--- /dev/null
+CodeMirror.multiplexingMode = function(outer /*, others */) {
+ // Others should be {open, close, mode [, delimStyle] [, innerStyle]} objects
+ var others = Array.prototype.slice.call(arguments, 1);
+ var n_others = others.length;
+
+ function indexOf(string, pattern, from) {
+ if (typeof pattern == "string") return string.indexOf(pattern, from);
+ var m = pattern.exec(from ? string.slice(from) : string);
+ return m ? m.index + from : -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 < n_others; ++i) {
+ var other = others[i];
+ var found = indexOf(oldContent, other.open, stream.pos);
+ if (found == stream.pos) {
+ stream.match(other.open);
+ state.innerActive = other;
+ state.inner = CodeMirror.startState(other.mode, outer.indent ? outer.indent(state.outer, "") : 0);
+ return other.delimStyle;
+ } 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;
+ var found = indexOf(oldContent, curInner.close, stream.pos);
+ if (found == stream.pos) {
+ stream.match(curInner.close);
+ state.innerActive = state.inner = null;
+ return curInner.delimStyle;
+ }
+ if (found > -1) stream.string = oldContent.slice(0, found);
+ var innerToken = curInner.mode.token(stream, state.inner);
+ if (found > -1) stream.string = oldContent;
+ var cur = stream.current(), found = cur.indexOf(curInner.close);
+ if (found > -1) stream.backUp(cur.length - found);
+
+ 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 < n_others; ++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};
+ }
+ };
+};