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docutils
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math
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__init__.py
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# :Id: $Id: __init__.py 9026 2022-03-04 15:57:13Z milde $ # :Author: Guenter Milde. # :License: Released under the terms of the `2-Clause BSD license`_, in short: # # Copying and distribution of this file, with or without modification, # are permitted in any medium without royalty provided the copyright # notice and this notice are preserved. # This file is offered as-is, without any warranty. # # .. _2-Clause BSD license: https://opensource.org/licenses/BSD-2-Clause """ This is the Docutils (Python Documentation Utilities) "math" sub-package. It contains various modules for conversion between different math formats (LaTeX, MathML, HTML). :math2html: LaTeX math -> HTML conversion from eLyXer :latex2mathml: LaTeX math -> presentational MathML :unichar2tex: Unicode character to LaTeX math translation table :tex2unichar: LaTeX math to Unicode character translation dictionaries :tex2mathml_extern: Wrapper for 3rd party TeX -> MathML converters """ # helpers for Docutils math support # ================================= def toplevel_code(code): """Return string (LaTeX math) `code` with environments stripped out.""" chunks = code.split(r'\begin{') return r'\begin{'.join(chunk.split(r'\end{')[-1] for chunk in chunks) def pick_math_environment(code, numbered=False): """Return the right math environment to display `code`. The test simply looks for line-breaks (``\\``) outside environments. Multi-line formulae are set with ``align``, one-liners with ``equation``. If `numbered` evaluates to ``False``, the "starred" versions are used to suppress numbering. """ if toplevel_code(code).find(r'\\') >= 0: env = 'align' else: env = 'equation' if not numbered: env += '*' return env