X-Git-Url: https://git.saurik.com/bison.git/blobdiff_plain/7d596384905f92f64573bd2d1378ae9041daa1fd..c932d6135ca3e508f7136810b9b0bf79725290b9:/tests/calc.at

diff --git a/tests/calc.at b/tests/calc.at
index cd37de18..46b798f5 100644
--- a/tests/calc.at
+++ b/tests/calc.at
@@ -1,22 +1,19 @@
 # Simple calculator.                         -*- Autotest -*-
 
-# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
-# Foundation, Inc.
+# Copyright (C) 2000-2012 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., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 ## ---------------------------------------------------- ##
 ## Compile the grammar described in the documentation.  ##
@@ -30,21 +27,186 @@
 
 # _AT_DATA_CALC_Y($1, $2, $3, [BISON-DIRECTIVES])
 # -----------------------------------------------
-# Produce `calc.y'.  Don't call this macro directly, because it contains
-# some occurrences of `$1' etc. which will be interpreted by m4.  So
-# you should call it with $1, $2, and $3 as arguments, which is what
-# AT_DATA_CALC_Y does.
+# Produce `calc.y' and, if %defines was specified, `calc-lex.c' or
+# `calc-lex.cc'.
+#
+# Don't call this macro directly, because it contains some occurrences
+# of `$1' etc. which will be interpreted by m4.  So you should call it
+# with $1, $2, and $3 as arguments, which is what AT_DATA_CALC_Y does.
 m4_define([_AT_DATA_CALC_Y],
 [m4_if([$1$2$3], $[1]$[2]$[3], [],
        [m4_fatal([$0: Invalid arguments: $@])])dnl
+m4_pushdef([AT_CALC_LEX],
+[[#include <ctype.h>
+
+int ]AT_NAME_PREFIX[lex (]AT_LEX_FORMALS[);
+static int get_char (]AT_LEX_FORMALS[);
+static void unget_char (]AT_LEX_PRE_FORMALS[ int c);
+
+]AT_LOCATION_IF([
+static YYLTYPE last_yylloc;
+])[
+static int
+get_char (]AT_LEX_FORMALS[)
+{
+  int res = getc (input);
+  ]AT_USE_LEX_ARGS[;
+]AT_LOCATION_IF([
+  last_yylloc = AT_LOC;
+  if (res == '\n')
+    {
+      AT_LOC_LAST_LINE++;
+      AT_LOC_LAST_COLUMN = 1;
+    }
+  else
+    AT_LOC_LAST_COLUMN++;
+])[
+  return res;
+}
+
+static void
+unget_char (]AT_LEX_PRE_FORMALS[ int c)
+{
+  ]AT_USE_LEX_ARGS[;
+]AT_LOCATION_IF([
+  /* Wrong when C == `\n'. */
+  AT_LOC = last_yylloc;
+])[
+  ungetc (c, input);
+}
+
+static int
+read_signed_integer (]AT_LEX_FORMALS[)
+{
+  int c = get_char (]AT_LEX_ARGS[);
+  int sign = 1;
+  int n = 0;
+
+  ]AT_USE_LEX_ARGS[;
+  if (c == '-')
+    {
+      c = get_char (]AT_LEX_ARGS[);
+      sign = -1;
+    }
+
+  while (isdigit (c))
+    {
+      n = 10 * n + (c - '0');
+      c = get_char (]AT_LEX_ARGS[);
+    }
+
+  unget_char (]AT_LEX_PRE_ARGS[ c);
+
+  return sign * n;
+}
+
+
+/*---------------------------------------------------------------.
+| Lexical analyzer returns an integer on the stack and the token |
+| NUM, or the ASCII character read if not a number.  Skips all   |
+| blanks and tabs, returns 0 for EOF.                            |
+`---------------------------------------------------------------*/
+
+int
+]AT_NAME_PREFIX[lex (]AT_LEX_FORMALS[)
+{
+  static int init = 1;
+  int c;
+
+  if (init)
+    {
+      init = 0;
+]AT_LOCATION_IF([
+      AT_LOC_LAST_COLUMN = 1;
+      AT_LOC_LAST_LINE = 1;
+])[
+    }
+
+  /* Skip current token, then white spaces.  */
+  do
+    {
+]AT_LOCATION_IF(
+[     AT_LOC_FIRST_COLUMN = AT_LOC_LAST_COLUMN;
+      AT_LOC_FIRST_LINE   = AT_LOC_LAST_LINE;
+])[
+    }
+  while ((c = get_char (]AT_LEX_ARGS[)) == ' ' || c == '\t');
+
+  /* process numbers   */
+  if (c == '.' || isdigit (c))
+    {
+      unget_char (]AT_LEX_PRE_ARGS[ c);
+      ]AT_VAL[.ival = read_signed_integer (]AT_LEX_ARGS[);
+      return NUM;
+    }
+
+  /* Return end-of-file.  */
+  if (c == EOF)
+    return CALC_EOF;
+
+  /* Return single chars. */
+  return c;
+}
+]])
+
 AT_DATA_GRAMMAR([calc.y],
 [[/* Infix notation calculator--calc */
 ]$4
 AT_SKEL_CC_IF(
-[%define "global_tokens_and_yystype"])[
-%{
+[%define global_tokens_and_yystype])[
+%code requires
+{
+]AT_LOCATION_TYPE_IF([[
+# include <iostream>
+  struct Point
+  {
+    int l;
+    int c;
+  };
+
+  struct Span
+  {
+    Point first;
+    Point last;
+  };
+
+# define YYLLOC_DEFAULT(Current, Rhs, N)                                \
+  do                                                                    \
+    if (N)                                                              \
+      {                                                                 \
+        (Current).first = YYRHSLOC (Rhs, 1).first;                      \
+        (Current).last  = YYRHSLOC (Rhs, N).last;                       \
+      }                                                                 \
+    else                                                                \
+      {                                                                 \
+        (Current).first = (Current).last = YYRHSLOC (Rhs, 0).last;      \
+      }                                                                 \
+  while (false)
+
+]])[
+  /* Exercise pre-prologue dependency to %union.  */
+  typedef int semantic_value;
+}
+
+/* Exercise %union. */
+%union
+{
+  semantic_value ival;
+};
+
+%code provides
+{
 #include <stdio.h>
+/* The input.  */
+extern FILE *input;]AT_SKEL_CC_IF([[
+#ifndef YYLTYPE
+# define YYLTYPE ]AT_NAME_PREFIX[::parser::location_type
+#endif
+]])[
+}
 
