Formatting changes.

[bison.git] / tests / regression.at

diff --git a/tests/regression.at b/tests/regression.at
index caf445e6b4dc1b03b73db02dad6753d8eeee74f1..a4b20de5a343ea79e9cc00fe0f007574fb3af19a 100644 (file)
--- a/tests/regression.at
+++ b/tests/regression.at
@@ -1,6 +1,6 @@
 # Bison Regressions.                               -*- Autotest -*-
 
 # 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
 # Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify


@@ -39,7 +39,7 @@ int yylex (void);
 program: 'x';
 ]])
 
 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])
 
 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: { $$ = ""; };
 ]])
 
 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
 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
 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
 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])
 
 
 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
 ]])
 
 [[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], [],
 
 # 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
 
 
 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: `%'
 [[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
 ]])
 
 %union
 ]])
 

-AT_CHECK([bison input.y], [1], [],
+AT_BISON_CHECK([input.y], [1], [],

 [[input.y:3.1-15: syntax error, unexpected %initial-action, expecting {...}
 ]])
 
 [[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 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??!";
 %%
 %%
 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])
 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],
 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
 ]])
 AT_PARSER_CHECK([./input], 1, [], [experr])
 AT_CLEANUP


@@ -500,7 +513,7 @@ exp:
 ]])
 # Pacify font-lock-mode: "
 
 ]])
 # 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
 
 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
 
 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]
 
 # Check only the tables.
 [sed -n 's/  *$//;/^static const.*\[\] =/,/^}/p' input.c >tables.c]


@@ -741,15 +754,6 @@ AT_CHECK([[cat tables.c]], 0,
        2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
        5,     6
 };
        2,     2,     2,     2,     2,     2,     1,     2,     3,     4,
        5,     6
 };

-static const yytype_uint8 yyprhs[] =
-{
-       0,     0,     3,     5,     6,     9,    14
-};
-static const yytype_int8 yyrhs[] =
-{
-       8,     0,    -1,     9,    -1,    -1,    10,    11,    -1,     3,
-       4,     5,     8,    -1,     6,     8,    -1
-};

 static const yytype_uint8 yyrline[] =
 {
        0,     2,     2,     3,     3,     4,     5
 static const yytype_uint8 yyrline[] =
 {
        0,     2,     2,     3,     3,     4,     5


@@ -763,32 +767,24 @@ static const yytype_uint16 yytoknum[] =
 {
        0,   256,   257,   258,   259,   260,   261
 };
 {
        0,   256,   257,   258,   259,   260,   261
 };

-static const yytype_uint8 yyr1[] =
-{
-       0,     7,     8,     9,     9,    10,    11
-};
-static const yytype_uint8 yyr2[] =
+static const yytype_int8 yypact[] =

 {
 {

-       0,     2,     1,     0,     2,     4,     2
+      -2,    -1,     4,    -8,     0,     2,    -8,    -2,    -8,    -2,
+      -8,    -8

 };
 static const yytype_uint8 yydefact[] =
 {
        3,     0,     0,     2,     0,     0,     1,     3,     4,     3,
        6,     5
 };
 };
 static const yytype_uint8 yydefact[] =
 {
        3,     0,     0,     2,     0,     0,     1,     3,     4,     3,
        6,     5
 };

-static const yytype_int8 yydefgoto[] =
-{
-      -1,     2,     3,     4,     8
-};
-static const yytype_int8 yypact[] =
-{
-      -2,    -1,     4,    -8,     0,     2,    -8,    -2,    -8,    -2,
-      -8,    -8
-};

 static const yytype_int8 yypgoto[] =
 {
       -8,    -7,    -8,    -8,    -8
 };
 static const yytype_int8 yypgoto[] =
 {
       -8,    -7,    -8,    -8,    -8
 };

+static const yytype_int8 yydefgoto[] =
+{
+      -1,     2,     3,     4,     8
+};

 static const yytype_uint8 yytable[] =
 {
       10,     1,    11,     5,     6,     0,     7,     9
 static const yytype_uint8 yytable[] =
 {
       10,     1,    11,     5,     6,     0,     7,     9


