Module: wine Branch: master Commit: 9c4cbde78fa6357aec1c235265d92ea2cdbb69e7 URL: https://source.winehq.org/git/wine.git/?a=commit;h=9c4cbde78fa6357aec1c23526...
Author: Alexandre Julliard julliard@winehq.org Date: Tue Oct 5 11:51:57 2021 +0200
tools: Implement a replacement for getopt_long().
Signed-off-by: Alexandre Julliard julliard@winehq.org
---
tools/tools.h | 110 ++++++++++++++++++++++++++++++++++++++++++++++++++ tools/winedump/main.c | 6 +-- 2 files changed, 113 insertions(+), 3 deletions(-)
diff --git a/tools/tools.h b/tools/tools.h index 8b658079952..f013bf7a510 100644 --- a/tools/tools.h +++ b/tools/tools.h @@ -310,4 +310,114 @@ static inline int make_temp_file( const char *prefix, const char *suffix, char * exit(1); }
+ +/* command-line option parsing */ +/* partly based on the Glibc getopt() implementation */ + +struct long_option +{ + const char *name; + int has_arg; + int val; +}; + +static inline struct strarray parse_options( int argc, char **argv, const char *short_opts, + const struct long_option *long_opts, int long_only, + void (*callback)( int, char* ) ) +{ + struct strarray ret = empty_strarray; + const char *flag; + char *start, *end; + int i; + +#define OPT_ERR(fmt) { callback( '?', strmake( fmt, argv[1] )); continue; } + + for (i = 1; i < argc; i++) + { + if (argv[i][0] != '-' || !argv[i][1]) /* not an option */ + { + strarray_add( &ret, argv[i] ); + continue; + } + if (!strcmp( argv[i], "--" )) + { + /* add remaining args */ + while (++i < argc) strarray_add( &ret, argv[i] ); + break; + } + start = argv[i] + 1 + (argv[i][1] == '-'); + + if (argv[i][1] == '-' || (long_only && (argv[i][2] || !strchr( short_opts, argv[i][1] )))) + { + /* handle long option */ + const struct long_option *opt, *found = NULL; + int count = 0; + + if (!(end = strchr( start, '=' ))) end = start + strlen(start); + for (opt = long_opts; opt && opt->name; opt++) + { + if (strncmp( opt->name, start, end - start )) continue; + if (!opt->name[end - start]) /* exact match */ + { + found = opt; + count = 1; + break; + } + if (!found) + { + found = opt; + count++; + } + else if (long_only || found->has_arg != opt->has_arg || found->val != opt->val) + { + count++; + } + } + + if (count > 1) OPT_ERR( "option '%s' is ambiguous" ); + + if (found) + { + if (*end) + { + if (!found->has_arg) OPT_ERR( "argument not allowed in '%s'" ); + end++; /* skip '=' */ + } + else if (found->has_arg == 1) + { + if (i == argc - 1) OPT_ERR( "option '%s' requires an argument" ); + end = argv[++i]; + } + else end = NULL; + + callback( found->val, end ); + continue; + } + if (argv[i][1] == '-' || !long_only || !strchr( short_opts, argv[i][1] )) + OPT_ERR( "unrecognized option '%s'" ); + } + + /* handle short option */ + for ( ; *start; start++) + { + if (!(flag = strchr( short_opts, *start ))) OPT_ERR( "invalid option '%s'" ); + if (flag[1] == ':') + { + end = start + 1; + if (!*end) end = NULL; + if (flag[2] != ':' && !end) + { + if (i == argc - 1) OPT_ERR( "option '%s' requires an argument" ); + end = argv[++i]; + } + callback( *start, end ); + break; + } + callback( *start, NULL ); + } + } + return ret; +#undef OPT_ERR +} + #endif /* __WINE_TOOLS_H */ diff --git a/tools/winedump/main.c b/tools/winedump/main.c index 818180e6d8c..b60868d0d89 100644 --- a/tools/winedump/main.c +++ b/tools/winedump/main.c @@ -257,11 +257,11 @@ void do_usage (const char *arg)
/******************************************************************* - * parse_options + * parse_cmdline * * Parse options from the argv array */ -static void parse_options (char *argv[]) +static void parse_cmdline (char *argv[]) { const struct my_option *opt; char *const *ptr; @@ -388,7 +388,7 @@ int main (int argc, char *argv[]) globals.input_name = NULL; globals.dumpsect = NULL;
- parse_options (argv); + parse_cmdline (argv);
memset (&symbol, 0, sizeof (parsed_symbol));
-
Alexandre Julliard