ThirdParty/Pygments/pygments/lexers/compiled.py

# -*- coding: utf-8 -*-
"""
    pygments.lexers.compiled
    ~~~~~~~~~~~~~~~~~~~~~~~~

    Lexers for compiled languages.

    :copyright: Copyright 2006-2010 by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

import re

from pygments.scanner import Scanner
from pygments.lexer import Lexer, RegexLexer, include, bygroups, using, \
                           this, combined
from pygments.util import get_bool_opt, get_list_opt
from pygments.token import \
     Text, Comment, Operator, Keyword, Name, String, Number, Punctuation, \
     Error

# backwards compatibility
from pygments.lexers.functional import OcamlLexer

__all__ = ['CLexer', 'CppLexer', 'DLexer', 'DelphiLexer', 'JavaLexer',
           'ScalaLexer', 'DylanLexer', 'OcamlLexer', 'ObjectiveCLexer',
           'FortranLexer', 'GLShaderLexer', 'PrologLexer', 'CythonLexer',
           'ValaLexer', 'OocLexer', 'GoLexer', 'FelixLexer', 'AdaLexer',
           'Modula2Lexer', 'BlitzMaxLexer']


class CLexer(RegexLexer):
    """
    For C source code with preprocessor directives.
    """
    name = 'C'
    aliases = ['c']
    filenames = ['*.c', '*.h']
    mimetypes = ['text/x-chdr', 'text/x-csrc']

    #: optional Comment or Whitespace
    _ws = r'(?:\s|//.*?\n|/[*].*?[*]/)+'

    tokens = {
        'whitespace': [
            # preprocessor directives: without whitespace
            ('^#if\s+0', Comment.Preproc, 'if0'),
            ('^#', Comment.Preproc, 'macro'),
            # or with whitespace
            ('^' + _ws + r'#if\s+0', Comment.Preproc, 'if0'),
            ('^' + _ws + '#', Comment.Preproc, 'macro'),
            (r'^(\s*)([a-zA-Z_][a-zA-Z0-9_]*:(?!:))', bygroups(Text, Name.Label)),
            (r'\n', Text),
            (r'\s+', Text),
            (r'\\\n', Text), # line continuation
            (r'//(\n|(.|\n)*?[^\\]\n)', Comment.Single),
            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
        ],
        'statements': [
            (r'L?"', String, 'string'),
            (r"L?'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'", String.Char),
            (r'(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*', Number.Float),
            (r'(\d+\.\d*|\.\d+|\d+[fF])[fF]?', Number.Float),
            (r'0x[0-9a-fA-F]+[LlUu]*', Number.Hex),
            (r'0[0-7]+[LlUu]*', Number.Oct),
            (r'\d+[LlUu]*', Number.Integer),
            (r'\*/', Error),
            (r'[~!%^&*+=|?:<>/-]', Operator),
            (r'[()\[\],.]', Punctuation),
            (r'\b(case)(.+?)(:)', bygroups(Keyword, using(this), Text)),
            (r'(auto|break|case|const|continue|default|do|else|enum|extern|'
             r'for|goto|if|register|restricted|return|sizeof|static|struct|'
             r'switch|typedef|union|volatile|virtual|while)\b', Keyword),
            (r'(int|long|float|short|double|char|unsigned|signed|void)\b',
             Keyword.Type),
            (r'(_{0,2}inline|naked|restrict|thread|typename)\b', Keyword.Reserved),
            (r'__(asm|int8|based|except|int16|stdcall|cdecl|fastcall|int32|'
             r'declspec|finally|int64|try|leave)\b', Keyword.Reserved),
            (r'(true|false|NULL)\b', Name.Builtin),
            ('[a-zA-Z_][a-zA-Z0-9_]*', Name),
        ],
        'root': [
            include('whitespace'),
            # functions
            (r'((?:[a-zA-Z0-9_*\s])+?(?:\s|[*]))'    # return arguments
             r'([a-zA-Z_][a-zA-Z0-9_]*)'             # method name
             r'(\s*\([^;]*?\))'                      # signature
             r'(' + _ws + r')({)',
             bygroups(using(this), Name.Function, using(this), using(this),
                      Punctuation),
             'function'),
            # function declarations
            (r'((?:[a-zA-Z0-9_*\s])+?(?:\s|[*]))'    # return arguments
             r'([a-zA-Z_][a-zA-Z0-9_]*)'             # method name
             r'(\s*\([^;]*?\))'                      # signature
             r'(' + _ws + r')(;)',
             bygroups(using(this), Name.Function, using(this), using(this),
                      Punctuation)),
            ('', Text, 'statement'),
        ],
        'statement' : [
            include('whitespace'),
            include('statements'),
            ('[{}]', Punctuation),
            (';', Punctuation, '#pop'),
        ],
        'function': [
            include('whitespace'),
            include('statements'),
            (';', Punctuation),
            ('{', Punctuation, '#push'),
            ('}', Punctuation, '#pop'),
        ],
        'string': [
            (r'"', String, '#pop'),
            (r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|[0-7]{1,3})', String.Escape),
            (r'[^\\"\n]+', String), # all other characters
            (r'\\\n', String), # line continuation
            (r'\\', String), # stray backslash
        ],
        'macro': [
            (r'[^/\n]+', Comment.Preproc),
            (r'/[*](.|\n)*?[*]/', Comment.Multiline),
            (r'//.*?\n', Comment.Single, '#pop'),
            (r'/', Comment.Preproc),
            (r'(?<=\\)\n', Comment.Preproc),
            (r'\n', Comment.Preproc, '#pop'),
        ],
        'if0': [
            (r'^\s*#if.*?(?<!\\)\n', Comment.Preproc, '#push'),
            (r'^\s*#el(?:se|if).*\n', Comment.Preproc, '#pop'),
            (r'^\s*#endif.*?(?<!\\)\n', Comment.Preproc, '#pop'),
            (r'.*?\n', Comment),
        ]
    }

    stdlib_types = ['size_t', 'ssize_t', 'off_t', 'wchar_t', 'ptrdiff_t',
            'sig_atomic_t', 'fpos_t', 'clock_t', 'time_t', 'va_list',
            'jmp_buf', 'FILE', 'DIR', 'div_t', 'ldiv_t', 'mbstate_t',
            'wctrans_t', 'wint_t', 'wctype_t']
    c99_types = ['_Bool', '_Complex', 'int8_t', 'int16_t', 'int32_t', 'int64_t',
            'uint8_t', 'uint16_t', 'uint32_t', 'uint64_t', 'int_least8_t',
            'int_least16_t', 'int_least32_t', 'int_least64_t',
            'uint_least8_t', 'uint_least16_t', 'uint_least32_t',
            'uint_least64_t', 'int_fast8_t', 'int_fast16_t', 'int_fast32_t',
            'int_fast64_t', 'uint_fast8_t', 'uint_fast16_t', 'uint_fast32_t',
            'uint_fast64_t', 'intptr_t', 'uintptr_t', 'intmax_t', 'uintmax_t']

    def __init__(self, **options):
        self.stdlibhighlighting = get_bool_opt(options,
                'stdlibhighlighting', True)
        self.c99highlighting = get_bool_opt(options,
                'c99highlighting', True)
        RegexLexer.__init__(self, **options)

    def get_tokens_unprocessed(self, text):
        for index, token, value in \
            RegexLexer.get_tokens_unprocessed(self, text):
            if token is Name:
                if self.stdlibhighlighting and value in self.stdlib_types:
                    token = Keyword.Type
                elif self.c99highlighting and value in self.c99_types:
                    token = Keyword.Type
            yield index, token, value

class CppLexer(RegexLexer):
    """
    For C++ source code with preprocessor directives.
    """
    name = 'C++'
    aliases = ['cpp', 'c++']
    filenames = ['*.cpp', '*.hpp', '*.c++', '*.h++', '*.cc', '*.hh', '*.cxx', '*.hxx']
    mimetypes = ['text/x-c++hdr', 'text/x-c++src']

    #: optional Comment or Whitespace
    _ws = r'(?:\s|//.*?\n|/[*].*?[*]/)+'

    tokens = {
        'root': [
            # preprocessor directives: without whitespace
            ('^#if\s+0', Comment.Preproc, 'if0'),
            ('^#', Comment.Preproc, 'macro'),
            # or with whitespace
            ('^' + _ws + r'#if\s+0', Comment.Preproc, 'if0'),
            ('^' + _ws + '#', Comment.Preproc, 'macro'),
            (r'\n', Text),
            (r'\s+', Text),
            (r'\\\n', Text), # line continuation
            (r'/(\\\n)?/(\n|(.|\n)*?[^\\]\n)', Comment.Single),
            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
            (r'[{}]', Punctuation),
            (r'L?"', String, 'string'),
            (r"L?'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'", String.Char),
            (r'(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[LlUu]*', Number.Float),
            (r'(\d+\.\d*|\.\d+|\d+[fF])[fF]?', Number.Float),
            (r'0x[0-9a-fA-F]+[LlUu]*', Number.Hex),
            (r'0[0-7]+[LlUu]*', Number.Oct),
            (r'\d+[LlUu]*', Number.Integer),
            (r'\*/', Error),
            (r'[~!%^&*+=|?:<>/-]', Operator),
            (r'[()\[\],.;]', Punctuation),
            (r'(asm|auto|break|case|catch|const|const_cast|continue|'
             r'default|delete|do|dynamic_cast|else|enum|explicit|export|'
             r'extern|for|friend|goto|if|mutable|namespace|new|operator|'
             r'private|protected|public|register|reinterpret_cast|return|'
             r'restrict|sizeof|static|static_cast|struct|switch|template|'
             r'this|throw|throws|try|typedef|typeid|typename|union|using|'
             r'volatile|virtual|while)\b', Keyword),
            (r'(class)(\s+)', bygroups(Keyword, Text), 'classname'),
            (r'(bool|int|long|float|short|double|char|unsigned|signed|'
             r'void|wchar_t)\b', Keyword.Type),
            (r'(_{0,2}inline|naked|thread)\b', Keyword.Reserved),
            (r'__(asm|int8|based|except|int16|stdcall|cdecl|fastcall|int32|'
             r'declspec|finally|int64|try|leave|wchar_t|w64|virtual_inheritance|'
             r'uuidof|unaligned|super|single_inheritance|raise|noop|'
             r'multiple_inheritance|m128i|m128d|m128|m64|interface|'
             r'identifier|forceinline|event|assume)\b', Keyword.Reserved),
            # Offload C++ extensions, http://offload.codeplay.com/
            (r'(__offload|__blockingoffload|__outer)\b', Keyword.Psuedo),
            (r'(true|false)\b', Keyword.Constant),
            (r'NULL\b', Name.Builtin),
            ('[a-zA-Z_][a-zA-Z0-9_]*:(?!:)', Name.Label),
            ('[a-zA-Z_][a-zA-Z0-9_]*', Name),
        ],
        'classname': [
            (r'[a-zA-Z_][a-zA-Z0-9_]*', Name.Class, '#pop'),
            # template specification
            (r'\s*(?=>)', Text, '#pop'),
        ],
        'string': [
            (r'"', String, '#pop'),
            (r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|[0-7]{1,3})', String.Escape),
            (r'[^\\"\n]+', String), # all other characters
            (r'\\\n', String), # line continuation
            (r'\\', String), # stray backslash
        ],
        'macro': [
            (r'[^/\n]+', Comment.Preproc),
            (r'/[*](.|\n)*?[*]/', Comment.Multiline),
            (r'//.*?\n', Comment.Single, '#pop'),
            (r'/', Comment.Preproc),
            (r'(?<=\\)\n', Comment.Preproc),
            (r'\n', Comment.Preproc, '#pop'),
        ],
        'if0': [
            (r'^\s*#if.*?(?<!\\)\n', Comment.Preproc, '#push'),
            (r'^\s*#endif.*?(?<!\\)\n', Comment.Preproc, '#pop'),
            (r'.*?\n', Comment),
        ]
    }


class DLexer(RegexLexer):
    """
    For D source.

    *New in Pygments 1.2.*
    """
    name = 'D'
    filenames = ['*.d', '*.di']
    aliases = ['d']
    mimetypes = ['text/x-dsrc']

    tokens = {
        'root': [
            (r'\n', Text),
            (r'\s+', Text),
            #(r'\\\n', Text), # line continuations
            # Comments
            (r'//(.*?)\n', Comment.Single),
            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
            (r'/\+', Comment.Multiline, 'nested_comment'),
            # Keywords
            (r'(abstract|alias|align|asm|assert|auto|body|break|case|cast'
             r'|catch|class|const|continue|debug|default|delegate|delete'
             r'|deprecated|do|else|enum|export|extern|finally|final'
             r'|foreach_reverse|foreach|for|function|goto|if|import|inout'
             r'|interface|invariant|in|is|lazy|mixin|module|new|nothrow|out'
             r'|override|package|pragma|private|protected|public|pure|ref|return'
             r'|scope|static|struct|super|switch|synchronized|template|this'
             r'|throw|try|typedef|typeid|typeof|union|unittest|version|volatile'
             r'|while|with|__traits)\b', Keyword
            ),
            (r'(bool|byte|cdouble|cent|cfloat|char|creal|dchar|double|float'
             r'|idouble|ifloat|int|ireal|long|real|short|ubyte|ucent|uint|ulong'
             r'|ushort|void|wchar)\b', Keyword.Type
            ),
            (r'(false|true|null)\b', Keyword.Constant),
            (r'macro\b', Keyword.Reserved),
            (r'(string|wstring|dstring)\b', Name.Builtin),
            # FloatLiteral
            # -- HexFloat
            (r'0[xX]([0-9a-fA-F_]*\.[0-9a-fA-F_]+|[0-9a-fA-F_]+)'
             r'[pP][+\-]?[0-9_]+[fFL]?[i]?', Number.Float),
            # -- DecimalFloat
            (r'[0-9_]+(\.[0-9_]+[eE][+\-]?[0-9_]+|'
             r'\.[0-9_]*|[eE][+\-]?[0-9_]+)[fFL]?[i]?', Number.Float),
            (r'\.(0|[1-9][0-9_]*)([eE][+\-]?[0-9_]+)?[fFL]?[i]?', Number.Float),
            # IntegerLiteral
            # -- Binary
            (r'0[Bb][01_]+', Number),
            # -- Octal
            (r'0[0-7_]+', Number.Oct),
            # -- Hexadecimal
            (r'0[xX][0-9a-fA-F_]+', Number.Hex),
            # -- Decimal
            (r'(0|[1-9][0-9_]*)([LUu]|Lu|LU|uL|UL)?', Number.Integer),
            # CharacterLiteral
            (r"""'(\\['"?\\abfnrtv]|\\x[0-9a-fA-F]{2}|\\[0-7]{1,3}"""
             r"""|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|\\&\w+;|.)'""",
             String.Char
            ),
            # StringLiteral
            # -- WysiwygString
            (r'r"[^"]*"[cwd]?', String),
            # -- AlternateWysiwygString
            (r'`[^`]*`[cwd]?', String),
            # -- DoubleQuotedString
            (r'"(\\\\|\\"|[^"])*"[cwd]?', String),
            # -- EscapeSequence
            (r"\\(['\"?\\abfnrtv]|x[0-9a-fA-F]{2}|[0-7]{1,3}"
             r"|u[0-9a-fA-F]{4}|U[0-9a-fA-F]{8}|&\w+;)",
             String
            ),
            # -- HexString
            (r'x"[0-9a-fA-F_\s]*"[cwd]?', String),
            # -- DelimitedString
            (r'q"\[', String, 'delimited_bracket'),
            (r'q"\(', String, 'delimited_parenthesis'),
            (r'q"<', String, 'delimited_angle'),
            (r'q"{', String, 'delimited_curly'),
            (r'q"([a-zA-Z_]\w*)\n.*?\n\1"', String),
            (r'q"(.).*?\1"', String),
            # -- TokenString
            (r'q{', String, 'token_string'),
            # Tokens
            (r'(~=|\^=|%=|\*=|==|!>=|!<=|!<>=|!<>|!<|!>|!=|>>>=|>>>|>>=|>>|>='
             r'|<>=|<>|<<=|<<|<=|\+\+|\+=|--|-=|\|\||\|=|&&|&=|\.\.\.|\.\.|/=)'
             r'|[/.&|\-+<>!()\[\]{}?,;:$=*%^~]', Punctuation
            ),
            # Identifier
            (r'[a-zA-Z_]\w*', Name),
        ],
        'nested_comment': [
            (r'[^+/]+', Comment.Multiline),
            (r'/\+', Comment.Multiline, '#push'),
            (r'\+/', Comment.Multiline, '#pop'),
            (r'[+/]', Comment.Multiline),
        ],
        'token_string': [
            (r'{', Punctuation, 'token_string_nest'),
            (r'}', String, '#pop'),
            include('root'),
        ],
        'token_string_nest': [
            (r'{', Punctuation, '#push'),
            (r'}', Punctuation, '#pop'),
            include('root'),
        ],
        'delimited_bracket': [
            (r'[^\[\]]+', String),
            (r'\[', String, 'delimited_inside_bracket'),
            (r'\]"', String, '#pop'),
        ],
        'delimited_inside_bracket': [
            (r'[^\[\]]+', String),
            (r'\[', String, '#push'),
            (r'\]', String, '#pop'),
        ],
        'delimited_parenthesis': [
            (r'[^\(\)]+', String),
            (r'\(', String, 'delimited_inside_parenthesis'),
            (r'\)"', String, '#pop'),
        ],
        'delimited_inside_parenthesis': [
            (r'[^\(\)]+', String),
            (r'\(', String, '#push'),
            (r'\)', String, '#pop'),
        ],
        'delimited_angle': [
            (r'[^<>]+', String),
            (r'<', String, 'delimited_inside_angle'),
            (r'>"', String, '#pop'),
        ],
        'delimited_inside_angle': [
            (r'[^<>]+', String),
            (r'<', String, '#push'),
            (r'>', String, '#pop'),
        ],
        'delimited_curly': [
            (r'[^{}]+', String),
            (r'{', String, 'delimited_inside_curly'),
            (r'}"', String, '#pop'),
        ],
        'delimited_inside_curly': [
            (r'[^{}]+', String),
            (r'{', String, '#push'),
            (r'}', String, '#pop'),
        ],
    }


class DelphiLexer(Lexer):
    """
    For `Delphi <http://www.borland.com/delphi/>`_ (Borland Object Pascal),
    Turbo Pascal and Free Pascal source code.

