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added support for new try words in gforth.el
added compatibility files endtry-iferror.fs recover-endtry.fs

    1: \ provide TRY...RECOVER...ENDTRY on newer Gforth's
    2: 
    3: \ Copyright (C) 2007 Free Software Foundation, Inc.
    4: 
    5: \ This file is part of Gforth.
    6: 
    7: \ Gforth is free software; you can redistribute it and/or
    8: \ modify it under the terms of the GNU General Public License
    9: \ as published by the Free Software Foundation; either version 2
   10: \ of the License, or (at your option) any later version.
   11: 
   12: \ This program is distributed in the hope that it will be useful,
   13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
   14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   15: \ GNU General Public License for more details.
   16: 
   17: \ You should have received a copy of the GNU General Public License
   18: \ along with this program; if not, write to the Free Software
   19: \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
   20: 
   21: 
   22: \ this provides the old-style TRY...RECOVER...ENDTRY syntax, but after
   23: \ loading this file the system will be incompatible with the new-style
   24: \ TRY syntax.
   25: 
   26: [undefined] recover [if]
   27: 
   28:     : recover postpone endtry-iferror ; immediate compile-only
   29:     : endtry  postpone then ; immediate compile-only
   30: 
   31:     \ now undefine the new words
   32:     : iferror        -13 throw ; immediate
   33:     : restore        -13 throw ; immediate
   34:     : endtry-iferror -13 throw ; immediate
   35: [then]