1 files changed, 79 insertions, 0 deletions
diff --git a/lib/silfont/scripts/psfsetunicodes.py b/lib/silfont/scripts/psfsetunicodes.py
new file mode 100755
index 0000000..aac1778
--- /dev/null
+++ b/lib/silfont/scripts/psfsetunicodes.py
@@ -0,0 +1,79 @@
+#!/usr/bin/env python
+__doc__ = '''Set the unicodes of glyphs in a font based on an external csv file.
+- csv format glyphname,unicode, [unicode2, [,unicode3]]'''
+__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__ = '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()