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765 lines
23 KiB
765 lines
23 KiB
// CodeMirror, copyright (c) by Marijn Haverbeke and others
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// Distributed under an MIT license: http://codemirror.net/LICENSE
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(function(mod) {
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if (typeof exports == "object" && typeof module == "object") // CommonJS
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mod(require("../../lib/codemirror"), require("../xml/xml"), require("../meta"));
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else if (typeof define == "function" && define.amd) // AMD
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define(["../../lib/codemirror", "../xml/xml", "../meta"], mod);
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else // Plain browser env
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mod(CodeMirror);
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})(function(CodeMirror) {
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"use strict";
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CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
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var htmlFound = CodeMirror.modes.hasOwnProperty("xml");
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var htmlMode = CodeMirror.getMode(cmCfg, htmlFound ? {name: "xml", htmlMode: true} : "text/plain");
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function getMode(name) {
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if (CodeMirror.findModeByName) {
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var found = CodeMirror.findModeByName(name);
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if (found) name = found.mime || found.mimes[0];
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}
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var mode = CodeMirror.getMode(cmCfg, name);
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return mode.name == "null" ? null : mode;
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}
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// Should characters that affect highlighting be highlighted separate?
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// Does not include characters that will be output (such as `1.` and `-` for lists)
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if (modeCfg.highlightFormatting === undefined)
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modeCfg.highlightFormatting = false;
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// Maximum number of nested blockquotes. Set to 0 for infinite nesting.
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// Excess `>` will emit `error` token.
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if (modeCfg.maxBlockquoteDepth === undefined)
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modeCfg.maxBlockquoteDepth = 0;
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// Should underscores in words open/close em/strong?
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if (modeCfg.underscoresBreakWords === undefined)
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modeCfg.underscoresBreakWords = true;
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// Turn on fenced code blocks? ("```" to start/end)
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if (modeCfg.fencedCodeBlocks === undefined) modeCfg.fencedCodeBlocks = false;
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// Turn on task lists? ("- [ ] " and "- [x] ")
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if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;
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// Turn on strikethrough syntax
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if (modeCfg.strikethrough === undefined)
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modeCfg.strikethrough = false;
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var codeDepth = 0;
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var header = 'header'
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, code = 'comment'
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, quote = 'quote'
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, list1 = 'variable-2'
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, list2 = 'variable-3'
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, list3 = 'keyword'
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, hr = 'hr'
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, image = 'tag'
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, formatting = 'formatting'
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, linkinline = 'link'
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, linkemail = 'link'
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, linktext = 'link'
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, linkhref = 'string'
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, em = 'em'
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, strong = 'strong'
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, strikethrough = 'strikethrough';
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var hrRE = /^([*\-=_])(?:\s*\1){2,}\s*$/
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, ulRE = /^[*\-+]\s+/
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, olRE = /^[0-9]+\.\s+/
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, taskListRE = /^\[(x| )\](?=\s)/ // Must follow ulRE or olRE
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, atxHeaderRE = /^#+/
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, setextHeaderRE = /^(?:\={1,}|-{1,})$/
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, textRE = /^[^#!\[\]*_\\<>` "'(~]+/;
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function switchInline(stream, state, f) {
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state.f = state.inline = f;
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return f(stream, state);
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}
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function switchBlock(stream, state, f) {
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state.f = state.block = f;
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return f(stream, state);
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}
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// Blocks
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function blankLine(state) {
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// Reset linkTitle state
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state.linkTitle = false;
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// Reset EM state
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state.em = false;
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// Reset STRONG state
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state.strong = false;
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// Reset strikethrough state
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state.strikethrough = false;
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// Reset state.quote
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state.quote = 0;
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if (!htmlFound && state.f == htmlBlock) {
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state.f = inlineNormal;
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state.block = blockNormal;
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}
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// Reset state.trailingSpace
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state.trailingSpace = 0;
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state.trailingSpaceNewLine = false;
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// Mark this line as blank
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state.thisLineHasContent = false;
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return null;
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}
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function blockNormal(stream, state) {
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var sol = stream.sol();
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var prevLineIsList = (state.list !== false);
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if (state.list !== false && state.indentationDiff >= 0) { // Continued list
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if (state.indentationDiff < 4) { // Only adjust indentation if *not* a code block
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state.indentation -= state.indentationDiff;
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}
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state.list = null;
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} else if (state.list !== false && state.indentation > 0) {
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state.list = null;
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state.listDepth = Math.floor(state.indentation / 4);
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} else if (state.list !== false) { // No longer a list
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state.list = false;
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state.listDepth = 0;
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}
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var match = null;
