mirror of
https://github.com/mpv-player/mpv
synced 2024-12-29 10:32:15 +00:00
e4dc453ea0
allowing all kind of options to be used. git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@26440 b3059339-0415-0410-9bf9-f77b7e298cf2
287 lines
6.6 KiB
C
287 lines
6.6 KiB
C
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/// \defgroup ConfigParsers Config parsers
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///
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/// The \ref ConfigParsers make use of the \ref Config to setup the config variables,
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/// the command line parsers also build the playlist.
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///@{
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/// \file
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <ctype.h>
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#ifdef MP_DEBUG
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#include <assert.h>
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#endif
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#include "parser-cfg.h"
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#include "mp_msg.h"
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#include "m_option.h"
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#include "m_config.h"
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/// Maximal include depth.
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#define MAX_RECURSION_DEPTH 8
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/// Current include depth.
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static int recursion_depth = 0;
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/// Setup the \ref Config from a config file.
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/** \param config The config object.
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* \param conffile Path to the config file.
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* \return 1 on sucess, -1 on error.
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*/
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int m_config_parse_config_file(m_config_t* config, char *conffile)
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{
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#define PRINT_LINENUM mp_msg(MSGT_CFGPARSER,MSGL_V,"%s(%d): ", conffile, line_num)
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#define MAX_LINE_LEN 10000
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#define MAX_OPT_LEN 1000
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#define MAX_PARAM_LEN 1500
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FILE *fp;
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char *line;
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char opt[MAX_OPT_LEN + 1];
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char param[MAX_PARAM_LEN + 1];
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char c; /* for the "" and '' check */
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int tmp;
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int line_num = 0;
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int line_pos; /* line pos */
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int opt_pos; /* opt pos */
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int param_pos; /* param pos */
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int ret = 1;
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int errors = 0;
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int prev_mode = config->mode;
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m_profile_t* profile = NULL;
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#ifdef MP_DEBUG
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assert(config != NULL);
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// assert(conf_list != NULL);
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#endif
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mp_msg(MSGT_CFGPARSER,MSGL_V,"Reading config file %s", conffile);
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if (recursion_depth > MAX_RECURSION_DEPTH) {
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mp_msg(MSGT_CFGPARSER,MSGL_ERR,": too deep 'include'. check your configfiles\n");
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ret = -1;
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goto out;
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} else
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config->mode = M_CONFIG_FILE;
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if ((line = malloc(MAX_LINE_LEN + 1)) == NULL) {
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mp_msg(MSGT_CFGPARSER,MSGL_FATAL,"\ncan't get memory for 'line': %s", strerror(errno));
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ret = -1;
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goto out;
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} else
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mp_msg(MSGT_CFGPARSER,MSGL_V,"\n");
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if ((fp = fopen(conffile, "r")) == NULL) {
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mp_msg(MSGT_CFGPARSER,MSGL_V,": %s\n", strerror(errno));
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free(line);
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ret = 0;
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goto out;
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}
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while (fgets(line, MAX_LINE_LEN, fp)) {
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if (errors >= 16) {
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mp_msg(MSGT_CFGPARSER,MSGL_FATAL,"too many errors\n");
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goto out;
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}
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line_num++;
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line_pos = 0;
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/* skip whitespaces */
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while (isspace(line[line_pos]))
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++line_pos;
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/* EOL / comment */
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if (line[line_pos] == '\0' || line[line_pos] == '#')
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continue;
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/* read option. */
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for (opt_pos = 0; isprint(line[line_pos]) &&
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line[line_pos] != ' ' &&
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line[line_pos] != '#' &&
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line[line_pos] != '='; /* NOTHING */) {
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opt[opt_pos++] = line[line_pos++];
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if (opt_pos >= MAX_OPT_LEN) {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER,MSGL_ERR,"too long option at line %d\n",line_num);
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errors++;
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ret = -1;
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goto nextline;
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}
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}
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if (opt_pos == 0) {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER,MSGL_ERR,"parse error at line %d\n",line_num);
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ret = -1;
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errors++;
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continue;
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}
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opt[opt_pos] = '\0';
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/* Profile declaration */
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if(opt_pos > 2 && opt[0] == '[' && opt[opt_pos-1] == ']') {
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opt[opt_pos-1] = '\0';
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if(strcmp(opt+1,"default"))
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profile = m_config_add_profile(config,opt+1);
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else
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profile = NULL;
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continue;
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}
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#ifdef MP_DEBUG
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER,MSGL_V,"option: %s\n", opt);
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#endif
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/* skip whitespaces */
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while (isspace(line[line_pos]))
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++line_pos;
