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#!/usr/bin/python
"""Post-build web fonts changes for Roboto."""
import sys
from fontTools import ttLib
from nototools import font_data
import temporary_touchups
def apply_web_specific_fixes(font, family_name):
"""Apply fixes needed for web fonts."""
# Set OS/2 table values to old values
os2 = font['OS/2']
os2.sTypoAscender = 1536
os2.sTypoDescender = -512
os2.sTypoLineGap = 102
os2.usWinAscent = 1946
os2.usWinDescent = 512
subfamily_name = font_data.get_name_records(font)[2].encode('ASCII')
assert(subfamily_name in
['Thin', 'Thin Italic',
'Light', 'Light Italic',
'Regular', 'Italic',
'Medium', 'Medium Italic',
'Bold', 'Bold Italic',
'Black', 'Black Italic'])
if 'Condensed' in font_data.get_name_records(font)[1]:
family_name += ' Condensed'
full_name = family_name + ' ' + subfamily_name
# Family name
font_data.set_name_record(font, 1, family_name)
font_data.set_name_record(font, 16, family_name)
# Unique identifier and full name
font_data.set_name_record(font, 3, full_name)
font_data.set_name_record(font, 4, full_name)
font_data.set_name_record(font, 18, None)
# PostScript name
font_data.set_name_record(
font, 6, (family_name+'-'+subfamily_name).replace(' ', ''))
def correct_font(source_font_name, target_font_name, family_name):
"""Corrects metrics and other meta information."""
font = ttLib.TTFont(source_font_name)
temporary_touchups.apply_temporary_fixes(font)
apply_web_specific_fixes(font, family_name)
font.save(target_font_name)
def main(argv):
"""Correct the font specified in the command line."""
correct_font(argv[1], argv[2], argv[3])
if __name__ == "__main__":
main(sys.argv)
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