ace.define('ace/mode/csharp', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/text', 'ace/tokenizer', 'ace/mode/csharp_highlight_rules', 'ace/mode/matching_brace_outdent', 'ace/mode/behaviour/cstyle', '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 CSharpHighlightRules = require("./csharp_highlight_rules").CSharpHighlightRules;
var MatchingBraceOutdent = require("./matching_brace_outdent").MatchingBraceOutdent;
var CstyleBehaviour = require("./behaviour/cstyle").CstyleBehaviour;
var CStyleFoldMode = require("./folding/cstyle").FoldMode;

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

(function() {
    
    this.getNextLineIndent = function(state, line, tab) {
        var indent = this.$getIndent(line);
  
        var tokenizedLine = this.$tokenizer.getLineTokens(line, state);
        var tokens = tokenizedLine.tokens;
  
        if (tokens.length && tokens[tokens.length-1].type == "comment") {
            return indent;
        }
    
        if (state == "start") {
            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) {
        return null;
    };

}).call(Mode.prototype);

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

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

var CSharpHighlightRules = function() {
    
    var keywords = lang.arrayToMap(
    ("abstract|event|new|struct|as|explicit|null|switch|base|extern|object|this|bool|false|operator|throw|break|finally|out|true|byte|fixed|override|try|case|float|params|typeof|catch|for|private|uint|char|foreach|protected|ulong|checked|goto|public|unchecked|class|if|readonly|unsafe|const|implicit|ref|ushort|continue|in|return|using|decimal|int|sbyte|virtual|default|interface|sealed|volatile|delegate|internal|short|void|do|is|sizeof|while|double|lock|stackalloc|else|long|static|enum|namespace|string|var|dynamic").split("|")
    );

    var buildinConstants = lang.arrayToMap(
        ("null|true|false").split("|")
    );


    // regexp must not have capturing parentheses. Use (?:) instead.
    // regexps are ordered -> the first match is used

    this.$rules = {
        "start" : [
            {
                token : "comment",
                regex : "\\/\\/.*$"
            },
            new DocCommentHighlightRules().getStartRule("doc-start"),
            {
                token : "comment", // multi line comment
                regex : "\\/\\*",
                merge : true,
                next : "comment"
            }, {
                token : "string.regexp",
                regex : "[/](?:(?:\\[(?:\\\\]|[^\\]])+\\])|(?:\\\\/|[^\\]/]))*[/]\\w*\\s*(?=[).,;]|$)"
            }, {
                token : "string", // single line
                regex : '["](?:(?:\\\\.)|(?:[^"\\\\]))*?["]'
            }, {
                token : "string", // single line
                regex : "['](?:(?:\\\\.)|(?:[^'\\\\]))*?[']"
            }, {
                token : "constant.numeric", // hex
                regex : "0[xX][0-9a-fA-F]+\\b"
            }, {
                token : "constant.numeric", // float
                regex : "[+-]?\\d+(?:(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)?\\b"
            }, {
                token : "constant.language.boolean",
                regex : "(?:true|false)\\b"
            }, {
                token : function(value) {
                    if (value == "this")
                        return "variable.language";
                    else if (keywords.hasOwnProperty(value))
                        return "keyword";
                    else if (buildinConstants.hasOwnProperty(value))
                        return "constant.language";
                    else
                        return "identifier";
                },
                // TODO: Unicode escape sequences
                // TODO: Unicode identifiers
                regex : "[a-zA-Z_$][a-zA-Z0-9_$]*\\b"
            }, {
                token : "keyword.operator",
                regex : "!|\\$|%|&|\\*|\\-\\-|\\-|\\+\\+|\\+|~|===|==|=|!=|!==|<=|>=|<<=|>>=|>>>=|<>|<|>|!|&&|\\|\\||\\?\\:|\\*=|%=|\\+=|\\-=|&=|\\^=|\\b(?:in|instanceof|new|delete|typeof|void)"
            }, {
                token : "punctuation.operator",
                regex : "\\?|\\:|\\,|\\;|\\."
            }, {
                token : "paren.lparen",
                regex : "[[({]"
            }, {
                token : "paren.rparen",
                regex : "[\\])}]"
            }, {
                token : "text",
                regex : "\\s+"
            }
        ],
        "comment" : [
            {
                token : "comment", // closing comment
                regex : ".*?\\*\\/",
                next : "start"
            }, {
                token : "comment", // comment spanning whole line
                merge : true,
                regex : ".+"
            }
        ]
    };
    
