97 lines
3.0 KiB
Python
97 lines
3.0 KiB
Python
# -*- coding: utf-8 -*-
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"""
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pygments.lexers.inferno
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~~~~~~~~~~~~~~~~~~~~~~~
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Lexers for Inferno os and all the related stuff.
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:copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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import re
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from pygments.lexer import RegexLexer, include, bygroups, default
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from pygments.token import Punctuation, Text, Comment, Operator, Keyword, \
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Name, String, Number
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__all__ = ['LimboLexer']
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class LimboLexer(RegexLexer):
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"""
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Lexer for `Limbo programming language <http://www.vitanuova.com/inferno/limbo.html>`_
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TODO:
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- maybe implement better var declaration highlighting
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- some simple syntax error highlighting
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.. versionadded:: 2.0
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"""
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name = 'Limbo'
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aliases = ['limbo']
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filenames = ['*.b']
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mimetypes = ['text/limbo']
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tokens = {
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'whitespace': [
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(r'^(\s*)([a-zA-Z_]\w*:(\s*)\n)',
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bygroups(Text, Name.Label)),
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(r'\n', Text),
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(r'\s+', Text),
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(r'#(\n|(.|\n)*?[^\\]\n)', Comment.Single),
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],
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'string': [
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(r'"', String, '#pop'),
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(r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|'
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r'u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})', String.Escape),
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(r'[^\\"\n]+', String), # all other characters
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(r'\\', String), # stray backslash
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],
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'statements': [
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(r'"', String, 'string'),
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(r"'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'", String.Char),
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(r'(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+', Number.Float),
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(r'(\d+\.\d*|\.\d+|\d+[fF])', Number.Float),
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(r'16r[0-9a-fA-F]+', Number.Hex),
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(r'8r[0-7]+', Number.Oct),
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(r'((([1-3]\d)|([2-9]))r)?(\d+)', Number.Integer),
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(r'[()\[\],.]', Punctuation),
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(r'[~!%^&*+=|?:<>/-]|(->)|(<-)|(=>)|(::)', Operator),
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(r'(alt|break|case|continue|cyclic|do|else|exit'
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r'for|hd|if|implement|import|include|len|load|or'
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r'pick|return|spawn|tagof|tl|to|while)\b', Keyword),
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(r'(byte|int|big|real|string|array|chan|list|adt'
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r'|fn|ref|of|module|self|type)\b', Keyword.Type),
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(r'(con|iota|nil)\b', Keyword.Constant),
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('[a-zA-Z_]\w*', Name),
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],
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'statement' : [
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include('whitespace'),
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include('statements'),
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('[{}]', Punctuation),
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(';', Punctuation, '#pop'),
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],
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'root': [
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include('whitespace'),
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default('statement'),
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],
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}
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def analyse_text(text):
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# Any limbo module implements something
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if re.search(r'^implement \w+;', text, re.MULTILINE):
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return 0.7
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# TODO:
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# - Make lexers for:
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# - asm sources
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# - man pages
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# - mkfiles
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# - module definitions
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# - namespace definitions
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# - shell scripts
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# - maybe keyfiles and fonts
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# they all seem to be quite similar to their equivalents
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# from unix world, so there should not be a lot of problems
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