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new command line/config file parser

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@148 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
szabii 2001-03-18 23:32:31 +00:00
parent 91ba148e8f
commit 5f4b4b9436
5 changed files with 479 additions and 110 deletions
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44
cfg-mplayer.h Normal file
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@ -0,0 +1,44 @@
/*
* config for cfgparser
*/
struct config conf[]={
/* name, pointer, type, flags, min, max */
{"vo", &video_driver, CONF_TYPE_STRING, 0, 0, 0},
{"dsp", &dsp, CONF_TYPE_STRING, 0, 0, 0},
{"encode", &encode_name, CONF_TYPE_STRING, 0, 0, 0},
{"bg", &play_in_bg, CONF_TYPE_FLAG, 0, 0, 1},
{"nobg", &play_in_bg, CONF_TYPE_FLAG, 0, 1, 0},
{"sb", &seek_to_byte, CONF_TYPE_INT, 0, 0, 0},
{"ss", &seek_to_sec, CONF_TYPE_INT, 0, 0, 0},
{"sound", &has_audio, CONF_TYPE_FLAG, 0, 0, 1},
{"nosound", &has_audio, CONF_TYPE_FLAG, 0, 1, 0},
{"abs", &audio_buffer_size, CONF_TYPE_INT, 0, 0, 0},
{"delay", &audio_delay, CONF_TYPE_FLOAT, 0, 0, 0},
{"bps", &pts_from_bps, CONF_TYPE_FLAG, 0, 0, 1},
{"nobps", &pts_from_bps, CONF_TYPE_FLAG, 0, 1, 0},
{"alsa", &alsa, CONF_TYPE_FLAG, 0, 0, 1},
{"noalsa", &alsa, CONF_TYPE_FLAG, 0, 1, 0},
{"ni", &force_ni, CONF_TYPE_FLAG, 0, 0, 1},
{"noni", &force_ni, CONF_TYPE_FLAG, 0, 1, 0},
{"aid", &audio_id, CONF_TYPE_INT, 0, 0, 0},
{"vid", &video_id, CONF_TYPE_INT, 0, 0, 0},
{"auds", &avi_header.audio_codec, CONF_TYPE_STRING, 0, 0, 0},
{"vids", &avi_header.video_codec, CONF_TYPE_STRING, 0, 0, 0},
{"mc", &default_max_pts_correction, CONF_TYPE_FLOAT, 0, 0, 0},
{"fps", &force_fps, CONF_TYPE_FLOAT, 0, 0, 0},
{"afm", &audio_format, CONF_TYPE_INT, 0, 0, 0},
{"vcd", &vcd_track, CONF_TYPE_INT, 0, 0, 0},
{"pp", &divx_quality, CONF_TYPE_INT, 0, 0, 0},
{"br", &encode_bitrate, CONF_TYPE_INT, 0, 0, 0},
{"x", &screen_size_x, CONF_TYPE_INT, 0, 0, 0},
{"y", &screen_size_y, CONF_TYPE_INT, 0, 0, 0},
{"xy", &screen_size_xy, CONF_TYPE_INT, 0, 0, 0},
{"fs", &fullscreen, CONF_TYPE_FLAG, 0, 0, 1},
{"nofs", &fullscreen, CONF_TYPE_FLAG, 0, 1, 0},
{"idx", &no_index, CONF_TYPE_FLAG, 0, 1, 0},
{"noidx", &no_index, CONF_TYPE_FLAG, 0, 0, 1},
{"v", &verbose, CONF_TYPE_FLAG, 0, 0, 1},
{"nov", &verbose, CONF_TYPE_FLAG, 0, 1, 0},
{NULL, NULL, 0, 0, 0, 0}
};

365
cfgparser.c Normal file
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@ -0,0 +1,365 @@
/*
* command line and config file parser
*/
//#define DEBUG
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#define ERR_NOT_AN_OPTION -1
#define ERR_MISSING_PARAM -2
#define ERR_OUT_OF_RANGE -3
#define COMMAND_LINE 0
#define CONFIG_FILE 1
#ifdef DEBUG
#include <assert.h>
#endif
#include "cfgparser.h"
#include "version.h"
#include "help_mp.h"
static struct config *config;
static int nr_options; /* number of options in 'conf' */
