mirror of https://github.com/morpheus65535/bazarr
86 lines
2.7 KiB
Python
86 lines
2.7 KiB
Python
"""
|
|
pygments.lexers.maxima
|
|
~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Lexer for the computer algebra system Maxima.
|
|
|
|
Derived from pygments/lexers/algebra.py.
|
|
|
|
:copyright: Copyright 2006-2022 by the Pygments team, see AUTHORS.
|
|
:license: BSD, see LICENSE for details.
|
|
"""
|
|
|
|
import re
|
|
|
|
from pygments.lexer import RegexLexer, bygroups, words
|
|
from pygments.token import Text, Comment, Operator, Keyword, Name, String, \
|
|
Number, Punctuation
|
|
|
|
__all__ = ['MaximaLexer']
|
|
|
|
class MaximaLexer(RegexLexer):
|
|
"""
|
|
A Maxima lexer.
|
|
Derived from pygments.lexers.MuPADLexer.
|
|
|
|
.. versionadded:: 2.11
|
|
"""
|
|
name = 'Maxima'
|
|
url = 'http://maxima.sourceforge.net'
|
|
aliases = ['maxima', 'macsyma']
|
|
filenames = ['*.mac', '*.max']
|
|
|
|
keywords = ('if', 'then', 'else', 'elseif',
|
|
'do', 'while', 'repeat', 'until',
|
|
'for', 'from', 'to', 'downto', 'step', 'thru')
|
|
|
|
constants = ('%pi', '%e', '%phi', '%gamma', '%i',
|
|
'und', 'ind', 'infinity', 'inf', 'minf',
|
|
'true', 'false', 'unknown', 'done')
|
|
|
|
operators = (r'.', r':', r'=', r'#',
|
|
r'+', r'-', r'*', r'/', r'^',
|
|
r'@', r'>', r'<', r'|', r'!', r"'")
|
|
|
|
operator_words = ('and', 'or', 'not')
|
|
|
|
tokens = {
|
|
'root': [
|
|
(r'/\*', Comment.Multiline, 'comment'),
|
|
(r'"(?:[^"\\]|\\.)*"', String),
|
|
(r'\(|\)|\[|\]|\{|\}', Punctuation),
|
|
(r'[,;$]', Punctuation),
|
|
(words (constants), Name.Constant),
|
|
(words (keywords), Keyword),
|
|
(words (operators), Operator),
|
|
(words (operator_words), Operator.Word),
|
|
(r'''(?x)
|
|
((?:[a-zA-Z_#][\w#]*|`[^`]*`)
|
|
(?:::[a-zA-Z_#][\w#]*|`[^`]*`)*)(\s*)([(])''',
|
|
bygroups(Name.Function, Text.Whitespace, Punctuation)),
|
|
(r'''(?x)
|
|
(?:[a-zA-Z_#%][\w#%]*|`[^`]*`)
|
|
(?:::[a-zA-Z_#%][\w#%]*|`[^`]*`)*''', Name.Variable),
|
|
(r'[-+]?(\d*\.\d+([bdefls][-+]?\d+)?|\d+(\.\d*)?[bdefls][-+]?\d+)', Number.Float),
|
|
(r'[-+]?\d+', Number.Integer),
|
|
(r'\s+', Text.Whitespace),
|
|
(r'.', Text)
|
|
],
|
|
'comment': [
|
|
(r'[^*/]+', Comment.Multiline),
|
|
(r'/\*', Comment.Multiline, '#push'),
|
|
(r'\*/', Comment.Multiline, '#pop'),
|
|
(r'[*/]', Comment.Multiline)
|
|
]
|
|
}
|
|
|
|
def analyse_text (text):
|
|
strength = 0.0
|
|
# Input expression terminator.
|
|
if re.search (r'\$\s*$', text, re.MULTILINE):
|
|
strength += 0.05
|
|
# Function definition operator.
|
|
if ':=' in text:
|
|
strength += 0.02
|
|
return strength
|