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# -*- coding: utf-8 -*-
"""
pygments.lexers.boogie
~~~~~~~~~~~~~~~~~~~~~~~~
Lexers for esoteric languages.
:copyright: Copyright 2006-2016 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from pygments.lexer import RegexLexer, include, words
from pygments.token import Comment, Operator, Keyword, Name, Number, \
Punctuation, Whitespace
__all__ = ['BoogieLexer',]
class BoogieLexer(RegexLexer):
"""
For `Boogie <https://boogie.codeplex.com/>`_ source code.
.. versionadded:: 2.1
"""
name = 'Boogie'
aliases = ['boogie']
filenames = ['*.bpl']
tokens = {
'root': [
# Whitespace and Comments
(r'\n', Whitespace),
(r'\s+', Whitespace),
(r'//[/!](.*?)\n', Comment.Doc),
(r'//(.*?)\n', Comment.Single),
(r'/\*', Comment.Multiline, 'comment'),
(words((
'axiom', 'break', 'call', 'ensures', 'else', 'exists', 'function',
'forall', 'if', 'invariant', 'modifies', 'procedure', 'requires',
'then', 'var', 'while'),
suffix=r'\b'), Keyword),
(words(('const',), suffix=r'\b'), Keyword.Reserved),
(words(('bool', 'int', 'ref'), suffix=r'\b'), Keyword.Type),
include('numbers'),
(r"(>=|<=|:=|!=|==>|&&|\|\||[+/\-=>*<\[\]])", Operator),
(r"([{}():;,.])", Punctuation),
# Identifier
(r'[a-zA-Z_]\w*', Name),
],
'comment': [
(r'[^*/]+', Comment.Multiline),
(r'/\*', Comment.Multiline, '#push'),
(r'\*/', Comment.Multiline, '#pop'),
(r'[*/]', Comment.Multiline),
],
'numbers': [
(r'[0-9]+', Number.Integer),
],
}
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