parser-mecmd.c

   1 /*
   2  * This file is part of MPlayer.
   3  *
   4  * MPlayer 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 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * MPlayer 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 along
  15  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  16  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  17  */
  18
  19 /// \file
  20 /// \ingroup ConfigParsers MEntry
  21
  22 #include "config.h"
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <errno.h>
  28
  29 #ifdef MP_DEBUG
  30 #include <assert.h>
  31 #endif
  32
  33 #include "mp_msg.h"
  34 #include "m_option.h"
  35 #include "m_config.h"
  36 #include "parser-mecmd.h"
  37
  38 void
  39 m_entry_list_free(m_entry_t* lst) {
  40   int i,j;
  41
  42   for(i = 0 ; lst[i].name != NULL ; i++){
  43     free(lst[i].name);
  44     for(j = 0 ; lst[i].opts[2*j] != NULL ; j++) {
  45       free(lst[i].opts[2*j]);
  46       free(lst[i].opts[2*j+1]);
  47     }
  48     free(lst[i].opts);
  49   }
  50   free(lst);
  51 }
  52
  53 int
  54 m_entry_set_options(m_config_t *config, m_entry_t* entry) {
  55   int i,r;
  56
  57   for(i = 0 ; entry->opts[2*i] != NULL ; i++){
  58     r = m_config_set_option(config,entry->opts[2*i],entry->opts[2*i+1]);
  59     if(r < 0)
  60       return 0;
  61   }
  62   return 1;
  63 }
  64
  65
  66
  67
  68 m_entry_t*
  69 m_config_parse_me_command_line(m_config_t *config, int argc, char **argv)
  70 {
  71   int i,nf = 0,no = 0;
  72   int tmp;
  73   char *opt;
  74   int no_more_opts = 0;
  75   int opt_exit = 0;
  76   m_entry_t *lst = NULL, *entry = NULL;
  77
  78 #ifdef MP_DEBUG
  79   assert(config != NULL);
  80   assert(argv != NULL);
  81   assert(argc >= 1);
  82 #endif
  83
  84   config->mode = M_COMMAND_LINE;
  85
  86   lst = calloc(1,sizeof(m_entry_t));
  87
  88   for (i = 1; i < argc; i++) {
  89     //next:
  90     opt = argv[i];
  91     /* check for -- (no more options id.) except --help! */
  92     if ((*opt == '-') && (*(opt+1) == '-') && (*(opt+2) == 0))
  93       {
  94         no_more_opts = 1;
  95         if (i+1 >= argc)
  96           {
  97             mp_tmsg(MSGT_CFGPARSER, MSGL_ERR, "'--' indicates no more options, but no filename was given on the command line.\n");
  98             goto err_out;
  99           }
 100         continue;
 101       }
 102
 103     if ((no_more_opts == 0) && (*opt == '-') && (*(opt+1) != 0)) /* option */
 104       {
 105         const m_option_t* mp_opt = NULL;
 106         /* remove trailing '-' */
 107         opt++;
 108         mp_msg(MSGT_CFGPARSER, MSGL_DBG3, "this_opt = option: %s\n", opt);
 109         mp_opt = m_config_get_option(config,opt);
 110         if(!mp_opt) {
 111           tmp = M_OPT_UNKNOWN;
 112           mp_tmsg(MSGT_CFGPARSER, MSGL_ERR, "-%s is not an MEncoder option\n", opt);
 113           goto err_out;
 114         }
 115         if(!entry || (mp_opt->flags & M_OPT_GLOBAL)){
 116           tmp = m_config_set_option(config, opt, argv[i + 1]);
 117           if (tmp <= M_OPT_EXIT) {
 118             opt_exit = 1;
 119             tmp = M_OPT_EXIT - tmp;
 120           }
 121           else
 122           if(tmp < 0){
 123 //          mp_msg(MSGT_CFGPARSER, MSGL_ERR, "m_config_set_option() failed (%d)\n",tmp);
 124             mp_tmsg(MSGT_CFGPARSER, MSGL_FATAL, "Error parsing option on the command line: -%s\n", opt);
 125             goto err_out;
 126           }
 127         } else {
 128           tmp = m_config_check_option(config, opt, argv[i + 1]);
 129           if (tmp <= M_OPT_EXIT) {
 130             opt_exit = 1;
 131             tmp = M_OPT_EXIT - tmp;
 132           }
 133           if(tmp >= 0) {
 134             entry->opts = realloc(entry->opts,(no+2)*2*sizeof(char*));
 135             entry->opts[2*no] = strdup(opt);
 136             entry->opts[2*no+1] = argv[i + 1] ? strdup(argv[i + 1]) : NULL;
 137             entry->opts[2*no+2] =  entry->opts[2*no+3] = NULL;
 138             no++;
 139           } else {
 140 //          mp_msg(MSGT_CFGPARSER, MSGL_ERR, "m_config_set_option() failed (%d)\n",tmp);
 141             goto err_out;
 142           }
 143         }
 144         i += tmp;
 145       } else  {/* filename */
 146         mp_msg(MSGT_CFGPARSER, MSGL_DBG2,"Adding file %s\n",argv[i]);
 147         lst = realloc(lst,(nf+2)*sizeof(m_entry_t));
 148         lst[nf].name = strdup(argv[i]);
 149         lst[nf].opts = calloc(2,sizeof(char*));
 150         entry = &lst[nf];
 151         no = 0;
 152         memset(&lst[nf+1],0,sizeof(m_entry_t));
 153         nf++;
 154       }
 155   }
 156
 157   if (opt_exit)
 158     exit(0);
 159   if(nf == 0) {
 160     m_entry_list_free(lst);
 161     mp_tmsg(MSGT_CFGPARSER, MSGL_ERR, "No file given\n");
 162     return NULL;
 163   }
 164   return lst;
 165
 166  err_out:
 167    m_entry_list_free(lst);
 168   return NULL;
 169 }