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: integer out of range: `$1'
  37 ]])
  38
  39 AT_CLEANUP
  40
  41
  42 ## ------------ ##
  43 ## Invalid @n.  ##
  44 ## ------------ ##
  45
  46 AT_SETUP([Invalid @n])
  47
  48 AT_DATA([input.y],
  49 [[%%
  50 exp: { @$ = @1 ; };
  51 ]])
  52
  53 AT_CHECK([bison input.y], [1], [],
  54 [[input.y:2.6-14: integer out of range: `@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 char str[] = "\\
 106 " A string with backslash-newlines in it %{ %} \\
 107 "";
 108
 109 char apostrophe = '\\
 110 '\
 111 ';
 112 #endif
 113
 114 #include <stdio.h>
 115 %}
 116 /* %{ and %} can be here too. */
 117
 118 %{
 119 /* Exercise pre-prologue dependency to %union.  */
 120 typedef int value_t;
 121 %}
 122
 123 /* Exercise M4 quoting: '@:>@@:>@', 0.  */
 124
 125 /* Also exercise %union. */
 126 %union
 127 {
 128   value_t ival; /* A comment to exercise an old bug. */
 129 };
 130
 131
 132 /* Exercise post-prologue dependency to %union.  */
 133 %{
 134 static YYSTYPE value_t_as_yystype (value_t val);
 135
 136 /* Exercise quotes in declarations.  */
 137 char quote[] = "@:>@@:>@,";
 138 %}
 139
 140 %{
 141 static void yyerror (const char *s);
 142 static int yylex (void);
 143 %}
 144
 145 %type <ival> '@<:@'
 146
 147 /* Exercise quotes in strings.  */
 148 %token FAKE "fake @<:@@:>@ \a\b\f\n\r\t\v\"\'\?\\\u005B\U0000005c ??!??'??(??)??-??/??<??=??> \x0\0"
 149
 150 %%
 151 /* Exercise M4 quoting: '@:>@@:>@', @<:@, 1.  */
 152 exp: '@<:@' '\1' two '$' '@' '{' oline output
 153   {
 154     /* Exercise quotes in braces.  */
 155     char tmp[] = "@<:@%c@:>@,\n";
 156     printf (tmp, $1);
 157   }
 158 ;
 159
 160 two: '\x000000000000000000000000000000000000000000000000000000000000000000002';
 161 oline: '@' 'o' 'l' 'i' 'n' 'e' '@' '_' '_' 'o' 'l' 'i' 'n' 'e' '_' '_';
 162 output: '#' 'o' 'u' 't' 'p' 'u' 't' ' ';
 163 %%
 164 /* Exercise M4 quoting: '@:>@@:>@', @<:@, 2.  */
 165
 166 static YYSTYPE
 167 value_t_as_yystype (value_t val)
 168 {
 169   YYSTYPE res;
 170   res.ival = val;
 171   return res;
 172 }
 173
 174 static int
 175 yylex (void)
 176 {
 177   static const char *input = "@<:@\1\2$@{@oline@__@&t@oline__\
 178 #output "; /* "
 179   */
 180   yylval = value_t_as_yystype (*input);
 181   return *input++;
 182 }
 183
 184 static void
 185 yyerror (const char *msg)
 186 {
 187   fprintf (stderr, "%s\n", msg);
 188 }
 189 ]])
 190
 191 AT_DATA([main.c],
 192 [[typedef int value_t;
 193 #include "input.h"
 194
 195 int yyparse (void);
 196
 197 int
 198 main (void)
 199 {
 200   return yyparse ();
 201 }
 202 ]])
 203
 204 AT_CHECK([bison -d -v -o input.c input.y])
 205 AT_COMPILE([input.o], [-c input.c])
 206 AT_COMPILE([main.o], [-c main.c])
 207 AT_COMPILE([input], [input.o main.o])
 208 AT_PARSER_CHECK([./input], 0,
 209 [[[@<:@],
 210 ]])
 211
 212 AT_CLEANUP