+%code
+{
 #include <stdlib.h>
 #include <string.h>
 #if HAVE_UNISTD_H
@@ -53,33 +215,14 @@ AT_SKEL_CC_IF(
 # undef alarm
 # define alarm(seconds) /* empty */
 #endif
-#include <ctype.h>
 #define USE(Var)
 
-/* Exercise pre-prologue dependency to %union.  */
-typedef int semantic_value;
-
+FILE *input;
 static semantic_value global_result = 0;
 static int global_count = 0;
-%}
-
-/* Exercise %union. */
-%union
-{
-  semantic_value ival;
-};
-
-%{
 static int power (int base, int exponent);
-]AT_SKEL_CC_IF(
-[#ifndef YYLTYPE
-[#] define YYLTYPE AT_NAME_PREFIX::location
-#endif
-#define first_line   begin.line
-#define first_column begin.column
-#define last_line    end.line
-#define last_column  end.column
-],
+
+]AT_SKEL_CC_IF(,
 [/* yyerror receives the location if:
    - %location & %pure & %glr
    - %location & %pure & %yacc & %parse-param. */
@@ -87,13 +230,11 @@ static void yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
                      AT_PARAM_IF([semantic_value *result, int *count, ])
                      const char *s
                      );])[
-static int yylex (]AT_LEX_FORMALS[);
-static int get_char (]AT_LEX_FORMALS[);
-static void unget_char (]AT_LEX_PRE_FORMALS[ int c);
-%}
+int yylex (]AT_LEX_FORMALS[);
+}
 
-]AT_SKEL_CC_IF(
-[/* The lalr1.cc skeleton, for backward compatibility, defines
+]AT_SKEL_CC_IF([AT_LOCATION_TYPE_IF([], [
+/* The lalr1.cc skeleton, for backward compatibility, defines
    a constructor for position that initializes the filename.  The
    glr.cc skeleton does not (and in fact cannot: location/position
    are stored in a union, from which objects with constructors are
@@ -101,7 +242,7 @@ static void unget_char (]AT_LEX_PRE_FORMALS[ int c);
 %initial-action {
   @$.initialize (0);
 }
-])[
+])])[
 
