C++ OPT_STRING函数代码示例

int cmd_push(int argc, const char **argv, const char *prefix)
{
	int flags = 0;
	int tags = 0;
	int rc;
	const char *repo = NULL;	/* default repository */
	struct option options[] = {
		OPT__VERBOSITY(&verbosity),
		OPT_STRING( 0 , "repo", &repo, N_("repository"), N_("repository")),
		OPT_BIT( 0 , "all", &flags, N_("push all refs"), TRANSPORT_PUSH_ALL),
		OPT_BIT( 0 , "mirror", &flags, N_("mirror all refs"),
			    (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE)),
		OPT_BOOL( 0, "delete", &deleterefs, N_("delete refs")),
		OPT_BOOL( 0 , "tags", &tags, N_("push tags (can't be used with --all or --mirror)")),
		OPT_BIT('n' , "dry-run", &flags, N_("dry run"), TRANSPORT_PUSH_DRY_RUN),
		OPT_BIT( 0,  "porcelain", &flags, N_("machine-readable output"), TRANSPORT_PUSH_PORCELAIN),
		OPT_BIT('f', "force", &flags, N_("force updates"), TRANSPORT_PUSH_FORCE),
		{ OPTION_CALLBACK,
		  0, CAS_OPT_NAME, &cas, N_("refname>:<expect"),
		  N_("require old value of ref to be at this value"),
		  PARSE_OPT_OPTARG, parseopt_push_cas_option },
		{ OPTION_CALLBACK, 0, "recurse-submodules", &flags, N_("check"),
			N_("control recursive pushing of submodules"),
			PARSE_OPT_OPTARG, option_parse_recurse_submodules },
		OPT_BOOL( 0 , "thin", &thin, N_("use thin pack")),
		OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
		OPT_STRING( 0 , "exec", &receivepack, "receive-pack", N_("receive pack program")),
		OPT_BIT('u', "set-upstream", &flags, N_("set upstream for git pull/status"),
			TRANSPORT_PUSH_SET_UPSTREAM),
		OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
		OPT_BIT(0, "prune", &flags, N_("prune locally removed refs"),
			TRANSPORT_PUSH_PRUNE),
		OPT_BIT(0, "no-verify", &flags, N_("bypass pre-push hook"), TRANSPORT_PUSH_NO_HOOK),
		OPT_BIT(0, "follow-tags", &flags, N_("push missing but relevant tags"),
			TRANSPORT_PUSH_FOLLOW_TAGS),
		OPT_END()
	};

	packet_trace_identity("push");
	git_config(git_default_config, NULL);
	argc = parse_options(argc, argv, prefix, options, push_usage, 0);

	if (deleterefs && (tags || (flags & (TRANSPORT_PUSH_ALL | TRANSPORT_PUSH_MIRROR))))
		die(_("--delete is incompatible with --all, --mirror and --tags"));
	if (deleterefs && argc < 2)
		die(_("--delete doesn't make sense without any refs"));

	if (tags)
		add_refspec("refs/tags/*");

	if (argc > 0) {
		repo = argv[0];
		set_refspecs(argv + 1, argc - 1, repo);
	}

	rc = do_push(repo, flags);
	if (rc == -1)
		usage_with_options(push_usage, options);
	else
		return rc;
}

int cmd_commit(int argc, const char **argv, const char *prefix)
{
	static struct wt_status s;
	static struct option builtin_commit_options[] = {
		OPT__QUIET(&quiet, N_("suppress summary after successful commit")),
		OPT__VERBOSE(&verbose, N_("show diff in commit message template")),

		OPT_GROUP(N_("Commit message options")),
		OPT_FILENAME('F', "file", &logfile, N_("read message from file")),
		OPT_STRING(0, "author", &force_author, N_("author"), N_("override author for commit")),
		OPT_STRING(0, "date", &force_date, N_("date"), N_("override date for commit")),
		OPT_CALLBACK('m', "message", &message, N_("message"), N_("commit message"), opt_parse_m),
		OPT_STRING('c', "reedit-message", &edit_message, N_("commit"), N_("reuse and edit message from specified commit")),
		OPT_STRING('C', "reuse-message", &use_message, N_("commit"), N_("reuse message from specified commit")),
		OPT_STRING(0, "fixup", &fixup_message, N_("commit"), N_("use autosquash formatted message to fixup specified commit")),
		OPT_STRING(0, "squash", &squash_message, N_("commit"), N_("use autosquash formatted message to squash specified commit")),
		OPT_BOOLEAN(0, "reset-author", &renew_authorship, N_("the commit is authored by me now (used with -C/-c/--amend)")),
		OPT_BOOLEAN('s', "signoff", &signoff, N_("add Signed-off-by:")),
		OPT_FILENAME('t', "template", &template_file, N_("use specified template file")),
		OPT_BOOL('e', "edit", &edit_flag, N_("force edit of commit")),
		OPT_STRING(0, "cleanup", &cleanup_arg, N_("default"), N_("how to strip spaces and #comments from message")),
		OPT_BOOLEAN(0, "status", &include_status, N_("include status in commit message template")),
		{ OPTION_STRING, 'S', "gpg-sign", &sign_commit, N_("key id"),
		  N_("GPG sign commit"), PARSE_OPT_OPTARG, NULL, (intptr_t) "" },
		/* end commit message options */

