alt_sub.ff

/*
 * Copyright (C) 2009 Andrey V. Panov 
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 */

# This fontforge script proposed for making tnum substitutions to glyphs with ".tab" suffix

AddLookup("Stylistic set 01", "gsub_single", 0, [["ss01",[["cyrl",["dflt"]],["grek",["dflt"]],["latn",["dflt"]]]]])
AddLookupSubtable("Stylistic set 01", "Stylistic set 01 subtable")
#Select(0u300,0u331)
 SelectWorthOutputting() 
 selection=$selection
 j=SizeOf(selection)
 SelectNone()
 i=0
 #foreach
 while(i<j)
  if ( selection[i] && SelectIf(i) == 1)
   name = GlyphInfo ("Name")
   cap_end=Strstr(name, ".alt")
   if (cap_end > 0)
    cap_name=Strsub(name, 0, cap_end)
    if (Strlen(name) == (Strlen(cap_name) + 4))
     low = UCodePoint(UnicodeFromName(cap_name))
     Select(low)
     AddPosSub("Stylistic set 01 subtable", name);
    endif
   endif
  endif
 i++ 
 endloop
 SelectNone()