// CodeMirror, copyright © by Marijn Haverbeke and others // Distributed under an MIT license: codemirror.net/LICENSE

(function(mod) {

if (typeof exports == "object" && typeof module == "object") // CommonJS
  mod(require("../../lib/codemirror"), require("../markdown/markdown"), require("../../addon/mode/overlay"));
else if (typeof define == "function" && define.amd) // AMD
  define(["../../lib/codemirror", "../markdown/markdown", "../../addon/mode/overlay"], mod);
else // Plain browser env
  mod(CodeMirror);

})(function(CodeMirror) { “use strict”;

var urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc?|iris(?:.beep|.lwz|.xpc|.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm|snmp|soap.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc.beeps?|xmpp|xri|ymsgr|z39.50?):(?:/1,3}|[a-z0-9%])|wwwd{0,3|[a-z0-9.-]+[a-z]{2,4}/)(?:[^”>s()<>]|(*))+(?:([^s()<>]*)|[^s`*!(){};:'”.,<>?«»“”‘’]))/i

CodeMirror.defineMode(“gfm”, function(config, modeConfig) {

var codeDepth = 0;
function blankLine(state) {
  state.code = false;
  return null;
}
var gfmOverlay = {
  startState: function() {
    return {
      code: false,
      codeBlock: false,
      ateSpace: false
    };
  },
  copyState: function(s) {
    return {
      code: s.code,
      codeBlock: s.codeBlock,
      ateSpace: s.ateSpace
    };
  },
  token: function(stream, state) {
    state.combineTokens = null;

    // Hack to prevent formatting override inside code blocks (block and inline)
    if (state.codeBlock) {
      if (stream.match(/^```+/)) {
        state.codeBlock = false;
        return null;
      }
      stream.skipToEnd();
      return null;
    }
    if (stream.sol()) {
      state.code = false;
    }
    if (stream.sol() && stream.match(/^```+/)) {
      stream.skipToEnd();
      state.codeBlock = true;
      return null;
    }
    // If this block is changed, it may need to be updated in Markdown mode
    if (stream.peek() === '`') {
      stream.next();
      var before = stream.pos;
      stream.eatWhile('`');
      var difference = 1 + stream.pos - before;
      if (!state.code) {
        codeDepth = difference;
        state.code = true;
      } else {
        if (difference === codeDepth) { // Must be exact
          state.code = false;
        }
      }
      return null;
    } else if (state.code) {
      stream.next();
      return null;
    }
    // Check if space. If so, links can be formatted later on
    if (stream.eatSpace()) {
      state.ateSpace = true;
      return null;
    }
    if (stream.sol() || state.ateSpace) {
      state.ateSpace = false;
      if (modeConfig.gitHubSpice !== false) {
        if(stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+@)?(?:[a-f0-9]{7,40}\b)/)) {
          // User/Project@SHA
          // User@SHA
          // SHA
          state.combineTokens = true;
          return "link";
        } else if (stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+)?#[0-9]+\b/)) {
          // User/Project#Num
          // User#Num
          // #Num
          state.combineTokens = true;
          return "link";
        }
      }
    }
    if (stream.match(urlRE) &&
        stream.string.slice(stream.start - 2, stream.start) != "](" &&
        (stream.start == 0 || /\W/.test(stream.string.charAt(stream.start - 1)))) {
      // URLs
      // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls
      // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine
      // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL
      state.combineTokens = true;
      return "link";
    }
    stream.next();
    return null;
  },
  blankLine: blankLine
};

var markdownConfig = {
  taskLists: true,
  strikethrough: true,
  emoji: true
};
for (var attr in modeConfig) {
  markdownConfig[attr] = modeConfig[attr];
}
markdownConfig.name = "markdown";
return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay);

}, “markdown”);

CodeMirror.defineMIME("text/x-gfm", "gfm");

});