--- /dev/null
+CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
+
+ var htmlFound = CodeMirror.modes.hasOwnProperty("xml");
+ var htmlMode = CodeMirror.getMode(cmCfg, htmlFound ? {name: "xml", htmlMode: true} : "text/plain");
+ var aliases = {
+ html: "htmlmixed",
+ js: "javascript",
+ json: "application/json",
+ c: "text/x-csrc",
+ "c++": "text/x-c++src",
+ java: "text/x-java",
+ csharp: "text/x-csharp",
+ "c#": "text/x-csharp",
+ scala: "text/x-scala"
+ };
+
+ var getMode = (function () {
+ var i, modes = {}, mimes = {}, mime;
+
+ var list = [];
+ for (var m in CodeMirror.modes)
+ if (CodeMirror.modes.propertyIsEnumerable(m)) list.push(m);
+ for (i = 0; i < list.length; i++) {
+ modes[list[i]] = list[i];
+ }
+ var mimesList = [];
+ for (var m in CodeMirror.mimeModes)
+ if (CodeMirror.mimeModes.propertyIsEnumerable(m))
+ mimesList.push({mime: m, mode: CodeMirror.mimeModes[m]});
+ for (i = 0; i < mimesList.length; i++) {
+ mime = mimesList[i].mime;
+ mimes[mime] = mimesList[i].mime;
+ }
+
+ for (var a in aliases) {
+ if (aliases[a] in modes || aliases[a] in mimes)
+ modes[a] = aliases[a];
+ }
+
+ return function (lang) {
+ return modes[lang] ? CodeMirror.getMode(cmCfg, modes[lang]) : null;
+ };
+ }());
+
+ // Should underscores in words open/close em/strong?
+ if (modeCfg.underscoresBreakWords === undefined)
+ modeCfg.underscoresBreakWords = true;
+
+ // Turn on fenced code blocks? ("```" to start/end)
+ if (modeCfg.fencedCodeBlocks === undefined) modeCfg.fencedCodeBlocks = false;
+
+ // Turn on task lists? ("- [ ] " and "- [x] ")
+ if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;
+
+ var codeDepth = 0;
+
+ var header = 'header'
+ , code = 'comment'
+ , quote1 = 'atom'
+ , quote2 = 'number'
+ , list1 = 'variable-2'
+ , list2 = 'variable-3'
+ , list3 = 'keyword'
+ , hr = 'hr'
+ , image = 'tag'
+ , linkinline = 'link'
+ , linkemail = 'link'
+ , linktext = 'link'
+ , linkhref = 'string'
+ , em = 'em'
+ , strong = 'strong';
+
+ var hrRE = /^([*\-=_])(?:\s*\1){2,}\s*$/
+ , ulRE = /^[*\-+]\s+/
+ , olRE = /^[0-9]+\.\s+/
+ , taskListRE = /^\[(x| )\](?=\s)/ // Must follow ulRE or olRE
+ , headerRE = /^(?:\={1,}|-{1,})$/
+ , textRE = /^[^!\[\]*_\\<>` "'(]+/;
+
+ 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);
+ }
+
+
+ // Blocks
+
+ function blankLine(state) {
+ // Reset linkTitle state
+ state.linkTitle = false;
+ // Reset EM state
+ state.em = false;
+ // Reset STRONG state
+ state.strong = false;
+ // Reset state.quote
+ state.quote = 0;
+ 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.thisLineHasContent = false;
+ return null;
+ }
+
+ function blockNormal(stream, state) {
+
+ var prevLineIsList = (state.list !== false);
+ if (state.list !== false && 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.list !== false && state.indentation > 0) {
+ state.list = null;
+ state.listDepth = Math.floor(state.indentation / 4);
+ } else if (state.list !== false) { // No longer a list
+ state.list = false;
+ state.listDepth = 0;
+ }
+
+ if (state.indentationDiff >= 4) {
+ state.indentation -= 4;
+ stream.skipToEnd();
+ return code;
+ } else if (stream.eatSpace()) {
+ return null;
+ } else if (stream.peek() === '#' || (state.prevLineHasContent && stream.match(headerRE)) ) {
+ state.header = true;
+ } else if (stream.eat('>')) {
+ state.indentation++;
+ state.quote = 1;
+ stream.eatSpace();
+ while (stream.eat('>')) {
