(`fn:`)
|
||||
out.WriteString(options.parameters.FootnoteAnchorPrefix)
|
||||
out.Write(slug)
|
||||
out.WriteString(`">`)
|
||||
out.WriteString(strconv.Itoa(id))
|
||||
out.WriteString(`</a></sup>`)
|
||||
}
|
||||
|
||||
func (options *Html) Entity(out *bytes.Buffer, entity []byte) {
|
||||
out.Write(entity)
|
||||
}
|
||||
|
||||
func (options *Html) NormalText(out *bytes.Buffer, text []byte) {
|
||||
if options.flags&HTML_USE_SMARTYPANTS != 0 {
|
||||
options.Smartypants(out, text)
|
||||
} else {
|
||||
attrEscape(out, text)
|
||||
}
|
||||
}
|
||||
|
||||
func (options *Html) Smartypants(out *bytes.Buffer, text []byte) {
|
||||
smrt := smartypantsData{false, false}
|
||||
|
||||
// first do normal entity escaping
|
||||
var escaped bytes.Buffer
|
||||
attrEscape(&escaped, text)
|
||||
text = escaped.Bytes()
|
||||
|
||||
mark := 0
|
||||
for i := 0; i < len(text); i++ {
|
||||
if action := options.smartypants[text[i]]; action != nil {
|
||||
if i > mark {
|
||||
out.Write(text[mark:i])
|
||||
}
|
||||
|
||||
previousChar := byte(0)
|
||||
if i > 0 {
|
||||
previousChar = text[i-1]
|
||||
}
|
||||
i += action(out, &smrt, previousChar, text[i:])
|
||||
mark = i + 1
|
||||
}
|
||||
}
|
||||
|
||||
if mark < len(text) {
|
||||
out.Write(text[mark:])
|
||||
}
|
||||
}
|
||||
|
||||
func (options *Html) DocumentHeader(out *bytes.Buffer) {
|
||||
if options.flags&HTML_COMPLETE_PAGE == 0 {
|
||||
return
|
||||
}
|
||||
|
||||
ending := ""
|
||||
if options.flags&HTML_USE_XHTML != 0 {
|
||||
out.WriteString("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" ")
|
||||
out.WriteString("\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n")
|
||||
out.WriteString("<html xmlns=\"http://www.w3.org/1999/xhtml\">\n")
|
||||
ending = " /"
|
||||
} else {
|
||||
out.WriteString("<!DOCTYPE html>\n")
|
||||
out.WriteString("<html>\n")
|
||||
}
|
||||
out.WriteString("<head>\n")
|
||||
out.WriteString(" <title>")
|
||||
options.NormalText(out, []byte(options.title))
|
||||
out.WriteString("</title>\n")
|
||||
out.WriteString(" <meta name=\"GENERATOR\" content=\"Blackfriday Markdown Processor v")
|
||||
out.WriteString(VERSION)
|
||||
out.WriteString("\"")
|
||||
out.WriteString(ending)
|
||||
out.WriteString(">\n")
|
||||
out.WriteString(" <meta charset=\"utf-8\"")
|
||||
out.WriteString(ending)
|
||||
out.WriteString(">\n")
|
||||
if options.css != "" {
|
||||
out.WriteString(" <link rel=\"stylesheet\" type=\"text/css\" href=\"")
|
||||
attrEscape(out, []byte(options.css))
|
||||
out.WriteString("\"")
|
||||
out.WriteString(ending)
|
||||
out.WriteString(">\n")
|
||||
}
|
||||
out.WriteString("</head>\n")
|
||||
out.WriteString("<body>\n")
|
||||
|
||||
options.tocMarker = out.Len()
|
||||
}
|
||||
|
||||
func (options *Html) DocumentFooter(out *bytes.Buffer) {
|
||||
// finalize and insert the table of contents
|
||||
if options.flags&HTML_TOC != 0 {
|
||||
options.TocFinalize()
|
||||
|
||||
// now we have to insert the table of contents into the document
|
||||
var temp bytes.Buffer
|
||||
|
||||
// start by making a copy of everything after the document header
|
||||
temp.Write(out.Bytes()[options.tocMarker:])
|
||||
|
||||
// now clear the copied material from the main output buffer
|
||||
out.Truncate(options.tocMarker)
|
||||
|
||||
// corner case spacing issue
|
||||
if options.flags&HTML_COMPLETE_PAGE != 0 {
|
||||
out.WriteByte('\n')
|
||||
}
|
||||
|
||||
// insert the table of contents
|
||||
out.WriteString("<nav>\n")
|
||||
out.Write(options.toc.Bytes())
|
||||
out.WriteString("</nav>\n")
|
||||
|
||||
// corner case spacing issue
|
||||
if options.flags&HTML_COMPLETE_PAGE == 0 && options.flags&HTML_OMIT_CONTENTS == 0 {
|
||||
out.WriteByte('\n')
|
||||
}
|
||||
|
||||
// write out everything that came after it
|
||||
if options.flags&HTML_OMIT_CONTENTS == 0 {
|
||||
out.Write(temp.Bytes())
|
||||
}
|
||||
}
|
||||
|
||||
if options.flags&HTML_COMPLETE_PAGE != 0 {
|
||||
out.WriteString("\n</body>\n")
|
||||
out.WriteString("</html>\n")
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func (options *Html) TocHeaderWithAnchor(text []byte, level int, anchor string) {
|
||||
for level > options.currentLevel {
|
||||
switch {
|
||||
case bytes.HasSuffix(options.toc.Bytes(), []byte("</li>\n")):
|
||||
// this sublist can nest underneath a header
|
||||
size := options.toc.Len()
|
||||
options.toc.Truncate(size - len("</li>\n"))
|
||||
|
||||
case options.currentLevel > 0:
|
||||
options.toc.WriteString("<li>")
|
||||
}
|
||||
if options.toc.Len() > 0 {
|
||||
options.toc.WriteByte('\n')
|
||||
}
|
||||
options.toc.WriteString("<ul>\n")
|
||||
options.currentLevel++
|
||||
}
|
||||
|
||||
for level < options.currentLevel {
|
||||
options.toc.WriteString("</ul>")
|
||||
if options.currentLevel > 1 {
|
||||
options.toc.WriteString("</li>\n")
|
||||
}
|
||||
options.currentLevel--
|
||||
}
|
||||
|
||||
options.toc.WriteString("<li><a href=\"#")
|
||||
if anchor != "" {
|
||||
options.toc.WriteString(anchor)
|
||||
} else {
|
||||
options.toc.WriteString("toc_")
|
||||
options.toc.WriteString(strconv.Itoa(options.headerCount))
|
||||
}
|
||||
options.toc.WriteString("\">")
|
||||
options.headerCount++
|
||||
|
||||
options.toc.Write(text)
|
||||
|
||||
options.toc.WriteString("</a></li>\n")
|
||||
}
|
||||
|
||||
func (options *Html) TocHeader(text []byte, level int) {
|
||||
options.TocHeaderWithAnchor(text, level, "")
|
||||
}
|
||||
|
||||
func (options *Html) TocFinalize() {
|
||||
for options.currentLevel > 1 {
|
||||
options.toc.WriteString("</ul></li>\n")
|
||||
options.currentLevel--
|
||||
}
|
||||
|
||||
if options.currentLevel > 0 {
|
||||
options.toc.WriteString("</ul>\n")
|
||||
}
|
||||
}
|
||||
|
||||
func isHtmlTag(tag []byte, tagname string) bool {
|
||||
found, _ := findHtmlTagPos(tag, tagname)
|
||||
return found
|
||||
}
|
||||
|
||||
// Look for a character, but ignore it when it's in any kind of quotes, it
|
||||
// might be JavaScript
|
||||
func skipUntilCharIgnoreQuotes(html []byte, start int, char byte) int {
|
||||
inSingleQuote := false
|
||||
inDoubleQuote := false
|
||||
inGraveQuote := false
|
||||
i := start
|
||||
for i < len(html) {
|
||||
switch {
|
||||
case html[i] == char && !inSingleQuote && !inDoubleQuote && !inGraveQuote:
|
||||
return i
|
||||
case html[i] == '\'':
|
||||
inSingleQuote = !inSingleQuote
|
||||
case html[i] == '"':
|
||||
inDoubleQuote = !inDoubleQuote
|
||||
case html[i] == '`':
|
||||
inGraveQuote = !inGraveQuote
|
||||
}
|
||||
i++
|
||||
}
|
||||
return start
|
||||
}
|
||||
|
||||
func findHtmlTagPos(tag []byte, tagname string) (bool, int) {
|
||||
i := 0
|
||||
if i < len(tag) && tag[0] != '<' {
|
||||
return false, -1
|
||||
}
|
||||
i++
|
||||
i = skipSpace(tag, i)
|
||||
|
||||
if i < len(tag) && tag[i] == '/' {
|
||||
i++
|
||||
}
|
||||
|
||||
i = skipSpace(tag, i)
|
||||
j := 0
|
||||
for ; i < len(tag); i, j = i+1, j+1 {
|
||||
if j >= len(tagname) {
|
||||
break
|
||||
}
|
||||
|
||||
if strings.ToLower(string(tag[i]))[0] != tagname[j] {
|
||||
return false, -1
|
||||
}
|
||||
}
|
||||
|
||||
if i == len(tag) {
|
||||
return false, -1
|
||||
}
|
||||
|
||||
rightAngle := skipUntilCharIgnoreQuotes(tag, i, '>')
|
||||
if rightAngle > i {
|
||||
return true, rightAngle
|
||||
}
|
||||
|
||||
return false, -1
|
||||
}
|
||||
|
||||
func skipUntilChar(text []byte, start int, char byte) int {
|
||||
i := start
|
||||
for i < len(text) && text[i] != char {
|
||||
i++
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
func skipSpace(tag []byte, i int) int {
|
||||
for i < len(tag) && isspace(tag[i]) {
|
||||
i++
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
func skipChar(data []byte, start int, char byte) int {
|
||||
i := start
|
||||
for i < len(data) && data[i] == char {
|
||||
i++
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
func doubleSpace(out *bytes.Buffer) {
|
||||
if out.Len() > 0 {
|
||||
out.WriteByte('\n')
|
||||
}
|
||||
}
|
||||
|
||||
func isRelativeLink(link []byte) (yes bool) {
|
||||
// a tag begin with '#'
|
||||
if link[0] == '#' {
|
||||
return true
|
||||
}
|
||||
|
||||
// link begin with '/' but not '//', the second maybe a protocol relative link
|
||||
if len(link) >= 2 && link[0] == '/' && link[1] != '/' {
|
||||
return true
|
||||
}
|
||||
|
||||
// only the root '/'
|
||||
if len(link) == 1 && link[0] == '/' {
|
||||
return true
|
||||
}
|
||||
|
||||
// current directory : begin with "./"
|
||||
if bytes.HasPrefix(link, []byte("./")) {
|
||||
return true
|
||||
}
|
||||
|
||||
// parent directory : begin with "../"
|
||||
if bytes.HasPrefix(link, []byte("../")) {
|
||||
return true
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
|
||||
func (options *Html) ensureUniqueHeaderID(id string) string {
|
||||
for count, found := options.headerIDs[id]; found; count, found = options.headerIDs[id] {
|
||||
tmp := fmt.Sprintf("%s-%d", id, count+1)
|
||||
|
||||
if _, tmpFound := options.headerIDs[tmp]; !tmpFound {
|
||||
options.headerIDs[id] = count + 1
|
||||
id = tmp
|
||||
} else {
|
||||
id = id + "-1"
|
||||
}
|
||||
}
|
||||
|
||||
if _, found := options.headerIDs[id]; !found {
|
||||
options.headerIDs[id] = 0
|
||||
}
|
||||
|
||||
return id
|
||||
}
|
1148
vendor/github.com/russross/blackfriday/inline.go
generated
vendored
Normal file
1148
vendor/github.com/russross/blackfriday/inline.go
generated
vendored
Normal file
File diff suppressed because it is too large
Load Diff
332
vendor/github.com/russross/blackfriday/latex.go
generated
vendored
Normal file
332
vendor/github.com/russross/blackfriday/latex.go
generated
vendored
Normal file
@ -0,0 +1,332 @@
|
||||
//
|
||||
// Blackfriday Markdown Processor
|
||||
// Available at http://github.com/russross/blackfriday
|
||||
//
|
||||
// Copyright © 2011 Russ Ross <russ@russross.com>.
