Merge pull request #9652 from gyuho/systemd

vendor: upgrade go-systemd to v16, clean unused vendor

CHANGELOG-3.4.md

@@ -98,6 +98,7 @@ See [code changes](https://github.com/coreos/etcd/compare/v3.3.0...v3.4.0) and [
 - Upgrade [`github.com/google/btree`](https://github.com/google/btree/releases) from [**`google/btree@925471ac9`**](https://github.com/google/btree/commit/925471ac9e2131377a91e1595defec898166fe49) to [**`google/btree@e89373fe6`**](https://github.com/google/btree/commit/e89373fe6b4a7413d7acd6da1725b83ef713e6e4).
 - Upgrade [`github.com/spf13/cobra`](https://github.com/spf13/cobra/releases) from [**`spf13/cobra@1c44ec8d3`**](https://github.com/spf13/cobra/commit/1c44ec8d3f1552cac48999f9306da23c4d8a288b) to [**`spf13/cobra@cd30c2a7e`**](https://github.com/spf13/cobra/commit/cd30c2a7e91a1d63fd9a0027accf18a681e9d50b).
 - Upgrade [`github.com/spf13/pflag`](https://github.com/spf13/pflag/releases) from [**`v1.0.0`**](https://github.com/spf13/pflag/releases/tag/v1.0.0) to [**`spf13/pflag@1ce0cc6db`**](https://github.com/spf13/pflag/commit/1ce0cc6db4029d97571db82f85092fccedb572ce).
+- Upgrade [`github.com/coreos/go-systemd`](https://github.com/coreos/go-systemd/releases) from [**`v15`**](https://github.com/coreos/go-systemd/releases/tag/v15) to [**`v16`**](https://github.com/coreos/go-systemd/releases/tag/v16).
 
 ### Metrics, Monitoring
 

Gopkg.lock

@@ -31,8 +31,8 @@
     "journal",
     "util"
   ]
-  revision = "d2196463941895ee908e13531a23a39feb9e1243"
-  version = "v15"
+  revision = "40e2722dffead74698ca12a750f64ef313ddce05"
+  version = "v16"
 
 [[projects]]
   name = "github.com/coreos/pkg"
@@ -43,11 +43,6 @@
   revision = "3ac0863d7acf3bc44daf49afef8919af12f704ef"
   version = "v3"
 
-[[projects]]
-  name = "github.com/cpuguy83/go-md2man"
-  packages = ["md2man"]
-  revision = "23709d0847197db6021a51fdb193e66e9222d4e7"
-
 [[projects]]
   name = "github.com/dgrijalva/jwt-go"
   packages = ["."]
@@ -189,11 +184,6 @@
   ]
   revision = "a6e9df898b1336106c743392c48ee0b71f5c4efa"
 
-[[projects]]
-  name = "github.com/russross/blackfriday"
-  packages = ["."]
-  revision = "4048872b16cc0fc2c5fd9eacf0ed2c2fedaa0c8c"
-
 [[projects]]
   name = "github.com/sirupsen/logrus"
   packages = ["."]
@@ -359,6 +349,6 @@
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "8d19d25de42fad79e4e417d847283a0057b08e2cacbf556d1da5dbcf8b81d0a9"
+  inputs-digest = "943bf7648c0129f59546321f569622e933f24a103b5d68525b82d5e47d52733f"
   solver-name = "gps-cdcl"
   solver-version = 1

vendor/github.com/coreos/go-systemd/NOTICE

@@ -0,0 +1,5 @@
+CoreOS Project
+Copyright 2018 CoreOS, Inc
+
+This product includes software developed at CoreOS, Inc.
+(http://www.coreos.com/).

vendor/github.com/cpuguy83/go-md2man/LICENSE.md

@@ -1,21 +0,0 @@
-The MIT License (MIT)
-
-Copyright (c) 2014 Brian Goff
-
-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.

vendor/github.com/cpuguy83/go-md2man/md2man.go

@@ -1,51 +0,0 @@
-package main
-
-import (
-	"flag"
-	"fmt"
-	"io/ioutil"
-	"os"
-
-	"github.com/cpuguy83/go-md2man/md2man"
-)
-
-var inFilePath = flag.String("in", "", "Path to file to be processed (default: stdin)")
-var outFilePath = flag.String("out", "", "Path to output processed file (default: stdout)")
-
-func main() {
-	var err error
-	flag.Parse()
-
-	inFile := os.Stdin
-	if *inFilePath != "" {
-		inFile, err = os.Open(*inFilePath)
-		if err != nil {
-			fmt.Println(err)
-			os.Exit(1)
-		}
-	}
-	defer inFile.Close()
-
-	doc, err := ioutil.ReadAll(inFile)
-	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-
-	out := md2man.Render(doc)
-
-	outFile := os.Stdout
-	if *outFilePath != "" {
-		outFile, err = os.Create(*outFilePath)
-		if err != nil {
-			fmt.Println(err)
-			os.Exit(1)
-		}
-		defer outFile.Close()
-	}
-	_, err = outFile.Write(out)
-	if err != nil {
-		fmt.Println(err)
-		os.Exit(1)
-	}
-}

vendor/github.com/cpuguy83/go-md2man/md2man/md2man.go

@@ -1,19 +0,0 @@
-package md2man
-
-import (
-	"github.com/russross/blackfriday"
-)
-
-func Render(doc []byte) []byte {
-	renderer := RoffRenderer(0)
-	extensions := 0
-	extensions |= blackfriday.EXTENSION_NO_INTRA_EMPHASIS
-	extensions |= blackfriday.EXTENSION_TABLES
-	extensions |= blackfriday.EXTENSION_FENCED_CODE
-	extensions |= blackfriday.EXTENSION_AUTOLINK
-	extensions |= blackfriday.EXTENSION_SPACE_HEADERS
-	extensions |= blackfriday.EXTENSION_FOOTNOTES
-	extensions |= blackfriday.EXTENSION_TITLEBLOCK
-
-	return blackfriday.Markdown(doc, renderer, extensions)
-}

vendor/github.com/cpuguy83/go-md2man/md2man/roff.go

@@ -1,301 +0,0 @@
-package md2man
-
-import (
-	"bytes"
-	"fmt"
-	"html"
-	"strings"
-
-	"github.com/russross/blackfriday"
-)
-
-type roffRenderer struct{}
-
-var listCounter int
-
-func RoffRenderer(flags int) blackfriday.Renderer {
-	return &roffRenderer{}
-}
-
-func (r *roffRenderer) GetFlags() int {
-	return 0
-}
-
-func (r *roffRenderer) TitleBlock(out *bytes.Buffer, text []byte) {
-	out.WriteString(".TH ")
-
-	splitText := bytes.Split(text, []byte("\n"))
-	for i, line := range splitText {
-		line = bytes.TrimPrefix(line, []byte("% "))
-		if i == 0 {
-			line = bytes.Replace(line, []byte("("), []byte("\" \""), 1)
-			line = bytes.Replace(line, []byte(")"), []byte("\" \""), 1)
-		}
-		line = append([]byte("\""), line...)
-		line = append(line, []byte("\" ")...)
-		out.Write(line)
-	}
-	out.WriteString("\n")
-
-	// disable hyphenation
-	out.WriteString(".nh\n")
-	// disable justification (adjust text to left margin only)
-	out.WriteString(".ad l\n")
-}
-
-func (r *roffRenderer) BlockCode(out *bytes.Buffer, text []byte, lang string) {
-	out.WriteString("\n.PP\n.RS\n\n.nf\n")
-	escapeSpecialChars(out, text)
-	out.WriteString("\n.fi\n.RE\n")
-}
-
-func (r *roffRenderer) BlockQuote(out *bytes.Buffer, text []byte) {
-	out.WriteString("\n.PP\n.RS\n")
-	out.Write(text)
-	out.WriteString("\n.RE\n")
-}
-
-func (r *roffRenderer) BlockHtml(out *bytes.Buffer, text []byte) {
-	out.Write(text)
-}
-
-func (r *roffRenderer) Header(out *bytes.Buffer, text func() bool, level int, id string) {
-	marker := out.Len()
-
-	switch {
-	case marker == 0:
-		// This is the doc header
-		out.WriteString(".TH ")
-	case level == 1:
-		out.WriteString("\n\n.SH ")
-	case level == 2:
-		out.WriteString("\n.SH ")
-	default:
-		out.WriteString("\n.SS ")
-	}
-
-	if !text() {
-		out.Truncate(marker)
-		return
-	}
-}
-
-func (r *roffRenderer) HRule(out *bytes.Buffer) {
-	out.WriteString("\n.ti 0\n\\l'\\n(.lu'\n")
-}
-
-func (r *roffRenderer) List(out *bytes.Buffer, text func() bool, flags int) {
-	marker := out.Len()
-	if flags&blackfriday.LIST_TYPE_ORDERED != 0 {
-		listCounter = 1
-	}
-	if !text() {
-		out.Truncate(marker)
-		return
-	}
-}
-
-func (r *roffRenderer) ListItem(out *bytes.Buffer, text []byte, flags int) {
-	if flags&blackfriday.LIST_TYPE_ORDERED != 0 {
-		out.WriteString(fmt.Sprintf(".IP \"%3d.\" 5\n", listCounter))
-		listCounter += 1
-	} else {
-		out.WriteString(".IP \\(bu 2\n")
-	}
-	out.Write(text)
-	out.WriteString("\n")
-}
-
-func (r *roffRenderer) Paragraph(out *bytes.Buffer, text func() bool) {
-	marker := out.Len()
-	out.WriteString("\n.PP\n")
-	if !text() {
-		out.Truncate(marker)
-		return
-	}
-	if marker != 0 {
-		out.WriteString("\n")
-	}
-}
-
-func (r *roffRenderer) Table(out *bytes.Buffer, header []byte, body []byte, columnData []int) {
-	out.WriteString("\n.TS\nallbox;\n")
-
-	max_delims := 0
-	lines := strings.Split(strings.TrimRight(string(header), "\n")+"\n"+strings.TrimRight(string(body), "\n"), "\n")
-	for _, w := range lines {
-		cur_delims := strings.Count(w, "\t")
-		if cur_delims > max_delims {
-			max_delims = cur_delims
-		}
-	}
-	out.Write([]byte(strings.Repeat("l ", max_delims+1) + "\n"))
-	out.Write([]byte(strings.Repeat("l ", max_delims+1) + ".\n"))
-	out.Write(header)
-	if len(header) > 0 {
-		out.Write([]byte("\n"))
-	}
-
-	out.Write(body)
-	out.WriteString("\n.TE\n")
-}
-
-func (r *roffRenderer) TableRow(out *bytes.Buffer, text []byte) {
-	if out.Len() > 0 {
-		out.WriteString("\n")
-	}
-	out.Write(text)
-}
-
-func (r *roffRenderer) TableHeaderCell(out *bytes.Buffer, text []byte, align int) {
-	if out.Len() > 0 {
-		out.WriteString("\t")
-	}
-	if len(text) == 0 {
-		text = []byte{' '}
-	}
-	out.Write([]byte("\\fB\\fC" + string(text) + "\\fR"))
-}
-
-func (r *roffRenderer) TableCell(out *bytes.Buffer, text []byte, align int) {
-	if out.Len() > 0 {
-		out.WriteString("\t")
-	}
-	if len(text) > 30 {
-		text = append([]byte("T{\n"), text...)
-		text = append(text, []byte("\nT}")...)
-	}
-	if len(text) == 0 {
-		text = []byte{' '}
-	}
-	out.Write(text)
-}
-
-func (r *roffRenderer) Footnotes(out *bytes.Buffer, text func() bool) {
-
-}
-
-func (r *roffRenderer) FootnoteItem(out *bytes.Buffer, name, text []byte, flags int) {
-
-}
-
-func (r *roffRenderer) AutoLink(out *bytes.Buffer, link []byte, kind int) {
-	out.WriteString("\n\\[la]")
-	out.Write(link)
-	out.WriteString("\\[ra]")
-}
-
-func (r *roffRenderer) CodeSpan(out *bytes.Buffer, text []byte) {
-	out.WriteString("\\fB\\fC")
-	escapeSpecialChars(out, text)
-	out.WriteString("\\fR")
-}
-
-func (r *roffRenderer) DoubleEmphasis(out *bytes.Buffer, text []byte) {
-	out.WriteString("\\fB")
-	out.Write(text)
-	out.WriteString("\\fP")
-}
-
-func (r *roffRenderer) Emphasis(out *bytes.Buffer, text []byte) {
-	out.WriteString("\\fI")
-	out.Write(text)
-	out.WriteString("\\fP")
-}
-
-func (r *roffRenderer) Image(out *bytes.Buffer, link []byte, title []byte, alt []byte) {
-}
-
-func (r *roffRenderer) LineBreak(out *bytes.Buffer) {
-	out.WriteString("\n.br\n")
-}
-
-func (r *roffRenderer) Link(out *bytes.Buffer, link []byte, title []byte, content []byte) {
-	out.Write(content)
-	r.AutoLink(out, link, 0)
-}
-
-func (r *roffRenderer) RawHtmlTag(out *bytes.Buffer, tag []byte) {
-	out.Write(tag)
-}
-
-func (r *roffRenderer) TripleEmphasis(out *bytes.Buffer, text []byte) {
-	out.WriteString("\\s+2")
-	out.Write(text)
-	out.WriteString("\\s-2")
-}
-
-func (r *roffRenderer) StrikeThrough(out *bytes.Buffer, text []byte) {
-}
-
-func (r *roffRenderer) FootnoteRef(out *bytes.Buffer, ref []byte, id int) {
-
-}
-
-func (r *roffRenderer) Entity(out *bytes.Buffer, entity []byte) {
-	out.WriteString(html.UnescapeString(string(entity)))
-}
-
-func processFooterText(text []byte) []byte {
-	text = bytes.TrimPrefix(text, []byte("% "))
-	newText := []byte{}
-	textArr := strings.Split(string(text), ") ")
-
-	for i, w := range textArr {
-		if i == 0 {
-			w = strings.Replace(w, "(", "\" \"", 1)
-			w = fmt.Sprintf("\"%s\"", w)
-		} else {
-			w = fmt.Sprintf(" \"%s\"", w)
-		}
-		newText = append(newText, []byte(w)...)
-	}
-	newText = append(newText, []byte(" \"\"")...)
-
-	return newText
-}
-
-func (r *roffRenderer) NormalText(out *bytes.Buffer, text []byte) {
-	escapeSpecialChars(out, text)
-}
-
-func (r *roffRenderer) DocumentHeader(out *bytes.Buffer) {
-}
-
-func (r *roffRenderer) DocumentFooter(out *bytes.Buffer) {
-}
-
-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++ {
-		// escape initial apostrophe or period
-		if len(text) >= 1 && (text[0] == '\'' || text[0] == '.') {
-			out.WriteString("\\&")
-		}
-
-		// 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])
-	}
-}

