/* ***** BEGIN LICENSE BLOCK *****
 * Distributed under the BSD license:
 *
 * Copyright (c) 2012, Ajax.org B.V.
 * All rights reserved.
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 * 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
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/* This file was autogenerated from tm bundles\haskell.tmbundle\Syntaxes\Haskell.plist (uuid: ) */
/****************************************************************************************
 * IT MIGHT NOT BE PERFECT ...But it's a good start from an existing *.tmlanguage file. *
 * fileTypes                                                                            *
 ****************************************************************************************/

define(function (require, exports, module) {
    "use strict";

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

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

        this.$rules = {
            start: [{
                token: ['punctuation.definition.entity.haskell',
                    'keyword.operator.function.infix.haskell',
                    'punctuation.definition.entity.haskell'],
                regex: '(`)([a-zA-Z_\']*?)(`)',
                comment: 'In case this regex seems unusual for an infix operator, note that Haskell allows any ordinary function application (elem 4 [1..10]) to be rewritten as an infix expression (4 `elem` [1..10]).'
            },
                {token: 'constant.language.unit.haskell', regex: '\\(\\)'},
                {
                    token: 'constant.language.empty-list.haskell',
                    regex: '\\[\\]'
                },
                {
                    token: 'keyword.other.haskell',
                    regex: '\\bmodule\\b',
                    push: [{token: 'keyword.other.haskell', regex: '\\bwhere\\b', next: 'pop'},
                        {include: '#module_name'},
                        {include: '#module_exports'},
                        {token: 'invalid', regex: '[a-z]+'},
                        {defaultToken: 'meta.declaration.module.haskell'}]
                },
                {
                    token: 'keyword.other.haskell',
                    regex: '\\bclass\\b',
                    push: [{
                        token: 'keyword.other.haskell',
                        regex: '\\bwhere\\b',
                        next: 'pop'
                    },
                        {
                            token: 'support.class.prelude.haskell',
                            regex: '\\b(?:Monad|Functor|Eq|Ord|Read|Show|Num|(?:Frac|Ra)tional|Enum|Bounded|Real(?:Frac|Float)?|Integral|Floating)\\b'
                        },
                        {
                            token: 'entity.other.inherited-class.haskell',
                            regex: '[A-Z][A-Za-z_\']*'
                        },
                        {
                            token: 'variable.other.generic-type.haskell',
                            regex: '\\b[a-z][a-zA-Z0-9_\']*\\b'
                        },
                        {defaultToken: 'meta.declaration.class.haskell'}]
                },
                {
                    token: 'keyword.other.haskell',
                    regex: '\\binstance\\b',
                    push: [{
                        token: 'keyword.other.haskell',
                        regex: '\\bwhere\\b|$',
                        next: 'pop'
                    },
                        {include: '#type_signature'},
                        {defaultToken: 'meta.declaration.instance.haskell'}]
                },
                {
                    token: 'keyword.other.haskell',
                    regex: 'import',
                    push: [{token: 'meta.import.haskell', regex: '$|;|^', next: 'pop'},
                        {token: 'keyword.other.haskell', regex: 'qualified|as|hiding'},
                        {include: '#module_name'},
                        {include: '#module_exports'},
                        {defaultToken: 'meta.import.haskell'}]
                },
                {
                    token: ['keyword.other.haskell', 'meta.deriving.haskell'],
                    regex: '(deriving)(\\s*\\()',
                    push: [{token: 'meta.deriving.haskell', regex: '\\)', next: 'pop'},
                        {
                            token: 'entity.other.inherited-class.haskell',
                            regex: '\\b[A-Z][a-zA-Z_\']*'
                        },
                        {defaultToken: 'meta.deriving.haskell'}]
                },
                {
                    token: 'keyword.other.haskell',
                    regex: '\\b(?:deriving|where|data|type|case|of|let|in|newtype|default)\\b'
                },
                {token: 'keyword.operator.haskell', regex: '\\binfix[lr]?\\b'},
                {
                    token: 'keyword.control.haskell',
                    regex: '\\b(?:do|if|then|else)\\b'
                },
