mirror of
https://github.com/mpv-player/mpv
synced 2024-12-23 23:32:26 +00:00
47972a0077
These playlist parsers are all what's left from the old mplayer playlist parsing code. All of it is old code that does little error checking; the type of C string parsing code that gives you nightmare. Some playlist parsers have been rewritten and are located in demux_playlist.c. The removed formats were not reimplemented. ASX and SMIL use XML, and since we don't want to depend on a full blown XML parser, this is not so easy. Possibly these formats could be supported by writing a very primitive XML-like lexer, which would lead to success with most real world files, but I haven't attempted that. As for NSC, I couldn't find any URL that worked with MPlayer, and in general this formats seems to be more than dead. Move playlist_parse_file() to playlist.c. It's pretty small now, and basically just opens a stream and a demuxer. No use keeping playlist_parser.c just for this.
290 lines
9.1 KiB
C
290 lines
9.1 KiB
C
/*
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* This file is part of MPlayer.
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*
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* MPlayer is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* MPlayer is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with MPlayer; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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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 <assert.h>
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#include <stdbool.h>
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#include "common/global.h"
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#include "common/msg.h"
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#include "common/msg_control.h"
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#include "m_option.h"
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#include "m_config.h"
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#include "options.h"
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#include "common/playlist.h"
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#include "parse_commandline.h"
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#define GLOBAL 0
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#define LOCAL 1
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#define dvd_range(a) (a >= 0 && a < 255)
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struct parse_state {
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struct m_config *config;
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int argc;
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char **argv;
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bool no_more_opts;
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bool error;
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bool is_opt;
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struct bstr arg;
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struct bstr param;
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};
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// Returns 0 if a valid option/file is available, <0 on error, 1 on end of args.
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static int split_opt_silent(struct parse_state *p)
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{
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assert(!p->error);
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if (p->argc < 1)
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return 1;
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p->is_opt = false;
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p->arg = bstr0(p->argv[0]);
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p->param = bstr0(NULL);
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p->argc--;
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p->argv++;
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if (p->no_more_opts || !bstr_startswith0(p->arg, "-") || p->arg.len == 1)
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return 0;
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if (bstrcmp0(p->arg, "--") == 0) {
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p->no_more_opts = true;
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return split_opt_silent(p);
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}
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p->is_opt = true;
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if (!bstr_eatstart0(&p->arg, "--"))
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bstr_eatstart0(&p->arg, "-");
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bool ambiguous = !bstr_split_tok(p->arg, "=", &p->arg, &p->param);
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int r = m_config_option_requires_param(p->config, p->arg);
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if (r < 0)
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return r;
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if (ambiguous && r > 0) {
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if (p->argc < 1)
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return M_OPT_MISSING_PARAM;
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p->param = bstr0(p->argv[0]);
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p->argc--;
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p->argv++;
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}
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return 0;
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}
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// Returns true if more args, false if all parsed or an error occurred.
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static bool split_opt(struct parse_state *p)
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{
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int r = split_opt_silent(p);
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if (r >= 0)
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return r == 0;
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p->error = true;
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MP_FATAL(p->config, "Error parsing commandline option %.*s: %s\n",
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BSTR_P(p->arg), m_option_strerror(r));
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return false;
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}
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// returns M_OPT_... error code
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int m_config_parse_mp_command_line(m_config_t *config, struct playlist *files,
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struct mpv_global *global,
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int argc, char **argv)
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{
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int ret = M_OPT_UNKNOWN;
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int mode = 0;
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struct playlist_entry *local_start = NULL;
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int local_params_count = 0;
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struct playlist_param *local_params = 0;
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assert(config != NULL);
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mode = GLOBAL;
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struct parse_state p = {config, argc - 1, argv + 1};
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while (split_opt(&p)) {
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if (p.is_opt) {
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int flags = M_SETOPT_FROM_CMDLINE;
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if (mode == LOCAL)
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flags |= M_SETOPT_BACKUP | M_SETOPT_CHECK_ONLY;
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int r = m_config_set_option_ext(config, p.arg, p.param, flags);
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if (r <= M_OPT_EXIT) {
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ret = r;
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goto err_out;
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}
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if (r < 0) {
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MP_FATAL(config, "Setting commandline option --%.*s=%.*s failed.\n",
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BSTR_P(p.arg), BSTR_P(p.param));
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goto err_out;
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}
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// Handle some special arguments outside option parser.