vendor/github.com/russross/blackfriday/LICENSE.txt

@@ -1,29 +0,0 @@
-Blackfriday is distributed under the Simplified BSD License:
-
-> Copyright © 2011 Russ Ross
-> All rights reserved.
->
-> Redistribution and use in source and binary forms, with or without
-> modification, are permitted provided that the following conditions
-> are met:
->
-> 1.  Redistributions of source code must retain the above copyright
->     notice, this list of conditions and the following disclaimer.
->
-> 2.  Redistributions in binary form must reproduce the above
->     copyright notice, this list of conditions and the following
->     disclaimer in the documentation and/or other materials provided with
->     the distribution.
->
-> THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-> "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-> LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
-> FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
-> COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
-> INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
-> BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-> LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
-> CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-> LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
-> ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-> POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/russross/blackfriday/block.go

@@ -1,1450 +0,0 @@
-//
-// 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.
-//
-
-//
-// Functions to parse block-level elements.
-//
-
-package blackfriday
-
-import (
-	"bytes"
-	"unicode"
-)
-
-// Parse block-level data.
-// Note: this function and many that it calls assume that
-// the input buffer ends with a newline.
-func (p *parser) block(out *bytes.Buffer, data []byte) {
-	if len(data) == 0 || data[len(data)-1] != '\n' {
-		panic("block input is missing terminating newline")
-	}
-
-	// this is called recursively: enforce a maximum depth
-	if p.nesting >= p.maxNesting {
-		return
-	}
-	p.nesting++
-
-	// parse out one block-level construct at a time
-	for len(data) > 0 {
-		// prefixed header:
-		//
-		// # Header 1
-		// ## Header 2
-		// ...
-		// ###### Header 6
-		if p.isPrefixHeader(data) {
-			data = data[p.prefixHeader(out, data):]
-			continue
-		}
-
-		// block of preformatted HTML:
-		//
-		// <div>
-		//     ...
-		// </div>
-		if data[0] == '<' {
-			if i := p.html(out, data, true); i > 0 {
-				data = data[i:]
-				continue
-			}
-		}
-
-		// title block
-		//
-		// % stuff
-		// % more stuff
-		// % even more stuff
-		if p.flags&EXTENSION_TITLEBLOCK != 0 {
-			if data[0] == '%' {
-				if i := p.titleBlock(out, data, true); i > 0 {
-					data = data[i:]
-					continue
-				}
-			}
-		}
-
-		// blank lines.  note: returns the # of bytes to skip
-		if i := p.isEmpty(data); i > 0 {
-			data = data[i:]
-			continue
-		}
-
-		// indented code block:
-		//
-		//     func max(a, b int) int {
-		//         if a > b {
-		//             return a
-		//         }
-		//         return b
-		//      }
-		if p.codePrefix(data) > 0 {
-			data = data[p.code(out, data):]
-			continue
-		}
-
-		// fenced code block:
-		//
-		// ``` go
-		// func fact(n int) int {
-		//     if n <= 1 {
-		//         return n
-		//     }
-		//     return n * fact(n-1)
-		// }
-		// ```
-		if p.flags&EXTENSION_FENCED_CODE != 0 {
-			if i := p.fencedCodeBlock(out, data, true); i > 0 {
-				data = data[i:]
-				continue
-			}
-		}
-
-		// horizontal rule:
-		//
-		// ------
-		// or
-		// ******
-		// or
-		// ______
-		if p.isHRule(data) {
-			p.r.HRule(out)
-			var i int
-			for i = 0; data[i] != '\n'; i++ {
-			}
-			data = data[i:]
-			continue
-		}
-
-		// block quote:
-		//
-		// > A big quote I found somewhere
-		// > on the web
-		if p.quotePrefix(data) > 0 {
-			data = data[p.quote(out, data):]
-			continue
-		}
-
-		// table:
-		//
-		// Name  | Age | Phone
-		// ------|-----|---------
-		// Bob   | 31  | 555-1234
-		// Alice | 27  | 555-4321
-		if p.flags&EXTENSION_TABLES != 0 {
-			if i := p.table(out, data); i > 0 {
-				data = data[i:]
-				continue
-			}
-		}
-
-		// an itemized/unordered list:
-		//
-		// * Item 1
-		// * Item 2
-		//
-		// also works with + or -
-		if p.uliPrefix(data) > 0 {
-			data = data[p.list(out, data, 0):]
-			continue
-		}
-
-		// a numbered/ordered list:
-		//
-		// 1. Item 1
-		// 2. Item 2
-		if p.oliPrefix(data) > 0 {
-			data = data[p.list(out, data, LIST_TYPE_ORDERED):]
-			continue
-		}
-
-		// definition lists:
-		//
-		// Term 1
-		// :   Definition a
-		// :   Definition b
-		//
-		// Term 2
-		// :   Definition c
-		if p.flags&EXTENSION_DEFINITION_LISTS != 0 {
-			if p.dliPrefix(data) > 0 {
-				data = data[p.list(out, data, LIST_TYPE_DEFINITION):]
-				continue
-			}
-		}
-
-		// anything else must look like a normal paragraph
-		// note: this finds underlined headers, too
-		data = data[p.paragraph(out, data):]
-	}
-
-	p.nesting--
-}
-
-func (p *parser) isPrefixHeader(data []byte) bool {
-	if data[0] != '#' {
-		return false
-	}
-
-	if p.flags&EXTENSION_SPACE_HEADERS != 0 {
-		level := 0
-		for level < 6 && data[level] == '#' {
-			level++
-		}
-		if data[level] != ' ' {
-			return false
-		}
-	}
-	return true
-}
-
-func (p *parser) prefixHeader(out *bytes.Buffer, data []byte) int {
-	level := 0
-	for level < 6 && data[level] == '#' {
-		level++
-	}
-	i := skipChar(data, level, ' ')
-	end := skipUntilChar(data, i, '\n')
-	skip := end
-	id := ""
-	if p.flags&EXTENSION_HEADER_IDS != 0 {
-		j, k := 0, 0
-		// find start/end of header id
-		for j = i; j < end-1 && (data[j] != '{' || data[j+1] != '#'); j++ {
-		}
-		for k = j + 1; k < end && data[k] != '}'; k++ {
-		}
-		// extract header id iff found
-		if j < end && k < end {
-			id = string(data[j+2 : k])
-			end = j
-			skip = k + 1
-			for end > 0 && data[end-1] == ' ' {
-				end--
-			}
-		}
-	}
-	for end > 0 && data[end-1] == '#' {
-		if isBackslashEscaped(data, end-1) {
-			break
-		}
-		end--
-	}
-	for end > 0 && data[end-1] == ' ' {
-		end--
-	}
-	if end > i {
-		if id == "" && p.flags&EXTENSION_AUTO_HEADER_IDS != 0 {
-			id = SanitizedAnchorName(string(data[i:end]))
-		}
-		work := func() bool {
-			p.inline(out, data[i:end])
-			return true
-		}
-		p.r.Header(out, work, level, id)
-	}
-	return skip
-}
-
-func (p *parser) isUnderlinedHeader(data []byte) int {
-	// test of level 1 header
-	if data[0] == '=' {
-		i := skipChar(data, 1, '=')
-		i = skipChar(data, i, ' ')
-		if data[i] == '\n' {
-			return 1
-		} else {
-			return 0
-		}
-	}
-
-	// test of level 2 header
-	if data[0] == '-' {
-		i := skipChar(data, 1, '-')
-		i = skipChar(data, i, ' ')
-		if data[i] == '\n' {
-			return 2
-		} else {
-			return 0
-		}
-	}
-
-	return 0
-}
-
-func (p *parser) titleBlock(out *bytes.Buffer, data []byte, doRender bool) int {
-	if data[0] != '%' {
-		return 0
-	}
-	splitData := bytes.Split(data, []byte("\n"))
-	var i int
-	for idx, b := range splitData {
-		if !bytes.HasPrefix(b, []byte("%")) {
-			i = idx // - 1
-			break
-		}
-	}
-
-	data = bytes.Join(splitData[0:i], []byte("\n"))
-	p.r.TitleBlock(out, data)
-
-	return len(data)
-}
-
-func (p *parser) html(out *bytes.Buffer, data []byte, doRender bool) int {
-	var i, j int
-
-	// identify the opening tag
-	if data[0] != '<' {
-		return 0
-	}
-	curtag, tagfound := p.htmlFindTag(data[1:])
-
-	// handle special cases
-	if !tagfound {
-		// check for an HTML comment
-		if size := p.htmlComment(out, data, doRender); size > 0 {
-			return size
-		}
-
-		// check for an <hr> tag
-		if size := p.htmlHr(out, data, doRender); size > 0 {
-			return size
-		}
-
-		// check for HTML CDATA
-		if size := p.htmlCDATA(out, data, doRender); size > 0 {
-			return size
-		}
-
-		// no special case recognized
-		return 0
-	}
-
-	// look for an unindented matching closing tag
-	// followed by a blank line
-	found := false
-	/*
-		closetag := []byte("\n</" + curtag + ">")
-		j = len(curtag) + 1
-		for !found {
-			// scan for a closing tag at the beginning of a line
-			if skip := bytes.Index(data[j:], closetag); skip >= 0 {
-				j += skip + len(closetag)
-			} else {
-				break
-			}
-
-			// see if it is the only thing on the line
-			if skip := p.isEmpty(data[j:]); skip > 0 {
-				// see if it is followed by a blank line/eof
-				j += skip
-				if j >= len(data) {
-					found = true
-					i = j
-				} else {
-					if skip := p.isEmpty(data[j:]); skip > 0 {
-						j += skip
-						found = true
-						i = j
-					}
-				}
-			}
-		}
-	*/
-
-	// if not found, try a second pass looking for indented match
-	// but not if tag is "ins" or "del" (following original Markdown.pl)
-	if !found && curtag != "ins" && curtag != "del" {
-		i = 1
-		for i < len(data) {
-			i++
-			for i < len(data) && !(data[i-1] == '<' && data[i] == '/') {
-				i++
-			}
-
-			if i+2+len(curtag) >= len(data) {
-				break
-			}
-
-			j = p.htmlFindEnd(curtag, data[i-1:])
-
-			if j > 0 {
-				i += j - 1
-				found = true
-				break
-			}
-		}
-	}
-
-	if !found {
-		return 0
-	}
-
-	// the end of the block has been found
-	if doRender {
-		// trim newlines
-		end := i
-		for end > 0 && data[end-1] == '\n' {
-			end--
-		}
-		p.r.BlockHtml(out, data[:end])
-	}
-
-	return i
-}
-
-func (p *parser) renderHTMLBlock(out *bytes.Buffer, data []byte, start int, doRender bool) int {
-	// html block needs to end with a blank line
-	if i := p.isEmpty(data[start:]); i > 0 {
-		size := start + i
-		if doRender {
-			// trim trailing newlines
-			end := size
-			for end > 0 && data[end-1] == '\n' {
-				end--
-			}
-			p.r.BlockHtml(out, data[:end])
-		}
-		return size
-	}
-	return 0
-}
-
-// HTML comment, lax form
-func (p *parser) htmlComment(out *bytes.Buffer, data []byte, doRender bool) int {
-	i := p.inlineHTMLComment(out, data)
-	return p.renderHTMLBlock(out, data, i, doRender)
-}
-
-// HTML CDATA section
-func (p *parser) htmlCDATA(out *bytes.Buffer, data []byte, doRender bool) int {
-	const cdataTag = "<![cdata["
-	const cdataTagLen = len(cdataTag)
-	if len(data) < cdataTagLen+1 {
-		return 0
-	}
-	if !bytes.Equal(bytes.ToLower(data[:cdataTagLen]), []byte(cdataTag)) {
-		return 0
-	}
-	i := cdataTagLen
-	// scan for an end-of-comment marker, across lines if necessary
-	for i < len(data) && !(data[i-2] == ']' && data[i-1] == ']' && data[i] == '>') {
-		i++
-	}
-	i++
-	// no end-of-comment marker
-	if i >= len(data) {
-		return 0
-	}
-	return p.renderHTMLBlock(out, data, i, doRender)
-}
-
-// HR, which is the only self-closing block tag considered
-func (p *parser) htmlHr(out *bytes.Buffer, data []byte, doRender bool) int {
-	if data[0] != '<' || (data[1] != 'h' && data[1] != 'H') || (data[2] != 'r' && data[2] != 'R') {
-		return 0
-	}
-	if data[3] != ' ' && data[3] != '/' && data[3] != '>' {
-		// not an <hr> tag after all; at least not a valid one
-		return 0
-	}
-
-	i := 3
-	for data[i] != '>' && data[i] != '\n' {
-		i++
-	}
-
-	if data[i] == '>' {
-		return p.renderHTMLBlock(out, data, i+1, doRender)
-	}
-
-	return 0
