##// END OF EJS Templates
svn-support: Use utf-8 to encode mod_dav_svn configuration before writing to disk....
svn-support: Use utf-8 to encode mod_dav_svn configuration before writing to disk. Repository or group names may contain non ASCII characters. Therfore we have to encode the configuration before writing it to the file.

File last commit:

r346:1a48416d default
r830:7ca2d1db default
Show More
markdown.js
803 lines | 24.6 KiB | application/javascript | JavascriptLexer
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"), require("../xml/xml"), require("../meta"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror", "../xml/xml", "../meta"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
var htmlFound = CodeMirror.modes.hasOwnProperty("xml");
var htmlMode = CodeMirror.getMode(cmCfg, htmlFound ? {name: "xml", htmlMode: true} : "text/plain");
function getMode(name) {
if (CodeMirror.findModeByName) {
var found = CodeMirror.findModeByName(name);
if (found) name = found.mime || found.mimes[0];
}
var mode = CodeMirror.getMode(cmCfg, name);
return mode.name == "null" ? null : mode;
}
// Should characters that affect highlighting be highlighted separate?
// Does not include characters that will be output (such as `1.` and `-` for lists)
if (modeCfg.highlightFormatting === undefined)
modeCfg.highlightFormatting = false;
// Maximum number of nested blockquotes. Set to 0 for infinite nesting.
// Excess `>` will emit `error` token.
if (modeCfg.maxBlockquoteDepth === undefined)
modeCfg.maxBlockquoteDepth = 0;
// Should underscores in words open/close em/strong?
if (modeCfg.underscoresBreakWords === undefined)
modeCfg.underscoresBreakWords = true;
// Use `fencedCodeBlocks` to configure fenced code blocks. false to
// disable, string to specify a precise regexp that the fence should
// match, and true to allow three or more backticks or tildes (as
// per CommonMark).
// Turn on task lists? ("- [ ] " and "- [x] ")
if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;
// Turn on strikethrough syntax
if (modeCfg.strikethrough === undefined)
modeCfg.strikethrough = false;
// Allow token types to be overridden by user-provided token types.
if (modeCfg.tokenTypeOverrides === undefined)
modeCfg.tokenTypeOverrides = {};
var codeDepth = 0;
var tokenTypes = {
header: "header",
code: "comment",
quote: "quote",
list1: "variable-2",
list2: "variable-3",
list3: "keyword",
hr: "hr",
image: "tag",
formatting: "formatting",
linkInline: "link",
linkEmail: "link",
linkText: "link",
linkHref: "string",
em: "em",
strong: "strong",
strikethrough: "strikethrough"
};
for (var tokenType in tokenTypes) {
if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) {
tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType];
}
}
var hrRE = /^([*\-_])(?:\s*\1){2,}\s*$/
, ulRE = /^[*\-+]\s+/
, olRE = /^[0-9]+([.)])\s+/
, taskListRE = /^\[(x| )\](?=\s)/ // Must follow ulRE or olRE
, atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/
, setextHeaderRE = /^ *(?:\={1,}|-{1,})\s*$/
, textRE = /^[^#!\[\]*_\\<>` "'(~]+/
, fencedCodeRE = new RegExp("^(" + (modeCfg.fencedCodeBlocks === true ? "~~~+|```+" : modeCfg.fencedCodeBlocks) +
")[ \\t]*([\\w+#]*)");
function switchInline(stream, state, f) {
state.f = state.inline = f;
return f(stream, state);
}
function switchBlock(stream, state, f) {
state.f = state.block = f;
return f(stream, state);
}
function lineIsEmpty(line) {
return !line || !/\S/.test(line.string)
}
// Blocks
function blankLine(state) {
// Reset linkTitle state
state.linkTitle = false;
// Reset EM state
state.em = false;
// Reset STRONG state
state.strong = false;
// Reset strikethrough state
state.strikethrough = false;
// Reset state.quote
state.quote = 0;
// Reset state.indentedCode
state.indentedCode = false;
if (!htmlFound && state.f == htmlBlock) {
state.f = inlineNormal;
state.block = blockNormal;
}
// Reset state.trailingSpace
state.trailingSpace = 0;
state.trailingSpaceNewLine = false;
// Mark this line as blank
state.prevLine = state.thisLine
state.thisLine = null
return null;
}
function blockNormal(stream, state) {
var sol = stream.sol();
var prevLineIsList = state.list !== false,
prevLineIsIndentedCode = state.indentedCode;
state.indentedCode = false;