		OPT_GROUP(N_("Commit contents options")),
		OPT_BOOLEAN('a', "all", &all, N_("commit all changed files")),
		OPT_BOOLEAN('i', "include", &also, N_("add specified files to index for commit")),
		OPT_BOOLEAN(0, "interactive", &interactive, N_("interactively add files")),
		OPT_BOOLEAN('p', "patch", &patch_interactive, N_("interactively add changes")),
		OPT_BOOLEAN('o', "only", &only, N_("commit only specified files")),
		OPT_BOOLEAN('n', "no-verify", &no_verify, N_("bypass pre-commit hook")),
		OPT_BOOLEAN(0, "dry-run", &dry_run, N_("show what would be committed")),
		OPT_SET_INT(0, "short", &status_format, N_("show status concisely"),
			    STATUS_FORMAT_SHORT),
		OPT_BOOLEAN(0, "branch", &s.show_branch, N_("show branch information")),
		OPT_SET_INT(0, "porcelain", &status_format,
			    N_("machine-readable output"), STATUS_FORMAT_PORCELAIN),
		OPT_SET_INT(0, "long", &status_format,
			    N_("show status in long format (default)"),
			    STATUS_FORMAT_LONG),
		OPT_BOOLEAN('z', "null", &s.null_termination,
			    N_("terminate entries with NUL")),
		OPT_BOOLEAN(0, "amend", &amend, N_("amend previous commit")),
		OPT_BOOLEAN(0, "no-post-rewrite", &no_post_rewrite, N_("bypass post-rewrite hook")),
		{ OPTION_STRING, 'u', "untracked-files", &untracked_files_arg, N_("mode"), N_("show untracked files, optional modes: all, normal, no. (Default: all)"), PARSE_OPT_OPTARG, NULL, (intptr_t)"all" },
		/* end commit contents options */

		{ OPTION_BOOLEAN, 0, "allow-empty", &allow_empty, NULL,
		  N_("ok to record an empty change"),
		  PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },
		{ OPTION_BOOLEAN, 0, "allow-empty-message", &allow_empty_message, NULL,
		  N_("ok to record a change with an empty message"),
		  PARSE_OPT_NOARG | PARSE_OPT_HIDDEN },

		OPT_END()
	};

	struct strbuf sb = STRBUF_INIT;
	struct strbuf author_ident = STRBUF_INIT;
	const char *index_file, *reflog_msg;
	char *nl, *p;
	unsigned char sha1[20];
	struct ref_lock *ref_lock;
	struct commit_list *parents = NULL, **pptr = &parents;
	struct stat statbuf;
	int allow_fast_forward = 1;
	struct commit *current_head = NULL;
	struct commit_extra_header *extra = NULL;

	if (argc == 2 && !strcmp(argv[1], "-h"))
		usage_with_options(builtin_commit_usage, builtin_commit_options);

	wt_status_prepare(&s);
	gitmodules_config();
	git_config(git_commit_config, &s);
	determine_whence(&s);
	s.colopts = 0;

	if (get_sha1("HEAD", sha1))
		current_head = NULL;
	else {
		current_head = lookup_commit_or_die(sha1, "HEAD");
		if (!current_head || parse_commit(current_head))
			die(_("could not parse HEAD commit"));
	}
	argc = parse_and_validate_options(argc, argv, builtin_commit_options,
					  builtin_commit_usage,
					  prefix, current_head, &s);
	if (dry_run)
		return dry_run_commit(argc, argv, prefix, current_head, &s);
	index_file = prepare_index(argc, argv, prefix, current_head, 0);

	/* Set up everything for writing the commit object.  This includes
	   running hooks, writing the trees, and interacting with the user.  */
	if (!prepare_to_commit(index_file, prefix,
			       current_head, &s, &author_ident)) {
		rollback_index_files();
		return 1;
//.........这里部分代码省略.........

