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#!/usr/bin/env python3
__doc__ = '''Set the unicodes of glyphs in a font based on an external csv file.
- csv format glyphname,unicode, [unicode2, [,unicode3]]'''
__url__ = 'https://github.com/silnrsi/pysilfont'
__copyright__ = 'Copyright (c) 2016 SIL International (https://www.sil.org)'
__license__ = 'Released under the MIT License (https://opensource.org/licenses/MIT)'
__author__ = 'Victor Gaultney, based on UFOsetPSnames.py'
from silfont.core import execute
suffix = "_setunicodes"
argspec = [
('ifont',{'help': 'Input font file'}, {'type': 'infont'}),
('ofont',{'help': 'Output font file','nargs': '?' }, {'type': 'outfont'}),
('-i','--input',{'help': 'Input csv file'}, {'type': 'incsv', 'def': suffix+'.csv'}),
('-l','--log',{'help': 'Log file'}, {'type': 'outfile', 'def': suffix+'.log'})]
def doit(args) :
font = args.ifont
incsv = args.input
logger = args.logger
# Allow for up to 3 unicode values per glyph
incsv.minfields = 2
incsv.maxfields = 4
# List of glyphnames actually in the font:
glyphlist = list(font.deflayer.keys())
# Create mapping to find glyph name from decimal usv:
dusv2gname = {int(unicode.hex, 16): gname for gname in glyphlist for unicode in font.deflayer[gname]['unicode']}
# Remember what glyphnames we've processed:
processed = set()
for line in incsv :
glyphn = line[0]
# Allow for up to 3 unicode values
dusvs = []
for col in range(1,len(line)):
try:
dusv = int(line[col],16) # sanity check and convert to decimal
except ValueError:
logger.log("Invalid USV '%s'; line %d ignored." % (line[col], incsv.line_num), "W")
continue
dusvs.append(dusv)
if glyphn in glyphlist :
if glyphn in processed:
logger.log(f"Glyph {glyphn} in csv more than once; line {incsv.line_num} ignored.", "W")
glyph = font.deflayer[glyphn]
# Remove existing unicodes
for unicode in list(glyph["unicode"]):
del dusv2gname[int(unicode.hex, 16)]
glyph.remove("unicode",index = 0)
# Add the new unicode(s) in
for dusv in dusvs:
# See if any glyph already encodes this unicode value:
if dusv in dusv2gname:
# Remove this encoding from the other glyph:
oglyph = font.deflayer[dusv2gname[dusv]]
for unicode in oglyph["unicode"]:
if int(unicode.hex,16) == dusv:
oglyph.remove("unicode", object=unicode)
break
# Add this unicode value and update dusv2gname
dusv2gname[dusv] = glyphn
glyph.add("unicode",{"hex": ("%04X" % dusv)}) # Standardize to 4 (or more) digits and caps
# Record that we processed this glyphname,
processed.add(glyphn)
else :
logger.log("Glyph '%s' not in font; line %d ignored." % (glyphn, incsv.line_num), "I")
return font
def cmd() : execute("UFO",doit,argspec)
if __name__ == "__main__": cmd()
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