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#!/usr/bin/env python
'Add empty Opentype tables to ttf font'
__url__ = 'http://github.com/silnrsi/pysilfont'
__copyright__ = 'Copyright (c) 2014 SIL International (http://www.sil.org)'
__license__ = 'Released under the MIT License (http://opensource.org/licenses/MIT)'
__author__ = 'Martin Hosken'
from silfont.core import execute
from fontTools import ttLib
from fontTools.ttLib.tables import otTables
argspec = [
('ifont',{'help': 'Input font file'}, {'type': 'infont'}),
('ofont',{'help': 'Output font file','nargs': '?' }, {'type': 'outfont'}),
('-l','--log',{'help': 'Log file'}, {'type': 'outfile', 'def': '_conv.log'}),
('-s','--script',{'help': 'Script tag to generate [DFLT]', 'default': 'DFLT', }, {}),
('-t','--type',{'help': 'Table to create: gpos, gsub, [both]', 'default': 'both', }, {}) ]
def doit(args) :
font = args.ifont
args.type = args.type.upper()
for tag in ('GSUB', 'GPOS') :
if tag == args.type or args.type == 'BOTH' :
table = ttLib.getTableClass(tag)()
t = getattr(otTables, tag, None)()
t.Version = 1.0
t.ScriptList = otTables.ScriptList()
t.ScriptList.ScriptRecord = []
t.FeatureList = otTables.FeatureList()
t.FeatureList.FeatureRecord = []
t.LookupList = otTables.LookupList()
t.LookupList.Lookup = []
srec = otTables.ScriptRecord()
srec.ScriptTag = args.script
srec.Script = otTables.Script()
srec.Script.DefaultLangSys = None
srec.Script.LangSysRecord = []
t.ScriptList.ScriptRecord.append(srec)
t.ScriptList.ScriptCount = 1
t.FeatureList.FeatureCount = 0
t.LookupList.LookupCount = 0
table.table = t
font[tag] = table
return font
def cmd() : execute("FT",doit, argspec)
if __name__ == "__main__": cmd()
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