regen

[bison.git] / tests / regression.at

diff --git a/tests/regression.at b/tests/regression.at
index 4208153a37bd99446d38834861f27c5a0b005c61..f17359416a9e1ba448ee0e71eef4353eb5961b7c 100644 (file)
--- a/tests/regression.at
+++ b/tests/regression.at
@@ -209,7 +209,7 @@ exp: '(' exp ')' | NUM ;
 AT_BISON_OPTION_POPDEFS
 
 AT_BISON_CHECK([-v -o input.c input.y], 0, [],
 AT_BISON_OPTION_POPDEFS
 
 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 [-Wother]

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -401,15 +401,15 @@ default: 'a' }
 ]])
 
 AT_BISON_CHECK([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:4.2: invalid character: '&'
-input.y:5.1-17: invalid directive: '%a-does-not-exist'
-input.y:6.1: invalid character: '%'
-input.y:6.2: invalid character: '-'
-input.y:7.1-8.0: missing '%}' at end of file
-input.y:7.1-8.0: syntax error, unexpected %{...%}
+[[input.y:2.1: error: invalid character: '?'
+input.y:3.14: error: invalid character: '}'
+input.y:4.1: error: invalid character: '%'
+input.y:4.2: error: invalid character: '&'
+input.y:5.1-17: error: invalid directive: '%a-does-not-exist'
+input.y:6.1: error: invalid character: '%'
+input.y:6.2: error: invalid character: '-'
+input.y:7.1-8.0: error: missing '%}' at end of file
+input.y:7.1-8.0: error: syntax error, unexpected %{...%}

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -428,7 +428,7 @@ AT_DATA([input.y],
 ]])
 
 AT_BISON_CHECK([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: error: syntax error, unexpected %initial-action, expecting {...}

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -463,15 +463,7 @@ AT_DATA_GRAMMAR([input.y],
 exp: "a" "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!";
 %%
 ]AT_YYERROR_DEFINE[
 exp: "a" "\\\'\?\"\a\b\f\n\r\t\v\001\201\x001\x000081??!";
 %%
 ]AT_YYERROR_DEFINE[

-
-int
-yylex (void)
-{
-  static int called;
-  if (called++)
-    abort ();
-  return SPECIAL;
-}
+]AT_YYLEX_DEFINE([{ SPECIAL }])[

 
 int
 main (void)
 
 int
 main (void)


@@ -486,8 +478,8 @@ AT_BISON_OPTION_POPDEFS
 # 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]], [[]],
 # 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
+[[input.y:22.8-14: warning: symbol SPECIAL redeclared [-Wother]
+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 [-Wother]

 ]])
 AT_COMPILE([input])
 
 ]])
 AT_COMPILE([input])
 


@@ -546,7 +538,7 @@ AT_SETUP([Web2c Report])
 AT_KEYWORDS([report])
 
 AT_DATA([input.y],
 AT_KEYWORDS([report])
 
 AT_DATA([input.y],

-[[%token       undef_id_tok const_id_tok
+[[%token        undef_id_tok const_id_tok

 
 %start CONST_DEC_PART
 \f
 
 %start CONST_DEC_PART
 \f


@@ -556,12 +548,12 @@ CONST_DEC_PART:
         ;
 
 CONST_DEC_LIST:
         ;
 
 CONST_DEC_LIST:

-         CONST_DEC
+          CONST_DEC

         | CONST_DEC_LIST CONST_DEC
         ;
 
 CONST_DEC:
         | CONST_DEC_LIST CONST_DEC
         ;
 
 CONST_DEC:

-         { } undef_id_tok '=' const_id_tok ';'
+          { } undef_id_tok '=' const_id_tok ';'

         ;
 %%
 ]])
         ;
 %%
 ]])


@@ -767,15 +759,6 @@ 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


@@ -789,32 +772,24 @@ 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


@@ -828,6 +803,14 @@ 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


@@ -846,13 +829,11 @@ AT_CLEANUP
 # so that possible bound checking compilers could check all the skeletons.
 m4_define([_AT_DATA_DANCER_Y],
 [AT_DATA_GRAMMAR([dancer.y],
 # so that possible bound checking compilers could check all the skeletons.
 m4_define([_AT_DATA_DANCER_Y],
 [AT_DATA_GRAMMAR([dancer.y],

