tfm/tfm_ligature.c


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# tfm_ligature.c: deal with TFM ligature lists.
#
# Copyright (C) 1992, 2011 Free Software Foundation, Inc.
#
# 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/>.
#


#include "config.h"

#include "tfm.h"


/* The character RIGHT may or may not be in LIG_LIST already.
   Update it if so, otherwise add it.  */

void
tfm_set_ligature (list_type *lig_list, charcode_type right, charcode_type l)
{
  unsigned this_right;
  tfm_ligature_type *new_ligature;
  
  for (this_right = 0; this_right < LIST_SIZE (*lig_list); this_right++)
    {
      tfm_ligature_type *ligature = LIST_ELT (*lig_list, this_right);

      if (ligature->character == right)
	{
	  ligature->ligature = l;
          return;
        }
    }

  /* RIGHT wasn't in the existing list.  Add it to the end.  */
  new_ligature = LIST_TAPPEND (lig_list, tfm_ligature_type);
  new_ligature->character = right;
  new_ligature->ligature = l;
}