#include "dvbin.h"
#include "dvb_tune.h"


#define MAX_CHANNELS 8
#define CHANNEL_LINE_LEN 256
#define min(a, b) ((a) <= (b) ? (a) : (b))


//TODO: CAMBIARE list_ptr e da globale a per_priv

#define OPT_BASE_STRUCT struct dvb_params

/// URL definition
static const m_option_t stream_params[] = {
    OPT_STRING("prog", cfg_prog, 0),
    OPT_INTRANGE("card", cfg_card, 0, 1, 4),
    {0}
};

const struct m_sub_options stream_dvb_conf = {
    .opts = (const m_option_t[]) {
        OPT_STRING("prog", cfg_prog, 0),
        OPT_INTRANGE("card", cfg_card, 0, 1, 4),
        OPT_INTRANGE("timeout",  cfg_timeout, 0, 1, 30),
        {0}
    },
    .size = sizeof(struct dvb_params),
    .defaults = &(const struct dvb_params){
        .cfg_prog = "",
        .cfg_card = 1,

    int toc_bias;
    int toc_offset;
    int no_skip;
    char *device;
    int span[2];
} cdda_priv;

static cdda_priv cdda_dflts = {
    .search_overlap = -1,
};

#define OPT_BASE_STRUCT cdda_priv
static const m_option_t cdda_params_fields[] = {
    OPT_INTPAIR("span", span, 0),
    OPT_INTRANGE("speed", speed, 0, 1, 100),
    OPT_STRING("device", device, 0),
    {0}
};

/// We keep these options but now they set the defaults
const m_option_t cdda_opts[] = {
    {"speed", &cdda_dflts.speed, CONF_TYPE_INT, M_OPT_RANGE, 1, 100, NULL},
    {"paranoia", &cdda_dflts.paranoia_mode, CONF_TYPE_INT, M_OPT_RANGE, 0, 2,
     NULL},
    {"generic-dev", &cdda_dflts.generic_dev, CONF_TYPE_STRING, 0, 0, 0, NULL},
    {"sector-size", &cdda_dflts.sector_size, CONF_TYPE_INT, M_OPT_RANGE, 1,
     100, NULL},
    {"overlap", &cdda_dflts.search_overlap, CONF_TYPE_INT, M_OPT_RANGE, 0, 75,
     NULL},
    {"toc-bias", &cdda_dflts.toc_bias, CONF_TYPE_INT, 0, 0, 0, NULL},
    {"toc-offset", &cdda_dflts.toc_offset, CONF_TYPE_INT, 0, 0, 0, NULL},

#define ACTION_SET (1<<11)
#define ACTION_SET_ALL (1<<12)
#define ACTION_GET_COLOR (1<<13)
#define ACTION_GET_COLORBOOL (1<<14)

#define TYPE_BOOL (1<<0)
#define TYPE_INT (1<<1)
#define TYPE_BOOL_OR_INT (1<<2)
#define TYPE_PATH (1<<3)

static struct option builtin_config_options[] = {
    OPT_GROUP("Config file location"),
    OPT_BOOLEAN(0, "global", &use_global_config, "use global config file"),
    OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"),
    OPT_BOOLEAN(0, "local", &use_local_config, "use repository config file"),
    OPT_STRING('f', "file", &given_config_file, "file", "use given config file"),
    OPT_GROUP("Action"),
    OPT_BIT(0, "get", &actions, "get value: name [value-regex]", ACTION_GET),
    OPT_BIT(0, "get-all", &actions, "get all values: key [value-regex]", ACTION_GET_ALL),
    OPT_BIT(0, "get-regexp", &actions, "get values for regexp: name-regex [value-regex]", ACTION_GET_REGEXP),
    OPT_BIT(0, "replace-all", &actions, "replace all matching variables: name value [value_regex]", ACTION_REPLACE_ALL),
    OPT_BIT(0, "add", &actions, "adds a new variable: name value", ACTION_ADD),
    OPT_BIT(0, "unset", &actions, "removes a variable: name [value-regex]", ACTION_UNSET),
    OPT_BIT(0, "unset-all", &actions, "removes all matches: name [value-regex]", ACTION_UNSET_ALL),
    OPT_BIT(0, "rename-section", &actions, "rename section: old-name new-name", ACTION_RENAME_SECTION),
    OPT_BIT(0, "remove-section", &actions, "remove a section: name", ACTION_REMOVE_SECTION),
    OPT_BIT('l', "list", &actions, "list all", ACTION_LIST),
    OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT),
    OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"),
    OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"),
    OPT_GROUP("Type"),

int cmd_describe(int argc, const char **argv, const char *prefix)
{
	int contains = 0;
	struct option options[] = {
		OPT_BOOLEAN(0, "contains",   &contains, N_("find the tag that comes after the commit")),
		OPT_BOOLEAN(0, "debug",      &debug, N_("debug search strategy on stderr")),
		OPT_BOOLEAN(0, "all",        &all, N_("use any ref")),
		OPT_BOOLEAN(0, "tags",       &tags, N_("use any tag, even unannotated")),
		OPT_BOOLEAN(0, "long",       &longformat, N_("always use long format")),
		OPT__ABBREV(&abbrev),
		OPT_SET_INT(0, "exact-match", &max_candidates,
			    N_("only output exact matches"), 0),
		OPT_INTEGER(0, "candidates", &max_candidates,
			    N_("consider <n> most recent tags (default: 10)")),
		OPT_STRING(0, "match",       &pattern, N_("pattern"),
			   N_("only consider tags matching <pattern>")),
		OPT_BOOLEAN(0, "always",     &always,
			   N_("show abbreviated commit object as fallback")),
		{OPTION_STRING, 0, "dirty",  &dirty, N_("mark"),
			   N_("append <mark> on dirty working tree (default: \"-dirty\")"),
		 PARSE_OPT_OPTARG, NULL, (intptr_t) "-dirty"},
		OPT_END(),
	};