|
||||
// Distributed under the Simplified BSD License.
|
||||
// See README.md for details.
|
||||
//
|
||||
|
||||
//
|
||||
//
|
||||
// LaTeX rendering backend
|
||||
//
|
||||
//
|
||||
|
||||
package blackfriday
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
)
|
||||
|
||||
// Latex is a type that implements the Renderer interface for LaTeX output.
|
||||
//
|
||||
// Do not create this directly, instead use the LatexRenderer function.
|
||||
type Latex struct {
|
||||
}
|
||||
|
||||
// LatexRenderer creates and configures a Latex object, which
|
||||
// satisfies the Renderer interface.
|
||||
//
|
||||
// flags is a set of LATEX_* options ORed together (currently no such options
|
||||
// are defined).
|
||||
func LatexRenderer(flags int) Renderer {
|
||||
return &Latex{}
|
||||
}
|
||||
|
||||
func (options *Latex) GetFlags() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
// render code chunks using verbatim, or listings if we have a language
|
||||
func (options *Latex) BlockCode(out *bytes.Buffer, text []byte, lang string) {
|
||||
if lang == "" {
|
||||
out.WriteString("\n\\begin{verbatim}\n")
|
||||
} else {
|
||||
out.WriteString("\n\\begin{lstlisting}[language=")
|
||||
out.WriteString(lang)
|
||||
out.WriteString("]\n")
|
||||
}
|
||||
out.Write(text)
|
||||
if lang == "" {
|
||||
out.WriteString("\n\\end{verbatim}\n")
|
||||
} else {
|
||||
out.WriteString("\n\\end{lstlisting}\n")
|
||||
}
|
||||
}
|
||||
|
||||
func (options *Latex) TitleBlock(out *bytes.Buffer, text []byte) {
|
||||
|
||||
}
|
||||
|
||||
func (options *Latex) BlockQuote(out *bytes.Buffer, text []byte) {
|
||||
out.WriteString("\n\\begin{quotation}\n")
|
||||
out.Write(text)
|
||||
out.WriteString("\n\\end{quotation}\n")
|
||||
}
|
||||
|
||||
func (options *Latex) BlockHtml(out *bytes.Buffer, text []byte) {
|
||||
// a pretty lame thing to do...
|
||||
out.WriteString("\n\\begin{verbatim}\n")
|
||||
out.Write(text)
|
||||
out.WriteString("\n\\end{verbatim}\n")
|
||||
}
|
||||
|
||||
func (options *Latex) Header(out *bytes.Buffer, text func() bool, level int, id string) {
|
||||
marker := out.Len()
|
||||
|
||||
switch level {
|
||||
case 1:
|
||||
out.WriteString("\n\\section{")
|
||||
case 2:
|
||||
out.WriteString("\n\\subsection{")
|
||||
case 3:
|
||||
out.WriteString("\n\\subsubsection{")
|
||||
case 4:
|
||||
out.WriteString("\n\\paragraph{")
|
||||
case 5:
|
||||
out.WriteString("\n\\subparagraph{")
|
||||
case 6:
|
||||
out.WriteString("\n\\textbf{")
|
||||
}
|
||||
if !text() {
|
||||
out.Truncate(marker)
|
||||
return
|
||||
}
|
||||
out.WriteString("}\n")
|
||||
}
|
||||
|
||||
func (options *Latex) HRule(out *bytes.Buffer) {
|
||||
out.WriteString("\n\\HRule\n")
|
||||
}
|
||||
|
||||
func (options *Latex) List(out *bytes.Buffer, text func() bool, flags int) {
|
||||
marker := out.Len()
|
||||
if flags&LIST_TYPE_ORDERED != 0 {
|
||||
out.WriteString("\n\\begin{enumerate}\n")
|
||||
} else {
|
||||
out.WriteString("\n\\begin{itemize}\n")
|
||||
}
|
||||
if !text() {
|
||||
out.Truncate(marker)
|
||||
return
|
||||
}
|
||||
if flags&LIST_TYPE_ORDERED != 0 {
|
||||
out.WriteString("\n\\end{enumerate}\n")
|
||||
} else {
|
||||
out.WriteString("\n\\end{itemize}\n")
|
||||
}
|
||||
}
|
||||
|
||||
func (options *Latex) ListItem(out *bytes.Buffer, text []byte, flags int) {
|
||||
out.WriteString("\n\\item ")
|
||||
out.Write(text)
|
||||
}
|
||||
|
||||
func (options *Latex) Paragraph(out *bytes.Buffer, text func() bool) {
|
||||
marker := out.Len()
|
||||
out.WriteString("\n")
|
||||
if !text() {
|
||||
out.Truncate(marker)
|
||||
return
|
||||
}
|
||||
out.WriteString("\n")
|
||||
}
|
||||
|
||||
func (options *Latex) Table(out *bytes.Buffer, header []byte, body []byte, columnData []int) {
|
||||
out.WriteString("\n\\begin{tabular}{")
|
||||
for _, elt := range columnData {
|
||||
switch elt {
|
||||
case TABLE_ALIGNMENT_LEFT:
|
||||
out.WriteByte('l')
|
||||
case TABLE_ALIGNMENT_RIGHT:
|
||||
out.WriteByte('r')
|
||||
default:
|
||||
out.WriteByte('c')
|
||||
}
|
||||
}
|
||||
out.WriteString("}\n")
|
||||
out.Write(header)
|
||||
out.WriteString(" \\\\\n\\hline\n")
|
||||
out.Write(body)
|
||||
out.WriteString("\n\\end{tabular}\n")
|
||||
}
|
||||
|
||||
func (options *Latex) TableRow(out *bytes.Buffer, text []byte) {
|
||||
if out.Len() > 0 {
|
||||
out.WriteString(" \\\\\n")
|
||||
}
|
||||
out.Write(text)
|
||||
}
|
||||
|
||||
func (options *Latex) TableHeaderCell(out *bytes.Buffer, text []byte, align int) {
|
||||
if out.Len() > 0 {
|
||||
out.WriteString(" & ")
|
||||
}
|
||||
out.Write(text)
|
||||
}
|
||||
|
||||
func (options *Latex) TableCell(out *bytes.Buffer, text []byte, align int) {
|
||||
if out.Len() > 0 {
|
||||
out.WriteString(" & ")
|
||||
}
|
||||
out.Write(text)
|
||||
}
|
||||
|
||||
// TODO: this
|
||||
func (options *Latex) Footnotes(out *bytes.Buffer, text func() bool) {
|
||||
|
||||
}
|
||||
|
||||
func (options *Latex) FootnoteItem(out *bytes.Buffer, name, text []byte, flags int) {
|
||||
|
||||
}
|
||||
|
||||
func (options *Latex) AutoLink(out *bytes.Buffer, link []byte, kind int) {
|
||||
out.WriteString("\\href{")
|
||||
if kind == LINK_TYPE_EMAIL {
|
||||
out.WriteString("mailto:")
|
||||
}
|
||||
out.Write(link)
|
||||
out.WriteString("}{")
|
||||
out.Write(link)
|
||||
out.WriteString("}")
|
||||
}
|
||||
|
||||
func (options *Latex) CodeSpan(out *bytes.Buffer, text []byte) {
|
||||
out.WriteString("\\texttt{")
|
||||
escapeSpecialChars(out, text)
|
||||
out.WriteString("}")
|
||||
}
|
||||
|
||||
func (options *Latex) DoubleEmphasis(out *bytes.Buffer, text []byte) {
|
||||
out.WriteString("\\textbf{")
|
||||
out.Write(text)
|
||||
out.WriteString("}")
|
||||
}
|
||||
|
||||
func (options *Latex) Emphasis(out *bytes.Buffer, text []byte) {
|
||||
out.WriteString("\\textit{")
|
||||
out.Write(text)
|
||||
out.WriteString("}")
|
||||
}
|
||||
|
||||
func (options *Latex) Image(out *bytes.Buffer, link []byte, title []byte, alt []byte) {
|
||||
if bytes.HasPrefix(link, []byte("http://")) || bytes.HasPrefix(link, []byte("https://")) {
|
||||
// treat it like a link
|
||||
out.WriteString("\\href{")
|
||||
out.Write(link)
|
||||
out.WriteString("}{")
|
||||
out.Write(alt)
|
||||
out.WriteString("}")
|
||||
} else {
|
||||