    this.embedRules(DocCommentHighlightRules, "doc-",
        [ new DocCommentHighlightRules().getEndRule("start") ]);
};

oop.inherits(CSharpHighlightRules, TextHighlightRules);

exports.CSharpHighlightRules = CSharpHighlightRules;
});
/* ***** 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/doc_comment_highlight_rules', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/text_highlight_rules'], function(require, exports, module) {
"use strict";

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

var DocCommentHighlightRules = function() {

    this.$rules = {
        "start" : [ {
            token : "comment.doc.tag",
            regex : "@[\\w\\d_]+" // TODO: fix email addresses
        }, {
            token : "comment.doc",
            merge : true,
            regex : "\\s+"
        }, {
            token : "comment.doc",
            merge : true,
            regex : "TODO"
        }, {
            token : "comment.doc",
            merge : true,
            regex : "[^@\\*]+"
        }, {
            token : "comment.doc",
            merge : true,
            regex : "."
        }]
    };
};

oop.inherits(DocCommentHighlightRules, TextHighlightRules);

DocCommentHighlightRules.getStartRule = function(start) {
    return {
        token : "comment.doc", // doc comment
        merge : true,
        regex : "\\/\\*(?=\\*)",
        next  : start
    };
};

DocCommentHighlightRules.getEndRule = function (start) {
    return {
        token : "comment.doc", // closing comment
        merge : true,
        regex : "\\*\\/",
        next  : start
    };
};


exports.DocCommentHighlightRules = DocCommentHighlightRules;

});
/* ***** 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;
});
/* vim:ts=4:sts=4:sw=4:
 * ***** 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):
 *      Chris Spencer <chris.ag.spencer AT googlemail DOT com>
 *
 * 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/behaviour/cstyle', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/behaviour'], function(require, exports, module) {
"use strict";

var oop = require("../../lib/oop");
var Behaviour = require('../behaviour').Behaviour;

var CstyleBehaviour = function () {

    this.add("braces", "insertion", function (state, action, editor, session, text) {
        if (text == '{') {
            var selection = editor.getSelectionRange();
            var selected = session.doc.getTextRange(selection);
            if (selected !== "") {
                return {
                    text: '{' + selected + '}',
                    selection: false
                };
            } else {
                return {
                    text: '{}',
                    selection: [1, 1]
                };
            }
        } else if (text == '}') {
            var cursor = editor.getCursorPosition();
            var line = session.doc.getLine(cursor.row);
            var rightChar = line.substring(cursor.column, cursor.column + 1);
            if (rightChar == '}') {
                var matching = session.$findOpeningBracket('}', {column: cursor.column + 1, row: cursor.row});
                if (matching !== null) {
                    return {
                        text: '',
                        selection: [1, 1]
                    };
                }
            }
        } else if (text == "\n") {
            var cursor = editor.getCursorPosition();
            var line = session.doc.getLine(cursor.row);
            var rightChar = line.substring(cursor.column, cursor.column + 1);
            if (rightChar == '}') {
                var openBracePos = session.findMatchingBracket({row: cursor.row, column: cursor.column + 1});
                if (!openBracePos)
                     return null;

                var indent = this.getNextLineIndent(state, line.substring(0, line.length - 1), session.getTabString());
                var next_indent = this.$getIndent(session.doc.getLine(openBracePos.row));

                return {
                    text: '\n' + indent + '\n' + next_indent,
                    selection: [1, indent.length, 1, indent.length]
                };
            }
        }
    });

