src/options.h

   1 /* Concentrate all options use in bison,
   2    Copyright 2001 Free Software Foundation, Inc.
   3
   4    This file is part of Bison, the GNU Compiler Compiler.
   5
   6    Bison is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 2, or (at your option)
   9    any later version.
  10
  11    Bison is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with Bison; see the file COPYING.  If not, write to
  18    the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19    Boston, MA 02111-1307, USA.  */
  20
  21 #ifndef OPTIONS_H_
  22 # define OPTIONS_H_
  23
  24 /* opt_access_t and struct option_table_struct need to be declare
  25    here, for the parse_percent_token function in lex.c.  */
  26
  27 /* Option accessibility.  */
  28 typedef enum opt_access_e
  29 {
  30   opt_cmd_line = 1,
  31   opt_percent,
  32   opt_both
  33 } opt_access_t;
  34
  35 /* This is the general struct, which contains user's options from
  36    command line or in grammar with percent flag.  */
  37 struct option_table_struct
  38 {
  39   /* Set the accessibility.  */
  40   opt_access_t access;
  41   /* This name is used for long option et percent directives.  */
  42   const char *name;
  43   /* Use for command line.  */
  44   int has_arg;
  45   /* A set_flag value causes the named flag to be set.  */
  46   int *set_flag;
  47   /* A retval action returns the code.  */
  48   int ret_val;
  49   /* The short option value, frequently a letter.  */
  50   int val;
  51 };
  52
  53 extern const char *shortopts;
  54 extern struct option *longopts;
  55
  56 /* Table which contain all options.  */
  57 extern const struct option_table_struct option_table[];
  58
  59 /* Set the longopts variable from option_table.  */
  60 void create_long_option_table PARAMS (());
  61
  62 #endif /* !OPTIONS_H_ */