/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Ajax.org Code Editor (ACE).
 *
 * The Initial Developer of the Original Code is
 * Ajax.org B.V.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *      Fabian Jakobs <fabian AT ajax DOT org>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

ace.define('ace/mode/css', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/text', 'ace/tokenizer', 'ace/mode/css_highlight_rules', 'ace/mode/matching_brace_outdent', 'ace/worker/worker_client', 'ace/mode/folding/cstyle'], function(require, exports, module) {
"use strict";

var oop = require("../lib/oop");
var TextMode = require("./text").Mode;
var Tokenizer = require("../tokenizer").Tokenizer;
var CssHighlightRules = require("./css_highlight_rules").CssHighlightRules;
var MatchingBraceOutdent = require("./matching_brace_outdent").MatchingBraceOutdent;
var WorkerClient = require("../worker/worker_client").WorkerClient;
var CStyleFoldMode = require("./folding/cstyle").FoldMode;

var Mode = function() {
    this.$tokenizer = new Tokenizer(new CssHighlightRules().getRules(), "i");
    this.$outdent = new MatchingBraceOutdent();
    this.foldingRules = new CStyleFoldMode();
};
oop.inherits(Mode, TextMode);

(function() {

    this.foldingRules = "cStyle";

    this.getNextLineIndent = function(state, line, tab) {
        var indent = this.$getIndent(line);

        // ignore braces in comments
        var tokens = this.$tokenizer.getLineTokens(line, state).tokens;
        if (tokens.length && tokens[tokens.length-1].type == "comment") {
            return indent;
        }

        var match = line.match(/^.*\{\s*$/);
        if (match) {
            indent += tab;
        }

        return indent;
    };

    this.checkOutdent = function(state, line, input) {
        return this.$outdent.checkOutdent(line, input);
    };

    this.autoOutdent = function(state, doc, row) {
        this.$outdent.autoOutdent(doc, row);
    };
    
    this.createWorker = function(session) {
        var worker = new WorkerClient(["ace"], "worker-css.js", "ace/mode/css_worker", "Worker");
        worker.attachToDocument(session.getDocument());
        
        worker.on("csslint", function(e) {
            var errors = [];
            e.data.forEach(function(message) {
                errors.push({
                    row: message.line - 1,
                    column: message.col - 1,
                    text: message.message,
                    type: message.type,
                    lint: message
                });
            });
            
            session.setAnnotations(errors);
        });
        return worker;
    };

}).call(Mode.prototype);

exports.Mode = Mode;

});
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Ajax.org Code Editor (ACE).
 *
 * The Initial Developer of the Original Code is
 * Ajax.org B.V.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *      Fabian Jakobs <fabian AT ajax DOT org>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

ace.define('ace/mode/css_highlight_rules', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/lib/lang', 'ace/mode/text_highlight_rules'], function(require, exports, module) {
"use strict";

var oop = require("../lib/oop");
var lang = require("../lib/lang");
var TextHighlightRules = require("./text_highlight_rules").TextHighlightRules;