-}
-
-func (p *parser) htmlFindTag(data []byte) (string, bool) {
-	i := 0
-	for isalnum(data[i]) {
-		i++
-	}
-	key := string(data[:i])
-	if _, ok := blockTags[key]; ok {
-		return key, true
-	}
-	return "", false
-}
-
-func (p *parser) htmlFindEnd(tag string, data []byte) int {
-	// assume data[0] == '<' && data[1] == '/' already tested
-
-	// check if tag is a match
-	closetag := []byte("</" + tag + ">")
-	if !bytes.HasPrefix(data, closetag) {
-		return 0
-	}
-	i := len(closetag)
-
-	// check that the rest of the line is blank
-	skip := 0
-	if skip = p.isEmpty(data[i:]); skip == 0 {
-		return 0
-	}
-	i += skip
-	skip = 0
-
-	if i >= len(data) {
-		return i
-	}
-
-	if p.flags&EXTENSION_LAX_HTML_BLOCKS != 0 {
-		return i
-	}
-	if skip = p.isEmpty(data[i:]); skip == 0 {
-		// following line must be blank
-		return 0
-	}
-
-	return i + skip
-}
-
-func (*parser) isEmpty(data []byte) int {
-	// it is okay to call isEmpty on an empty buffer
-	if len(data) == 0 {
-		return 0
-	}
-
-	var i int
-	for i = 0; i < len(data) && data[i] != '\n'; i++ {
-		if data[i] != ' ' && data[i] != '\t' {
-			return 0
-		}
-	}
-	return i + 1
-}
-
-func (*parser) isHRule(data []byte) bool {
-	i := 0
-
-	// skip up to three spaces
-	for i < 3 && data[i] == ' ' {
-		i++
-	}
-
-	// look at the hrule char
-	if data[i] != '*' && data[i] != '-' && data[i] != '_' {
-		return false
-	}
-	c := data[i]
-
-	// the whole line must be the char or whitespace
-	n := 0
-	for data[i] != '\n' {
-		switch {
-		case data[i] == c:
-			n++
-		case data[i] != ' ':
-			return false
-		}
-		i++
-	}
-
-	return n >= 3
-}
-
-// isFenceLine checks if there's a fence line (e.g., ``` or ``` go) at the beginning of data,
-// and returns the end index if so, or 0 otherwise. It also returns the marker found.
-// If syntax is not nil, it gets set to the syntax specified in the fence line.
-// A final newline is mandatory to recognize the fence line, unless newlineOptional is true.
-func isFenceLine(data []byte, syntax *string, oldmarker string, newlineOptional bool) (end int, marker string) {
-	i, size := 0, 0
-
-	// skip up to three spaces
-	for i < len(data) && i < 3 && data[i] == ' ' {
-		i++
-	}
-
-	// check for the marker characters: ~ or `
-	if i >= len(data) {
-		return 0, ""
-	}
-	if data[i] != '~' && data[i] != '`' {
-		return 0, ""
-	}
-
-	c := data[i]
-
-	// the whole line must be the same char or whitespace
-	for i < len(data) && data[i] == c {
-		size++
-		i++
-	}
-
-	// the marker char must occur at least 3 times
-	if size < 3 {
-		return 0, ""
-	}
-	marker = string(data[i-size : i])
-
-	// if this is the end marker, it must match the beginning marker
-	if oldmarker != "" && marker != oldmarker {
-		return 0, ""
-	}
-
-	// TODO(shurcooL): It's probably a good idea to simplify the 2 code paths here
-	// into one, always get the syntax, and discard it if the caller doesn't care.
-	if syntax != nil {
-		syn := 0
-		i = skipChar(data, i, ' ')
-
-		if i >= len(data) {
-			if newlineOptional && i == len(data) {
-				return i, marker
-			}
-			return 0, ""
-		}
-
-		syntaxStart := i
-
-		if data[i] == '{' {
-			i++
-			syntaxStart++
-
-			for i < len(data) && data[i] != '}' && data[i] != '\n' {
-				syn++
-				i++
-			}
-
-			if i >= len(data) || data[i] != '}' {
-				return 0, ""
-			}
-
-			// strip all whitespace at the beginning and the end
-			// of the {} block
-			for syn > 0 && isspace(data[syntaxStart]) {
-				syntaxStart++
-				syn--
-			}
-
-			for syn > 0 && isspace(data[syntaxStart+syn-1]) {
-				syn--
-			}
-
-			i++
-		} else {
-			for i < len(data) && !isspace(data[i]) {
-				syn++
-				i++
-			}
-		}
-
-		*syntax = string(data[syntaxStart : syntaxStart+syn])
-	}
-
-	i = skipChar(data, i, ' ')
-	if i >= len(data) || data[i] != '\n' {
-		if newlineOptional && i == len(data) {
-			return i, marker
-		}
-		return 0, ""
-	}
-
-	return i + 1, marker // Take newline into account.
-}
-
-// fencedCodeBlock returns the end index if data contains a fenced code block at the beginning,
-// or 0 otherwise. It writes to out if doRender is true, otherwise it has no side effects.
-// If doRender is true, a final newline is mandatory to recognize the fenced code block.
-func (p *parser) fencedCodeBlock(out *bytes.Buffer, data []byte, doRender bool) int {
-	var syntax string
-	beg, marker := isFenceLine(data, &syntax, "", false)
-	if beg == 0 || beg >= len(data) {
-		return 0
-	}
-
-	var work bytes.Buffer
-
-	for {
-		// safe to assume beg < len(data)
-
-		// check for the end of the code block
-		newlineOptional := !doRender
-		fenceEnd, _ := isFenceLine(data[beg:], nil, marker, newlineOptional)
-		if fenceEnd != 0 {
-			beg += fenceEnd
-			break
-		}
-
-		// copy the current line
-		end := skipUntilChar(data, beg, '\n') + 1
-
-		// did we reach the end of the buffer without a closing marker?
-		if end >= len(data) {
-			return 0
-		}
-
-		// verbatim copy to the working buffer
-		if doRender {
-			work.Write(data[beg:end])
-		}
-		beg = end
-	}
-
-	if doRender {
-		p.r.BlockCode(out, work.Bytes(), syntax)
-	}
-
-	return beg
-}
-
-func (p *parser) table(out *bytes.Buffer, data []byte) int {
-	var header bytes.Buffer
-	i, columns := p.tableHeader(&header, data)
-	if i == 0 {
-		return 0
-	}
-
-	var body bytes.Buffer
-
-	for i < len(data) {
-		pipes, rowStart := 0, i
-		for ; data[i] != '\n'; i++ {
-			if data[i] == '|' {
-				pipes++
-			}
-		}
-
-		if pipes == 0 {
-			i = rowStart
-			break
-		}
-
-		// include the newline in data sent to tableRow
-		i++
-		p.tableRow(&body, data[rowStart:i], columns, false)
-	}
-
-	p.r.Table(out, header.Bytes(), body.Bytes(), columns)
-
-	return i
-}
-
-// check if the specified position is preceded by an odd number of backslashes
-func isBackslashEscaped(data []byte, i int) bool {
-	backslashes := 0
-	for i-backslashes-1 >= 0 && data[i-backslashes-1] == '\\' {
-		backslashes++
-	}
-	return backslashes&1 == 1
-}
-
-func (p *parser) tableHeader(out *bytes.Buffer, data []byte) (size int, columns []int) {
-	i := 0
-	colCount := 1
-	for i = 0; data[i] != '\n'; i++ {
-		if data[i] == '|' && !isBackslashEscaped(data, i) {
-			colCount++
-		}
-	}
-
-	// doesn't look like a table header
-	if colCount == 1 {
-		return
-	}
-
-	// include the newline in the data sent to tableRow
-	header := data[:i+1]
-
-	// column count ignores pipes at beginning or end of line
-	if data[0] == '|' {
-		colCount--
-	}
-	if i > 2 && data[i-1] == '|' && !isBackslashEscaped(data, i-1) {
-		colCount--
-	}
-
-	columns = make([]int, colCount)
-
-	// move on to the header underline
-	i++
-	if i >= len(data) {
-		return
-	}
-
-	if data[i] == '|' && !isBackslashEscaped(data, i) {
-		i++
-	}
-	i = skipChar(data, i, ' ')
-
-	// each column header is of form: / *:?-+:? *|/ with # dashes + # colons >= 3
-	// and trailing | optional on last column
-	col := 0
-	for data[i] != '\n' {
-		dashes := 0
-
-		if data[i] == ':' {
-			i++
-			columns[col] |= TABLE_ALIGNMENT_LEFT
-			dashes++
-		}
-		for data[i] == '-' {
-			i++
-			dashes++
-		}
-		if data[i] == ':' {
-			i++
-			columns[col] |= TABLE_ALIGNMENT_RIGHT
-			dashes++
-		}
-		for data[i] == ' ' {
-			i++
-		}
-
-		// end of column test is messy
-		switch {
-		case dashes < 3:
-			// not a valid column
-			return
-
-		case data[i] == '|' && !isBackslashEscaped(data, i):
-			// marker found, now skip past trailing whitespace
-			col++
-			i++
-			for data[i] == ' ' {
-				i++
-			}
-
-			// trailing junk found after last column
-			if col >= colCount && data[i] != '\n' {
-				return
-			}
-
-		case (data[i] != '|' || isBackslashEscaped(data, i)) && col+1 < colCount:
-			// something else found where marker was required
-			return
-
-		case data[i] == '\n':
-			// marker is optional for the last column
-			col++
-
-		default:
-			// trailing junk found after last column
-			return
-		}
-	}
-	if col != colCount {
-		return
-	}
-
-	p.tableRow(out, header, columns, true)
-	size = i + 1
-	return
-}
-
-func (p *parser) tableRow(out *bytes.Buffer, data []byte, columns []int, header bool) {
-	i, col := 0, 0
-	var rowWork bytes.Buffer
-
-	if data[i] == '|' && !isBackslashEscaped(data, i) {
-		i++
-	}
-
-	for col = 0; col < len(columns) && i < len(data); col++ {
-		for data[i] == ' ' {
-			i++
-		}
-
-		cellStart := i
-
-		for (data[i] != '|' || isBackslashEscaped(data, i)) && data[i] != '\n' {
-			i++
-		}
-
-		cellEnd := i
-
-		// skip the end-of-cell marker, possibly taking us past end of buffer
-		i++
-
-		for cellEnd > cellStart && data[cellEnd-1] == ' ' {
-			cellEnd--
-		}
-
-		var cellWork bytes.Buffer
-		p.inline(&cellWork, data[cellStart:cellEnd])
-
-		if header {
-			p.r.TableHeaderCell(&rowWork, cellWork.Bytes(), columns[col])
-		} else {
-			p.r.TableCell(&rowWork, cellWork.Bytes(), columns[col])
-		}
-	}
-
-	// pad it out with empty columns to get the right number
-	for ; col < len(columns); col++ {
-		if header {
-			p.r.TableHeaderCell(&rowWork, nil, columns[col])
-		} else {
-			p.r.TableCell(&rowWork, nil, columns[col])
-		}
-	}
-
-	// silently ignore rows with too many cells
-
-	p.r.TableRow(out, rowWork.Bytes())
-}
-
-// returns blockquote prefix length
-func (p *parser) quotePrefix(data []byte) int {
-	i := 0
-	for i < 3 && data[i] == ' ' {
-		i++
-	}
-	if data[i] == '>' {
-		if data[i+1] == ' ' {
-			return i + 2
-		}
-		return i + 1
-	}
-	return 0
-}
-
-// blockquote ends with at least one blank line
-// followed by something without a blockquote prefix
-func (p *parser) terminateBlockquote(data []byte, beg, end int) bool {
-	if p.isEmpty(data[beg:]) <= 0 {
-		return false
-	}
-	if end >= len(data) {
-		return true
-	}
-	return p.quotePrefix(data[end:]) == 0 && p.isEmpty(data[end:]) == 0
-}
-
-// parse a blockquote fragment
-func (p *parser) quote(out *bytes.Buffer, data []byte) int {
-	var raw bytes.Buffer
-	beg, end := 0, 0
-	for beg < len(data) {
-		end = beg
-		// Step over whole lines, collecting them. While doing that, check for
-		// fenced code and if one's found, incorporate it altogether,
-		// irregardless of any contents inside it
-		for data[end] != '\n' {
-			if p.flags&EXTENSION_FENCED_CODE != 0 {
-				if i := p.fencedCodeBlock(out, data[end:], false); i > 0 {
-					// -1 to compensate for the extra end++ after the loop:
-					end += i - 1
-					break
-				}
-			}
-			end++
-		}
-		end++
-
-		if pre := p.quotePrefix(data[beg:]); pre > 0 {
-			// skip the prefix
-			beg += pre
-		} else if p.terminateBlockquote(data, beg, end) {
-			break
-		}
-
-		// this line is part of the blockquote
-		raw.Write(data[beg:end])
-		beg = end
-	}
-
-	var cooked bytes.Buffer
-	p.block(&cooked, raw.Bytes())
-	p.r.BlockQuote(out, cooked.Bytes())
-	return end
-}
-
-// returns prefix length for block code
-func (p *parser) codePrefix(data []byte) int {
-	if data[0] == ' ' && data[1] == ' ' && data[2] == ' ' && data[3] == ' ' {
-		return 4
-	}
-	return 0
-}
-
-func (p *parser) code(out *bytes.Buffer, data []byte) int {
-	var work bytes.Buffer
-
-	i := 0
-	for i < len(data) {
-		beg := i
-		for data[i] != '\n' {