static int parser_mode; /* COMMAND_LINE or CONFIG_FILE */
static int init_conf(struct config *conf, int mode)
{
#ifdef DEBUG
assert(conf != NULL);
#endif
/* calculate the number of options in 'conf' */
for (nr_options = 0; conf[nr_options].name != NULL; nr_options++)
/* NOTHING */;
config = conf;
#ifdef DEBUG
if (mode != COMMAND_LINE && mode != CONFIG_FILE) {
printf("init_conf: wrong flag!\n");
return -1;
}
#endif
parser_mode = mode;
return 1;
}
static int read_option(char *opt, char *param)
{
int i;
int need_param = -1;
int tmp_int;
float tmp_float;
for (i = 0; i < nr_options; i++) {
if (!strcasecmp(opt, config[i].name))
break;
}
if (i == nr_options)
return ERR_NOT_AN_OPTION;
switch (config[i].type) {
case CONF_TYPE_FLAG:
/* flags need a parameter in config file */
if (parser_mode == CONFIG_FILE) {
if (!strcasecmp(param, "yes") || /* any other language? */
!strcasecmp(param, "ja") ||
!strcasecmp(param, "igen") ||
!strcasecmp(param, "y") ||
!strcasecmp(param, "i") ||
!strcmp(param, "1"))
*((int *) config[i].p) = config[i].max;
if (!strcasecmp(param, "no") ||
!strcasecmp(param, "nein") ||
!strcasecmp(param, "nicht") ||
!strcasecmp(param, "nem") ||
!strcasecmp(param, "n") ||
!strcmp(param, "0"))
*((int *) config[i].p) = config[i].min;
need_param = 1;
} else { /* parser_mode == COMMAND_LINE */
*((int *) config[i].p) = config[i].max;
need_param = 0;
}
break;
case CONF_TYPE_INT:
if (param == NULL)
return ERR_MISSING_PARAM;
if (!isdigit(*param))
return ERR_MISSING_PARAM;
tmp_int = atoi(param);
if (config[i].flags & CONF_CHK_MIN)
if (tmp_int < config[i].min)
return ERR_OUT_OF_RANGE;
if (config[i].flags & CONF_CHK_MAX)
if (tmp_int > config[i].max)
return ERR_OUT_OF_RANGE;
*((int *) config[i].p) = tmp_int;
need_param = 1;
break;
case CONF_TYPE_FLOAT:
if (param == NULL)
return ERR_MISSING_PARAM;
if (!isdigit(*param))
return ERR_MISSING_PARAM;
tmp_float = atof(param);
if (config[i].flags & CONF_CHK_MIN)
if (tmp_float < config[i].min)
return ERR_OUT_OF_RANGE;
if (config[i].flags & CONF_CHK_MAX)
if (tmp_float > config[i].max)
return ERR_OUT_OF_RANGE;
*((float *) config[i].p) = tmp_float;
need_param = 1;
break;
case CONF_TYPE_STRING:
if (param == NULL)
return ERR_MISSING_PARAM;
if (config[i].flags & CONF_CHK_MIN)
if (strlen(param) < config[i].min)
return ERR_OUT_OF_RANGE;
if (config[i].flags & CONF_CHK_MAX)
if (strlen(param) > config[i].max)
return ERR_OUT_OF_RANGE;
*((char **) config[i].p) = strdup(param);
need_param = 1;
break;
default:
printf("picsaba\n");
break;
}
return need_param;
}
int parse_config_file(struct config *conf, char *conffile)
{
#define PRINT_LINENUM printf("%s(%d): ", conffile, line_num)
#define MAX_LINE_LEN 1000
#define MAX_OPT_LEN 100
#define MAX_PARAM_LEN 100
FILE *fp;
char *line;
char opt[MAX_OPT_LEN];
char param[MAX_PARAM_LEN];
int tmp;
int line_num = 0;
int line_pos; /* line pos */
int opt_pos; /* opt pos */