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if (!bstrcmp0(p.arg, "{")) {
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if (mode != GLOBAL) {
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MP_ERR(config, "'--{' can not be nested.\n");
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goto err_out;
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}
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mode = LOCAL;
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assert(!local_start);
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local_start = files->last;
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continue;
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}
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if (!bstrcmp0(p.arg, "}")) {
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if (mode != LOCAL) {
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MP_ERR(config, "Too many closing '--}'.\n");
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goto err_out;
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}
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if (local_params_count) {
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// The files added between '{' and '}' are the entries from
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// the entry _after_ local_start, until the end of the list.
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// If local_start is NULL, the list was empty on '{', and we
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// want all files in the list.
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struct playlist_entry *cur
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= local_start ? local_start->next : files->first;
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if (!cur)
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MP_WARN(config, "Ignored options!\n");
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while (cur) {
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playlist_entry_add_params(cur, local_params,
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local_params_count);
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cur = cur->next;
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}
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}
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local_params_count = 0;
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mode = GLOBAL;
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m_config_restore_backups(config);
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local_start = NULL;
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continue;
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}
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if (bstrcmp0(p.arg, "playlist") == 0) {
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// append the playlist to the local args
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char *param0 = bstrdup0(NULL, p.param);
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struct playlist *pl = playlist_parse_file(param0, global);
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talloc_free(param0);
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if (!pl) {
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MP_FATAL(config, "Error reading playlist '%.*s'", BSTR_P(p.param));
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goto err_out;
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}
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playlist_transfer_entries(files, pl);
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talloc_free(pl);
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continue;
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}
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if (mode == LOCAL) {
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MP_TARRAY_APPEND(NULL, local_params, local_params_count,
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(struct playlist_param) {p.arg, p.param});
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}
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} else {
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// filename
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void *tmp = talloc_new(NULL);
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bstr file = p.arg;
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char *file0 = bstrdup0(tmp, p.arg);
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// expand DVD filename entries like dvd://1-3 into component titles
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if (bstr_startswith0(file, "dvd://")) {
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int offset = 6;
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char *splitpos = strstr(file0 + offset, "-");
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if (splitpos != NULL) {
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char *endpos;
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int start_title = strtol(file0 + offset, &endpos, 10);
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int end_title;
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//entries like dvd://-2 imply start at title 1
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if (start_title < 0) {
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end_title = abs(start_title);
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start_title = 1;
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} else
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end_title = strtol(splitpos + 1, &endpos, 10);
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if (dvd_range(start_title) && dvd_range(end_title)
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&& (start_title < end_title)) {
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for (int j = start_title; j <= end_title; j++) {
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char *f = talloc_asprintf(tmp, "dvd://%d%s", j,
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endpos);
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playlist_add_file(files, f);
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}
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} else
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MP_ERR(config, "Invalid play entry %s\n", file0);
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} else // dvd:// or dvd://x entry
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playlist_add_file(files, file0);
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} else
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playlist_add_file(files, file0);
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talloc_free(tmp);
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// Lock stdin if it will be used as input
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if (bstrcmp0(file, "-") == 0)
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m_config_set_option0(config, "consolecontrols", "no");
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}
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}
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if (p.error)
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goto err_out;
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if (mode != GLOBAL) {
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MP_ERR(config, "Missing closing --} on command line.\n");
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goto err_out;
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}
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ret = 0; // success
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err_out:
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talloc_free(local_params);
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m_config_restore_backups(config);
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return ret;
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}
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/* Parse some command line options early before main parsing.
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* --no-config prevents reading configuration files (otherwise done before
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* command line parsing), and --really-quiet suppresses messages printed
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* during normal options parsing.
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*/
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void m_config_preparse_command_line(m_config_t *config, struct mpv_global *global,
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int argc, char **argv)
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{
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struct MPOpts *opts = global->opts;
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// Hack to shut up parser error messages
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mp_msg_mute(global, true);
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struct parse_state p = {config, argc - 1, argv + 1};
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while (split_opt_silent(&p) == 0) {
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if (p.is_opt) {
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// Ignore non-pre-parse options. They will be set later.
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// Option parsing errors will be handled later as well.
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int flags = M_SETOPT_FROM_CMDLINE | M_SETOPT_PRE_PARSE_ONLY;
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m_config_set_option_ext(config, p.arg, p.param, flags);
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if (bstrcmp0(p.arg, "v") == 0)
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opts->verbose++;
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}
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}
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mp_msg_mute(global, false);
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}
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