    Additional options accepted:

    `turbopascal`
        Highlight Turbo Pascal specific keywords (default: ``True``).
    `delphi`
        Highlight Borland Delphi specific keywords (default: ``True``).
    `freepascal`
        Highlight Free Pascal specific keywords (default: ``True``).
    `units`
        A list of units that should be considered builtin, supported are
        ``System``, ``SysUtils``, ``Classes`` and ``Math``.
        Default is to consider all of them builtin.
    """
    name = 'Delphi'
    aliases = ['delphi', 'pas', 'pascal', 'objectpascal']
    filenames = ['*.pas']
    mimetypes = ['text/x-pascal']

    TURBO_PASCAL_KEYWORDS = [
        'absolute', 'and', 'array', 'asm', 'begin', 'break', 'case',
        'const', 'constructor', 'continue', 'destructor', 'div', 'do',
        'downto', 'else', 'end', 'file', 'for', 'function', 'goto',
        'if', 'implementation', 'in', 'inherited', 'inline', 'interface',
        'label', 'mod', 'nil', 'not', 'object', 'of', 'on', 'operator',
        'or', 'packed', 'procedure', 'program', 'record', 'reintroduce',
        'repeat', 'self', 'set', 'shl', 'shr', 'string', 'then', 'to',
        'type', 'unit', 'until', 'uses', 'var', 'while', 'with', 'xor'
    ]

    DELPHI_KEYWORDS = [
        'as', 'class', 'except', 'exports', 'finalization', 'finally',
        'initialization', 'is', 'library', 'on', 'property', 'raise',
        'threadvar', 'try'
    ]

    FREE_PASCAL_KEYWORDS = [
        'dispose', 'exit', 'false', 'new', 'true'
    ]

    BLOCK_KEYWORDS = set([
        'begin', 'class', 'const', 'constructor', 'destructor', 'end',
        'finalization', 'function', 'implementation', 'initialization',
        'label', 'library', 'operator', 'procedure', 'program', 'property',
        'record', 'threadvar', 'type', 'unit', 'uses', 'var'
    ])

    FUNCTION_MODIFIERS = set([
        'alias', 'cdecl', 'export', 'inline', 'interrupt', 'nostackframe',
        'pascal', 'register', 'safecall', 'softfloat', 'stdcall',
        'varargs', 'name', 'dynamic', 'near', 'virtual', 'external',
        'override', 'assembler'
    ])

    # XXX: those aren't global. but currently we know no way for defining
    #      them just for the type context.
    DIRECTIVES = set([
        'absolute', 'abstract', 'assembler', 'cppdecl', 'default', 'far',
        'far16', 'forward', 'index', 'oldfpccall', 'private', 'protected',
        'published', 'public'
    ])

    BUILTIN_TYPES = set([
        'ansichar', 'ansistring', 'bool', 'boolean', 'byte', 'bytebool',
        'cardinal', 'char', 'comp', 'currency', 'double', 'dword',
        'extended', 'int64', 'integer', 'iunknown', 'longbool', 'longint',
        'longword', 'pansichar', 'pansistring', 'pbool', 'pboolean',
        'pbyte', 'pbytearray', 'pcardinal', 'pchar', 'pcomp', 'pcurrency',
        'pdate', 'pdatetime', 'pdouble', 'pdword', 'pextended', 'phandle',
        'pint64', 'pinteger', 'plongint', 'plongword', 'pointer',
        'ppointer', 'pshortint', 'pshortstring', 'psingle', 'psmallint',
        'pstring', 'pvariant', 'pwidechar', 'pwidestring', 'pword',
        'pwordarray', 'pwordbool', 'real', 'real48', 'shortint',
        'shortstring', 'single', 'smallint', 'string', 'tclass', 'tdate',
        'tdatetime', 'textfile', 'thandle', 'tobject', 'ttime', 'variant',
        'widechar', 'widestring', 'word', 'wordbool'
    ])

    BUILTIN_UNITS = {
        'System': [
            'abs', 'acquireexceptionobject', 'addr', 'ansitoutf8',
            'append', 'arctan', 'assert', 'assigned', 'assignfile',
            'beginthread', 'blockread', 'blockwrite', 'break', 'chdir',
            'chr', 'close', 'closefile', 'comptocurrency', 'comptodouble',
            'concat', 'continue', 'copy', 'cos', 'dec', 'delete',
            'dispose', 'doubletocomp', 'endthread', 'enummodules',
            'enumresourcemodules', 'eof', 'eoln', 'erase', 'exceptaddr',
            'exceptobject', 'exclude', 'exit', 'exp', 'filepos', 'filesize',
            'fillchar', 'finalize', 'findclasshinstance', 'findhinstance',
            'findresourcehinstance', 'flush', 'frac', 'freemem',
            'get8087cw', 'getdir', 'getlasterror', 'getmem',
            'getmemorymanager', 'getmodulefilename', 'getvariantmanager',
            'halt', 'hi', 'high', 'inc', 'include', 'initialize', 'insert',
            'int', 'ioresult', 'ismemorymanagerset', 'isvariantmanagerset',
            'length', 'ln', 'lo', 'low', 'mkdir', 'move', 'new', 'odd',
            'olestrtostring', 'olestrtostrvar', 'ord', 'paramcount',
            'paramstr', 'pi', 'pos', 'pred', 'ptr', 'pucs4chars', 'random',
            'randomize', 'read', 'readln', 'reallocmem',
            'releaseexceptionobject', 'rename', 'reset', 'rewrite', 'rmdir',
            'round', 'runerror', 'seek', 'seekeof', 'seekeoln',
            'set8087cw', 'setlength', 'setlinebreakstyle',
            'setmemorymanager', 'setstring', 'settextbuf',
            'setvariantmanager', 'sin', 'sizeof', 'slice', 'sqr', 'sqrt',
            'str', 'stringofchar', 'stringtoolestr', 'stringtowidechar',
            'succ', 'swap', 'trunc', 'truncate', 'typeinfo',
            'ucs4stringtowidestring', 'unicodetoutf8', 'uniquestring',
            'upcase', 'utf8decode', 'utf8encode', 'utf8toansi',
            'utf8tounicode', 'val', 'vararrayredim', 'varclear',
            'widecharlentostring', 'widecharlentostrvar',
            'widechartostring', 'widechartostrvar',
            'widestringtoucs4string', 'write', 'writeln'
        ],
        'SysUtils': [
            'abort', 'addexitproc', 'addterminateproc', 'adjustlinebreaks',
            'allocmem', 'ansicomparefilename', 'ansicomparestr',
            'ansicomparetext', 'ansidequotedstr', 'ansiextractquotedstr',
            'ansilastchar', 'ansilowercase', 'ansilowercasefilename',
            'ansipos', 'ansiquotedstr', 'ansisamestr', 'ansisametext',
            'ansistrcomp', 'ansistricomp', 'ansistrlastchar', 'ansistrlcomp',
            'ansistrlicomp', 'ansistrlower', 'ansistrpos', 'ansistrrscan',
            'ansistrscan', 'ansistrupper', 'ansiuppercase',
            'ansiuppercasefilename', 'appendstr', 'assignstr', 'beep',
            'booltostr', 'bytetocharindex', 'bytetocharlen', 'bytetype',
            'callterminateprocs', 'changefileext', 'charlength',
            'chartobyteindex', 'chartobytelen', 'comparemem', 'comparestr',
            'comparetext', 'createdir', 'createguid', 'currentyear',
            'currtostr', 'currtostrf', 'date', 'datetimetofiledate',
            'datetimetostr', 'datetimetostring', 'datetimetosystemtime',
            'datetimetotimestamp', 'datetostr', 'dayofweek', 'decodedate',
            'decodedatefully', 'decodetime', 'deletefile', 'directoryexists',
            'diskfree', 'disksize', 'disposestr', 'encodedate', 'encodetime',
            'exceptionerrormessage', 'excludetrailingbackslash',
            'excludetrailingpathdelimiter', 'expandfilename',
            'expandfilenamecase', 'expanduncfilename', 'extractfiledir',
            'extractfiledrive', 'extractfileext', 'extractfilename',
            'extractfilepath', 'extractrelativepath', 'extractshortpathname',
            'fileage', 'fileclose', 'filecreate', 'filedatetodatetime',
            'fileexists', 'filegetattr', 'filegetdate', 'fileisreadonly',
            'fileopen', 'fileread', 'filesearch', 'fileseek', 'filesetattr',
            'filesetdate', 'filesetreadonly', 'filewrite', 'finalizepackage',
            'findclose', 'findcmdlineswitch', 'findfirst', 'findnext',
            'floattocurr', 'floattodatetime', 'floattodecimal', 'floattostr',
            'floattostrf', 'floattotext', 'floattotextfmt', 'fmtloadstr',
            'fmtstr', 'forcedirectories', 'format', 'formatbuf', 'formatcurr',
            'formatdatetime', 'formatfloat', 'freeandnil', 'getcurrentdir',
            'getenvironmentvariable', 'getfileversion', 'getformatsettings',
            'getlocaleformatsettings', 'getmodulename', 'getpackagedescription',
            'getpackageinfo', 'gettime', 'guidtostring', 'incamonth',
            'includetrailingbackslash', 'includetrailingpathdelimiter',
            'incmonth', 'initializepackage', 'interlockeddecrement',
            'interlockedexchange', 'interlockedexchangeadd',
            'interlockedincrement', 'inttohex', 'inttostr', 'isdelimiter',
            'isequalguid', 'isleapyear', 'ispathdelimiter', 'isvalidident',
            'languages', 'lastdelimiter', 'loadpackage', 'loadstr',
            'lowercase', 'msecstotimestamp', 'newstr', 'nextcharindex', 'now',
            'outofmemoryerror', 'quotedstr', 'raiselastoserror',
            'raiselastwin32error', 'removedir', 'renamefile', 'replacedate',
            'replacetime', 'safeloadlibrary', 'samefilename', 'sametext',
            'setcurrentdir', 'showexception', 'sleep', 'stralloc', 'strbufsize',
            'strbytetype', 'strcat', 'strcharlength', 'strcomp', 'strcopy',
            'strdispose', 'strecopy', 'strend', 'strfmt', 'stricomp',
            'stringreplace', 'stringtoguid', 'strlcat', 'strlcomp', 'strlcopy',
            'strlen', 'strlfmt', 'strlicomp', 'strlower', 'strmove', 'strnew',
            'strnextchar', 'strpas', 'strpcopy', 'strplcopy', 'strpos',
            'strrscan', 'strscan', 'strtobool', 'strtobooldef', 'strtocurr',
            'strtocurrdef', 'strtodate', 'strtodatedef', 'strtodatetime',
            'strtodatetimedef', 'strtofloat', 'strtofloatdef', 'strtoint',
            'strtoint64', 'strtoint64def', 'strtointdef', 'strtotime',
            'strtotimedef', 'strupper', 'supports', 'syserrormessage',
            'systemtimetodatetime', 'texttofloat', 'time', 'timestamptodatetime',
            'timestamptomsecs', 'timetostr', 'trim', 'trimleft', 'trimright',
            'tryencodedate', 'tryencodetime', 'tryfloattocurr', 'tryfloattodatetime',
            'trystrtobool', 'trystrtocurr', 'trystrtodate', 'trystrtodatetime',
            'trystrtofloat', 'trystrtoint', 'trystrtoint64', 'trystrtotime',
            'unloadpackage', 'uppercase', 'widecomparestr', 'widecomparetext',
            'widefmtstr', 'wideformat', 'wideformatbuf', 'widelowercase',
            'widesamestr', 'widesametext', 'wideuppercase', 'win32check',
            'wraptext'
        ],
        'Classes': [
            'activateclassgroup', 'allocatehwnd', 'bintohex', 'checksynchronize',
            'collectionsequal', 'countgenerations', 'deallocatehwnd', 'equalrect',
            'extractstrings', 'findclass', 'findglobalcomponent', 'getclass',
            'groupdescendantswith', 'hextobin', 'identtoint',
            'initinheritedcomponent', 'inttoident', 'invalidpoint',
            'isuniqueglobalcomponentname', 'linestart', 'objectbinarytotext',
            'objectresourcetotext', 'objecttexttobinary', 'objecttexttoresource',
            'pointsequal', 'readcomponentres', 'readcomponentresex',
            'readcomponentresfile', 'rect', 'registerclass', 'registerclassalias',
            'registerclasses', 'registercomponents', 'registerintegerconsts',
            'registernoicon', 'registernonactivex', 'smallpoint', 'startclassgroup',
            'teststreamformat', 'unregisterclass', 'unregisterclasses',
            'unregisterintegerconsts', 'unregistermoduleclasses',
            'writecomponentresfile'
        ],
        'Math': [
            'arccos', 'arccosh', 'arccot', 'arccoth', 'arccsc', 'arccsch', 'arcsec',
            'arcsech', 'arcsin', 'arcsinh', 'arctan2', 'arctanh', 'ceil',
            'comparevalue', 'cosecant', 'cosh', 'cot', 'cotan', 'coth', 'csc',
            'csch', 'cycletodeg', 'cycletograd', 'cycletorad', 'degtocycle',
            'degtograd', 'degtorad', 'divmod', 'doubledecliningbalance',
            'ensurerange', 'floor', 'frexp', 'futurevalue', 'getexceptionmask',
            'getprecisionmode', 'getroundmode', 'gradtocycle', 'gradtodeg',
            'gradtorad', 'hypot', 'inrange', 'interestpayment', 'interestrate',
            'internalrateofreturn', 'intpower', 'isinfinite', 'isnan', 'iszero',
            'ldexp', 'lnxp1', 'log10', 'log2', 'logn', 'max', 'maxintvalue',
            'maxvalue', 'mean', 'meanandstddev', 'min', 'minintvalue', 'minvalue',
            'momentskewkurtosis', 'netpresentvalue', 'norm', 'numberofperiods',
            'payment', 'periodpayment', 'poly', 'popnstddev', 'popnvariance',
            'power', 'presentvalue', 'radtocycle', 'radtodeg', 'radtograd',
            'randg', 'randomrange', 'roundto', 'samevalue', 'sec', 'secant',
            'sech', 'setexceptionmask', 'setprecisionmode', 'setroundmode',
            'sign', 'simpleroundto', 'sincos', 'sinh', 'slndepreciation', 'stddev',
            'sum', 'sumint', 'sumofsquares', 'sumsandsquares', 'syddepreciation',
            'tan', 'tanh', 'totalvariance', 'variance'
        ]
    }

    ASM_REGISTERS = set([
        'ah', 'al', 'ax', 'bh', 'bl', 'bp', 'bx', 'ch', 'cl', 'cr0',
        'cr1', 'cr2', 'cr3', 'cr4', 'cs', 'cx', 'dh', 'di', 'dl', 'dr0',
        'dr1', 'dr2', 'dr3', 'dr4', 'dr5', 'dr6', 'dr7', 'ds', 'dx',
        'eax', 'ebp', 'ebx', 'ecx', 'edi', 'edx', 'es', 'esi', 'esp',
        'fs', 'gs', 'mm0', 'mm1', 'mm2', 'mm3', 'mm4', 'mm5', 'mm6',
        'mm7', 'si', 'sp', 'ss', 'st0', 'st1', 'st2', 'st3', 'st4', 'st5',
        'st6', 'st7', 'xmm0', 'xmm1', 'xmm2', 'xmm3', 'xmm4', 'xmm5',
        'xmm6', 'xmm7'
    ])