var CssHighlightRules = function() {

    var properties = lang.arrayToMap(
        ("animation-fill-mode|alignment-adjust|alignment-baseline|animation-delay|animation-direction|animation-duration|animation-iteration-count|animation-name|animation-play-state|animation-timing-function|animation|appearance|azimuth|backface-visibility|background-attachment|background-break|background-clip|background-color|background-image|background-origin|background-position|background-repeat|background-size|background|baseline-shift|binding|bleed|bookmark-label|bookmark-level|bookmark-state|bookmark-target|border-bottom|border-bottom-color|border-bottom-left-radius|border-bottom-right-radius|border-bottom-style|border-bottom-width|border-collapse|border-color|border-image|border-image-outset|border-image-repeat|border-image-slice|border-image-source|border-image-width|border-left|border-left-color|border-left-style|border-left-width|border-radius|border-right|border-right-color|border-right-style|border-right-width|border-spacing|border-style|border-top|border-top-color|border-top-left-radius|border-top-right-radius|border-top-style|border-top-width|border-width|border|bottom|box-align|box-decoration-break|box-direction|box-flex-group|box-flex|box-lines|box-ordinal-group|box-orient|box-pack|box-shadow|box-sizing|break-after|break-before|break-inside|caption-side|clear|clip|color-profile|color|column-count|column-fill|column-gap|column-rule|column-rule-color|column-rule-style|column-rule-width|column-span|column-width|columns|content|counter-increment|counter-reset|crop|cue-after|cue-before|cue|cursor|direction|display|dominant-baseline|drop-initial-after-adjust|drop-initial-after-align|drop-initial-before-adjust|drop-initial-before-align|drop-initial-size|drop-initial-value|elevation|empty-cells|fit|fit-position|float-offset|float|font-family|font-size|font-size-adjust|font-stretch|font-style|font-variant|font-weight|font|grid-columns|grid-rows|hanging-punctuation|height|hyphenate-after|hyphenate-before|hyphenate-character|hyphenate-lines|hyphenate-resource|hyphens|icon|image-orientation|image-rendering|image-resolution|inline-box-align|left|letter-spacing|line-height|line-stacking-ruby|line-stacking-shift|line-stacking-strategy|line-stacking|list-style-image|list-style-position|list-style-type|list-style|margin-bottom|margin-left|margin-right|margin-top|margin|mark-after|mark-before|mark|marks|marquee-direction|marquee-play-count|marquee-speed|marquee-style|max-height|max-width|min-height|min-width|move-to|nav-down|nav-index|nav-left|nav-right|nav-up|opacity|orphans|outline-color|outline-offset|outline-style|outline-width|outline|overflow-style|overflow-x|overflow-y|overflow|padding-bottom|padding-left|padding-right|padding-top|padding|page-break-after|page-break-before|page-break-inside|page-policy|page|pause-after|pause-before|pause|perspective-origin|perspective|phonemes|pitch-range|pitch|play-during|position|presentation-level|punctuation-trim|quotes|rendering-intent|resize|rest-after|rest-before|rest|richness|right|rotation-point|rotation|ruby-align|ruby-overhang|ruby-position|ruby-span|size|speak-header|speak-numeral|speak-punctuation|speak|speech-rate|stress|string-set|table-layout|target-name|target-new|target-position|target|text-align-last|text-align|text-decoration|text-emphasis|text-height|text-indent|text-justify|text-outline|text-shadow|text-transform|text-wrap|top|transform-origin|transform-style|transform|transition-delay|transition-duration|transition-property|transition-timing-function|transition|unicode-bidi|vertical-align|visibility|voice-balance|voice-duration|voice-family|voice-pitch-range|voice-pitch|voice-rate|voice-stress|voice-volume|volume|white-space-collapse|white-space|widows|width|word-break|word-spacing|word-wrap|z-index").split("|")
    );

    var functions = lang.arrayToMap(
        ("rgb|rgba|url|attr|counter|counters").split("|")
    );

