# Exercising Bison Grammar Sets. -*- Autotest -*-
-# Copyright (C) 2001, 2002 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.
+# Copyright (C) 2001-2002, 2005, 2007, 2009-2011 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 3 of the License, 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.
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
# AT_EXTRACT_SETS(INPUT, OUTPUT)
: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 $1], 0, [stdout])
e: 'e' | /* Nothing */;
]])
-AT_CHECK([[bison --trace=sets input.y]], [], [], [stderr])
+AT_BISON_CHECK([[--trace=sets input.y]], [], [], [stderr])
AT_EXTRACT_SETS([stderr], [sets])
AT_CHECK([[cat sets]], [],
[[DERIVES
h: 'h';
]])
-AT_CHECK([[bison --trace=sets input.y]], [], [], [stderr])
+AT_BISON_CHECK([[--trace=sets input.y]], [], [], [stderr])
AT_CHECK([[sed -n 's/[ ]*$//;/^RTC: Firsts Output BEGIN/,/^RTC: Firsts Output END/p' stderr]], [],
[[RTC: Firsts Output BEGIN
;
]])
-AT_CHECK([[bison --trace=sets input.y]], [], [], [stderr])
+AT_BISON_CHECK([[--trace=sets input.y]], [], [], [stderr])
AT_EXTRACT_SETS([stderr], [sets])
AT_CHECK([[cat sets]], [],
[[DERIVES
]])
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_BISON_CHECK([[-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