out.WriteString("\\includegraphics{")
|
||||
out.Write(link)
|
||||
out.WriteString("}")
|
||||
}
|
||||
}
|
||||
|
||||
func (options *Latex) LineBreak(out *bytes.Buffer) {
|
||||
out.WriteString(" \\\\\n")
|
||||
}
|
||||
|
||||
func (options *Latex) Link(out *bytes.Buffer, link []byte, title []byte, content []byte) {
|
||||
out.WriteString("\\href{")
|
||||
out.Write(link)
|
||||
out.WriteString("}{")
|
||||
out.Write(content)
|
||||
out.WriteString("}")
|
||||
}
|
||||
|
||||
func (options *Latex) RawHtmlTag(out *bytes.Buffer, tag []byte) {
|
||||
}
|
||||
|
||||
func (options *Latex) TripleEmphasis(out *bytes.Buffer, text []byte) {
|
||||
out.WriteString("\\textbf{\\textit{")
|
||||
out.Write(text)
|
||||
out.WriteString("}}")
|
||||
}
|
||||
|
||||
func (options *Latex) StrikeThrough(out *bytes.Buffer, text []byte) {
|
||||
out.WriteString("\\sout{")
|
||||
out.Write(text)
|
||||
out.WriteString("}")
|
||||
}
|
||||
|
||||
// TODO: this
|
||||
func (options *Latex) FootnoteRef(out *bytes.Buffer, ref []byte, id int) {
|
||||
|
||||
}
|
||||
|
||||
func needsBackslash(c byte) bool {
|
||||
for _, r := range []byte("_{}%$&\\~#") {
|
||||
if c == r {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func escapeSpecialChars(out *bytes.Buffer, text []byte) {
|
||||
for i := 0; i < len(text); i++ {
|
||||
// directly copy normal characters
|
||||
org := i
|
||||
|
||||
for i < len(text) && !needsBackslash(text[i]) {
|
||||
i++
|
||||
}
|
||||
if i > org {
|
||||
out.Write(text[org:i])
|
||||
}
|
||||
|
||||
// escape a character
|
||||
if i >= len(text) {
|
||||
break
|
||||
}
|
||||
out.WriteByte('\\')
|
||||
out.WriteByte(text[i])
|
||||
}
|
||||
}
|
||||
|
||||
func (options *Latex) Entity(out *bytes.Buffer, entity []byte) {
|
||||
// TODO: convert this into a unicode character or something
|
||||
out.Write(entity)
|
||||
}
|
||||
|
||||
func (options *Latex) NormalText(out *bytes.Buffer, text []byte) {
|
||||
escapeSpecialChars(out, text)
|
||||
}
|
||||
|
||||
// header and footer
|
||||
func (options *Latex) DocumentHeader(out *bytes.Buffer) {
|
||||
out.WriteString("\\documentclass{article}\n")
|
||||
out.WriteString("\n")
|
||||
out.WriteString("\\usepackage{graphicx}\n")
|
||||
out.WriteString("\\usepackage{listings}\n")
|
||||
out.WriteString("\\usepackage[margin=1in]{geometry}\n")
|
||||
out.WriteString("\\usepackage[utf8]{inputenc}\n")
|
||||
out.WriteString("\\usepackage{verbatim}\n")
|
||||
out.WriteString("\\usepackage[normalem]{ulem}\n")
|
||||
out.WriteString("\\usepackage{hyperref}\n")
|
||||
out.WriteString("\n")
|
||||
out.WriteString("\\hypersetup{colorlinks,%\n")
|
||||
out.WriteString(" citecolor=black,%\n")
|
||||
out.WriteString(" filecolor=black,%\n")
|
||||
out.WriteString(" linkcolor=black,%\n")
|
||||
out.WriteString(" urlcolor=black,%\n")
|
||||
out.WriteString(" pdfstartview=FitH,%\n")
|
||||
out.WriteString(" breaklinks=true,%\n")
|
||||
out.WriteString(" pdfauthor={Blackfriday Markdown Processor v")
|
||||
out.WriteString(VERSION)
|
||||
out.WriteString("}}\n")
|
||||
out.WriteString("\n")
|
||||
out.WriteString("\\newcommand{\\HRule}{\\rule{\\linewidth}{0.5mm}}\n")
|
||||
out.WriteString("\\addtolength{\\parskip}{0.5\\baselineskip}\n")
|
||||
out.WriteString("\\parindent=0pt\n")
|
||||
out.WriteString("\n")
|
||||
out.WriteString("\\begin{document}\n")
|
||||
}
|
||||
|
||||
func (options *Latex) DocumentFooter(out *bytes.Buffer) {
|
||||
out.WriteString("\n\\end{document}\n")
|
||||
}
|
926
vendor/github.com/russross/blackfriday/markdown.go
generated
vendored
Normal file
926
vendor/github.com/russross/blackfriday/markdown.go
generated
vendored
Normal file
@ -0,0 +1,926 @@
|
||||
//
|
||||
// Blackfriday Markdown Processor
|
||||
// Available at http://github.com/russross/blackfriday
|
||||
//
|
||||
// Copyright © 2011 Russ Ross <russ@russross.com>.
|
||||
// Distributed under the Simplified BSD License.
|
||||
// See README.md for details.
|
||||
//
|
||||
|
||||
//
|
||||
//
|
||||
// Markdown parsing and processing
|
||||
//
|
||||
//
|
||||
|
||||
// Blackfriday markdown processor.
|
||||
//
|
||||
// Translates plain text with simple formatting rules into HTML or LaTeX.
|
||||
package blackfriday
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"fmt"
|
||||
"strings"
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
const VERSION = "1.5"
|
||||
|
||||
// These are the supported markdown parsing extensions.
|
||||
// OR these values together to select multiple extensions.
|
||||
const (
|
||||
EXTENSION_NO_INTRA_EMPHASIS = 1 << iota // ignore emphasis markers inside words
|
||||
EXTENSION_TABLES // render tables
|
||||
EXTENSION_FENCED_CODE // render fenced code blocks
|
||||
EXTENSION_AUTOLINK // detect embedded URLs that are not explicitly marked
|
||||
EXTENSION_STRIKETHROUGH // strikethrough text using ~~test~~
|
||||
EXTENSION_LAX_HTML_BLOCKS // loosen up HTML block parsing rules
|
||||
EXTENSION_SPACE_HEADERS // be strict about prefix header rules
|
||||
EXTENSION_HARD_LINE_BREAK // translate newlines into line breaks
|
||||
EXTENSION_TAB_SIZE_EIGHT // expand tabs to eight spaces instead of four
|
||||
EXTENSION_FOOTNOTES // Pandoc-style footnotes
|
||||
EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK // No need to insert an empty line to start a (code, quote, ordered list, unordered list) block
|
||||
EXTENSION_HEADER_IDS // specify header IDs with {#id}
|
||||
EXTENSION_TITLEBLOCK // Titleblock ala pandoc
|
||||
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
|
||||
|
||||
commonHtmlFlags = 0 |
|
||||
HTML_USE_XHTML |
|
||||
HTML_USE_SMARTYPANTS |
|
||||
HTML_SMARTYPANTS_FRACTIONS |
|
||||
HTML_SMARTYPANTS_DASHES |
|
||||
HTML_SMARTYPANTS_LATEX_DASHES
|
||||
|
||||
commonExtensions = 0 |
|
||||
EXTENSION_NO_INTRA_EMPHASIS |
|
||||
EXTENSION_TABLES |
|
||||
EXTENSION_FENCED_CODE |
|
||||
EXTENSION_AUTOLINK |
|
||||
EXTENSION_STRIKETHROUGH |
|
||||
EXTENSION_SPACE_HEADERS |
|
||||
EXTENSION_HEADER_IDS |
|
||||
EXTENSION_BACKSLASH_LINE_BREAK |
|
||||
EXTENSION_DEFINITION_LISTS
|
||||
)
|
||||
|
||||
// These are the possible flag values for the link renderer.
|
||||
// Only a single one of these values will be used; they are not ORed together.
|
||||
// These are mostly of interest if you are writing a new output format.