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if (state.indentationDiff >= 4) {
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state.indentation -= 4;
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stream.skipToEnd();
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return code;
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} else if (stream.eatSpace()) {
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return null;
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} else if (match = stream.match(atxHeaderRE)) {
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state.header = match[0].length <= 6 ? match[0].length : 6;
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if (modeCfg.highlightFormatting) state.formatting = "header";
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state.f = state.inline;
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return getType(state);
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} else if (state.prevLineHasContent && (match = stream.match(setextHeaderRE))) {
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state.header = match[0].charAt(0) == '=' ? 1 : 2;
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if (modeCfg.highlightFormatting) state.formatting = "header";
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state.f = state.inline;
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return getType(state);
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} else if (stream.eat('>')) {
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state.indentation++;
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state.quote = sol ? 1 : state.quote + 1;
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if (modeCfg.highlightFormatting) state.formatting = "quote";
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stream.eatSpace();
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return getType(state);
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} else if (stream.peek() === '[') {
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return switchInline(stream, state, footnoteLink);
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} else if (stream.match(hrRE, true)) {
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return hr;
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} else if ((!state.prevLineHasContent || prevLineIsList) && (stream.match(ulRE, false) || stream.match(olRE, false))) {
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var listType = null;
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if (stream.match(ulRE, true)) {
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listType = 'ul';
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} else {
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stream.match(olRE, true);
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listType = 'ol';
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}
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state.indentation += 4;
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state.list = true;
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state.listDepth++;
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if (modeCfg.taskLists && stream.match(taskListRE, false)) {
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state.taskList = true;
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}
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state.f = state.inline;
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if (modeCfg.highlightFormatting) state.formatting = ["list", "list-" + listType];
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return getType(state);
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} else if (modeCfg.fencedCodeBlocks && stream.match(/^```[ \t]*([\w+#]*)/, true)) {
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// try switching mode
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state.localMode = getMode(RegExp.$1);
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if (state.localMode) state.localState = state.localMode.startState();
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state.f = state.block = local;
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if (modeCfg.highlightFormatting) state.formatting = "code-block";
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state.code = true;
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return getType(state);
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}
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return switchInline(stream, state, state.inline);
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}
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function htmlBlock(stream, state) {
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var style = htmlMode.token(stream, state.htmlState);
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if ((htmlFound && state.htmlState.tagStart === null && !state.htmlState.context) ||
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(state.md_inside && stream.current().indexOf(">") > -1)) {
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state.f = inlineNormal;
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state.block = blockNormal;
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state.htmlState = null;
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}
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return style;
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}
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function local(stream, state) {
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if (stream.sol() && stream.match("```", false)) {
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state.localMode = state.localState = null;
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state.f = state.block = leavingLocal;
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return null;
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} else if (state.localMode) {
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return state.localMode.token(stream, state.localState);
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} else {
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stream.skipToEnd();
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return code;
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}
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}
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function leavingLocal(stream, state) {
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stream.match("```");
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state.block = blockNormal;
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state.f = inlineNormal;
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if (modeCfg.highlightFormatting) state.formatting = "code-block";
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state.code = true;
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var returnType = getType(state);
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state.code = false;
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return returnType;
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}
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// Inline
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function getType(state) {
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var styles = [];
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if (state.formatting) {
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styles.push(formatting);
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if (typeof state.formatting === "string") state.formatting = [state.formatting];
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for (var i = 0; i < state.formatting.length; i++) {
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styles.push(formatting + "-" + state.formatting[i]);
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if (state.formatting[i] === "header") {
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styles.push(formatting + "-" + state.formatting[i] + "-" + state.header);
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}
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// Add `formatting-quote` and `formatting-quote-#` for blockquotes
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// Add `error` instead if the maximum blockquote nesting depth is passed
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if (state.formatting[i] === "quote") {
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if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
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styles.push(formatting + "-" + state.formatting[i] + "-" + state.quote);
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} else {
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styles.push("error");
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}
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}
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}
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}
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if (state.taskOpen) {
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styles.push("meta");
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return styles.length ? styles.join(' ') : null;
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}
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if (state.taskClosed) {
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styles.push("property");