+ stream.eatSpace();
+ state.quote++;
+ }
+ } else if (stream.peek() === '[') {
+ return switchInline(stream, state, footnoteLink);
+ } else if (stream.match(hrRE, true)) {
+ return hr;
+ } else if ((!state.prevLineHasContent || prevLineIsList) && (stream.match(ulRE, true) || stream.match(olRE, true))) {
+ state.indentation += 4;
+ state.list = true;
+ state.listDepth++;
+ if (modeCfg.taskLists && stream.match(taskListRE, false)) {
+ state.taskList = true;
+ }
+ } else if (modeCfg.fencedCodeBlocks && stream.match(/^```([\w+#]*)/, true)) {
+ // try switching mode
+ state.localMode = getMode(RegExp.$1);
+ if (state.localMode) state.localState = state.localMode.startState();
+ switchBlock(stream, state, local);
+ return code;
+ }
+
+ return switchInline(stream, state, state.inline);
+ }
+
+ function htmlBlock(stream, state) {
+ var style = htmlMode.token(stream, state.htmlState);
+ if (htmlFound && style === 'tag' && state.htmlState.type !== 'openTag' && !state.htmlState.context) {
+ state.f = inlineNormal;
+ state.block = blockNormal;
+ }
+ if (state.md_inside && stream.current().indexOf(">")!=-1) {
+ state.f = inlineNormal;
+ state.block = blockNormal;
+ state.htmlState.context = undefined;
+ }
+ return style;
+ }
+
+ function local(stream, state) {
+ if (stream.sol() && stream.match(/^```/, true)) {
+ state.localMode = state.localState = null;
+ state.f = inlineNormal;
+ state.block = blockNormal;
+ return code;
+ } else if (state.localMode) {
+ return state.localMode.token(stream, state.localState);
+ } else {
+ stream.skipToEnd();
+ return code;
+ }
+ }
+
+ // Inline
+ function getType(state) {
+ var styles = [];
+
+ if (state.taskOpen) { return "meta"; }
+ if (state.taskClosed) { return "property"; }
+
+ if (state.strong) { styles.push(strong); }
+ if (state.em) { styles.push(em); }
+
+ if (state.linkText) { styles.push(linktext); }
+
+ if (state.code) { styles.push(code); }
+
+ if (state.header) { styles.push(header); }
+ if (state.quote) { styles.push(state.quote % 2 ? quote1 : quote2); }
+ if (state.list !== false) {
+ var listMod = (state.listDepth - 1) % 3;
+ if (!listMod) {
+ styles.push(list1);
+ } else if (listMod === 1) {
+ styles.push(list2);
+ } else {
+ styles.push(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;
+ state.taskList = false;
+ return getType(state);
+ }
+
+ state.taskOpen = false;
+ state.taskClosed = false;
+
+ var ch = stream.next();
+
+ if (ch === '\\') {
+ stream.next();
+ return getType(state);
+ }
+
+ // 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 linkhref;
+ }
+ }
+
+ // If this block is changed, it may need to be updated in GFM mode
+ if (ch === '`') {
+ 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;
+ }
+ return getType(state);
+ }
+ } else if (state.code) {
+ return getType(state);
+ }
+
+ if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) {
+ stream.match(/\[[^\]]*\]/);
+ state.inline = state.f = linkHref;
+ return image;
+ }
+
+ if (ch === '[' && stream.match(/.*\](\(| ?\[)/, false)) {
+ state.linkText = true;
+ return getType(state);
+ }
+
+ if (ch === ']' && state.linkText) {
+ var type = getType(state);
+ state.linkText = false;
+ state.inline = state.f = linkHref;
+ return type;
+ }
+
+ if (ch === '<' && stream.match(/^(https?|ftps?):\/\/(?:[^\\>]|\\.)+>/, false)) {
+ return switchInline(stream, state, inlineElement(linkinline, '>'));
+ }
+
