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// CodeMirror, copyright (c) by Marijn Haverbeke and others

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// Distributed under an MIT license: http://codemirror.net/LICENSE

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(function(mod) {

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if (typeof exports == "object" && typeof module == "object") // CommonJS

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mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"), require("../ruby/ruby"));

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else if (typeof define == "function" && define.amd) // AMD

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define(["../../lib/codemirror", "../htmlmixed/htmlmixed", "../ruby/ruby"], mod);

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else // Plain browser env

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mod(CodeMirror);

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})(function(CodeMirror) {

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"use strict";

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// full haml mode. This handled embedded ruby and html fragments too

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CodeMirror.defineMode("haml", function(config) {

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var htmlMode = CodeMirror.getMode(config, {name: "htmlmixed"});

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var rubyMode = CodeMirror.getMode(config, "ruby");

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function rubyInQuote(endQuote) {

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return function(stream, state) {

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var ch = stream.peek();

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if (ch == endQuote && state.rubyState.tokenize.length == 1) {

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// step out of ruby context as it seems to complete processing all the braces

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stream.next();

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state.tokenize = html;

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return "closeAttributeTag";

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} else {

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return ruby(stream, state);

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}

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};

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}

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function ruby(stream, state) {

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if (stream.match("-#")) {

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stream.skipToEnd();

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return "comment";

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}

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return rubyMode.token(stream, state.rubyState);

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}

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function html(stream, state) {

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var ch = stream.peek();

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// handle haml declarations. All declarations that cant be handled here

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// will be passed to html mode

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if (state.previousToken.style == "comment" ) {

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if (state.indented > state.previousToken.indented) {

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stream.skipToEnd();

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return "commentLine";

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}

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}

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if (state.startOfLine) {

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if (ch == "!" && stream.match("!!")) {

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stream.skipToEnd();

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return "tag";

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} else if (stream.match(/^%[\w:#\.]+=/)) {

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state.tokenize = ruby;

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return "hamlTag";

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} else if (stream.match(/^%[\w:]+/)) {

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return "hamlTag";

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} else if (ch == "/" ) {

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stream.skipToEnd();

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return "comment";

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}

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}

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if (state.startOfLine || state.previousToken.style == "hamlTag") {

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if ( ch == "#" || ch == ".") {

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stream.match(/[\w-#\.]*/);

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return "hamlAttribute";

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}

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}

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// donot handle --> as valid ruby, make it HTML close comment instead

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if (state.startOfLine && !stream.match("-->", false) && (ch == "=" || ch == "-" )) {

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state.tokenize = ruby;

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return state.tokenize(stream, state);

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}

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if (state.previousToken.style == "hamlTag" ||

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state.previousToken.style == "closeAttributeTag" ||

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state.previousToken.style == "hamlAttribute") {

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if (ch == "(") {

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state.tokenize = rubyInQuote(")");

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return state.tokenize(stream, state);

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} else if (ch == "{") {

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if (!stream.match(/^\{%.*/)) {

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state.tokenize = rubyInQuote("}");

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return state.tokenize(stream, state);

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}

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}

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}

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return htmlMode.token(stream, state.htmlState);

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}

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return {

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// default to html mode

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startState: function() {

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var htmlState = CodeMirror.startState(htmlMode);

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var rubyState = CodeMirror.startState(rubyMode);

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return {

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htmlState: htmlState,

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rubyState: rubyState,

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indented: 0,

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previousToken: { style: null, indented: 0},

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tokenize: html

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};

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copyState: function(state) {

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return {

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htmlState : CodeMirror.copyState(htmlMode, state.htmlState),

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rubyState: CodeMirror.copyState(rubyMode, state.rubyState),

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indented: state.indented,

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previousToken: state.previousToken,

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tokenize: state.tokenize

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};

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token: function(stream, state) {

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if (stream.sol()) {

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state.indented = stream.indentation();

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state.startOfLine = true;

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}

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if (stream.eatSpace()) return null;

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var style = state.tokenize(stream, state);

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state.startOfLine = false;

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// dont record comment line as we only want to measure comment line with

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// the opening comment block

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if (style && style != "commentLine") {

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state.previousToken = { style: style, indented: state.indented };

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}

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// if current state is ruby and the previous token is not `,` reset the

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// tokenize to html

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if (stream.eol() && state.tokenize == ruby) {

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stream.backUp(1);

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var ch = stream.peek();

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stream.next();

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if (ch && ch != ",") {

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state.tokenize = html;

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}

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}

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// reprocess some of the specific style tag when finish setting previousToken

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if (style == "hamlTag") {

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style = "tag";

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} else if (style == "commentLine") {

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style = "comment";

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} else if (style == "hamlAttribute") {

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style = "attribute";

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} else if (style == "closeAttributeTag") {

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style = null;

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}

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return style;

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}

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};

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}, "htmlmixed", "ruby");

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

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});

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