    ASM_INSTRUCTIONS = set([
        'aaa', 'aad', 'aam', 'aas', 'adc', 'add', 'and', 'arpl', 'bound',
        'bsf', 'bsr', 'bswap', 'bt', 'btc', 'btr', 'bts', 'call', 'cbw',
        'cdq', 'clc', 'cld', 'cli', 'clts', 'cmc', 'cmova', 'cmovae',
        'cmovb', 'cmovbe', 'cmovc', 'cmovcxz', 'cmove', 'cmovg',
        'cmovge', 'cmovl', 'cmovle', 'cmovna', 'cmovnae', 'cmovnb',
        'cmovnbe', 'cmovnc', 'cmovne', 'cmovng', 'cmovnge', 'cmovnl',
        'cmovnle', 'cmovno', 'cmovnp', 'cmovns', 'cmovnz', 'cmovo',
        'cmovp', 'cmovpe', 'cmovpo', 'cmovs', 'cmovz', 'cmp', 'cmpsb',
        'cmpsd', 'cmpsw', 'cmpxchg', 'cmpxchg486', 'cmpxchg8b', 'cpuid',
        'cwd', 'cwde', 'daa', 'das', 'dec', 'div', 'emms', 'enter', 'hlt',
        'ibts', 'icebp', 'idiv', 'imul', 'in', 'inc', 'insb', 'insd',
        'insw', 'int', 'int01', 'int03', 'int1', 'int3', 'into', 'invd',
        'invlpg', 'iret', 'iretd', 'iretw', 'ja', 'jae', 'jb', 'jbe',
        'jc', 'jcxz', 'jcxz', 'je', 'jecxz', 'jg', 'jge', 'jl', 'jle',
        'jmp', 'jna', 'jnae', 'jnb', 'jnbe', 'jnc', 'jne', 'jng', 'jnge',
        'jnl', 'jnle', 'jno', 'jnp', 'jns', 'jnz', 'jo', 'jp', 'jpe',
        'jpo', 'js', 'jz', 'lahf', 'lar', 'lcall', 'lds', 'lea', 'leave',
        'les', 'lfs', 'lgdt', 'lgs', 'lidt', 'ljmp', 'lldt', 'lmsw',
        'loadall', 'loadall286', 'lock', 'lodsb', 'lodsd', 'lodsw',
        'loop', 'loope', 'loopne', 'loopnz', 'loopz', 'lsl', 'lss', 'ltr',
        'mov', 'movd', 'movq', 'movsb', 'movsd', 'movsw', 'movsx',
        'movzx', 'mul', 'neg', 'nop', 'not', 'or', 'out', 'outsb', 'outsd',
        'outsw', 'pop', 'popa', 'popad', 'popaw', 'popf', 'popfd', 'popfw',
        'push', 'pusha', 'pushad', 'pushaw', 'pushf', 'pushfd', 'pushfw',
        'rcl', 'rcr', 'rdmsr', 'rdpmc', 'rdshr', 'rdtsc', 'rep', 'repe',
        'repne', 'repnz', 'repz', 'ret', 'retf', 'retn', 'rol', 'ror',
        'rsdc', 'rsldt', 'rsm', 'sahf', 'sal', 'salc', 'sar', 'sbb',
        'scasb', 'scasd', 'scasw', 'seta', 'setae', 'setb', 'setbe',
        'setc', 'setcxz', 'sete', 'setg', 'setge', 'setl', 'setle',
        'setna', 'setnae', 'setnb', 'setnbe', 'setnc', 'setne', 'setng',
        'setnge', 'setnl', 'setnle', 'setno', 'setnp', 'setns', 'setnz',
        'seto', 'setp', 'setpe', 'setpo', 'sets', 'setz', 'sgdt', 'shl',
        'shld', 'shr', 'shrd', 'sidt', 'sldt', 'smi', 'smint', 'smintold',
        'smsw', 'stc', 'std', 'sti', 'stosb', 'stosd', 'stosw', 'str',
        'sub', 'svdc', 'svldt', 'svts', 'syscall', 'sysenter', 'sysexit',
        'sysret', 'test', 'ud1', 'ud2', 'umov', 'verr', 'verw', 'wait',
        'wbinvd', 'wrmsr', 'wrshr', 'xadd', 'xbts', 'xchg', 'xlat',
        'xlatb', 'xor'
    ])

    def __init__(self, **options):
        Lexer.__init__(self, **options)
        self.keywords = set()
        if get_bool_opt(options, 'turbopascal', True):
            self.keywords.update(self.TURBO_PASCAL_KEYWORDS)
        if get_bool_opt(options, 'delphi', True):
            self.keywords.update(self.DELPHI_KEYWORDS)
        if get_bool_opt(options, 'freepascal', True):
            self.keywords.update(self.FREE_PASCAL_KEYWORDS)
        self.builtins = set()
        for unit in get_list_opt(options, 'units', list(self.BUILTIN_UNITS.keys())):
            self.builtins.update(self.BUILTIN_UNITS[unit])

    def get_tokens_unprocessed(self, text):
        scanner = Scanner(text, re.DOTALL | re.MULTILINE | re.IGNORECASE)
        stack = ['initial']
        in_function_block = False
        in_property_block = False
        was_dot = False
        next_token_is_function = False
        next_token_is_property = False
        collect_labels = False
        block_labels = set()
        brace_balance = [0, 0]

        while not scanner.eos:
            token = Error

            if stack[-1] == 'initial':
                if scanner.scan(r'\s+'):
                    token = Text
                elif scanner.scan(r'\{.*?\}|\(\*.*?\*\)'):
                    if scanner.match.startswith('$'):
                        token = Comment.Preproc
                    else:
                        token = Comment.Multiline
                elif scanner.scan(r'//.*?$'):
                    token = Comment.Single
                elif scanner.scan(r'[-+*\/=<>:;,.@\^]'):
                    token = Operator
                    # stop label highlighting on next ";"
                    if collect_labels and scanner.match == ';':
                        collect_labels = False
                elif scanner.scan(r'[\(\)\[\]]+'):
                    token = Punctuation
                    # abort function naming ``foo = Function(...)``
                    next_token_is_function = False
                    # if we are in a function block we count the open
                    # braces because ootherwise it's impossible to
                    # determine the end of the modifier context
                    if in_function_block or in_property_block:
                        if scanner.match == '(':
                            brace_balance[0] += 1
                        elif scanner.match == ')':
                            brace_balance[0] -= 1
                        elif scanner.match == '[':
                            brace_balance[1] += 1
                        elif scanner.match == ']':
                            brace_balance[1] -= 1
                elif scanner.scan(r'[A-Za-z_][A-Za-z_0-9]*'):
                    lowercase_name = scanner.match.lower()
                    if lowercase_name == 'result':
                        token = Name.Builtin.Pseudo
                    elif lowercase_name in self.keywords:
                        token = Keyword
                        # if we are in a special block and a
                        # block ending keyword occours (and the parenthesis
                        # is balanced) we end the current block context
                        if (in_function_block or in_property_block) and \
                           lowercase_name in self.BLOCK_KEYWORDS and \
                           brace_balance[0] <= 0 and \
                           brace_balance[1] <= 0:
                            in_function_block = False
                            in_property_block = False
                            brace_balance = [0, 0]
                            block_labels = set()
                        if lowercase_name in ('label', 'goto'):
                            collect_labels = True
                        elif lowercase_name == 'asm':
                            stack.append('asm')
                        elif lowercase_name == 'property':
                            in_property_block = True
                            next_token_is_property = True
                        elif lowercase_name in ('procedure', 'operator',
                                                'function', 'constructor',
                                                'destructor'):
                            in_function_block = True
                            next_token_is_function = True
                    # we are in a function block and the current name
                    # is in the set of registered modifiers. highlight
                    # it as pseudo keyword
                    elif in_function_block and \
                         lowercase_name in self.FUNCTION_MODIFIERS:
                        token = Keyword.Pseudo
                    # if we are in a property highlight some more
                    # modifiers
                    elif in_property_block and \
                         lowercase_name in ('read', 'write'):
                        token = Keyword.Pseudo
                        next_token_is_function = True
                    # if the last iteration set next_token_is_function
                    # to true we now want this name highlighted as
                    # function. so do that and reset the state
                    elif next_token_is_function:
                        # Look if the next token is a dot. If yes it's
                        # not a function, but a class name and the
                        # part after the dot a function name
                        if scanner.test(r'\s*\.\s*'):
                            token = Name.Class
                        # it's not a dot, our job is done
                        else:
                            token = Name.Function
                            next_token_is_function = False
                    # same for properties
                    elif next_token_is_property:
                        token = Name.Property
                        next_token_is_property = False
                    # Highlight this token as label and add it
                    # to the list of known labels
                    elif collect_labels:
                        token = Name.Label
                        block_labels.add(scanner.match.lower())
                    # name is in list of known labels
                    elif lowercase_name in block_labels:
                        token = Name.Label
                    elif lowercase_name in self.BUILTIN_TYPES:
                        token = Keyword.Type
                    elif lowercase_name in self.DIRECTIVES:
                        token = Keyword.Pseudo
                    # builtins are just builtins if the token
                    # before isn't a dot
                    elif not was_dot and lowercase_name in self.builtins:
                        token = Name.Builtin
                    else:
                        token = Name
                elif scanner.scan(r"'"):
                    token = String
                    stack.append('string')
                elif scanner.scan(r'\#(\d+|\$[0-9A-Fa-f]+)'):
                    token = String.Char
                elif scanner.scan(r'\$[0-9A-Fa-f]+'):
                    token = Number.Hex
                elif scanner.scan(r'\d+(?![eE]|\.[^.])'):
                    token = Number.Integer
                elif scanner.scan(r'\d+(\.\d+([eE][+-]?\d+)?|[eE][+-]?\d+)'):
                    token = Number.Float
                else:
                    # if the stack depth is deeper than once, pop
                    if len(stack) > 1:
                        stack.pop()
                    scanner.get_char()

            elif stack[-1] == 'string':
                if scanner.scan(r"''"):
                    token = String.Escape
                elif scanner.scan(r"'"):
                    token = String
                    stack.pop()
                elif scanner.scan(r"[^']*"):
                    token = String
                else:
                    scanner.get_char()
                    stack.pop()

            elif stack[-1] == 'asm':
                if scanner.scan(r'\s+'):
                    token = Text
                elif scanner.scan(r'end'):
                    token = Keyword
                    stack.pop()
                elif scanner.scan(r'\{.*?\}|\(\*.*?\*\)'):
                    if scanner.match.startswith('$'):
                        token = Comment.Preproc
                    else:
                        token = Comment.Multiline
                elif scanner.scan(r'//.*?$'):
                    token = Comment.Single
                elif scanner.scan(r"'"):
                    token = String
                    stack.append('string')
                elif scanner.scan(r'@@[A-Za-z_][A-Za-z_0-9]*'):
                    token = Name.Label
                elif scanner.scan(r'[A-Za-z_][A-Za-z_0-9]*'):
                    lowercase_name = scanner.match.lower()
                    if lowercase_name in self.ASM_INSTRUCTIONS:
                        token = Keyword
                    elif lowercase_name in self.ASM_REGISTERS:
                        token = Name.Builtin
                    else:
                        token = Name
                elif scanner.scan(r'[-+*\/=<>:;,.@\^]+'):
                    token = Operator
                elif scanner.scan(r'[\(\)\[\]]+'):
                    token = Punctuation
                elif scanner.scan(r'\$[0-9A-Fa-f]+'):
                    token = Number.Hex
                elif scanner.scan(r'\d+(?![eE]|\.[^.])'):
                    token = Number.Integer
                elif scanner.scan(r'\d+(\.\d+([eE][+-]?\d+)?|[eE][+-]?\d+)'):
                    token = Number.Float
                else:
                    scanner.get_char()
                    stack.pop()

            # save the dot!!!11
            if scanner.match.strip():
                was_dot = scanner.match == '.'
            yield scanner.start_pos, token, scanner.match or ''


class JavaLexer(RegexLexer):
    """
    For `Java <http://www.sun.com/java/>`_ source code.
    """

    name = 'Java'
    aliases = ['java']
    filenames = ['*.java']
    mimetypes = ['text/x-java']

    flags = re.MULTILINE | re.DOTALL

    #: optional Comment or Whitespace
    _ws = r'(?:\s|//.*?\n|/[*].*?[*]/)+'

    tokens = {
        'root': [
            # method names
            (r'^(\s*(?:[a-zA-Z_][a-zA-Z0-9_\.\[\]]*\s+)+?)' # return arguments
             r'([a-zA-Z_][a-zA-Z0-9_]*)'                    # method name
             r'(\s*)(\()',                                  # signature start
             bygroups(using(this), Name.Function, Text, Operator)),
            (r'[^\S\n]+', Text),
            (r'//.*?\n', Comment.Single),
            (r'/\*.*?\*/', Comment.Multiline),
            (r'@[a-zA-Z_][a-zA-Z0-9_\.]*', Name.Decorator),
            (r'(assert|break|case|catch|continue|default|do|else|finally|for|'
             r'if|goto|instanceof|new|return|switch|this|throw|try|while)\b',
             Keyword),
            (r'(abstract|const|enum|extends|final|implements|native|private|'
             r'protected|public|static|strictfp|super|synchronized|throws|'
             r'transient|volatile)\b', Keyword.Declaration),
            (r'(boolean|byte|char|double|float|int|long|short|void)\b',
             Keyword.Type),
            (r'(package)(\s+)', bygroups(Keyword.Namespace, Text)),
            (r'(true|false|null)\b', Keyword.Constant),
            (r'(class|interface)(\s+)', bygroups(Keyword.Declaration, Text), 'class'),
            (r'(import)(\s+)', bygroups(Keyword.Namespace, Text), 'import'),
            (r'"(\\\\|\\"|[^"])*"', String),
            (r"'\\.'|'[^\\]'|'\\u[0-9a-f]{4}'", String.Char),
            (r'(\.)([a-zA-Z_][a-zA-Z0-9_]*)', bygroups(Operator, Name.Attribute)),
            (r'[a-zA-Z_][a-zA-Z0-9_]*:', Name.Label),
            (r'[a-zA-Z_\$][a-zA-Z0-9_]*', Name),
            (r'[~\^\*!%&\[\]\(\)\{\}<>\|+=:;,./?-]', Operator),
            (r'[0-9][0-9]*\.[0-9]+([eE][0-9]+)?[fd]?', Number.Float),
            (r'0x[0-9a-f]+', Number.Hex),
            (r'[0-9]+L?', Number.Integer),
            (r'\n', Text)
        ],
        'class': [
            (r'[a-zA-Z_][a-zA-Z0-9_]*', Name.Class, '#pop')
        ],
        'import': [
            (r'[a-zA-Z0-9_.]+\*?', Name.Namespace, '#pop')
        ],
    }


class ScalaLexer(RegexLexer):
    """
    For `Scala <http://www.scala-lang.org>`_ source code.
    """

    name = 'Scala'
    aliases = ['scala']
    filenames = ['*.scala']
    mimetypes = ['text/x-scala']

    flags = re.MULTILINE | re.DOTALL

    #: optional Comment or Whitespace
    _ws = r'(?:\s|//.*?\n|/[*].*?[*]/)+'