int param_pos; /* param pos */
int ret = 1;
#ifdef DEBUG
assert(conffile != NULL);
#endif
printf("Reading config file: %s\n", conffile);
if (init_conf(conf, CONFIG_FILE) == -1)
return -1;
if ((line = (char *) malloc(MAX_LINE_LEN)) == NULL) {
perror("parse_config_file: can't get memory for 'line'");
return -1;
}
if ((fp = fopen(conffile, "r")) == NULL) {
perror("parse_config_file: can't open filename");
free(line);
return 0;
}
while (fgets(line, MAX_LINE_LEN, fp)) {
line_num++;
line_pos = 0;
/* skip whitespaces */
while (isspace(line[line_pos]))
++line_pos;
/* EOL / comment */
if (line[line_pos] == '\0' || line[line_pos] == '#')
continue;
/* read option. accept char if isalnum(char) */
for (opt_pos = 0; isalnum(line[line_pos]); /* NOTHING */) {
opt[opt_pos++] = line[line_pos++];
if (opt_pos >= MAX_OPT_LEN) {
PRINT_LINENUM;
printf("too long option\n");
ret = -1;
continue;
}
}
if (opt_pos == 0) {
PRINT_LINENUM;
printf("parse error\n");
ret = -1;
continue;
}
opt[opt_pos] = '\0';
#ifdef DEBUG
PRINT_LINENUM;
printf("option: %s\n", opt);
#endif
/* skip whitespaces */
while (isspace(line[line_pos]))
++line_pos;
/* check '=' */
if (line[line_pos++] != '=') {
PRINT_LINENUM;
printf("option without parameter\n");
ret = -1;
continue;
}
/* whitespaces... */
while (isspace(line[line_pos]))
++line_pos;
/* read the parameter */
for (param_pos = 0; isalnum(line[line_pos]); /* NOTHING */) {
param[param_pos++] = line[line_pos++];
if (param_pos >= MAX_PARAM_LEN) {
PRINT_LINENUM;
printf("too long parameter\n");
ret = -1;
continue;
}
}
param[param_pos] = '\0';
/* did we read a parameter? */
if (param_pos == 0) {
PRINT_LINENUM;
printf("option without parameter\n");
ret = -1;
continue;
}
#ifdef DEBUG
PRINT_LINENUM;
printf("parameter: %s\n", param);
#endif
/* now, check if we have some more chars on the line */
/* whitespace... */
while (isspace(line[line_pos]))
++line_pos;
/* EOL / comment */
if (line[line_pos] != '\0' && line[line_pos] != '#') {
PRINT_LINENUM;
printf("extra characters on line: %s\n", line+line_pos);
ret = -1;
}
tmp = read_option(opt, param);
switch (tmp) {
case ERR_NOT_AN_OPTION:
PRINT_LINENUM;
printf("invalid option: %s\n", opt);
ret = -1;
continue;
/* break; */
case ERR_MISSING_PARAM:
PRINT_LINENUM;
printf("missing parameter: %s\n", opt);
ret = -1;
continue;
/* break; */
case ERR_OUT_OF_RANGE:
PRINT_LINENUM;
printf("parameter of %s out of range\n", opt);
ret = -1;
continue;
/* break; */
}
}
free(line);
fclose(fp);
return ret;
}
int parse_command_line(struct config *conf, int argc, char **argv, char **envp, char **filename)
{
int i;
int found_filename = 0;
int tmp;
char *opt;
#ifdef DEBUG
assert(argv != NULL);
assert(envp != NULL);
assert(argc >= 1);
#endif
if (init_conf(conf, COMMAND_LINE) == -1)
return -1;
for (i = 1; i < argc; i++) {
opt = argv[i];
if (*opt != '-')
goto not_an_option;
/* remove trailing '-' */
opt++;