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return styles.length ? styles.join(' ') : null;
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}
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if (state.linkHref) {
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styles.push(linkhref);
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return styles.length ? styles.join(' ') : null;
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}
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if (state.strong) { styles.push(strong); }
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if (state.em) { styles.push(em); }
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if (state.strikethrough) { styles.push(strikethrough); }
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if (state.linkText) { styles.push(linktext); }
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if (state.code) { styles.push(code); }
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if (state.header) { styles.push(header); styles.push(header + "-" + state.header); }
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if (state.quote) {
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styles.push(quote);
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// Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth
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if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
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styles.push(quote + "-" + state.quote);
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} else {
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styles.push(quote + "-" + modeCfg.maxBlockquoteDepth);
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}
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}
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if (state.list !== false) {
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var listMod = (state.listDepth - 1) % 3;
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if (!listMod) {
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styles.push(list1);
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} else if (listMod === 1) {
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styles.push(list2);
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} else {
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styles.push(list3);
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}
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}
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if (state.trailingSpaceNewLine) {
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styles.push("trailing-space-new-line");
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} else if (state.trailingSpace) {
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styles.push("trailing-space-" + (state.trailingSpace % 2 ? "a" : "b"));
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}
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return styles.length ? styles.join(' ') : null;
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}
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function handleText(stream, state) {
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if (stream.match(textRE, true)) {
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return getType(state);
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}
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return undefined;
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}
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function inlineNormal(stream, state) {
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var style = state.text(stream, state);
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if (typeof style !== 'undefined')
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return style;
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if (state.list) { // List marker (*, +, -, 1., etc)
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state.list = null;
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return getType(state);
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}
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if (state.taskList) {
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var taskOpen = stream.match(taskListRE, true)[1] !== "x";
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if (taskOpen) state.taskOpen = true;
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else state.taskClosed = true;
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if (modeCfg.highlightFormatting) state.formatting = "task";
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state.taskList = false;
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return getType(state);
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}
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state.taskOpen = false;
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state.taskClosed = false;
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if (state.header && stream.match(/^#+$/, true)) {
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if (modeCfg.highlightFormatting) state.formatting = "header";
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return getType(state);
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}
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// Get sol() value now, before character is consumed
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var sol = stream.sol();
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var ch = stream.next();
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if (ch === '\\') {
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stream.next();
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if (modeCfg.highlightFormatting) {
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var type = getType(state);
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return type ? type + " formatting-escape" : "formatting-escape";
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}
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}
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// Matches link titles present on next line
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if (state.linkTitle) {
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state.linkTitle = false;
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var matchCh = ch;
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if (ch === '(') {
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matchCh = ')';
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}
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matchCh = (matchCh+'').replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
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var regex = '^\\s*(?:[^' + matchCh + '\\\\]+|\\\\\\\\|\\\\.)' + matchCh;
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if (stream.match(new RegExp(regex), true)) {
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return linkhref;
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}
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}
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// If this block is changed, it may need to be updated in GFM mode
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if (ch === '`') {
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var previousFormatting = state.formatting;
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if (modeCfg.highlightFormatting) state.formatting = "code";
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var t = getType(state);
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var before = stream.pos;
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stream.eatWhile('`');
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var difference = 1 + stream.pos - before;
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if (!state.code) {
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codeDepth = difference;
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state.code = true;
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return getType(state);
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} else {
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if (difference === codeDepth) { // Must be exact
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state.code = false;
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return t;
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}
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state.formatting = previousFormatting;
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return getType(state);
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}
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} else if (state.code) {
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return getType(state);
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}
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if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) {
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stream.match(/\[[^\]]*\]/);
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state.inline = state.f = linkHref;
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return image;
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}
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if (ch === '[' && stream.match(/.*\](\(.*\)| ?\[.*\])/, false)) {
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state.linkText = true;