    # don't use raw unicode strings!
    op = '[-~\\^\\*!%&\\\\<>\\|+=:/?@\u00a6-\u00a7\u00a9\u00ac\u00ae\u00b0-\u00b1\u00b6\u00d7\u00f7\u03f6\u0482\u0606-\u0608\u060e-\u060f\u06e9\u06fd-\u06fe\u07f6\u09fa\u0b70\u0bf3-\u0bf8\u0bfa\u0c7f\u0cf1-\u0cf2\u0d79\u0f01-\u0f03\u0f13-\u0f17\u0f1a-\u0f1f\u0f34\u0f36\u0f38\u0fbe-\u0fc5\u0fc7-\u0fcf\u109e-\u109f\u1360\u1390-\u1399\u1940\u19e0-\u19ff\u1b61-\u1b6a\u1b74-\u1b7c\u2044\u2052\u207a-\u207c\u208a-\u208c\u2100-\u2101\u2103-\u2106\u2108-\u2109\u2114\u2116-\u2118\u211e-\u2123\u2125\u2127\u2129\u212e\u213a-\u213b\u2140-\u2144\u214a-\u214d\u214f\u2190-\u2328\u232b-\u244a\u249c-\u24e9\u2500-\u2767\u2794-\u27c4\u27c7-\u27e5\u27f0-\u2982\u2999-\u29d7\u29dc-\u29fb\u29fe-\u2b54\u2ce5-\u2cea\u2e80-\u2ffb\u3004\u3012-\u3013\u3020\u3036-\u3037\u303e-\u303f\u3190-\u3191\u3196-\u319f\u31c0-\u31e3\u3200-\u321e\u322a-\u3250\u3260-\u327f\u328a-\u32b0\u32c0-\u33ff\u4dc0-\u4dff\ua490-\ua4c6\ua828-\ua82b\ufb29\ufdfd\ufe62\ufe64-\ufe66\uff0b\uff1c-\uff1e\uff5c\uff5e\uffe2\uffe4\uffe8-\uffee\ufffc-\ufffd]+'

    letter = '[a-zA-Z\\$_\u00aa\u00b5\u00ba\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u02af\u0370-\u0373\u0376-\u0377\u037b-\u037d\u0386\u0388-\u03f5\u03f7-\u0481\u048a-\u0556\u0561-\u0587\u05d0-\u05f2\u0621-\u063f\u0641-\u064a\u066e-\u066f\u0671-\u06d3\u06d5\u06ee-\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u0904-\u0939\u093d\u0950\u0958-\u0961\u0972-\u097f\u0985-\u09b9\u09bd\u09ce\u09dc-\u09e1\u09f0-\u09f1\u0a05-\u0a39\u0a59-\u0a5e\u0a72-\u0a74\u0a85-\u0ab9\u0abd\u0ad0-\u0ae1\u0b05-\u0b39\u0b3d\u0b5c-\u0b61\u0b71\u0b83-\u0bb9\u0bd0\u0c05-\u0c3d\u0c58-\u0c61\u0c85-\u0cb9\u0cbd\u0cde-\u0ce1\u0d05-\u0d3d\u0d60-\u0d61\u0d7a-\u0d7f\u0d85-\u0dc6\u0e01-\u0e30\u0e32-\u0e33\u0e40-\u0e45\u0e81-\u0eb0\u0eb2-\u0eb3\u0ebd-\u0ec4\u0edc-\u0f00\u0f40-\u0f6c\u0f88-\u0f8b\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065-\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10fa\u1100-\u135a\u1380-\u138f\u13a0-\u166c\u166f-\u1676\u1681-\u169a\u16a0-\u16ea\u16ee-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u1770\u1780-\u17b3\u17dc\u1820-\u1842\u1844-\u18a8\u18aa-\u191c\u1950-\u19a9\u19c1-\u19c7\u1a00-\u1a16\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae-\u1baf\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c77\u1d00-\u1d2b\u1d62-\u1d77\u1d79-\u1d9a\u1e00-\u1fbc\u1fbe\u1fc2-\u1fcc\u1fd0-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ffc\u2071\u207f\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c7c\u2c80-\u2ce4\u2d00-\u2d65\u2d80-\u2dde\u3006-\u3007\u3021-\u3029\u3038-\u303a\u303c\u3041-\u3096\u309f\u30a1-\u30fa\u30ff-\u318e\u31a0-\u31b7\u31f0-\u31ff\u3400-\u4db5\u4e00-\ua014\ua016-\ua48c\ua500-\ua60b\ua610-\ua61f\ua62a-\ua66e\ua680-\ua697\ua722-\ua76f\ua771-\ua787\ua78b-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua90a-\ua925\ua930-\ua946\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uac00-\ud7a3\uf900-\ufb1d\ufb1f-\ufb28\ufb2a-\ufd3d\ufd50-\ufdfb\ufe70-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uff6f\uff71-\uff9d\uffa0-\uffdc]'

    upper = '[A-Z\\$_\u00c0-\u00d6\u00d8-\u00de\u0100\u0102\u0104\u0106\u0108\u010a\u010c\u010e\u0110\u0112\u0114\u0116\u0118\u011a\u011c\u011e\u0120\u0122\u0124\u0126\u0128\u012a\u012c\u012e\u0130\u0132\u0134\u0136\u0139\u013b\u013d\u013f\u0141\u0143\u0145\u0147\u014a\u014c\u014e\u0150\u0152\u0154\u0156\u0158\u015a\u015c\u015e\u0160\u0162\u0164\u0166\u0168\u016a\u016c\u016e\u0170\u0172\u0174\u0176\u0178-\u0179\u017b\u017d\u0181-\u0182\u0184\u0186-\u0187\u0189-\u018b\u018e-\u0191\u0193-\u0194\u0196-\u0198\u019c-\u019d\u019f-\u01a0\u01a2\u01a4\u01a6-\u01a7\u01a9\u01ac\u01ae-\u01af\u01b1-\u01b3\u01b5\u01b7-\u01b8\u01bc\u01c4\u01c7\u01ca\u01cd\u01cf\u01d1\u01d3\u01d5\u01d7\u01d9\u01db\u01de\u01e0\u01e2\u01e4\u01e6\u01e8\u01ea\u01ec\u01ee\u01f1\u01f4\u01f6-\u01f8\u01fa\u01fc\u01fe\u0200\u0202\u0204\u0206\u0208\u020a\u020c\u020e\u0210\u0212\u0214\u0216\u0218\u021a\u021c\u021e\u0220\u0222\u0224\u0226\u0228\u022a\u022c\u022e\u0230\u0232\u023a-\u023b\u023d-\u023e\u0241\u0243-\u0246\u0248\u024a\u024c\u024e\u0370\u0372\u0376\u0386\u0388-\u038f\u0391-\u03ab\u03cf\u03d2-\u03d4\u03d8\u03da\u03dc\u03de\u03e0\u03e2\u03e4\u03e6\u03e8\u03ea\u03ec\u03ee\u03f4\u03f7\u03f9-\u03fa\u03fd-\u042f\u0460\u0462\u0464\u0466\u0468\u046a\u046c\u046e\u0470\u0472\u0474\u0476\u0478\u047a\u047c\u047e\u0480\u048a\u048c\u048e\u0490\u0492\u0494\u0496\u0498\u049a\u049c\u049e\u04a0\u04a2\u04a4\u04a6\u04a8\u04aa\u04ac\u04ae\u04b0\u04b2\u04b4\u04b6\u04b8\u04ba\u04bc\u04be\u04c0-\u04c1\u04c3\u04c5\u04c7\u04c9\u04cb\u04cd\u04d0\u04d2\u04d4\u04d6\u04d8\u04da\u04dc\u04de\u04e0\u04e2\u04e4\u04e6\u04e8\u04ea\u04ec\u04ee\u04f0\u04f2\u04f4\u04f6\u04f8\u04fa\u04fc\u04fe\u0500\u0502\u0504\u0506\u0508\u050a\u050c\u050e\u0510\u0512\u0514\u0516\u0518\u051a\u051c\u051e\u0520\u0522\u0531-\u0556\u10a0-\u10c5\u1e00\u1e02\u1e04\u1e06\u1e08\u1e0a\u1e0c\u1e0e\u1e10\u1e12\u1e14\u1e16\u1e18\u1e1a\u1e1c\u1e1e\u1e20\u1e22\u1e24\u1e26\u1e28\u1e2a\u1e2c\u1e2e\u1e30\u1e32\u1e34\u1e36\u1e38\u1e3a\u1e3c\u1e3e\u1e40\u1e42\u1e44\u1e46\u1e48\u1e4a\u1e4c\u1e4e\u1e50\u1e52\u1e54\u1e56\u1e58\u1e5a\u1e5c\u1e5e\u1e60\u1e62\u1e64\u1e66\u1e68\u1e6a\u1e6c\u1e6e\u1e70\u1e72\u1e74\u1e76\u1e78\u1e7a\u1e7c\u1e7e\u1e80\u1e82\u1e84\u1e86\u1e88\u1e8a\u1e8c\u1e8e\u1e90\u1e92\u1e94\u1e9e\u1ea0\u1ea2\u1ea4\u1ea6\u1ea8\u1eaa\u1eac\u1eae\u1eb0\u1eb2\u1eb4\u1eb6\u1eb8\u1eba\u1ebc\u1ebe\u1ec0\u1ec2\u1ec4\u1ec6\u1ec8\u1eca\u1ecc\u1ece\u1ed0\u1ed2\u1ed4\u1ed6\u1ed8\u1eda\u1edc\u1ede\u1ee0\u1ee2\u1ee4\u1ee6\u1ee8\u1eea\u1eec\u1eee\u1ef0\u1ef2\u1ef4\u1ef6\u1ef8\u1efa\u1efc\u1efe\u1f08-\u1f0f\u1f18-\u1f1d\u1f28-\u1f2f\u1f38-\u1f3f\u1f48-\u1f4d\u1f59-\u1f5f\u1f68-\u1f6f\u1fb8-\u1fbb\u1fc8-\u1fcb\u1fd8-\u1fdb\u1fe8-\u1fec\u1ff8-\u1ffb\u2102\u2107\u210b-\u210d\u2110-\u2112\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u2130-\u2133\u213e-\u213f\u2145\u2183\u2c00-\u2c2e\u2c60\u2c62-\u2c64\u2c67\u2c69\u2c6b\u2c6d-\u2c6f\u2c72\u2c75\u2c80\u2c82\u2c84\u2c86\u2c88\u2c8a\u2c8c\u2c8e\u2c90\u2c92\u2c94\u2c96\u2c98\u2c9a\u2c9c\u2c9e\u2ca0\u2ca2\u2ca4\u2ca6\u2ca8\u2caa\u2cac\u2cae\u2cb0\u2cb2\u2cb4\u2cb6\u2cb8\u2cba\u2cbc\u2cbe\u2cc0\u2cc2\u2cc4\u2cc6\u2cc8\u2cca\u2ccc\u2cce\u2cd0\u2cd2\u2cd4\u2cd6\u2cd8\u2cda\u2cdc\u2cde\u2ce0\u2ce2\ua640\ua642\ua644\ua646\ua648\ua64a\ua64c\ua64e\ua650\ua652\ua654\ua656\ua658\ua65a\ua65c\ua65e\ua662\ua664\ua666\ua668\ua66a\ua66c\ua680\ua682\ua684\ua686\ua688\ua68a\ua68c\ua68e\ua690\ua692\ua694\ua696\ua722\ua724\ua726\ua728\ua72a\ua72c\ua72e\ua732\ua734\ua736\ua738\ua73a\ua73c\ua73e\ua740\ua742\ua744\ua746\ua748\ua74a\ua74c\ua74e\ua750\ua752\ua754\ua756\ua758\ua75a\ua75c\ua75e\ua760\ua762\ua764\ua766\ua768\ua76a\ua76c\ua76e\ua779\ua77b\ua77d-\ua77e\ua780\ua782\ua784\ua786\ua78b\uff21-\uff3a]'

    idrest = r'%s(?:%s|[0-9])*(?:(?<=_)%s)?' % (letter, letter, op)

    tokens = {
        'root': [
            # method names
            (r'(class|trait|object)(\s+)', bygroups(Keyword, Text), 'class'),
            (r"'%s" % idrest, Text.Symbol),
            (r'[^\S\n]+', Text),
            (r'//.*?\n', Comment.Single),
            (r'/\*', Comment.Multiline, 'comment'),
            (r'@%s' % idrest, Name.Decorator),
            (r'(abstract|ca(?:se|tch)|d(?:ef|o)|e(?:lse|xtends)|'
             r'f(?:inal(?:ly)?|or(?:Some)?)|i(?:f|mplicit)|'
             r'lazy|match|new|override|pr(?:ivate|otected)'
             r'|re(?:quires|turn)|s(?:ealed|uper)|'
             r't(?:h(?:is|row)|ry)|va[lr]|w(?:hile|ith)|yield)\b|'
             '(<[%:-]|=>|>:|[#=@_\u21D2\u2190])(\b|(?=\\s)|$)', Keyword),
            (r':(?!%s)' % op, Keyword, 'type'),
            (r'%s%s\b' % (upper, idrest), Name.Class),
            (r'(true|false|null)\b', Keyword.Constant),
            (r'(import|package)(\s+)', bygroups(Keyword, Text), 'import'),
            (r'(type)(\s+)', bygroups(Keyword, Text), 'type'),
            (r'"""(?:.|\n)*?"""', String),
            (r'"(\\\\|\\"|[^"])*"', String),
            (r"'\\.'|'[^\\]'|'\\u[0-9a-f]{4}'", String.Char),
#            (ur'(\.)(%s|%s|`[^`]+`)' % (idrest, op), bygroups(Operator,
#             Name.Attribute)),
            (idrest, Name),
            (r'`[^`]+`', Name),
            (r'\[', Operator, 'typeparam'),
            (r'[\(\)\{\};,.]', Operator),
            (op, Operator),
            (r'([0-9][0-9]*\.[0-9]*|\.[0-9]+)([eE][+-]?[0-9]+)?[fFdD]?',
             Number.Float),
            (r'0x[0-9a-f]+', Number.Hex),
            (r'[0-9]+L?', Number.Integer),
            (r'\n', Text)
        ],
        'class': [
            (r'(%s|%s|`[^`]+`)(\s*)(\[)' % (idrest, op),
             bygroups(Name.Class, Text, Operator), 'typeparam'),
            (r'[\s\n]+', Text),
            (r'{', Operator, '#pop'),
            (r'\(', Operator, '#pop'),
            (r'%s|%s|`[^`]+`' % (idrest, op), Name.Class, '#pop'),
        ],
        'type': [
            (r'\s+', Text),
            ('<[%:]|>:|[#_\u21D2]|forSome|type', Keyword),
            (r'([,\);}]|=>|=)([\s\n]*)', bygroups(Operator, Text), '#pop'),
            (r'[\(\{]', Operator, '#push'),
            (r'((?:%s|%s|`[^`]+`)(?:\.(?:%s|%s|`[^`]+`))*)(\s*)(\[)' %
             (idrest, op, idrest, op),
             bygroups(Keyword.Type, Text, Operator), ('#pop', 'typeparam')),
            (r'((?:%s|%s|`[^`]+`)(?:\.(?:%s|%s|`[^`]+`))*)(\s*)$' %
             (idrest, op, idrest, op),
             bygroups(Keyword.Type, Text), '#pop'),
            (r'\.|%s|%s|`[^`]+`' % (idrest, op), Keyword.Type)
        ],
        'typeparam': [
            (r'[\s\n,]+', Text),
            ('<[%:]|=>|>:|[#_\u21D2]|forSome|type', Keyword),
            (r'([\]\)\}])', Operator, '#pop'),
            (r'[\(\[\{]', Operator, '#push'),
            (r'\.|%s|%s|`[^`]+`' % (idrest, op), Keyword.Type)
        ],
        'comment': [
            (r'[^/\*]+', Comment.Multiline),
            (r'/\*', Comment.Multiline, '#push'),
            (r'\*/', Comment.Multiline, '#pop'),
            (r'[*/]', Comment.Multiline)
        ],
        'import': [
            (r'(%s|\.)+' % idrest, Name.Namespace, '#pop')
        ],
    }


class DylanLexer(RegexLexer):
    """
    For the `Dylan <http://www.opendylan.org/>`_ language.

