wmmemfree/options.c

   1 /*
   2  *  options.c - option parser
   3  *
   4  *  Copyright (C) 2003 Draghicioiu Mihai <misuceldestept@go.ro>
   5  *
   6  *  This program 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 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program 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 this program; if not, write to the Free Software
  18  *  Foundation, Inc., 59 Temple Street #330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include "wmmemfree.h"
  26 #include "options.h"
  27
  28 char *opt_display        = OPT_DISPLAY;
  29 int   opt_buffers        = OPT_BUFFERS;
  30 int   opt_cache          = OPT_CACHE;
  31 int   opt_window         = OPT_WINDOW;
  32 int   opt_shape          = OPT_SHAPE;
  33 int   opt_milisecs       = OPT_MILISECS;
  34
  35 void print_usage()
  36 {
  37  printf("Usage: %s [OPTIONS]\n"
  38         "-h,  --help                print this help and exit\n"
  39         "-v,  --version             print version number and exit\n"
  40         "-display <DISPLAY>         specify the X11 display to connect to\n"
  41         "-m,  --milisecs <MILISECS> number of miliseconds between updates\n"
  42         "-b,  --buffers             consider buffer memory\n"
  43         "-nb, --no-buffers          ignore buffer memory\n"
  44         "-c,  --cache               consider cache memory\n"
  45         "-nc, --no-cache            ignore cache memory\n"
  46         "-w,  --window              run in a window\n"
  47         "-nw, --no-window           don't run in a window\n"
  48         "-s,  --shape               use the XShape extension\n"
  49         "-ns, --no-shape            don't use XShape extension\n",
  50         argv[0]);
  51 }
  52
  53 void print_version()
  54 {
  55  printf("WMMemFree version " OPT_VERSION "\n");
  56 }
  57
  58 void parse_args()
  59 {
  60  int n;
  61
  62  for(n=1;n<argc;n++)
  63  {
  64   if(!strcmp(argv[n], "-h") ||
  65      !strcmp(argv[n], "--help"))
  66   {
  67    print_usage();
  68    exit(0);
  69   }
  70   else if(!strcmp(argv[n], "-v") ||
  71           !strcmp(argv[n], "--version"))
  72   {
  73    print_version();
  74    exit(0);
  75   }
  76   else if(!strcmp(argv[n], "-display"))
  77   {
  78    if(argc <= (++n))
  79    {
  80     print_usage();
  81     exit(1);
  82    }
  83    else opt_display = argv[n];
  84   }
  85   else if(!strcmp(argv[n], "-m") ||
  86           !strcmp(argv[n], "--milisecs"))
  87   {
  88    if(argc <= (++n))
  89    {
  90     print_usage();
  91     exit(1);
  92    }
  93    else
  94     opt_milisecs = atoi(argv[n]);
  95   }
  96   else if(!strcmp(argv[n], "-b") ||
  97           !strcmp(argv[n], "--buffers"))
  98    opt_buffers = 1;
  99   else if(!strcmp(argv[n], "-nb") ||
 100           !strcmp(argv[n], "--no-buffers"))
 101    opt_buffers = 0;
 102   else if(!strcmp(argv[n], "-c") ||
 103           !strcmp(argv[n], "--cache"))
 104    opt_cache = 1;
 105   else if(!strcmp(argv[n], "-nc") ||
 106           !strcmp(argv[n], "--no-cache"))
 107    opt_cache = 0;
 108   else if(!strcmp(argv[n], "-w") ||
 109           !strcmp(argv[n], "--window"))
 110    opt_window = 1;
 111   else if(!strcmp(argv[n], "-nw") ||
 112           !strcmp(argv[n], "--no-window"))
 113    opt_window = 0;
 114   else if(!strcmp(argv[n], "-s") ||
 115           !strcmp(argv[n], "--shape"))
 116    opt_shape = 1;
 117   else if(!strcmp(argv[n], "-ns") ||
 118           !strcmp(argv[n], "--no-shape"))
 119    opt_shape = 0;
 120   else
 121   {
 122    print_usage();
 123    exit(1);
 124   }
 125  }
 126 }