--- /dev/null
+CodeMirror.defineMode("gfm", function(config) {
+ 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) {
+ // 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(stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+@)?(?:[a-f0-9]{7,40}\b)/)) {
+ // User/Project@SHA
+ // User@SHA
+ // SHA
+ return "link";
+ } else if (stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+)?#[0-9]+\b/)) {
+ // User/Project#Num
+ // User#Num
+ // #Num
+ return "link";
+ }
+ }
+ if (stream.match(/^((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\([^\s()<>]*\))+(?:\([^\s()<>]*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/i)) {
+ // 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
+ return "link";
+ }
+ stream.next();
+ return null;
+ },
+ blankLine: blankLine
+ };
+ CodeMirror.defineMIME("gfmBase", {
+ name: "markdown",
+ underscoresBreakWords: false,
+ taskLists: true,
+ fencedCodeBlocks: true
+ });
+ return CodeMirror.overlayMode(CodeMirror.getMode(config, "gfmBase"), gfmOverlay);
+}, "markdown");