    *New in Pygments 0.7.*
    """

    name = 'Dylan'
    aliases = ['dylan']
    filenames = ['*.dylan', '*.dyl']
    mimetypes = ['text/x-dylan']

    flags = re.DOTALL

    tokens = {
        'root': [
            (r'\b(subclass|abstract|block|c(on(crete|stant)|lass)|domain'
             r'|ex(c(eption|lude)|port)|f(unction(|al))|generic|handler'
             r'|i(n(herited|line|stance|terface)|mport)|library|m(acro|ethod)'
             r'|open|primary|sealed|si(deways|ngleton)|slot'
             r'|v(ariable|irtual))\b', Name.Builtin),
            (r'<\w+>', Keyword.Type),
            (r'//.*?\n', Comment.Single),
            (r'/\*[\w\W]*?\*/', Comment.Multiline),
            (r'"', String, 'string'),
            (r"'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'", String.Char),
            (r'=>|\b(a(bove|fterwards)|b(e(gin|low)|y)|c(ase|leanup|reate)'
             r'|define|else(|if)|end|f(inally|or|rom)|i[fn]|l(et|ocal)|otherwise'
             r'|rename|s(elect|ignal)|t(hen|o)|u(n(less|til)|se)|wh(en|ile))\b',
             Keyword),
            (r'([ \t])([!\$%&\*\/:<=>\?~_^a-zA-Z0-9.+\-]*:)',
             bygroups(Text, Name.Variable)),
            (r'([ \t]*)(\S+[^:])([ \t]*)(\()([ \t]*)',
             bygroups(Text, Name.Function, Text, Punctuation, Text)),
            (r'-?[0-9.]+', Number),
            (r'[(),;]', Punctuation),
            (r'\$[a-zA-Z0-9-]+', Name.Constant),
            (r'[!$%&*/:<>=?~^.+\[\]{}-]+', Operator),
            (r'\s+', Text),
            (r'#[a-zA-Z0-9-]+', Keyword),
            (r'[a-zA-Z0-9-]+', Name.Variable),
        ],
        'string': [
            (r'"', String, '#pop'),
            (r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|[0-7]{1,3})', String.Escape),
            (r'[^\\"\n]+', String), # all other characters
            (r'\\\n', String), # line continuation
            (r'\\', String), # stray backslash
        ],
    }


class ObjectiveCLexer(RegexLexer):
    """
    For Objective-C source code with preprocessor directives.
    """

    name = 'Objective-C'
    aliases = ['objective-c', 'objectivec', 'obj-c', 'objc']
    #XXX: objc has .h files too :-/
    filenames = ['*.m']
    mimetypes = ['text/x-objective-c']

    #: optional Comment or Whitespace
    _ws = r'(?:\s|//.*?\n|/[*].*?[*]/)+'

    tokens = {
        'whitespace': [
            # preprocessor directives: without whitespace
            ('^#if\s+0', Comment.Preproc, 'if0'),
            ('^#', Comment.Preproc, 'macro'),
            # or with whitespace
            ('^' + _ws + r'#if\s+0', Comment.Preproc, 'if0'),
            ('^' + _ws + '#', Comment.Preproc, 'macro'),
            (r'\n', Text),
            (r'\s+', Text),
            (r'\\\n', Text), # line continuation
            (r'//(\n|(.|\n)*?[^\\]\n)', Comment.Single),
            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
        ],
        'statements': [
            (r'(L|@)?"', String, 'string'),
            (r"(L|@)?'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'",
             String.Char),
            (r'(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[lL]?', Number.Float),
            (r'(\d+\.\d*|\.\d+|\d+[fF])[fF]?', Number.Float),
            (r'0x[0-9a-fA-F]+[Ll]?', Number.Hex),
            (r'0[0-7]+[Ll]?', Number.Oct),
            (r'\d+[Ll]?', Number.Integer),
            (r'[~!%^&*+=|?:<>/-]', Operator),
            (r'[()\[\],.]', Punctuation),
            (r'(auto|break|case|const|continue|default|do|else|enum|extern|'
             r'for|goto|if|register|restricted|return|sizeof|static|struct|'
             r'switch|typedef|union|volatile|virtual|while|in|@selector|'
             r'@private|@protected|@public|@encode|'
             r'@synchronized|@try|@throw|@catch|@finally|@end|@property|'
             r'@synthesize|@dynamic)\b', Keyword),
            (r'(int|long|float|short|double|char|unsigned|signed|void|'
             r'id|BOOL|IBOutlet|IBAction|SEL)\b', Keyword.Type),
            (r'(_{0,2}inline|naked|restrict|thread|typename)\b',
             Keyword.Reserved),
            (r'__(asm|int8|based|except|int16|stdcall|cdecl|fastcall|int32|'
             r'declspec|finally|int64|try|leave)\b', Keyword.Reserved),
            (r'(TRUE|FALSE|nil|NULL)\b', Name.Builtin),
            ('[a-zA-Z$_][a-zA-Z0-9$_]*:(?!:)', Name.Label),
            ('[a-zA-Z$_][a-zA-Z0-9$_]*', Name),
        ],
        'root': [
            include('whitespace'),
            # functions
            (r'((?:[a-zA-Z0-9_*\s])+?(?:\s|[*]))'    # return arguments
             r'([a-zA-Z$_][a-zA-Z0-9$_]*)'           # method name
             r'(\s*\([^;]*?\))'                      # signature
             r'(' + _ws + r')({)',
             bygroups(using(this), Name.Function,
                      using(this), Text, Punctuation),
             'function'),
            # function declarations
            (r'((?:[a-zA-Z0-9_*\s])+?(?:\s|[*]))'    # return arguments
             r'([a-zA-Z$_][a-zA-Z0-9$_]*)'           # method name
             r'(\s*\([^;]*?\))'                      # signature
             r'(' + _ws + r')(;)',
             bygroups(using(this), Name.Function,
                      using(this), Text, Punctuation)),
            (r'(@interface|@implementation)(\s+)', bygroups(Keyword, Text),
             'classname'),
            (r'(@class|@protocol)(\s+)', bygroups(Keyword, Text),
             'forward_classname'),
            (r'(\s*)(@end)(\s*)', bygroups(Text, Keyword, Text)),
            ('', Text, 'statement'),
        ],
        'classname' : [
            # interface definition that inherits
            ('([a-zA-Z$_][a-zA-Z0-9$_]*)(\s*:\s*)([a-zA-Z$_][a-zA-Z0-9$_]*)?',
             bygroups(Name.Class, Text, Name.Class), '#pop'),
            # interface definition for a category
            ('([a-zA-Z$_][a-zA-Z0-9$_]*)(\s*)(\([a-zA-Z$_][a-zA-Z0-9$_]*\))',
             bygroups(Name.Class, Text, Name.Label), '#pop'),
            # simple interface / implementation
            ('([a-zA-Z$_][a-zA-Z0-9$_]*)', Name.Class, '#pop')
        ],
        'forward_classname' : [
          ('([a-zA-Z$_][a-zA-Z0-9$_]*)(\s*,\s*)',
           bygroups(Name.Class, Text), 'forward_classname'),
          ('([a-zA-Z$_][a-zA-Z0-9$_]*)(\s*;?)',
           bygroups(Name.Class, Text), '#pop')
        ],
        'statement' : [
            include('whitespace'),
            include('statements'),
            ('[{}]', Punctuation),
            (';', Punctuation, '#pop'),
        ],
        'function': [
            include('whitespace'),
            include('statements'),
            (';', Punctuation),
            ('{', Punctuation, '#push'),
            ('}', Punctuation, '#pop'),
        ],
        'string': [
            (r'"', String, '#pop'),
            (r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|[0-7]{1,3})', String.Escape),
            (r'[^\\"\n]+', String), # all other characters
            (r'\\\n', String), # line continuation
            (r'\\', String), # stray backslash
        ],
        'macro': [
            (r'[^/\n]+', Comment.Preproc),
            (r'/[*](.|\n)*?[*]/', Comment.Multiline),
            (r'//.*?\n', Comment.Single, '#pop'),
            (r'/', Comment.Preproc),
            (r'(?<=\\)\n', Comment.Preproc),
            (r'\n', Comment.Preproc, '#pop'),
        ],
        'if0': [
            (r'^\s*#if.*?(?<!\\)\n', Comment.Preproc, '#push'),
            (r'^\s*#endif.*?(?<!\\)\n', Comment.Preproc, '#pop'),
            (r'.*?\n', Comment),
        ]
    }

    def analyse_text(text):
        if '@"' in text: # strings
            return True
        if re.match(r'\[[a-zA-Z0-9.]:', text): # message
            return True
        return False

class FortranLexer(RegexLexer):
    '''
    Lexer for FORTRAN 90 code.

    *New in Pygments 0.10.*
    '''
    name = 'Fortran'
    aliases = ['fortran']
    filenames = ['*.f', '*.f90']
    mimetypes = ['text/x-fortran']
    flags = re.IGNORECASE

    # Data Types: INTEGER, REAL, COMPLEX, LOGICAL, CHARACTER and DOUBLE PRECISION
    # Operators: **, *, +, -, /, <, >, <=, >=, ==, /=
    # Logical (?): NOT, AND, OR, EQV, NEQV

    # Builtins:
    # http://gcc.gnu.org/onlinedocs/gcc-3.4.6/g77/Table-of-Intrinsic-Functions.html

    tokens = {
        'root': [
            (r'!.*\n', Comment),
            include('strings'),
            include('core'),
            (r'[a-z][a-z0-9_]*', Name.Variable),
            include('nums'),
            (r'[\s]+', Text),
        ],
        'core': [
            # Statements
            (r'\b(ACCEPT|ALLOCATABLE|ALLOCATE|ARRAY|ASSIGN|BACKSPACE|BLOCK DATA|'
             r'BYTE|CALL|CASE|CLOSE|COMMON|CONTAINS|CONTINUE|CYCLE|DATA|'
             r'DEALLOCATE|DECODE|DIMENSION|DO|ENCODE|END FILE|ENDIF|END|ENTRY|'
             r'EQUIVALENCE|EXIT|EXTERNAL|EXTRINSIC|FORALL|FORMAT|FUNCTION|GOTO|'
             r'IF|IMPLICIT|INCLUDE|INQUIRE|INTENT|INTERFACE|INTRINSIC|MODULE|'
             r'NAMELIST|NULLIFY|NONE|OPEN|OPTIONAL|OPTIONS|PARAMETER|PAUSE|'
             r'POINTER|PRINT|PRIVATE|PROGRAM|PUBLIC|PURE|READ|RECURSIVE|RETURN|'
             r'REWIND|SAVE|SELECT|SEQUENCE|STOP|SUBROUTINE|TARGET|TYPE|USE|'
             r'VOLATILE|WHERE|WRITE|WHILE|THEN|ELSE|ENDIF)\s*\b',
             Keyword),

            # Data Types
            (r'\b(CHARACTER|COMPLEX|DOUBLE PRECISION|DOUBLE COMPLEX|INTEGER|'
             r'LOGICAL|REAL)\s*\b',
             Keyword.Type),

            # Operators
            (r'(\*\*|\*|\+|-|\/|<|>|<=|>=|==|\/=|=)', Operator),

            (r'(::)', Keyword.Declaration),

            (r'[(),:&%;]', Punctuation),

            # Intrinsics
            (r'\b(Abort|Abs|Access|AChar|ACos|AdjustL|AdjustR|AImag|AInt|Alarm|'
             r'All|Allocated|ALog|AMax|AMin|AMod|And|ANInt|Any|'
             r'ASin|Associated|ATan|BesJ|BesJN|BesY|BesYN|'
             r'Bit_Size|BTest|CAbs|CCos|Ceiling|CExp|Char|ChDir|ChMod|CLog|'
             r'Cmplx|Complex|Conjg|Cos|CosH|Count|CPU_Time|CShift|CSin|CSqRt|'
             r'CTime|DAbs|DACos|DASin|DATan|Date_and_Time|DbesJ|'
             r'DbesJ|DbesJN|DbesY|DbesY|DbesYN|Dble|DCos|DCosH|DDiM|DErF|DErFC|'
             r'DExp|Digits|DiM|DInt|DLog|DLog|DMax|DMin|DMod|DNInt|Dot_Product|'
             r'DProd|DSign|DSinH|DSin|DSqRt|DTanH|DTan|DTime|EOShift|Epsilon|'
             r'ErF|ErFC|ETime|Exit|Exp|Exponent|FDate|FGet|FGetC|Float|'
             r'Floor|Flush|FNum|FPutC|FPut|Fraction|FSeek|FStat|FTell|'
             r'GError|GetArg|GetCWD|GetEnv|GetGId|GetLog|GetPId|GetUId|'
             r'GMTime|HostNm|Huge|IAbs|IAChar|IAnd|IArgC|IBClr|IBits|'
             r'IBSet|IChar|IDate|IDiM|IDInt|IDNInt|IEOr|IErrNo|IFix|Imag|'
             r'ImagPart|Index|Int|IOr|IRand|IsaTty|IShft|IShftC|ISign|'
             r'ITime|Kill|Kind|LBound|Len|Len_Trim|LGe|LGt|Link|LLe|LLt|LnBlnk|'
             r'Loc|Log|Log|Logical|Long|LShift|LStat|LTime|MatMul|Max|'
             r'MaxExponent|MaxLoc|MaxVal|MClock|Merge|Min|MinExponent|MinLoc|'
             r'MinVal|Mod|Modulo|MvBits|Nearest|NInt|Not|Or|Pack|PError|'
             r'Precision|Present|Product|Radix|Rand|Random_Number|Random_Seed|'
             r'Range|Real|RealPart|Rename|Repeat|Reshape|RRSpacing|RShift|Scale|'
             r'Scan|Second|Selected_Int_Kind|Selected_Real_Kind|Set_Exponent|'
             r'Shape|Short|Sign|Signal|SinH|Sin|Sleep|Sngl|Spacing|Spread|SqRt|'
             r'SRand|Stat|Sum|SymLnk|System|System_Clock|Tan|TanH|Time|'
             r'Tiny|Transfer|Transpose|Trim|TtyNam|UBound|UMask|Unlink|Unpack|'
             r'Verify|XOr|ZAbs|ZCos|ZExp|ZLog|ZSin|ZSqRt)\s*\b',
             Name.Builtin),

            # Booleans
            (r'\.(true|false)\.', Name.Builtin),
            # Comparing Operators
            (r'\.(eq|ne|lt|le|gt|ge|not|and|or|eqv|neqv)\.', Operator.Word),
        ],

        'strings': [
            (r'(?s)"(\\\\|\\[0-7]+|\\.|[^"\\])*"', String.Double),
            (r"(?s)'(\\\\|\\[0-7]+|\\.|[^'\\])*'", String.Single),
        ],

        'nums': [
            (r'\d+(?![.Ee])', Number.Integer),
            (r'[+-]?\d*\.\d+([eE][-+]?\d+)?', Number.Float),
            (r'[+-]?\d+\.\d*([eE][-+]?\d+)?', Number.Float),
        ],
    }


class GLShaderLexer(RegexLexer):
    """
    GLSL (OpenGL Shader) lexer.

    *New in Pygments 1.1.*
    """
    name = 'GLSL'
    aliases = ['glsl']
    filenames = ['*.vert', '*.frag', '*.geo']
    mimetypes = ['text/x-glslsrc']

    tokens = {
        'root': [
            (r'^#.*', Comment.Preproc),
            (r'//.*', Comment.Single),
            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
            (r'\+|-|~|!=?|\*|/|%|<<|>>|<=?|>=?|==?|&&?|\^|\|\|?',
             Operator),
            (r'[?:]', Operator), # quick hack for ternary
            (r'\bdefined\b', Operator),
            (r'[;{}(),\[\]]', Punctuation),
            #FIXME when e is present, no decimal point needed
            (r'[+-]?\d*\.\d+([eE][-+]?\d+)?', Number.Float),
            (r'[+-]?\d+\.\d*([eE][-+]?\d+)?', Number.Float),
            (r'0[xX][0-9a-fA-F]*', Number.Hex),
            (r'0[0-7]*', Number.Oct),
            (r'[1-9][0-9]*', Number.Integer),
            (r'\b(attribute|const|uniform|varying|centroid|break|continue|'
             r'do|for|while|if|else|in|out|inout|float|int|void|bool|true|'
             r'false|invariant|discard|return|mat[234]|mat[234]x[234]|'
             r'vec[234]|[ib]vec[234]|sampler[123]D|samplerCube|'
             r'sampler[12]DShadow|struct)\b', Keyword),
            (r'\b(asm|class|union|enum|typedef|template|this|packed|goto|'
             r'switch|default|inline|noinline|volatile|public|static|extern|'
             r'external|interface|long|short|double|half|fixed|unsigned|'
             r'lowp|mediump|highp|precision|input|output|hvec[234]|'
             r'[df]vec[234]|sampler[23]DRect|sampler2DRectShadow|sizeof|'
             r'cast|namespace|using)\b', Keyword), #future use
            (r'[a-zA-Z_][a-zA-Z_0-9]*', Name),
            (r'\.', Punctuation),
            (r'\s+', Text),
        ],
    }


class PrologLexer(RegexLexer):
    """
    Lexer for Prolog files.
    """
    name = 'Prolog'
    aliases = ['prolog']
    filenames = ['*.prolog', '*.pro', '*.pl']
    mimetypes = ['text/x-prolog']

    flags = re.UNICODE

    tokens = {
        'root': [
            (r'^#.*', Comment.Single),
            (r'/\*', Comment.Multiline, 'nested-comment'),
            (r'%.*', Comment.Single),
            (r'[0-9]+', Number),
            (r'[\[\](){}|.,;!]', Punctuation),
            (r':-|-->', Punctuation),
            (r'"(?:\\x[0-9a-fA-F]+\\|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|'
             r'\\[0-7]+\\|\\[\w\W]|[^"])*"', String.Double),
            (r"'(?:''|[^'])*'", String.Atom), # quoted atom
            # Needs to not be followed by an atom.
            #(r'=(?=\s|[a-zA-Z\[])', Operator),
            (r'(is|<|>|=<|>=|==|=:=|=|/|//|\*|\+|-)(?=\s|[a-zA-Z0-9\[])',
             Operator),
            (r'(mod|div|not)\b', Operator),
            (r'_', Keyword), # The don't-care variable
            (r'([a-z]+)(:)', bygroups(Name.Namespace, Punctuation)),
            ('([a-z\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]'
             '[a-zA-Z0-9_$\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]*)'
             '(\\s*)(:-|-->)',
             bygroups(Name.Function, Text, Operator)), # function defn
            ('([a-z\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]'
             '[a-zA-Z0-9_$\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]*)'
             '(\\s*)(\\()',
             bygroups(Name.Function, Text, Punctuation)),
            ('[a-z\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]'
             '[a-zA-Z0-9_$\u00c0-\u1fff\u3040-\ud7ff\ue000-\uffef]*',
             String.Atom), # atom, characters
            # This one includes !
            ('[#&*+\\-./:<=>?@\\\\^~\u00a1-\u00bf\u2010-\u303f]+',
             String.Atom), # atom, graphics
            (r'[A-Z_][A-Za-z0-9_]*', Name.Variable),
            ('\\s+|[\u2000-\u200f\ufff0-\ufffe\uffef]', Text),
        ],
        'nested-comment': [
            (r'\*/', Comment.Multiline, '#pop'),
            (r'/\*', Comment.Multiline, '#push'),
            (r'[^*/]+', Comment.Multiline),
            (r'[*/]', Comment.Multiline),
        ],
    }

    def analyse_text(text):
        return ':-' in text


class CythonLexer(RegexLexer):
    """
    For Pyrex and `Cython <http://cython.org>`_ source code.