if (prevLineIsList) {
if (state.indentationDiff >= 0) { // Continued list
if (state.indentationDiff < 4) { // Only adjust indentation if *not* a code block
state.indentation -= state.indentationDiff;
}
state.list = null;
} else if (state.indentation > 0) {
state.list = null;
state.listDepth = Math.floor(state.indentation / 4);
} else { // No longer a list
state.list = false;
state.listDepth = 0;
}
}
var match = null;
if (state.indentationDiff >= 4) {
stream.skipToEnd();
if (prevLineIsIndentedCode || lineIsEmpty(state.prevLine)) {
state.indentation -= 4;
state.indentedCode = true;
return tokenTypes.code;
} else {
return null;
}
} else if (stream.eatSpace()) {
return null;
} else if ((match = stream.match(atxHeaderRE)) && match[1].length <= 6) {
state.header = match[1].length;
if (modeCfg.highlightFormatting) state.formatting = "header";
state.f = state.inline;
return getType(state);
} else if (!lineIsEmpty(state.prevLine) && !state.quote && !prevLineIsList &&
!prevLineIsIndentedCode && (match = stream.match(setextHeaderRE))) {
state.header = match[0].charAt(0) == '=' ? 1 : 2;
if (modeCfg.highlightFormatting) state.formatting = "header";
state.f = state.inline;
return getType(state);
} else if (stream.eat('>')) {
state.quote = sol ? 1 : state.quote + 1;
if (modeCfg.highlightFormatting) state.formatting = "quote";
stream.eatSpace();
return getType(state);
} else if (stream.peek() === '[') {
return switchInline(stream, state, footnoteLink);
} else if (stream.match(hrRE, true)) {
state.hr = true;
return tokenTypes.hr;
} else if ((lineIsEmpty(state.prevLine) || prevLineIsList) && (stream.match(ulRE, false) || stream.match(olRE, false))) {
var listType = null;
if (stream.match(ulRE, true)) {
listType = 'ul';
} else {
stream.match(olRE, true);
listType = 'ol';
}
state.indentation = stream.column() + stream.current().length;
state.list = true;
state.listDepth++;
if (modeCfg.taskLists && stream.match(taskListRE, false)) {
state.taskList = true;
}
state.f = state.inline;
if (modeCfg.highlightFormatting) state.formatting = ["list", "list-" + listType];
return getType(state);
} else if (modeCfg.fencedCodeBlocks && (match = stream.match(fencedCodeRE, true))) {
state.fencedChars = match[1]
// try switching mode
state.localMode = getMode(match[2]);
if (state.localMode) state.localState = state.localMode.startState();
state.f = state.block = local;
if (modeCfg.highlightFormatting) state.formatting = "code-block";
state.code = true;
return getType(state);
}
return switchInline(stream, state, state.inline);
}
function htmlBlock(stream, state) {
var style = htmlMode.token(stream, state.htmlState);
if ((htmlFound && state.htmlState.tagStart === null &&
(!state.htmlState.context && state.htmlState.tokenize.isInText)) ||
(state.md_inside && stream.current().indexOf(">") > -1)) {
state.f = inlineNormal;
state.block = blockNormal;
state.htmlState = null;
}
return style;
}
function local(stream, state) {
if (state.fencedChars && stream.match(state.fencedChars, false)) {
state.localMode = state.localState = null;
state.f = state.block = leavingLocal;
return null;
} else if (state.localMode) {
return state.localMode.token(stream, state.localState);
} else {
stream.skipToEnd();
return tokenTypes.code;
}
}
function leavingLocal(stream, state) {
stream.match(state.fencedChars);
state.block = blockNormal;
state.f = inlineNormal;
state.fencedChars = null;
if (modeCfg.highlightFormatting) state.formatting = "code-block";
state.code = true;
var returnType = getType(state);
state.code = false;
return returnType;
}
// Inline
function getType(state) {
var styles = [];
if (state.formatting) {
styles.push(tokenTypes.formatting);
if (typeof state.formatting === "string") state.formatting = [state.formatting];
for (var i = 0; i < state.formatting.length; i++) {
styles.push(tokenTypes.formatting + "-" + state.formatting[i]);
if (state.formatting[i] === "header") {
styles.push(tokenTypes.formatting + "-" + state.formatting[i] + "-" + state.header);
}
// Add `formatting-quote` and `formatting-quote-#` for blockquotes
// Add `error` instead if the maximum blockquote nesting depth is passed
if (state.formatting[i] === "quote") {
if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