-			i++
-		}
-		i++
-
-		blankline := p.isEmpty(data[beg:i]) > 0
-		if pre := p.codePrefix(data[beg:i]); pre > 0 {
-			beg += pre
-		} else if !blankline {
-			// non-empty, non-prefixed line breaks the pre
-			i = beg
-			break
-		}
-
-		// verbatim copy to the working buffeu
-		if blankline {
-			work.WriteByte('\n')
-		} else {
-			work.Write(data[beg:i])
-		}
-	}
-
-	// trim all the \n off the end of work
-	workbytes := work.Bytes()
-	eol := len(workbytes)
-	for eol > 0 && workbytes[eol-1] == '\n' {
-		eol--
-	}
-	if eol != len(workbytes) {
-		work.Truncate(eol)
-	}
-
-	work.WriteByte('\n')
-
-	p.r.BlockCode(out, work.Bytes(), "")
-
-	return i
-}
-
-// returns unordered list item prefix
-func (p *parser) uliPrefix(data []byte) int {
-	i := 0
-
-	// start with up to 3 spaces
-	for i < 3 && data[i] == ' ' {
-		i++
-	}
-
-	// need a *, +, or - followed by a space
-	if (data[i] != '*' && data[i] != '+' && data[i] != '-') ||
-		data[i+1] != ' ' {
-		return 0
-	}
-	return i + 2
-}
-
-// returns ordered list item prefix
-func (p *parser) oliPrefix(data []byte) int {
-	i := 0
-
-	// start with up to 3 spaces
-	for i < 3 && data[i] == ' ' {
-		i++
-	}
-
-	// count the digits
-	start := i
-	for data[i] >= '0' && data[i] <= '9' {
-		i++
-	}
-
-	// we need >= 1 digits followed by a dot and a space
-	if start == i || data[i] != '.' || data[i+1] != ' ' {
-		return 0
-	}
-	return i + 2
-}
-
-// returns definition list item prefix
-func (p *parser) dliPrefix(data []byte) int {
-	i := 0
-
-	// need a : followed by a spaces
-	if data[i] != ':' || data[i+1] != ' ' {
-		return 0
-	}
-	for data[i] == ' ' {
-		i++
-	}
-	return i + 2
-}
-
-// parse ordered or unordered list block
-func (p *parser) list(out *bytes.Buffer, data []byte, flags int) int {
-	i := 0
-	flags |= LIST_ITEM_BEGINNING_OF_LIST
-	work := func() bool {
-		for i < len(data) {
-			skip := p.listItem(out, data[i:], &flags)
-			i += skip
-
-			if skip == 0 || flags&LIST_ITEM_END_OF_LIST != 0 {
-				break
-			}
-			flags &= ^LIST_ITEM_BEGINNING_OF_LIST
-		}
-		return true
-	}
-
-	p.r.List(out, work, flags)
-	return i
-}
-
-// Parse a single list item.
-// Assumes initial prefix is already removed if this is a sublist.
-func (p *parser) listItem(out *bytes.Buffer, data []byte, flags *int) int {
-	// keep track of the indentation of the first line
-	itemIndent := 0
-	for itemIndent < 3 && data[itemIndent] == ' ' {
-		itemIndent++
-	}
-
-	i := p.uliPrefix(data)
-	if i == 0 {
-		i = p.oliPrefix(data)
-	}
-	if i == 0 {
-		i = p.dliPrefix(data)
-		// reset definition term flag
-		if i > 0 {
-			*flags &= ^LIST_TYPE_TERM
-		}
-	}
-	if i == 0 {
-		// if in defnition list, set term flag and continue
-		if *flags&LIST_TYPE_DEFINITION != 0 {
-			*flags |= LIST_TYPE_TERM
-		} else {
-			return 0
-		}
-	}
-
-	// skip leading whitespace on first line
-	for data[i] == ' ' {
-		i++
-	}
-
-	// find the end of the line
-	line := i
-	for i > 0 && data[i-1] != '\n' {
-		i++
-	}
-
-	// get working buffer
-	var raw bytes.Buffer
-
-	// put the first line into the working buffer
-	raw.Write(data[line:i])
-	line = i
-
-	// process the following lines
-	containsBlankLine := false
-	sublist := 0
-
-gatherlines:
-	for line < len(data) {
-		i++
-
-		// find the end of this line
-		for 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[line:i]) > 0 {
-			containsBlankLine = true
-			raw.Write(data[line:i])
-			line = i
-			continue
-		}
-
-		// calculate the indentation
-		indent := 0
-		for indent < 4 && line+indent < i && data[line+indent] == ' ' {
-			indent++
-		}
-
-		chunk := data[line+indent : i]
-
-		// evaluate how this line fits in
-		switch {
-		// is this a nested list item?
-		case (p.uliPrefix(chunk) > 0 && !p.isHRule(chunk)) ||
-			p.oliPrefix(chunk) > 0 ||
-			p.dliPrefix(chunk) > 0:
-
-			if containsBlankLine {
-				// end the list if the type changed after a blank line
-				if indent <= itemIndent &&
-					((*flags&LIST_TYPE_ORDERED != 0 && p.uliPrefix(chunk) > 0) ||
-						(*flags&LIST_TYPE_ORDERED == 0 && p.oliPrefix(chunk) > 0)) {
-
-					*flags |= LIST_ITEM_END_OF_LIST
-					break gatherlines
-				}
-				*flags |= LIST_ITEM_CONTAINS_BLOCK
-			}
-
-			// to be a nested list, it must be indented more
-			// if not, it is the next item in the same list
-			if indent <= itemIndent {
-				break gatherlines
-			}
-
-			// is this the first item in the nested list?
-			if sublist == 0 {
-				sublist = raw.Len()
-			}
-
-		// is this a nested prefix header?
-		case p.isPrefixHeader(chunk):
-			// if the header is not indented, it is not nested in the list
-			// and thus ends the list
-			if containsBlankLine && indent < 4 {
-				*flags |= LIST_ITEM_END_OF_LIST
-				break gatherlines
-			}
-			*flags |= LIST_ITEM_CONTAINS_BLOCK
-
-		// anything following an empty line is only part
-		// of this item if it is indented 4 spaces
-		// (regardless of the indentation of the beginning of the item)
-		case containsBlankLine && indent < 4:
-			if *flags&LIST_TYPE_DEFINITION != 0 && i < len(data)-1 {
-				// is the next item still a part of this list?
-				next := i
-				for data[next] != '\n' {
-					next++
-				}
-				for next < len(data)-1 && data[next] == '\n' {
-					next++
-				}
-				if i < len(data)-1 && data[i] != ':' && data[next] != ':' {
-					*flags |= LIST_ITEM_END_OF_LIST
-				}
-			} else {
-				*flags |= LIST_ITEM_END_OF_LIST
-			}
-			break gatherlines
-
-		// a blank line means this should be parsed as a block
-		case containsBlankLine:
-			*flags |= LIST_ITEM_CONTAINS_BLOCK
-		}
-
-		containsBlankLine = false
-
-		// add the line into the working buffer without prefix
-		raw.Write(data[line+indent : i])
-
-		line = i
-	}
-
-	// If reached end of data, the Renderer.ListItem call we're going to make below
-	// is definitely the last in the list.
-	if line >= len(data) {
-		*flags |= LIST_ITEM_END_OF_LIST
-	}
-
-	rawBytes := raw.Bytes()
-
-	// render the contents of the list item
-	var cooked bytes.Buffer
-	if *flags&LIST_ITEM_CONTAINS_BLOCK != 0 && *flags&LIST_TYPE_TERM == 0 {
-		// intermediate render of block item, except for definition term
-		if sublist > 0 {
-			p.block(&cooked, rawBytes[:sublist])
-			p.block(&cooked, rawBytes[sublist:])
-		} else {
-			p.block(&cooked, rawBytes)
-		}
-	} else {
-		// intermediate render of inline item
-		if sublist > 0 {
-			p.inline(&cooked, rawBytes[:sublist])
-			p.block(&cooked, rawBytes[sublist:])
-		} else {
-			p.inline(&cooked, rawBytes)
-		}
-	}
-
-	// render the actual list item
-	cookedBytes := cooked.Bytes()
-	parsedEnd := len(cookedBytes)
-
-	// strip trailing newlines
-	for parsedEnd > 0 && cookedBytes[parsedEnd-1] == '\n' {
-		parsedEnd--
-	}
-	p.r.ListItem(out, cookedBytes[:parsedEnd], *flags)
-
-	return line
-}
-
-// render a single paragraph that has already been parsed out
-func (p *parser) renderParagraph(out *bytes.Buffer, data []byte) {
-	if len(data) == 0 {
-		return
-	}
-
-	// trim leading spaces
-	beg := 0
-	for data[beg] == ' ' {
-		beg++
-	}
-
-	// trim trailing newline
-	end := len(data) - 1
-
-	// trim trailing spaces
-	for end > beg && data[end-1] == ' ' {
-		end--
-	}
-
-	work := func() bool {
-		p.inline(out, data[beg:end])
-		return true
-	}
-	p.r.Paragraph(out, work)
-}
-
-func (p *parser) paragraph(out *bytes.Buffer, data []byte) int {
-	// prev: index of 1st char of previous line
-	// line: index of 1st char of current line
-	// i: index of cursor/end of current line
-	var prev, line, i int
-
-	// keep going until we find something to mark the end of the paragraph
-	for i < len(data) {
-		// mark the beginning of the current line
-		prev = line
-		current := data[i:]
-		line = i
-
-		// did we find a blank line marking the end of the paragraph?
-		if n := p.isEmpty(current); n > 0 {
-			// did this blank line followed by a definition list item?
-			if p.flags&EXTENSION_DEFINITION_LISTS != 0 {
-				if i < len(data)-1 && data[i+1] == ':' {
-					return p.list(out, data[prev:], LIST_TYPE_DEFINITION)
-				}
-			}
-
-			p.renderParagraph(out, data[:i])
-			return i + n
-		}
-
-		// an underline under some text marks a header, so our paragraph ended on prev line
-		if i > 0 {
-			if level := p.isUnderlinedHeader(current); level > 0 {
-				// render the paragraph
-				p.renderParagraph(out, data[:prev])
-
-				// ignore leading and trailing whitespace
-				eol := i - 1
-				for prev < eol && data[prev] == ' ' {
-					prev++
-				}
-				for eol > prev && data[eol-1] == ' ' {
-					eol--
-				}
-
-				// render the header
-				// this ugly double closure avoids forcing variables onto the heap
-				work := func(o *bytes.Buffer, pp *parser, d []byte) func() bool {
-					return func() bool {
-						pp.inline(o, d)
-						return true
-					}
-				}(out, p, data[prev:eol])
-
-				id := ""
-				if p.flags&EXTENSION_AUTO_HEADER_IDS != 0 {
-					id = SanitizedAnchorName(string(data[prev:eol]))
-				}
-
-				p.r.Header(out, work, level, id)
-
-				// find the end of the underline
-				for data[i] != '\n' {
-					i++
-				}
-				return i
-			}
-		}
-
-		// if the next line starts a block of HTML, then the paragraph ends here
-		if p.flags&EXTENSION_LAX_HTML_BLOCKS != 0 {
-			if data[i] == '<' && p.html(out, current, false) > 0 {
-				// rewind to before the HTML block
-				p.renderParagraph(out, data[:i])
-				return i
-			}
-		}
-
-		// if there's a prefixed header or a horizontal rule after this, paragraph is over
-		if p.isPrefixHeader(current) || p.isHRule(current) {
-			p.renderParagraph(out, data[:i])
-			return i
-		}
-
-		// if there's a fenced code block, paragraph is over
-		if p.flags&EXTENSION_FENCED_CODE != 0 {
-			if p.fencedCodeBlock(out, current, false) > 0 {
-				p.renderParagraph(out, data[:i])
-				return i
-			}
-		}
-
-		// if there's a definition list item, prev line is a definition term
-		if p.flags&EXTENSION_DEFINITION_LISTS != 0 {
-			if p.dliPrefix(current) != 0 {
-				return p.list(out, data[prev:], LIST_TYPE_DEFINITION)
-			}
-		}
-
-		// if there's a list after this, paragraph is over
-		if p.flags&EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK != 0 {
-			if p.uliPrefix(current) != 0 ||
-				p.oliPrefix(current) != 0 ||
-				p.quotePrefix(current) != 0 ||
-				p.codePrefix(current) != 0 {
-				p.renderParagraph(out, data[:i])
-				return i
-			}
-		}
-
-		// otherwise, scan to the beginning of the next line
-		for data[i] != '\n' {
-			i++
-		}
-		i++
-	}
-
-	p.renderParagraph(out, data[:i])
-	return i
-}
-
-// SanitizedAnchorName returns a sanitized anchor name for the given text.
-//
-// It implements the algorithm specified in the package comment.
-func SanitizedAnchorName(text string) string {
-	var anchorName []rune
-	futureDash := false
-	for _, r := range text {
-		switch {
-		case unicode.IsLetter(r) || unicode.IsNumber(r):
-			if futureDash && len(anchorName) > 0 {
-				anchorName = append(anchorName, '-')
-			}
-			futureDash = false
-			anchorName = append(anchorName, unicode.ToLower(r))
-		default:
-			futureDash = true
-		}
-	}
-	return string(anchorName)
-}

