Mercurial
diff .cms/lib/codemirror/mode/markdown/markdown.js @ 0:78edf6b517a0 draft
24.10
author | Coffee CMS <info@coffee-cms.ru> |
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date | Fri, 11 Oct 2024 22:40:23 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/.cms/lib/codemirror/mode/markdown/markdown.js Fri Oct 11 22:40:23 2024 +0000 @@ -0,0 +1,886 @@ +// CodeMirror, copyright (c) by Marijn Haverbeke and others +// Distributed under an MIT license: https://codemirror.net/5/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 htmlMode = CodeMirror.getMode(cmCfg, "text/html"); + var htmlModeMissing = htmlMode.name == "null" + + 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; + + // Turn on task lists? ("- [ ] " and "- [x] ") + if (modeCfg.taskLists === undefined) modeCfg.taskLists = false; + + // Turn on strikethrough syntax + if (modeCfg.strikethrough === undefined) + modeCfg.strikethrough = false; + + if (modeCfg.emoji === undefined) + modeCfg.emoji = false; + + if (modeCfg.fencedCodeBlockHighlighting === undefined) + modeCfg.fencedCodeBlockHighlighting = true; + + if (modeCfg.fencedCodeBlockDefaultMode === undefined) + modeCfg.fencedCodeBlockDefaultMode = 'text/plain'; + + if (modeCfg.xml === undefined) + modeCfg.xml = true; + + // Allow token types to be overridden by user-provided token types. + if (modeCfg.tokenTypeOverrides === undefined) + modeCfg.tokenTypeOverrides = {}; + + var tokenTypes = { + header: "header", + code: "comment", + quote: "quote", + list1: "variable-2", + list2: "variable-3", + list3: "keyword", + hr: "hr", + image: "image", + imageAltText: "image-alt-text", + imageMarker: "image-marker", + formatting: "formatting", + linkInline: "link", + linkEmail: "link", + linkText: "link", + linkHref: "string", + em: "em", + strong: "strong", + strikethrough: "strikethrough", + emoji: "builtin" + }; + + for (var tokenType in tokenTypes) { + if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) { + tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType]; + } + } + + var hrRE = /^([*\-_])(?:\s*\1){2,}\s*$/ + , listRE = /^(?:[*\-+]|^[0-9]+([.)]))\s+/ + , taskListRE = /^\[(x| )\](?=\s)/i // Must follow listRE + , atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/ + , setextHeaderRE = /^ {0,3}(?:\={1,}|-{2,})\s*$/ + , textRE = /^[^#!\[\]*_\\<>` "'(~:]+/ + , fencedCodeRE = /^(~~~+|```+)[ \t]*([\w\/+#-]*)[^\n`]*$/ + , linkDefRE = /^\s*\[[^\]]+?\]:.*$/ // naive link-definition + , punctuation = /[!"#$%&'()*+,\-.\/:;<=>?@\[\\\]^_`{|}~\xA1\xA7\xAB\xB6\xB7\xBB\xBF\u037E\u0387\u055A-\u055F\u0589\u058A\u05BE\u05C0\u05C3\u05C6\u05F3\u05F4\u0609\u060A\u060C\u060D\u061B\u061E\u061F\u066A-\u066D\u06D4\u0700-\u070D\u07F7-\u07F9\u0830-\u083E\u085E\u0964\u0965\u0970\u0AF0\u0DF4\u0E4F\u0E5A\u0E5B\u0F04-\u0F12\u0F14\u0F3A-\u0F3D\u0F85\u0FD0-\u0FD4\u0FD9\u0FDA\u104A-\u104F\u10FB\u1360-\u1368\u1400\u166D\u166E\u169B\u169C\u16EB-\u16ED\u1735\u1736\u17D4-\u17D6\u17D8-\u17DA\u1800-\u180A\u1944\u1945\u1A1E\u1A1F\u1AA0-\u1AA6\u1AA8-\u1AAD\u1B5A-\u1B60\u1BFC-\u1BFF\u1C3B-\u1C3F\u1C7E\u1C7F\u1CC0-\u1CC7\u1CD3\u2010-\u2027\u2030-\u2043\u2045-\u2051\u2053-\u205E\u207D\u207E\u208D\u208E\u2308-\u230B\u2329\u232A\u2768-\u2775\u27C5\u27C6\u27E6-\u27EF\u2983-\u2998\u29D8-\u29DB\u29FC\u29FD\u2CF9-\u2CFC\u2CFE\u2CFF\u2D70\u2E00-\u2E2E\u2E30-\u2E42\u3001-\u3003\u3008-\u3011\u3014-\u301F\u3030\u303D\u30A0\u30FB\uA4FE\uA4FF\uA60D-\uA60F\uA673\uA67E\uA6F2-\uA6F7\uA874-\uA877\uA8CE\uA8CF\uA8F8-\uA8FA\uA8FC\uA92E\uA92F\uA95F\uA9C1-\uA9CD\uA9DE\uA9DF\uAA5C-\uAA5F\uAADE\uAADF\uAAF0\uAAF1\uABEB\uFD3E\uFD3F\uFE10-\uFE19\uFE30-\uFE52\uFE54-\uFE61\uFE63\uFE68\uFE6A\uFE6B\uFF01-\uFF03\uFF05-\uFF0A\uFF0C-\uFF0F\uFF1A\uFF1B\uFF1F\uFF20\uFF3B-\uFF3D\uFF3F\uFF5B\uFF5D\uFF5F-\uFF65]|\uD800[\uDD00-\uDD02\uDF9F\uDFD0]|\uD801\uDD6F|\uD802[\uDC57\uDD1F\uDD3F\uDE50-\uDE58\uDE7F\uDEF0-\uDEF6\uDF39-\uDF3F\uDF99-\uDF9C]|\uD804[\uDC47-\uDC4D\uDCBB\uDCBC\uDCBE-\uDCC1\uDD40-\uDD43\uDD74\uDD75\uDDC5-\uDDC9\uDDCD\uDDDB\uDDDD-\uDDDF\uDE38-\uDE3D\uDEA9]|\uD805[\uDCC6\uDDC1-\uDDD7\uDE41-\uDE43\uDF3C-\uDF3E]|\uD809[\uDC70-\uDC74]|\uD81A[\uDE6E\uDE6F\uDEF5\uDF37-\uDF3B\uDF44]|\uD82F\uDC9F|\uD836[\uDE87-\uDE8B]/ + , expandedTab = " " // CommonMark specifies tab as 4 spaces + + 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; + state.linkHref = false; + state.linkText = 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 (state.f == htmlBlock) { + var exit = htmlModeMissing + if (!exit) { + var inner = CodeMirror.innerMode(htmlMode, state.htmlState) + exit = inner.mode.name == "xml" && inner.state.tagStart === null && + (!inner.state.context && inner.state.tokenize.isInText) + } + if (exit) { + state.f = inlineNormal; + state.block = blockNormal; + state.htmlState = null; + } + } + // Reset state.trailingSpace + state.trailingSpace = 0; + state.trailingSpaceNewLine = false; + // Mark this line as blank + state.prevLine = state.thisLine + state.thisLine = {stream: null} + return null; + } + + function blockNormal(stream, state) { + var firstTokenOnLine = stream.column() === state.indentation; + var prevLineLineIsEmpty = lineIsEmpty(state.prevLine.stream); + var prevLineIsIndentedCode = state.indentedCode; + var prevLineIsHr = state.prevLine.hr; + var prevLineIsList = state.list !== false; + var maxNonCodeIndentation = (state.listStack[state.listStack.length - 1] || 0) + 3; + + state.indentedCode = false; + + var lineIndentation = state.indentation; + // compute once per line (on first token) + if (state.indentationDiff === null) { + state.indentationDiff = state.indentation; + if (prevLineIsList) { + state.list = null; + // While this list item's marker's indentation is less than the deepest + // list item's content's indentation,pop the deepest list item + // indentation off the stack, and update block indentation state + while (lineIndentation < state.listStack[state.listStack.length - 1]) { + state.listStack.pop(); + if (state.listStack.length) { + state.indentation = state.listStack[state.listStack.length - 1]; + // less than the first list's indent -> the line is no longer a list + } else { + state.list = false; + } + } + if (state.list !== false) { + state.indentationDiff = lineIndentation - state.listStack[state.listStack.length - 1] + } + } + } + + // not comprehensive (currently only for setext detection purposes) + var allowsInlineContinuation = ( + !prevLineLineIsEmpty && !prevLineIsHr && !state.prevLine.header && + (!prevLineIsList || !prevLineIsIndentedCode) && + !state.prevLine.fencedCodeEnd + ); + + var isHr = (state.list === false || prevLineIsHr || prevLineLineIsEmpty) && + state.indentation <= maxNonCodeIndentation && stream.match(hrRE); + + var match = null; + if (state.indentationDiff >= 4 && (prevLineIsIndentedCode || state.prevLine.fencedCodeEnd || + state.prevLine.header || prevLineLineIsEmpty)) { + stream.skipToEnd(); + state.indentedCode = true; + return tokenTypes.code; + } else if (stream.eatSpace()) { + return null; + } else if (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(atxHeaderRE)) && match[1].length <= 6) { + state.quote = 0; + state.header = match[1].length; + state.thisLine.header = true; + if (modeCfg.highlightFormatting) state.formatting = "header"; + state.f = state.inline; + return getType(state); + } else if (state.indentation <= maxNonCodeIndentation && stream.eat('>')) { + state.quote = firstTokenOnLine ? 