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/* check '=' */
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if (line[line_pos++] != '=') {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER,MSGL_ERR,"Option %s needs a parameter at line %d\n",opt,line_num);
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ret = -1;
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errors++;
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continue;
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}
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/* whitespaces... */
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while (isspace(line[line_pos]))
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++line_pos;
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/* read the parameter */
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if (line[line_pos] == '"' || line[line_pos] == '\'') {
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c = line[line_pos];
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++line_pos;
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for (param_pos = 0; line[line_pos] != c; /* NOTHING */) {
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param[param_pos++] = line[line_pos++];
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if (param_pos >= MAX_PARAM_LEN) {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER,MSGL_ERR,"Option %s has a too long parameter at line %d\n",opt,line_num);
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ret = -1;
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errors++;
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goto nextline;
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}
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}
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line_pos++; /* skip the closing " or ' */
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} else {
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for (param_pos = 0; isprint(line[line_pos]) && !isspace(line[line_pos])
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&& line[line_pos] != '#'; /* NOTHING */) {
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param[param_pos++] = line[line_pos++];
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if (param_pos >= MAX_PARAM_LEN) {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER,MSGL_ERR,"too long parameter\n");
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ret = -1;
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errors++;
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goto nextline;
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}
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}
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}
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param[param_pos] = '\0';
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/* did we read a parameter? */
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if (param_pos == 0) {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER,MSGL_ERR,"Option %s needs a parameter at line %d\n",opt,line_num);
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ret = -1;
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errors++;
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continue;
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}
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#ifdef MP_DEBUG
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER,MSGL_V,"parameter: %s\n", param);
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#endif
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/* now, check if we have some more chars on the line */
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/* whitespace... */
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while (isspace(line[line_pos]))
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++line_pos;
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/* EOL / comment */
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if (line[line_pos] != '\0' && line[line_pos] != '#') {
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PRINT_LINENUM;
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mp_msg(MSGT_CFGPARSER,MSGL_WARN,"extra characters on line %d: %s\n",line_num, line+line_pos);
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ret = -1;
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}
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if(profile) {
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if(!strcmp(opt,"profile-desc"))
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m_profile_set_desc(profile,param), tmp = 1;
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else
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tmp = m_config_set_profile_option(config,profile,
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opt,param);
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} else
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tmp = m_config_set_option(config, opt, param);
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if (tmp < 0) {
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PRINT_LINENUM;
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if(tmp == M_OPT_UNKNOWN) {
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mp_msg(MSGT_CFGPARSER,MSGL_WARN,"Warning unknown option %s at line %d\n", opt,line_num);
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continue;
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}
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mp_msg(MSGT_CFGPARSER,MSGL_ERR,"Error parsing option %s=%s at line %d\n",opt,param,line_num);
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ret = -1;
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errors++;
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continue;
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/* break */
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}
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nextline:
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;
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}
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free(line);
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fclose(fp);
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out:
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config->mode = prev_mode;
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--recursion_depth;
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return ret;
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}
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extern int mp_msg_levels[];
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/// Parse the command line option that must be handled at startup.
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int m_config_preparse_command_line(m_config_t *config, int argc, char **argv)
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{
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int msg_lvl, i, r, ret = 0;
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char* arg;
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m_option_t* opt;
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// Hack to shutup the parser error messages.
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msg_lvl = mp_msg_levels[MSGT_CFGPARSER];
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mp_msg_levels[MSGT_CFGPARSER] = -11;
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config->mode = M_COMMAND_LINE_PRE_PARSE;
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for(i = 1 ; i < argc ; i++) {
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arg = argv[i];
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// Ignore non option
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if(arg[0] != '-' || arg[1] == 0) continue;
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arg++;
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// No more options after --
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if(arg[0] == '-' && arg[1] == 0) break;
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opt = m_config_get_option(config,arg);
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// Ignore invalid option
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if(!opt) continue;
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// Set, non-pre-parse options will be ignored
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r = m_config_set_option(config,arg,
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i+1 < argc ? argv[i+1] : NULL);
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if(r < 0) ret = r;
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else i += r;
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}
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mp_msg_levels[MSGT_CFGPARSER] = msg_lvl;
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return ret;
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}
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///@}
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