|
||||
const (
|
||||
LINK_TYPE_NOT_AUTOLINK = iota
|
||||
LINK_TYPE_NORMAL
|
||||
LINK_TYPE_EMAIL
|
||||
)
|
||||
|
||||
// These are the possible flag values for the ListItem renderer.
|
||||
// Multiple flag values may be ORed together.
|
||||
// These are mostly of interest if you are writing a new output format.
|
||||
const (
|
||||
LIST_TYPE_ORDERED = 1 << iota
|
||||
LIST_TYPE_DEFINITION
|
||||
LIST_TYPE_TERM
|
||||
LIST_ITEM_CONTAINS_BLOCK
|
||||
LIST_ITEM_BEGINNING_OF_LIST
|
||||
LIST_ITEM_END_OF_LIST
|
||||
)
|
||||
|
||||
// These are the possible flag values for the table cell renderer.
|
||||
// Only a single one of these values will be used; they are not ORed together.
|
||||
// These are mostly of interest if you are writing a new output format.
|
||||
const (
|
||||
TABLE_ALIGNMENT_LEFT = 1 << iota
|
||||
TABLE_ALIGNMENT_RIGHT
|
||||
TABLE_ALIGNMENT_CENTER = (TABLE_ALIGNMENT_LEFT | TABLE_ALIGNMENT_RIGHT)
|
||||
)
|
||||
|
||||
// The size of a tab stop.
|
||||
const (
|
||||
TAB_SIZE_DEFAULT = 4
|
||||
TAB_SIZE_EIGHT = 8
|
||||
)
|
||||
|
||||
// blockTags is a set of tags that are recognized as HTML block tags.
|
||||
// Any of these can be included in markdown text without special escaping.
|
||||
var blockTags = map[string]struct{}{
|
||||
"blockquote": {},
|
||||
"del": {},
|
||||
"div": {},
|
||||
"dl": {},
|
||||
"fieldset": {},
|
||||
"form": {},
|
||||
"h1": {},
|
||||
"h2": {},
|
||||
"h3": {},
|
||||
"h4": {},
|
||||
"h5": {},
|
||||
"h6": {},
|
||||
"iframe": {},
|
||||
"ins": {},
|
||||
"math": {},
|
||||
"noscript": {},
|
||||
"ol": {},
|
||||
"pre": {},
|
||||
"p": {},
|
||||
"script": {},
|
||||
"style": {},
|
||||
"table": {},
|
||||
"ul": {},
|
||||
|
||||
// HTML5
|
||||
"address": {},
|
||||
"article": {},
|
||||
"aside": {},
|
||||
"canvas": {},
|
||||
"figcaption": {},
|
||||
"figure": {},
|
||||
"footer": {},
|
||||
"header": {},
|
||||
"hgroup": {},
|
||||
"main": {},
|
||||
"nav": {},
|
||||
"output": {},
|
||||
"progress": {},
|
||||
"section": {},
|
||||
"video": {},
|
||||
}
|
||||
|
||||
// Renderer is the rendering interface.
|
||||
// This is mostly of interest if you are implementing a new rendering format.
|
||||
//
|
||||
// When a byte slice is provided, it contains the (rendered) contents of the
|
||||
// element.
|
||||
//
|
||||
// When a callback is provided instead, it will write the contents of the
|
||||
// respective element directly to the output buffer and return true on success.
|
||||
// If the callback returns false, the rendering function should reset the
|
||||
// output buffer as though it had never been called.
|
||||
//
|
||||
// Currently Html and Latex implementations are provided
|
||||
type Renderer interface {
|
||||
// block-level callbacks
|
||||
BlockCode(out *bytes.Buffer, text []byte, lang string)
|
||||
BlockQuote(out *bytes.Buffer, text []byte)
|
||||
BlockHtml(out *bytes.Buffer, text []byte)
|
||||
Header(out *bytes.Buffer, text func() bool, level int, id string)
|
||||
HRule(out *bytes.Buffer)
|
||||
List(out *bytes.Buffer, text func() bool, flags int)
|
||||
ListItem(out *bytes.Buffer, text []byte, flags int)
|
||||
Paragraph(out *bytes.Buffer, text func() bool)
|
||||
Table(out *bytes.Buffer, header []byte, body []byte, columnData []int)
|
||||
TableRow(out *bytes.Buffer, text []byte)
|
||||
TableHeaderCell(out *bytes.Buffer, text []byte, flags int)
|
||||
TableCell(out *bytes.Buffer, text []byte, flags int)
|
||||
Footnotes(out *bytes.Buffer, text func() bool)
|
||||
FootnoteItem(out *bytes.Buffer, name, text []byte, flags int)
|
||||
TitleBlock(out *bytes.Buffer, text []byte)
|
||||
|
||||
// Span-level callbacks
|
||||
AutoLink(out *bytes.Buffer, link []byte, kind int)
|
||||
CodeSpan(out *bytes.Buffer, text []byte)
|
||||
DoubleEmphasis(out *bytes.Buffer, text []byte)
|
||||
Emphasis(out *bytes.Buffer, text []byte)
|
||||
Image(out *bytes.Buffer, link []byte, title []byte, alt []byte)
|
||||
LineBreak(out *bytes.Buffer)
|
||||
Link(out *bytes.Buffer, link []byte, title []byte, content []byte)
|
||||
RawHtmlTag(out *bytes.Buffer, tag []byte)
|
||||
TripleEmphasis(out *bytes.Buffer, text []byte)
|
||||
StrikeThrough(out *bytes.Buffer, text []byte)
|
||||
FootnoteRef(out *bytes.Buffer, ref []byte, id int)
|
||||
|
||||
// Low-level callbacks
|
||||
Entity(out *bytes.Buffer, entity []byte)
|
||||
NormalText(out *bytes.Buffer, text []byte)
|
||||
|
||||
// Header and footer
|
||||
DocumentHeader(out *bytes.Buffer)
|
||||
DocumentFooter(out *bytes.Buffer)
|
||||
|
||||
GetFlags() int
|
||||
}
|
||||
|
||||
// Callback functions for inline parsing. One such function is defined
|
||||
// for each character that triggers a response when parsing inline data.
|
||||
type inlineParser func(p *parser, out *bytes.Buffer, data []byte, offset int) int
|
||||
|
||||
// Parser holds runtime state used by the parser.
|
||||
// This is constructed by the Markdown function.
|
||||
type parser struct {
|
||||
r Renderer
|
||||
refOverride ReferenceOverrideFunc
|
||||
refs map[string]*reference
|
||||
inlineCallback [256]inlineParser
|
||||
flags int
|
||||
nesting int
|
||||
maxNesting int
|
||||
insideLink bool
|
||||
|
||||
// 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
|
||||
}
|
||||
|
||||
func (p *parser) getRef(refid string) (ref *reference, found bool) {
|
||||
if p.refOverride != nil {
|
||||
r, overridden := p.refOverride(refid)
|
||||
if overridden {
|
||||
if r == nil {
|
||||
return nil, false
|
||||
}
|
||||
return &reference{
|
||||
link: []byte(r.Link),
|
||||
title: []byte(r.Title),
|
||||
noteId: 0,
|
||||
hasBlock: false,
|
||||
text: []byte(r.Text)}, true
|
||||
}
|
||||
}
|
||||
// refs are case insensitive
|
||||
ref, found = p.refs[strings.ToLower(refid)]
|
||||
return ref, found
|
||||
}
|
||||
|
||||
//
|
||||
//
|
||||
// Public interface
|
||||
//
|
||||
//
|
||||
|
||||
// Reference represents the details of a link.
|
||||
// See the documentation in Options for more details on use-case.
|
||||
type Reference struct {
|
||||
// Link is usually the URL the reference points to.
|
||||
Link string
|
||||
// Title is the alternate text describing the link in more detail.
|
||||
Title string
|
||||
// Text is the optional text to override the ref with if the syntax used was
|
||||
// [refid][]
|
||||
Text string
|
||||
}
|
||||
|
||||
// ReferenceOverrideFunc is expected to be called with a reference string and
|
||||
// return either a valid Reference type that the reference string maps to or
|
||||
// nil. If overridden is false, the default reference logic will be executed.
|
||||
// See the documentation in Options for more details on use-case.
|
||||
type ReferenceOverrideFunc func(reference string) (ref *Reference, overridden bool)
|
||||
|
||||
// Options represents configurable overrides and callbacks (in addition to the
|
||||
// extension flag set) for configuring a Markdown parse.
|
||||
type Options struct {
|
||||
// Extensions is a flag set of bit-wise ORed extension bits. See the
|
||||
// EXTENSION_* flags defined in this package.
|
||||
Extensions int
|
||||
|
||||
// ReferenceOverride is an optional function callback that is called every
|
||||
// time a reference is resolved.
|
||||
//
|
||||
// In Markdown, the link reference syntax can be made to resolve a link to
|
||||
// a reference instead of an inline URL, in one of the following ways:
|
||||
//
|
||||
// * [link text][refid]
|
||||
// * [refid][]
|
||||
//
|
||||
// Usually, the refid is defined at the bottom of the Markdown document. If
|
||||
// this override function is provided, the refid is passed to the override
|
||||
// function first, before consulting the defined refids at the bottom. If
|
||||
// the override function indicates an override did not occur, the refids at
|
||||
// the bottom will be used to fill in the link details.
|
||||
ReferenceOverride ReferenceOverrideFunc
|
||||
}
|
||||
|
||||
// MarkdownBasic is a convenience function for simple rendering.
|
||||
// It processes markdown input with no extensions enabled.
