/*
 * Copyright (c) 2010, Ajax.org B.V.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Ajax.org B.V. nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL AJAX.ORG B.V. BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
ace.define('ace/mode/perl', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/text', 'ace/tokenizer', 'ace/mode/perl_highlight_rules', 'ace/mode/matching_brace_outdent', 'ace/range', 'ace/mode/folding/cstyle'], function(require, exports, module) {


var oop = require("../lib/oop");
var TextMode = require("./text").Mode;
var Tokenizer = require("../tokenizer").Tokenizer;
var PerlHighlightRules = require("./perl_highlight_rules").PerlHighlightRules;
var MatchingBraceOutdent = require("./matching_brace_outdent").MatchingBraceOutdent;
var Range = require("../range").Range;
var CStyleFoldMode = require("./folding/cstyle").FoldMode;

var Mode = function() {
    this.HighlightRules = PerlHighlightRules;
    
    this.$outdent = new MatchingBraceOutdent();
    this.foldingRules = new CStyleFoldMode({start: "^=(begin|item)\\b", end: "^=(cut)\\b"});
};
oop.inherits(Mode, TextMode);

(function() {

    this.lineCommentStart = "#";
    this.blockComment = [
        {start: "=begin", end: "=cut"},
        {start: "=item", end: "=cut"}
    ];


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

        var tokenizedLine = this.getTokenizer().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.$id = "ace/mode/perl";
}).call(Mode.prototype);

exports.Mode = Mode;
});

ace.define('ace/mode/perl_highlight_rules', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/text_highlight_rules'], function(require, exports, module) {


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

var PerlHighlightRules = function() {

    var keywords = (
        "base|constant|continue|else|elsif|for|foreach|format|goto|if|last|local|my|next|" +
         "no|package|parent|redo|require|scalar|sub|unless|until|while|use|vars"
    );

    var buildinConstants = ("ARGV|ENV|INC|SIG");

    var builtinFunctions = (
        "getprotobynumber|getprotobyname|getservbyname|gethostbyaddr|" +
         "gethostbyname|getservbyport|getnetbyaddr|getnetbyname|getsockname|" +
         "getpeername|setpriority|getprotoent|setprotoent|getpriority|" +
         "endprotoent|getservent|setservent|endservent|sethostent|socketpair|" +
         "getsockopt|gethostent|endhostent|setsockopt|setnetent|quotemeta|" +
         "localtime|prototype|getnetent|endnetent|rewinddir|wantarray|getpwuid|" +
         "closedir|getlogin|readlink|endgrent|getgrgid|getgrnam|shmwrite|" +
         "shutdown|readline|endpwent|setgrent|readpipe|formline|truncate|" +
         "dbmclose|syswrite|setpwent|getpwnam|getgrent|getpwent|ucfirst|sysread|" +
         "setpgrp|shmread|sysseek|sysopen|telldir|defined|opendir|connect|" +
         "lcfirst|getppid|binmode|syscall|sprintf|getpgrp|readdir|seekdir|" +
         "waitpid|reverse|unshift|symlink|dbmopen|semget|msgrcv|rename|listen|" +
         "chroot|msgsnd|shmctl|accept|unpack|exists|fileno|shmget|system|" +
         "unlink|printf|gmtime|msgctl|semctl|values|rindex|substr|splice|" +
         "length|msgget|select|socket|return|caller|delete|alarm|ioctl|index|" +
         "undef|lstat|times|srand|chown|fcntl|close|write|umask|rmdir|study|" +
         "sleep|chomp|untie|print|utime|mkdir|atan2|split|crypt|flock|chmod|" +
         "BEGIN|bless|chdir|semop|shift|reset|link|stat|chop|grep|fork|dump|" +
         "join|open|tell|pipe|exit|glob|warn|each|bind|sort|pack|eval|push|" +
         "keys|getc|kill|seek|sqrt|send|wait|rand|tied|read|time|exec|recv|" +
         "eof|chr|int|ord|exp|pos|pop|sin|log|abs|oct|hex|tie|cos|vec|END|ref|" +
         "map|die|uc|lc|do"
    );

    var keywordMapper = this.createKeywordMapper({
        "keyword": keywords,
        "constant.language": buildinConstants,
        "support.function": builtinFunctions
    }, "identifier");