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if (modeCfg.highlightFormatting) state.formatting = "link";
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return getType(state);
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}
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if (ch === ']' && state.linkText && stream.match(/\(.*\)| ?\[.*\]/, false)) {
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if (modeCfg.highlightFormatting) state.formatting = "link";
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var type = getType(state);
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state.linkText = false;
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state.inline = state.f = linkHref;
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return type;
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}
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if (ch === '<' && stream.match(/^(https?|ftps?):\/\/(?:[^\\>]|\\.)+>/, false)) {
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state.f = state.inline = linkInline;
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if (modeCfg.highlightFormatting) state.formatting = "link";
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var type = getType(state);
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if (type){
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type += " ";
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} else {
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type = "";
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}
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return type + linkinline;
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}
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if (ch === '<' && stream.match(/^[^> \\]+@(?:[^\\>]|\\.)+>/, false)) {
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state.f = state.inline = linkInline;
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if (modeCfg.highlightFormatting) state.formatting = "link";
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var type = getType(state);
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if (type){
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type += " ";
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} else {
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type = "";
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}
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return type + linkemail;
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}
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if (ch === '<' && stream.match(/^\w/, false)) {
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if (stream.string.indexOf(">") != -1) {
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var atts = stream.string.substring(1,stream.string.indexOf(">"));
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if (/markdown\s*=\s*('|"){0,1}1('|"){0,1}/.test(atts)) {
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state.md_inside = true;
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}
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}
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stream.backUp(1);
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state.htmlState = CodeMirror.startState(htmlMode);
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return switchBlock(stream, state, htmlBlock);
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}
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if (ch === '<' && stream.match(/^\/\w*?>/)) {
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state.md_inside = false;
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return "tag";
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}
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var ignoreUnderscore = false;
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if (!modeCfg.underscoresBreakWords) {
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if (ch === '_' && stream.peek() !== '_' && stream.match(/(\w)/, false)) {
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var prevPos = stream.pos - 2;
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if (prevPos >= 0) {
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var prevCh = stream.string.charAt(prevPos);
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if (prevCh !== '_' && prevCh.match(/(\w)/, false)) {
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ignoreUnderscore = true;
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}
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}
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}
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}
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if (ch === '*' || (ch === '_' && !ignoreUnderscore)) {
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if (sol && stream.peek() === ' ') {
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// Do nothing, surrounded by newline and space
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} else if (state.strong === ch && stream.eat(ch)) { // Remove STRONG
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if (modeCfg.highlightFormatting) state.formatting = "strong";
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var t = getType(state);
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state.strong = false;
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return t;
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} else if (!state.strong && stream.eat(ch)) { // Add STRONG
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state.strong = ch;
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if (modeCfg.highlightFormatting) state.formatting = "strong";
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return getType(state);
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} else if (state.em === ch) { // Remove EM
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if (modeCfg.highlightFormatting) state.formatting = "em";
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var t = getType(state);
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state.em = false;
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return t;
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} else if (!state.em) { // Add EM
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state.em = ch;
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if (modeCfg.highlightFormatting) state.formatting = "em";
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return getType(state);
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}
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} else if (ch === ' ') {
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if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces
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if (stream.peek() === ' ') { // Surrounded by spaces, ignore
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return getType(state);
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} else { // Not surrounded by spaces, back up pointer
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stream.backUp(1);
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}
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}
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}
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if (modeCfg.strikethrough) {
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if (ch === '~' && stream.eatWhile(ch)) {
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if (state.strikethrough) {// Remove strikethrough
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if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
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|
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 + linkinline;
|
|
}
|
|
|
|
stream.match(/^[^>]+/, true);
|
|
|
|
return 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 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 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];
|
|
}
|
|
|
|
var mode = {
|
|
startState: function() {
|
|
return {
|
|
f: blockNormal,
|
|
|
|
prevLineHasContent: false,
|
|
thisLineHasContent: false,
|
|
|
|
block: blockNormal,
|
|
htmlState: null,
|
|
indentation: 0,
|
|
|
|
inline: inlineNormal,
|
|
text: handleText,
|
|
|
|
formatting: false,
|
|
linkText: false,
|
|
linkHref: false,
|
|
linkTitle: false,
|
|
em: false,
|
|
strong: false,
|
|
header: 0,
|
|
taskList: false,
|
|
list: false,
|
|
listDepth: 0,
|
|
quote: 0,
|
|
trailingSpace: 0,
|
|
trailingSpaceNewLine: false,
|
|
strikethrough: false
|
|
};
|
|
},
|
|
|
|
copyState: function(s) {
|
|
return {
|
|
f: s.f,
|
|
|
|
prevLineHasContent: s.prevLineHasContent,
|
|
thisLineHasContent: s.thisLineHasContent,
|
|
|
|
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,
|
|
em: s.em,
|
|
strong: s.strong,
|
|
strikethrough: s.strikethrough,
|
|
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) {
|
|
|
|
// Reset state.formatting
|
|
state.formatting = false;
|
|
|
|
if (stream.sol()) {
|
|
var forceBlankLine = !!state.header;
|
|
|
|
// Reset state.header
|
|
state.header = 0;
|
|
|
|
if (stream.match(/^\s*$/, true) || forceBlankLine) {
|
|
state.prevLineHasContent = false;
|
|
blankLine(state);
|
|
return forceBlankLine ? this.token(stream, state) : null;
|
|
} else {
|
|
state.prevLineHasContent = state.thisLineHasContent;
|
|
state.thisLineHasContent = true;
|
|
}
|
|
|
|
// 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);
|
|
},
|
|
|
|
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");
|
|
|
|
});
|