# Bison Semantic Parsers. -*- Autotest -*- # Copyright 2001 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 2, 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, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA # 02111-1307, USA. AT_BANNER([[Semantic Parsers.]]) # Well, nothing, or almost, is known about semantic parsers. For the # time being, just make sure we still parse them properly. ## ---------------- ## ## Parsing Guards. ## ## ---------------- ## AT_SETUP([Parsing Guards]) AT_DATA([input.y], [[%semantic-parser %union { int ival; } %token INT %type exp %% exp: exp '+' exp { $$ = $1 + $3 } | exp '/' exp %guard { if ($3 == 0) yyerror = 1 } { $$ = $1 / $3 } | INT %% ]]) AT_CHECK([bison -v input.y -o input.c], 0, ignore, ignore) AT_CLEANUP