styles.push(tokenTypes.formatting + "-" + state.formatting[i] + "-" + state.quote);
} else {
styles.push("error");
}
}
}
}
if (state.taskOpen) {
styles.push("meta");
return styles.length ? styles.join(' ') : null;
}
if (state.taskClosed) {
styles.push("property");
return styles.length ? styles.join(' ') : null;
}
if (state.linkHref) {
styles.push(tokenTypes.linkHref, "url");
} else { // Only apply inline styles to non-url text
if (state.strong) { styles.push(tokenTypes.strong); }
if (state.em) { styles.push(tokenTypes.em); }
if (state.strikethrough) { styles.push(tokenTypes.strikethrough); }
if (state.linkText) { styles.push(tokenTypes.linkText); }
if (state.code) { styles.push(tokenTypes.code); }
}
if (state.header) { styles.push(tokenTypes.header, tokenTypes.header + "-" + state.header); }
if (state.quote) {
styles.push(tokenTypes.quote);
// Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth
if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
styles.push(tokenTypes.quote + "-" + state.quote);
} else {
styles.push(tokenTypes.quote + "-" + modeCfg.maxBlockquoteDepth);
}
}
if (state.list !== false) {
var listMod = (state.listDepth - 1) % 3;
if (!listMod) {
styles.push(tokenTypes.list1);
} else if (listMod === 1) {
styles.push(tokenTypes.list2);
} else {
styles.push(tokenTypes.list3);
}
}
if (state.trailingSpaceNewLine) {
styles.push("trailing-space-new-line");
} else if (state.trailingSpace) {
styles.push("trailing-space-" + (state.trailingSpace % 2 ? "a" : "b"));
}
return styles.length ? styles.join(' ') : null;
}
function handleText(stream, state) {
if (stream.match(textRE, true)) {
return getType(state);
}
return undefined;
}
function inlineNormal(stream, state) {
var style = state.text(stream, state);
if (typeof style !== 'undefined')
return style;
if (state.list) { // List marker (*, +, -, 1., etc)
state.list = null;
return getType(state);
}
if (state.taskList) {
var taskOpen = stream.match(taskListRE, true)[1] !== "x";
if (taskOpen) state.taskOpen = true;
else state.taskClosed = true;
if (modeCfg.highlightFormatting) state.formatting = "task";
state.taskList = false;
return getType(state);
}
state.taskOpen = false;
state.taskClosed = false;
if (state.header && stream.match(/^#+$/, true)) {
if (modeCfg.highlightFormatting) state.formatting = "header";
return getType(state);
}
// Get sol() value now, before character is consumed
var sol = stream.sol();
var ch = stream.next();
if (ch === '\\') {
stream.next();
if (modeCfg.highlightFormatting) {
var type = getType(state);
var formattingEscape = tokenTypes.formatting + "-escape";
return type ? type + " " + formattingEscape : formattingEscape;
}
}
// Matches link titles present on next line
if (state.linkTitle) {
state.linkTitle = false;
var matchCh = ch;
if (ch === '(') {
matchCh = ')';
}
matchCh = (matchCh+'').replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
var regex = '^\\s*(?:[^' + matchCh + '\\\\]+|\\\\\\\\|\\\\.)' + matchCh;
if (stream.match(new RegExp(regex), true)) {
return tokenTypes.linkHref;
}
}
// If this block is changed, it may need to be updated in GFM mode
if (ch === '`') {
var previousFormatting = state.formatting;
if (modeCfg.highlightFormatting) state.formatting = "code";
var t = getType(state);
var before = stream.pos;
stream.eatWhile('`');
var difference = 1 + stream.pos - before;
if (!state.code) {
codeDepth = difference;
state.code = true;
return getType(state);
} else {
if (difference === codeDepth) { // Must be exact
state.code = false;
return t;
}
state.formatting = previousFormatting;
return getType(state);
}
} else if (state.code) {
return getType(state);
}
if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) {
stream.match(/\[[^\]]*\]/);
state.inline = state.f = linkHref;
return tokenTypes.image;
}
if (ch === '[' && stream.match(/.*\](\(.*\)| ?\[.*\])/, false)) {
state.linkText = true;
if (modeCfg.highlightFormatting) state.formatting = "link";
return getType(state);
}
if (ch === ']' && state.linkText && stream.match(/\(.*\)| ?\[.*\]/, false)) {
if (modeCfg.highlightFormatting) state.formatting = "link";
var type = getType(state);
state.linkText = false;
state.inline = state.f = linkHref;
return type;
}
if (ch === '<' && stream.match(/^(https?|ftps?):\/\/(?:[^\\>]|\\.)+>/, false)) {