    *New in Pygments 1.1.*
    """

    name = 'Cython'
    aliases = ['cython', 'pyx']
    filenames = ['*.pyx', '*.pxd', '*.pxi']
    mimetypes = ['text/x-cython', 'application/x-cython']

    tokens = {
        'root': [
            (r'\n', Text),
            (r'^(\s*)("""(?:.|\n)*?""")', bygroups(Text, String.Doc)),
            (r"^(\s*)('''(?:.|\n)*?''')", bygroups(Text, String.Doc)),
            (r'[^\S\n]+', Text),
            (r'#.*$', Comment),
            (r'[]{}:(),;[]', Punctuation),
            (r'\\\n', Text),
            (r'\\', Text),
            (r'(in|is|and|or|not)\b', Operator.Word),
            (r'(<)([a-zA-Z0-9.?]+)(>)',
             bygroups(Punctuation, Keyword.Type, Punctuation)),
            (r'!=|==|<<|>>|[-~+/*%=<>&^|.?]', Operator),
            (r'(from)(\d+)(<=)(\s+)(<)(\d+)(:)',
             bygroups(Keyword, Number.Integer, Operator, Name, Operator,
                      Name, Punctuation)),
            include('keywords'),
            (r'(def|property)(\s+)', bygroups(Keyword, Text), 'funcname'),
            (r'(cp?def)(\s+)', bygroups(Keyword, Text), 'cdef'),
            (r'(class|struct)(\s+)', bygroups(Keyword, Text), 'classname'),
            (r'(from)(\s+)', bygroups(Keyword, Text), 'fromimport'),
            (r'(c?import)(\s+)', bygroups(Keyword, Text), 'import'),
            include('builtins'),
            include('backtick'),
            ('(?:[rR]|[uU][rR]|[rR][uU])"""', String, 'tdqs'),
            ("(?:[rR]|[uU][rR]|[rR][uU])'''", String, 'tsqs'),
            ('(?:[rR]|[uU][rR]|[rR][uU])"', String, 'dqs'),
            ("(?:[rR]|[uU][rR]|[rR][uU])'", String, 'sqs'),
            ('[uU]?"""', String, combined('stringescape', 'tdqs')),
            ("[uU]?'''", String, combined('stringescape', 'tsqs')),
            ('[uU]?"', String, combined('stringescape', 'dqs')),
            ("[uU]?'", String, combined('stringescape', 'sqs')),
            include('name'),
            include('numbers'),
        ],
        'keywords': [
            (r'(assert|break|by|continue|ctypedef|del|elif|else|except\??|exec|'
             r'finally|for|gil|global|if|include|lambda|nogil|pass|print|raise|'
             r'return|try|while|yield|as|with)\b', Keyword),
            (r'(DEF|IF|ELIF|ELSE)\b', Comment.Preproc),
        ],
        'builtins': [
            (r'(?<!\.)(__import__|abs|all|any|apply|basestring|bin|bool|buffer|'
             r'bytearray|bytes|callable|chr|classmethod|cmp|coerce|compile|'
             r'complex|delattr|dict|dir|divmod|enumerate|eval|execfile|exit|'
             r'file|filter|float|frozenset|getattr|globals|hasattr|hash|hex|id|'
             r'input|int|intern|isinstance|issubclass|iter|len|list|locals|'
             r'long|map|max|min|next|object|oct|open|ord|pow|property|range|'
             r'raw_input|reduce|reload|repr|reversed|round|set|setattr|slice|'
             r'sorted|staticmethod|str|sum|super|tuple|type|unichr|unicode|'
             r'vars|xrange|zip)\b', Name.Builtin),
            (r'(?<!\.)(self|None|Ellipsis|NotImplemented|False|True|NULL'
             r')\b', Name.Builtin.Pseudo),
            (r'(?<!\.)(ArithmeticError|AssertionError|AttributeError|'
             r'BaseException|DeprecationWarning|EOFError|EnvironmentError|'
             r'Exception|FloatingPointError|FutureWarning|GeneratorExit|IOError|'
             r'ImportError|ImportWarning|IndentationError|IndexError|KeyError|'
             r'KeyboardInterrupt|LookupError|MemoryError|NameError|'
             r'NotImplemented|NotImplementedError|OSError|OverflowError|'
             r'OverflowWarning|PendingDeprecationWarning|ReferenceError|'
             r'RuntimeError|RuntimeWarning|StandardError|StopIteration|'
             r'SyntaxError|SyntaxWarning|SystemError|SystemExit|TabError|'
             r'TypeError|UnboundLocalError|UnicodeDecodeError|'
             r'UnicodeEncodeError|UnicodeError|UnicodeTranslateError|'
             r'UnicodeWarning|UserWarning|ValueError|Warning|ZeroDivisionError'
             r')\b', Name.Exception),
        ],
        'numbers': [
            (r'(\d+\.?\d*|\d*\.\d+)([eE][+-]?[0-9]+)?', Number.Float),
            (r'0\d+', Number.Oct),
            (r'0[xX][a-fA-F0-9]+', Number.Hex),
            (r'\d+L', Number.Integer.Long),
            (r'\d+', Number.Integer)
        ],
        'backtick': [
            ('`.*?`', String.Backtick),
        ],
        'name': [
            (r'@[a-zA-Z0-9_]+', Name.Decorator),
            ('[a-zA-Z_][a-zA-Z0-9_]*', Name),
        ],
        'funcname': [
            ('[a-zA-Z_][a-zA-Z0-9_]*', Name.Function, '#pop')
        ],
        'cdef': [
            (r'(public|readonly|extern|api|inline)\b', Keyword.Reserved),
            (r'(struct|enum|union|class)\b', Keyword),
            (r'([a-zA-Z_][a-zA-Z0-9_]*)(\s*)(?=[(:#=]|$)',
             bygroups(Name.Function, Text), '#pop'),
            (r'([a-zA-Z_][a-zA-Z0-9_]*)(\s*)(,)',
             bygroups(Name.Function, Text, Punctuation)),
            (r'from\b', Keyword, '#pop'),
            (r'as\b', Keyword),
            (r':', Punctuation, '#pop'),
            (r'(?=["\'])', Text, '#pop'),
            (r'[a-zA-Z_][a-zA-Z0-9_]*', Keyword.Type),
            (r'.', Text),
        ],
        'classname': [
            ('[a-zA-Z_][a-zA-Z0-9_]*', Name.Class, '#pop')
        ],
        'import': [
            (r'(\s+)(as)(\s+)', bygroups(Text, Keyword, Text)),
            (r'[a-zA-Z_][a-zA-Z0-9_.]*', Name.Namespace),
            (r'(\s*)(,)(\s*)', bygroups(Text, Operator, Text)),
            (r'', Text, '#pop') # all else: go back
        ],
        'fromimport': [
            (r'(\s+)(c?import)\b', bygroups(Text, Keyword), '#pop'),
            (r'[a-zA-Z_.][a-zA-Z0-9_.]*', Name.Namespace),
            # ``cdef foo from "header"``, or ``for foo from 0 < i < 10``
            (r'', Text, '#pop'),
        ],
        'stringescape': [
            (r'\\([\\abfnrtv"\']|\n|N{.*?}|u[a-fA-F0-9]{4}|'
             r'U[a-fA-F0-9]{8}|x[a-fA-F0-9]{2}|[0-7]{1,3})', String.Escape)
        ],
        'strings': [
            (r'%(\([a-zA-Z0-9]+\))?[-#0 +]*([0-9]+|[*])?(\.([0-9]+|[*]))?'
             '[hlL]?[diouxXeEfFgGcrs%]', String.Interpol),
            (r'[^\\\'"%\n]+', String),
            # quotes, percents and backslashes must be parsed one at a time
            (r'[\'"\\]', String),
            # unhandled string formatting sign
            (r'%', String)
            # newlines are an error (use "nl" state)
        ],
        'nl': [
            (r'\n', String)
        ],
        'dqs': [
            (r'"', String, '#pop'),
            (r'\\\\|\\"|\\\n', String.Escape), # included here again for raw strings
            include('strings')
        ],
        'sqs': [
            (r"'", String, '#pop'),
            (r"\\\\|\\'|\\\n", String.Escape), # included here again for raw strings
            include('strings')
        ],
        'tdqs': [
            (r'"""', String, '#pop'),
            include('strings'),
            include('nl')
        ],
        'tsqs': [
            (r"'''", String, '#pop'),
            include('strings'),
            include('nl')
        ],
    }


class ValaLexer(RegexLexer):
    """
    For Vala source code with preprocessor directives.

    *New in Pygments 1.1.*
    """
    name = 'Vala'
    aliases = ['vala', 'vapi']
    filenames = ['*.vala', '*.vapi']
    mimetypes = ['text/x-vala']

    tokens = {
        'whitespace': [
            (r'^\s*#if\s+0', Comment.Preproc, 'if0'),
            (r'\n', Text),
            (r'\s+', Text),
            (r'\\\n', Text), # line continuation
            (r'//(\n|(.|\n)*?[^\\]\n)', Comment.Single),
            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
        ],
        'statements': [
            (r'L?"', String, 'string'),
            (r"L?'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'",
             String.Char),
            (r'(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+[lL]?', Number.Float),
            (r'(\d+\.\d*|\.\d+|\d+[fF])[fF]?', Number.Float),
            (r'0x[0-9a-fA-F]+[Ll]?', Number.Hex),
            (r'0[0-7]+[Ll]?', Number.Oct),
            (r'\d+[Ll]?', Number.Integer),
            (r'[~!%^&*+=|?:<>/-]', Operator),
            (r'(\[)(Compact|Immutable|(?:Boolean|Simple)Type)(\])',
             bygroups(Punctuation, Name.Decorator, Punctuation)),
            # TODO: "correctly" parse complex code attributes
            (r'(\[)(CCode|(?:Integer|Floating)Type)',
             bygroups(Punctuation, Name.Decorator)),
            (r'[()\[\],.]', Punctuation),
            (r'(as|base|break|case|catch|construct|continue|default|delete|do|'
             r'else|enum|finally|for|foreach|get|if|in|is|lock|new|out|params|'
             r'return|set|sizeof|switch|this|throw|try|typeof|while|yield)\b',
             Keyword),
            (r'(abstract|const|delegate|dynamic|ensures|extern|inline|internal|'
             r'override|owned|private|protected|public|ref|requires|signal|'
             r'static|throws|unowned|var|virtual|volatile|weak|yields)\b',
             Keyword.Declaration),
            (r'(namespace|using)(\s+)', bygroups(Keyword.Namespace, Text),
             'namespace'),
            (r'(class|errordomain|interface|struct)(\s+)',
             bygroups(Keyword.Declaration, Text), 'class'),
            (r'(\.)([a-zA-Z_][a-zA-Z0-9_]*)',
             bygroups(Operator, Name.Attribute)),
            # void is an actual keyword, others are in glib-2.0.vapi
            (r'(void|bool|char|double|float|int|int8|int16|int32|int64|long|'
             r'short|size_t|ssize_t|string|time_t|uchar|uint|uint8|uint16|'
             r'uint32|uint64|ulong|unichar|ushort)\b', Keyword.Type),
            (r'(true|false|null)\b', Name.Builtin),
            ('[a-zA-Z_][a-zA-Z0-9_]*', Name),
        ],
        'root': [
            include('whitespace'),
            ('', Text, 'statement'),
        ],
        'statement' : [
            include('whitespace'),
            include('statements'),
            ('[{}]', Punctuation),
            (';', Punctuation, '#pop'),
        ],
        'string': [
            (r'"', String, '#pop'),
            (r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|[0-7]{1,3})', String.Escape),
            (r'[^\\"\n]+', String), # all other characters
            (r'\\\n', String), # line continuation
            (r'\\', String), # stray backslash
        ],
        'if0': [
            (r'^\s*#if.*?(?<!\\)\n', Comment.Preproc, '#push'),
            (r'^\s*#el(?:se|if).*\n', Comment.Preproc, '#pop'),
            (r'^\s*#endif.*?(?<!\\)\n', Comment.Preproc, '#pop'),
            (r'.*?\n', Comment),
        ],
        'class': [
            (r'[a-zA-Z_][a-zA-Z0-9_]*', Name.Class, '#pop')
        ],
        'namespace': [
            (r'[a-zA-Z_][a-zA-Z0-9_.]*', Name.Namespace, '#pop')
        ],
    }


class OocLexer(RegexLexer):
    """
    For `Ooc <http://ooc-lang.org/>`_ source code

    *New in Pygments 1.2.*
    """
    name = 'Ooc'
    aliases = ['ooc']
    filenames = ['*.ooc']
    mimetypes = ['text/x-ooc']

    tokens = {
        'root': [
            (r'\b(class|interface|implement|abstract|extends|from|'
             r'this|super|new|const|final|static|import|use|extern|'
             r'inline|proto|break|continue|fallthrough|operator|if|else|for|'
             r'while|do|switch|case|as|in|version|return|true|false|null)\b',
             Keyword),
            (r'include\b', Keyword, 'include'),
            (r'(cover)([ \t]+)(from)([ \t]+)([a-zA-Z0-9_]+[*@]?)',
             bygroups(Keyword, Text, Keyword, Text, Name.Class)),
            (r'(func)((?:[ \t]|\\\n)+)(~[a-z_][a-zA-Z0-9_]*)',
             bygroups(Keyword, Text, Name.Function)),
            (r'\bfunc\b', Keyword),
            # Note: %= and ^= not listed on http://ooc-lang.org/syntax
            (r'//.*', Comment),
            (r'(?s)/\*.*?\*/', Comment.Multiline),
            (r'(==?|\+=?|-[=>]?|\*=?|/=?|:=|!=?|%=?|\?|>{1,3}=?|<{1,3}=?|\.\.|'
             r'&&?|\|\|?|\^=?)', Operator),
            (r'(\.)([ \t]*)([a-z]\w*)', bygroups(Operator, Text,
                                                 Name.Function)),
            (r'[A-Z][A-Z0-9_]+', Name.Constant),
            (r'[A-Z][a-zA-Z0-9_]*([@*]|\[[ \t]*\])?', Name.Class),

            (r'([a-z][a-zA-Z0-9_]*(?:~[a-z][a-zA-Z0-9_]*)?)((?:[ \t]|\\\n)*)(?=\()',
             bygroups(Name.Function, Text)),
            (r'[a-z][a-zA-Z0-9_]*', Name.Variable),

            # : introduces types
            (r'[:(){}\[\];,]', Punctuation),

            (r'0x[0-9a-fA-F]+', Number.Hex),
            (r'0c[0-9]+', Number.Oct),
            (r'0b[01]+', Number.Binary),
            (r'[0-9_]\.[0-9_]*(?!\.)', Number.Float),
            (r'[0-9_]+', Number.Decimal),

            (r'"(?:\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\"])*"',
             String.Double),
            (r"'(?:\\.|\\[0-9]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'",
             String.Char),
            (r'@', Punctuation), # pointer dereference
            (r'\.', Punctuation), # imports or chain operator

