binutils/arparse.y

   1 %{
   2 /* arparse.y - Strange script language parser */
   3
   4 /* Copyright (C) 1992-2020 Free Software Foundation, Inc.
   5
   6    This file is part of GNU Binutils.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22
  23
  24 /* Contributed by Steve Chamberlain
  25                   sac@cygnus.com
  26
  27 */
  28 #define DONTDECLARE_MALLOC
  29 #include "sysdep.h"
  30 #include "bfd.h"
  31 #include "arsup.h"
  32 extern int verbose;
  33 extern int yylex (void);
  34 static int yyerror (const char *);
  35 %}
  36
  37 %union {
  38   char *name;
  39 struct list *list ;
  40
  41 };
  42
  43 %token NEWLINE
  44 %token VERBOSE
  45 %token <name> FILENAME
  46 %token ADDLIB
  47 %token LIST
  48 %token ADDMOD
  49 %token CLEAR
  50 %token CREATE
  51 %token DELETE
  52 %token DIRECTORY
  53 %token END
  54 %token EXTRACT
  55 %token FULLDIR
  56 %token HELP
  57 %token QUIT
  58 %token REPLACE
  59 %token SAVE
  60 %token OPEN
  61
  62 %type <list> modulelist
  63 %type <list> modulename
  64 %type <name> optional_filename
  65 %%
  66
  67 start:
  68         { prompt(); } session
  69         ;
  70
  71 session:
  72             session command_line
  73         |
  74         ;
  75
  76 command_line:
  77                 command NEWLINE { prompt(); }
  78         ;
  79
  80 command:
  81                 open_command
  82         |       create_command
  83         |       verbose_command
  84         |       directory_command
  85         |       addlib_command
  86         |       clear_command
  87         |       addmod_command
  88         |       save_command
  89         |       extract_command
  90         |       replace_command
  91         |       delete_command
  92         |       list_command
  93         |       END      { ar_end(); return 0; }
  94         |       error
  95         |       FILENAME { yyerror("foo"); }
  96         |
  97         ;
  98
  99
 100 extract_command:
 101                 EXTRACT modulename
 102                 { ar_extract($2); }
 103         ;
 104
 105 replace_command:
 106                 REPLACE modulename
 107                 { ar_replace($2); }
 108         ;
 109
 110 clear_command:
 111                 CLEAR
 112                 { ar_clear(); }
 113         ;
 114
 115 delete_command:
 116                 DELETE modulename
 117                 { ar_delete($2); }
 118         ;
 119 addmod_command:
 120         ADDMOD modulename
 121                 { ar_addmod($2); }
 122         ;
 123
 124 list_command:
 125                 LIST
 126                 { ar_list(); }
 127         ;
 128
 129 save_command:
 130                 SAVE
 131                 { ar_save(); }
 132         ;
 133
 134
 135
 136 open_command:
 137                 OPEN FILENAME
 138                 { ar_open($2,0); }
 139         ;
 140
 141 create_command:
 142                 CREATE FILENAME
 143                 { ar_open($2,1); }
 144         ;
 145
 146
 147 addlib_command:
 148                 ADDLIB FILENAME modulelist
 149                 { ar_addlib($2,$3); }
 150         ;
 151 directory_command:
 152                 DIRECTORY FILENAME modulelist optional_filename
 153                 { ar_directory($2, $3, $4); }
 154         ;
 155
 156
 157
 158 optional_filename:
 159                 FILENAME
 160                 { $$ = $1; }
 161         |       { $$ = 0; }
 162         ;
 163
 164 modulelist:
 165         '(' modulename ')'
 166                 { $$ = $2; }
 167         |
 168                 { $$ = 0; }
 169         ;
 170
 171 modulename:
 172                 modulename optcomma FILENAME
 173                 {       struct list *n  = (struct list *) malloc(sizeof(struct list));
 174                         n->next = $1;
 175                         n->name = $3;
 176                         $$ = n;
 177                  }
 178         |       { $$ = 0; }
 179         ;
 180
 181
 182 optcomma:
 183                 ','
 184         |
 185         ;
 186
 187
 188 verbose_command:
 189         VERBOSE
 190                 { verbose = !verbose; }
 191         ;
 192
 193
 194 %%
 195
 196 static int
 197 yyerror (const char *x ATTRIBUTE_UNUSED)
 198 {
 199   extern int linenumber;
 200
 201   printf (_("Syntax error in archive script, line %d\n"), linenumber + 1);
 202   return 0;
 203 }