src/vmsgetargs.c

   1 /* VMS version of getargs; Uses DCL command parsing.
   2    Copyright 1989, 1992 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
  22 #include <ctype.h>
  23 #include <stdio.h>
  24 #include "files.h"
  25
  26 /*
  27  *      VMS version of getargs: Uses DCL command parsing
  28  *              (argc and argv are ignored)
  29  */
  30 int verbose_flag;
  31 int defines_flag;
  32 int debug_flag;
  33 int no_lines_flag;
  34 extern int no_parser_flag;
  35 extern int token_table_flag;
  36 extern int raw_flag;
  37 extern int yacc_flag;
  38 extern char * version_string;
  39
  40 /* Allocate storgate and initialize, since bison uses them elsewhere.  */
  41 char *spec_name_prefix;
  42 char *spec_file_prefix;
  43
  44 getargs(argc,argv)
  45      int argc;
  46      char *argv[];
  47 {
  48   register char *cp;
  49   static char Input_File[256];
  50   static char output_spec[256], name_prefix_spec[256], file_prefix_spec[256];
  51   extern char *infile;
  52
  53   verbose_flag = 0;
  54   defines_flag = 0;
  55   debug_flag = 0;
  56   yacc_flag = 0;
  57   no_lines_flag = 0;
  58   no_parser_flag = 0;
  59   token_table_flag = 0;
  60   raw_flag = 0;
  61   /*
  62    *    Check for /VERBOSE qualifier
  63    */
  64   if (cli_present("BISON$VERBOSE")) verbose_flag = 1;
  65   /*
  66    *    Check for /DEFINES qualifier
  67    */
  68   if (cli_present("BISON$DEFINES")) defines_flag = 1;
  69   /*
  70    *    Check for /FIXED_OUTFILES qualifier
  71    */
  72   if (cli_present("BISON$FIXED_OUTFILES")) yacc_flag = 1;
  73   if (cli_present("BISON$YACC")) yacc_flag = 1;
  74   /*
  75    *    Check for /VERSION qualifier
  76    */
  77   if (cli_present("BISON$VERSION")) printf("%s",version_string);
  78   /*
  79    *    Check for /NOLINES qualifier
  80    */
  81   if (cli_present("BISON$NOLINES")) no_lines_flag = 1;
  82   /*
  83    *    Check for /NOPARSER qualifier
  84    */
  85   if (cli_present("BISON$NOPARSER")) no_parser_flag = 1;
  86   /*
  87    *    Check for /RAW qualifier
  88    */
  89   if (cli_present("BISON$RAW")) raw_flag = 1;
  90   /*
  91    *    Check for /TOKEN_TABLE qualifier
  92    */
  93   if (cli_present("BISON$TOKEN_TABLE")) token_table_flag = 1;
  94   /*
  95    *    Check for /DEBUG qualifier
  96    */
  97   if (cli_present("BISON$DEBUG")) debug_flag = 1;
  98   /*
  99    *    Get the filename
 100    */
 101   cli_get_value("BISON$INFILE", Input_File, sizeof(Input_File));
 102   /*
 103    *    Lowercaseify the input filename
 104    */
 105   cp = Input_File;
 106   while(*cp)
 107     {
 108       if (isupper(*cp)) *cp = tolower(*cp);
 109       cp++;
 110     }
 111   infile = Input_File;
 112   /*
 113    *    Get the output file
 114    */
 115   if (cli_present("BISON$OUTPUT"))
 116     {
 117       cli_get_value("BISON$OUTPUT", output_spec, sizeof(output_spec));
 118       for (cp = spec_outfile = output_spec; *cp; cp++)
 119         if (isupper(*cp))
 120           *cp = tolower(*cp);
 121     }
 122   /*
 123    *    Get the output file
 124    */
 125   if (cli_present("BISON$FILE_PREFIX"))
 126     {
 127       cli_get_value("BISON$FILE_PREFIX", file_prefix_spec,
 128                      sizeof(file_prefix_spec));
 129       for (cp = spec_file_prefix = file_prefix_spec; *cp; cp++)
 130         if (isupper(*cp))
 131           *cp = tolower(*cp);
 132     }
 133   /*
 134    *    Get the output file
 135    */
 136   if (cli_present("BISON$NAME_PREFIX"))
 137     {
 138       cli_get_value("BISON$NAME_PREFIX", name_prefix_spec,
 139                      sizeof(name_prefix_spec));
 140       for (cp = spec_name_prefix = name_prefix_spec; *cp; cp++)
 141         if (isupper(*cp))
 142           *cp = tolower(*cp);
 143     }
 144 }
 145
 146 /************           DCL PARSING ROUTINES            **********/
 147
 148 /*
 149  *      See if "NAME" is present
 150  */
 151 int
 152 cli_present(Name)
 153      char *Name;
 154 {
 155   struct {int Size; char *Ptr;} Descr;
 156
 157   Descr.Ptr = Name;
 158   Descr.Size = strlen(Name);
 159   return (cli$present(&Descr) & 1) ? 1 : 0;
 160 }
 161
 162 /*
 163  *      Get value of "NAME"
 164  */
 165 int
 166 cli_get_value(Name,Buffer,Size)
 167      char *Name;
 168      char *Buffer;
 169 {
 170   struct {int Size; char *Ptr;} Descr1,Descr2;
 171
 172   Descr1.Ptr = Name;
 173   Descr1.Size = strlen(Name);
 174   Descr2.Ptr = Buffer;
 175   Descr2.Size = Size-1;
 176   if (cli$get_value(&Descr1,&Descr2,&Descr2.Size) & 1) {
 177     Buffer[Descr2.Size] = 0;
 178     return 1;
 179   }
 180   return 0;
 181 }