1: \ -> (to/is replacement) recognizer
3: \ Copyright (C) 2012 Free Software Foundation, Inc.
5: \ This file is part of Gforth.
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 3
10: \ of the License, or (at your option) any later version.
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.
17: \ You should have received a copy of the GNU General Public License
18: \ along with this program. If not, see http://www.gnu.org/licenses/.
20: ' (int-to) ' (comp-to) ' lit, recognizer: r:to
22: : to-recognizer ( addr u -- xt r:to | addr u r:fail )
23: 2dup s" ->" string-prefix? 0= IF r:fail EXIT THEN
24: 2dup 2 /string dup 0= IF 2drop r:fail EXIT THEN
25: find-name dup 0= IF drop r:fail EXIT THEN
26: name>comp drop nip nip r:to ;
28: ' to-recognizer
29: forth-recognizer get-recognizers
30: 1+ forth-recognizer set-recognizers