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#!/usr/bin/env python3
'''FontForge: Re-encode double-encoded glyphs based on double encoding data in a file
Lines in file should look like: "LtnSmARetrHook",U+F236,U+1D8F'''
__url__ = 'https://github.com/silnrsi/pysilfont'
__copyright__ = 'Copyright (c) 2015 SIL International (https://www.sil.org)'
__license__ = 'Released under the MIT License (https://opensource.org/licenses/MIT)'
__author__ = 'David Raymond'
from silfont.core import execute
argspec = [
('ifont',{'help': 'Input font file'}, {'type': 'infont'}),
('ofont',{'help': 'Output font file','nargs': '?' }, {'type': 'outfont', 'def': 'new'}),
('-i','--input',{'help': 'Input csv text file'}, {'type': 'infile', 'def': 'DblEnc.txt'}),
('-l','--log',{'help': 'Log file'}, {'type': 'outfile', 'def': 'unDblEnc.log'})]
def doit(args) :
font=args.ifont
inpf = args.input
logf = args.log
# Create dbl_encode list from the input file
dbl_encode = {}
for line in inpf.readlines():
glyphn, pua_usv_str, std_usv_str = line.strip().split(",") # will exception if not 3 elements
if glyphn[0] in '"\'' : glyphn = glyphn[1:-1] # slice off quote marks, if present
pua_usv, std_usv = int(pua_usv_str[2:], 16), int(std_usv_str[2:], 16)
dbl_encode[glyphn] = [std_usv, pua_usv]
inpf.close()
for glyph in sorted(dbl_encode.keys()):
logf.write (reincode(font,glyph,dbl_encode[glyph][0]))
logf.write (reincode(font,glyph+"Dep",dbl_encode[glyph][1]))
logf.close()
return font
def reincode(font,glyph,usv):
if glyph not in font:
return ("Glyph %s not in font\n" % (glyph))
g = font[glyph]
ousvs=[g.unicode]
oalt=g.altuni
if oalt != None:
for au in oalt:
ousvs.append(au[0]) # (may need to check variant flag)
g.unicode = usv
g.altuni = None
return ("encoding for %s changed: %s -> %s\n" % (glyph, ousvs, usv))
def cmd() : execute("FF",doit,argspec)
if __name__ == "__main__": cmd()
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