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[bison.git] / tests / reduce.at

diff --git a/tests/reduce.at b/tests/reduce.at
index ba9d27edd8e9cbcf0e49ffbf7039a96ac5a05c57..9e0124818d2a60c07b476f0b9e09bfce400dda3d 100644 (file)
--- a/tests/reduce.at
+++ b/tests/reduce.at
@@ -1,20 +1,18 @@
 # Exercising Bison Grammar Reduction.                      -*- Autotest -*-
-# Copyright 2001 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2002 Free Software Foundation, Inc.
 
-# This program is free software; you can redistribute it and/or modify
+# 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.
-
+# 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_BANNER([[Grammar Reduction.]])
 
@@ -27,7 +25,7 @@ AT_SETUP([Useless Terminals])
 
 AT_DATA([[input.y]],
 [[%verbose
-%output="input.c"
+%output "input.c"
 
 %token useless1
 %token useless2
@@ -47,7 +45,7 @@ exp: useful;
 AT_CHECK([[bison input.y]])
 
 AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
-[[Terminals which are not used:
+[[Terminals which are not used
    useless1
    useless2
    useless3
@@ -71,7 +69,7 @@ AT_SETUP([Useless Nonterminals])
 
 AT_DATA([[input.y]],
 [[%verbose
-%output="input.c"
+%output "input.c"
 
 %nterm useless1
 %nterm useless2
@@ -102,7 +100,7 @@ input.y:12.8-15: warning: useless nonterminal: useless9
 ]])
 
 AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
-[[Useless nonterminals:
+[[Useless nonterminals
    useless1
    useless2
    useless3
@@ -124,9 +122,11 @@ AT_CLEANUP
 
 AT_SETUP([Useless Rules])
 
+AT_KEYWORDS([report])
+
 AT_DATA([[input.y]],
 [[%verbose
-%output="input.c"
+%output "input.c"
 %token useful
 %%
 exp: useful;
@@ -152,19 +152,19 @@ input.y:11.1-8: warning: useless nonterminal: useless6
 input.y:12.1-8: warning: useless nonterminal: useless7
 input.y:13.1-8: warning: useless nonterminal: useless8
 input.y:14.1-8: warning: useless nonterminal: useless9
-input.y:6.9-13: warning: useless rule: useless1: '1'
-input.y:7.9-13: warning: useless rule: useless2: '2'
-input.y:8.9-13: warning: useless rule: useless3: '3'
-input.y:9.9-13: warning: useless rule: useless4: '4'
-input.y:10.9-13: warning: useless rule: useless5: '5'
-input.y:11.9-13: warning: useless rule: useless6: '6'
-input.y:12.9-13: warning: useless rule: useless7: '7'
-input.y:13.9-13: warning: useless rule: useless8: '8'
-input.y:14.9-13: warning: useless rule: useless9: '9'
+input.y:6.11-13: warning: useless rule: useless1: '1'
+input.y:7.11-13: warning: useless rule: useless2: '2'
+input.y:8.11-13: warning: useless rule: useless3: '3'
+input.y:9.11-13: warning: useless rule: useless4: '4'
+input.y:10.11-13: warning: useless rule: useless5: '5'
+input.y:11.11-13: warning: useless rule: useless6: '6'
+input.y:12.11-13: warning: useless rule: useless7: '7'
+input.y:13.11-13: warning: useless rule: useless8: '8'
+input.y:14.11-13: warning: useless rule: useless9: '9'
 ]])
 
 AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
-[[Useless nonterminals:
+[[Useless nonterminals
    useless1
    useless2
    useless3
@@ -174,7 +174,7 @@ AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
    useless7
    useless8
    useless9
-Terminals which are not used:
+Terminals which are not used
    '1'
    '2'
    '3'
@@ -184,16 +184,16 @@ Terminals which are not used:
    '7'
    '8'
    '9'
-Useless rules:
-#2     useless1: '1';
-#3     useless2: '2';
-#4     useless3: '3';
-#5     useless4: '4';
-#6     useless5: '5';
-#7     useless6: '6';
-#8     useless7: '7';
-#9     useless8: '8';
-#10    useless9: '9';
+Useless rules
+    2 useless1: '1'
+    3 useless2: '2'
+    4 useless3: '3'
+    5 useless4: '4'
+    6 useless5: '5'
+    7 useless6: '6'
+    8 useless7: '7'
+    9 useless8: '8'
+   10 useless9: '9'
 ]])
 