    this.add("braces", "deletion", function (state, action, editor, session, range) {
        var selected = session.doc.getTextRange(range);
        if (!range.isMultiLine() && selected == '{') {
            var line = session.doc.getLine(range.start.row);
            var rightChar = line.substring(range.end.column, range.end.column + 1);
            if (rightChar == '}') {
                range.end.column++;
                return range;
            }
        }
    });

    this.add("parens", "insertion", function (state, action, editor, session, text) {
        if (text == '(') {
            var selection = editor.getSelectionRange();
            var selected = session.doc.getTextRange(selection);
            if (selected !== "") {
                return {
                    text: '(' + selected + ')',
                    selection: false
                };
            } else {
                return {
                    text: '()',
                    selection: [1, 1]
                };
            }
        } else if (text == ')') {
            var cursor = editor.getCursorPosition();
            var line = session.doc.getLine(cursor.row);
            var rightChar = line.substring(cursor.column, cursor.column + 1);
            if (rightChar == ')') {
                var matching = session.$findOpeningBracket(')', {column: cursor.column + 1, row: cursor.row});
                if (matching !== null) {
                    return {
                        text: '',
                        selection: [1, 1]
                    };
                }
            }
        }
    });

    this.add("parens", "deletion", function (state, action, editor, session, range) {
        var selected = session.doc.getTextRange(range);
        if (!range.isMultiLine() && selected == '(') {
            var line = session.doc.getLine(range.start.row);
            var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
            if (rightChar == ')') {
                range.end.column++;
                return range;
            }
        }
    });

    this.add("string_dquotes", "insertion", function (state, action, editor, session, text) {
        if (text == '"' || text == "'") {
            var quote = text;
            var selection = editor.getSelectionRange();
            var selected = session.doc.getTextRange(selection);
            if (selected !== "") {
                return {
                    text: quote + selected + quote,
                    selection: false
                };
            } else {
                var cursor = editor.getCursorPosition();
                var line = session.doc.getLine(cursor.row);
                var leftChar = line.substring(cursor.column-1, cursor.column);

                // We're escaped.
                if (leftChar == '\\') {
                    return null;
                }

                // Find what token we're inside.
                var tokens = session.getTokens(selection.start.row, selection.start.row)[0].tokens;
                var col = 0, token;
                var quotepos = -1; // Track whether we're inside an open quote.

                for (var x = 0; x < tokens.length; x++) {
                    token = tokens[x];
                    if (token.type == "string") {
                      quotepos = -1;
                    } else if (quotepos < 0) {
                      quotepos = token.value.indexOf(quote);
                    }
                    if ((token.value.length + col) > selection.start.column) {
                        break;
                    }
                    col += tokens[x].value.length;
                }

                // Try and be smart about when we auto insert.
                if (!token || (quotepos < 0 && token.type !== "comment" && (token.type !== "string" || ((selection.start.column !== token.value.length+col-1) && token.value.lastIndexOf(quote) === token.value.length-1)))) {
                    return {
                        text: quote + quote,
                        selection: [1,1]
                    };
                } else if (token && token.type === "string") {
                    // Ignore input and move right one if we're typing over the closing quote.
                    var rightChar = line.substring(cursor.column, cursor.column + 1);
                    if (rightChar == quote) {
                        return {
                            text: '',
                            selection: [1, 1]
                        };
                    }
                }
            }
        }
    });

    this.add("string_dquotes", "deletion", function (state, action, editor, session, range) {
        var selected = session.doc.getTextRange(range);
        if (!range.isMultiLine() && (selected == '"' || selected == "'")) {
            var line = session.doc.getLine(range.start.row);
            var rightChar = line.substring(range.start.column + 1, range.start.column + 2);
            if (rightChar == '"') {
                range.end.column++;
                return range;
            }
        }
    });

};

oop.inherits(CstyleBehaviour, Behaviour);

exports.CstyleBehaviour = CstyleBehaviour;
});
/* ***** 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);

});