	git_config(git_default_config, NULL);
	argc = parse_options(argc, argv, prefix, options, describe_usage, 0);
	if (abbrev < 0)
		abbrev = DEFAULT_ABBREV;

	if (max_candidates < 0)
		max_candidates = 0;
	else if (max_candidates > MAX_TAGS)
		max_candidates = MAX_TAGS;

	save_commit_buffer = 0;

	if (longformat && abbrev == 0)
		die(_("--long is incompatible with --abbrev=0"));

	if (contains) {
		const char **args = xmalloc((7 + argc) * sizeof(char *));
		int i = 0;
		args[i++] = "name-rev";
		args[i++] = "--name-only";
		args[i++] = "--no-undefined";
		if (always)
			args[i++] = "--always";
		if (!all) {
			args[i++] = "--tags";
			if (pattern) {
				char *s = xmalloc(strlen("--refs=refs/tags/") + strlen(pattern) + 1);
				sprintf(s, "--refs=refs/tags/%s", pattern);
				args[i++] = s;
			}
		}
		memcpy(args + i, argv, argc * sizeof(char *));
		args[i + argc] = NULL;
		return cmd_name_rev(i + argc, args, prefix);
	}

	init_hash(&names);
	for_each_rawref(get_name, NULL);
	if (!names.nr && !always)
		die(_("No names found, cannot describe anything."));

	if (argc == 0) {
		if (dirty) {
			static struct lock_file index_lock;
			int fd;

			read_cache_preload(NULL);
			refresh_index(&the_index, REFRESH_QUIET|REFRESH_UNMERGED,
				      NULL, NULL, NULL);
			fd = hold_locked_index(&index_lock, 0);
			if (0 <= fd)
				update_index_if_able(&the_index, &index_lock);

			if (!cmd_diff_index(ARRAY_SIZE(diff_index_args) - 1,
					    diff_index_args, prefix))
				dirty = NULL;
		}
		describe("HEAD", 1);
	} else if (dirty) {
		die(_("--dirty is incompatible with committishes"));
	} else {
		while (argc-- > 0) {
			describe(*argv++, argc == 0);
		}
	}
	return 0;
}

int main(int argc, char **argv)
{
    abrt_init(argv);

    const char *dump_dir_name = ".";

    /* Can't keep these strings/structs static: _() doesn't support that */
    const char *program_usage_string = _(
        "\b [-v] -d DIR\n"
        "\n"
        "Calculates and saves UUID and DUPHASH of python crash dumps"
    );
    enum {
        OPT_v = 1 << 0,
        OPT_d = 1 << 1,
    };
    /* Keep enum above and order of options below in sync! */
    struct options program_options[] = {
        OPT__VERBOSE(&g_verbose),
        OPT_STRING('d', NULL, &dump_dir_name, "DIR", _("Dump directory")),
        OPT_END()
    };
    /*unsigned opts =*/ parse_opts(argc, argv, program_options, program_usage_string);

    export_abrt_envvars(0);

    struct dump_dir *dd = dd_opendir(dump_dir_name, /*flags:*/ 0);
    if (!dd)
        return 1;
    char *bt = dd_load_text(dd, FILENAME_BACKTRACE);

    /* Hash 1st line of backtrace and save it as UUID and DUPHASH */
    /* "example.py:1:<module>:ZeroDivisionError: integer division or modulo by zero" */

    unsigned char hash_bytes[SHA1_RESULT_LEN];
    sha1_ctx_t sha1ctx;
    sha1_begin(&sha1ctx);
    const char *bt_end = strchrnul(bt, '\n');
    sha1_hash(&sha1ctx, bt, bt_end - bt);
    sha1_end(&sha1ctx, hash_bytes);
    free(bt);

    char hash_str[SHA1_RESULT_LEN*2 + 1];
    unsigned len = SHA1_RESULT_LEN;
    unsigned char *s = hash_bytes;
    char *d = hash_str;
    while (len)
    {
        *d++ = "0123456789abcdef"[*s >> 4];
        *d++ = "0123456789abcdef"[*s & 0xf];
        s++;
        len--;
    }
    *d = '\0';

    dd_save_text(dd, FILENAME_UUID, hash_str);
    dd_save_text(dd, FILENAME_DUPHASH, hash_str);
    dd_close(dd);

