move a few things away in to-be-integrated/
[myslice.git] / to-be-integrated / third-party / codemirror-3.15 / mode / gfm / gfm.js
diff --git a/to-be-integrated/third-party/codemirror-3.15/mode/gfm/gfm.js b/to-be-integrated/third-party/codemirror-3.15/mode/gfm/gfm.js
new file mode 100644 (file)
index 0000000..1179b53
--- /dev/null
@@ -0,0 +1,96 @@
+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");