    var constants = lang.arrayToMap(
        ("absolute|after-edge|after|all-scroll|all|alphabetic|always|antialiased|armenian|auto|avoid-column|avoid-page|avoid|balance|baseline|before-edge|before|below|bidi-override|block-line-height|block|bold|bolder|border-box|both|bottom|box|break-all|break-word|capitalize|caps-height|caption|center|central|char|circle|cjk-ideographic|clone|close-quote|col-resize|collapse|column|consider-shifts|contain|content-box|cover|crosshair|cubic-bezier|dashed|decimal-leading-zero|decimal|default|disabled|disc|disregard-shifts|distribute-all-lines|distribute-letter|distribute-space|distribute|dotted|double|e-resize|ease-in|ease-in-out|ease-out|ease|ellipsis|end|exclude-ruby|fill|fixed|font-size|font|georgian|glyphs|grid-height|groove|hand|hanging|hebrew|help|hidden|hiragana-iroha|hiragana|horizontal|icon|ideograph-alpha|ideograph-numeric|ideograph-parenthesis|ideograph-space|ideographic|inactive|include-ruby|inherit|initial|inline-block|inline-box|inline-line-height|inline-table|inline|inset|inside|inter-ideograph|inter-word|invert|italic|justify|katakana-iroha|katakana|keep-all|last|left|lighter|line-edge|line-through|line|linear|list-item|local|loose|lower-alpha|lower-greek|lower-latin|lower-roman|lowercase|lr-tb|ltr|mathematical|max-height|max-size|medium|menu|message-box|middle|move|n-resize|ne-resize|newspaper|no-change|no-close-quote|no-drop|no-open-quote|no-repeat|none|normal|not-allowed|nowrap|nw-resize|oblique|open-quote|outset|outside|overline|padding-box|page|pointer|pre-line|pre-wrap|pre|preserve-3d|progress|relative|repeat-x|repeat-y|repeat|replaced|reset-size|ridge|right|round|row-resize|rtl|s-resize|scroll|se-resize|separate|slice|small-caps|small-caption|solid|space|square|start|static|status-bar|step-end|step-start|steps|stretch|strict|sub|super|sw-resize|table-caption|table-cell|table-column-group|table-column|table-footer-group|table-header-group|table-row-group|table-row|table|tb-rl|text-after-edge|text-before-edge|text-bottom|text-size|text-top|text|thick|thin|top|transparent|underline|upper-alpha|upper-latin|upper-roman|uppercase|use-script|vertical-ideographic|vertical-text|visible|w-resize|wait|whitespace|z-index|zero").split("|")
    );

    var colors = lang.arrayToMap(
        ("aqua|black|blue|fuchsia|gray|green|lime|maroon|navy|olive|orange|" +
        "purple|red|silver|teal|white|yellow").split("|")
    );

    var fonts = lang.arrayToMap(
        ("arial|century|comic|courier|garamond|georgia|helvetica|impact|lucida|" +
        "symbol|system|tahoma|times|trebuchet|utopia|verdana|webdings|sans-serif|" +
        "serif|monospace").split("|")
    );
    
    // regexp must not have capturing parentheses. Use (?:) instead.
    // regexps are ordered -> the first match is used

    var numRe = "\\-?(?:(?:[0-9]+)|(?:[0-9]*\\.[0-9]+))";
    var pseudoElements = "(\\:+)\\b(after|before|first-letter|first-line|moz-selection|selection)\\b";
    var pseudoClasses = "(:)\\b(active|checked|disabled|empty|enabled|first-child|first-of-type|focus|hover|indeterminate|invalid|last-child|last-of-type|link|not|nth-child|nth-last-child|nth-last-of-type|nth-of-type|only-child|only-of-type|required|root|target|valid|visited)\\b";
    
    var base_ruleset = [
        {
            token : "comment", // multi line comment
            merge : true,
            regex : "\\/\\*",
            next : "ruleset_comment"
        }, {
            token : "string", // single line
            regex : '["](?:(?:\\\\.)|(?:[^"\\\\]))*?["]'
        }, {
            token : "string", // single line
            regex : "['](?:(?:\\\\.)|(?:[^'\\\\]))*?[']"
        }, {
            token : ["constant.numeric", "keyword"],
            regex : "(" + numRe + ")(ch|cm|deg|em|ex|fr|gd|grad|Hz|in|kHz|mm|ms|pc|pt|px|rad|rem|s|turn|vh|vm|vw|%)"
        }, {
            token : ["constant.numeric"],
            regex : "([0-9]+)"
        }, {
            token : "constant.numeric",  // hex6 color
            regex : "#[a-f0-9]{6}"
        }, {
            token : "constant.numeric", // hex3 color
            regex : "#[a-f0-9]{3}"
        }, {
            token : ["punctuation", "entity.other.attribute-name.pseudo-element.css"], 
            regex : pseudoElements
        }, {
            token : ["punctuation", "entity.other.attribute-name.pseudo-class.css"], 
            regex : pseudoClasses
        }, {
            token : function(value) {
                if (properties.hasOwnProperty(value.toLowerCase())) {
                    return "support.type";
                }
                else if (functions.hasOwnProperty(value.toLowerCase())) {
                    return "support.function";
                }
                else if (constants.hasOwnProperty(value.toLowerCase())) {
                    return "support.constant";
                }
                else if (colors.hasOwnProperty(value.toLowerCase())) {
                    return "support.constant.color";
                }
                else if (fonts.hasOwnProperty(value.toLowerCase())) {
                    return "support.constant.fonts";
                }
                else {
                    return "text";
                }
            },
            regex : "\\-?[a-zA-Z_][a-zA-Z0-9_\\-]*"
        } 
      ];

