Fix test failure reported by Tom Lane in

[bison.git] / tests / sets.at

diff --git a/tests/sets.at b/tests/sets.at
index 373271dc1a81e961499feaee0c870c469f098517..a731315b231e06386a62f5e5e8cd6f3565e93b85 100644 (file)
--- a/tests/sets.at
+++ b/tests/sets.at
@@ -1,5 +1,5 @@
 # Exercising Bison Grammar Sets.                      -*- Autotest -*-
-# Copyright (C) 2001, 2002 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002, 2005 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
@@ -13,8 +13,8 @@
 
 # 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.
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
 
 
 # AT_EXTRACT_SETS(INPUT, OUTPUT)
@@ -29,25 +29,25 @@ m4_define([AT_EXTRACT_SETS],
    :null
    p
    n
-   /^[         ]*$/ !b null
+   /^[  ]*$/ !b null
 }
 /^FIRSTS$/ {
    :firsts
    p
    n
-   /^[         ]*$/ !b firsts
+   /^[  ]*$/ !b firsts
 }
 /^FDERIVES$/ {
    :fderiv
    p
    n
-   /^[         ]*$/ !b fderiv
+   /^[  ]*$/ !b fderiv
 }
 /^DERIVES$/ {
    :deriv
    p
    n
-   /^[         ]*$/ !b deriv
+   /^[  ]*$/ !b deriv
 }
 ]])
 AT_CHECK([sed -f extract.sed $1], 0, [stdout])
@@ -252,3 +252,51 @@ FDERIVES
 ]])
 
 AT_CLEANUP
+
+
+
+
+## -------- ##
+## Accept.  ##
+## -------- ##
+
+# In some weird cases Bison could compute an incorrect final state
+# number.  This happens only if the $end token is used in the user
+# grammar, which is a very suspicious accidental feature introduced as
+# a side effect of allowing the user to name $end using `%token END 0
+# "end of file"'.
+
+AT_SETUP([Accept])
+
+AT_DATA([input.y],
+[[%token END 0
+%%
+input:
+  'a'
+| '(' input ')'
+| '(' error END
+;
+]])
+
+AT_CHECK([[bison -v -o input.c input.y]])
+
+# Get the final state in the parser.
+AT_CHECK([[sed -n 's/.*define YYFINAL *\([0-9][0-9]*\)/final state \1/p' input.c]],
+         0, [stdout])
+mv stdout expout
+
+# Get the final state in the report, from the "accept" action..
+AT_CHECK([sed -n '
+           /^state \(.*\)/{
+            s//final state \1/
+            x
+          }
+          / accept/{
+            x
+            p
+            q
+          }
+       ' input.output],
+       0, [expout])
+
+AT_CLEANUP