vendor/github.com/russross/blackfriday/doc.go

@@ -1,32 +0,0 @@
-// Package blackfriday is a Markdown processor.
-//
-// It translates plain text with simple formatting rules into HTML or LaTeX.
-//
-// Sanitized Anchor Names
-//
-// Blackfriday includes an algorithm for creating sanitized anchor names
-// corresponding to a given input text. This algorithm is used to create
-// anchors for headings when EXTENSION_AUTO_HEADER_IDS is enabled. The
-// algorithm is specified below, so that other packages can create
-// compatible anchor names and links to those anchors.
-//
-// The algorithm iterates over the input text, interpreted as UTF-8,
-// one Unicode code point (rune) at a time. All runes that are letters (category L)
-// or numbers (category N) are considered valid characters. They are mapped to
-// lower case, and included in the output. All other runes are considered
-// invalid characters. Invalid characters that preceed the first valid character,
-// as well as invalid character that follow the last valid character
-// are dropped completely. All other sequences of invalid characters
-// between two valid characters are replaced with a single dash character '-'.
-//
-// SanitizedAnchorName exposes this functionality, and can be used to
-// create compatible links to the anchor names generated by blackfriday.
-// This algorithm is also implemented in a small standalone package at
-// github.com/shurcooL/sanitized_anchor_name. It can be useful for clients
-// that want a small package and don't need full functionality of blackfriday.
-package blackfriday
-
-// NOTE: Keep Sanitized Anchor Name algorithm in sync with package
-//       github.com/shurcooL/sanitized_anchor_name.
-//       Otherwise, users of sanitized_anchor_name will get anchor names
-//       that are incompatible with those generated by blackfriday.

vendor/github.com/russross/blackfriday/html.go

@@ -1,950 +0,0 @@
-//
-// 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.
-//
-
-//
-//
-// HTML rendering backend
-//
-//
-
-package blackfriday
-
-import (
-	"bytes"
-	"fmt"
-	"regexp"
-	"strconv"
-	"strings"
-)
-
-// Html renderer configuration options.
-const (
-	HTML_SKIP_HTML                 = 1 << iota // skip preformatted HTML blocks
-	HTML_SKIP_STYLE                            // skip embedded <style> elements
-	HTML_SKIP_IMAGES                           // skip embedded images
-	HTML_SKIP_LINKS                            // skip all links
-	HTML_SAFELINK                              // only link to trusted protocols
-	HTML_NOFOLLOW_LINKS                        // only link with rel="nofollow"
-	HTML_NOREFERRER_LINKS                      // only link with rel="noreferrer"
-	HTML_HREF_TARGET_BLANK                     // add a blank target
-	HTML_TOC                                   // generate a table of contents
-	HTML_OMIT_CONTENTS                         // skip the main contents (for a standalone table of contents)
-	HTML_COMPLETE_PAGE                         // generate a complete HTML page
-	HTML_USE_XHTML                             // generate XHTML output instead of HTML
-	HTML_USE_SMARTYPANTS                       // enable smart punctuation substitutions
-	HTML_SMARTYPANTS_FRACTIONS                 // enable smart fractions (with HTML_USE_SMARTYPANTS)
-	HTML_SMARTYPANTS_DASHES                    // enable smart dashes (with HTML_USE_SMARTYPANTS)
-	HTML_SMARTYPANTS_LATEX_DASHES              // enable LaTeX-style dashes (with HTML_USE_SMARTYPANTS and HTML_SMARTYPANTS_DASHES)
-	HTML_SMARTYPANTS_ANGLED_QUOTES             // enable angled double quotes (with HTML_USE_SMARTYPANTS) for double quotes rendering
-	HTML_SMARTYPANTS_QUOTES_NBSP               // enable "French guillemets" (with HTML_USE_SMARTYPANTS)
-	HTML_FOOTNOTE_RETURN_LINKS                 // generate a link at the end of a footnote to return to the source
-)
-
-var (
-	alignments = []string{
-		"left",
-		"right",
-		"center",
-	}
-
-	// TODO: improve this regexp to catch all possible entities:
-	htmlEntity = regexp.MustCompile(`&[a-z]{2,5};`)
-)
-
-type HtmlRendererParameters struct {
-	// Prepend this text to each relative URL.
-	AbsolutePrefix string
-	// Add this text to each footnote anchor, to ensure uniqueness.
-	FootnoteAnchorPrefix string
-	// Show this text inside the <a> tag for a footnote return link, if the
-	// HTML_FOOTNOTE_RETURN_LINKS flag is enabled. If blank, the string
-	// <sup>[return]</sup> is used.
-	FootnoteReturnLinkContents string
-	// If set, add this text to the front of each Header ID, to ensure
-	// uniqueness.
-	HeaderIDPrefix string
-	// If set, add this text to the back of each Header ID, to ensure uniqueness.
-	HeaderIDSuffix string
-}
-
-// Html is a type that implements the Renderer interface for HTML output.
-//
-// Do not create this directly, instead use the HtmlRenderer function.
-type Html struct {
-	flags    int    // HTML_* options
-	closeTag string // how to end singleton tags: either " />" or ">"
-	title    string // document title
-	css      string // optional css file url (used with HTML_COMPLETE_PAGE)
-
-	parameters HtmlRendererParameters
-
-	// table of contents data
-	tocMarker    int
-	headerCount  int
-	currentLevel int
-	toc          *bytes.Buffer
-
-	// Track header IDs to prevent ID collision in a single generation.
-	headerIDs map[string]int
-
-	smartypants *smartypantsRenderer
-}
-
-const (
-	xhtmlClose = " />"
-	htmlClose  = ">"
-)
-
-// HtmlRenderer creates and configures an Html object, which
-// satisfies the Renderer interface.
-//
-// flags is a set of HTML_* options ORed together.
-// title is the title of the document, and css is a URL for the document's
-// stylesheet.
-// title and css are only used when HTML_COMPLETE_PAGE is selected.
-func HtmlRenderer(flags int, title string, css string) Renderer {
-	return HtmlRendererWithParameters(flags, title, css, HtmlRendererParameters{})
-}
-
-func HtmlRendererWithParameters(flags int, title string,
-	css string, renderParameters HtmlRendererParameters) Renderer {
-	// configure the rendering engine
-	closeTag := htmlClose
-	if flags&HTML_USE_XHTML != 0 {
-		closeTag = xhtmlClose
-	}
-
-	if renderParameters.FootnoteReturnLinkContents == "" {
-		renderParameters.FootnoteReturnLinkContents = `<sup>[return]</sup>`
-	}
-
-	return &Html{
-		flags:      flags,
-		closeTag:   closeTag,
-		title:      title,
-		css:        css,
-		parameters: renderParameters,
-
-		headerCount:  0,
-		currentLevel: 0,
-		toc:          new(bytes.Buffer),
-
-		headerIDs: make(map[string]int),
-
-		smartypants: smartypants(flags),
-	}
-}
-
-// Using if statements is a bit faster than a switch statement. As the compiler
-// improves, this should be unnecessary this is only worthwhile because
-// attrEscape is the single largest CPU user in normal use.
-// Also tried using map, but that gave a ~3x slowdown.
-func escapeSingleChar(char byte) (string, bool) {
-	if char == '"' {
-		return "&quot;", true
-	}
-	if char == '&' {
-		return "&amp;", true
-	}
-	if char == '<' {
-		return "&lt;", true
-	}
-	if char == '>' {
-		return "&gt;", true
-	}
-	return "", false
-}
-
-func attrEscape(out *bytes.Buffer, src []byte) {
-	org := 0
-	for i, ch := range src {
-		if entity, ok := escapeSingleChar(ch); ok {
-			if i > org {
-				// copy all the normal characters since the last escape
-				out.Write(src[org:i])
-			}
-			org = i + 1
-			out.WriteString(entity)
-		}
-	}
-	if org < len(src) {
-		out.Write(src[org:])
-	}
-}
-
-func entityEscapeWithSkip(out *bytes.Buffer, src []byte, skipRanges [][]int) {
-	end := 0
-	for _, rang := range skipRanges {
-		attrEscape(out, src[end:rang[0]])
-		out.Write(src[rang[0]:rang[1]])
-		end = rang[1]
-	}
-	attrEscape(out, src[end:])
-}
-
-func (options *Html) GetFlags() int {
-	return options.flags
-}
-
-func (options *Html) TitleBlock(out *bytes.Buffer, text []byte) {
-	text = bytes.TrimPrefix(text, []byte("% "))
-	text = bytes.Replace(text, []byte("\n% "), []byte("\n"), -1)
-	out.WriteString("<h1 class=\"title\">")
-	out.Write(text)
-	out.WriteString("\n</h1>")
-}
-
-func (options *Html) Header(out *bytes.Buffer, text func() bool, level int, id string) {
-	marker := out.Len()
-	doubleSpace(out)
-
-	if id == "" && options.flags&HTML_TOC != 0 {
-		id = fmt.Sprintf("toc_%d", options.headerCount)
-	}
-
-	if id != "" {
-		id = options.ensureUniqueHeaderID(id)
-
-		if options.parameters.HeaderIDPrefix != "" {
-			id = options.parameters.HeaderIDPrefix + id
-		}
-
-		if options.parameters.HeaderIDSuffix != "" {
-			id = id + options.parameters.HeaderIDSuffix
-		}
-
-		out.WriteString(fmt.Sprintf("<h%d id=\"%s\">", level, id))
-	} else {
-		out.WriteString(fmt.Sprintf("<h%d>", level))
-	}
-
-	tocMarker := out.Len()
-	if !text() {
-		out.Truncate(marker)
-		return
-	}
-
-	// are we building a table of contents?
-	if options.flags&HTML_TOC != 0 {
-		options.TocHeaderWithAnchor(out.Bytes()[tocMarker:], level, id)
-	}
-
-	out.WriteString(fmt.Sprintf("</h%d>\n", level))
-}
-
-func (options *Html) BlockHtml(out *bytes.Buffer, text []byte) {
-	if options.flags&HTML_SKIP_HTML != 0 {
-		return
-	}
-
-	doubleSpace(out)
-	out.Write(text)
-	out.WriteByte('\n')
-}
-
-func (options *Html) HRule(out *bytes.Buffer) {
-	doubleSpace(out)
-	out.WriteString("<hr")
-	out.WriteString(options.closeTag)
-	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)
-	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
-}