    return 0;
}

static int add(int ac, const char **av, const char *prefix)
{
	struct add_opts opts;
	const char *new_branch_force = NULL;
	char *path;
	const char *branch;
	const char *opt_track = NULL;
	struct option options[] = {
		OPT__FORCE(&opts.force,
			   N_("checkout <branch> even if already checked out in other worktree"),
			   PARSE_OPT_NOCOMPLETE),
		OPT_STRING('b', NULL, &opts.new_branch, N_("branch"),
			   N_("create a new branch")),
		OPT_STRING('B', NULL, &new_branch_force, N_("branch"),
			   N_("create or reset a branch")),
		OPT_BOOL(0, "detach", &opts.detach, N_("detach HEAD at named commit")),
		OPT_BOOL(0, "checkout", &opts.checkout, N_("populate the new working tree")),
		OPT_BOOL(0, "lock", &opts.keep_locked, N_("keep the new working tree locked")),
		OPT_PASSTHRU(0, "track", &opt_track, NULL,
			     N_("set up tracking mode (see git-branch(1))"),
			     PARSE_OPT_NOARG | PARSE_OPT_OPTARG),
		OPT_BOOL(0, "guess-remote", &guess_remote,
			 N_("try to match the new branch name with a remote-tracking branch")),
		OPT_END()
	};

	memset(&opts, 0, sizeof(opts));
	opts.checkout = 1;
	ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
	if (!!opts.detach + !!opts.new_branch + !!new_branch_force > 1)
		die(_("-b, -B, and --detach are mutually exclusive"));
	if (ac < 1 || ac > 2)
		usage_with_options(worktree_usage, options);

	path = prefix_filename(prefix, av[0]);
	branch = ac < 2 ? "HEAD" : av[1];

	if (!strcmp(branch, "-"))
		branch = "@{-1}";

	opts.force_new_branch = !!new_branch_force;
	if (opts.force_new_branch) {
		struct strbuf symref = STRBUF_INIT;

		opts.new_branch = new_branch_force;

		if (!opts.force &&
		    !strbuf_check_branch_ref(&symref, opts.new_branch) &&
		    ref_exists(symref.buf))
			die_if_checked_out(symref.buf, 0);
		strbuf_release(&symref);
	}

	if (ac < 2 && !opts.new_branch && !opts.detach) {
		int n;
		const char *s = worktree_basename(path, &n);
		opts.new_branch = xstrndup(s, n);
		if (guess_remote) {
			struct object_id oid;
			const char *remote =
				unique_tracking_name(opts.new_branch, &oid);
			if (remote)
				branch = remote;
		}
	}

	if (ac == 2 && !opts.new_branch && !opts.detach) {
		struct object_id oid;
		struct commit *commit;
		const char *remote;

		commit = lookup_commit_reference_by_name(branch);
		if (!commit) {
			remote = unique_tracking_name(branch, &oid);
			if (remote) {
				opts.new_branch = branch;
				branch = remote;
			}
		}
	}

	if (opts.new_branch) {
		struct child_process cp = CHILD_PROCESS_INIT;
		cp.git_cmd = 1;
		argv_array_push(&cp.args, "branch");
		if (opts.force_new_branch)
			argv_array_push(&cp.args, "--force");
		argv_array_push(&cp.args, opts.new_branch);
		argv_array_push(&cp.args, branch);
		if (opt_track)
			argv_array_push(&cp.args, opt_track);
		if (run_command(&cp))
			return -1;
		branch = opts.new_branch;
	} else if (opt_track) {
		die(_("--[no-]track can only be used if a new branch is created"));
	}

	UNLEAK(path);
	UNLEAK(opts);
//.........这里部分代码省略.........

#include <sys/time.h>
#include <errno.h>

#define K 1024

static const char	*length_str	= "1MB";
static const char	*routine	= "default";
static int		iterations	= 1;
static bool		use_cycle;
static int		cycle_fd;
static bool		only_prefault;
static bool		no_prefault;

static const struct option options[] = {
	OPT_STRING('l', "length", &length_str, "1MB",
		    "Specify length of memory to set. "
		    "Available units: B, KB, MB, GB and TB (upper and lower)"),
	OPT_STRING('r', "routine", &routine, "default",
		    "Specify routine to set"),
	OPT_INTEGER('i', "iterations", &iterations,
		    "repeat memset() invocation this number of times"),
	OPT_BOOLEAN('c', "cycle", &use_cycle,
		    "Use cycles event instead of gettimeofday() for measuring"),
	OPT_BOOLEAN('o', "only-prefault", &only_prefault,
		    "Show only the result with page faults before memset()"),
	OPT_BOOLEAN('n', "no-prefault", &no_prefault,
		    "Show only the result without page faults before memset()"),
	OPT_END()
};

typedef void *(*memset_t)(void *, int, size_t);