/* check for --help, -h, and --version */
if (!strcasecmp(opt, "-help") || !strcasecmp(opt, "h")) {
printf("%s%s", banner_text, help_text);
continue;
}
if (!strcasecmp(opt, "-version")) {
printf("%s", banner_text);
continue;
}
tmp = read_option(opt, argv[i + 1]);
switch (tmp) {
case ERR_NOT_AN_OPTION:
not_an_option:
/* opt is not an option -> treat it as a filename */
if (found_filename) {
/* we already have a filename */
printf("parse_command_line: invalid option: %s\n", argv[i]);
return -1;
} else {
found_filename = 1;
*filename = argv[i];
printf("parse_command_line: found filename: %s\n", *filename);
continue; /* next option */
}
break;
case ERR_MISSING_PARAM:
printf("parse_command_line: missing parameter: %s\n", argv[i]);
return -1;
/* break; */
case ERR_OUT_OF_RANGE:
printf("parse_command_line: parameter of '%s' is out of range\n", argv[i]);
return -1;
/* break; */
}
i += tmp; /* we already processed the params (if there was any) */
}
return found_filename;
}

38
cfgparser.h Normal file
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@ -0,0 +1,38 @@
/*
* command line and config file parser
*/
#ifndef __CONFIG_H
#define __CONFIG_H
#define CONF_TYPE_FLAG 0
#define CONF_TYPE_INT 1
#define CONF_TYPE_FLOAT 2
#define CONF_TYPE_STRING 3
#define CONF_CHK_MIN 1<<0
#define CONF_CHK_MAX 1<<1
struct config {
char *name;
void *p;
unsigned int type :2;
unsigned int flags:2;
float min,max;
};
/* parse_config_file returns:
* -1 on error (can't malloc, invalid option...)
* 0 if can't open configfile
* 1 on success
*/
int parse_config_file(struct config *conf, char *conffile);
/* parse_command_line reutrns:
* -1 on error (invalid option...)
* 0 if there was no filename on command line
* 1 if it found a filename
*/
int parse_command_line(struct config *conf, int argc, char **argv, char **envp, char **filename);
#endif /* __CONFIG_H */

71
mplayer.c
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@ -34,6 +34,8 @@
#include "version.h"
#include "config.h"
#include "cfgparser.h"
#include "libvo/video_out.h"
// CODECS:
@ -320,7 +322,7 @@ void missing_param(char *s){
int divx_quality=0;
int main(int argc,char* argv[]){
int main(int argc,char* argv[], char *envp[]){
char* filename=NULL; //"MI2-Trailer.avi";
int i;
int seek_to_sec=0;
@ -369,65 +371,24 @@ int movie_size_y=0;
int out_fmt=0;
char *dsp="/dev/dsp";
int force_ni=0;
char *homedir;
char conffile[100];
#include "cfg-mplayer.h"
printf("%s",banner_text);
/* CHKOPT(a): check, wether there is 'a' more options left */
#define CHKOPT(a) if ((argc - i) < (a + 1)) missing_param(argv[i]);
if (argc == 1)
usage();
for(i=1;i<argc;i++){
if(strcmp(argv[i],"-o")==0){
printf("Option -o has been renamed to -vo (video-out), use -vo !\n");
if (parse_config_file(conf, "/etc/mplayer.conf") < 0)
exit(1);
if ((homedir = getenv("HOME")) == NULL) {
printf("Can't find HOME dir\n");
exit(1);