-[%{
-static int yylex (AT_LALR1_CC_IF([int *], [void]));
-AT_LALR1_CC_IF([],
-[#include <stdlib.h>
-#include <stdio.h>
-]AT_YYERROR_DECLARE[])
-%}
+[[%code provides
+{
+  ]AT_YYERROR_DECLARE[
+  ]AT_YYLEX_DECLARE[
+}

 $1
 %token ARROW INVALID NUMBER STRING DATA
 %defines
 $1
 %token ARROW INVALID NUMBER STRING DATA
 %defines


@@ -897,7 +878,8 @@ member: STRING
    | INVALID
    ;
 %%
    | INVALID
    ;
 %%

-AT_YYERROR_DEFINE[
+]AT_YYERROR_DEFINE[
+]AT_YYLEX_DEFINE([":"])[

 ]AT_LALR1_CC_IF(
 [int
 yyparse ()
 ]AT_LALR1_CC_IF(
 [int
 yyparse ()


@@ -908,28 +890,14 @@ yyparse ()
 #endif
   return parser.parse ();
 }
 #endif
   return parser.parse ();
 }

-])
-
-static int
-yylex (AT_LALR1_CC_IF([int *lval], [void]))
-[{
-  static int const tokens[] =
-    {
-      ':', -1
-    };
-  static size_t toknum;
-  ]AT_LALR1_CC_IF([*lval = 0; /* Pacify GCC.  */])[
-  if (! (toknum < sizeof tokens / sizeof *tokens))
-    abort ();
-  return tokens[toknum++];
-}]
+])[

 
 int
 main (void)
 {
   return yyparse ();
 }
 
 int
 main (void)
 {
   return yyparse ();
 }

-])
+]])

 ])# _AT_DATA_DANCER_Y
 
 
 ])# _AT_DATA_DANCER_Y
 
 


@@ -940,7 +908,6 @@ 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_BISON_CHECK([-o dancer.c dancer.y])

 AT_FULL_COMPILE([dancer])
 AT_PARSER_CHECK([./dancer], 1, [],
 [syntax error, unexpected ':'
 AT_FULL_COMPILE([dancer])
 AT_PARSER_CHECK([./dancer], 1, [],
 [syntax error, unexpected ':'


@@ -963,11 +930,11 @@ AT_CHECK_DANCER([%skeleton "lalr1.cc"])
 # --------------------------------
 m4_define([_AT_DATA_EXPECT2_Y],
 [AT_DATA_GRAMMAR([expect2.y],
 # --------------------------------
 m4_define([_AT_DATA_EXPECT2_Y],
 [AT_DATA_GRAMMAR([expect2.y],

-[[%{
-static int yylex (]AT_LALR1_CC_IF([int *], [void]));
-AT_LALR1_CC_IF([],
-[[#include <stdio.h>
-#include <stdlib.h>
+[%{
+static int yylex (AT_LALR1_CC_IF([int *], [void]));
+AT_LALR1_CC_IF([[#include <cstdlib>]],
+[[#include <stdlib.h>
+#include <stdio.h>

 ]AT_YYERROR_DECLARE])[
 %}
 $1
 ]AT_YYERROR_DECLARE])[
 %}
 $1


@@ -995,6 +962,7 @@ yyparse ()
 }
 ])[
 
 }
 ])[
 

+#include <assert.h>

 static int
 yylex (]AT_LALR1_CC_IF([int *lval], [void])[)
 {
 static int
 yylex (]AT_LALR1_CC_IF([int *lval], [void])[)
 {


@@ -1004,8 +972,7 @@ yylex (]AT_LALR1_CC_IF([int *lval], [void])[)
     };
   static size_t toknum;
   ]AT_LALR1_CC_IF([*lval = 0; /* Pacify GCC.  */])[
     };
   static size_t toknum;
   ]AT_LALR1_CC_IF([*lval = 0; /* Pacify GCC.  */])[

-  if (! (toknum < sizeof tokens / sizeof *tokens))
-    abort ();
+  assert (toknum < sizeof tokens / sizeof *tokens);

   return tokens[toknum++];
 }
 
   return tokens[toknum++];
 }
 


@@ -1025,7 +992,6 @@ 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_BISON_CHECK([-o expect2.c expect2.y])

 AT_FULL_COMPILE([expect2])
 AT_PARSER_CHECK([./expect2], 1, [],
 [syntax error, unexpected '+', expecting A or B
 AT_FULL_COMPILE([expect2])
 AT_PARSER_CHECK([./expect2], 1, [],
 [syntax error, unexpected '+', expecting A or B