 /* Bison Declarations */
 %token CALC_EOF 0 "end of input"
@@ -141,23 +282,35 @@ exp:
 | '-' exp  %prec NEG { $$ = -$2;            }
 | exp '^' exp        { $$ = power ($1, $3); }
 | '(' exp ')'        { $$ = $2;             }
-| '(' error ')'      { $$ = 1111;           }
+| '(' error ')'      { $$ = 1111; yyerrok;  }
 | '!'                { $$ = 0; YYERROR;     }
 | '-' error          { $$ = 0; YYERROR;     }
 ;
 %%
-/* The input.  */
-static FILE *input;
 
 ]AT_SKEL_CC_IF(
-[/* A C++ error reporting function.  */
+[AT_LOCATION_TYPE_IF([[
+  std::ostream&
+  operator<< (std::ostream& o, const Span& s)
+  {
+    o << s.first.l << '.' << s.first.c;
+    if (s.first.l != s.last.l)
+      o << '-' << s.last.l << '.' << s.last.c - 1;
+    else if (s.first.c != s.last.c - 1)
+      o << '-' << s.last.c - 1;
+    return o;
+  }
+]])
+
+/* A C++ error reporting function.  */
 void
-AT_NAME_PREFIX::parser::error (const location& l, const std::string& m)
+AT_NAME_PREFIX::parser::error (const location_type& l, const std::string& m)
 {
   (void) l;
   std::cerr << AT_LOCATION_IF([l << ": " << ])m << std::endl;
 }
 
+/* A C++ yyparse that simulates the C signature.  */
 int
 yyparse (AT_PARAM_IF([semantic_value *result, int *count]))
 {
@@ -168,7 +321,8 @@ yyparse (AT_PARAM_IF([semantic_value *result, int *count]))
   return parser.parse ();
 }
 ],
-[static void
+[/* A C error reporting function.  */
+static void
 yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
          AT_PARAM_IF([semantic_value *result, int *count, ])
          const char *s)
@@ -176,128 +330,18 @@ yyerror (AT_YYERROR_ARG_LOC_IF([YYLTYPE *llocp, ])
 AT_PARAM_IF([(void) result; (void) count;])
 AT_YYERROR_SEES_LOC_IF([
   fprintf (stderr, "%d.%d",
-           AT_LOC.first_line, AT_LOC.first_column);
-  if (AT_LOC.first_line != AT_LOC.last_line)
+           AT_LOC_FIRST_LINE, AT_LOC_FIRST_COLUMN);
+  if (AT_LOC_FIRST_LINE != AT_LOC_LAST_LINE)
     fprintf (stderr, "-%d.%d",
-	     AT_LOC.last_line,  AT_LOC.last_column - 1);
-  else if (AT_LOC.first_column != AT_LOC.last_column - 1)
+	     AT_LOC_LAST_LINE,  AT_LOC_LAST_COLUMN - 1);
+  else if (AT_LOC_FIRST_COLUMN != AT_LOC_LAST_COLUMN - 1)
     fprintf (stderr, "-%d",
-	     AT_LOC.last_column - 1);
+	     AT_LOC_LAST_COLUMN - 1);
   fprintf (stderr, ": ");])
   fprintf (stderr, "%s\n", s);
 }])[
 
