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 * Distributed under the BSD license:
 *
 * Copyright (c) 2010, Ajax.org B.V.
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 * modification, are permitted provided that the following conditions are met:
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 *       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
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 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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ace.define('ace/mode/sh', ['require', 'exports', 'module' , 'ace/lib/oop', 'ace/mode/text', 'ace/tokenizer', 'ace/mode/sh_highlight_rules', 'ace/range'], function(require, exports, module) {


var oop = require("../lib/oop");
var TextMode = require("./text").Mode;
var Tokenizer = require("../tokenizer").Tokenizer;
var ShHighlightRules = require("./sh_highlight_rules").ShHighlightRules;
var Range = require("../range").Range;

var Mode = function() {
    this.$tokenizer = new Tokenizer(new ShHighlightRules().getRules());
};
oop.inherits(Mode, TextMode);

(function() {

    this.toggleCommentLines = function(state, doc, startRow, endRow) {
        var outdent = true;
        var re = /^(\s*)#/;

        for (var i=startRow; i<= endRow; i++) {
            if (!re.test(doc.getLine(i))) {
                outdent = false;
                break;
            }
        }

        if (outdent) {
            var deleteRange = new Range(0, 0, 0, 0);
            for (var i=startRow; i<= endRow; i++)
            {
                var line = doc.getLine(i);
                var m = line.match(re);
                deleteRange.start.row = i;
                deleteRange.end.row = i;
                deleteRange.end.column = m[0].length;
                doc.replace(deleteRange, m[1]);
            }
        }
        else {
            doc.indentRows(startRow, endRow, "#");
        }
    };

    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;
    };

    var outdents = {
        "pass": 1,
        "return": 1,
        "raise": 1,
        "break": 1,
        "continue": 1
    };

    this.checkOutdent = function(state, line, input) {
        if (input !== "\r\n" && input !== "\r" && input !== "\n")
            return false;

        var tokens = this.$tokenizer.getLineTokens(line.trim(), state).tokens;

        if (!tokens)
            return false;

        // ignore trailing comments
        do {
            var last = tokens.pop();
        } while (last && (last.type == "comment" || (last.type == "text" && last.value.match(/^\s+$/))));

        if (!last)
            return false;

        return (last.type == "keyword" && outdents[last.value]);
    };

    this.autoOutdent = function(state, doc, row) {
        // outdenting in sh is slightly different because it always applies
        // to the next line and only of a new line is inserted

        row += 1;
        var indent = this.$getIndent(doc.getLine(row));
        var tab = doc.getTabString();
        if (indent.slice(-tab.length) == tab)
            doc.remove(new Range(row, indent.length-tab.length, row, indent.length));
    };

}).call(Mode.prototype);

exports.Mode = Mode;
});

ace.define('ace/mode/sh_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 ShHighlightRules = function() {

    var reservedKeywords = (
        '!|{|}|case|do|done|elif|else|'+
        'esac|fi|for|if|in|then|until|while|'+
        '&|;|export|local|read|typeset|unset|'+
        'elif|select|set'
    );

    var languageConstructs = (
        '[|]|alias|bg|bind|break|builtin|'+
         'cd|command|compgen|complete|continue|'+
         'dirs|disown|echo|enable|eval|exec|'+
         'exit|fc|fg|getopts|hash|help|history|'+
         'jobs|kill|let|logout|popd|printf|pushd|'+
         'pwd|return|set|shift|shopt|source|'+
         'suspend|test|times|trap|type|ulimit|'+
         'umask|unalias|wait'
    );

    var keywordMapper = this.createKeywordMapper({
        "keyword": reservedKeywords,
        "constant.language": languageConstructs,
        "invalid.deprecated": "debugger"
    }, "identifier");

    var integer = "(?:(?:[1-9]\\d*)|(?:0))";
    // var integer = "(?:" + decimalInteger + ")";

    var fraction = "(?:\\.\\d+)";
    var intPart = "(?:\\d+)";
    var pointFloat = "(?:(?:" + intPart + "?" + fraction + ")|(?:" + intPart + "\\.))";
    var exponentFloat = "(?:(?:" + pointFloat + "|" +  intPart + ")" + ")";
    var floatNumber = "(?:" + exponentFloat + "|" + pointFloat + ")";
    var fileDescriptor = "(?:&" + intPart + ")";

    var variableName = "[a-zA-Z][a-zA-Z0-9_]*";
    var variable = "(?:(?:\\$" + variableName + ")|(?:" + variableName + "=))";

    var builtinVariable = "(?:\\$(?:SHLVL|\\$|\\!|\\?))";

    var func = "(?:" + variableName + "\\s*\\(\\))";

    this.$rules = {
        "start" : [ {
            token : "comment",
            regex : "#.*$"
        }, {
            token : "string",           // " string
            regex : '"(?:[^\\\\]|\\\\.)*?"'
        }, {
            token : "variable.language",
            regex : builtinVariable
        }, {
            token : "variable",
            regex : variable
        }, {
            token : "support.function",
            regex : func,
        }, {
            token : "support.function",
            regex : fileDescriptor
        }, {
            token : "string",           // ' string
            regex : "'(?:[^\\\\]|\\\\.)*?'"
        }, {
            token : "constant.numeric", // float
            regex : floatNumber
        }, {
            token : "constant.numeric", // integer
            regex : integer + "\\b"
        }, {
            token : keywordMapper,
            regex : "[a-zA-Z_$][a-zA-Z0-9_$]*\\b"
        }, {
            token : "keyword.operator",
            regex : "\\+|\\-|\\*|\\*\\*|\\/|\\/\\/|~|<|>|<=|=>|=|!="
        }, {
            token : "paren.lparen",
            regex : "[\\[\\(\\{]"
        }, {
            token : "paren.rparen",
            regex : "[\\]\\)\\}]"
        }, {
            token : "text",
            regex : "\\s+"
        } ]
    };
};

oop.inherits(ShHighlightRules, TextHighlightRules);

exports.ShHighlightRules = ShHighlightRules;
});