@@ -1063,7 +1029,7 @@ AT_DATA_GRAMMAR([input.y],
 start:
   {
     printf ("Bison would once convert this action to a midrule because of the"
 start:
   {
     printf ("Bison would once convert this action to a midrule because of the"

-           " subsequent braced code.\n");
+            " subsequent braced code.\n");

   }
   ;
 
   }
   ;
 


@@ -1071,13 +1037,8 @@ start:
 %printer { fprintf (yyoutput, "PRINTER"); } 'a';
 
 %%
 %printer { fprintf (yyoutput, "PRINTER"); } 'a';
 
 %%

-

 ]AT_YYERROR_DEFINE[
 ]AT_YYERROR_DEFINE[

-static int
-yylex (void)
-{
-  return 'a';
-}
+]AT_YYLEX_DEFINE(["a"])[

 
 int
 main (void)
 
 int
 main (void)


@@ -1210,13 +1171,7 @@ sr_conflict:
 %%
 
 ]AT_YYERROR_DEFINE[
 %%
 
 ]AT_YYERROR_DEFINE[

-int
-yylex (void)
-{
-  static int const input[] = { 1, 2, 3, 0 };
-  static int const *inputp = input;
-  return *inputp++;
-}
+]AT_YYLEX_DEFINE([{ 1, 2, 3, 0 }])[

 
 int
 main (void)
 
 int
 main (void)


@@ -1227,8 +1182,8 @@ main (void)
 AT_BISON_OPTION_POPDEFS
 
 AT_BISON_CHECK([[-o input.c input.y]], [[0]],,
 AT_BISON_OPTION_POPDEFS
 
 AT_BISON_CHECK([[-o input.c input.y]], [[0]],,

-[[input.y:23.5-19: warning: rule useless in parser due to conflicts: start: start
-input.y:27.5-19: warning: rule useless in parser due to conflicts: sr_conflict: TK2 "tok alias"
+[[input.y:23.5-19: warning: rule useless in parser due to conflicts: start: start [-Wother]
+input.y:27.5-19: warning: rule useless in parser due to conflicts: sr_conflict: TK2 "tok alias" [-Wother]

 ]])
 AT_COMPILE([[input]])
 AT_PARSER_CHECK([[./input]])
 ]])
 AT_COMPILE([[input]])
 AT_PARSER_CHECK([[./input]])


@@ -1246,8 +1201,9 @@ AT_CLEANUP
 
 AT_SETUP([[parse-gram.y: LALR = IELR]])
 
 
 AT_SETUP([[parse-gram.y: LALR = IELR]])
 

-# Avoid differences in synclines by telling bison that the output files
-# have the same name.
+# Avoid tests/bison's dark magic by processing a local copy of the
+# grammar.  Avoid differences in synclines by telling bison that the
+# output files have the same name.

 [cp $abs_top_srcdir/src/parse-gram.y input.y]
 AT_BISON_CHECK([[-o input.c -Dlr.type=lalr input.y]])
 [mv input.c lalr.c]
 [cp $abs_top_srcdir/src/parse-gram.y input.y]
 AT_BISON_CHECK([[-o input.c -Dlr.type=lalr input.y]])
 [mv input.c lalr.c]


@@ -1261,11 +1217,11 @@ AT_CLEANUP
 
 
 
 
 
 

-## --------------------------------------- ##
-## %error-verbose and YYSTACK_USE_ALLOCA.  ##
-## --------------------------------------- ##
+## -------------------------------------------- ##
+## parse.error=verbose and YYSTACK_USE_ALLOCA.  ##
+## -------------------------------------------- ##

 
 

-AT_SETUP([[%error-verbose and YYSTACK_USE_ALLOCA]])
+AT_SETUP([[parse.error=verbose and YYSTACK_USE_ALLOCA]])

 
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],
 
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],


@@ -1276,7 +1232,7 @@ AT_DATA_GRAMMAR([input.y],
   #define YYSTACK_USE_ALLOCA 1
 }
 
   #define YYSTACK_USE_ALLOCA 1
 }
 

-%error-verbose
+%define parse.error verbose

 
 %%
 
 
 %%
 


@@ -1309,10 +1265,10 @@ syntax_error:
 %%
 
 ]AT_YYERROR_DEFINE[
 %%
 
 ]AT_YYERROR_DEFINE[

-/* Induce two syntax error messages (which requires full error
-   recovery by shifting 3 tokens) in order to detect any loss of the
-   reallocated buffer.  */
-]AT_YYLEX_DEFINE([abc])[
+  /* Induce two syntax error messages (which requires full error
+     recovery by shifting 3 tokens) in order to detect any loss of the
+     reallocated buffer.  */
+]AT_YYLEX_DEFINE(["abc"])[

 int
 main (void)
 {
 int
 main (void)
 {


@@ -1332,9 +1288,9 @@ AT_CLEANUP
 
 
 