#define	DVDREAD_VERSION	LIBDVDREAD_VERSION(0,9,0)
#else
#define	DVDREAD_VERSION	LIBDVDREAD_VERSION(0,8,0)
#endif
#endif


static const dvd_priv_t stream_priv_dflts = {
  .cfg_title = 0,
};

#define OPT_BASE_STRUCT dvd_priv_t
/// URL definition
static const m_option_t stream_opts_fields[] = {
    OPT_INTRANGE("title", cfg_title, 0, 0, 99),
    OPT_STRING("device", cfg_device, 0),
    {0}
};

int dvd_chapter_from_cell(dvd_priv_t* dvd,int title,int cell)
{
  pgc_t * cur_pgc;
  ptt_info_t* ptt;
  int chapter = cell;
  int pgc_id,pgn;
  if(title < 0 || cell < 0){
    return 0;
  }
  /* for most DVD's chapter == cell */
  /* but there are more complecated cases... */
  if(chapter >= dvd->vmg_file->tt_srpt->title[title].nr_of_ptts) {

int cmd_buildid_cache(int argc, const char **argv)
{
	struct strlist *list;
	struct str_node *pos;
	int ret = 0;
	int ns_id = -1;
	bool force = false;
	char const *add_name_list_str = NULL,
		   *remove_name_list_str = NULL,
		   *purge_name_list_str = NULL,
		   *missing_filename = NULL,
		   *update_name_list_str = NULL,
		   *kcore_filename = NULL;
	char sbuf[STRERR_BUFSIZE];

	struct perf_data data = {
		.mode  = PERF_DATA_MODE_READ,
	};
	struct perf_session *session = NULL;
	struct nsinfo *nsi = NULL;

	const struct option buildid_cache_options[] = {
	OPT_STRING('a', "add", &add_name_list_str,
		   "file list", "file(s) to add"),
	OPT_STRING('k', "kcore", &kcore_filename,
		   "file", "kcore file to add"),
	OPT_STRING('r', "remove", &remove_name_list_str, "file list",
		    "file(s) to remove"),
	OPT_STRING('p', "purge", &purge_name_list_str, "path list",
		    "path(s) to remove (remove old caches too)"),
	OPT_STRING('M', "missing", &missing_filename, "file",
		   "to find missing build ids in the cache"),
	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
	OPT_STRING('u', "update", &update_name_list_str, "file list",
		    "file(s) to update"),
	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
	OPT_INTEGER(0, "target-ns", &ns_id, "target pid for namespace context"),
	OPT_END()
	};
	const char * const buildid_cache_usage[] = {
		"perf buildid-cache [<options>]",
		NULL
	};

	argc = parse_options(argc, argv, buildid_cache_options,
			     buildid_cache_usage, 0);

	if (argc || (!add_name_list_str && !kcore_filename &&
		     !remove_name_list_str && !purge_name_list_str &&
		     !missing_filename && !update_name_list_str))
		usage_with_options(buildid_cache_usage, buildid_cache_options);

	if (ns_id > 0)
		nsi = nsinfo__new(ns_id);

	if (missing_filename) {
		data.file.path = missing_filename;
		data.force     = force;

		session = perf_session__new(&data, false, NULL);
		if (session == NULL)
			return -1;
	}

	if (symbol__init(session ? &session->header.env : NULL) < 0)
		goto out;

	setup_pager();

	if (add_name_list_str) {
		list = strlist__new(add_name_list_str, NULL);
		if (list) {
			strlist__for_each_entry(pos, list)
				if (build_id_cache__add_file(pos->s, nsi)) {
					if (errno == EEXIST) {
						pr_debug("%s already in the cache\n",
							 pos->s);
						continue;
					}
					pr_warning("Couldn't add %s: %s\n",
						   pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
				}

			strlist__delete(list);
		}
	}

	if (remove_name_list_str) {
		list = strlist__new(remove_name_list_str, NULL);
		if (list) {
			strlist__for_each_entry(pos, list)
				if (build_id_cache__remove_file(pos->s, nsi)) {
					if (errno == ENOENT) {
						pr_debug("%s wasn't in the cache\n",
							 pos->s);
						continue;
					}
					pr_warning("Couldn't remove %s: %s\n",
						   pos->s, str_error_r(errno, sbuf, sizeof(sbuf)));
				}
//.........这里部分代码省略.........