                {
                    token: 'constant.numeric.float.haskell',
                    regex: '\\b(?:[0-9]+\\.[0-9]+(?:[eE][+-]?[0-9]+)?|[0-9]+[eE][+-]?[0-9]+)\\b',
                    comment: 'Floats are always decimal'
                },
                {
                    token: 'constant.numeric.haskell',
                    regex: '\\b(?:[0-9]+|0(?:[xX][0-9a-fA-F]+|[oO][0-7]+))\\b'
                },
                {
                    token: ['meta.preprocessor.c',
                        'punctuation.definition.preprocessor.c',
                        'meta.preprocessor.c'],
                    regex: '^(\\s*)(#)(\\s*\\w+)',
                    comment: 'In addition to Haskell\'s "native" syntax, GHC permits the C preprocessor to be run on a source file.'
                },
                {include: '#pragma'},
                {
                    token: 'punctuation.definition.string.begin.haskell',
                    regex: '"',
                    push: [{
                        token: 'punctuation.definition.string.end.haskell',
                        regex: '"',
                        next: 'pop'
                    },
                        {
                            token: 'constant.character.escape.haskell',
                            regex: '\\\\(?:NUL|SOH|STX|ETX|EOT|ENQ|ACK|BEL|BS|HT|LF|VT|FF|CR|SO|SI|DLE|DC1|DC2|DC3|DC4|NAK|SYN|ETB|CAN|EM|SUB|ESC|FS|GS|RS|US|SP|DEL|[abfnrtv\\\\\\"\'\\&])'
                        },
                        {
                            token: 'constant.character.escape.octal.haskell',
                            regex: '\\\\o[0-7]+|\\\\x[0-9A-Fa-f]+|\\\\[0-9]+'
                        },
                        {
                            token: 'constant.character.escape.control.haskell',
                            regex: '\\^[A-Z@\\[\\]\\\\\\^_]'
                        },
                        {defaultToken: 'string.quoted.double.haskell'}]
                },
                {
                    token: ['punctuation.definition.string.begin.haskell',
                        'string.quoted.single.haskell',
                        'constant.character.escape.haskell',
                        'constant.character.escape.octal.haskell',
                        'constant.character.escape.hexadecimal.haskell',
                        'constant.character.escape.control.haskell',
                        'punctuation.definition.string.end.haskell'],
                    regex: '(\')(?:([\\ -\\[\\]-~])|(\\\\(?:NUL|SOH|STX|ETX|EOT|ENQ|ACK|BEL|BS|HT|LF|VT|FF|CR|SO|SI|DLE|DC1|DC2|DC3|DC4|NAK|SYN|ETB|CAN|EM|SUB|ESC|FS|GS|RS|US|SP|DEL|[abfnrtv\\\\\\"\'\\&]))|(\\\\o[0-7]+)|(\\\\x[0-9A-Fa-f]+)|(\\^[A-Z@\\[\\]\\\\\\^_]))(\')'
                },
                {
                    token: ['meta.function.type-declaration.haskell',
                        'entity.name.function.haskell',
                        'meta.function.type-declaration.haskell',
                        'keyword.other.double-colon.haskell'],
                    regex: '^(\\s*)([a-z_][a-zA-Z0-9_\']*|\\([|!%$+\\-.,=</>]+\\))(\\s*)(::)',
                    push: [{
                        token: 'meta.function.type-declaration.haskell',
                        regex: '$',
                        next: 'pop'
                    },
                        {include: '#type_signature'},
                        {defaultToken: 'meta.function.type-declaration.haskell'}]
                },
                {
                    token: 'support.constant.haskell',
                    regex: '\\b(?:Just|Nothing|Left|Right|True|False|LT|EQ|GT|\\(\\)|\\[\\])\\b'
                },
                {token: 'constant.other.haskell', regex: '\\b[A-Z]\\w*\\b'},
                {include: '#comments'},
                {
                    token: 'support.function.prelude.haskell',
                    regex: '\\b(?:abs|acos|acosh|all|and|any|appendFile|applyM|asTypeOf|asin|asinh|atan|atan2|atanh|break|catch|ceiling|compare|concat|concatMap|const|cos|cosh|curry|cycle|decodeFloat|div|divMod|drop|dropWhile|elem|encodeFloat|enumFrom|enumFromThen|enumFromThenTo|enumFromTo|error|even|exp|exponent|fail|filter|flip|floatDigits|floatRadix|floatRange|floor|fmap|foldl|foldl1|foldr|foldr1|fromEnum|fromInteger|fromIntegral|fromRational|fst|gcd|getChar|getContents|getLine|head|id|init|interact|ioError|isDenormalized|isIEEE|isInfinite|isNaN|isNegativeZero|iterate|last|lcm|length|lex|lines|log|logBase|lookup|map|mapM|mapM_|max|maxBound|maximum|maybe|min|minBound|minimum|mod|negate|not|notElem|null|odd|or|otherwise|pi|pred|print|product|properFraction|putChar|putStr|putStrLn|quot|quotRem|read|readFile|readIO|readList|readLn|readParen|reads|readsPrec|realToFrac|recip|rem|repeat|replicate|return|reverse|round|scaleFloat|scanl|scanl1|scanr|scanr1|seq|sequence|sequence_|show|showChar|showList|showParen|showString|shows|showsPrec|significand|signum|sin|sinh|snd|span|splitAt|sqrt|subtract|succ|sum|tail|take|takeWhile|tan|tanh|toEnum|toInteger|toRational|truncate|uncurry|undefined|unlines|until|unwords|unzip|unzip3|userError|words|writeFile|zip|zip3|zipWith|zipWith3)\\b'
