Work around autoconf 2.63b bug in testsuite.

[bison.git] / tests / regression.at

diff --git a/tests/regression.at b/tests/regression.at
index 3b3272f37009eb932dbdfc539584b0324fa21609..fa2278a8f7ed6aaec8268a9da5c5b7a1cbcfe0d1 100644 (file)
--- a/tests/regression.at
+++ b/tests/regression.at
@@ -1,6 +1,6 @@
 # Bison Regressions.                               -*- Autotest -*-
 
-# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 Free Software
+# Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Free Software
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
@@ -39,7 +39,7 @@ int yylex (void);
 program: 'x';
 ]])
 
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
 AT_COMPILE([input.o], [-c input.c])
 AT_COMPILE([input.o], [-DYYDEBUG -c input.c])
 
@@ -67,7 +67,7 @@ typedef union { char const *val; } YYSTYPE;
 program: { $$ = ""; };
 ]])
 
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
 AT_COMPILE([input.o], [-c input.c])
 
 AT_CLEANUP
@@ -105,7 +105,7 @@ exp: MY_TOKEN;
 %%
 ]])
 
-AT_CHECK([bison -y -o input.c input.y])
+AT_BISON_CHECK([-y -o input.c input.y])
 AT_COMPILE([input.o], [-c input.c])
 
 AT_CLEANUP
@@ -148,7 +148,7 @@ exp: MY_TOKEN;
 %%
 ]])
 
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
 AT_COMPILE([input.o], [-c input.c])
 
 AT_CLEANUP
@@ -170,7 +170,7 @@ exp: { tests = {{{{{{{{{{}}}}}}}}}}; };
 %%
 ]])
 
-AT_CHECK([bison -v -o input.c input.y])
+AT_BISON_CHECK([-v -o input.c input.y])
 
 AT_CHECK([grep 'tests = {{{{{{{{{{}}}}}}}}}};' input.c], 0, [ignore])
 
@@ -197,7 +197,7 @@ exp: '(' exp ')' | NUM ;
 %%
 ]])
 
-AT_CHECK([bison -v -o input.c input.y], 0, [],
+AT_BISON_CHECK([-v -o input.c input.y], 0, [],
 [[input.y:6.8-14: warning: symbol `"<="' used more than once as a literal string
 ]])
 
@@ -242,7 +242,7 @@ expr:
 };
 ]])
 
-AT_CHECK([bison -o input.c -v input.y])
+AT_BISON_CHECK([-o input.c -v input.y])
 
 # Check the contents of the report.
 AT_CHECK([cat input.output], [],
@@ -364,7 +364,7 @@ exp: ;
 %%
 ]])
 
-AT_CHECK([bison -v -o input.c input.y])
+AT_BISON_CHECK([-v -o input.c input.y])
 
 AT_CLEANUP
 
@@ -387,7 +387,7 @@ default: 'a' }
 %{
 ]])
 
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
 [[input.y:2.1: invalid character: `?'
 input.y:3.14: invalid character: `}'
 input.y:4.1: invalid character: `%'
@@ -414,7 +414,7 @@ AT_DATA([input.y],
 %union
 ]])
 
-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],
 [[input.y:3.1-15: syntax error, unexpected %initial-action, expecting {...}
 ]])
 
@@ -444,6 +444,7 @@ int yylex (void);
 %token C_TOKEN 'c'
 %token 'd' D_TOKEN
 %token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"
+%token SPECIAL "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!"
 %%
 exp: "a" "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!";
 %%
@@ -469,10 +470,22 @@ main (void)
 }
 ]])
 
-AT_CHECK([bison -o input.c input.y])
+# Checking the warning message guarantees that the trigraph "??!" isn't
+# unnecessarily escaped here even though it would need to be if encoded in a
+# C-string literal.  Also notice that unnecessary escaping, such as "\?", from
+# the user specification is eliminated.
+AT_BISON_CHECK([-o input.c input.y], [[0]], [[]],
+[[input.y:22.8-14: warning: symbol SPECIAL redeclared
+input.y:22.8-63: warning: symbol `"\\'?\"\a\b\f\n\r\t\v\001\201\001\201??!"' used more than once as a literal string
+]])
 AT_COMPILE([input])
+
+# Checking the error message here guarantees that yytname, which does contain
+# C-string literals, does have the trigraph escaped correctly.  Thus, the
+# symbol name reported by the parser is exactly the same as that reported by
+# Bison itself.
 AT_DATA([experr],
-[[syntax error, unexpected "\\'?\"\a\b\f\n\r\t\v\001\201\001\201?\?!", expecting a
+[[syntax error, unexpected "\\'?\"\a\b\f\n\r\t\v\001\201\001\201??!", expecting a
 ]])
 AT_PARSER_CHECK([./input], 1, [], [experr])
 AT_CLEANUP
@@ -500,7 +513,7 @@ exp:
 ]])
 # Pacify font-lock-mode: "
 
-AT_CHECK([bison -o input.c input.y])
+AT_BISON_CHECK([-o input.c input.y])
 AT_COMPILE([input.o], [-c input.c])
 AT_CLEANUP
 
@@ -540,7 +553,7 @@ CONST_DEC:
 %%
 ]])
 
-AT_CHECK([bison -v input.y])
+AT_BISON_CHECK([-v input.y])
 AT_CHECK([cat input.output], 0,
 [[Grammar
 
