Subversion-Projekte lars-tiefland.ci

// 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;

  // 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;

  // Turn on strikethrough syntax

  if (modeCfg.strikethrough === undefined)

    modeCfg.strikethrough = false;

  var codeDepth = 0;

  var 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';

  var hrRE = /^([*\-_])(?:\s*\1){2,}\s*$/

  ,   ulRE = /^[*\-+]\s+/

  ,   olRE = /^[0-9]+([.)])\s+/

  ,   taskListRE = /^\[(x| )\](?=\s)/ // Must follow ulRE or olRE

  ,   atxHeaderRE = /^(#+)(?: |$)/

  ,   setextHeaderRE = /^ *(?:\={1,}|-{1,})\s*$/

  ,   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 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.thisLineHasContent = false;

    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 || !state.prevLineHasContent) {

        state.indentation -= 4;

        state.indentedCode = true;

        return 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 (state.prevLineHasContent && !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 hr;

    } else if ((!state.prevLineHasContent || 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 += 4;

      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 && stream.match(/^```[ \t]*([\w+#]*)/, true)) {

      // try switching mode

      state.localMode = getMode(RegExp.$1);

      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 (stream.sol() && stream.match("```", 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 code;

    }

  }

  function leavingLocal(stream, state) {

    stream.match("```");

    state.block = blockNormal;

    state.f = inlineNormal;

    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(formatting);

      if (typeof state.formatting === "string") state.formatting = [state.formatting];

      for (var i = 0; i < state.formatting.length; i++) {

        styles.push(formatting + "-" + state.formatting[i]);

        if (state.formatting[i] === "header") {

          styles.push(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(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(linkhref, "url");

    } else { // Only apply inline styles to non-url text

      if (state.strong) { styles.push(strong); }

      if (state.em) { styles.push(em); }

      if (state.strikethrough) { styles.push(strikethrough); }

      if (state.linkText) { styles.push(linktext); }

      if (state.code) { styles.push(code); }

    }

    if (state.header) { styles.push(header); styles.push(header + "-" + state.header); }

    if (state.quote) {

      styles.push(quote);

      // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth

      if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {

        styles.push(quote + "-" + state.quote);

      } else {

        styles.push(quote + "-" + modeCfg.maxBlockquoteDepth);

      }

    }

    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;

      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);

        return type ? type + " formatting-escape" : "formatting-escape";

      }

    }

    // 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 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 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 + 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 + 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 + 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 + " 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,

        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,

        hr: false,

        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,

        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

      };

    },

    token: function(stream, state) {

      // Reset state.formatting

      state.formatting = false;

      if (stream.sol()) {

        var forceBlankLine = !!state.header || state.hr;

        // Reset state.header and state.hr

        state.header = 0;

        state.hr = false;

        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");

});