/usr/lib/python2.7/dist-packages/docutils/utils/math/__init__.py is in python-docutils 0.12+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 | # :Id: $Id: __init__.py 7218 2011-11-08 17:42:40Z 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: http://www.spdx.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
"""
# helpers for Docutils math support
# =================================
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.
"""
# cut out environment content:
chunks = code.split(r'\begin{')
toplevel_code = ''.join([chunk.split(r'\end{')[-1]
for chunk in chunks])
if toplevel_code.find(r'\\') >= 0:
env = 'align'
else:
env = 'equation'
if not numbered:
env += '*'
return env
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