#ifdef CONFIG_TV
static const m_option_t tvscan_conf[]={
    {"autostart", &stream_tv_defaults.scan, CONF_TYPE_FLAG, 0, 0, 1, NULL},
    {"threshold", &stream_tv_defaults.scan_threshold, CONF_TYPE_INT, CONF_RANGE, 1, 100, NULL},
    {"period", &stream_tv_defaults.scan_period, CONF_TYPE_FLOAT, CONF_RANGE, 0.1, 2.0, NULL},
    {NULL, NULL, 0, 0, 0, 0, NULL}
};
#endif

#define OPT_BASE_STRUCT struct MPOpts

extern const struct m_sub_options image_writer_conf;

static const m_option_t screenshot_conf[] = {
    OPT_SUBSTRUCT("", screenshot_image_opts, image_writer_conf, 0),
    OPT_STRING("template", screenshot_template, 0),
    {0},
};

extern const m_option_t lavc_decode_opts_conf[];
extern const m_option_t ad_lavc_decode_opts_conf[];

extern const m_option_t mp_input_opts[];

const m_option_t mp_opts[] = {
    // handled in command line pre-parser (parser-mpcmd.c)
    {"v", NULL, CONF_TYPE_STORE, CONF_GLOBAL | CONF_NOCFG, 0, 0, NULL},

    // handled in command line parser (parser-mpcmd.c)
    {"playlist", NULL, CONF_TYPE_STRING, CONF_NOCFG | M_OPT_MIN, 1, 0, NULL},
    {"shuffle", NULL, CONF_TYPE_FLAG, CONF_NOCFG, 0, 0, NULL},

static int copy(int argc, const char **argv, const char *prefix)
{
	int retval = 0, force = 0, from_stdin = 0;
	const unsigned char *from_note, *note;
	const char *object_ref;
	unsigned char object[20], from_obj[20];
	struct notes_tree *t;
	const char *rewrite_cmd = NULL;
	struct option options[] = {
		OPT_BOOLEAN('f', "force", &force, "replace existing notes"),
		OPT_BOOLEAN(0, "stdin", &from_stdin, "read objects from stdin"),
		OPT_STRING(0, "for-rewrite", &rewrite_cmd, "command",
			   "load rewriting config for <command> (implies "
			   "--stdin)"),
		OPT_END()
	};

	argc = parse_options(argc, argv, prefix, options, git_notes_copy_usage,
			     0);

	if (from_stdin || rewrite_cmd) {
		if (argc) {
			error("too many parameters");
			usage_with_options(git_notes_copy_usage, options);
		} else {
			return notes_copy_from_stdin(force, rewrite_cmd);
		}
	}

	if (argc < 2) {
		error("too few parameters");
		usage_with_options(git_notes_copy_usage, options);
	}
	if (2 < argc) {
		error("too many parameters");
		usage_with_options(git_notes_copy_usage, options);
	}

	if (get_sha1(argv[0], from_obj))
		die("Failed to resolve '%s' as a valid ref.", argv[0]);

	object_ref = 1 < argc ? argv[1] : "HEAD";

	if (get_sha1(object_ref, object))
		die("Failed to resolve '%s' as a valid ref.", object_ref);

	t = init_notes_check("copy");
	note = get_note(t, object);

	if (note) {
		if (!force) {
			retval = error("Cannot copy notes. Found existing "
				       "notes for object %s. Use '-f' to "
				       "overwrite existing notes",
				       sha1_to_hex(object));
			goto out;
		}
		fprintf(stderr, "Overwriting existing notes for object %s\n",
			sha1_to_hex(object));
	}

	from_note = get_note(t, from_obj);
	if (!from_note) {
		retval = error("Missing notes on source object %s. Cannot "
			       "copy.", sha1_to_hex(from_obj));
		goto out;
	}

	add_note(t, object, from_note, combine_notes_overwrite);
	commit_notes(t, "Notes added by 'git notes copy'");
out:
	free_notes(t);
	return retval;
}

int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
{
	int i;
	const char *format = "%(objectname) %(objecttype)\t%(refname)";
	struct ref_sorting *sorting = NULL, **sorting_tail = &sorting;
	int maxcount = 0, quote_style = 0;
	struct ref_array array;
	struct ref_filter filter;

	struct option opts[] = {
		OPT_BIT('s', "shell", &quote_style,
			N_("quote placeholders suitably for shells"), QUOTE_SHELL),
		OPT_BIT('p', "perl",  &quote_style,
			N_("quote placeholders suitably for perl"), QUOTE_PERL),
		OPT_BIT(0 , "python", &quote_style,
			N_("quote placeholders suitably for python"), QUOTE_PYTHON),
		OPT_BIT(0 , "tcl",  &quote_style,
			N_("quote placeholders suitably for Tcl"), QUOTE_TCL),

		OPT_GROUP(""),
		OPT_INTEGER( 0 , "count", &maxcount, N_("show only <n> matched refs")),
		OPT_STRING(  0 , "format", &format, N_("format"), N_("format to use for the output")),
		OPT_CALLBACK(0 , "sort", sorting_tail, N_("key"),
			    N_("field name to sort on"), &parse_opt_ref_sorting),
		OPT_CALLBACK(0, "points-at", &filter.points_at,
			     N_("object"), N_("print only refs which points at the given object"),
			     parse_opt_object_name),
		OPT_MERGED(&filter, N_("print only refs that are merged")),
		OPT_NO_MERGED(&filter, N_("print only refs that are not merged")),
		OPT_CONTAINS(&filter.with_commit, N_("print only refs which contain the commit")),
		OPT_END(),
	};

	memset(&array, 0, sizeof(array));
	memset(&filter, 0, sizeof(filter));

	parse_options(argc, argv, prefix, opts, for_each_ref_usage, 0);
	if (maxcount < 0) {
		error("invalid --count argument: `%d'", maxcount);
		usage_with_options(for_each_ref_usage, opts);
	}
	if (HAS_MULTI_BITS(quote_style)) {
		error("more than one quoting style?");
		usage_with_options(for_each_ref_usage, opts);
	}
	if (verify_ref_format(format))
		usage_with_options(for_each_ref_usage, opts);

	if (!sorting)
		sorting = ref_default_sorting();