|
||||
func MarkdownBasic(input []byte) []byte {
|
||||
// set up the HTML renderer
|
||||
htmlFlags := HTML_USE_XHTML
|
||||
renderer := HtmlRenderer(htmlFlags, "", "")
|
||||
|
||||
// set up the parser
|
||||
return MarkdownOptions(input, renderer, Options{Extensions: 0})
|
||||
}
|
||||
|
||||
// Call Markdown with most useful extensions enabled
|
||||
// MarkdownCommon is a convenience function for simple rendering.
|
||||
// It processes markdown input with common extensions enabled, including:
|
||||
//
|
||||
// * Smartypants processing with smart fractions and LaTeX dashes
|
||||
//
|
||||
// * Intra-word emphasis suppression
|
||||
//
|
||||
// * Tables
|
||||
//
|
||||
// * Fenced code blocks
|
||||
//
|
||||
// * Autolinking
|
||||
//
|
||||
// * Strikethrough support
|
||||
//
|
||||
// * Strict header parsing
|
||||
//
|
||||
// * Custom Header IDs
|
||||
func MarkdownCommon(input []byte) []byte {
|
||||
// set up the HTML renderer
|
||||
renderer := HtmlRenderer(commonHtmlFlags, "", "")
|
||||
return MarkdownOptions(input, renderer, Options{
|
||||
Extensions: commonExtensions})
|
||||
}
|
||||
|
||||
// Markdown is the main rendering function.
|
||||
// It parses and renders a block of markdown-encoded text.
|
||||
// The supplied Renderer is used to format the output, and extensions dictates
|
||||
// which non-standard extensions are enabled.
|
||||
//
|
||||
// To use the supplied Html or LaTeX renderers, see HtmlRenderer and
|
||||
// LatexRenderer, respectively.
|
||||
func Markdown(input []byte, renderer Renderer, extensions int) []byte {
|
||||
return MarkdownOptions(input, renderer, Options{
|
||||
Extensions: extensions})
|
||||
}
|
||||
|
||||
// MarkdownOptions is just like Markdown but takes additional options through
|
||||
// the Options struct.
|
||||
func MarkdownOptions(input []byte, renderer Renderer, opts Options) []byte {
|
||||
// no point in parsing if we can't render
|
||||
if renderer == nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
extensions := opts.Extensions
|
||||
|
||||
// fill in the render structure
|
||||
p := new(parser)
|
||||
p.r = renderer
|
||||
p.flags = extensions
|
||||
p.refOverride = opts.ReferenceOverride
|
||||
p.refs = make(map[string]*reference)
|
||||
p.maxNesting = 16
|
||||
p.insideLink = false
|
||||
|
||||
// register inline parsers
|
||||
p.inlineCallback['*'] = emphasis
|
||||
p.inlineCallback['_'] = emphasis
|
||||
if extensions&EXTENSION_STRIKETHROUGH != 0 {
|
||||
p.inlineCallback['~'] = emphasis
|
||||
}
|
||||
p.inlineCallback['`'] = codeSpan
|
||||
p.inlineCallback['\n'] = lineBreak
|
||||
p.inlineCallback['['] = link
|
||||
p.inlineCallback['<'] = leftAngle
|
||||
p.inlineCallback['\\'] = escape
|
||||
p.inlineCallback['&'] = entity
|
||||
|
||||
if extensions&EXTENSION_AUTOLINK != 0 {
|
||||
p.inlineCallback[':'] = autoLink
|
||||
}
|
||||
|
||||
if extensions&EXTENSION_FOOTNOTES != 0 {
|
||||
p.notes = make([]*reference, 0)
|
||||
}
|
||||
|
||||
first := firstPass(p, input)
|
||||
second := secondPass(p, first)
|
||||
return second
|
||||
}
|
||||
|
||||
// first pass:
|
||||
// - normalize newlines
|
||||
// - extract references (outside of fenced code blocks)
|
||||
// - expand tabs (outside of fenced code blocks)
|
||||
// - copy everything else
|
||||
func firstPass(p *parser, input []byte) []byte {
|
||||
var out bytes.Buffer
|
||||
tabSize := TAB_SIZE_DEFAULT
|
||||
if p.flags&EXTENSION_TAB_SIZE_EIGHT != 0 {
|
||||
tabSize = TAB_SIZE_EIGHT
|
||||
}
|
||||
beg := 0
|
||||
lastFencedCodeBlockEnd := 0
|
||||
for beg < len(input) {
|
||||
// Find end of this line, then process the line.
|
||||
end := beg
|
||||
for end < len(input) && input[end] != '\n' && input[end] != '\r' {
|
||||
end++
|
||||
}
|
||||
|
||||
if p.flags&EXTENSION_FENCED_CODE != 0 {
|
||||
// track fenced code block boundaries to suppress tab expansion
|
||||
// and reference extraction inside them:
|
||||
if beg >= lastFencedCodeBlockEnd {
|
||||
if i := p.fencedCodeBlock(&out, input[beg:], false); i > 0 {
|
||||
lastFencedCodeBlockEnd = beg + i
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// add the line body if present
|
||||
if end > beg {
|
||||
if end < lastFencedCodeBlockEnd { // Do not expand tabs while inside fenced code blocks.
|
||||
out.Write(input[beg:end])
|
||||
} else if refEnd := isReference(p, input[beg:], tabSize); refEnd > 0 {
|
||||
beg += refEnd
|
||||
continue
|
||||
} else {
|
||||
expandTabs(&out, input[beg:end], tabSize)
|
||||
}
|
||||
}
|
||||
|
||||
if end < len(input) && input[end] == '\r' {
|
||||
end++
|
||||
}
|
||||
if end < len(input) && input[end] == '\n' {
|
||||
end++
|
||||
}
|
||||
out.WriteByte('\n')
|
||||
|
||||
beg = end
|
||||
}
|
||||
|
||||
// empty input?
|
||||
if out.Len() == 0 {
|
||||
out.WriteByte('\n')
|
||||
}
|
||||
|
||||
return out.Bytes()
|
||||
}
|
||||
|
||||
// second pass: actual rendering
|
||||
func secondPass(p *parser, input []byte) []byte {
|
||||
var output bytes.Buffer
|
||||
|
||||
p.r.DocumentHeader(&output)
|
||||
p.block(&output, input)
|
||||
|
||||
if p.flags&EXTENSION_FOOTNOTES != 0 && len(p.notes) > 0 {
|
||||
p.r.Footnotes(&output, func() bool {
|
||||
flags := LIST_ITEM_BEGINNING_OF_LIST
|
||||
for i := 0; i < len(p.notes); i += 1 {
|
||||
ref := p.notes[i]
|
||||
var buf bytes.Buffer
|
||||
if ref.hasBlock {
|
||||
flags |= LIST_ITEM_CONTAINS_BLOCK
|
||||
p.block(&buf, ref.title)
|
||||
} else {
|
||||
p.inline(&buf, ref.title)
|
||||
}
|
||||
p.r.FootnoteItem(&output, ref.link, buf.Bytes(), flags)
|
||||
flags &^= LIST_ITEM_BEGINNING_OF_LIST | LIST_ITEM_CONTAINS_BLOCK
|
||||
}
|
||||
|
||||
return true
|
||||
})
|
||||
}
|
||||
|
||||
p.r.DocumentFooter(&output)
|
||||
|
||||
if p.nesting != 0 {
|
||||
panic("Nesting level did not end at zero")
|
||||
}
|
||||
|
||||
return output.Bytes()
|
||||
}
|
||||
|
||||
//
|
||||
// Link references
|
||||
//
|
||||
// This section implements support for references that (usually) appear
|
||||
// as footnotes in a document, and can be referenced anywhere in the document.
|
||||
// The basic format is:
|
||||
//
|
||||
// [1]: http://www.google.com/ "Google"
|
||||
// [2]: http://www.github.com/ "Github"
|
||||
//
|
||||
// Anywhere in the document, the reference can be linked by referring to its
|
||||
// label, i.e., 1 and 2 in this example, as in:
|
||||
//
|
||||
// This library is hosted on [Github][2], a git hosting site.
|
||||
//
|
||||
// Actual footnotes as specified in Pandoc and supported by some other Markdown
|
||||
// libraries such as php-markdown are also taken care of. They look like this:
|
||||
//
|
||||
// This sentence needs a bit of further explanation.[^note]
|
||||
//
|
||||
// [^note]: This is the explanation.
|
||||
//
|
||||
// Footnotes should be placed at the end of the document in an ordered list.
|
||||
// Inline footnotes such as:
|
||||
//
|
||||
// Inline footnotes^[Not supported.] also exist.
|
||||
//
|
||||
// are not yet supported.
|
||||
|
||||
// References are parsed and stored in this struct.
|
||||
type reference struct {
|
||||
link []byte
|
||||
title []byte
|
||||
noteId int // 0 if not a footnote ref
|
||||
hasBlock bool
|
||||
text []byte
|
||||
}
|
||||
|
||||
func (r *reference) String() string {
|
||||
return fmt.Sprintf("{link: %q, title: %q, text: %q, noteId: %d, hasBlock: %v}",
|
||||
r.link, r.title, r.text, r.noteId, r.hasBlock)
|
||||
}
|
||||
|
||||
// Check whether or not data starts with a reference link.
|
||||
// If so, it is parsed and stored in the list of references
|
||||
// (in the render struct).
|
||||
// Returns the number of bytes to skip to move past it,
|
||||
// or zero if the first line is not a reference.