} else {
snprintf(conffile, 100, "%s/.mplayerrc", homedir);
if (parse_config_file(conf, conffile) < 0)
exit(1);
} else
if(strcmp(argv[i],"-divxq")==0){
printf("Option -divxq has been renamed to -pp (postprocessing), use -pp !\n");
exit(1);
} else
if(strcmp(argv[i],"-vo")==0) {CHKOPT(1); video_driver=argv[++i];} else
if(strcmp(argv[i],"-dsp")==0) {CHKOPT(1); dsp=argv[++i];} else
if(strcmp(argv[i],"-encode")==0) {CHKOPT(1); encode_name=argv[++i];} else
if(strcmp(argv[i],"-bg")==0) {play_in_bg=1;} else
if(strcmp(argv[i],"-sb")==0) {CHKOPT(1); seek_to_byte=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-ss")==0) {CHKOPT(1); seek_to_sec=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-nosound")==0) {has_audio=0;} else
if(strcmp(argv[i],"-abs")==0) {CHKOPT(1); audio_buffer_size=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-delay")==0) {CHKOPT(1); audio_delay=strtod(argv[++i],NULL);} else
#ifdef AVI_SYNC_BPS
if(strcmp(argv[i],"-nobps")==0) {pts_from_bps=0;} else
#else
if(strcmp(argv[i],"-bps")==0) {pts_from_bps=1;} else
#endif
#ifdef ALSA_TIMER
if(strcmp(argv[i],"-noalsa")==0) {alsa=0;} else
#else
if(strcmp(argv[i],"-alsa")==0) {alsa=1;} else
#endif
if(strcmp(argv[i],"-ni")==0) {force_ni=1;} else
if(strcmp(argv[i],"-aid")==0) {CHKOPT(1); audio_id=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-vid")==0) {CHKOPT(1); video_id=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-auds")==0) {CHKOPT(1); avi_header.audio_codec=argv[++i];} else
if(strcmp(argv[i],"-vids")==0) {CHKOPT(1); avi_header.video_codec=argv[++i];} else
if(strcmp(argv[i],"-mc")==0) {CHKOPT(1); default_max_pts_correction=strtod(argv[++i],NULL);} else
if(strcmp(argv[i],"-fps")==0) {CHKOPT(1); force_fps=strtod(argv[++i],NULL);} else
if(strcmp(argv[i],"-afm")==0) {CHKOPT(1); audio_format=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-vcd")==0) {CHKOPT(1); vcd_track=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-pp")==0) {CHKOPT(1); divx_quality=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-br")==0) {CHKOPT(1); encode_bitrate=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-x")==0) {CHKOPT(1); screen_size_x=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-y")==0) {CHKOPT(1); screen_size_y=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-xy")==0) {CHKOPT(1); screen_size_xy=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-fs")==0) {fullscreen=1;} else
if(strcmp(argv[i],"-noidx")==0) {no_index=1;} else
if(strcmp(argv[i],"-v")==0) {++verbose;} else
if(strcmp(argv[i],"-h")==0) {usage();} else
if(strcmp(argv[i],"--help")==0) {usage();} else
{ if(filename){ printf("invalid option: %s\n",filename);exit(1);}
filename=argv[i];
}
}
#undef CHKOPT /* we don't need this anymore */
if (parse_command_line(conf, argc, argv, envp, &filename) < 0)
exit(1);
// Many users forget to include command line in bugreports...
