ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
c
c HTCd - Copyright (C) 1998-2006 Henrik Rydberg
c
c This program is free software; you can redistribute it and/or modify
c it under the terms of the GNU General Public License as published by
c the Free Software Foundation; either version 2 of the License, or
c (at your option) any later version.
c
c This program is distributed in the hope that it will be useful,
c but WITHOUT ANY WARRANTY; without even the implied warranty of
c MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
c GNU General Public License for more details.
c
c You should have received a copy of the GNU General Public License
c along with this program; if not, write to the Free Software
c Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
c

      integer function skip_parentesis(s,n,left,right,esc)
      character s(0:1),left,right,esc
      integer i,n,cnt
      if(n.eq.0)go to 40
      if(s(0).ne.left)go to 40
      cnt=1
      do 10 i=1,n-1
         if(s(i-1).eq.esc)go to 10
         if(s(i).eq.right)then
            cnt=cnt-1
            if(cnt.eq.0)go to 30
         else if(s(i).eq.left)then
            cnt=cnt+1
         end if
 10   continue
 20   skip_parentesis=-1
      return
 30   skip_parentesis=i+1
      return
 40   skip_parentesis=0
      return
      end