|
||||
func isReference(p *parser, data []byte, tabSize int) int {
|
||||
// up to 3 optional leading spaces
|
||||
if len(data) < 4 {
|
||||
return 0
|
||||
}
|
||||
i := 0
|
||||
for i < 3 && data[i] == ' ' {
|
||||
i++
|
||||
}
|
||||
|
||||
noteId := 0
|
||||
|
||||
// id part: anything but a newline between brackets
|
||||
if data[i] != '[' {
|
||||
return 0
|
||||
}
|
||||
i++
|
||||
if p.flags&EXTENSION_FOOTNOTES != 0 {
|
||||
if i < len(data) && data[i] == '^' {
|
||||
// we can set it to anything here because the proper noteIds will
|
||||
// be assigned later during the second pass. It just has to be != 0
|
||||
noteId = 1
|
||||
i++
|
||||
}
|
||||
}
|
||||
idOffset := i
|
||||
for i < len(data) && data[i] != '\n' && data[i] != '\r' && data[i] != ']' {
|
||||
i++
|
||||
}
|
||||
if i >= len(data) || data[i] != ']' {
|
||||
return 0
|
||||
}
|
||||
idEnd := i
|
||||
|
||||
// spacer: colon (space | tab)* newline? (space | tab)*
|
||||
i++
|
||||
if i >= len(data) || data[i] != ':' {
|
||||
return 0
|
||||
}
|
||||
i++
|
||||
for i < len(data) && (data[i] == ' ' || data[i] == '\t') {
|
||||
i++
|
||||
}
|
||||
if i < len(data) && (data[i] == '\n' || data[i] == '\r') {
|
||||
i++
|
||||
if i < len(data) && data[i] == '\n' && data[i-1] == '\r' {
|
||||
i++
|
||||
}
|
||||
}
|
||||
for i < len(data) && (data[i] == ' ' || data[i] == '\t') {
|
||||
i++
|
||||
}
|
||||
if i >= len(data) {
|
||||
return 0
|
||||
}
|
||||
|
||||
var (
|
||||
linkOffset, linkEnd int
|
||||
titleOffset, titleEnd int
|
||||
lineEnd int
|
||||
raw []byte
|
||||
hasBlock bool
|
||||
)
|
||||
|
||||
if p.flags&EXTENSION_FOOTNOTES != 0 && noteId != 0 {
|
||||
linkOffset, linkEnd, raw, hasBlock = scanFootnote(p, data, i, tabSize)
|
||||
lineEnd = linkEnd
|
||||
} else {
|
||||
linkOffset, linkEnd, titleOffset, titleEnd, lineEnd = scanLinkRef(p, data, i)
|
||||
}
|
||||
if lineEnd == 0 {
|
||||
return 0
|
||||
}
|
||||
|
||||
// a valid ref has been found
|
||||
|
||||
ref := &reference{
|
||||
noteId: noteId,
|
||||
hasBlock: hasBlock,
|
||||
}
|
||||
|
||||
if noteId > 0 {
|
||||
// reusing the link field for the id since footnotes don't have links
|
||||
ref.link = data[idOffset:idEnd]
|
||||
// if footnote, it's not really a title, it's the contained text
|
||||
ref.title = raw
|
||||
} else {
|
||||
ref.link = data[linkOffset:linkEnd]
|
||||
ref.title = data[titleOffset:titleEnd]
|
||||
}
|
||||
|
||||
// id matches are case-insensitive
|
||||
id := string(bytes.ToLower(data[idOffset:idEnd]))
|
||||
|
||||
p.refs[id] = ref
|
||||
|
||||
return lineEnd
|
||||
}
|
||||
|
||||
func scanLinkRef(p *parser, data []byte, i int) (linkOffset, linkEnd, titleOffset, titleEnd, lineEnd int) {
|
||||
// link: whitespace-free sequence, optionally between angle brackets
|
||||
if data[i] == '<' {
|
||||
i++
|
||||
}
|
||||
linkOffset = i
|
||||
if i == len(data) {
|
||||
return
|
||||
}
|
||||
for i < len(data) && data[i] != ' ' && data[i] != '\t' && data[i] != '\n' && data[i] != '\r' {
|
||||
i++
|
||||
}
|
||||
linkEnd = i
|
||||
if data[linkOffset] == '<' && data[linkEnd-1] == '>' {
|
||||
linkOffset++
|
||||
linkEnd--
|
||||
}
|
||||
|
||||
// optional spacer: (space | tab)* (newline | '\'' | '"' | '(' )
|
||||
for i < len(data) && (data[i] == ' ' || data[i] == '\t') {
|
||||
i++
|
||||
}
|
||||
if i < len(data) && data[i] != '\n' && data[i] != '\r' && data[i] != '\'' && data[i] != '"' && data[i] != '(' {
|
||||
return
|
||||
}
|
||||
|
||||
// compute end-of-line
|
||||
if i >= len(data) || data[i] == '\r' || data[i] == '\n' {
|
||||
lineEnd = i
|
||||
}
|
||||
if i+1 < len(data) && data[i] == '\r' && data[i+1] == '\n' {
|
||||
lineEnd++
|
||||
}
|
||||
|
||||
// optional (space|tab)* spacer after a newline
|
||||
if lineEnd > 0 {
|
||||
i = lineEnd + 1
|
||||
for i < len(data) && (data[i] == ' ' || data[i] == '\t') {
|
||||
i++
|
||||
}
|
||||
}
|
||||
|
||||
// optional title: any non-newline sequence enclosed in '"() alone on its line
|
||||
if i+1 < len(data) && (data[i] == '\'' || data[i] == '"' || data[i] == '(') {
|
||||
i++
|
||||
titleOffset = i
|
||||
|
||||
// look for EOL
|
||||
for i < len(data) && data[i] != '\n' && data[i] != '\r' {
|
||||
i++
|
||||
}
|
||||
if i+1 < len(data) && data[i] == '\n' && data[i+1] == '\r' {
|
||||
titleEnd = i + 1
|
||||
} else {
|
||||
titleEnd = i
|
||||
}
|
||||
|
||||
// step back
|
||||
i--
|
||||
for i > titleOffset && (data[i] == ' ' || data[i] == '\t') {
|
||||
i--
|
||||
}
|
||||
if i > titleOffset && (data[i] == '\'' || data[i] == '"' || data[i] == ')') {
|
||||
lineEnd = titleEnd
|
||||
titleEnd = i
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
// The first bit of this logic is the same as (*parser).listItem, but the rest
|
||||
// is much simpler. This function simply finds the entire block and shifts it
|
||||
// over by one tab if it is indeed a block (just returns the line if it's not).
|
||||
// blockEnd is the end of the section in the input buffer, and contents is the
|
||||
// extracted text that was shifted over one tab. It will need to be rendered at
|
||||
// the end of the document.
|
||||
func scanFootnote(p *parser, data []byte, i, indentSize int) (blockStart, blockEnd int, contents []byte, hasBlock bool) {
|
||||
if i == 0 || len(data) == 0 {
|
||||
return
|
||||
}
|
||||
|
||||
// skip leading whitespace on first line
|
||||
for i < len(data) && data[i] == ' ' {
|
||||
i++
|
||||
}
|
||||
|
||||
blockStart = i
|
||||
|
||||
// find the end of the line
|
||||
blockEnd = i
|
||||
for i < len(data) && data[i-1] != '\n' {
|
||||
i++
|
||||
}
|
||||
|
||||
// get working buffer
|
||||
var raw bytes.Buffer
|
||||
|
||||
// put the first line into the working buffer
|
||||
raw.Write(data[blockEnd:i])
|
||||
blockEnd = i
|
||||
|
||||
// process the following lines
|
||||
containsBlankLine := false
|
||||
|
||||
gatherLines:
|
||||
for blockEnd < len(data) {
|
||||
i++
|
||||
|
||||
// find the end of this line
|
||||
for i < len(data) && data[i-1] != '\n' {
|
||||
i++
|
||||
}
|
||||
|
||||
// if it is an empty line, guess that it is part of this item
|
||||
// and move on to the next line
|
||||
if p.isEmpty(data[blockEnd:i]) > 0 {
|
||||
containsBlankLine = true
|
||||
blockEnd = i
|
||||
continue
|
||||
}
|
||||
|
||||
n := 0
|
||||
if n = isIndented(data[blockEnd:i], indentSize); n == 0 {
|
||||
// this is the end of the block.
|
||||
// we don't want to include this last line in the index.
|
||||
break gatherLines
|
||||
}
|
||||
|
||||
// if there were blank lines before this one, insert a new one now
|
||||
if containsBlankLine {
|
||||
raw.WriteByte('\n')
|
||||
containsBlankLine = false
|
||||
}
|
||||
|
||||
// get rid of that first tab, write to buffer
|
||||
raw.Write(data[blockEnd+n : i])
|
||||
hasBlock = true
|
||||
|
||||
blockEnd = i
|
||||
}
|
||||
|
||||
if data[blockEnd-1] != '\n' {
|
||||
raw.WriteByte('\n')
|
||||
}
|
||||
|
||||
contents = raw.Bytes()
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
//
|
||||
//
|
||||
// Miscellaneous helper functions
|
||||
//
|
||||
//
|
||||
|
||||
// Test if a character is a punctuation symbol.
|
||||
// Taken from a private function in regexp in the stdlib.
|
||||
func ispunct(c byte) bool {
|
||||
for _, r := range []byte("!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~") {
|
||||
if c == r {
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// Test if a character is a whitespace character.
|
||||
func isspace(c byte) bool {
|
||||
return c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\f' || c == '\v'
|
||||
}
|
||||
|
||||
// Test if a character is letter.
|
||||
func isletter(c byte) bool {
|
||||
return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
|
||||
}
|
||||
|
||||
// Test if a character is a letter or a digit.
