1"""
2 pygments.lexers.nit
3 ~~~~~~~~~~~~~~~~~~~
4
5 Lexer for the Nit language.
6
7 :copyright: Copyright 2006-2025 by the Pygments team, see AUTHORS.
8 :license: BSD, see LICENSE for details.
9"""
10
11from pygments.lexer import RegexLexer, words
12from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
13 Number, Punctuation
14
15__all__ = ['NitLexer']
16
17
18class NitLexer(RegexLexer):
19 """
20 For nit source.
21 """
22
23 name = 'Nit'
24 url = 'http://nitlanguage.org'
25 aliases = ['nit']
26 filenames = ['*.nit']
27 version_added = '2.0'
28 tokens = {
29 'root': [
30 (r'#.*?$', Comment.Single),
31 (words((
32 'package', 'module', 'import', 'class', 'abstract', 'interface',
33 'universal', 'enum', 'end', 'fun', 'type', 'init', 'redef',
34 'isa', 'do', 'readable', 'writable', 'var', 'intern', 'extern',
35 'public', 'protected', 'private', 'intrude', 'if', 'then',
36 'else', 'while', 'loop', 'for', 'in', 'and', 'or', 'not',
37 'implies', 'return', 'continue', 'break', 'abort', 'assert',
38 'new', 'is', 'once', 'super', 'self', 'true', 'false', 'nullable',
39 'null', 'as', 'isset', 'label', '__debug__'), suffix=r'(?=[\r\n\t( ])'),
40 Keyword),
41 (r'[A-Z]\w*', Name.Class),
42 (r'"""(([^\'\\]|\\.)|\\r|\\n)*((\{\{?)?(""?\{\{?)*""""*)', String), # Simple long string
43 (r'\'\'\'(((\\.|[^\'\\])|\\r|\\n)|\'((\\.|[^\'\\])|\\r|\\n)|'
44 r'\'\'((\\.|[^\'\\])|\\r|\\n))*\'\'\'', String), # Simple long string alt
45 (r'"""(([^\'\\]|\\.)|\\r|\\n)*((""?)?(\{\{?""?)*\{\{\{\{*)', String), # Start long string
46 (r'\}\}\}(((\\.|[^\'\\])|\\r|\\n))*(""?)?(\{\{?""?)*\{\{\{\{*', String), # Mid long string
47 (r'\}\}\}(((\\.|[^\'\\])|\\r|\\n))*(\{\{?)?(""?\{\{?)*""""*', String), # End long string
48 (r'"(\\.|([^"}{\\]))*"', String), # Simple String
49 (r'"(\\.|([^"}{\\]))*\{', String), # Start string
50 (r'\}(\\.|([^"}{\\]))*\{', String), # Mid String
51 (r'\}(\\.|([^"}{\\]))*"', String), # End String
52 (r'(\'[^\'\\]\')|(\'\\.\')', String.Char),
53 (r'[0-9]+', Number.Integer),
54 (r'[0-9]*.[0-9]+', Number.Float),
55 (r'0(x|X)[0-9A-Fa-f]+', Number.Hex),
56 (r'[a-z]\w*', Name),
57 (r'_\w+', Name.Variable.Instance),
58 (r'==|!=|<==>|>=|>>|>|<=|<<|<|\+|-|=|/|\*|%|\+=|-=|!|@', Operator),
59 (r'\(|\)|\[|\]|,|\.\.\.|\.\.|\.|::|:', Punctuation),
60 (r'`\{[^`]*`\}', Text), # Extern blocks won't be Lexed by Nit
61 (r'[\r\n\t ]+', Text),
62 ],
63 }