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# -*- coding: utf-8 -*-
"""
pygments.lexers.ezhil
~~~~~~~~~~~~~~~~~~~~~
Pygments lexers for Ezhil language.
:copyright: Copyright 2006-2017 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
import re
from pygments.lexer import RegexLexer, include, words
from pygments.token import Keyword, Text, Comment, Name
from pygments.token import String, Number, Punctuation, Operator
__all__ = ['EzhilLexer']
class EzhilLexer(RegexLexer):
"""
Lexer for `Ezhil, a Tamil script-based programming language <http://ezhillang.org>`_
.. versionadded:: 2.1
"""
name = 'Ezhil'
aliases = ['ezhil']
filenames = ['*.n']
mimetypes = ['text/x-ezhil']
flags = re.MULTILINE | re.UNICODE
# Refer to tamil.utf8.tamil_letters from open-tamil for a stricter version of this.
# This much simpler version is close enough, and includes combining marks.
_TALETTERS = u'[a-zA-Z_]|[\u0b80-\u0bff]'
tokens = {
'root': [
include('keywords'),
(r'#.*\n', Comment.Single),
(r'[@+/*,^\-%]|[!<>=]=?|&&?|\|\|?', Operator),
(u'இல்', Operator.Word),
(words((u'assert', u'max', u'min',
u'நீளம்', u'சரம்_இடமாற்று', u'சரம்_கண்டுபிடி',
u'பட்டியல்', u'பின்இணை', u'வரிசைப்படுத்து',
u'எடு', u'தலைகீழ்', u'நீட்டிக்க', u'நுழைக்க', u'வை',
u'கோப்பை_திற', u'கோப்பை_எழுது', u'கோப்பை_மூடு',
u'pi', u'sin', u'cos', u'tan', u'sqrt', u'hypot', u'pow',
u'exp', u'log', u'log10', u'exit',
), suffix=r'\b'), Name.Builtin),
(r'(True|False)\b', Keyword.Constant),
(r'[^\S\n]+', Text),
include('identifier'),
include('literal'),
(r'[(){}\[\]:;.]', Punctuation),
],
'keywords': [
(u'பதிப்பி|தேர்ந்தெடு|தேர்வு|ஏதேனில்|ஆனால்|இல்லைஆனால்|இல்லை|ஆக|ஒவ்வொன்றாக|இல்|வரை|செய்|முடியேனில்|பின்கொடு|முடி|நிரல்பாகம்|தொடர்|நிறுத்து|நிரல்பாகம்', Keyword),
],
'identifier': [
(u'(?:'+_TALETTERS+u')(?:[0-9]|'+_TALETTERS+u')*', Name),
],
'literal': [
(r'".*?"', String),
(r'(?u)\d+((\.\d*)?[eE][+-]?\d+|\.\d*)', Number.Float),
(r'(?u)\d+', Number.Integer),
]
}
def __init__(self, **options):
super(EzhilLexer, self).__init__(**options)
self.encoding = options.get('encoding', 'utf-8')
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