state.f = state.inline = linkInline;
if (modeCfg.highlightFormatting) state.formatting = "link";
var type = getType(state);
if (type){
type += " ";
} else {
type = "";
}
return type + tokenTypes.linkInline;
}
if (ch === '<' && stream.match(/^[^> \\]+@(?:[^\\>]|\\.)+>/, false)) {
state.f = state.inline = linkInline;
if (modeCfg.highlightFormatting) state.formatting = "link";
var type = getType(state);
if (type){
type += " ";
} else {
type = "";
}
return type + tokenTypes.linkEmail;
}
if (ch === '<' && stream.match(/^(!--|\w)/, false)) {
var end = stream.string.indexOf(">", stream.pos);
if (end != -1) {
var atts = stream.string.substring(stream.start, end);
if (/markdown\s*=\s*('|"){0,1}1('|"){0,1}/.test(atts)) state.md_inside = true;
}
stream.backUp(1);
state.htmlState = CodeMirror.startState(htmlMode);
return switchBlock(stream, state, htmlBlock);
}
if (ch === '<' && stream.match(/^\/\w*?>/)) {
state.md_inside = false;
return "tag";
}
var ignoreUnderscore = false;
if (!modeCfg.underscoresBreakWords) {
if (ch === '_' && stream.peek() !== '_' && stream.match(/(\w)/, false)) {
var prevPos = stream.pos - 2;
if (prevPos >= 0) {
var prevCh = stream.string.charAt(prevPos);
if (prevCh !== '_' && prevCh.match(/(\w)/, false)) {
ignoreUnderscore = true;
}
}
}
}
if (ch === '*' || (ch === '_' && !ignoreUnderscore)) {
if (sol && stream.peek() === ' ') {
// Do nothing, surrounded by newline and space
} else if (state.strong === ch && stream.eat(ch)) { // Remove STRONG
if (modeCfg.highlightFormatting) state.formatting = "strong";
var t = getType(state);
state.strong = false;
return t;
} else if (!state.strong && stream.eat(ch)) { // Add STRONG
state.strong = ch;
if (modeCfg.highlightFormatting) state.formatting = "strong";
return getType(state);
} else if (state.em === ch) { // Remove EM
if (modeCfg.highlightFormatting) state.formatting = "em";
var t = getType(state);
state.em = false;
return t;
} else if (!state.em) { // Add EM
state.em = ch;
if (modeCfg.highlightFormatting) state.formatting = "em";
return getType(state);
}
} else if (ch === ' ') {
if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces
if (stream.peek() === ' ') { // Surrounded by spaces, ignore
return getType(state);
} else { // Not surrounded by spaces, back up pointer
stream.backUp(1);
}
}
}
if (modeCfg.strikethrough) {
if (ch === '~' && stream.eatWhile(ch)) {
if (state.strikethrough) {// Remove strikethrough
if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
var t = getType(state);
state.strikethrough = false;
return t;
} else if (stream.match(/^[^\s]/, false)) {// Add strikethrough
state.strikethrough = true;
if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
return getType(state);
}
} else if (ch === ' ') {
if (stream.match(/^~~/, true)) { // Probably surrounded by space
if (stream.peek() === ' ') { // Surrounded by spaces, ignore
return getType(state);
} else { // Not surrounded by spaces, back up pointer
stream.backUp(2);
}
}
}
}
if (ch === ' ') {
if (stream.match(/ +$/, false)) {
state.trailingSpace++;
} else if (state.trailingSpace) {
state.trailingSpaceNewLine = true;
}
}
return getType(state);
}
function linkInline(stream, state) {
var ch = stream.next();
if (ch === ">") {
state.f = state.inline = inlineNormal;
if (modeCfg.highlightFormatting) state.formatting = "link";
var type = getType(state);
if (type){
type += " ";
} else {
type = "";
}
return type + tokenTypes.linkInline;
}
stream.match(/^[^>]+/, true);
return tokenTypes.linkInline;
}
function linkHref(stream, state) {
// Check if space, and return NULL if so (to avoid marking the space)
if(stream.eatSpace()){
return null;
}
var ch = stream.next();
if (ch === '(' || ch === '[') {
state.f = state.inline = getLinkHrefInside(ch === "(" ? ")" : "]");
if (modeCfg.highlightFormatting) state.formatting = "link-string";
state.linkHref = true;
return getType(state);
}
return 'error';
}
function getLinkHrefInside(endChar) {
return function(stream, state) {
var ch = stream.next();
if (ch === endChar) {
state.f = state.inline = inlineNormal;
if (modeCfg.highlightFormatting) state.formatting = "link-string";
var returnState = getType(state);
state.linkHref = false;
return returnState;
}
