115 lines
3.4 KiB
Python
115 lines
3.4 KiB
Python
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# -*- coding: utf-8 -*-
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"""
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pygments.lexers.esoteric
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~~~~~~~~~~~~~~~~~~~~~~~~
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Lexers for esoteric languages.
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:copyright: Copyright 2006-2014 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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from pygments.lexer import RegexLexer, include
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from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
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Number, Punctuation, Error
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__all__ = ['BrainfuckLexer', 'BefungeLexer', 'RedcodeLexer']
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class BrainfuckLexer(RegexLexer):
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"""
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Lexer for the esoteric `BrainFuck <http://www.muppetlabs.com/~breadbox/bf/>`_
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language.
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"""
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name = 'Brainfuck'
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aliases = ['brainfuck', 'bf']
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filenames = ['*.bf', '*.b']
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mimetypes = ['application/x-brainfuck']
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tokens = {
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'common': [
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# use different colors for different instruction types
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(r'[.,]+', Name.Tag),
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(r'[+-]+', Name.Builtin),
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(r'[<>]+', Name.Variable),
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(r'[^.,+\-<>\[\]]+', Comment),
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],
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'root': [
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(r'\[', Keyword, 'loop'),
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(r'\]', Error),
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include('common'),
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],
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'loop': [
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(r'\[', Keyword, '#push'),
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(r'\]', Keyword, '#pop'),
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include('common'),
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]
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}
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class BefungeLexer(RegexLexer):
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"""
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Lexer for the esoteric `Befunge <http://en.wikipedia.org/wiki/Befunge>`_
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language.
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.. versionadded:: 0.7
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"""
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name = 'Befunge'
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aliases = ['befunge']
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filenames = ['*.befunge']
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mimetypes = ['application/x-befunge']
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tokens = {
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'root': [
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(r'[0-9a-f]', Number),
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(r'[+*/%!`-]', Operator), # Traditional math
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(r'[<>^v?\[\]rxjk]', Name.Variable), # Move, imperatives
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(r'[:\\$.,n]', Name.Builtin), # Stack ops, imperatives
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(r'[|_mw]', Keyword),
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(r'[{}]', Name.Tag), # Befunge-98 stack ops
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(r'".*?"', String.Double), # Strings don't appear to allow escapes
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(r'\'.', String.Single), # Single character
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(r'[#;]', Comment), # Trampoline... depends on direction hit
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(r'[pg&~=@iotsy]', Keyword), # Misc
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(r'[()A-Z]', Comment), # Fingerprints
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(r'\s+', Text), # Whitespace doesn't matter
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],
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}
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class RedcodeLexer(RegexLexer):
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"""
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A simple Redcode lexer based on ICWS'94.
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Contributed by Adam Blinkinsop <blinks@acm.org>.
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.. versionadded:: 0.8
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"""
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name = 'Redcode'
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aliases = ['redcode']
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filenames = ['*.cw']
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opcodes = ('DAT', 'MOV', 'ADD', 'SUB', 'MUL', 'DIV', 'MOD',
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'JMP', 'JMZ', 'JMN', 'DJN', 'CMP', 'SLT', 'SPL',
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'ORG', 'EQU', 'END')
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modifiers = ('A', 'B', 'AB', 'BA', 'F', 'X', 'I')
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tokens = {
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'root': [
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# Whitespace:
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(r'\s+', Text),
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(r';.*$', Comment.Single),
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# Lexemes:
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# Identifiers
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(r'\b(%s)\b' % '|'.join(opcodes), Name.Function),
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(r'\b(%s)\b' % '|'.join(modifiers), Name.Decorator),
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(r'[A-Za-z_]\w+', Name),
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# Operators
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(r'[-+*/%]', Operator),
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(r'[#$@<>]', Operator), # mode
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(r'[.,]', Punctuation), # mode
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# Numbers
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(r'[-+]?\d+', Number.Integer),
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],
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}
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