-
-]AT_LOCATION_IF([
-static YYLTYPE last_yylloc;
-])[
-static int
-get_char (]AT_LEX_FORMALS[)
-{
-  int res = getc (input);
-  ]AT_USE_LEX_ARGS[;
-]AT_LOCATION_IF([
-  last_yylloc = AT_LOC;
-  if (res == '\n')
-    {
-      AT_LOC.last_line++;
-      AT_LOC.last_column = 1;
-    }
-  else
-    AT_LOC.last_column++;
-])[
-  return res;
-}
-
-
-static void
-unget_char (]AT_LEX_PRE_FORMALS[ int c)
-{
-  ]AT_USE_LEX_ARGS[;
-]AT_LOCATION_IF([
-  /* Wrong when C == `\n'. */
-  AT_LOC = last_yylloc;
-])[
-  ungetc (c, input);
-}
-
-static int
-read_signed_integer (]AT_LEX_FORMALS[)
-{
-  int c = get_char (]AT_LEX_ARGS[);
-  int sign = 1;
-  int n = 0;
-
-  ]AT_USE_LEX_ARGS[;
-  if (c == '-')
-    {
-      c = get_char (]AT_LEX_ARGS[);
-      sign = -1;
-    }
-
-  while (isdigit (c))
-    {
-      n = 10 * n + (c - '0');
-      c = get_char (]AT_LEX_ARGS[);
-    }
-
-  unget_char (]AT_LEX_PRE_ARGS[ c);
-
-  return sign * n;
-}
-
-
-
-/*---------------------------------------------------------------.
-| Lexical analyzer returns an integer on the stack and the token |
-| NUM, or the ASCII character read if not a number.  Skips all   |
-| blanks and tabs, returns 0 for EOF.                            |
-`---------------------------------------------------------------*/
-
-static int
-yylex (]AT_LEX_FORMALS[)
-{
-  static int init = 1;
-  int c;
-
-  if (init)
-    {
-      init = 0;
-]AT_LOCATION_IF([
-      AT_LOC.last_column = 1;
-      AT_LOC.last_line = 1;
-])[
-    }
-
-]AT_LOCATION_IF([
- AT_LOC.first_column = AT_LOC.last_column;
-  AT_LOC.first_line   = AT_LOC.last_line;
-])[
-
-  /* Skip white space.  */
-  while ((c = get_char (]AT_LEX_ARGS[)) == ' ' || c == '\t')
-    {
-]AT_LOCATION_IF(
-[     AT_LOC.first_column = AT_LOC.last_column;
-      AT_LOC.first_line   = AT_LOC.last_line;
-])[
-    }
-
-  /* process numbers   */
-  if (c == '.' || isdigit (c))
-    {
-      unget_char (]AT_LEX_PRE_ARGS[ c);
-      ]AT_VAL[.ival = read_signed_integer (]AT_LEX_ARGS[);
-      return NUM;
-    }
-
-  /* Return end-of-file.  */
-  if (c == EOF)
-    return CALC_EOF;
-
-  /* Return single chars. */
-  return c;
-}
+]AT_DEFINES_IF(, [AT_CALC_LEX])[
 
 static int
 power (int base, int exponent)
@@ -311,6 +355,7 @@ power (int base, int exponent)
 }
 
 
+/* A C main function.  */
 int
 main (int argc, const char **argv)
 {
@@ -337,7 +382,8 @@ main (int argc, const char **argv)
 ]AT_SKEL_CC_IF([], [m4_bmatch([$4], [%debug],
 [  yydebug = 1;])])[
   status = yyparse (]AT_PARAM_IF([[&result, &count]])[);
-  fclose (input);
+  if (fclose (input))
+    perror ("fclose");
   if (global_result != result)
     abort ();
   if (global_count != count)
@@ -345,12 +391,18 @@ main (int argc, const char **argv)
   return status;
 }
 ]])
+AT_DEFINES_IF([AT_DATA_SOURCE([[calc-lex.c]AT_SKEL_CC_IF([[c]])],
+[[#include "calc.h]AT_SKEL_CC_IF([[h]])["
+
+]AT_CALC_LEX])])
+m4_popdef([AT_CALC_LEX])
 ])# _AT_DATA_CALC_Y
 
 
 # AT_DATA_CALC_Y([BISON-OPTIONS])
 # -------------------------------
-# Produce `calc.y'.
+# Produce `calc.y' and, if %defines was specified, `calc-lex.c' or
+# `calc-lex.cc'.
 m4_define([AT_DATA_CALC_Y],
 [_AT_DATA_CALC_Y($[1], $[2], $[3], [$1])
 ])
@@ -455,12 +507,7 @@ m4_ifval([$2], [AT_CHECK([exit 77])])
 AT_BISON_OPTION_PUSHDEFS([$1])
 
 AT_DATA_CALC_Y([$1])
-
-AT_SKEL_CC_IF(
-  [AT_CHECK([bison -o calc.cc calc.y])
-   AT_COMPILE_CXX([calc])],
-  [AT_CHECK([bison -o calc.c calc.y])
-   AT_COMPILE([calc])])
+AT_FULL_COMPILE([calc], [AT_DEFINES_IF([[lex]])])
 
 # Test the priorities.
 _AT_CHECK_CALC([$1],
@@ -531,6 +578,14 @@ _AT_CHECK_CALC_ERROR([$1], [0], [(- *) + (0 0) = 1], [113],
 [1.4: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
 1.12: syntax error, unexpected number
 calc: error: 2222 != 1])
+
+# Check that yyerrok works properly: second error is not reported,
+# third and fourth are.  Parse status is succesfull.
+_AT_CHECK_CALC_ERROR([$1], [0], [(* *) + (*) + (*)], [113],
+[1.2: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.10: syntax error, unexpected '*', expecting number or '-' or '(' or '!'
+1.16: syntax error, unexpected '*', expecting number or '-' or '(' or '!'])
+
 AT_BISON_OPTION_POPDEFS
 