vendor/github.com/russross/blackfriday/inline.go

@@ -1,1154 +0,0 @@
-//
-// 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.
-//
-
-//
-// Functions to parse inline elements.
-//
-
-package blackfriday
-
-import (
-	"bytes"
-	"regexp"
-	"strconv"
-)
-
-var (
-	urlRe    = `((https?|ftp):\/\/|\/)[-A-Za-z0-9+&@#\/%?=~_|!:,.;\(\)]+`
-	anchorRe = regexp.MustCompile(`^(<a\shref="` + urlRe + `"(\stitle="[^"<>]+")?\s?>` + urlRe + `<\/a>)`)
-)
-
-// Functions to parse text within a block
-// Each function returns the number of chars taken care of
-// data is the complete block being rendered
-// offset is the number of valid chars before the current cursor
-
-func (p *parser) inline(out *bytes.Buffer, data []byte) {
-	// this is called recursively: enforce a maximum depth
-	if p.nesting >= p.maxNesting {
-		return
-	}
-	p.nesting++
-
-	i, end := 0, 0
-	for i < len(data) {
-		// copy inactive chars into the output
-		for end < len(data) && p.inlineCallback[data[end]] == nil {
-			end++
-		}
-
-		p.r.NormalText(out, data[i:end])
-
-		if end >= len(data) {
-			break
-		}
-		i = end
-
-		// call the trigger
-		handler := p.inlineCallback[data[end]]
-		if consumed := handler(p, out, data, i); consumed == 0 {
-			// no action from the callback; buffer the byte for later
-			end = i + 1
-		} else {
-			// skip past whatever the callback used
-			i += consumed
-			end = i
-		}
-	}
-
-	p.nesting--
-}
-
-// single and double emphasis parsing
-func emphasis(p *parser, out *bytes.Buffer, data []byte, offset int) int {
-	data = data[offset:]
-	c := data[0]
-	ret := 0
-
-	if len(data) > 2 && data[1] != c {
-		// whitespace cannot follow an opening emphasis;
-		// strikethrough only takes two characters '~~'
-		if c == '~' || isspace(data[1]) {
-			return 0
-		}
-		if ret = helperEmphasis(p, out, data[1:], c); ret == 0 {
-			return 0
-		}
-
-		return ret + 1
-	}
-
-	if len(data) > 3 && data[1] == c && data[2] != c {
-		if isspace(data[2]) {
-			return 0
-		}
-		if ret = helperDoubleEmphasis(p, out, data[2:], c); ret == 0 {
-			return 0
-		}
-
-		return ret + 2
-	}
-
-	if len(data) > 4 && data[1] == c && data[2] == c && data[3] != c {
-		if c == '~' || isspace(data[3]) {
-			return 0
-		}
-		if ret = helperTripleEmphasis(p, out, data, 3, c); ret == 0 {
-			return 0
-		}
-
-		return ret + 3
-	}
-
-	return 0
-}
-
-func codeSpan(p *parser, out *bytes.Buffer, data []byte, offset int) int {
-	data = data[offset:]
-
-	nb := 0
-
-	// count the number of backticks in the delimiter
-	for nb < len(data) && data[nb] == '`' {
-		nb++
-	}
-
-	// find the next delimiter
-	i, end := 0, 0
-	for end = nb; end < len(data) && i < nb; end++ {
-		if data[end] == '`' {
-			i++
-		} else {
-			i = 0
-		}
-	}
-
-	// no matching delimiter?
-	if i < nb && end >= len(data) {
-		return 0
-	}
-
-	// trim outside whitespace
-	fBegin := nb
-	for fBegin < end && data[fBegin] == ' ' {
-		fBegin++
-	}
-
-	fEnd := end - nb
-	for fEnd > fBegin && data[fEnd-1] == ' ' {
-		fEnd--
-	}
-
-	// render the code span
-	if fBegin != fEnd {
-		p.r.CodeSpan(out, data[fBegin:fEnd])
-	}
-
-	return end
-
-}
-
-// newline preceded by two spaces becomes <br>
-// newline without two spaces works when EXTENSION_HARD_LINE_BREAK is enabled
-func lineBreak(p *parser, out *bytes.Buffer, data []byte, offset int) int {
-	// remove trailing spaces from out
-	outBytes := out.Bytes()
-	end := len(outBytes)
-	eol := end
-	for eol > 0 && outBytes[eol-1] == ' ' {
-		eol--
-	}
-	out.Truncate(eol)
-
-	precededByTwoSpaces := offset >= 2 && data[offset-2] == ' ' && data[offset-1] == ' '
-	precededByBackslash := offset >= 1 && data[offset-1] == '\\' // see http://spec.commonmark.org/0.18/#example-527
-	precededByBackslash = precededByBackslash && p.flags&EXTENSION_BACKSLASH_LINE_BREAK != 0
-
-	if p.flags&EXTENSION_JOIN_LINES != 0 {
-		return 1
-	}
-
-	// should there be a hard line break here?
-	if p.flags&EXTENSION_HARD_LINE_BREAK == 0 && !precededByTwoSpaces && !precededByBackslash {
-		return 0
-	}
-
-	if precededByBackslash && eol > 0 {
-		out.Truncate(eol - 1)
-	}
-	p.r.LineBreak(out)
-	return 1
-}
-
-type linkType int
-
-const (
-	linkNormal linkType = iota
-	linkImg
-	linkDeferredFootnote
-	linkInlineFootnote
-)
-
-func isReferenceStyleLink(data []byte, pos int, t linkType) bool {
-	if t == linkDeferredFootnote {
-		return false
-	}
-	return pos < len(data)-1 && data[pos] == '[' && data[pos+1] != '^'
-}
-
-// '[': parse a link or an image or a footnote
-func link(p *parser, out *bytes.Buffer, data []byte, offset int) int {
-	// no links allowed inside regular links, footnote, and deferred footnotes
-	if p.insideLink && (offset > 0 && data[offset-1] == '[' || len(data)-1 > offset && data[offset+1] == '^') {
-		return 0
-	}
-
-	var t linkType
-	switch {
-	// special case: ![^text] == deferred footnote (that follows something with
-	// an exclamation point)
-	case p.flags&EXTENSION_FOOTNOTES != 0 && len(data)-1 > offset && data[offset+1] == '^':
-		t = linkDeferredFootnote
-	// ![alt] == image
-	case offset > 0 && data[offset-1] == '!':
-		t = linkImg
-	// ^[text] == inline footnote
-	// [^refId] == deferred footnote
-	case p.flags&EXTENSION_FOOTNOTES != 0:
-		if offset > 0 && data[offset-1] == '^' {
-			t = linkInlineFootnote
-		} else if len(data)-1 > offset && data[offset+1] == '^' {
-			t = linkDeferredFootnote
-		}
-	// [text] == regular link
-	default:
-		t = linkNormal
-	}
-
-	data = data[offset:]
-
-	var (
-		i                       = 1
-		noteId                  int
-		title, link, altContent []byte
-		textHasNl               = false
-	)
-
-	if t == linkDeferredFootnote {
-		i++
-	}
-
-	brace := 0
-
-	// look for the matching closing bracket
-	for level := 1; level > 0 && i < len(data); i++ {
-		switch {
-		case data[i] == '\n':
-			textHasNl = true
-
-		case data[i-1] == '\\':
-			continue
-
-		case data[i] == '[':
-			level++
-
-		case data[i] == ']':
-			level--
-			if level <= 0 {
-				i-- // compensate for extra i++ in for loop
-			}
-		}
-	}
-
-	if i >= len(data) {
-		return 0
-	}
-
-	txtE := i
-	i++
-
-	// skip any amount of whitespace or newline
-	// (this is much more lax than original markdown syntax)
-	for i < len(data) && isspace(data[i]) {
-		i++
-	}
-
-	switch {
-	// inline style link
-	case i < len(data) && data[i] == '(':
-		// skip initial whitespace
-		i++
-
-		for i < len(data) && isspace(data[i]) {
-			i++
-		}
-
-		linkB := i
-
-		// look for link end: ' " ), check for new opening braces and take this
-		// into account, this may lead for overshooting and probably will require
-		// some fine-tuning.
-	findlinkend:
-		for i < len(data) {
-			switch {
-			case data[i] == '\\':
-				i += 2
-
-			case data[i] == '(':
-				brace++
-				i++
-
-			case data[i] == ')':
-				if brace <= 0 {
-					break findlinkend
-				}
-				brace--
-				i++
-
-			case data[i] == '\'' || data[i] == '"':
-				break findlinkend
-
-			default:
-				i++
-			}
-		}
-
-		if i >= len(data) {
-			return 0
-		}
-		linkE := i
-
-		// look for title end if present
-		titleB, titleE := 0, 0
-		if data[i] == '\'' || data[i] == '"' {
-			i++
-			titleB = i
-
-		findtitleend:
-			for i < len(data) {
-				switch {
-				case data[i] == '\\':
-					i += 2
-
-				case data[i] == ')':
-					break findtitleend
-
-				default:
-					i++
-				}
-			}
-
-			if i >= len(data) {
-				return 0
-			}
-
-			// skip whitespace after title
-			titleE = i - 1
-			for titleE > titleB && isspace(data[titleE]) {
-				titleE--
-			}
-
-			// check for closing quote presence
-			if data[titleE] != '\'' && data[titleE] != '"' {
-				titleB, titleE = 0, 0
-				linkE = i
-			}
-		}
-
-		// remove whitespace at the end of the link
-		for linkE > linkB && isspace(data[linkE-1]) {
-			linkE--
-		}
-
-		// remove optional angle brackets around the link
-		if data[linkB] == '<' {
-			linkB++
-		}
-		if data[linkE-1] == '>' {
-			linkE--
-		}
-
-		// build escaped link and title
-		if linkE > linkB {
-			link = data[linkB:linkE]
-		}
-
-		if titleE > titleB {
-			title = data[titleB:titleE]
-		}
-
-		i++
-
-	// reference style link
-	case isReferenceStyleLink(data, i, t):
-		var id []byte
-		altContentConsidered := false
-
-		// look for the id
-		i++
-		linkB := i
-		for i < len(data) && data[i] != ']' {
-			i++
-		}
-		if i >= len(data) {
-			return 0
-		}
-		linkE := i
-
-		// find the reference
-		if linkB == linkE {
-			if textHasNl {
-				var b bytes.Buffer
-
-				for j := 1; j < txtE; j++ {
-					switch {
-					case data[j] != '\n':
-						b.WriteByte(data[j])
-					case data[j-1] != ' ':
-						b.WriteByte(' ')
-					}
-				}
-
-				id = b.Bytes()
-			} else {
-				id = data[1:txtE]
-				altContentConsidered = true
-			}
-		} else {
-			id = data[linkB:linkE]
-		}
-
-		// find the reference with matching id
-		lr, ok := p.getRef(string(id))
-		if !ok {
-			return 0
-		}
-
-		// keep link and title from reference
-		link = lr.link
-		title = lr.title
-		if altContentConsidered {
-			altContent = lr.text
-		}
-		i++
-
-	// shortcut reference style link or reference or inline footnote
-	default:
-		var id []byte
-
-		// craft the id
-		if textHasNl {
-			var b bytes.Buffer
-
-			for j := 1; j < txtE; j++ {
-				switch {
-				case data[j] != '\n':
-					b.WriteByte(data[j])
-				case data[j-1] != ' ':
-					b.WriteByte(' ')
-				}
-			}
-
-			id = b.Bytes()
-		} else {
-			if t == linkDeferredFootnote {
-				id = data[2:txtE] // get rid of the ^
-			} else {
-				id = data[1:txtE]
-			}
-		}
-
-		if t == linkInlineFootnote {
-			// create a new reference
-			noteId = len(p.notes) + 1
-
-			var fragment []byte
-			if len(id) > 0 {
-				if len(id) < 16 {
-					fragment = make([]byte, len(id))
-				} else {
-					fragment = make([]byte, 16)
-				}
-				copy(fragment, slugify(id))
-			} else {
-				fragment = append([]byte("footnote-"), []byte(strconv.Itoa(noteId))...)
-			}
-
-			ref := &reference{
-				noteId:   noteId,
-				hasBlock: false,
-				link:     fragment,
-				title:    id,
-			}
-
-			p.notes = append(p.notes, ref)
-			p.notesRecord[string(ref.link)] = struct{}{}
-
-			link = ref.link
-			title = ref.title
-		} else {
-			// find the reference with matching id
-			lr, ok := p.getRef(string(id))
-			if !ok {
-				return 0
-			}
-
-			if t == linkDeferredFootnote && !p.isFootnote(lr) {
-				lr.noteId = len(p.notes) + 1
-				p.notes = append(p.notes, lr)
-				p.notesRecord[string(lr.link)] = struct{}{}
-			}
-
-			// keep link and title from reference
-			link = lr.link
-			// if inline footnote, title == footnote contents
-			title = lr.title
-			noteId = lr.noteId
-		}
-
-		// rewind the whitespace
-		i = txtE + 1
-	}
-
-	// build content: img alt is escaped, link content is parsed
-	var content bytes.Buffer
-	if txtE > 1 {
-		if t == linkImg {
-			content.Write(data[1:txtE])
-		} else {
-			// links cannot contain other links, so turn off link parsing temporarily
-			insideLink := p.insideLink
-			p.insideLink = true
-			p.inline(&content, data[1:txtE])
-			p.insideLink = insideLink
-		}
-	}
-
-	var uLink []byte
-	if t == linkNormal || t == linkImg {
-		if len(link) > 0 {
-			var uLinkBuf bytes.Buffer
-			unescapeText(&uLinkBuf, link)
-			uLink = uLinkBuf.Bytes()
-		}
-
-		// links need something to click on and somewhere to go
-		if len(uLink) == 0 || (t == linkNormal && content.Len() == 0) {
-			return 0
-		}
-	}
-
-	// call the relevant rendering function
-	switch t {
-	case linkNormal:
-		if len(altContent) > 0 {
-			p.r.Link(out, uLink, title, altContent)
-		} else {
-			p.r.Link(out, uLink, title, content.Bytes())
-		}
-
-	case linkImg:
-		outSize := out.Len()
-		outBytes := out.Bytes()
-		if outSize > 0 && outBytes[outSize-1] == '!' {
-			out.Truncate(outSize - 1)
-		}
-
-		p.r.Image(out, uLink, title, content.Bytes())
-
-	case linkInlineFootnote:
-		outSize := out.Len()
-		outBytes := out.Bytes()
-		if outSize > 0 && outBytes[outSize-1] == '^' {
-			out.Truncate(outSize - 1)
-		}
-
-		p.r.FootnoteRef(out, link, noteId)
-
-	case linkDeferredFootnote:
-		p.r.FootnoteRef(out, link, noteId)
-
-	default:
-		return 0
-	}
-
-	return i
-}
-
-func (p *parser) inlineHTMLComment(out *bytes.Buffer, data []byte) int {