            (r'\\[ \t\n]', Text),
            (r'[ \t]+', Text),
        ],
        'include': [
            (r'[\w/]+', Name),
            (r',', Punctuation),
            (r'[ \t]', Text),
            (r'[;\n]', Text, '#pop'),
        ],
    }


class GoLexer(RegexLexer):
    """
    For `Go <http://golang.org>`_ source.
    """
    name = 'Go'
    filenames = ['*.go']
    aliases = ['go']
    mimetypes = ['text/x-gosrc']

    tokens = {
        'root': [
            (r'\n', Text),
            (r'\s+', Text),
            (r'\\\n', Text), # line continuations
            (r'//(.*?)\n', Comment.Single),
            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
            (r'(break|default|func|interface|select'
             r'|case|defer|go|map|struct'
             r'|chan|else|goto|package|switch'
             r'|const|fallthrough|if|range|type'
             r'|continue|for|import|return|var)\b', Keyword
            ),
            # It seems the builtin types aren't actually keywords.
            (r'(uint8|uint16|uint32|uint64'
             r'|int8|int16|int32|int64'
             r'|float32|float64|byte'
             r'|uint|int|float|uintptr'
             r'|string|close|closed|len|cap|new|make)\b', Name.Builtin
            ),
            # float_lit
            (r'\d+(\.\d+[eE][+\-]?\d+|'
             r'\.\d*|[eE][+\-]?\d+)', Number.Float),
            (r'\.\d+([eE][+\-]?\d+)?', Number.Float),
            # int_lit
            # -- octal_lit
            (r'0[0-7]+', Number.Oct),
            # -- hex_lit
            (r'0[xX][0-9a-fA-F]+', Number.Hex),
            # -- decimal_lit
            (r'(0|[1-9][0-9]*)', Number.Integer),
            # char_lit
            (r"""'(\\['"\\abfnrtv]|\\x[0-9a-fA-F]{2}|\\[0-7]{1,3}"""
             r"""|\\u[0-9a-fA-F]{4}|\\U[0-9a-fA-F]{8}|[^\\])'""",
             String.Char
            ),
            # StringLiteral
            # -- raw_string_lit
            (r'`[^`]*`', String),
            # -- interpreted_string_lit
            (r'"(\\\\|\\"|[^"])*"', String),
            # Tokens
            (r'(<<=|>>=|<<|>>|<=|>=|&\^=|&\^|\+=|-=|\*=|/=|%=|&=|\|=|&&|\|\|'
             r'|<-|\+\+|--|==|!=|:=|\.\.\.)|[+\-*/%&|^<>=!()\[\]{}.,;:]',
             Punctuation
            ),
            # identifier
            (r'[a-zA-Z_]\w*', Name),
        ]
    }


class FelixLexer(RegexLexer):
    """
    For `Felix <http://www.felix-lang.org>`_ source code.

    *New in Pygments 1.2.*
    """

    name = 'Felix'
    aliases = ['felix', 'flx']
    filenames = ['*.flx', '*.flxh']
    mimetypes = ['text/x-felix']

    preproc = [
        'elif', 'else', 'endif', 'if', 'ifdef', 'ifndef',
    ]

    keywords = [
        '_', '_deref', 'all', 'as',
        'assert', 'attempt', 'call', 'callback', 'case', 'caseno', 'cclass',
        'code', 'compound', 'ctypes', 'do', 'done', 'downto', 'elif', 'else',
        'endattempt', 'endcase', 'endif', 'endmatch', 'enum', 'except',
        'exceptions', 'expect', 'finally', 'for', 'forall', 'forget', 'fork',
        'functor', 'goto', 'ident', 'if', 'incomplete', 'inherit', 'instance',
        'interface', 'jump', 'lambda', 'loop', 'match', 'module', 'namespace',
        'new', 'noexpand', 'nonterm', 'obj', 'of', 'open', 'parse', 'raise',
        'regexp', 'reglex', 'regmatch', 'rename', 'return', 'the', 'then',
        'to', 'type', 'typecase', 'typedef', 'typematch', 'typeof', 'upto',
        'when', 'whilst', 'with', 'yield',
    ]

    keyword_directives = [
        '_gc_pointer', '_gc_type', 'body', 'comment', 'const', 'export',
        'header', 'inline', 'lval', 'macro', 'noinline', 'noreturn',
        'package', 'private', 'pod', 'property', 'public', 'publish',
        'requires', 'todo', 'virtual', 'use',
    ]

    keyword_declarations = [
        'def', 'let', 'ref', 'val', 'var',
    ]

    keyword_types = [
        'unit', 'void', 'any', 'bool',
        'byte',  'offset',
        'address', 'caddress', 'cvaddress', 'vaddress',
        'tiny', 'short', 'int', 'long', 'vlong',
        'utiny', 'ushort', 'vshort', 'uint', 'ulong', 'uvlong',
        'int8', 'int16', 'int32', 'int64',
        'uint8', 'uint16', 'uint32', 'uint64',
        'float', 'double', 'ldouble',
        'complex', 'dcomplex', 'lcomplex',
        'imaginary', 'dimaginary', 'limaginary',
        'char', 'wchar', 'uchar',
        'charp', 'charcp', 'ucharp', 'ucharcp',
        'string', 'wstring', 'ustring',
        'cont',
        'array', 'varray', 'list',
        'lvalue', 'opt', 'slice',
    ]

    keyword_constants = [
        'false', 'true',
    ]

    operator_words = [
        'and', 'not', 'in', 'is', 'isin', 'or', 'xor',
    ]

    name_builtins = [
        '_svc', 'while',
    ]

    name_pseudo = [
        'root', 'self', 'this',
    ]

    decimal_suffixes = '([tTsSiIlLvV]|ll|LL|([iIuU])(8|16|32|64))?'

    tokens = {
        'root': [
            include('whitespace'),

            # Keywords
            (r'(axiom|ctor|fun|gen|proc|reduce|union)\b', Keyword,
             'funcname'),
            (r'(class|cclass|cstruct|obj|struct)\b', Keyword, 'classname'),
            (r'(instance|module|typeclass)\b', Keyword, 'modulename'),

            (r'(%s)\b' % '|'.join(keywords), Keyword),
            (r'(%s)\b' % '|'.join(keyword_directives), Name.Decorator),
            (r'(%s)\b' % '|'.join(keyword_declarations), Keyword.Declaration),
            (r'(%s)\b' % '|'.join(keyword_types), Keyword.Type),
            (r'(%s)\b' % '|'.join(keyword_constants), Keyword.Constant),

            # Operators
            include('operators'),

            # Float Literal
            # -- Hex Float
            (r'0[xX]([0-9a-fA-F_]*\.[0-9a-fA-F_]+|[0-9a-fA-F_]+)'
             r'[pP][+\-]?[0-9_]+[lLfFdD]?', Number.Float),
            # -- DecimalFloat
            (r'[0-9_]+(\.[0-9_]+[eE][+\-]?[0-9_]+|'
             r'\.[0-9_]*|[eE][+\-]?[0-9_]+)[lLfFdD]?', Number.Float),
            (r'\.(0|[1-9][0-9_]*)([eE][+\-]?[0-9_]+)?[lLfFdD]?',
             Number.Float),

            # IntegerLiteral
            # -- Binary
            (r'0[Bb][01_]+%s' % decimal_suffixes, Number),
            # -- Octal
            (r'0[0-7_]+%s' % decimal_suffixes, Number.Oct),
            # -- Hexadecimal
            (r'0[xX][0-9a-fA-F_]+%s' % decimal_suffixes, Number.Hex),
            # -- Decimal
            (r'(0|[1-9][0-9_]*)%s' % decimal_suffixes, Number.Integer),

            # Strings
            ('([rR][cC]?|[cC][rR])"""', String, 'tdqs'),
            ("([rR][cC]?|[cC][rR])'''", String, 'tsqs'),
            ('([rR][cC]?|[cC][rR])"', String, 'dqs'),
            ("([rR][cC]?|[cC][rR])'", String, 'sqs'),
            ('[cCfFqQwWuU]?"""', String, combined('stringescape', 'tdqs')),
            ("[cCfFqQwWuU]?'''", String, combined('stringescape', 'tsqs')),
            ('[cCfFqQwWuU]?"', String, combined('stringescape', 'dqs')),
            ("[cCfFqQwWuU]?'", String, combined('stringescape', 'sqs')),

            # Punctuation
            (r'[\[\]{}:(),;?]', Punctuation),

            # Labels
            (r'[a-zA-Z_]\w*:>', Name.Label),

            # Identifiers
            (r'(%s)\b' % '|'.join(name_builtins), Name.Builtin),
            (r'(%s)\b' % '|'.join(name_pseudo), Name.Builtin.Pseudo),
            (r'[a-zA-Z_]\w*', Name),
        ],
        'whitespace': [
            (r'\n', Text),
            (r'\s+', Text),

            include('comment'),

            # Preprocessor
            (r'#\s*if\s+0', Comment.Preproc, 'if0'),
            (r'#', Comment.Preproc, 'macro'),
        ],
        'operators': [
            (r'(%s)\b' % '|'.join(operator_words), Operator.Word),
            (r'!=|==|<<|>>|\|\||&&|[-~+/*%=<>&^|.$]', Operator),
        ],
        'comment': [
            (r'//(.*?)\n', Comment.Single),
            (r'/[*]', Comment.Multiline, 'comment2'),
        ],
        'comment2': [
            (r'[^\/*]', Comment.Multiline),
            (r'/[*]', Comment.Multiline, '#push'),
            (r'[*]/', Comment.Multiline, '#pop'),
            (r'[\/*]', Comment.Multiline),
        ],
        'if0': [
            (r'^\s*#if.*?(?<!\\)\n', Comment, '#push'),
            (r'^\s*#endif.*?(?<!\\)\n', Comment, '#pop'),
            (r'.*?\n', Comment),
        ],
        'macro': [
            include('comment'),
            (r'(import|include)(\s+)(<[^>]*?>)',
             bygroups(Comment.Preproc, Text, String), '#pop'),
            (r'(import|include)(\s+)("[^"]*?")',
             bygroups(Comment.Preproc, Text, String), '#pop'),
            (r"(import|include)(\s+)('[^']*?')",
             bygroups(Comment.Preproc, Text, String), '#pop'),
            (r'[^/\n]+', Comment.Preproc),
            ##(r'/[*](.|\n)*?[*]/', Comment),
            ##(r'//.*?\n', Comment, '#pop'),
            (r'/', Comment.Preproc),
            (r'(?<=\\)\n', Comment.Preproc),
            (r'\n', Comment.Preproc, '#pop'),
        ],
        'funcname': [
            include('whitespace'),
            (r'[a-zA-Z_]\w*', Name.Function, '#pop'),
            # anonymous functions
            (r'(?=\()', Text, '#pop'),
        ],
        'classname': [
            include('whitespace'),
            (r'[a-zA-Z_]\w*', Name.Class, '#pop'),
            # anonymous classes
            (r'(?=\{)', Text, '#pop'),
        ],
        'modulename': [
            include('whitespace'),
            (r'\[', Punctuation, ('modulename2', 'tvarlist')),
            (r'', Error, 'modulename2'),
        ],
        'modulename2': [
            include('whitespace'),
            (r'([a-zA-Z_]\w*)', Name.Namespace, '#pop:2'),
        ],
        'tvarlist': [
            include('whitespace'),
            include('operators'),
            (r'\[', Punctuation, '#push'),
            (r'\]', Punctuation, '#pop'),
            (r',', Punctuation),
            (r'(with|where)\b', Keyword),
            (r'[a-zA-Z_]\w*', Name),
        ],
        'stringescape': [
            (r'\\([\\abfnrtv"\']|\n|N{.*?}|u[a-fA-F0-9]{4}|'
             r'U[a-fA-F0-9]{8}|x[a-fA-F0-9]{2}|[0-7]{1,3})', String.Escape)
        ],
        'strings': [
            (r'%(\([a-zA-Z0-9]+\))?[-#0 +]*([0-9]+|[*])?(\.([0-9]+|[*]))?'
             '[hlL]?[diouxXeEfFgGcrs%]', String.Interpol),
            (r'[^\\\'"%\n]+', String),
            # quotes, percents and backslashes must be parsed one at a time
            (r'[\'"\\]', String),
            # unhandled string formatting sign
            (r'%', String)
            # newlines are an error (use "nl" state)
        ],
        'nl': [
            (r'\n', String)
        ],
        'dqs': [
            (r'"', String, '#pop'),
            # included here again for raw strings
            (r'\\\\|\\"|\\\n', String.Escape),
            include('strings')
        ],
        'sqs': [
            (r"'", String, '#pop'),
            # included here again for raw strings
            (r"\\\\|\\'|\\\n", String.Escape),
            include('strings')
        ],
        'tdqs': [
            (r'"""', String, '#pop'),
            include('strings'),
            include('nl')
        ],
        'tsqs': [
            (r"'''", String, '#pop'),
            include('strings'),
            include('nl')
        ],
     }


class AdaLexer(RegexLexer):
    """
    For Ada source code.

    *New in Pygments 1.3.*
    """

    name = 'Ada'
    aliases = ['ada', 'ada95' 'ada2005']
    filenames = ['*.adb', '*.ads', '*.ada']
    mimetypes = ['text/x-ada']

    flags = re.MULTILINE | re.I  # Ignore case

    _ws = r'(?:\s|//.*?\n|/[*].*?[*]/)+'

    tokens = {
        'root': [
            (r'[^\S\n]+', Text),
            (r'--.*?\n', Comment.Single),
            (r'[^\S\n]+', Text),
            (r'function|procedure|entry', Keyword.Declaration, 'subprogram'),
            (r'(subtype|type)(\s+)([a-z0-9_]+)',
             bygroups(Keyword.Declaration, Text, Keyword.Type), 'type_def'),
            (r'task|protected', Keyword.Declaration),
            (r'(subtype)(\s+)', bygroups(Keyword.Declaration, Text)),
            (r'(end)(\s+)', bygroups(Keyword.Reserved, Text), 'end'),
            (r'(pragma)(\s+)([a-zA-Z0-9_]+)', bygroups(Keyword.Reserved, Text,
                                                       Comment.Preproc)),
            (r'(true|false|null)\b', Keyword.Constant),
            (r'(Byte|Character|Float|Integer|Long_Float|Long_Integer|'
             r'Long_Long_Float|Long_Long_Integer|Natural|Positive|Short_Float|'
             r'Short_Integer|Short_Short_Float|Short_Short_Integer|String|'
             r'Wide_String|Duration)\b', Keyword.Type),
            (r'(and(\s+then)?|in|mod|not|or(\s+else)|rem)\b', Operator.Word),
            (r'generic|private', Keyword.Declaration),
            (r'package', Keyword.Declaration, 'package'),
            (r'array\b', Keyword.Reserved, 'array_def'),
            (r'(with|use)(\s+)', bygroups(Keyword.Namespace, Text), 'import'),
            (r'([a-z0-9_]+)(\s*)(:)(\s*)(constant)',
             bygroups(Name.Constant, Text, Punctuation, Text,
                      Keyword.Reserved)),
            (r'<<[a-z0-9_]+>>', Name.Label),
            (r'([a-z0-9_]+)(\s*)(:)(\s*)(declare|begin|loop|for|while)',
             bygroups(Name.Label, Text, Punctuation, Text, Keyword.Reserved)),
            (r'\b(abort|abs|abstract|accept|access|aliased|all|array|at|begin|'
             r'body|case|constant|declare|delay|delta|digits|do|else|elsif|end|'
             r'entry|exception|exit|interface|for|goto|if|is|limited|loop|new|'
             r'null|of|or|others|out|overriding|pragma|protected|raise|range|'
             r'record|renames|requeue|return|reverse|select|separate|subtype|'
             r'synchronized|task|tagged|terminate|then|type|until|when|while|'
             r'xor)\b',
             Keyword.Reserved),
            (r'"[^"]*"', String),
            include('attribute'),
            include('numbers'),
            (r"'[^']'", String.Character),
            (r'([a-z0-9_]+)(\s*|[(,])', bygroups(Name, using(this))),
            (r"(<>|=>|:=|[\(\)\|:;,.'])", Punctuation),
            (r'[*<>+=/&-]', Operator),
            (r'\n+', Text),
        ],
        'numbers' : [
            (r'[0-9_]+#[0-9a-f]+#', Number.Hex),
            (r'[0-9_]+\.[0-9_]*', Number.Float),
            (r'[0-9_]+', Number.Integer),
        ],
        'attribute' : [
            (r"(')([a-zA-Z0-9_]+)", bygroups(Punctuation, Name.Attribute)),
        ],
        'subprogram' : [
            (r'\(', Punctuation, ('#pop', 'formal_part')),
            (r';', Punctuation, '#pop'),
            (r'is\b', Keyword.Reserved, '#pop'),
            (r'"[^"]+"|[a-z0-9_]+', Name.Function),
            include('root'),
        ],
        'end' : [
            ('(if|case|record|loop|select)', Keyword.Reserved),
            ('"[^"]+"|[a-zA-Z0-9_]+', Name.Function),
            ('[\n\s]+', Text),
            (';', Punctuation, '#pop'),
        ],
        'type_def': [
            (r';', Punctuation, '#pop'),
            (r'\(', Punctuation, 'formal_part'),
            (r'with|and|use', Keyword.Reserved),
            (r'array\b', Keyword.Reserved, ('#pop', 'array_def')),
            (r'record\b', Keyword.Reserved, ('formal_part')),
            include('root'),
        ],
        'array_def' : [
            (r';', Punctuation, '#pop'),
            (r'([a-z0-9_]+)(\s+)(range)', bygroups(Keyword.Type, Text,
                                                   Keyword.Reserved)),
            include('root'),
        ],
        'import': [
            (r'[a-z0-9_.]+', Name.Namespace, '#pop'),
        ],
        'formal_part' : [
            (r'\)', Punctuation, '#pop'),
            (r'([a-z0-9_]+)(\s*)(,|:[^=])', bygroups(Name.Variable,
                                                     Text, Punctuation)),
            (r'(in|not|null|out|access)\b', Keyword.Reserved),
            include('root'),
        ],
        'package': [
            ('body', Keyword.Declaration),
            ('is\s+new|renames', Keyword.Reserved),
            ('is', Keyword.Reserved, '#pop'),
            (';', Punctuation, '#pop'),
            ('\(', Punctuation, 'package_instantiation'),
            ('([a-zA-Z0-9_.]+)', Name.Class),
            include('root'),
        ],
        'package_instantiation': [
            (r'("[^"]+"|[a-z0-9_]+)(\s+)(=>)', bygroups(Name.Variable,
                                                        Text, Punctuation)),
            (r'[a-z0-9._\'"]', Text),
            (r'\)', Punctuation, '#pop'),
            include('root'),
        ],
    }


class Modula2Lexer(RegexLexer):
    """
    For `Modula-2 <http://www.modula2.org/>`_ source code.