if (stream.match(inlineRE(endChar), true)) {
stream.backUp(1);
}
state.linkHref = true;
return getType(state);
};
}
function footnoteLink(stream, state) {
if (stream.match(/^([^\]\\]|\\.)*\]:/, false)) {
state.f = footnoteLinkInside;
stream.next(); // Consume [
if (modeCfg.highlightFormatting) state.formatting = "link";
state.linkText = true;
return getType(state);
}
return switchInline(stream, state, inlineNormal);
}
function footnoteLinkInside(stream, state) {
if (stream.match(/^\]:/, true)) {
state.f = state.inline = footnoteUrl;
if (modeCfg.highlightFormatting) state.formatting = "link";
var returnType = getType(state);
state.linkText = false;
return returnType;
}
stream.match(/^([^\]\\]|\\.)+/, true);
return tokenTypes.linkText;
}
function footnoteUrl(stream, state) {
// Check if space, and return NULL if so (to avoid marking the space)
if(stream.eatSpace()){
return null;
}
// Match URL
stream.match(/^[^\s]+/, true);
// Check for link title
if (stream.peek() === undefined) { // End of line, set flag to check next line
state.linkTitle = true;
} else { // More content on line, check if link title
stream.match(/^(?:\s+(?:"(?:[^"\\]|\\\\|\\.)+"|'(?:[^'\\]|\\\\|\\.)+'|\((?:[^)\\]|\\\\|\\.)+\)))?/, true);
}
state.f = state.inline = inlineNormal;
return tokenTypes.linkHref + " url";
}
var savedInlineRE = [];
function inlineRE(endChar) {
if (!savedInlineRE[endChar]) {
// Escape endChar for RegExp (taken from http://stackoverflow.com/a/494122/526741)
endChar = (endChar+'').replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
// Match any non-endChar, escaped character, as well as the closing
// endChar.
savedInlineRE[endChar] = new RegExp('^(?:[^\\\\]|\\\\.)*?(' + endChar + ')');
}
return savedInlineRE[endChar];
}
var mode = {
startState: function() {
return {
f: blockNormal,
prevLine: null,
thisLine: null,
block: blockNormal,
htmlState: null,
indentation: 0,
inline: inlineNormal,
text: handleText,
formatting: false,
linkText: false,
linkHref: false,
linkTitle: false,
em: false,
strong: false,
header: 0,
hr: false,
taskList: false,
list: false,
listDepth: 0,
quote: 0,
trailingSpace: 0,
trailingSpaceNewLine: false,
strikethrough: false,
fencedChars: null
};
},
copyState: function(s) {
return {
f: s.f,
prevLine: s.prevLine,
thisLine: s.thisLine,
block: s.block,
htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),
indentation: s.indentation,
localMode: s.localMode,
localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,
inline: s.inline,
text: s.text,
formatting: false,
linkTitle: s.linkTitle,
code: s.code,
em: s.em,
strong: s.strong,
strikethrough: s.strikethrough,
header: s.header,
hr: s.hr,
taskList: s.taskList,
list: s.list,
listDepth: s.listDepth,
quote: s.quote,
indentedCode: s.indentedCode,
trailingSpace: s.trailingSpace,
trailingSpaceNewLine: s.trailingSpaceNewLine,
md_inside: s.md_inside,
fencedChars: s.fencedChars
};
},
token: function(stream, state) {
// Reset state.formatting
state.formatting = false;
if (stream != state.thisLine) {
var forceBlankLine = state.header || state.hr;
// Reset state.header and state.hr
state.header = 0;
state.hr = false;
if (stream.match(/^\s*$/, true) || forceBlankLine) {
blankLine(state);
if (!forceBlankLine) return null
state.prevLine = null
}
state.prevLine = state.thisLine
state.thisLine = stream
// Reset state.taskList
state.taskList = false;
// Reset state.trailingSpace
state.trailingSpace = 0;
state.trailingSpaceNewLine = false;
state.f = state.block;
var indentation = stream.match(/^\s*/, true)[0].replace(/\t/g, ' ').length;
var difference = Math.floor((indentation - state.indentation) / 4) * 4;
if (difference > 4) difference = 4;
var adjustedIndentation = state.indentation + difference;
state.indentationDiff = adjustedIndentation - state.indentation;
state.indentation = adjustedIndentation;
if (indentation > 0) return null;
}
return state.f(stream, state);
},
innerMode: function(state) {
if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};
if (state.localState) return {state: state.localState, mode: state.localMode};
return {state: state, mode: mode};
},
blankLine: blankLine,
getType: getType,
fold: "markdown"
};
return mode;
}, "xml");
CodeMirror.defineMIME("text/x-markdown", "markdown");
});