-	if len(data) < 5 {
-		return 0
-	}
-	if data[0] != '<' || data[1] != '!' || data[2] != '-' || data[3] != '-' {
-		return 0
-	}
-	i := 5
-	// scan for an end-of-comment marker, across lines if necessary
-	for i < len(data) && !(data[i-2] == '-' && data[i-1] == '-' && data[i] == '>') {
-		i++
-	}
-	// no end-of-comment marker
-	if i >= len(data) {
-		return 0
-	}
-	return i + 1
-}
-
-// '<' when tags or autolinks are allowed
-func leftAngle(p *parser, out *bytes.Buffer, data []byte, offset int) int {
-	data = data[offset:]
-	altype := LINK_TYPE_NOT_AUTOLINK
-	end := tagLength(data, &altype)
-	if size := p.inlineHTMLComment(out, data); size > 0 {
-		end = size
-	}
-	if end > 2 {
-		if altype != LINK_TYPE_NOT_AUTOLINK {
-			var uLink bytes.Buffer
-			unescapeText(&uLink, data[1:end+1-2])
-			if uLink.Len() > 0 {
-				p.r.AutoLink(out, uLink.Bytes(), altype)
-			}
-		} else {
-			p.r.RawHtmlTag(out, data[:end])
-		}
-	}
-
-	return end
-}
-
-// '\\' backslash escape
-var escapeChars = []byte("\\`*_{}[]()#+-.!:|&<>~")
-
-func escape(p *parser, out *bytes.Buffer, data []byte, offset int) int {
-	data = data[offset:]
-
-	if len(data) > 1 {
-		if bytes.IndexByte(escapeChars, data[1]) < 0 {
-			return 0
-		}
-
-		p.r.NormalText(out, data[1:2])
-	}
-
-	return 2
-}
-
-func unescapeText(ob *bytes.Buffer, src []byte) {
-	i := 0
-	for i < len(src) {
-		org := i
-		for i < len(src) && src[i] != '\\' {
-			i++
-		}
-
-		if i > org {
-			ob.Write(src[org:i])
-		}
-
-		if i+1 >= len(src) {
-			break
-		}
-
-		ob.WriteByte(src[i+1])
-		i += 2
-	}
-}
-
-// '&' escaped when it doesn't belong to an entity
-// valid entities are assumed to be anything matching &#?[A-Za-z0-9]+;
-func entity(p *parser, out *bytes.Buffer, data []byte, offset int) int {
-	data = data[offset:]
-
-	end := 1
-
-	if end < len(data) && data[end] == '#' {
-		end++
-	}
-
-	for end < len(data) && isalnum(data[end]) {
-		end++
-	}
-
-	if end < len(data) && data[end] == ';' {
-		end++ // real entity
-	} else {
-		return 0 // lone '&'
-	}
-
-	p.r.Entity(out, data[:end])
-
-	return end
-}
-
-func linkEndsWithEntity(data []byte, linkEnd int) bool {
-	entityRanges := htmlEntity.FindAllIndex(data[:linkEnd], -1)
-	return entityRanges != nil && entityRanges[len(entityRanges)-1][1] == linkEnd
-}
-
-func autoLink(p *parser, out *bytes.Buffer, data []byte, offset int) int {
-	// quick check to rule out most false hits on ':'
-	if p.insideLink || len(data) < offset+3 || data[offset+1] != '/' || data[offset+2] != '/' {
-		return 0
-	}
-
-	// Now a more expensive check to see if we're not inside an anchor element
-	anchorStart := offset
-	offsetFromAnchor := 0
-	for anchorStart > 0 && data[anchorStart] != '<' {
-		anchorStart--
-		offsetFromAnchor++
-	}
-
-	anchorStr := anchorRe.Find(data[anchorStart:])
-	if anchorStr != nil {
-		out.Write(anchorStr[offsetFromAnchor:])
-		return len(anchorStr) - offsetFromAnchor
-	}
-
-	// scan backward for a word boundary
-	rewind := 0
-	for offset-rewind > 0 && rewind <= 7 && isletter(data[offset-rewind-1]) {
-		rewind++
-	}
-	if rewind > 6 { // longest supported protocol is "mailto" which has 6 letters
-		return 0
-	}
-
-	origData := data
-	data = data[offset-rewind:]
-
-	if !isSafeLink(data) {
-		return 0
-	}
-
-	linkEnd := 0
-	for linkEnd < len(data) && !isEndOfLink(data[linkEnd]) {
-		linkEnd++
-	}
-
-	// Skip punctuation at the end of the link
-	if (data[linkEnd-1] == '.' || data[linkEnd-1] == ',') && data[linkEnd-2] != '\\' {
-		linkEnd--
-	}
-
-	// But don't skip semicolon if it's a part of escaped entity:
-	if data[linkEnd-1] == ';' && data[linkEnd-2] != '\\' && !linkEndsWithEntity(data, linkEnd) {
-		linkEnd--
-	}
-
-	// See if the link finishes with a punctuation sign that can be closed.
-	var copen byte
-	switch data[linkEnd-1] {
-	case '"':
-		copen = '"'
-	case '\'':
-		copen = '\''
-	case ')':
-		copen = '('
-	case ']':
-		copen = '['
-	case '}':
-		copen = '{'
-	default:
-		copen = 0
-	}
-
-	if copen != 0 {
-		bufEnd := offset - rewind + linkEnd - 2
-
-		openDelim := 1
-
-		/* Try to close the final punctuation sign in this same line;
-		 * if we managed to close it outside of the URL, that means that it's
-		 * not part of the URL. If it closes inside the URL, that means it
-		 * is part of the URL.
-		 *
-		 * Examples:
-		 *
-		 *      foo http://www.pokemon.com/Pikachu_(Electric) bar
-		 *              => http://www.pokemon.com/Pikachu_(Electric)
-		 *
-		 *      foo (http://www.pokemon.com/Pikachu_(Electric)) bar
-		 *              => http://www.pokemon.com/Pikachu_(Electric)
-		 *
-		 *      foo http://www.pokemon.com/Pikachu_(Electric)) bar
-		 *              => http://www.pokemon.com/Pikachu_(Electric))
-		 *
-		 *      (foo http://www.pokemon.com/Pikachu_(Electric)) bar
-		 *              => foo http://www.pokemon.com/Pikachu_(Electric)
-		 */
-
-		for bufEnd >= 0 && origData[bufEnd] != '\n' && openDelim != 0 {
-			if origData[bufEnd] == data[linkEnd-1] {
-				openDelim++
-			}
-
-			if origData[bufEnd] == copen {
-				openDelim--
-			}
-
-			bufEnd--
-		}
-
-		if openDelim == 0 {
-			linkEnd--
-		}
-	}
-
-	// we were triggered on the ':', so we need to rewind the output a bit
-	if out.Len() >= rewind {
-		out.Truncate(len(out.Bytes()) - rewind)
-	}
-
-	var uLink bytes.Buffer
-	unescapeText(&uLink, data[:linkEnd])
-
-	if uLink.Len() > 0 {
-		p.r.AutoLink(out, uLink.Bytes(), LINK_TYPE_NORMAL)
-	}
-
-	return linkEnd - rewind
-}
-
-func isEndOfLink(char byte) bool {
-	return isspace(char) || char == '<'
-}
-
-var validUris = [][]byte{[]byte("http://"), []byte("https://"), []byte("ftp://"), []byte("mailto://")}
-var validPaths = [][]byte{[]byte("/"), []byte("./"), []byte("../")}
-
-func isSafeLink(link []byte) bool {
-	for _, path := range validPaths {
-		if len(link) >= len(path) && bytes.Equal(link[:len(path)], path) {
-			if len(link) == len(path) {
-				return true
-			} else if isalnum(link[len(path)]) {
-				return true
-			}
-		}
-	}
-
-	for _, prefix := range validUris {
-		// TODO: handle unicode here
-		// case-insensitive prefix test
-		if len(link) > len(prefix) && bytes.Equal(bytes.ToLower(link[:len(prefix)]), prefix) && isalnum(link[len(prefix)]) {
-			return true
-		}
-	}
-
-	return false
-}
-
-// return the length of the given tag, or 0 is it's not valid
-func tagLength(data []byte, autolink *int) int {
-	var i, j int
-
-	// a valid tag can't be shorter than 3 chars
-	if len(data) < 3 {
-		return 0
-	}
-
-	// begins with a '<' optionally followed by '/', followed by letter or number
-	if data[0] != '<' {
-		return 0
-	}
-	if data[1] == '/' {
-		i = 2
-	} else {
-		i = 1
-	}
-
-	if !isalnum(data[i]) {
-		return 0
-	}
-
-	// scheme test
-	*autolink = LINK_TYPE_NOT_AUTOLINK
-
-	// try to find the beginning of an URI
-	for i < len(data) && (isalnum(data[i]) || data[i] == '.' || data[i] == '+' || data[i] == '-') {
-		i++
-	}
-
-	if i > 1 && i < len(data) && data[i] == '@' {
-		if j = isMailtoAutoLink(data[i:]); j != 0 {
-			*autolink = LINK_TYPE_EMAIL
-			return i + j
-		}
-	}
-
-	if i > 2 && i < len(data) && data[i] == ':' {
-		*autolink = LINK_TYPE_NORMAL
-		i++
-	}
-
-	// complete autolink test: no whitespace or ' or "
-	switch {
-	case i >= len(data):
-		*autolink = LINK_TYPE_NOT_AUTOLINK
-	case *autolink != 0:
-		j = i
-
-		for i < len(data) {
-			if data[i] == '\\' {
-				i += 2
-			} else if data[i] == '>' || data[i] == '\'' || data[i] == '"' || isspace(data[i]) {
-				break
-			} else {
-				i++
-			}
-
-		}
-
-		if i >= len(data) {
-			return 0
-		}
-		if i > j && data[i] == '>' {
-			return i + 1
-		}
-
-		// one of the forbidden chars has been found
-		*autolink = LINK_TYPE_NOT_AUTOLINK
-	}
-
-	// look for something looking like a tag end
-	for i < len(data) && data[i] != '>' {
-		i++
-	}
-	if i >= len(data) {
-		return 0
-	}
-	return i + 1
-}
-
-// look for the address part of a mail autolink and '>'
-// this is less strict than the original markdown e-mail address matching
-func isMailtoAutoLink(data []byte) int {
-	nb := 0
-
-	// address is assumed to be: [-@._a-zA-Z0-9]+ with exactly one '@'
-	for i := 0; i < len(data); i++ {
-		if isalnum(data[i]) {
-			continue
-		}
-
-		switch data[i] {
-		case '@':
-			nb++
-
-		case '-', '.', '_':
-			// Do nothing.
-
-		case '>':
-			if nb == 1 {
-				return i + 1
-			} else {
-				return 0
-			}
-		default:
-			return 0
-		}
-	}
-
-	return 0
-}
-
-// look for the next emph char, skipping other constructs
-func helperFindEmphChar(data []byte, c byte) int {
-	i := 0
-
-	for i < len(data) {
-		for i < len(data) && data[i] != c && data[i] != '`' && data[i] != '[' {
-			i++
-		}
-		if i >= len(data) {
-			return 0
-		}
-		// do not count escaped chars
-		if i != 0 && data[i-1] == '\\' {
-			i++
-			continue
-		}
-		if data[i] == c {
-			return i
-		}
-
-		if data[i] == '`' {
-			// skip a code span
-			tmpI := 0
-			i++
-			for i < len(data) && data[i] != '`' {
-				if tmpI == 0 && data[i] == c {
-					tmpI = i
-				}
-				i++
-			}
-			if i >= len(data) {
-				return tmpI
-			}
-			i++
-		} else if data[i] == '[' {
-			// skip a link
-			tmpI := 0
-			i++
-			for i < len(data) && data[i] != ']' {
-				if tmpI == 0 && data[i] == c {
-					tmpI = i
-				}
-				i++
-			}
-			i++
-			for i < len(data) && (data[i] == ' ' || data[i] == '\n') {
-				i++
-			}
-			if i >= len(data) {
-				return tmpI
-			}
-			if data[i] != '[' && data[i] != '(' { // not a link
-				if tmpI > 0 {
-					return tmpI
-				} else {
-					continue
-				}
-			}
-			cc := data[i]
-			i++
-			for i < len(data) && data[i] != cc {
-				if tmpI == 0 && data[i] == c {
-					return i
-				}
-				i++
-			}
-			if i >= len(data) {
-				return tmpI
-			}
-			i++
-		}
-	}
-	return 0
-}
-
-func helperEmphasis(p *parser, out *bytes.Buffer, data []byte, c byte) int {
-	i := 0
-
-	// skip one symbol if coming from emph3
-	if len(data) > 1 && data[0] == c && data[1] == c {
-		i = 1
-	}
-
-	for i < len(data) {
-		length := helperFindEmphChar(data[i:], c)
-		if length == 0 {
-			return 0
-		}
-		i += length
-		if i >= len(data) {
-			return 0
-		}
-
-		if i+1 < len(data) && data[i+1] == c {
-			i++
-			continue
-		}
-
-		if data[i] == c && !isspace(data[i-1]) {
-
-			if p.flags&EXTENSION_NO_INTRA_EMPHASIS != 0 {
-				if !(i+1 == len(data) || isspace(data[i+1]) || ispunct(data[i+1])) {
-					continue
-				}
-			}
-
-			var work bytes.Buffer
-			p.inline(&work, data[:i])
-			p.r.Emphasis(out, work.Bytes())
-			return i + 1
-		}
-	}
-
-	return 0
-}
-
-func helperDoubleEmphasis(p *parser, out *bytes.Buffer, data []byte, c byte) int {
-	i := 0
-
-	for i < len(data) {
-		length := helperFindEmphChar(data[i:], c)
-		if length == 0 {
-			return 0
-		}
-		i += length
-
-		if i+1 < len(data) && data[i] == c && data[i+1] == c && i > 0 && !isspace(data[i-1]) {
-			var work bytes.Buffer
-			p.inline(&work, data[:i])
-
-			if work.Len() > 0 {
-				// pick the right renderer
-				if c == '~' {
-					p.r.StrikeThrough(out, work.Bytes())
-				} else {
-					p.r.DoubleEmphasis(out, work.Bytes())
-				}
-			}
-			return i + 2
-		}
-		i++
-	}
-	return 0
-}
-
-func helperTripleEmphasis(p *parser, out *bytes.Buffer, data []byte, offset int, c byte) int {
-	i := 0
-	origData := data
-	data = data[offset:]
-
-	for i < len(data) {
-		length := helperFindEmphChar(data[i:], c)
-		if length == 0 {
-			return 0
-		}
-		i += length
-
-		// skip whitespace preceded symbols
-		if data[i] != c || isspace(data[i-1]) {
-			continue
-		}
-
-		switch {
-		case i+2 < len(data) && data[i+1] == c && data[i+2] == c:
-			// triple symbol found
-			var work bytes.Buffer
-
-			p.inline(&work, data[:i])
-			if work.Len() > 0 {
-				p.r.TripleEmphasis(out, work.Bytes())
-			}
-			return i + 3
-		case (i+1 < len(data) && data[i+1] == c):
-			// double symbol found, hand over to emph1
-			length = helperEmphasis(p, out, origData[offset-2:], c)
-			if length == 0 {
-				return 0
-			} else {
-				return length - 2
-			}
-		default:
-			// single symbol found, hand over to emph2
-			length = helperDoubleEmphasis(p, out, origData[offset-1:], c)
-			if length == 0 {
-				return 0
-			} else {
-				return length - 1
-			}
-		}
-	}
-	return 0
-}