1 : state.quote + 1; + if (modeCfg.highlightFormatting) state.formatting = "quote"; + stream.eatSpace(); + return getType(state); + } else if (!isHr && !state.setext && firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(listRE))) { + var listType = match[1] ? "ol" : "ul"; + + state.indentation = lineIndentation + stream.current().length; + state.list = true; + state.quote = 0; + + // Add this list item's content's indentation to the stack + state.listStack.push(state.indentation); + // Reset inline styles which shouldn't propagate across list items + state.em = false; + state.strong = false; + state.code = false; + state.strikethrough = false; + + 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 (firstTokenOnLine && state.indentation <= maxNonCodeIndentation && (match = stream.match(fencedCodeRE, true))) { + state.quote = 0; + state.fencedEndRE = new RegExp(match[1] + "+ *$"); + // try switching mode + state.localMode = modeCfg.fencedCodeBlockHighlighting && getMode(match[2] || modeCfg.fencedCodeBlockDefaultMode ); + if (state.localMode) state.localState = CodeMirror.startState(state.localMode); + state.f = state.block = local; + if (modeCfg.highlightFormatting) state.formatting = "code-block"; + state.code = -1 + return getType(state); + // SETEXT has lowest block-scope precedence after HR, so check it after + // the others (code, blockquote, list...) + } else if ( + // if setext set, indicates line after ---/=== + state.setext || ( + // line before ---/=== + (!allowsInlineContinuation || !prevLineIsList) && !state.quote && state.list === false && + !state.code && !isHr && !linkDefRE.test(stream.string) && + (match = stream.lookAhead(1)) && (match = match.match(setextHeaderRE)) + ) + ) { + if ( !state.setext ) { + state.header = match[0].charAt(0) == '=' ? 1 : 2; + state.setext = state.header; + } else { + state.header = state.setext; + // has no effect on type so we can reset it now + state.setext = 0; + stream.skipToEnd(); + if (modeCfg.highlightFormatting) state.formatting = "header"; + } + state.thisLine.header = true; + state.f = state.inline; + return getType(state); + } else if (isHr) { + stream.skipToEnd(); + state.hr = true; + state.thisLine.hr = true; + return tokenTypes.hr; + } else if (stream.peek() === '[') { + return switchInline(stream, state, footnoteLink); + } + + return switchInline(stream, state, state.inline); + } + + function htmlBlock(stream, state) { + var style = htmlMode.token(stream, state.htmlState); + if (!htmlModeMissing) { + var inner = CodeMirror.innerMode(htmlMode, state.htmlState) + if ((inner.mode.name == "xml" && inner.state.tagStart === null && + (!inner.state.context && inner.state.tokenize.isInText)) || + (state.md_inside && stream.current().indexOf(">") > -1)) { + state.f = inlineNormal; + state.block = blockNormal; + state.htmlState = null; + } + } + return style; + } + + function local(stream, state) { + var currListInd = state.listStack[state.listStack.length - 1] || 0; + var hasExitedList = state.indentation < currListInd; + var maxFencedEndInd = currListInd + 3; + if (state.fencedEndRE && state.indentation <= maxFencedEndInd && (hasExitedList || stream.match(state.fencedEndRE))) { + if (modeCfg.highlightFormatting) state.formatting = "code-block"; + var returnType; + if (!hasExitedList) returnType = getType(state) + state.localMode = state.localState = null; + state.block = blockNormal; + state.f = inlineNormal; + state.fencedEndRE = null; + state.code = 0 + state.thisLine.fencedCodeEnd = true; + if (hasExitedList) return switchBlock(stream, state, state.block); + return returnType; + } else if (state.localMode) { + return state.localMode.token(stream, state.localState); + } else { + stream.skipToEnd(); + return tokenTypes.code; + } + } + + // 