ToxicFrog/Ligaturizer
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Switch to argparse for argument handling

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Ben Kelly 2018-01-27 09:06:57 -05:00 committed by Ben Kelly
parent 516aa3401b
commit ba71329c48
2 changed files with 26 additions and 11 deletions
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2
README.md
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@ -54,6 +54,8 @@ Use automatic mode to easily convert 1 or more font(s).
The font family and weight for the output font (as recorded in the file) will be automatically set based on the name; if the output is `CousineLigaturized-Regular.ttf`, the font family will be `CousineLigaturized` and the font weight will be `Regular`. If no weight is specified, `Regular` is the default.
`ligatures.py` supports some additional command line options to (e.g.) change which font ligatures are copied from; run `fontforge -lang=py ligaturize.py --help` to list them.
## Misc. ##
### Credit ###
This script was originally written by [IlyaSkriblovsky](https://github.com/IlyaSkriblovsky) for adding ligatures to DejaVuSans Mono ([dv-code-font](https://github.com/IlyaSkriblovsky/dv-code-font)). I made a few changes to generalize the script so that it works for any font, so that I could add ligatures to my favorite fonts. [ToxicFrog](https://github.com/ToxicFrog) has made a large number of contributions.

35
ligaturize.py
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@ -22,10 +22,6 @@ Programming ligatures added by Ilya Skriblovsky from FiraCode
FiraCode Copyright (c) 2015 by Nikita Prokopov'''
def get_ligature_source(fontname):
if len(sys.argv) > 3:
# User explicitly told us which source to use.
return sys.argv[3]
for weight in ['Bold', 'Retina', 'Medium', 'Regular', 'Light']:
if fontname.endswith('-' + weight):
# Exact match for one of the Fira Code weights
@ -183,13 +179,30 @@ def change_font_names(font, fontname, fullname, familyname, copyright_add, uniqu
for row in font.sfnt_names
)
input_font_path = sys.argv[1]
output_font_path = sys.argv[2]
def parse_args():
from argparse import ArgumentParser
parser = ArgumentParser()
parser.add_argument("input_font_path",
help="The TTF or OTF font to add ligatures to.")
parser.add_argument("output_font_path",
help="The file to save the ligaturized font in.")
parser.add_argument("--ligature-font-path",
type=str, default='', metavar='PATH',
help="The file to copy ligatures from. If unspecified, ligaturize will"
" attempt to pick a suitable one from fira/ based on the input"
" font's weight.")
return parser.parse_args()
output_font = get_output_font_details(output_font_path)
args = parse_args()
output_font = get_output_font_details(args.output_font_path)
font = fontforge.open(args.input_font_path)
if args.ligature_font_path:
ligature_font_path = args.ligature_font_path
else:
ligature_font_path = get_ligature_source(output_font['fontname'])
font = fontforge.open(input_font_path)
ligature_font_path = get_ligature_source(output_font['fontname'])
print('Reading ligatures from %s' % ligature_font_path)
firacode = fontforge.open(ligature_font_path)
firacode.em = font.em
@ -215,5 +228,5 @@ font.upos += font.uwidth
# Generate font & move to output directory
output_name = output_font['filename']
font.generate(output_font_path)
print "Generated ligaturized font %s in %s" % (output_font['fullname'], output_font_path)
font.generate(args.output_font_path)
print "Generated ligaturized font %s in %s" % (output_font['fullname'], args.output_font_path)