|
||||
// TODO: check when this is looking for ASCII alnum and when it should use unicode
|
||||
func isalnum(c byte) bool {
|
||||
return (c >= '0' && c <= '9') || isletter(c)
|
||||
}
|
||||
|
||||
// Replace tab characters with spaces, aligning to the next TAB_SIZE column.
|
||||
// always ends output with a newline
|
||||
func expandTabs(out *bytes.Buffer, line []byte, tabSize int) {
|
||||
// first, check for common cases: no tabs, or only tabs at beginning of line
|
||||
i, prefix := 0, 0
|
||||
slowcase := false
|
||||
for i = 0; i < len(line); i++ {
|
||||
if line[i] == '\t' {
|
||||
if prefix == i {
|
||||
prefix++
|
||||
} else {
|
||||
slowcase = true
|
||||
break
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// no need to decode runes if all tabs are at the beginning of the line
|
||||
if !slowcase {
|
||||
for i = 0; i < prefix*tabSize; i++ {
|
||||
out.WriteByte(' ')
|
||||
}
|
||||
out.Write(line[prefix:])
|
||||
return
|
||||
}
|
||||
|
||||
// the slow case: we need to count runes to figure out how
|
||||
// many spaces to insert for each tab
|
||||
column := 0
|
||||
i = 0
|
||||
for i < len(line) {
|
||||
start := i
|
||||
for i < len(line) && line[i] != '\t' {
|
||||
_, size := utf8.DecodeRune(line[i:])
|
||||
i += size
|
||||
column++
|
||||
}
|
||||
|
||||
if i > start {
|
||||
out.Write(line[start:i])
|
||||
}
|
||||
|
||||
if i >= len(line) {
|
||||
break
|
||||
}
|
||||
|
||||
for {
|
||||
out.WriteByte(' ')
|
||||
column++
|
||||
if column%tabSize == 0 {
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
i++
|
||||
}
|
||||
}
|
||||
|
||||
// Find if a line counts as indented or not.
|
||||
// Returns number of characters the indent is (0 = not indented).
|
||||
func isIndented(data []byte, indentSize int) int {
|
||||
if len(data) == 0 {
|
||||
return 0
|
||||
}
|
||||
if data[0] == '\t' {
|
||||
return 1
|
||||
}
|
||||
if len(data) < indentSize {
|
||||
return 0
|
||||
}
|
||||
for i := 0; i < indentSize; i++ {
|
||||
if data[i] != ' ' {
|
||||
return 0
|
||||
}
|
||||
}
|
||||
return indentSize
|
||||
}
|
||||
|
||||
// Create a url-safe slug for fragments
|
||||
func slugify(in []byte) []byte {
|
||||
if len(in) == 0 {
|
||||
return in
|
||||
}
|
||||
out := make([]byte, 0, len(in))
|
||||
sym := false
|
||||
|
||||
for _, ch := range in {
|
||||
if isalnum(ch) {
|
||||
sym = false
|
||||
out = append(out, ch)
|
||||
} else if sym {
|
||||
continue
|
||||
} else {
|
||||
out = append(out, '-')
|
||||
sym = true
|
||||
}
|
||||
}
|
||||
var a, b int
|
||||
var ch byte
|
||||
for a, ch = range out {
|
||||
if ch != '-' {
|
||||
break
|
||||
}
|
||||
}
|
||||
for b = len(out) - 1; b > 0; b-- {
|
||||
if out[b] != '-' {
|
||||
break
|
||||
}
|
||||
}
|
||||
return out[a : b+1]
|
||||
}
|
400
vendor/github.com/russross/blackfriday/smartypants.go
generated
vendored
Normal file
400
vendor/github.com/russross/blackfriday/smartypants.go
generated
vendored
Normal file
@ -0,0 +1,400 @@
|
||||
//
|
||||
// Blackfriday Markdown Processor
|
||||
// Available at http://github.com/russross/blackfriday
|
||||
//
|
||||
// Copyright © 2011 Russ Ross <russ@russross.com>.
|
||||
// Distributed under the Simplified BSD License.
|
||||
// See README.md for details.
|
||||
//
|
||||
|
||||
//
|
||||
//
|
||||
// SmartyPants rendering
|
||||
//
|
||||
//
|
||||
|
||||
package blackfriday
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
)
|
||||
|
||||
type smartypantsData struct {
|
||||
inSingleQuote bool
|
||||
inDoubleQuote bool
|
||||
}
|
||||
|
||||
func wordBoundary(c byte) bool {
|
||||
return c == 0 || isspace(c) || ispunct(c)
|
||||
}
|
||||
|
||||
func tolower(c byte) byte {
|
||||
if c >= 'A' && c <= 'Z' {
|
||||
return c - 'A' + 'a'
|
||||
}
|
||||
return c
|
||||
}
|
||||
|
||||
func isdigit(c byte) bool {
|
||||
return c >= '0' && c <= '9'
|
||||
}
|
||||
|
||||
func smartQuoteHelper(out *bytes.Buffer, previousChar byte, nextChar byte, quote byte, isOpen *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
|
||||
|
||||
// enumerate all sixteen possibilities for (previousChar, nextChar)
|
||||
// each can be one of {0, space, punct, other}
|
||||
switch {
|
||||
case previousChar == 0 && nextChar == 0:
|
||||
// context is not any help here, so toggle
|
||||
*isOpen = !*isOpen
|
||||
case isspace(previousChar) && nextChar == 0:
|
||||
// [ "] might be [ "<code>foo...]
|
||||
*isOpen = true
|
||||
case ispunct(previousChar) && nextChar == 0:
|
||||
// [!"] hmm... could be [Run!"] or [("<code>...]
|
||||
*isOpen = false
|
||||
case /* isnormal(previousChar) && */ nextChar == 0:
|
||||
// [a"] is probably a close
|
||||
*isOpen = false
|
||||
case previousChar == 0 && isspace(nextChar):
|
||||
// [" ] might be [...foo</code>" ]
|
||||
*isOpen = false
|
||||
case isspace(previousChar) && isspace(nextChar):
|
||||
// [ " ] context is not any help here, so toggle
|
||||
*isOpen = !*isOpen
|
||||
case ispunct(previousChar) && isspace(nextChar):
|
||||
// [!" ] is probably a close
|
||||
*isOpen = false
|
||||
case /* isnormal(previousChar) && */ isspace(nextChar):
|
||||
// [a" ] this is one of the easy cases
|
||||
*isOpen = false
|
||||
case previousChar == 0 && ispunct(nextChar):
|
||||
// ["!] hmm... could be ["$1.95] or [</code>"!...]
|
||||
*isOpen = false
|
||||
case isspace(previousChar) && ispunct(nextChar):
|
||||
// [ "!] looks more like [ "$1.95]
|
||||
*isOpen = true
|
||||
case ispunct(previousChar) && ispunct(nextChar):
|
||||
// [!"!] context is not any help here, so toggle
|
||||
*isOpen = !*isOpen
|
||||
case /* isnormal(previousChar) && */ ispunct(nextChar):
|
||||
// [a"!] is probably a close
|
||||
*isOpen = false
|
||||
case previousChar == 0 /* && isnormal(nextChar) */ :
|
||||
// ["a] is probably an open
|
||||
*isOpen = true
|
||||
case isspace(previousChar) /* && isnormal(nextChar) */ :
|
||||
// [ "a] this is one of the easy cases
|
||||
*isOpen = true
|
||||
case ispunct(previousChar) /* && isnormal(nextChar) */ :
|
||||
// [!"a] is probably an open
|
||||
*isOpen = true
|
||||
default:
|
||||
// [a'b] maybe a contraction?
