view MoinMoin/support/pygments/lexers/go.py @ 6133:a6283e189869 tip

fixup: remove nonexisting passlib.utils._blowfish this was removed by the passlib 1.7.1 upgrade.
author Thomas Waldmann <tw AT waldmann-edv DOT de>
date Thu, 01 Jun 2017 18:10:19 +0200
parents 815981fad7fd
children
line wrap: on
line source
# -*- coding: utf-8 -*-
"""
    pygments.lexers.go
    ~~~~~~~~~~~~~~~~~~

    Lexers for the Google Go language.

    :copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
    :license: BSD, see LICENSE for details.
"""

import re

from pygments.lexer import RegexLexer, bygroups, words
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
    Number, Punctuation

__all__ = ['GoLexer']


class GoLexer(RegexLexer):
    """
    For `Go <http://golang.org>`_ source.

    .. versionadded:: 1.2
    """
    name = 'Go'
    filenames = ['*.go']
    aliases = ['go']
    mimetypes = ['text/x-gosrc']

    flags = re.MULTILINE | re.UNICODE

    tokens = {
        'root': [
            (r'\n', Text),
            (r'\s+', Text),
            (r'\\\n', Text),  # line continuations
            (r'//(.*?)\n', Comment.Single),
            (r'/(\\\n)?[*](.|\n)*?[*](\\\n)?/', Comment.Multiline),
            (r'(import|package)\b', Keyword.Namespace),
            (r'(var|func|struct|map|chan|type|interface|const)\b',
             Keyword.Declaration),
            (words((
                'break', 'default', 'select', 'case', 'defer', 'go',
                'else', 'goto', 'switch', 'fallthrough', 'if', 'range',
                'continue', 'for', 'return'), suffix=r'\b'),
             Keyword),
            (r'(true|false|iota|nil)\b', Keyword.Constant),
            # It seems the builtin types aren't actually keywords, but
            # can be used as functions. So we need two declarations.
            (words((
                'uint', 'uint8', 'uint16', 'uint32', 'uint64',
                'int', 'int8', 'int16', 'int32', 'int64',
                'float', 'float32', 'float64',
                'complex64', 'complex128', 'byte', 'rune',
                'string', 'bool', 'error', 'uintptr',
                'print', 'println', 'panic', 'recover', 'close', 'complex',
                'real', 'imag', 'len', 'cap', 'append', 'copy', 'delete',
                'new', 'make'), suffix=r'\b(\()'),
             bygroups(Name.Builtin, Punctuation)),
            (words((
                'uint', 'uint8', 'uint16', 'uint32', 'uint64',
                'int', 'int8', 'int16', 'int32', 'int64',
                'float', 'float32', 'float64',
                'complex64', 'complex128', 'byte', 'rune',
                'string', 'bool', 'error', 'uintptr'), suffix=r'\b'),
             Keyword.Type),
            # imaginary_lit
            (r'\d+i', Number),
            (r'\d+\.\d*([Ee][-+]\d+)?i', Number),
            (r'\.\d+([Ee][-+]\d+)?i', Number),
            (r'\d+[Ee][-+]\d+i', Number),
            # 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'|<-|\+\+|--|==|!=|:=|\.\.\.|[+\-*/%&])', Operator),
            (r'[|^<>=!()\[\]{}.,;:]', Punctuation),
            # identifier
            (r'[^\W\d]\w*', Name.Other),
        ]
    }