auto-draft / latex-flatten.py
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#!/usr/bin/env python
# This script is taken from: https://github.com/rekka/latex-flatten
# A simple script for flattening LaTeX files by inlining included files.
#
# - Supports `\include` and `\input` commands.
# - Automatically adds extension `.tex` if the file does not have an extension.
# - Handles multiple include commands per line, comments.
# - Does not flatten recursively.
import re
import sys
if len(sys.argv)==3:
main_name = sys.argv[1]
output_name = sys.argv[2]
else:
sys.exit('USAGE: %s main.tex output.tex' %sys.argv[0])
main = open(main_name,'r')
output = open(output_name,'w')
for line in main.readlines():
s = re.split('%', line, 2)
tex = s[0]
if len(s) > 1:
comment = '%' + s[1]
else:
comment = ''
chunks = re.split(r'\\(?:input|include)\{[^}]+\}', tex)
if len(chunks) > 1:
for (c, t) in zip(chunks, re.finditer(r'\\(input|include)\{([^}]+)\}', tex)):
cmd_name = t.group(1)
include_name = t.group(2)
if '.' not in include_name: include_name = include_name + '.tex'
if c.strip(): output.write(c + '\n')
output.write('% BEGIN \\' + cmd_name + '{' + include_name + '}\n')
include = open(include_name, 'r')
output.write(include.read())
include.close()
output.write('% END \\' + cmd_name + '{' + include_name + '}\n')
tail = chunks[-1] + comment
if tail.strip(): output.write(tail)
else:
output.write(line)
output.close()
main.close()