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#!/usr/bin/env python
'''Write mapping of graphite names to new graphite names based on:
- an original ttf font
- the gdl file produced by makeGdl when original font was produced
- a csv mapping glyph names used in original ttf to those in the new font
- pysilfont's gdl library - so assumes pysilfonts makeGdl will be used with new font'''
__url__ = 'http://github.com/silnrsi/pysilfont'
__copyright__ = 'Copyright (c) 2016 SIL International (http://www.sil.org)'
__license__ = 'Released under the MIT License (http://opensource.org/licenses/MIT)'
__author__ = 'David Raymond'
from silfont.core import execute
import silfont.gdl.psnames as ps
import datetime
suffix = "_mapGDLnames"
argspec = [
('ifont',{'help': 'Input ttf font file'}, {'type': 'infont'}),
('-g','--gdl',{'help': 'Input gdl file'}, {'type': 'infile', 'def': '.gdl'}),
('-m','--mapping',{'help': 'Mapping csv file'}, {'type': 'incsv', 'def': '_map.csv'}),
('-o','--output',{'help': 'Ouput csv file'}, {'type': 'outfile', 'def': suffix+'.csv'}),
('-l','--log',{'help': 'Log file'}, {'type': 'outfile', 'def': suffix+'.log'}),
('--nocomments',{'help': 'No comments in output files', 'action': 'store_true', 'default': False},{})]
def doit(args) :
logger = args.paramsobj.logger
# Check input font is a ttf
fontfile = args.cmdlineargs[1]
if fontfile[-3:] != "ttf" :
logger.log("Input font needs to be a ttf file", "S")
font = args.ifont
gdlfile = args.gdl
mapping = args.mapping
outfile = args.output
# Add initial comments to outfile
if not args.nocomments :
outfile.write("# " + datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S ") + args.cmdlineargs[0] + "\n")
outfile.write("# "+" ".join(args.cmdlineargs[1:])+"\n\n")
# Process gdl file
oldgrnames = {}
for line in args.gdl :
# Look for lines of format <grname> = glyphid(nnn)...
pos = line.find(" = glyphid(")
if pos == -1 : continue
grname = line[0:pos]
gid = line[pos+11:line.find(")")]
oldgrnames[int(gid)]=grname
# Create map from AGL name to new graphite name
newgrnames = {}
mapping.numfields = 2
for line in mapping :
AGLname = line[1]
SILname = line[0]
grname = ps.Name(SILname).GDL()
newgrnames[AGLname] = grname
# Find glyph names in ttf font
for glyph in font.glyphs():
gid = glyph.originalgid
gname = glyph.glyphname
oldgrname = oldgrnames[gid] if gid in oldgrnames else None
newgrname = newgrnames[gname] if gname in newgrnames else None
outfile.write(oldgrname + "," + newgrname+"\n")
outfile.close()
return
execute("FF",doit, argspec)
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