rename-font

#!/usr/bin/env python
# coding=utf8

import os.path
import fontforge
import sys, logging
from argparse import ArgumentParser

sys.path.insert(0, os.path.abspath(os.path.dirname(sys.argv[0])) + '/bin/scripts/name_parser/')
from FontnameParser import FontnameParser
from TableHEADWriter import TableHEADWriter

# Setup and parse the comand-line arguments
parser = ArgumentParser()
parser.add_argument("--input", help="input file name")
parser.add_argument("--orig", help="original font filename")
parser.add_argument("--output", help="output file name")
parser.add_argument("--name", help="preferred family name")
parser.add_argument("--version", help="text to add to the existing version")
args = parser.parse_args()

SIL_TABLE = [('cascadia ?(code|mono)( ?pl)?', args.name), ]

print("\nRenaming process\n    {}\n as {}\n -> {}".format(args.input, args.orig, args.output))

fname = os.path.splitext(os.path.basename(args.orig))[0]
logger = logging.getLogger()
n = FontnameParser(fname, logger)
n.add_name_substitution_table(SIL_TABLE)
n.set_keep_regular_in_family(False)
if not n.parse_ok:
    sys.exit("Something with name parsing went wrong")

# Open the file
delugia=fontforge.open(args.input)

# Rename the file
n.rename_font(delugia)

# Other information
delugia.appendSFNTName("English (US)", "UniqueID", "{};{}".format(args.version, n.psname()))
delugia.appendSFNTName("English (US)", "Trademark", "")

# Mix our version information in
delugia.sfntRevision = None # Auto-set (refreshed) by fontforge
delugia.appendSFNTName("English (US)", "Version", args.version)
delugia.version = args.version

if n.psname().lower().find("mono"):
    # For MS-Windows console apps
    panose = list(delugia.os2_panose)
    if panose[0] < 3: # https://forum.high-logic.com/postedfiles/Panose.pdf
        panose[3] = 9 # 3 (4th value) = propotion: 9 = monospaced
        delugia.os2_panose = tuple(panose)

# Save
delugia.generate(args.output)
print("Generated '{}' from {} version {}".format(args.output, n.fullname(), args.version))

# Fix fontforge destroying the font flags
source_font = TableHEADWriter(args.orig)
dest_font = TableHEADWriter(args.output)
source_font.find_head_table(0)
dest_font.find_head_table(0)

print("Changing flags from 0x{:X} to 0x{:X}".format(dest_font.flags, source_font.flags))
dest_font.putshort(source_font.flags, 'flags') # clear 'ppem_to_int' etc
print("Changing lowestRecPPEM from {} to {}".format(dest_font.lowppem, source_font.lowppem))
dest_font.putshort(source_font.lowppem, 'lowestRecPPEM')

dest_font.reset_table_checksum()
dest_font.reset_full_checksum()
source_font.close()
dest_font.close()