if(verbose){

71
mplayerHQ.c
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@ -36,6 +36,8 @@
#include "version.h"
#include "config.h"
#include "cfgparser.h"
#include "libvo/video_out.h"
// CODECS:
@ -322,7 +324,7 @@ void missing_param(char *s){
int divx_quality=0;
int main(int argc,char* argv[]){
int main(int argc,char* argv[], char *envp[]){
char* filename=NULL; //"MI2-Trailer.avi";
int i;
int seek_to_sec=0;
@ -371,65 +373,24 @@ int movie_size_y=0;
int out_fmt=0;
char *dsp="/dev/dsp";
int force_ni=0;
char *homedir;
char conffile[100];
#include "cfg-mplayer.h"
printf("%s",banner_text);
/* CHKOPT(a): check, wether there is 'a' more options left */
#define CHKOPT(a) if ((argc - i) < (a + 1)) missing_param(argv[i]);
if (argc == 1)
usage();
for(i=1;i<argc;i++){
if(strcmp(argv[i],"-o")==0){
printf("Option -o has been renamed to -vo (video-out), use -vo !\n");
if (parse_config_file(conf, "/etc/mplayer.conf") < 0)
exit(1);
if ((homedir = getenv("HOME")) == NULL) {
printf("Can't find HOME dir\n");
exit(1);
} else {
snprintf(conffile, 100, "%s/.mplayerrc", homedir);
if (parse_config_file(conf, conffile) < 0)
exit(1);
} else
if(strcmp(argv[i],"-divxq")==0){
printf("Option -divxq has been renamed to -pp (postprocessing), use -pp !\n");
exit(1);
} else
if(strcmp(argv[i],"-vo")==0) {CHKOPT(1); video_driver=argv[++i];} else
if(strcmp(argv[i],"-dsp")==0) {CHKOPT(1); dsp=argv[++i];} else
if(strcmp(argv[i],"-encode")==0) {CHKOPT(1); encode_name=argv[++i];} else
if(strcmp(argv[i],"-bg")==0) {play_in_bg=1;} else
if(strcmp(argv[i],"-sb")==0) {CHKOPT(1); seek_to_byte=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-ss")==0) {CHKOPT(1); seek_to_sec=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-nosound")==0) {has_audio=0;} else
if(strcmp(argv[i],"-abs")==0) {CHKOPT(1); audio_buffer_size=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-delay")==0) {CHKOPT(1); audio_delay=strtod(argv[++i],NULL);} else
#ifdef AVI_SYNC_BPS
if(strcmp(argv[i],"-nobps")==0) {pts_from_bps=0;} else
#else
if(strcmp(argv[i],"-bps")==0) {pts_from_bps=1;} else
#endif
#ifdef ALSA_TIMER
if(strcmp(argv[i],"-noalsa")==0) {alsa=0;} else
#else
if(strcmp(argv[i],"-alsa")==0) {alsa=1;} else
#endif
if(strcmp(argv[i],"-ni")==0) {force_ni=1;} else
if(strcmp(argv[i],"-aid")==0) {CHKOPT(1); audio_id=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-vid")==0) {CHKOPT(1); video_id=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-auds")==0) {CHKOPT(1); avi_header.audio_codec=argv[++i];} else
if(strcmp(argv[i],"-vids")==0) {CHKOPT(1); avi_header.video_codec=argv[++i];} else
if(strcmp(argv[i],"-mc")==0) {CHKOPT(1); default_max_pts_correction=strtod(argv[++i],NULL);} else
if(strcmp(argv[i],"-fps")==0) {CHKOPT(1); force_fps=strtod(argv[++i],NULL);} else
if(strcmp(argv[i],"-afm")==0) {CHKOPT(1); audio_format=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-vcd")==0) {CHKOPT(1); vcd_track=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-pp")==0) {CHKOPT(1); divx_quality=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-br")==0) {CHKOPT(1); encode_bitrate=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-x")==0) {CHKOPT(1); screen_size_x=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-y")==0) {CHKOPT(1); screen_size_y=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-xy")==0) {CHKOPT(1); screen_size_xy=strtol(argv[++i],NULL,0);} else
if(strcmp(argv[i],"-fs")==0) {fullscreen=1;} else
if(strcmp(argv[i],"-noidx")==0) {no_index=1;} else
if(strcmp(argv[i],"-v")==0) {++verbose;} else
if(strcmp(argv[i],"-h")==0) {usage();} else
if(strcmp(argv[i],"--help")==0) {usage();} else
{ if(filename){ printf("invalid option: %s\n",filename);exit(1);}
filename=argv[i];
}
}
#undef CHKOPT /* we don't need this anymore */
if (parse_command_line(conf, argc, argv, envp, &filename) < 0)
exit(1);
// Many users forget to include command line in bugreports...
if(verbose){