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# fontextract.py
#
# This file is part of LilyPond, the GNU music typesetter.
#
# Copyright (C) 2005--2020 Han-Wen Nienhuys <hanwen@xs4all.nl>
#
# LilyPond is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# LilyPond is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
import getopt
import os
import re
import sys
dsr_font_regex = re.compile('%%DocumentSuppliedResources: font (.*)')
begin_font_regex = re.compile('%%BeginFont: (.*)')
end_font_regex = re.compile('%%EndFont')
verbose = 0
def scan_files(files):
file_of_font_dict = {}
for f in files:
if verbose:
sys.stderr.write('Scanning %s\n' % f)
header = open(f, 'r', encoding='utf8').read()
idx = 0
extract_from_this = []
while idx < len(header):
match = dsr_font_regex.search(header[idx:])
if not match:
break
name = match.group(1)
idx += match.end(1)
if name in file_of_font_dict:
continue
file_of_font_dict[name] = f
return file_of_font_dict
def get_file_fonts_dict(file_of_font_dict):
dict = {}
for (n, f) in list(file_of_font_dict.items()):
if f not in dict:
dict[f] = []
dict[f].append(n)
return dict
def extract_fonts_from_file(extract_from_this, font_dict, filename):
if extract_from_this:
curr_font = []
curr_font_name = []
in_font = 0
for l in open(filename, encoding='utf8').readlines():
if not in_font and begin_font_regex.match(l):
in_font = 1
curr_font_name = begin_font_regex.match(l).group(1)
curr_font = []
elif in_font and end_font_regex.match(l):
in_font = 0
if curr_font_name in extract_from_this:
font_dict[curr_font_name] = ''.join(curr_font)
if verbose:
sys.stderr.write('Extracted %s\n' % curr_font_name)
extract_from_this.remove(curr_font_name)
elif in_font:
curr_font.append(l)
if not extract_from_this:
break
if extract_from_this:
sys.stderr.write("Failed to extract %s from %s\n"
% (', '.join(extract_from_this), filename))
def write_extracted_fonts(output_file_name, font_dict):
if verbose:
sys.stderr.write('Writing fonts to %s\n' % output_file_name)
output = open(output_file_name, 'w', encoding='utf8')
output.write('''%!PS-Adobe-3.0
%%VMusage: 0 0
%%Creator: lilypond-extract-fonts
''')
for x in list(font_dict.keys()):
output.write('%%%%DocumentSuppliedResources: font %s\n' % x)
output.write('''%%EndComments\n''')
for (k, v) in list(font_dict.items()):
output.write('\n%%%%BeginFont: %s\n' % k)
output.write(v)
output.write('\n%%EndFont')
def extract_fonts(output_file_name, input_files):
d = scan_files(input_files)
ff = get_file_fonts_dict(d)
font_dict = {}
for (file, fonts) in list(ff.items()):
extract_fonts_from_file(fonts, font_dict, file)
write_extracted_fonts(output_file_name, font_dict)
if __name__ == '__main__':
extract_fonts('fonts.ps', sys.argv[1:])
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