@@ -705,7 +718,7 @@ else: "else" statement;
 %%
 ]])
 
-AT_CHECK([bison -v -o input.c input.y])
+AT_BISON_CHECK([-v -o input.c input.y])
 
 # Check only the tables.
 [sed -n 's/  *$//;/^static const.*\[\] =/,/^}/p' input.c >tables.c]
@@ -925,12 +938,8 @@ m4_define([AT_CHECK_DANCER],
 [AT_SETUP([Dancer $1])
 AT_BISON_OPTION_PUSHDEFS([$1])
 _AT_DATA_DANCER_Y([$1])
-AT_CHECK([bison -o dancer.c dancer.y])
-AT_LALR1_CC_IF(
-  [AT_CHECK([bison -o dancer.cc dancer.y])
-   AT_COMPILE_CXX([dancer])],
-  [AT_CHECK([bison -o dancer.c dancer.y])
-   AT_COMPILE([dancer])])
+AT_BISON_CHECK([-o dancer.c dancer.y])
+AT_FULL_COMPILE([dancer])
 AT_PARSER_CHECK([./dancer], 1, [],
 [syntax error, unexpected ':'
 ])
@@ -1025,12 +1034,8 @@ m4_define([AT_CHECK_EXPECT2],
 [AT_SETUP([Expecting two tokens $1])
 AT_BISON_OPTION_PUSHDEFS([$1])
 _AT_DATA_EXPECT2_Y([$1])
-AT_CHECK([bison -o expect2.c expect2.y])
-AT_LALR1_CC_IF(
-  [AT_CHECK([bison -o expect2.cc expect2.y])
-   AT_COMPILE_CXX([expect2])],
-  [AT_CHECK([bison -o expect2.c expect2.y])
-   AT_COMPILE([expect2])])
+AT_BISON_CHECK([-o expect2.c expect2.y])
+AT_FULL_COMPILE([expect2])
 AT_PARSER_CHECK([./expect2], 1, [],
 [syntax error, unexpected '+', expecting A or B
 ])
@@ -1096,7 +1101,7 @@ main (void)
 }
 ]])
 
-AT_CHECK([bison -t -o input.c input.y])
+AT_BISON_CHECK([-t -o input.c input.y])
 AT_COMPILE([input])
 AT_PARSER_CHECK([./input], 0,
 [[Bison would once convert this action to a midrule because of the subsequent braced code.
@@ -1137,7 +1142,7 @@ start: 'a' "A" 'b';
 %token 'a' "A";
 ]])
 
-AT_CHECK([bison -t -o input.c input.y])
+AT_BISON_CHECK([-t -o input.c input.y])
 
 AT_CLEANUP
 
@@ -1162,7 +1167,7 @@ start: a | 'a' a 'a' ;
 a: 'a' ;
 ]])
 
-AT_CHECK([[bison --report=all input.y]])
+AT_BISON_CHECK([[--report=all input.y]])
 AT_CHECK([[sed -n '/^state 1$/,/^state 2$/p' input.output]], [[0]],
 [[state 1
 
@@ -1181,3 +1186,88 @@ state 2
 ]])
 
 AT_CLEANUP
+
+
+
+## ---------------------------------------- ##
+## Token number in precedence declaration.  ##
+## ---------------------------------------- ##
+
+AT_SETUP([[Token number in precedence declaration]])
+
+# POSIX says token numbers can be declared in %left, %right, and %nonassoc, but
+# we lost this in Bison 1.50.
+
+AT_DATA_GRAMMAR([input.y],
+[[%{
+  #include <stdio.h>
+  void yyerror (char const *);
+  int yylex (void);
+%}
+
+%error-verbose
+%left TK1 1 TK2 2 "tok alias" 3
+
+%%
+
+start: TK1 sr_conflict "tok alias" ;
+
+sr_conflict:
+  TK2
+  | TK2 "tok alias"
+  ;
+
+%%
+
+void
+yyerror (char const *msg)
+{
+  fprintf (stderr, "%s\n", msg);
+}
+
+int
+yylex (void)
+{
+  static int const input[] = { 1, 2, 3, 0 };
+  static int const *inputp = input;
+  return *inputp++;
+}
+
+int
+main (void)
+{
+  return yyparse ();
+}
+]])
+
+AT_BISON_CHECK([[-o input.c input.y]], [[0]],,
+[[input.y:24.5-19: warning: rule useless in parser due to conflicts: sr_conflict: TK2 "tok alias"
+]])
+AT_COMPILE([[input]])
+AT_PARSER_CHECK([[./input]])
+
+AT_CLEANUP
+
+
+
+## ----------------------------------------------- ##
+## Fix user actions without a trailing semicolon.  ##
+## ----------------------------------------------- ##
+
+AT_SETUP([[Fix user actions without a trailing semicolon]])
+
+# This feature is undocumented, but we accidentally broke it in 2.3a, and there
+# was a complaint at:
+# <http://lists.gnu.org/archive/html/bug-bison/2008-11/msg00001.html>.
+
+AT_DATA([input.y],
+[[%%
+start: {asdffdsa} ;
+]])
+
+AT_BISON_CHECK([[-o input.c input.y]])
+AT_CHECK([[sed -n '/asdffdsa/s/^ *//p' input.c]], [[0]],
+[[{asdffdsa;}
+]])
+
+AT_CLEANUP