    this.$rules = {
        "start" : [
            {
                token : "comment.doc",
                regex : "^=(?:begin|item)\\b",
                next : "block_comment"
            }, {
                token : "string.regexp",
                regex : "[/](?:(?:\\[(?:\\\\]|[^\\]])+\\])|(?:\\\\/|[^\\]/]))*[/]\\w*\\s*(?=[).,;]|$)"
            }, {
                token : "string", // single line
                regex : '["](?:(?:\\\\.)|(?:[^"\\\\]))*?["]'
            }, {
                token : "string", // multi line string start
                regex : '["].*\\\\$',
                next : "qqstring"
            }, {
                token : "string", // single line
                regex : "['](?:(?:\\\\.)|(?:[^'\\\\]))*?[']"
            }, {
                token : "string", // multi line string start
                regex : "['].*\\\\$",
                next : "qstring"
            }, {
                token : "constant.numeric", // hex
                regex : "0x[0-9a-fA-F]+\\b"
            }, {
                token : "constant.numeric", // float
                regex : "[+-]?\\d+(?:(?:\\.\\d*)?(?:[eE][+-]?\\d+)?)?\\b"
            }, {
                token : keywordMapper,
                regex : "[a-zA-Z_$][a-zA-Z0-9_$]*\\b"
            }, {
                token : "keyword.operator",
                regex : "%#|\\$#|\\.\\.\\.|\\|\\|=|>>=|<<=|<=>|&&=|=>|!~|\\^=|&=|\\|=|\\.=|x=|%=|\\/=|\\*=|\\-=|\\+=|=~|\\*\\*|\\-\\-|\\.\\.|\\|\\||&&|\\+\\+|\\->|!=|==|>=|<=|>>|<<|,|=|\\?\\:|\\^|\\||x|%|\\/|\\*|<|&|\\\\|~|!|>|\\.|\\-|\\+|\\-C|\\-b|\\-S|\\-u|\\-t|\\-p|\\-l|\\-d|\\-f|\\-g|\\-s|\\-z|\\-k|\\-e|\\-O|\\-T|\\-B|\\-M|\\-A|\\-X|\\-W|\\-c|\\-R|\\-o|\\-x|\\-w|\\-r|\\b(?:and|cmp|eq|ge|gt|le|lt|ne|not|or|xor)"
            }, {
                token : "comment",
                regex : "#.*$"
            }, {
                token : "lparen",
                regex : "[[({]"
            }, {
                token : "rparen",
                regex : "[\\])}]"
            }, {
                token : "text",
                regex : "\\s+"
            }
        ],
        "qqstring" : [
            {
                token : "string",
                regex : '(?:(?:\\\\.)|(?:[^"\\\\]))*?"',
                next : "start"
            }, {
                token : "string",
                regex : '.+'
            }
        ],
        "qstring" : [
            {
                token : "string",
                regex : "(?:(?:\\\\.)|(?:[^'\\\\]))*?'",
                next : "start"
            }, {
                token : "string",
                regex : '.+'
            }
        ],
        "block_comment": [
            {
                token: "comment.doc", 
                regex: "^=cut\\b",
                next: "start"
            },
            {
                defaultToken: "comment.doc"
            }
        ]
    };
};

oop.inherits(PerlHighlightRules, TextHighlightRules);

exports.PerlHighlightRules = PerlHighlightRules;
});

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


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) {
        return line.match(/^\s*/)[0];
    };

}).call(MatchingBraceOutdent.prototype);

exports.MatchingBraceOutdent = MatchingBraceOutdent;
});

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


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

var FoldMode = exports.FoldMode = function(commentRegex) {
    if (commentRegex) {
        this.foldingStartMarker = new RegExp(
            this.foldingStartMarker.source.replace(/\|[^|]*?$/, "|" + commentRegex.start)
        );
        this.foldingStopMarker = new RegExp(
            this.foldingStopMarker.source.replace(/\|[^|]*?$/, "|" + commentRegex.end)
        );
    }
};
oop.inherits(FoldMode, BaseFoldMode);

(function() {

    this.foldingStartMarker = /(\{|\[)[^\}\]]*$|^\s*(\/\*)/;
    this.foldingStopMarker = /^[^\[\{]*(\}|\])|^[\s\*]*(\*\/)/;

    this.getFoldWidgetRange = function(session, foldStyle, row, forceMultiline) {
        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, 1);
            
            if (range && !range.isMultiLine()) {
                if (forceMultiline) {
                    range = this.getSectionRange(session, row);
                } else if (foldStyle != "all")
                    range = null;
            }
            
            return range;
        }

        if (foldStyle === "markbegin")
            return;

        var match = line.match(this.foldingStopMarker);
        if (match) {
            var i = match.index + match[0].length;

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

            return session.getCommentFoldRange(row, i, -1);
        }
    };
    
    this.getSectionRange = function(session, row) {
        var line = session.getLine(row);
        var startIndent = line.search(/\S/);
        var startRow = row;
        var startColumn = line.length;
        row = row + 1;
        var endRow = row;
        var maxRow = session.getLength();
        while (++row < maxRow) {
            line = session.getLine(row);
            var indent = line.search(/\S/);
            if (indent === -1)
                continue;
            if  (startIndent > indent)
                break;
            var subRange = this.getFoldWidgetRange(session, "all", row);
            
            if (subRange) {
                if (subRange.start.row <= startRow) {
                    break;
                } else if (subRange.isMultiLine()) {
                    row = subRange.end.row;
                } else if (startIndent == indent) {
                    break;
                }
            }
            endRow = row;
        }
        
        return new Range(startRow, startColumn, endRow, session.getLine(endRow).length);
    };

}).call(FoldMode.prototype);

});
