/usr/lib/python2.7/dist-packages/pygments/lexers/nix.py is in python-pygments 2.2.0+dfsg-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 | # -*- coding: utf-8 -*-
"""
pygments.lexers.nix
~~~~~~~~~~~~~~~~~~~
Lexers for the NixOS Nix 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
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
Number, Punctuation, Literal
__all__ = ['NixLexer']
class NixLexer(RegexLexer):
"""
For the `Nix language <http://nixos.org/nix/>`_.
.. versionadded:: 2.0
"""
name = 'Nix'
aliases = ['nixos', 'nix']
filenames = ['*.nix']
mimetypes = ['text/x-nix']
flags = re.MULTILINE | re.UNICODE
keywords = ['rec', 'with', 'let', 'in', 'inherit', 'assert', 'if',
'else', 'then', '...']
builtins = ['import', 'abort', 'baseNameOf', 'dirOf', 'isNull', 'builtins',
'map', 'removeAttrs', 'throw', 'toString', 'derivation']
operators = ['++', '+', '?', '.', '!', '//', '==',
'!=', '&&', '||', '->', '=']
punctuations = ["(", ")", "[", "]", ";", "{", "}", ":", ",", "@"]
tokens = {
'root': [
# comments starting with #
(r'#.*$', Comment.Single),
# multiline comments
(r'/\*', Comment.Multiline, 'comment'),
# whitespace
(r'\s+', Text),
# keywords
('(%s)' % '|'.join(re.escape(entry) + '\\b' for entry in keywords), Keyword),
# highlight the builtins
('(%s)' % '|'.join(re.escape(entry) + '\\b' for entry in builtins),
Name.Builtin),
(r'\b(true|false|null)\b', Name.Constant),
# operators
('(%s)' % '|'.join(re.escape(entry) for entry in operators),
Operator),
# word operators
(r'\b(or|and)\b', Operator.Word),
# punctuations
('(%s)' % '|'.join(re.escape(entry) for entry in punctuations), Punctuation),
# integers
(r'[0-9]+', Number.Integer),
# strings
(r'"', String.Double, 'doublequote'),
(r"''", String.Single, 'singlequote'),
# paths
(r'[\w.+-]*(\/[\w.+-]+)+', Literal),
(r'\<[\w.+-]+(\/[\w.+-]+)*\>', Literal),
# urls
(r'[a-zA-Z][a-zA-Z0-9\+\-\.]*\:[\w%/?:@&=+$,\\.!~*\'-]+', Literal),
# names of variables
(r'[\w-]+\s*=', String.Symbol),
(r'[a-zA-Z_][\w\'-]*', Text),
],
'comment': [
(r'[^/*]+', Comment.Multiline),
(r'/\*', Comment.Multiline, '#push'),
(r'\*/', Comment.Multiline, '#pop'),
(r'[*/]', Comment.Multiline),
],
'singlequote': [
(r"'''", String.Escape),
(r"''\$\{", String.Escape),
(r"''\n", String.Escape),
(r"''\r", String.Escape),
(r"''\t", String.Escape),
(r"''", String.Single, '#pop'),
(r'\$\{', String.Interpol, 'antiquote'),
(r"[^']", String.Single),
],
'doublequote': [
(r'\\', String.Escape),
(r'\\"', String.Escape),
(r'\\$\{', String.Escape),
(r'"', String.Double, '#pop'),
(r'\$\{', String.Interpol, 'antiquote'),
(r'[^"]', String.Double),
],
'antiquote': [
(r"\}", String.Interpol, '#pop'),
# TODO: we should probably escape also here ''${ \${
(r"\$\{", String.Interpol, '#push'),
include('root'),
],
}
def analyse_text(text):
rv = 0.0
# TODO: let/in
if re.search(r'import.+?<[^>]+>', text):
rv += 0.4
if re.search(r'mkDerivation\s+(\(|\{|rec)', text):
rv += 0.4
if re.search(r'=\s+mkIf\s+', text):
rv += 0.4
if re.search(r'\{[a-zA-Z,\s]+\}:', text):
rv += 0.1
return rv
|