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.emoji) { styles.push(tokenTypes.emoji); } + if (state.linkText) { styles.push(tokenTypes.linkText); } + if (state.code) { styles.push(tokenTypes.code); } + if (state.image) { styles.push(tokenTypes.image); } + if (state.imageAltText) { styles.push(tokenTypes.imageAltText, "link"); } + if (state.imageMarker) { styles.push(tokenTypes.imageMarker); } + } + + 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.listStack.length - 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] === " "; + 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); + } + + var ch = stream.next(); + + // 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"; + stream.eatWhile('`'); + var count = stream.current().length + if (state.code == 0 && (!state.quote || count == 1)) { + state.code = count + return getType(state) + } else if (count == state.code) { // Must be exact + var t = getType(state) + state.code = 0 + return t + } else { + state.formatting = previousFormatting + return getType(state) + } + } else if (state.code) { + return getType(state); + } + + if (ch === '\\') { + stream.next(); + if (modeCfg.highlightFormatting) { + var type = getType(state); + var formattingEscape = tokenTypes.formatting + "-escape"; + return type ? type + " " + formattingEscape : formattingEscape; + } + } + + if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) { + state.imageMarker = true; + state.image = true; + if (modeCfg.highlightFormatting) state.formatting = "image"; + return getType(state); + } + + if (ch === '[' && state.imageMarker && stream.match(/[^\]]*\](\(.*?\)| ?\[.*?\])/, false)) { + state.imageMarker = false; + state.imageAltText = true + if (modeCfg.highlightFormatting) state.formatting = "image"; + return getType(state); + } + + if (ch === ']' && state.imageAltText) { + if (modeCfg.highlightFormatting) state.formatting = "image"; + var type = getType(state); + state.imageAltText = false; + state.image = false; + state.inline = state.f = linkHref; + return type; + } + + if (ch === '[' && !state.image) { + if (state.linkText && stream.match(/^.*?\]/)) return getType(state) + state.linkText = true; + if (modeCfg.highlightFormatting) state.formatting = "link"; + return getType(state); + } + + if (ch === ']' && state.linkText) { + if (modeCfg.highlightFormatting) state.formatting = "link"; + var type = getType(state); + state.linkText = false; + state.inline = state.f = stream.match(/\(.*?\)| ?\[.*?\]/, false) ? linkHref : inlineNormal + 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 (modeCfg.xml && ch === '<' && stream.match(/^(!--|\?|!\[CDATA\[|[a-z][a-z0-9-]*(?:\s+[a-z_:.\-]+(?:\s*=\s*[^>]+)?)*\s*(?:>|$))/i, 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 (modeCfg.xml && ch === '<' && stream.match(/^\/\w*?>/)) { + state.md_inside = false; + return "tag"; + } else if (ch === "*" || ch === "_") { + var len = 1, before = stream.pos == 1 ? " " : stream.string.charAt(stream.pos - 2) + while (len < 3 && stream.eat(ch)) len++ + var after = stream.peek() || " " + // See http://spec.commonmark.org/0.27/#emphasis-and-strong-emphasis + var leftFlanking = !/\s/.test(after) && (!punctuation.test(after) || /\s/.test(before) || punctuation.test(before)) + var rightFlanking = !