 
 
 

-## ------------------------- ##
-## %error-verbose overflow.  ##
-## ------------------------- ##
+## ------------------------------ ##
+## parse.error=verbose overflow.  ##
+## ------------------------------ ##

 
 # Imagine the case where YYSTACK_ALLOC_MAXIMUM = YYSIZE_MAXIMUM and an
 # invocation of yysyntax_error has caused yymsg_alloc to grow to exactly
 
 # Imagine the case where YYSTACK_ALLOC_MAXIMUM = YYSIZE_MAXIMUM and an
 # invocation of yysyntax_error has caused yymsg_alloc to grow to exactly


@@ -1344,7 +1300,8 @@ AT_CLEANUP
 # size calculation would return YYSIZE_MAXIMUM to yyparse.  Then,
 # yyparse would invoke yyerror using the old contents of yymsg.
 
 # size calculation would return YYSIZE_MAXIMUM to yyparse.  Then,
 # yyparse would invoke yyerror using the old contents of yymsg.
 

-AT_SETUP([[%error-verbose overflow]])
+AT_SETUP([[parse.error=verbose overflow]])
+

 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],
 [[%code {
 AT_BISON_OPTION_PUSHDEFS
 AT_DATA_GRAMMAR([input.y],
 [[%code {


@@ -1369,7 +1326,7 @@ AT_DATA_GRAMMAR([input.y],
   #define YYMAXDEPTH 100
 }
 
   #define YYMAXDEPTH 100
 }
 

-%error-verbose
+%define parse.error verbose

 
 %%
 
 
 %%
 


@@ -1417,9 +1374,9 @@ syntax_error2:
 %%
 
 ]AT_YYERROR_DEFINE[
 %%
 
 ]AT_YYERROR_DEFINE[

-/* Induce two syntax error messages (which requires full error
-   recovery by shifting 3 tokens).  */
-]AT_YYLEX_DEFINE([abc])[
+  /* Induce two syntax error messages (which requires full error
+     recovery by shifting 3 tokens).  */
+]AT_YYLEX_DEFINE(["abc"])[

 int
 main (void)
 {
 int
 main (void)
 {


@@ -1468,7 +1425,7 @@ AT_DATA_GRAMMAR([input.y],
 }
 
 ]$1[
 }
 
 ]$1[

-%error-verbose
+%define parse.error verbose

 %token 'c'
 
 %%
 %token 'c'
 
 %%


@@ -1504,7 +1461,7 @@ main (void)
 AT_BISON_CHECK([[-Dparse.lac=full -Dparse.lac.es-capacity-initial=1 \
                  -Dparse.lac.memory-trace=full \
                  -t -o input.c input.y]], [[0]], [],
 AT_BISON_CHECK([[-Dparse.lac=full -Dparse.lac.es-capacity-initial=1 \
                  -Dparse.lac.memory-trace=full \
                  -t -o input.c input.y]], [[0]], [],

-[[input.y: conflicts: 21 shift/reduce
+[[input.y: warning: 21 shift/reduce conflicts [-Wconflicts-sr]

 ]])
 AT_COMPILE([[input]])
 AT_PARSER_CHECK([[./input > stdout.txt 2> stderr.txt]], [[1]])
 ]])
 AT_COMPILE([[input]])
 AT_PARSER_CHECK([[./input > stdout.txt 2> stderr.txt]], [[1]])


@@ -1517,17 +1474,17 @@ AT_CHECK([[grep 'syntax error,' stderr.txt]], [[0]],
 
 # Check number of default reductions in inconsistent states to be sure
 # syntax error is detected before unnecessary reductions are performed.
 
 # Check number of default reductions in inconsistent states to be sure
 # syntax error is detected before unnecessary reductions are performed.

-AT_CHECK([[perl -0777 -ne 'print s/inconsistent default reduction//g;' \
+AT_CHECK([[$PERL -0777 -ne 'print s/inconsistent default reduction//g;' \

            < stdout.txt || exit 77]], [[0]], [[14]])
 
 # Check number of default reductions in consistent states to be sure
 # it is performed before the syntax error is detected.
            < stdout.txt || exit 77]], [[0]], [[14]])
 
 # Check number of default reductions in consistent states to be sure
 # it is performed before the syntax error is detected.

