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#!/usr/bin/env python3
__doc__ = 'read anchor data from XML file and apply to UFO'
__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 Rowe'
from silfont.core import execute
from xml.etree import ElementTree as ET
argspec = [
('ifont',{'help': 'Input UFO'}, {'type': 'infont'}),
('ofont',{'help': 'Output UFO','nargs': '?' }, {'type': 'outfont'}),
('-i','--anchorinfo',{'help': 'XML file with anchor data'}, {'type': 'infile', 'def': '_anc.xml'}),
('-l','--log',{'help': 'Log file'}, {'type': 'outfile', 'def': '_anc.log'}),
('-a','--analysis',{'help': 'Analysis only; no output font generated', 'action': 'store_true'},{}),
('-d','--delete',{'help': 'Delete APs from a glyph before adding', 'action': 'store_true'}, {}),
# 'choices' for -r should correspond to infont.logger.loglevels.keys()
('-r','--report',{'help': 'Set reporting level for log', 'type':str, 'choices':['X','S','E','P','W','I','V']},{})
]
def doit(args) :
infont = args.ifont
if args.report: infont.logger.loglevel = args.report
glyphcount = 0
try:
for g in ET.parse(args.anchorinfo).getroot().findall('glyph'): ###
glyphcount += 1
gname = g.get('PSName')
if gname not in infont.deflayer.keys():
infont.logger.log("glyph element number " + str(glyphcount) + ": " + gname + " not in font, so skipping anchor data", "W")
continue
# anchors currently in font for this glyph
glyph = infont.deflayer[gname]
if args.delete:
glyph['anchor'].clear()
anchorsinfont = set([ ( a.element.get('name'), a.element.get('x'), a.element.get('y') ) for a in glyph['anchor']])
# anchors in XML file to be added
anchorstoadd = set()
for p in g.findall('point'):
name = p.get('type')
x = p[0].get('x') # assume subelement location is first child
y = p[0].get('y')
if name and x and y:
anchorstoadd.add( (name, x, y) )
else:
infont.logger.log("Incomplete information for anchor '" + name + "' for glyph " + gname, "E")
# compare sets
if anchorstoadd == anchorsinfont:
if len(anchorstoadd) > 0:
infont.logger.log("Anchors in file already in font for glyph " + gname + ": " + str(anchorstoadd), "V")
else:
infont.logger.log("No anchors in file or in font for glyph " + gname, "V")
else:
infont.logger.log("Anchors in file for glyph " + gname + ": " + str(anchorstoadd), "I")
infont.logger.log("Anchors in font for glyph " + gname + ": " + str(anchorsinfont), "I")
for name,x,y in anchorstoadd:
# if anchor being added exists in font already, delete it first
ancnames = [a.element.get('name') for a in glyph['anchor']]
infont.logger.log(str(ancnames), "V") ###
if name in ancnames:
infont.logger.log("removing anchor " + name + ", index " + str(ancnames.index(name)), "V") ###
glyph.remove('anchor', ancnames.index(name))
infont.logger.log("adding anchor " + name + ": (" + x + ", " + y + ")", "V") ###
glyph.add('anchor', {'name': name, 'x': x, 'y': y})
# If analysis only, return without writing output font
if args.analysis: return
# Return changed font and let execute() write it out
return infont
except ET.ParseError as mess:
infont.logger.log("Error parsing XML input file: " + str(mess), "S")
return # but really should terminate after logging Severe error above
def cmd() : execute("UFO",doit,argspec)
if __name__ == "__main__": cmd()
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