 AT_CLEANUP
@@ -556,13 +611,14 @@ AT_CHECK_CALC_LALR()
 
 AT_CHECK_CALC_LALR([%defines])
 AT_CHECK_CALC_LALR([%locations])
+
 AT_CHECK_CALC_LALR([%name-prefix="calc"]) dnl test deprecated `='
 AT_CHECK_CALC_LALR([%verbose])
 AT_CHECK_CALC_LALR([%yacc])
 AT_CHECK_CALC_LALR([%error-verbose])
 
-AT_CHECK_CALC_LALR([%pure-parser %locations])
-AT_CHECK_CALC_LALR([%push-pull-parser %pure-parser %locations])
+AT_CHECK_CALC_LALR([%define api.pure %locations])
+AT_CHECK_CALC_LALR([%define api.push-pull both %define api.pure %locations])
 AT_CHECK_CALC_LALR([%error-verbose %locations])
 
 AT_CHECK_CALC_LALR([%error-verbose %locations %defines %name-prefix "calc" %verbose %yacc])
@@ -570,10 +626,10 @@ AT_CHECK_CALC_LALR([%error-verbose %locations %defines %name-prefix "calc" %verb
 AT_CHECK_CALC_LALR([%debug])
 AT_CHECK_CALC_LALR([%error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc])
 
-AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc])
-AT_CHECK_CALC_LALR([%push-pull-parser %pure-parser %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc])
+AT_CHECK_CALC_LALR([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc])
+AT_CHECK_CALC_LALR([%define api.push-pull both %define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc])
 
-AT_CHECK_CALC_LALR([%pure-parser %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
+AT_CHECK_CALC_LALR([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
 
 
 # ----------------------- #
@@ -599,7 +655,7 @@ AT_CHECK_CALC_GLR([%verbose])
 AT_CHECK_CALC_GLR([%yacc])
 AT_CHECK_CALC_GLR([%error-verbose])
 
-AT_CHECK_CALC_GLR([%pure-parser %locations])
+AT_CHECK_CALC_GLR([%define api.pure %locations])
 AT_CHECK_CALC_GLR([%error-verbose %locations])
 
 AT_CHECK_CALC_GLR([%error-verbose %locations %defines %name-prefix "calc" %verbose %yacc])
@@ -607,9 +663,9 @@ AT_CHECK_CALC_GLR([%error-verbose %locations %defines %name-prefix "calc" %verbo
 AT_CHECK_CALC_GLR([%debug])
 AT_CHECK_CALC_GLR([%error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc])
 
-AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc])
+AT_CHECK_CALC_GLR([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc])
 
-AT_CHECK_CALC_GLR([%pure-parser %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
+AT_CHECK_CALC_GLR([%define api.pure %error-verbose %debug %locations %defines %name-prefix "calc" %verbose %yacc %parse-param {semantic_value *result} %parse-param {int *count}])
 
 
 # ----------------------------- #
@@ -629,8 +685,8 @@ m4_define([AT_CHECK_CALC_LALR1_CC],
 [AT_CHECK_CALC([%language "C++" %defines %locations] $@)])
 
 AT_CHECK_CALC_LALR1_CC([])
+AT_CHECK_CALC_LALR1_CC([%define location_type Span])
 AT_CHECK_CALC_LALR1_CC([%error-verbose %name-prefix "calc" %verbose %yacc])
-
 AT_CHECK_CALC_LALR1_CC([%error-verbose %debug %name-prefix "calc" %verbose %yacc])
 
 AT_CHECK_CALC_LALR1_CC([%pure-parser %error-verbose %debug %name-prefix "calc" %verbose %yacc])
@@ -656,6 +712,7 @@ m4_define([AT_CHECK_CALC_GLR_CC],
 [AT_CHECK_CALC([%language "C++" %glr-parser %defines %locations] $@)])
 
 AT_CHECK_CALC_GLR_CC([])
+AT_CHECK_CALC_GLR_CC([%define location_type Span])
 AT_CHECK_CALC_GLR_CC([%error-verbose %name-prefix "calc" %verbose %yacc])
 
 AT_CHECK_CALC_GLR_CC([%debug])