remove_calt.py

#!/usr/bin/env python3
import fontforge
import sys

if len(sys.argv) < 3:
    print("Usage: python remove_calt.py input_font output_font")
    sys.exit(1)

input_font = sys.argv[1]
output_font = sys.argv[2]

# Open the font
font = fontforge.open(input_font)

# Remove the 'calt' feature if it exists
for lookup in list(font.gsub_lookups):
    for feature, script_lang_list in font.getLookupInfo(lookup)[2]:
        if feature == 'calt':
            font.removeLookup(lookup)
            print(f"Removed lookup '{lookup}' with 'calt' feature")

# Save the modified font
font.generate(output_font)
print(f"Font saved as {output_font}")