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"""
pygments.lexers.nit
~~~~~~~~~~~~~~~~~~~
Lexer for the Nit language.
:copyright: Copyright 2006-2021 by the Pygments team, see AUTHORS.
:license: BSD, see LICENSE for details.
"""
from pygments.lexer import RegexLexer, words
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation
__all__ = ['NitLexer']
class NitLexer(RegexLexer):
"""
For `nit <http://nitlanguage.org>`_ source.
.. versionadded:: 2.0
"""
name = 'Nit'
aliases = ['nit']
filenames = ['*.nit']
tokens = {
'root': [
(r'#.*?$', Comment.Single),
(words((
'package', 'module', 'import', 'class', 'abstract', 'interface',
'universal', 'enum', 'end', 'fun', 'type', 'init', 'redef',
'isa', 'do', 'readable', 'writable', 'var', 'intern', 'extern',
'public', 'protected', 'private', 'intrude', 'if', 'then',
'else', 'while', 'loop', 'for', 'in', 'and', 'or', 'not',
'implies', 'return', 'continue', 'break', 'abort', 'assert',
'new', 'is', 'once', 'super', 'self', 'true', 'false', 'nullable',
'null', 'as', 'isset', 'label', '__debug__'), suffix=r'(?=[\r\n\t( ])'),
Keyword),
(r'[A-Z]\w*', Name.Class),
(r'"""(([^\'\\]|\\.)|\\r|\\n)*((\{\{?)?(""?\{\{?)*""""*)', String), # Simple long string
(r'\'\'\'(((\\.|[^\'\\])|\\r|\\n)|\'((\\.|[^\'\\])|\\r|\\n)|'
r'\'\'((\\.|[^\'\\])|\\r|\\n))*\'\'\'', String), # Simple long string alt
(r'"""(([^\'\\]|\\.)|\\r|\\n)*((""?)?(\{\{?""?)*\{\{\{\{*)', String), # Start long string
(r'\}\}\}(((\\.|[^\'\\])|\\r|\\n))*(""?)?(\{\{?""?)*\{\{\{\{*', String), # Mid long string
(r'\}\}\}(((\\.|[^\'\\])|\\r|\\n))*(\{\{?)?(""?\{\{?)*""""*', String), # End long string
(r'"(\\.|([^"}{\\]))*"', String), # Simple String
(r'"(\\.|([^"}{\\]))*\{', String), # Start string
(r'\}(\\.|([^"}{\\]))*\{', String), # Mid String
(r'\}(\\.|([^"}{\\]))*"', String), # End String
(r'(\'[^\'\\]\')|(\'\\.\')', String.Char),
(r'[0-9]+', Number.Integer),
(r'[0-9]*.[0-9]+', Number.Float),
(r'0(x|X)[0-9A-Fa-f]+', Number.Hex),
(r'[a-z]\w*', Name),
(r'_\w+', Name.Variable.Instance),
(r'==|!=|<==>|>=|>>|>|<=|<<|<|\+|-|=|/|\*|%|\+=|-=|!|@', Operator),
(r'\(|\)|\[|\]|,|\.\.\.|\.\.|\.|::|:', Punctuation),
(r'`\{[^`]*`\}', Text), # Extern blocks won't be Lexed by Nit
(r'[\r\n\t ]+', Text),
],
}
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