    var ruleset = lang.copyArray(base_ruleset);
    ruleset.unshift({
        token : "paren.rparen",
        regex : "\\}",
        next:   "start"
    });

    var media_ruleset = lang.copyArray( base_ruleset );
    media_ruleset.unshift({
        token : "paren.rparen",
        regex : "\\}",
        next:   "media"
    });

    var base_comment = [{
          token : "comment", // comment spanning whole line
          merge : true,
          regex : ".+"
    }];

    var comment = lang.copyArray(base_comment);
    comment.unshift({
          token : "comment", // closing comment
          regex : ".*?\\*\\/",
          next : "start"
    });

    var media_comment = lang.copyArray(base_comment);
    media_comment.unshift({
          token : "comment", // closing comment
          regex : ".*?\\*\\/",
          next : "media"
    });

    var ruleset_comment = lang.copyArray(base_comment);
    ruleset_comment.unshift({
          token : "comment", // closing comment
          regex : ".*?\\*\\/",
          next : "ruleset"
    });

    this.$rules = {
        "start" : [{
            token : "comment", // multi line comment
            merge : true,
            regex : "\\/\\*",
            next : "comment"
        }, {
            token: "paren.lparen",
            regex: "\\{",
            next:  "ruleset"
        }, {
            token: "string",
            regex: "@.*?{",
            next:  "media"
        },{
            token: "keyword",
            regex: "#[a-z0-9-_]+"
        },{
            token: "variable",
            regex: "\\.[a-z0-9-_]+"
        },{
            token: "string",
            regex: ":[a-z0-9-_]+"
        },{
            token: "constant",
            regex: "[a-z0-9-_]+"
        }],

        "media" : [ {
            token : "comment", // multi line comment
            merge : true,
            regex : "\\/\\*",
            next : "media_comment"
        }, {
            token: "paren.lparen",
            regex: "\\{",
            next:  "media_ruleset"
        },{
            token: "string",
            regex: "\\}",
            next:  "start"
        },{
            token: "keyword",
            regex: "#[a-z0-9-_]+"
        },{
            token: "variable",
            regex: "\\.[a-z0-9-_]+"
        },{
            token: "string",
            regex: ":[a-z0-9-_]+"
        },{
            token: "constant",
            regex: "[a-z0-9-_]+"
        }],

        "comment" : comment,

        "ruleset" : ruleset,
        "ruleset_comment" : ruleset_comment,

        "media_ruleset" : media_ruleset,
        "media_comment" : media_comment
    };
};

oop.inherits(CssHighlightRules, TextHighlightRules);

exports.CssHighlightRules = CssHighlightRules;

});
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Ajax.org Code Editor (ACE).
 *
 * The Initial Developer of the Original Code is
 * Ajax.org B.V.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *      Fabian Jakobs <fabian AT ajax DOT org>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

ace.define('ace/mode/matching_brace_outdent', ['require', 'exports', 'module' , 'ace/range'], function(require, exports, module) {
"use strict";

var Range = require("../range").Range;

var MatchingBraceOutdent = function() {};

(function() {

    this.checkOutdent = function(line, input) {
        if (! /^\s+$/.test(line))
            return false;

        return /^\s*\}/.test(input);
    };

    this.autoOutdent = function(doc, row) {
        var line = doc.getLine(row);
        var match = line.match(/^(\s*\})/);

        if (!match) return 0;

        var column = match[1].length;
        var openBracePos = doc.findMatchingBracket({row: row, column: column});

        if (!openBracePos || openBracePos.row == row) return 0;

        var indent = this.$getIndent(doc.getLine(openBracePos.row));
        doc.replace(new Range(row, 0, row, column-1), indent);
    };

    this.$getIndent = function(line) {
        var match = line.match(/^(\s+)/);
        if (match) {
            return match[1];
        }

        return "";
    };

