DevTools: roll CodeMirror

third_party/WebKit/Source/devtools/front_end/cm/multiplex.js

Index: third_party/WebKit/Source/devtools/front_end/cm/multiplex.js
diff --git a/third_party/WebKit/Source/devtools/front_end/cm/multiplex.js b/third_party/WebKit/Source/devtools/front_end/cm/multiplex.js
new file mode 100644
index 0000000000000000000000000000000000000000..3d8b34c452013d25d732bb88cf842a048b73fffb
--- /dev/null
+++ b/third_party/WebKit/Source/devtools/front_end/cm/multiplex.js
@@ -0,0 +1,123 @@
+// 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"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.multiplexingMode = function(outer /*, others */) {
+  // Others should be {open, close, mode [, delimStyle] [, innerStyle]} objects
+  var others = Array.prototype.slice.call(arguments, 1);
+
+  function indexOf(string, pattern, from, returnEnd) {
+    if (typeof pattern == "string") {
+      var found = string.indexOf(pattern, from);
+      return returnEnd && found > -1 ? found + pattern.length : found;
+    }
+    var m = pattern.exec(from ? string.slice(from) : string);
+    return m ? m.index + from + (returnEnd ? m[0].length : 0) : -1;
+  }
+
+  return {
+    startState: function() {
+      return {
+        outer: CodeMirror.startState(outer),
+        innerActive: null,
+        inner: null
+      };
+    },
+
+    copyState: function(state) {
+      return {
+        outer: CodeMirror.copyState(outer, state.outer),
+        innerActive: state.innerActive,
+        inner: state.innerActive && CodeMirror.copyState(state.innerActive.mode, state.inner)
+      };
+    },
+
+    token: function(stream, state) {
+      if (!state.innerActive) {
+        var cutOff = Infinity, oldContent = stream.string;
+        for (var i = 0; i < others.length; ++i) {
+          var other = others[i];
+          var found = indexOf(oldContent, other.open, stream.pos);
+          if (found == stream.pos) {
+            if (!other.parseDelimiters) stream.match(other.open);
+            state.innerActive = other;
+            state.inner = CodeMirror.startState(other.mode, outer.indent ? outer.indent(state.outer, "") : 0);
+            return other.delimStyle && (other.delimStyle + " " + other.delimStyle + "-open");
+          } else if (found != -1 && found < cutOff) {
+            cutOff = found;
+          }
+        }
+        if (cutOff != Infinity) stream.string = oldContent.slice(0, cutOff);
+        var outerToken = outer.token(stream, state.outer);
+        if (cutOff != Infinity) stream.string = oldContent;
+        return outerToken;
+      } else {
+        var curInner = state.innerActive, oldContent = stream.string;
+        if (!curInner.close && stream.sol()) {
+          state.innerActive = state.inner = null;
+          return this.token(stream, state);
+        }
+        var found = curInner.close ? indexOf(oldContent, curInner.close, stream.pos, curInner.parseDelimiters) : -1;
+        if (found == stream.pos && !curInner.parseDelimiters) {
+          stream.match(curInner.close);
+          state.innerActive = state.inner = null;
+          return curInner.delimStyle && (curInner.delimStyle + " " + curInner.delimStyle + "-close");
+        }
+        if (found > -1) stream.string = oldContent.slice(0, found);
+        var innerToken = curInner.mode.token(stream, state.inner);
+        if (found > -1) stream.string = oldContent;
+
+        if (found == stream.pos && curInner.parseDelimiters)
+          state.innerActive = state.inner = null;
+
+        if (curInner.innerStyle) {
+          if (innerToken) innerToken = innerToken + " " + curInner.innerStyle;
+          else innerToken = curInner.innerStyle;
+        }
+
+        return innerToken;
+      }
+    },
+
+    indent: function(state, textAfter) {
+      var mode = state.innerActive ? state.innerActive.mode : outer;
+      if (!mode.indent) return CodeMirror.Pass;
+      return mode.indent(state.innerActive ? state.inner : state.outer, textAfter);
+    },
+
+    blankLine: function(state) {
+      var mode = state.innerActive ? state.innerActive.mode : outer;
+      if (mode.blankLine) {
+        mode.blankLine(state.innerActive ? state.inner : state.outer);
+      }
+      if (!state.innerActive) {
+        for (var i = 0; i < others.length; ++i) {
+          var other = others[i];
+          if (other.open === "\n") {
+            state.innerActive = other;
+            state.inner = CodeMirror.startState(other.mode, mode.indent ? mode.indent(state.outer, "") : 0);
+          }
+        }
+      } else if (state.innerActive.close === "\n") {
+        state.innerActive = state.inner = null;
+      }
+    },
+
+    electricChars: outer.electricChars,
+
+    innerMode: function(state) {
+      return state.inner ? {state: state.inner, mode: state.innerActive.mode} : {state: state.outer, mode: outer};
+    }
+  };
+};
+
+});