lyx_mirror/lib/scripts/html2latexwrapper.py
José Matos 04ecabef60 Update Python scripts to Python 3+
Remove support for Python 2

Use formatted strings where appropriated
2024-06-10 11:29:56 +01:00

125 lines
4.4 KiB
Python

# file html2latexwrapper.py
# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
# author Georg Baum
# Full author contact details are available in file CREDITS
# Usage:
# html2latexwrapper.py <converter> <from file> <to file>
# This script will call <converter> -s <from file> > <to file>
# and add a \usepackage{inputenc} line if needed.
import os, string, sys, re
from lyxpreview_tools import error, run_command
def usage(prog_name):
return "Usage: %s <converter> <from file> <to file>" % prog_name
def get_encoding(from_file_name):
'''Read the encoding from a HTML or XHTML file'''
try:
from_file = open(from_file_name)
regexpxml = re.compile(r'^\s?<\?xml\s+.*?encoding\s*=\s*"([^"]+)"', re.IGNORECASE)
regexptype = re.compile(r'^\s?<meta\s+.*?charset\s*=\s*"([^"]+)"', re.IGNORECASE)
for line in from_file.readlines():
m = regexpxml.match(line)
if not m:
m = regexptype.match(line)
if m:
from_file.close()
return m.group(1).lower()
from_file.close()
except:
pass
return ''
def main(argv):
# Parse and manipulate the command line arguments.
if len(argv) != 4:
error(usage(argv[0]))
converter = argv[1]
from_file_name = argv[2]
to_file_name = argv[3]
# Run gnuhtml2latex
cmd = f'{converter} -s {from_file_name}'
(ret, output) = run_command(cmd, False)
# Determine encoding of HTML file
enc = get_encoding(from_file_name).replace('iso_8859', 'iso-8859')
# The HTML encodings were taken from http://www.iana.org/assignments/character-sets/character-sets.xml.
# Only those with inputenc support were added, and only thge most important aliases.
# List of encodings that have the same name in HTML (may be as an alias) and inputenc
same_enc = ['cp437', 'cp850', 'cp852', 'cp855', 'cp858', 'cp862', 'cp865', 'cp866', \
'cp1250', 'cp1251', 'cp1252', 'cp1255', 'cp1256', 'cp1257', \
'koi8-r', 'koi8-u', 'pt154', 'pt254', \
'latin1', 'latin2', 'latin3', 'latin4', 'latin5', 'latin9', 'latin10']
# Translation table from HTML encoding names to inputenc encoding names
encodings = {'utf-8' : 'utf8', 'csutf8' : 'utf8', \
'iso-8859-1' : 'latin1', 'cp819' : 'latin1', \
'iso-8859-2' : 'latin2', \
'iso-8859-3' : 'latin3', \
'iso-8859-4' : 'latin4', \
'iso-8859-5' : 'iso88595', 'cyrillic' : 'iso88595', \
'iso-8859-6' : '8859-6', 'arabic' : '8859-6', \
'iso-8859-7' : 'iso-8859-7', 'greek' : 'iso-8859-7', \
'iso-8859-8' : '8859-8', 'hebrew' : '8859-8', \
'iso-8859-9' : 'latin5', \
'iso-8859-13' : 'l7xenc', \
'iso-8859-15' : 'latin9', \
'iso-8859-16' : 'latin10', \
'ibm437' : 'cp437', \
'ibm850' : 'cp850', \
'ibm852' : 'cp852', \
'ibm855' : 'cp855', \
'ibm858' : 'cp858', \
'ibm862' : 'cp862', \
'ibm865' : 'cp865', \
'ibm866' : 'cp866', \
'ibm1250' : 'cp1250', \
'ibm1251' : 'cp1251', \
'ibm1255' : 'cp1255', \
'ibm1256' : 'cp1256', \
'ibm1257' : 'cp1257', \
'macintosh' : 'applemac', 'mac' : 'applemac', 'csmacintosh' : 'applemac'}
if enc != '':
if enc in encodings.keys():
enc = encodings[enc]
elif enc not in same_enc:
enc = ''
# Read conversion result
lines = output.split('\n')
# Do not add the inputenc call if inputenc or CJK is already loaded
add_inputenc = (enc != '')
if add_inputenc:
regexp = re.compile(r'^\s?\\usepackage\s?(\[[^]+]\])?\s?{(inputenc)|(CJK)|(CJKutf8)}')
for line in lines:
if regexp.match(line):
add_inputenc = False
break
# Write output file and insert inputenc call if needed
to_file = open(to_file_name, 'w')
for line in lines:
to_file.write(line + '\n')
if add_inputenc and line.find('\\documentclass') == 0:
to_file.write('\\usepackage[%s]{inputenc}\n' % enc)
to_file.close()
return ret
if __name__ == "__main__":
main(sys.argv)