}).call(MatchingBraceOutdent.prototype);

exports.MatchingBraceOutdent = MatchingBraceOutdent;
});
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Ajax.org Code Editor (ACE).
 *
 * The Initial Developer of the Original Code is
 * Ajax.org B.V.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *      Fabian Jakobs <fabian AT ajax DOT org>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

ace.define('ace/mode/folding/cstyle', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/range', 'ace/mode/folding/fold_mode'], function(require, exports, module) {
"use strict";

var oop = require("../../lib/oop");
var Range = require("../../range").Range;
var BaseFoldMode = require("./fold_mode").FoldMode;

var FoldMode = exports.FoldMode = function() {};
oop.inherits(FoldMode, BaseFoldMode);

(function() {

    this.foldingStartMarker = /(\{|\[)[^\}\]]*$|^\s*(\/\*)/;
    this.foldingStopMarker = /^[^\[\{]*(\}|\])|^[\s\*]*(\*\/)/;
    
    this.getFoldWidgetRange = function(session, foldStyle, row) {
        var line = session.getLine(row);
        var match = line.match(this.foldingStartMarker);
        if (match) {
            var i = match.index;

            if (match[1])
                return this.openingBracketBlock(session, match[1], row, i);

            var range = session.getCommentFoldRange(row, i + match[0].length);
            range.end.column -= 2;
            return range;
        }

        if (foldStyle !== "markbeginend")
            return;
            
        var match = line.match(this.foldingStopMarker);
        if (match) {
            var i = match.index + match[0].length;

            if (match[2]) {
                var range = session.getCommentFoldRange(row, i);
                range.end.column -= 2;
                return range;
            }

            var end = {row: row, column: i};
            var start = session.$findOpeningBracket(match[1], end);
            
            if (!start)
                return;

            start.column++;
            end.column--;

            return  Range.fromPoints(start, end);
        }
    };
    
}).call(FoldMode.prototype);

});
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Ajax.org Code Editor (ACE).
 *
 * The Initial Developer of the Original Code is
 * Ajax.org B.V.
 * Portions created by the Initial Developer are Copyright (C) 2010
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *      Fabian Jakobs <fabian AT ajax DOT org>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

ace.define('ace/mode/folding/fold_mode', ['require', 'exports', 'module' , 'ace/range'], function(require, exports, module) {
"use strict";

var Range = require("../../range").Range;

var FoldMode = exports.FoldMode = function() {};

(function() {

    this.foldingStartMarker = null;
    this.foldingStopMarker = null;

    // must return "" if there's no fold, to enable caching
    this.getFoldWidget = function(session, foldStyle, row) {
        var line = session.getLine(row);
        if (this.foldingStartMarker.test(line))
            return "start";
        if (foldStyle == "markbeginend"
                && this.foldingStopMarker
                && this.foldingStopMarker.test(line))
            return "end";
        return "";
    };
    
    this.getFoldWidgetRange = function(session, foldStyle, row) {
        return null;
    };

    this.indentationBlock = function(session, row, column) {
        var re = /^\s*/;
        var startRow = row;
        var endRow = row;
        var line = session.getLine(row);
        var startColumn = column || line.length;
        var startLevel = line.match(re)[0].length;
        var maxRow = session.getLength()
        
        while (++row < maxRow) {
            line = session.getLine(row);
            var level = line.match(re)[0].length;

            if (level == line.length)
                continue;

            if (level <= startLevel)
                break;

            endRow = row;
        }

        if (endRow > startRow) {
            var endColumn = session.getLine(endRow).length;
            return new Range(startRow, startColumn, endRow, endColumn);
        }
    };

    this.openingBracketBlock = function(session, bracket, row, column) {
        var start = {row: row, column: column + 1};
        var end = session.$findClosingBracket(bracket, start);
        if (!end)
            return;

        var fw = session.foldWidgets[end.row];
        if (fw == null)
            fw = this.getFoldWidget(session, end.row);

        if (fw == "start") {
            end.row --;
            end.column = session.getLine(end.row).length;
        }
        return Range.fromPoints(start, end);
    };

}).call(FoldMode.prototype);

});