vendor/github.com/russross/blackfriday/latex.go

@@ -1,332 +0,0 @@
-//
-// 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")
-}

vendor/github.com/russross/blackfriday/markdown.go

@@ -1,931 +0,0 @@
-//
-// 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
-//
-//
-
-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
-	EXTENSION_JOIN_LINES                             // delete newline and join lines
-
-	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
-	notesRecord map[string]struct{}
-}
-
-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
-}
-
-func (p *parser) isFootnote(ref *reference) bool {
-	_, ok := p.notesRecord[string(ref.link)]
-	return ok
-}
-
-//
-//
-// 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)
-		p.notesRecord = make(map[string]struct{})
-	}
-
-	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]
-}

vendor/github.com/russross/blackfriday/smartypants.go

@@ -1,430 +0,0 @@
-//
-// 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, addNBSP bool) bool {
-	// edge of the buffer is likely to be a tag that we don't get to see,
-	// so we treat it like text sometimes
-
-	// 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
-	}
-
-	// Note that with the limited lookahead, this non-breaking
-	// space will also be appended to single double quotes.
-	if addNBSP && !*isOpen {
-		out.WriteString("&nbsp;")
-	}
-
-	out.WriteByte('&')
-	if *isOpen {
-		out.WriteByte('l')
-	} else {
-		out.WriteByte('r')
-	}
-	out.WriteByte(quote)
-	out.WriteString("quo;")
-
-	if addNBSP && *isOpen {
-		out.WriteString("&nbsp;")
-	}
-
-	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, false) {
-				return 1
-			}
-		}
-
-		if (t1 == 's' || t1 == 't' || t1 == 'm' || t1 == 'd') && (len(text) < 3 || wordBoundary(text[2])) {
-			out.WriteString("&rsquo;")
-			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("&rsquo;")
-				return 0
-			}
-		}
-	}
-
-	nextChar := byte(0)
-	if len(text) > 1 {
-		nextChar = text[1]
-	}
-	if smartQuoteHelper(out, previousChar, nextChar, 's', &smrt.inSingleQuote, false) {
-		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("&copy;")
-			return 2
-		}
-
-		if t1 == 'r' && t2 == ')' {
-			out.WriteString("&reg;")
-			return 2
-		}
-
-		if len(text) >= 4 && t1 == 't' && t2 == 'm' && text[3] == ')' {
-			out.WriteString("&trade;")
-			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("&mdash;")
-			return 1
-		}
-
-		if wordBoundary(previousChar) && wordBoundary(text[1]) {
-			out.WriteString("&ndash;")
-			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("&mdash;")
-		return 2
-	}
-	if len(text) >= 2 && text[1] == '-' {
-		out.WriteString("&ndash;")
-		return 1
-	}
-
-	out.WriteByte(text[0])
-	return 0
-}
-
-func smartAmpVariant(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte, quote byte, addNBSP bool) int {
-	if bytes.HasPrefix(text, []byte("&quot;")) {
-		nextChar := byte(0)
-		if len(text) >= 7 {
-			nextChar = text[6]
-		}
-		if smartQuoteHelper(out, previousChar, nextChar, quote, &smrt.inDoubleQuote, addNBSP) {
-			return 5
-		}
-	}
-
-	if bytes.HasPrefix(text, []byte("&#0;")) {
-		return 3
-	}
-
-	out.WriteByte('&')
-	return 0
-}
-
-func smartAmp(angledQuotes, addNBSP bool) func(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
-	var quote byte = 'd'
-	if angledQuotes {
-		quote = 'a'
-	}
-
-	return func(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
-		return smartAmpVariant(out, smrt, previousChar, text, quote, addNBSP)
-	}
-}
-
-func smartPeriod(out *bytes.Buffer, smrt *smartypantsData, previousChar byte, text []byte) int {
-	if len(text) >= 3 && text[1] == '.' && text[2] == '.' {
-		out.WriteString("&hellip;")
-		return 2
-	}
-
-	if len(text) >= 5 && text[1] == ' ' && text[2] == '.' && text[3] == ' ' && text[4] == '.' {
-		out.WriteString("&hellip;")
-		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, false) {
-			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>&frasl;<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("&frac12;")
-				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("&frac14;")
-				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("&frac34;")
-				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, false) {
-		out.WriteString("&quot;")
-	}
-
-	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
-
-var (
-	smartAmpAngled      = smartAmp(true, false)
-	smartAmpAngledNBSP  = smartAmp(true, true)
-	smartAmpRegular     = smartAmp(false, false)
-	smartAmpRegularNBSP = smartAmp(false, true)
-)
-
-func smartypants(flags int) *smartypantsRenderer {
-	r := new(smartypantsRenderer)
-	addNBSP := flags&HTML_SMARTYPANTS_QUOTES_NBSP != 0
-	if flags&HTML_SMARTYPANTS_ANGLED_QUOTES == 0 {
-		r['"'] = smartDoubleQuote
-		if !addNBSP {
-			r['&'] = smartAmpRegular
-		} else {
-			r['&'] = smartAmpRegularNBSP
-		}
-	} else {
-		r['"'] = smartAngledDoubleQuote
-		if !addNBSP {
-			r['&'] = smartAmpAngled
-		} else {
-			r['&'] = smartAmpAngledNBSP
-		}
-	}
-	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
-}