|
||||
*isOpen = false
|
||||
}
|
||||
|
||||
out.WriteByte('&')
|
||||
if *isOpen {
|
||||
out.WriteByte('l')
|
||||
} else {
|
||||
out.WriteByte('r')
|
||||
}
|
||||
out.WriteByte(quote)
|
||||
out.WriteString("quo;")
|
||||
return true
|
||||
}
|
||||
|
||||
func smartSingleQuote(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
if len(text) >= 2 {
|
||||
t1 := tolower(text[1])
|
||||
|
||||
if t1 == '\'' {
|
||||
nextChar := byte(0)
|
||||
if len(text) >= 3 {
|
||||
nextChar = text[2]
|
||||
}
|
||||
if smartQuoteHelper(out, previousChar, nextChar, 'd', &smrt.inDoubleQuote) {
|
||||
return 1
|
||||
}
|
||||
}
|
||||
|
||||
if (t1 == 's' || t1 == 't' || t1 == 'm' || t1 == 'd') && (len(text) < 3 || wordBoundary(text[2])) {
|
||||
out.WriteString("’")
|
||||
return 0
|
||||
}
|
||||
|
||||
if len(text) >= 3 {
|
||||
t2 := tolower(text[2])
|
||||
|
||||
if ((t1 == 'r' && t2 == 'e') || (t1 == 'l' && t2 == 'l') || (t1 == 'v' && t2 == 'e')) &&
|
||||
(len(text) < 4 || wordBoundary(text[3])) {
|
||||
out.WriteString("’")
|
||||
return 0
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
nextChar := byte(0)
|
||||
if len(text) > 1 {
|
||||
nextChar = text[1]
|
||||
}
|
||||
if smartQuoteHelper(out, previousChar, nextChar, 's', &smrt.inSingleQuote) {
|
||||
return 0
|
||||
}
|
||||
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
|
||||
func smartParens(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
if len(text) >= 3 {
|
||||
t1 := tolower(text[1])
|
||||
t2 := tolower(text[2])
|
||||
|
||||
if t1 == 'c' && t2 == ')' {
|
||||
out.WriteString("©")
|
||||
return 2
|
||||
}
|
||||
|
||||
if t1 == 'r' && t2 == ')' {
|
||||
out.WriteString("®")
|
||||
return 2
|
||||
}
|
||||
|
||||
if len(text) >= 4 && t1 == 't' && t2 == 'm' && text[3] == ')' {
|
||||
out.WriteString("™")
|
||||
return 3
|
||||
}
|
||||
}
|
||||
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
|
||||
func smartDash(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
if len(text) >= 2 {
|
||||
if text[1] == '-' {
|
||||
out.WriteString("—")
|
||||
return 1
|
||||
}
|
||||
|
||||
if wordBoundary(previousChar) && wordBoundary(text[1]) {
|
||||
out.WriteString("–")
|
||||
return 0
|
||||
}
|
||||
}
|
||||
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
|
||||
func smartDashLatex(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
if len(text) >= 3 && text[1] == '-' && text[2] == '-' {
|
||||
out.WriteString("—")
|
||||
return 2
|
||||
}
|
||||
if len(text) >= 2 && text[1] == '-' {
|
||||
out.WriteString("–")
|
||||
return 1
|
||||
}
|
||||
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
|
||||
func smartAmpVariant(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte, quote byte) int {
|
||||
if bytes.HasPrefix(text, []byte(""")) {
|
||||
nextChar := byte(0)
|
||||
if len(text) >= 7 {
|
||||
nextChar = text[6]
|
||||
}
|
||||
if smartQuoteHelper(out, previousChar, nextChar, quote, &smrt.inDoubleQuote) {
|
||||
return 5
|
||||
}
|
||||
}
|
||||
|
||||
if bytes.HasPrefix(text, []byte("�")) {
|
||||
return 3
|
||||
}
|
||||
|
||||
out.WriteByte('&')
|
||||
return 0
|
||||
}
|
||||
|
||||
func smartAmp(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
return smartAmpVariant(out, smrt, previousChar, text, 'd')
|
||||
}
|
||||
|
||||
func smartAmpAngledQuote(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
return smartAmpVariant(out, smrt, previousChar, text, 'a')
|
||||
}
|
||||
|
||||
func smartPeriod(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
if len(text) >= 3 && text[1] == '.' && text[2] == '.' {
|
||||
out.WriteString("…")
|
||||
return 2
|
||||
}
|
||||
|
||||
if len(text) >= 5 && text[1] == ' ' && text[2] == '.' && text[3] == ' ' && text[4] == '.' {
|
||||
out.WriteString("…")
|
||||
return 4
|
||||
}
|
||||
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
|
||||
func smartBacktick(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
if len(text) >= 2 && text[1] == '`' {
|
||||
nextChar := byte(0)
|
||||
if len(text) >= 3 {
|
||||
nextChar = text[2]
|
||||
}
|
||||
if smartQuoteHelper(out, previousChar, nextChar, 'd', &smrt.inDoubleQuote) {
|
||||
return 1
|
||||
}
|
||||
}
|
||||
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
|
||||
func smartNumberGeneric(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
if wordBoundary(previousChar) && previousChar != '/' && len(text) >= 3 {
|
||||
// is it of the form digits/digits(word boundary)?, i.e., \d+/\d+\b
|
||||
// note: check for regular slash (/) or fraction slash (⁄, 0x2044, or 0xe2 81 84 in utf-8)
|
||||
// and avoid changing dates like 1/23/2005 into fractions.
|
||||
numEnd := 0
|
||||
for len(text) > numEnd && isdigit(text[numEnd]) {
|
||||
numEnd++
|
||||
}
|
||||
if numEnd == 0 {
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
denStart := numEnd + 1
|
||||
if len(text) > numEnd+3 && text[numEnd] == 0xe2 && text[numEnd+1] == 0x81 && text[numEnd+2] == 0x84 {
|
||||
denStart = numEnd + 3
|
||||
} else if len(text) < numEnd+2 || text[numEnd] != '/' {
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
denEnd := denStart
|
||||
for len(text) > denEnd && isdigit(text[denEnd]) {
|
||||
denEnd++
|
||||
}
|
||||
if denEnd == denStart {
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
if len(text) == denEnd || wordBoundary(text[denEnd]) && text[denEnd] != '/' {
|
||||
out.WriteString("<sup>")
|
||||
out.Write(text[:numEnd])
|
||||
out.WriteString("</sup>⁄<sub>")
|
||||
out.Write(text[denStart:denEnd])
|
||||
out.WriteString("</sub>")
|
||||
return denEnd - 1
|
||||
}
|
||||
}
|
||||
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
|
||||
func smartNumber(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
if wordBoundary(previousChar) && previousChar != '/' && len(text) >= 3 {
|
||||
if text[0] == '1' && text[1] == '/' && text[2] == '2' {
|
||||
if len(text) < 4 || wordBoundary(text[3]) && text[3] != '/' {
|
||||
out.WriteString("½")
|
||||
return 2
|
||||
}
|
||||
}
|
||||
|
||||
if text[0] == '1' && text[1] == '/' && text[2] == '4' {
|
||||
if len(text) < 4 || wordBoundary(text[3]) && text[3] != '/' || (len(text) >= 5 && tolower(text[3]) == 't' && tolower(text[4]) == 'h') {
|
||||
out.WriteString("¼")
|
||||
return 2
|
||||
}
|
||||
}
|
||||
|
||||
if text[0] == '3' && text[1] == '/' && text[2] == '4' {
|
||||
if len(text) < 4 || wordBoundary(text[3]) && text[3] != '/' || (len(text) >= 6 && tolower(text[3]) == 't' && tolower(text[4]) == 'h' && tolower(text[5]) == 's') {
|
||||
out.WriteString("¾")
|
||||
return 2
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
out.WriteByte(text[0])
|
||||
return 0
|
||||
}
|
||||
|
||||
func smartDoubleQuoteVariant(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte, quote byte) int {
|
||||
nextChar := byte(0)
|
||||
if len(text) > 1 {
|
||||
nextChar = text[1]
|
||||
}
|
||||
if !smartQuoteHelper(out, previousChar, nextChar, quote, &smrt.inDoubleQuote) {
|
||||
out.WriteString(""")
|
||||
}
|
||||
|
||||
return 0
|
||||
}
|
||||
|
||||
func smartDoubleQuote(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
return smartDoubleQuoteVariant(out, smrt, previousChar, text, 'd')
|
||||
}
|
||||
|
||||
func smartAngledDoubleQuote(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
return smartDoubleQuoteVariant(out, smrt, previousChar, text, 'a')
|
||||
}
|
||||
|
||||
func smartLeftAngle(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
|
||||
i := 0
|
||||
|
||||
for i < len(text) && text[i] != '>' {
|
||||
i++
|
||||
}
|
||||
|
||||
out.Write(text[:i+1])
|
||||
return i
|
||||
}
|
||||
|
||||
type smartCallback func(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int
|
||||
|
||||
type smartypantsRenderer [256]smartCallback
|
||||
|
||||
func smartypants(flags int) *smartypantsRenderer {
|
||||
r := new(smartypantsRenderer)
|
||||
if flags&HTML_SMARTYPANTS_ANGLED_QUOTES == 0 {
|
||||
r['"'] = smartDoubleQuote
|
||||
r['&'] = smartAmp
|
||||
} else {
|
||||
r['"'] = smartAngledDoubleQuote
|
||||
r['&'] = smartAmpAngledQuote
|
||||
}
|
||||
r['\''] = smartSingleQuote
|
||||
r['('] = smartParens
|
||||
if flags&HTML_SMARTYPANTS_DASHES != 0 {
|
||||
if flags&HTML_SMARTYPANTS_LATEX_DASHES == 0 {
|
||||
r['-'] = smartDash
|
||||
} else {
|
||||
r['-'] = smartDashLatex
|
||||
}
|
||||
}
|
||||
r['.'] = smartPeriod
|
||||
if flags&HTML_SMARTYPANTS_FRACTIONS == 0 {
|
||||
r['1'] = smartNumber
|
||||
r['3'] = smartNumber
|
||||
} else {
|
||||
for ch := '1'; ch <= '9'; ch++ {
|
||||
r[ch] = smartNumberGeneric
|
||||
}
|
||||
}
|
||||
r['<'] = smartLeftAngle
|
||||
r['`'] = smartBacktick
|
||||
return r
|
||||
}
|
19
vendor/github.com/shurcooL/sanitized_anchor_name/LICENSE
generated
vendored
Normal file
19
vendor/github.com/shurcooL/sanitized_anchor_name/LICENSE
generated
vendored
Normal file
@ -0,0 +1,19 @@
|
||||
Copyright (c) 2015 Dmitri Shuralyov
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
29
vendor/github.com/shurcooL/sanitized_anchor_name/main.go
generated
vendored
Normal file
29
vendor/github.com/shurcooL/sanitized_anchor_name/main.go
generated
vendored
Normal file
@ -0,0 +1,29 @@
|
||||
// Package sanitized_anchor_name provides a func to create sanitized anchor names.
|
||||
//
|
||||
// Its logic can be reused by multiple packages to create interoperable anchor names
|
||||
// and links to those anchors.
|
||||
//
|
||||
// At this time, it does not try to ensure that generated anchor names
|
||||
// are unique, that responsibility falls on the caller.
|
||||
package sanitized_anchor_name // import "github.com/shurcooL/sanitized_anchor_name"
|
||||
|
||||
import "unicode"
|
||||
|
||||
// Create returns a sanitized anchor name for the given text.
|
||||
func Create(text string) string {
|
||||
var anchorName []rune
|
||||
var futureDash = false
|
||||
for _, r := range []rune(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)
|
||||
}
|
Loading…
Reference in New Issue
Block a user