 AT_CLEANUP
@@ -209,6 +209,8 @@ AT_CLEANUP
 
 AT_SETUP([Reduced Automaton])
 
+AT_KEYWORDS([report])
+
 # The non reduced grammar.
 # ------------------------
 AT_DATA([[not-reduced.y]],
@@ -217,7 +219,7 @@ AT_DATA([[not-reduced.y]],
 /* A useful one. */
 %token useful
 %verbose
-%output="not-reduced.c"
+%output "not-reduced.c"
 
 %%
 
@@ -238,21 +240,21 @@ AT_CHECK([[bison not-reduced.y]], 0, [],
 [[not-reduced.y: warning: 2 useless nonterminals and 3 useless rules
 not-reduced.y:14.1-13: warning: useless nonterminal: not_reachable
 not-reduced.y:11.6-19: warning: useless nonterminal: non_productive
-not-reduced.y:11.4-57: warning: useless rule: exp: non_productive
-not-reduced.y:14.14-56: warning: useless rule: not_reachable: useful
-not-reduced.y:17.15-18.63: warning: useless rule: non_productive: non_productive useless_token
+not-reduced.y:11.6-57: warning: useless rule: exp: non_productive
+not-reduced.y:14.16-56: warning: useless rule: not_reachable: useful
+not-reduced.y:17.17-18.63: warning: useless rule: non_productive: non_productive useless_token
 ]])
 
 AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' not-reduced.output]], 0,
-[[Useless nonterminals:
+[[Useless nonterminals
    not_reachable
    non_productive
-Terminals which are not used:
+Terminals which are not used
    useless_token
-Useless rules:
-#2     exp: non_productive;
-#3     not_reachable: useful;
-#4     non_productive: non_productive useless_token;
+Useless rules
+    2 exp: non_productive
+    3 not_reachable: useful
+    4 non_productive: non_productive useless_token
 ]])
 
 # The reduced grammar.
@@ -263,7 +265,7 @@ AT_DATA([[reduced.y]],
 /* A useful one. */
 %token useful
 %verbose
-%output="reduced.c"
+%output "reduced.c"
 
 %%
 
@@ -296,9 +298,11 @@ AT_CLEANUP
 
 AT_SETUP([Underivable Rules])
 
+AT_KEYWORDS([report])
+
 AT_DATA([[input.y]],
 [[%verbose
-%output="input.c"
+%output "input.c"
 %token useful
 %%
 exp: useful | underivable;
@@ -310,19 +314,40 @@ AT_CHECK([[bison input.y]], 0, [],
 [[input.y: warning: 2 useless nonterminals and 3 useless rules
 input.y:5.15-25: warning: useless nonterminal: underivable
 input.y:6.14-24: warning: useless nonterminal: indirection
-input.y:5.13-25: warning: useless rule: exp: underivable
-input.y:6.12-24: warning: useless rule: underivable: indirection
-input.y:7.12-24: warning: useless rule: indirection: underivable
+input.y:5.15-25: warning: useless rule: exp: underivable
+input.y:6.14-24: warning: useless rule: underivable: indirection
+input.y:7.14-24: warning: useless rule: indirection: underivable
 ]])
 
 AT_CHECK([[sed -n '/^Grammar/q;/^$/!p' input.output]], 0,
-[[Useless nonterminals:
+[[Useless nonterminals
    underivable
    indirection
-Useless rules:
-#2     exp: underivable;
-#3     underivable: indirection;
-#4     indirection: underivable;
+Useless rules
+    2 exp: underivable
+    3 underivable: indirection
+    4 indirection: underivable
+]])
+
+AT_CLEANUP
+
+
+
+## ---------------- ##
+## Empty Language.  ##
+## ---------------- ##
+
+AT_SETUP([Empty Language])
+
+AT_DATA([[input.y]],
+[[%output "input.c"
+%%
+exp: exp;
+]])
+
+AT_CHECK([[bison input.y]], 1, [],
+[[input.y: warning: 2 useless nonterminals and 2 useless rules
+input.y:3.1-3: fatal error: start symbol exp does not derive any sentence
 ]])
 
 AT_CLEANUP