	/* for warn_ambiguous_refs */
	git_config(git_default_config, NULL);

	filter.name_patterns = argv;
	filter.match_as_path = 1;
	filter_refs(&array, &filter, FILTER_REFS_ALL | FILTER_REFS_INCLUDE_BROKEN);
	ref_array_sort(sorting, &array);

	if (!maxcount || array.nr < maxcount)
		maxcount = array.nr;
	for (i = 0; i < maxcount; i++)
		show_ref_array_item(array.items[i], format, quote_style);
	ref_array_clear(&array);
	return 0;
}

static int parse_archive_args(int argc, const char **argv,
		const struct archiver **ar, struct archiver_args *args,
		const char *name_hint, int is_remote)
{
	const char *format = NULL;
	const char *base = NULL;
	const char *remote = NULL;
	const char *exec = NULL;
	const char *output = NULL;
	int compression_level = -1;
	int verbose = 0;
	int i;
	int list = 0;
	int worktree_attributes = 0;
	struct option opts[] = {
		OPT_GROUP(""),
		OPT_STRING(0, "format", &format, N_("fmt"), N_("archive format")),
		OPT_STRING(0, "prefix", &base, N_("prefix"),
			N_("prepend prefix to each pathname in the archive")),
		OPT_STRING('o', "output", &output, N_("file"),
			N_("write the archive to this file")),
		OPT_BOOL(0, "worktree-attributes", &worktree_attributes,
			N_("read .gitattributes in working directory")),
		OPT__VERBOSE(&verbose, N_("report archived files on stderr")),
		OPT__COMPR('0', &compression_level, N_("store only"), 0),
		OPT__COMPR('1', &compression_level, N_("compress faster"), 1),
		OPT__COMPR_HIDDEN('2', &compression_level, 2),
		OPT__COMPR_HIDDEN('3', &compression_level, 3),
		OPT__COMPR_HIDDEN('4', &compression_level, 4),
		OPT__COMPR_HIDDEN('5', &compression_level, 5),
		OPT__COMPR_HIDDEN('6', &compression_level, 6),
		OPT__COMPR_HIDDEN('7', &compression_level, 7),
		OPT__COMPR_HIDDEN('8', &compression_level, 8),
		OPT__COMPR('9', &compression_level, N_("compress better"), 9),
		OPT_GROUP(""),
		OPT_BOOL('l', "list", &list,
			N_("list supported archive formats")),
		OPT_GROUP(""),
		OPT_STRING(0, "remote", &remote, N_("repo"),
			N_("retrieve the archive from remote repository <repo>")),
		OPT_STRING(0, "exec", &exec, N_("command"),
			N_("path to the remote git-upload-archive command")),
		OPT_END()
	};

	argc = parse_options(argc, argv, NULL, opts, archive_usage, 0);

	if (remote)
		die(_("Unexpected option --remote"));
	if (exec)
		die(_("Option --exec can only be used together with --remote"));
	if (output)
		die(_("Unexpected option --output"));

	if (!base)
		base = "";

	if (list) {
		for (i = 0; i < nr_archivers; i++)
			if (!is_remote || archivers[i]->flags & ARCHIVER_REMOTE)
				printf("%s\n", archivers[i]->name);
		exit(0);
	}

	if (!format && name_hint)
		format = archive_format_from_filename(name_hint);
	if (!format)
		format = "tar";

	/* We need at least one parameter -- tree-ish */
	if (argc < 1)
		usage_with_options(archive_usage, opts);
	*ar = lookup_archiver(format);
	if (!*ar || (is_remote && !((*ar)->flags & ARCHIVER_REMOTE)))
		die(_("Unknown archive format '%s'"), format);

	args->compression_level = Z_DEFAULT_COMPRESSION;
	if (compression_level != -1) {
		if ((*ar)->flags & ARCHIVER_WANT_COMPRESSION_LEVELS)
			args->compression_level = compression_level;
		else {
			die(_("Argument not supported for format '%s': -%d"),
					format, compression_level);
		}
	}
	args->verbose = verbose;
	args->base = base;
	args->baselen = strlen(base);
	args->worktree_attributes = worktree_attributes;

	return argc;
}