tests/input.at

   1 # Checking the output filenames.                    -*- Autotest -*-
   2 # Copyright (C) 2002 Free Software Foundation, Inc.
   3
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  17 # 02111-1307, USA.
  18
  19 AT_BANNER([[Input Processing.]])
  20
  21 # Mostly test that we are robust to mistakes.
  22
  23
  24 ## ------------ ##
  25 ## Invalid $n.  ##
  26 ## ------------ ##
  27
  28 AT_SETUP([Invalid $n])
  29
  30 AT_DATA([input.y],
  31 [[%%
  32 exp: { $$ = $1 ; };
  33 ]])
  34
  35 AT_CHECK([bison input.y], [1], [],
  36 [[input.y:2.6-14: invalid value: `$1'
  37 ]])
  38
  39 AT_CLEANUP
  40
  41
  42 ## ------------ ##
  43 ## Invalid @n.  ##
  44 ## ------------ ##
  45
  46 AT_SETUP([Invalid @n])
  47
  48 AT_DATA([input.y],
  49 [[%%
  50 exp: { @$ = @1 ; };
  51 ]])
  52
  53 AT_CHECK([bison input.y], [1], [],
  54 [[input.y:2.6-14: invalid value: `@1'
  55 ]])
  56
  57 AT_CLEANUP
  58
  59
  60 ## -------------- ##
  61 ## Type Clashes.  ##
  62 ## -------------- ##
  63
  64 AT_SETUP([Type Clashes])
  65
  66 AT_DATA([input.y],
  67 [[%token foo
  68 %type <bar> exp
  69 %%
  70 exp: foo {} foo
  71    | foo
  72    | /* Empty. */
  73    ;
  74 ]])
  75
  76 AT_CHECK([bison input.y], [1], [],
  77 [[input.y:4.4-15: type clash on default action: <bar> != <>
  78 input.y:5.4-8: type clash on default action: <bar> != <>
  79 input.y:6.4: empty rule for typed nonterminal, and no action
  80 ]])
  81
  82 AT_CLEANUP
  83
  84
  85
  86 ## ----------------------- ##
  87 ## Torturing the Scanner.  ##
  88 ## ----------------------- ##
  89
  90 # Be sure to compile and run, so that the C compiler checks what
  91 # we do.
  92
  93 AT_SETUP([Torturing the Scanner])
  94
  95 AT_DATA([input.y],
  96 [[%{
  97 /* This is seen in GCC: a %{ and %} in middle of a comment. */
  98 const char *foo = "So %{ and %} can be here too.";
  99
 100 #ifdef __STDC__
 101 /\
 102 * A comment with backslash-newlines in it. %{ %} *\
 103 \
 104 /
 105
 106 char str[] = "\\
 107 " A string with backslash-newlines in it %{ %} \\
 108 "";
 109
 110 char apostrophe = '\\
 111 \
 112 '\
 113 ';
 114 #endif
 115
 116 #include <stdio.h>
 117 %}
 118 /* %{ and %} can be here too. */
 119
 120 %{
 121 /* Exercise pre-prologue dependency to %union.  */
 122 typedef int value_t;
 123 %}
 124
 125 /* Exercise M4 quoting: '@:>@@:>@', 0.  */
 126
 127 /* Also exercise %union. */
 128 %union
 129 {
 130   value_t ival; /* A comment to exercise an old bug. */
 131 };
 132
 133
 134 /* Exercise post-prologue dependency to %union.  */
 135 %{
 136 static YYSTYPE value_t_as_yystype (value_t val);
 137
 138 /* Exercise quotes in declarations.  */
 139 char quote[] = "@:>@@:>@,";
 140 %}
 141
 142 %{
 143 static void yyerror (const char *s);
 144 static int yylex (void);
 145 %}
 146
 147 %type <ival> '@<:@'
 148
 149 /* Exercise quotes in strings.  */
 150 %token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x0\0"
 151
 152 %%
 153 /* Exercise M4 quoting: '@:>@@:>@', @<:@, 1.  */
 154 exp: '@<:@' '\1' '\x000000000000000000000000000000000000000000000000002'
 155   {
 156     /* Exercise quotes in braces.  */
 157     char tmp[] = "@<:@%c@:>@,\n";
 158     printf (tmp, $1);
 159   }
 160 ;
 161 %%
 162 /* Exercise M4 quoting: '@:>@@:>@', @<:@, 2.  */
 163
 164 static YYSTYPE
 165 value_t_as_yystype (value_t val)
 166 {
 167   YYSTYPE res;
 168   res.ival = val;
 169   return res;
 170 }
 171
 172 static int
 173 yylex (void)
 174 {
 175   static const char *input = "@<:@\1\2";
 176   yylval = value_t_as_yystype (*input);
 177   return *input++;
 178 }
 179
 180 static void
 181 yyerror (const char *msg)
 182 {
 183   fprintf (stderr, "%s\n", msg);
 184 }
 185 ]])
 186
 187 AT_DATA([main.c],
 188 [[typedef int value_t;
 189 #include "input.h"
 190
 191 int yyparse (void);
 192
 193 int
 194 main (void)
 195 {
 196   return yyparse ();
 197 }
 198 ]])
 199
 200 AT_CHECK([bison -d -v -o input.c input.y])
 201 AT_COMPILE([input], [input.c main.c])
 202 AT_PARSER_CHECK([./input], 0,
 203 [[[@<:@],
 204 ]])
 205
 206 AT_CLEANUP