| | """ |
| | pygments.lexers.maxima |
| | ~~~~~~~~~~~~~~~~~~~~~~ |
| | |
| | Lexer for the computer algebra system Maxima. |
| | |
| | Derived from pygments/lexers/algebra.py. |
| | |
| | :copyright: Copyright 2006-2025 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. |
| | """ |
| | name = 'Maxima' |
| | url = 'http://maxima.sourceforge.net' |
| | aliases = ['maxima', 'macsyma'] |
| | filenames = ['*.mac', '*.max'] |
| | version_added = '2.11' |
| |
|
| | 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'[,;$]', Punctuation), |
| | (words (constants), Name.Constant), |
| | (words (keywords), Keyword), |
| | (words (operators), Operator), |
| | (words (operator_words), Operator.Word), |
| | (r'''(?x) |
| | ((?:[a-zA-Z_#][\w#]*|`[^`]*`) |
| | (?:::[a-zA-Z_#][\w#]*|`[^`]*`)*)(\s*)([(])''', |
| | bygroups(Name.Function, Text.Whitespace, Punctuation)), |
| | (r'''(?x) |
| | (?:[a-zA-Z_#%][\w#%]*|`[^`]*`) |
| | (?:::[a-zA-Z_#%][\w#%]*|`[^`]*`)*''', Name.Variable), |
| | (r'[-+]?(\d*\.\d+([bdefls][-+]?\d+)?|\d+(\.\d*)?[bdefls][-+]?\d+)', Number.Float), |
| | (r'[-+]?\d+', Number.Integer), |
| | (r'\s+', Text.Whitespace), |
| | (r'.', Text) |
| | ], |
| | 'comment': [ |
| | (r'[^*/]+', Comment.Multiline), |
| | (r'/\*', Comment.Multiline, '#push'), |
| | (r'\*/', Comment.Multiline, '#pop'), |
| | (r'[*/]', Comment.Multiline) |
| | ] |
| | } |
| |
|
| | def analyse_text (text): |
| | strength = 0.0 |
| | |
| | if re.search (r'\$\s*$', text, re.MULTILINE): |
| | strength += 0.05 |
| | |
| | if ':=' in text: |
| | strength += 0.02 |
| | return strength |
| |
|