-AT_CHECK([[perl -0777 -ne 'print s/\bconsistent default reduction//g;' \
+AT_CHECK([[$PERL -0777 -ne 'print s/\bconsistent default reduction//g;' \

            < stdout.txt || exit 77]], [[0]], [[2]])
 
 # Check number of reallocs to be sure reallocated memory isn't somehow
 # lost between LAC invocations.
            < stdout.txt || exit 77]], [[0]], [[2]])
 
 # Check number of reallocs to be sure reallocated memory isn't somehow
 # lost between LAC invocations.

-AT_CHECK([[perl -0777 -ne 'print s/\(realloc//g;' < stderr.txt \
+AT_CHECK([[$PERL -0777 -ne 'print s/\(realloc//g;' < stderr.txt \

            || exit 77]], [[0]], [[3]])
 
 AT_BISON_OPTION_POPDEFS
            || exit 77]], [[0]], [[3]])
 
 AT_BISON_OPTION_POPDEFS


@@ -1569,7 +1526,7 @@ A: /*empty*/ | 'a' ;
 
 %%
 ]AT_YYERROR_DEFINE[
 
 %%
 ]AT_YYERROR_DEFINE[

-]AT_YYLEX_DEFINE([$1])[
+]AT_YYLEX_DEFINE(["$1"])[

 int
 main (void)
 {
 int
 main (void)
 {


@@ -1580,7 +1537,7 @@ main (void)
 
 AT_BISON_CHECK([[-Dparse.lac=full -Dparse.lac.es-capacity-initial=1 \
                  -t -o input.c input.y]], [[0]], [],
 
 AT_BISON_CHECK([[-Dparse.lac=full -Dparse.lac.es-capacity-initial=1 \
                  -t -o input.c input.y]], [[0]], [],

-[[input.y: conflicts: 8 shift/reduce
+[[input.y: warning: 8 shift/reduce conflicts [-Wconflicts-sr]

 ]])
 AT_COMPILE([[input]])
 AT_BISON_OPTION_POPDEFS
 ]])
 AT_COMPILE([[input]])
 AT_BISON_OPTION_POPDEFS


@@ -1619,3 +1576,79 @@ Stack now 0
 m4_popdef([AT_LAC_CHECK])
 
 AT_CLEANUP
 m4_popdef([AT_LAC_CHECK])
 
 AT_CLEANUP

+
+
+## ---------------------- ##
+## Lex and parse params.  ##
+## ---------------------- ##
+
+# AT_TEST(SKELETON)
+# -----------------
+# Check that the identifier of the params is properly fetched
+# even when there are trailing blanks.
+
+m4_pushdef([AT_TEST],
+[AT_SETUP([[Lex and parse params: $1]])
+
+AT_BISON_OPTION_PUSHDEFS([%locations %skeleton "$1" %parse-param { int x } %parse-param { int y }])
+
+## FIXME: Improve parsing of parse-param and use the generated
+## yyerror.
+AT_DATA_GRAMMAR([input.y],
+[[%defines
+%locations
+%skeleton "$1"
+%union { int ival; }
+%parse-param { int x }
+// Spaces, tabs, and new lines.
+%parse-param { @&t@
+        int y   @&t@
+         @&t@
+ @&t@
+}
+
+%{
+#include <stdio.h>
+#include <stdlib.h>
+
+  ]AT_YYERROR_DECLARE[
+  ]AT_YYLEX_DECLARE[
+%}
+
+%%
+exp: 'a' { fprintf (stdout, "x: %d, y: %d\n", x, y); };
+%%
+]AT_YYERROR_DEFINE[
+]AT_YYLEX_DEFINE(["a"])[
+
+]AT_SKEL_CC_IF(
+[int
+yyparse (int x, int y)
+{
+  yy::parser parser(x, y);
+  return parser.parse ();
+}
+])[
+
+int
+main (void)
+{
+  return !!yyparse(1, 2);
+}
+]])
+
+AT_FULL_COMPILE([input])
+AT_CHECK([./input], 0, [[x: 1, y: 2
+]])
+AT_BISON_OPTION_POPDEFS
+
+AT_CLEANUP
+])
+
+## FIXME: test Java, and iterate over skeletons.
+AT_TEST([yacc.c])
+AT_TEST([glr.c])
+AT_TEST([lalr1.cc])
+AT_TEST([glr.cc])
+
+m4_popdef([AT_TEST])