+ if (ch === '<' && stream.match(/^[^> \\]+@(?:[^\\>]|\\.)+>/, false)) {
+ return switchInline(stream, state, inlineElement(linkemail, '>'));
+ }
+
+ if (ch === '<' && stream.match(/^\w/, false)) {
+ if (stream.string.indexOf(">")!=-1) {
+ var atts = stream.string.substring(1,stream.string.indexOf(">"));
+ if (/markdown\s*=\s*('|"){0,1}1('|"){0,1}/.test(atts)) {
+ state.md_inside = true;
+ }
+ }
+ stream.backUp(1);
+ 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;
+ }
+ }
+ }
+ }
+ var t = getType(state);
+ if (ch === '*' || (ch === '_' && !ignoreUnderscore)) {
+ if (state.strong === ch && stream.eat(ch)) { // Remove STRONG
+ state.strong = false;
+ return t;
+ } else if (!state.strong && stream.eat(ch)) { // Add STRONG
+ state.strong = ch;
+ return getType(state);
+ } else if (state.em === ch) { // Remove EM
+ state.em = false;
+ return t;
+ } else if (!state.em) { // Add EM
+ state.em = ch;
+ 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 (ch === ' ') {
+ if (stream.match(/ +$/, false)) {
+ state.trailingSpace++;
+ } else if (state.trailingSpace) {
+ state.trailingSpaceNewLine = true;
+ }
+ }
+
+ return getType(state);
+ }
+
+ 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 === '[') {
+ return switchInline(stream, state, inlineElement(linkhref, ch === '(' ? ')' : ']'));
+ }
+ return 'error';
+ }
+
+ function footnoteLink(stream, state) {
+ if (stream.match(/^[^\]]*\]:/, true)) {
+ state.f = footnoteUrl;
+ return linktext;
+ }
+ return switchInline(stream, state, inlineNormal);
+ }
+
+ 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 linkhref;
+ }
+
+ 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];
+ }
+
+ function inlineElement(type, endChar, next) {
+ next = next || inlineNormal;
+ return function(stream, state) {
+ stream.match(inlineRE(endChar));
+ state.inline = state.f = next;
+ return type;
+ };
+ }
+
+ return {
+ startState: function() {
+ return {
+ f: blockNormal,
+
+ prevLineHasContent: false,
+ thisLineHasContent: false,
+
+ block: blockNormal,
+ htmlState: CodeMirror.startState(htmlMode),
+ indentation: 0,
+
+ inline: inlineNormal,
+ text: handleText,
+
+ linkText: false,
+ linkTitle: false,
+ em: false,
+ strong: false,
+ header: false,
+ taskList: false,
+ list: false,
+ listDepth: 0,
+ quote: 0,
+ trailingSpace: 0,
+ trailingSpaceNewLine: false
+ };
+ },
+
+ copyState: function(s) {
+ return {
+ f: s.f,
+
+ prevLineHasContent: s.prevLineHasContent,
+ thisLineHasContent: s.thisLineHasContent,
+
+ block: s.block,
+ 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,
+ linkTitle: s.linkTitle,
+ em: s.em,
+ strong: s.strong,
+ header: s.header,
+ taskList: s.taskList,
+ list: s.list,
+ listDepth: s.listDepth,
+ quote: s.quote,
+ trailingSpace: s.trailingSpace,
+ trailingSpaceNewLine: s.trailingSpaceNewLine,
+ md_inside: s.md_inside
+ };
+ },
+
+ token: function(stream, state) {
+ if (stream.sol()) {
+ if (stream.match(/^\s*$/, true)) {
+ state.prevLineHasContent = false;
+ return blankLine(state);
+ } else {
+ state.prevLineHasContent = state.thisLineHasContent;
+ state.thisLineHasContent = true;
+ }
+
+ // Reset state.header
+ state.header = false;
+
+ // Reset state.taskList
+ state.taskList = false;
+
+ // Reset state.code
+ state.code = 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);
+ },
+
+ blankLine: blankLine,
+
+ getType: getType
+ };
+
+}, "xml");
+
+CodeMirror.defineMIME("text/x-markdown", "markdown");