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 "help_mp.h"
  35 #include "m_option.h"
  36 #include "m_config.h"
  37 #include "parser-mecmd.h"
  38
  39 void
  40 m_entry_list_free(m_entry_t* lst) {
  41   int i,j;
  42
  43   for(i = 0 ; lst[i].name != NULL ; i++){
  44     free(lst[i].name);
  45     for(j = 0 ; lst[i].opts[2*j] != NULL ; j++) {
  46       free(lst[i].opts[2*j]);
  47       free(lst[i].opts[2*j+1]);
  48     }
  49     free(lst[i].opts);
  50   }
  51   free(lst);
  52 }
  53
  54 int
  55 m_entry_set_options(m_config_t *config, m_entry_t* entry) {
  56   int i,r;
  57
  58   for(i = 0 ; entry->opts[2*i] != NULL ; i++){
  59     r = m_config_set_option(config,entry->opts[2*i],entry->opts[2*i+1]);
  60     if(r < 0)
  61       return 0;
  62   }
  63   return 1;
  64 }
  65
  66
  67
  68
  69 m_entry_t*
  70 m_config_parse_me_command_line(m_config_t *config, int argc, char **argv)
  71 {
  72   int i,nf = 0,no = 0;
  73   int tmp;
  74   char *opt;
  75   int no_more_opts = 0;
  76   int opt_exit = 0;
  77   m_entry_t *lst = NULL, *entry = NULL;
  78
  79 #ifdef MP_DEBUG
  80   assert(config != NULL);
  81   assert(argv != NULL);
  82   assert(argc >= 1);
  83 #endif
  84
  85   config->mode = M_COMMAND_LINE;
  86
  87   lst = calloc(1,sizeof(m_entry_t));
  88
  89   for (i = 1; i < argc; i++) {
  90     //next:
  91     opt = argv[i];
  92     /* check for -- (no more options id.) except --help! */
  93     if ((*opt == '-') && (*(opt+1) == '-') && (*(opt+2) == 0))
  94       {
  95         no_more_opts = 1;
  96         if (i+1 >= argc)
  97           {
  98             mp_tmsg(MSGT_CFGPARSER, MSGL_ERR, "'--' indicates no more options, but no filename was given on the command line.\n");
  99             goto err_out;
 100           }
 101         continue;
 102       }
 103
 104     if ((no_more_opts == 0) && (*opt == '-') && (*(opt+1) != 0)) /* option */
 105       {
 106         const m_option_t* mp_opt = NULL;
 107         /* remove trailing '-' */
 108         opt++;
 109         mp_msg(MSGT_CFGPARSER, MSGL_DBG3, "this_opt = option: %s\n", opt);
 110         mp_opt = m_config_get_option(config,opt);
 111         if(!mp_opt) {
 112           tmp = M_OPT_UNKNOWN;
 113           mp_tmsg(MSGT_CFGPARSER, MSGL_ERR, "-%s is not an MEncoder option\n", opt);
 114           goto err_out;
 115         }
 116         if(!entry || (mp_opt->flags & M_OPT_GLOBAL)){
 117           tmp = m_config_set_option(config, opt, argv[i + 1]);
 118           if (tmp <= M_OPT_EXIT) {
 119             opt_exit = 1;
 120             tmp = M_OPT_EXIT - tmp;
 121           }
 122           else
 123           if(tmp < 0){
 124 //          mp_msg(MSGT_CFGPARSER, MSGL_ERR, "m_config_set_option() failed (%d)\n",tmp);
 125             mp_tmsg(MSGT_CFGPARSER, MSGL_FATAL, "Error parsing option on the command line: -%s\n", opt);
 126             goto err_out;
 127           }
 128         } else {
 129           tmp = m_config_check_option(config, opt, argv[i + 1]);
 130           if (tmp <= M_OPT_EXIT) {
 131             opt_exit = 1;
 132             tmp = M_OPT_EXIT - tmp;
 133           }
 134           if(tmp >= 0) {
 135             entry->opts = realloc(entry->opts,(no+2)*2*sizeof(char*));
 136             entry->opts[2*no] = strdup(opt);
 137             entry->opts[2*no+1] = argv[i + 1] ? strdup(argv[i + 1]) : NULL;
 138             entry->opts[2*no+2] =  entry->opts[2*no+3] = NULL;
 139             no++;
 140           } else {
 141 //          mp_msg(MSGT_CFGPARSER, MSGL_ERR, "m_config_set_option() failed (%d)\n",tmp);
 142             goto err_out;
 143           }
 144         }
 145         i += tmp;
 146       } else  {/* filename */
 147         mp_msg(MSGT_CFGPARSER, MSGL_DBG2,"Adding file %s\n",argv[i]);
 148         lst = realloc(lst,(nf+2)*sizeof(m_entry_t));
 149         lst[nf].name = strdup(argv[i]);
 150         lst[nf].opts = calloc(2,sizeof(char*));
 151         entry = &lst[nf];
 152         no = 0;
 153         memset(&lst[nf+1],0,sizeof(m_entry_t));
 154         nf++;
 155       }
 156   }
 157
 158   if (opt_exit)
 159     exit(0);
 160   if(nf == 0) {
 161     m_entry_list_free(lst);
 162     mp_tmsg(MSGT_CFGPARSER, MSGL_ERR, "No file given\n");
 163     return NULL;
 164   }
 165   return lst;
 166
 167  err_out:
 168    m_entry_list_free(lst);
 169   return NULL;
 170 }