@@ -802,6 +798,14 @@ static const yytype_uint8 yystos[] =
        0,     3,     8,     9,    10,     4,     0,     6,    11,     5,
        8,     8
 };
        0,     3,     8,     9,    10,     4,     0,     6,    11,     5,
        8,     8
 };

+static const yytype_uint8 yyr1[] =
+{
+       0,     7,     8,     9,     9,    10,    11
+};
+static const yytype_uint8 yyr2[] =
+{
+       0,     2,     1,     0,     2,     4,     2
+};

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -874,7 +878,7 @@ member: STRING
 AT_LALR1_CC_IF(
 [/* A C++ error reporting function. */
 void
 AT_LALR1_CC_IF(
 [/* A C++ error reporting function. */
 void

-yy::parser::error (const location&, const std::string& m)
+yy::parser::error (const std::string& m)

 {
   std::cerr << m << std::endl;
 }
 {
   std::cerr << m << std::endl;
 }


@@ -925,12 +929,8 @@ m4_define([AT_CHECK_DANCER],
 [AT_SETUP([Dancer $1])
 AT_BISON_OPTION_PUSHDEFS([$1])
 _AT_DATA_DANCER_Y([$1])
 [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 ':'
 ])
 AT_PARSER_CHECK([./dancer], 1, [],
 [syntax error, unexpected ':'
 ])


@@ -977,7 +977,7 @@ t: A | B;
 AT_LALR1_CC_IF(
 [/* A C++ error reporting function. */
 void
 AT_LALR1_CC_IF(
 [/* A C++ error reporting function. */
 void

-yy::parser::error (const location&, const std::string& m)
+yy::parser::error (const std::string& m)

 {
   std::cerr << m << std::endl;
 }
 {
   std::cerr << m << std::endl;
 }


@@ -1025,12 +1025,8 @@ m4_define([AT_CHECK_EXPECT2],
 [AT_SETUP([Expecting two tokens $1])
 AT_BISON_OPTION_PUSHDEFS([$1])
 _AT_DATA_EXPECT2_Y([$1])
 [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
 ])
 AT_PARSER_CHECK([./expect2], 1, [],
 [syntax error, unexpected '+', expecting A or B
 ])


@@ -1096,7 +1092,7 @@ 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.
 AT_COMPILE([input])
 AT_PARSER_CHECK([./input], 0,
 [[Bison would once convert this action to a midrule because of the subsequent braced code.


@@ -1137,6 +1133,108 @@ start: 'a' "A" 'b';
 %token 'a' "A";
 ]])
 
 %token 'a' "A";
 ]])
 

-AT_CHECK([bison -t -o input.c input.y])
+AT_BISON_CHECK([-t -o input.c input.y])
+
+AT_CLEANUP
+
+
+
+## -------------------------------- ##
+## Extra lookahead sets in report.  ##
+## -------------------------------- ##
+
+AT_SETUP([[Extra lookahead sets in report]])
+
+# Bison prints each reduction's lookahead set only next to the associated
+# state's one item that (1) is associated with the same rule as the reduction
+# and (2) has its dot at the end of its RHS.  Previously, Bison also
+# erroneously printed the lookahead set next to all of the state's other items
+# associated with the same rule.  This bug affected only the `.output' file and
+# not the generated parser source code.
+
+AT_DATA([[input.y]],
+[[%%
+start: a | 'a' a 'a' ;
+a: 'a' ;
+]])
+
+AT_BISON_CHECK([[--report=all input.y]])
+AT_CHECK([[sed -n '/^state 1$/,/^state 2$/p' input.output]], [[0]],
+[[state 1
+
+    2 start: 'a' . a 'a'
+    3 a: . 'a'
+    3  | 'a' .  [$end]
+
+    'a'  shift, and go to state 4
+
+    $default  reduce using rule 3 (a)
+
+    a  go to state 5
+
+
+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
 
 AT_CLEANUP