                },
                {include: '#infix_op'},
                {
                    token: 'keyword.operator.haskell',
                    regex: '[|!%$?~+:\\-.=</>\\\\]+',
                    comment: 'In case this regex seems overly general, note that Haskell permits the definition of new operators which can be nearly any string of punctuation characters, such as $%^&*.'
                },
                {token: 'punctuation.separator.comma.haskell', regex: ','}],
            '#block_comment': [{
                token: 'punctuation.definition.comment.haskell',
                regex: '\\{-(?!#)',
                push: [{include: '#block_comment'},
                    {
                        token: 'punctuation.definition.comment.haskell',
                        regex: '-\\}',
                        next: 'pop'
                    },
                    {defaultToken: 'comment.block.haskell'}]
            }],
            '#comments': [{
                token: 'punctuation.definition.comment.haskell',
                regex: '--.*',
                push_: [{
                    token: 'comment.line.double-dash.haskell',
                    regex: '$',
                    next: 'pop'
                },
                    {defaultToken: 'comment.line.double-dash.haskell'}]
            },
                {include: '#block_comment'}],
            '#infix_op': [{
                token: 'entity.name.function.infix.haskell',
                regex: '\\([|!%$+:\\-.=</>]+\\)|\\(,+\\)'
            }],
            '#module_exports': [{
                token: 'meta.declaration.exports.haskell',
                regex: '\\(',
                push: [{
                    token: 'meta.declaration.exports.haskell.end',
                    regex: '\\)',
                    next: 'pop'
                },
                    {
                        token: 'entity.name.function.haskell',
                        regex: '\\b[a-z][a-zA-Z_\']*'
                    },
                    {token: 'storage.type.haskell', regex: '\\b[A-Z][A-Za-z_\']*'},
                    {token: 'punctuation.separator.comma.haskell', regex: ','},
                    {include: '#infix_op'},
                    {
                        token: 'meta.other.unknown.haskell',
                        regex: '\\(.*?\\)',
                        comment: 'So named because I don\'t know what to call this.'
                    },
                    {defaultToken: 'meta.declaration.exports.haskell.end'}]
            }],
            '#module_name': [{
                token: 'support.other.module.haskell',
                regex: '[A-Z][A-Za-z._\']*'
            }],
            '#pragma': [{
                token: 'meta.preprocessor.haskell',
                regex: '\\{-#',
                push: [{
                    token: 'meta.preprocessor.haskell',
                    regex: '#-\\}',
                    next: 'pop'
                },
                    {
                        token: 'keyword.other.preprocessor.haskell',
                        regex: '\\b(?:LANGUAGE|UNPACK|INLINE)\\b'
                    },
                    {defaultToken: 'meta.preprocessor.haskell'}]
            }],
            '#type_signature': [{
                token: ['meta.class-constraint.haskell',
                    'entity.other.inherited-class.haskell',
                    'meta.class-constraint.haskell',
                    'variable.other.generic-type.haskell',
                    'meta.class-constraint.haskell',
                    'keyword.other.big-arrow.haskell'],
                regex: '(\\(\\s*)([A-Z][A-Za-z]*)(\\s+)([a-z][A-Za-z_\']*)(\\)\\s*)(=>)'
            },
                {include: '#pragma'},
                {token: 'keyword.other.arrow.haskell', regex: '->'},
                {token: 'keyword.other.big-arrow.haskell', regex: '=>'},
                {
                    token: 'support.type.prelude.haskell',
                    regex: '\\b(?:Int(?:eger)?|Maybe|Either|Bool|Float|Double|Char|String|Ordering|ShowS|ReadS|FilePath|IO(?:Error)?)\\b'
                },
                {
                    token: 'variable.other.generic-type.haskell',
                    regex: '\\b[a-z][a-zA-Z0-9_\']*\\b'
                },
                {
                    token: 'storage.type.haskell',
                    regex: '\\b[A-Z][a-zA-Z0-9_\']*\\b'
                },
                {token: 'support.constant.unit.haskell', regex: '\\(\\)'},
                {include: '#comments'}]
        }

        this.normalizeRules();
    };

    HaskellHighlightRules.metaData = {
        fileTypes: ['hs'],
        keyEquivalent: '^~H',
        name: 'Haskell',
        scopeName: 'source.haskell'
    }


    oop.inherits(HaskellHighlightRules, TextHighlightRules);

    exports.HaskellHighlightRules = HaskellHighlightRules;
});