/\s/.test(before) && (!punctuation.test(before) || /\s/.test(after) || punctuation.test(after)) + var setEm = null, setStrong = null + if (len % 2) { // Em + if (!state.em && leftFlanking && (ch === "*" || !rightFlanking || punctuation.test(before))) + setEm = true + else if (state.em == ch && rightFlanking && (ch === "*" || !leftFlanking || punctuation.test(after))) + setEm = false + } + if (len > 1) { // Strong + if (!state.strong && leftFlanking && (ch === "*" || !rightFlanking || punctuation.test(before))) + setStrong = true + else if (state.strong == ch && rightFlanking && (ch === "*" || !leftFlanking || punctuation.test(after))) + setStrong = false + } + if (setStrong != null || setEm != null) { + if (modeCfg.highlightFormatting) state.formatting = setEm == null ? "strong" : setStrong == null ? "em" : "strong em" + if (setEm === true) state.em = ch + if (setStrong === true) state.strong = ch + var t = getType(state) + if (setEm === false) state.em = false + if (setStrong === false) state.strong = false + return t + } + } 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 (modeCfg.emoji && ch === ":" && stream.match(/^(?:[a-z_\d+][a-z_\d+-]*|\-[a-z_\d+][a-z_\d+-]*):/)) { + state.emoji = true; + if (modeCfg.highlightFormatting) state.formatting = "emoji"; + var retType = getType(state); + state.emoji = false; + return retType; + } + + 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'; + } + + var linkRE = { + ")": /^(?:[^\\\(\)]|\\.|\((?:[^\\\(\)]|\\.)*\))*?(?=\))/, + "]": /^(?:[^\\\[\]]|\\.|\[(?:[^\\\[\]]|\\.)*\])*?(?=\])/ + } + + 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; + } + + stream.match(linkRE[endChar]) + 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 mode = { + startState: function() { + return { + f: blockNormal, + + prevLine: {stream: null}, + thisLine: {stream: null}, + + block: blockNormal, + htmlState: null, + indentation: 0, + + inline: inlineNormal, + text: handleText, + + formatting: false, + linkText: false, + linkHref: false, + linkTitle: false, + code: 0, + em: false, + strong: false, + header: 0, + setext: 0, + hr: false, + taskList: false, + list: false, + listStack: [], + quote: 0, + trailingSpace: 0, + trailingSpaceNewLine: false, + strikethrough: false, + emoji: false, + fencedEndRE: 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, + linkText: s.linkText, + linkTitle: s.linkTitle, + linkHref: s.linkHref, + code: s.code, + em: s.em, + strong: s.strong, + strikethrough: s.strikethrough, + emoji: s.emoji, + header: s.header, + setext: s.setext, + hr: s.hr, + taskList: s.taskList, + list: s.list, + listStack: s.listStack.slice(0), + quote: s.quote, + indentedCode: s.indentedCode, + trailingSpace: s.trailingSpace, + trailingSpaceNewLine: s.trailingSpaceNewLine, + md_inside: s.md_inside, + fencedEndRE: s.fencedEndRE + }; + }, + + token: function(stream, state) { + + // Reset state.formatting + state.formatting = false; + + if (stream != state.thisLine.stream) { + state.header = 0; + state.hr = false; + + if (stream.match(/^\s*$/, true)) { + blankLine(state); + return null; + } + + state.prevLine = state.thisLine + state.thisLine = {stream: stream} + + // Reset state.taskList + state.taskList = false; + + // Reset state.trailingSpace + state.trailingSpace = 0; + state.trailingSpaceNewLine = false; + + if (!state.localState) { + state.f = state.block; + if (state.f != htmlBlock) { + var indentation = stream.match(/^\s*/, true)[0].replace(/\t/g, expandedTab).length; + state.indentation = indentation; + state.indentationDiff = null; + 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}; + }, + + indent: function(state, textAfter, line) { + if (state.block == htmlBlock && htmlMode.indent) return htmlMode.indent(state.htmlState, textAfter, line) + if (state.localState && state.localMode.indent) return state.localMode.indent(state.localState, textAfter, line) + return CodeMirror.Pass + }, + + blankLine: blankLine, + + getType: getType, + + blockCommentStart: "<!--", + blockCommentEnd: "-->", + closeBrackets: "()[]{}''\"\"``", + fold: "markdown" + }; + return mode; +}, "xml"); + +CodeMirror.defineMIME("text/markdown", "markdown"); + +CodeMirror.defineMIME("text/x-markdown", "markdown"); + +});