    Additional options that determine which keywords are highlighted:

    `pim`
        Select PIM Modula-2 dialect (default: True).
    `iso`
        Select ISO Modula-2 dialect (default: False).
    `objm2`
        Select Objective Modula-2 dialect (default: False).
    `gm2ext`
        Also highlight GNU extensions (default: False).

    *New in Pygments 1.3.*
    """
    name = 'Modula-2'
    aliases = ['modula2', 'm2']
    filenames = ['*.def', '*.mod']
    mimetypes = ['text/x-modula2']

    flags = re.MULTILINE | re.DOTALL

    tokens = {
        'whitespace': [
            (r'\n+', Text), # blank lines
            (r'\s+', Text), # whitespace
        ],
        'identifiers': [
            (r'([a-zA-Z_\$][a-zA-Z0-9_\$]*)', Name),
        ],
        'numliterals': [
            (r'[01]+B', Number.Binary),        # binary number (ObjM2)
            (r'[0-7]+B', Number.Oct),          # octal number (PIM + ISO)
            (r'[0-7]+C', Number.Oct),          # char code (PIM + ISO)
            (r'[0-9A-F]+C', Number.Hex),       # char code (ObjM2)
            (r'[0-9A-F]+H', Number.Hex),       # hexadecimal number
            (r'[0-9]+\.[0-9]+E[+-][0-9]+', Number.Float), # real number
            (r'[0-9]+\.[0-9]+', Number.Float), # real number
            (r'[0-9]+', Number.Integer),       # decimal whole number
        ],
        'strings': [
            (r"'(\\\\|\\'|[^'])*'", String), # single quoted string
            (r'"(\\\\|\\"|[^"])*"', String), # double quoted string
        ],
        'operators': [
            (r'[*/+=#~&<>\^-]', Operator),
            (r':=', Operator),   # assignment
            (r'@', Operator),    # pointer deref (ISO)
            (r'\.\.', Operator), # ellipsis or range
            (r'`', Operator),    # Smalltalk message (ObjM2)
            (r'::', Operator),   # type conversion (ObjM2)
        ],
        'punctuation': [
            (r'[\(\)\[\]{},.:;|]', Punctuation),
        ],
        'comments': [
            (r'//.*?\n', Comment.Single),       # ObjM2
            (r'/\*(.*?)\*/', Comment.Multiline), # ObjM2
            (r'\(\*([^\$].*?)\*\)', Comment.Multiline),
            # TO DO: nesting of (* ... *) comments
        ],
        'pragmas': [
            (r'\(\*\$(.*?)\*\)', Comment.Preproc), # PIM
            (r'<\*(.*?)\*>', Comment.Preproc),     # ISO + ObjM2
        ],
        'root': [
            include('whitespace'),
            include('comments'),
            include('pragmas'),
            include('identifiers'),
            include('numliterals'),
            include('strings'),
            include('operators'),
            include('punctuation'),
        ]
    }

    pim_reserved_words = [
        # 40 reserved words
        'AND', 'ARRAY', 'BEGIN', 'BY', 'CASE', 'CONST', 'DEFINITION',
        'DIV', 'DO', 'ELSE', 'ELSIF', 'END', 'EXIT', 'EXPORT', 'FOR',
        'FROM', 'IF', 'IMPLEMENTATION', 'IMPORT', 'IN', 'LOOP', 'MOD',
        'MODULE', 'NOT', 'OF', 'OR', 'POINTER', 'PROCEDURE', 'QUALIFIED',
        'RECORD', 'REPEAT', 'RETURN', 'SET', 'THEN', 'TO', 'TYPE',
        'UNTIL', 'VAR', 'WHILE', 'WITH',
    ]

    pim_pervasives = [
        # 31 pervasives
        'ABS', 'BITSET', 'BOOLEAN', 'CAP', 'CARDINAL', 'CHAR', 'CHR', 'DEC',
        'DISPOSE', 'EXCL', 'FALSE', 'FLOAT', 'HALT', 'HIGH', 'INC', 'INCL',
        'INTEGER', 'LONGINT', 'LONGREAL', 'MAX', 'MIN', 'NEW', 'NIL', 'ODD',
        'ORD', 'PROC', 'REAL', 'SIZE', 'TRUE', 'TRUNC', 'VAL',
    ]

    iso_reserved_words = [
        # 46 reserved words
        'AND', 'ARRAY', 'BEGIN', 'BY', 'CASE', 'CONST', 'DEFINITION', 'DIV',
        'DO', 'ELSE', 'ELSIF', 'END', 'EXCEPT', 'EXIT', 'EXPORT', 'FINALLY',
        'FOR', 'FORWARD', 'FROM', 'IF', 'IMPLEMENTATION', 'IMPORT', 'IN',
        'LOOP', 'MOD', 'MODULE', 'NOT', 'OF', 'OR', 'PACKEDSET', 'POINTER',
        'PROCEDURE', 'QUALIFIED', 'RECORD', 'REPEAT', 'REM', 'RETRY',
        'RETURN', 'SET', 'THEN', 'TO', 'TYPE', 'UNTIL', 'VAR', 'WHILE',
        'WITH',
    ]

    iso_pervasives = [
        # 42 pervasives
        'ABS', 'BITSET', 'BOOLEAN', 'CAP', 'CARDINAL', 'CHAR', 'CHR', 'CMPLX',
        'COMPLEX', 'DEC', 'DISPOSE', 'EXCL', 'FALSE', 'FLOAT', 'HALT', 'HIGH',
        'IM', 'INC', 'INCL', 'INT', 'INTEGER', 'INTERRUPTIBLE', 'LENGTH',
        'LFLOAT', 'LONGCOMPLEX', 'LONGINT', 'LONGREAL', 'MAX', 'MIN', 'NEW',
        'NIL', 'ODD', 'ORD', 'PROC', 'PROTECTION', 'RE', 'REAL', 'SIZE',
        'TRUE', 'TRUNC', 'UNINTERRUBTIBLE', 'VAL',
    ]

    objm2_reserved_words = [
        # base language, 42 reserved words
        'AND', 'ARRAY', 'BEGIN', 'BY', 'CASE', 'CONST', 'DEFINITION', 'DIV',
        'DO', 'ELSE', 'ELSIF', 'END', 'ENUM', 'EXIT', 'FOR', 'FROM', 'IF',
        'IMMUTABLE', 'IMPLEMENTATION', 'IMPORT', 'IN', 'IS', 'LOOP', 'MOD',
        'MODULE', 'NOT', 'OF', 'OPAQUE', 'OR', 'POINTER', 'PROCEDURE',
        'RECORD', 'REPEAT', 'RETURN', 'SET', 'THEN', 'TO', 'TYPE',
        'UNTIL', 'VAR', 'VARIADIC', 'WHILE',
        # OO extensions, 16 reserved words
        'BYCOPY', 'BYREF', 'CLASS', 'CONTINUE', 'CRITICAL', 'INOUT', 'METHOD',
        'ON', 'OPTIONAL', 'OUT', 'PRIVATE', 'PROTECTED', 'PROTOCOL', 'PUBLIC',
        'SUPER', 'TRY',
    ]

    objm2_pervasives = [
        # base language, 38 pervasives
        'ABS', 'BITSET', 'BOOLEAN', 'CARDINAL', 'CHAR', 'CHR', 'DISPOSE',
        'FALSE', 'HALT', 'HIGH', 'INTEGER', 'INRANGE', 'LENGTH', 'LONGCARD',
        'LONGINT', 'LONGREAL', 'MAX', 'MIN', 'NEG', 'NEW', 'NEXTV', 'NIL',
        'OCTET', 'ODD', 'ORD', 'PRED', 'PROC', 'READ', 'REAL', 'SUCC', 'TMAX',
        'TMIN', 'TRUE', 'TSIZE', 'UNICHAR', 'VAL', 'WRITE', 'WRITEF',
        # OO extensions, 3 pervasives
        'OBJECT', 'NO', 'YES',
    ]

    gnu_reserved_words = [
        # 10 additional reserved words
        'ASM', '__ATTRIBUTE__', '__BUILTIN__', '__COLUMN__', '__DATE__',
        '__FILE__', '__FUNCTION__', '__LINE__', '__MODULE__', 'VOLATILE',
    ]

    gnu_pervasives = [
        # 21 identifiers, actually from pseudo-module SYSTEM
        # but we will highlight them as if they were pervasives
        'BITSET8', 'BITSET16', 'BITSET32', 'CARDINAL8', 'CARDINAL16',
        'CARDINAL32', 'CARDINAL64', 'COMPLEX32', 'COMPLEX64', 'COMPLEX96',
        'COMPLEX128', 'INTEGER8', 'INTEGER16', 'INTEGER32', 'INTEGER64',
        'REAL8', 'REAL16', 'REAL32', 'REAL96', 'REAL128', 'THROW',
    ]

    def __init__(self, **options):
        self.reserved_words = set()
        self.pervasives = set()
        # ISO Modula-2
        if get_bool_opt(options, 'iso', False):
            self.reserved_words.update(self.iso_reserved_words)
            self.pervasives.update(self.iso_pervasives)
        # Objective Modula-2
        elif get_bool_opt(options, 'objm2', False):
            self.reserved_words.update(self.objm2_reserved_words)
            self.pervasives.update(self.objm2_pervasives)
        # PIM Modula-2 (DEFAULT)
        else:
            self.reserved_words.update(self.pim_reserved_words)
            self.pervasives.update(self.pim_pervasives)
        # GNU extensions
        if get_bool_opt(options, 'gm2ext', False):
            self.reserved_words.update(self.gnu_reserved_words)
            self.pervasives.update(self.gnu_pervasives)
        # initialise
        RegexLexer.__init__(self, **options)

    def get_tokens_unprocessed(self, text):
        for index, token, value in \
            RegexLexer.get_tokens_unprocessed(self, text):
            # check for reserved words and pervasives
            if token is Name:
                if value in self.reserved_words:
                    token = Keyword.Reserved
                elif value in self.pervasives:
                    token = Keyword.Pervasive
            # return result
            yield index, token, value


class BlitzMaxLexer(RegexLexer):
    """
    For `BlitzMax <http://blitzbasic.com>`_ source code.

    *New in Pygments 1.4.*
    """

    name = 'BlitzMax'
    aliases = ['blitzmax', 'bmax']
    filenames = ['*.bmx']
    mimetypes = ['text/x-bmx']

    bmax_vopwords = r'\b(Shl|Shr|Sar|Mod)\b'
    bmax_sktypes = r'@{1,2}|[!#$%]'
    bmax_lktypes = r'\b(Int|Byte|Short|Float|Double|Long)\b'
    bmax_name = r'[a-z_][a-z0-9_]*'
    bmax_var = r'(%s)(?:(?:([ \t]*)(%s)|([ \t]*:[ \t]*\b(?:Shl|Shr|Sar|Mod)\b)|([ \t]*)([:])([ \t]*)(?:%s|(%s)))(?:([ \t]*)(Ptr))?)' % (bmax_name, bmax_sktypes, bmax_lktypes, bmax_name)
    bmax_func = bmax_var + r'?((?:[ \t]|\.\.\n)*)([(])'

    flags = re.MULTILINE | re.IGNORECASE
    tokens = {
        'root': [
            # Text
            (r'[ \t]+', Text),
            (r'\.\.\n', Text), # Line continuation
            # Comments
            (r"'.*?\n", Comment.Single),
            (r'([ \t]*)\bRem\n(\n|.)*?\s*\bEnd([ \t]*)Rem', Comment.Multiline),
            # Data types
            ('"', String.Double, 'string'),
            # Numbers
            (r'[0-9]+\.[0-9]*(?!\.)', Number.Float),
            (r'\.[0-9]*(?!\.)', Number.Float),
            (r'[0-9]+', Number.Integer),
            (r'\$[0-9a-f]+', Number.Hex),
            (r'\%[10]+', Number), # Binary
            # Other
            (r'(?:(?:(:)?([ \t]*)(:?%s|([+\-*/&|~]))|Or|And|Not|[=<>^]))' %
             (bmax_vopwords), Operator),
            (r'[(),.:\[\]]', Punctuation),
            (r'(?:#[\w \t]*)', Name.Label),
            (r'(?:\?[\w \t]*)', Comment.Preproc),
            # Identifiers
            (r'\b(New)\b([ \t]?)([(]?)(%s)' % (bmax_name),
             bygroups(Keyword.Reserved, Text, Punctuation, Name.Class)),
            (r'\b(Import|Framework|Module)([ \t]+)(%s\.%s)' %
             (bmax_name, bmax_name),
             bygroups(Keyword.Reserved, Text, Keyword.Namespace)),
            (bmax_func, bygroups(Name.Function, Text, Keyword.Type,
                                 Operator, Text, Punctuation, Text,
                                 Keyword.Type, Name.Class, Text,
                                 Keyword.Type, Text, Punctuation)),
            (bmax_var, bygroups(Name.Variable, Text, Keyword.Type, Operator,
                                Text, Punctuation, Text, Keyword.Type,
                                Name.Class, Text, Keyword.Type)),
            (r'\b(Type|Extends)([ \t]+)(%s)' % (bmax_name),
             bygroups(Keyword.Reserved, Text, Name.Class)),
            # Keywords
            (r'\b(Ptr)\b', Keyword.Type),
            (r'\b(Pi|True|False|Null|Self|Super)\b', Keyword.Constant),
            (r'\b(Local|Global|Const|Field)\b', Keyword.Declaration),
            (r'\b(TNullMethodException|TNullFunctionException|'
             r'TNullObjectException|TArrayBoundsException|'
             r'TRuntimeException)\b', Name.Exception),
            (r'\b(Strict|SuperStrict|Module|ModuleInfo|'
             r'End|Return|Continue|Exit|Public|Private|'
             r'Var|VarPtr|Chr|Len|Asc|SizeOf|Sgn|Abs|Min|Max|'
             r'New|Release|Delete|'
             r'Incbin|IncbinPtr|IncbinLen|'
             r'Framework|Include|Import|Extern|EndExtern|'
             r'Function|EndFunction|'
             r'Type|EndType|Extends|'
             r'Method|EndMethod|'
             r'Abstract|Final|'
             r'If|Then|Else|ElseIf|EndIf|'
             r'For|To|Next|Step|EachIn|'
             r'While|Wend|EndWhile|'
             r'Repeat|Until|Forever|'
             r'Select|Case|Default|EndSelect|'
             r'Try|Catch|EndTry|Throw|Assert|'
             r'Goto|DefData|ReadData|RestoreData)\b', Keyword.Reserved),
            # Final resolve (for variable names and such)
            (r'(%s)' % (bmax_name), Name.Variable),
        ],
        'string': [
            (r'""', String.Double),
            (r'"C?', String.Double, '#pop'),
            (r'[^"]+', String.Double),
        ],
    }