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#
# Assigns private-use codepoints to glyphs which are not mapped
# to any Unicode codepoints.
#
# This script will ignore glyphs which name starts with "." as well as
# empty glyphs and glyphs which are not exported.
#
import sys
from collections import OrderedDict
DRY_RUN = True
font = Glyphs.font
font.disableUpdateInterface()
def isEmpty(g):
for master in g.parent.masters:
layer = g.layers[master.id]
if layer.bounds is not None and layer.bounds.size.width > 0:
return False
return True
try:
# find next unallocated private-use codepoint
nextcp = 0xE000
for g in font.glyphs:
if g.unicodes is not None:
for c in [int(c, 16) for c in g.unicodes]:
if c <= 0xEFFF and c > nextcp:
nextcp = c + 1
print('nextcp: %X' % nextcp)
if DRY_RUN:
print('DRY_RUN mode (no actual changes will be made)')
print('————————————————')
# for printing
mappings = OrderedDict()
longest_gname = 0
# assign private-use codepoints to glyphs that have no existing unicode mapping
for g in font.glyphs:
# only care for glyphs which are being exported (also ignore "special" glyphs)
if g.export and g.name[0] != '.' and (g.unicodes is None or len(g.unicodes) == 0):
# error on empty glyphs -- there should be no unmapped empty glyphs
if isEmpty(g):
sys.stderr.write('ERR: glyph %r is empty but has no unicode mapping (skipping)\n' % g.name)
continue
unicodes = [hex(nextcp).upper()[2:]]
mappings[g.name] = unicodes[0]
if len(g.name) > longest_gname:
longest_gname = len(g.name)
if not DRY_RUN:
g.unicodes = unicodes
nextcp += 1
# print mappings made
for gname, cp in mappings.iteritems():
print('%s %s' % (gname.ljust(longest_gname), cp))
finally:
font.enableUpdateInterface()
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