summaryrefslogtreecommitdiff
path: root/parse-options.c
diff options
context:
space:
mode:
Diffstat (limited to 'parse-options.c')
-rw-r--r--parse-options.c216
1 files changed, 148 insertions, 68 deletions
diff --git a/parse-options.c b/parse-options.c
index 6932eaff61..cec74522e5 100644
--- a/parse-options.c
+++ b/parse-options.c
@@ -20,8 +20,9 @@ int optbug(const struct option *opt, const char *reason)
return error("BUG: switch '%c' %s", opt->short_name, reason);
}
-static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt,
- int flags, const char **arg)
+static enum parse_opt_result get_arg(struct parse_opt_ctx_t *p,
+ const struct option *opt,
+ int flags, const char **arg)
{
if (p->opt) {
*arg = p->opt;
@@ -32,7 +33,7 @@ static int get_arg(struct parse_opt_ctx_t *p, const struct option *opt,
p->argc--;
*arg = *++p->argv;
} else
- return opterror(opt, "requires a value", flags);
+ return error(_("%s requires a value"), optname(opt, flags));
return 0;
}
@@ -44,12 +45,12 @@ static void fix_filename(const char *prefix, const char **file)
*file = prefix_filename(prefix, *file);
}
-static int opt_command_mode_error(const struct option *opt,
- const struct option *all_opts,
- int flags)
+static enum parse_opt_result opt_command_mode_error(
+ const struct option *opt,
+ const struct option *all_opts,
+ int flags)
{
const struct option *that;
- struct strbuf message = STRBUF_INIT;
struct strbuf that_name = STRBUF_INIT;
/*
@@ -67,34 +68,34 @@ static int opt_command_mode_error(const struct option *opt,
strbuf_addf(&that_name, "--%s", that->long_name);
else
strbuf_addf(&that_name, "-%c", that->short_name);
- strbuf_addf(&message, ": incompatible with %s", that_name.buf);
+ error(_("%s is incompatible with %s"),
+ optname(opt, flags), that_name.buf);
strbuf_release(&that_name);
- opterror(opt, message.buf, flags);
- strbuf_release(&message);
- return -1;
+ return PARSE_OPT_ERROR;
}
- return opterror(opt, ": incompatible with something else", flags);
+ return error(_("%s : incompatible with something else"),
+ optname(opt, flags));
}
-static int get_value(struct parse_opt_ctx_t *p,
- const struct option *opt,
- const struct option *all_opts,
- int flags)
+static enum parse_opt_result get_value(struct parse_opt_ctx_t *p,
+ const struct option *opt,
+ const struct option *all_opts,
+ int flags)
{
const char *s, *arg;
const int unset = flags & OPT_UNSET;
int err;
if (unset && p->opt)
- return opterror(opt, "takes no value", flags);
+ return error(_("%s takes no value"), optname(opt, flags));
if (unset && (opt->flags & PARSE_OPT_NONEG))
- return opterror(opt, "isn't available", flags);
+ return error(_("%s isn't available"), optname(opt, flags));
if (!(flags & OPT_SHORT) && p->opt && (opt->flags & PARSE_OPT_NOARG))
- return opterror(opt, "takes no value", flags);
+ return error(_("%s takes no value"), optname(opt, flags));
switch (opt->type) {
case OPTION_LOWLEVEL_CALLBACK:
- return (*(parse_opt_ll_cb *)opt->callback)(p, opt, unset);
+ return opt->ll_callback(p, opt, NULL, unset);
case OPTION_BIT:
if (unset)
@@ -110,6 +111,13 @@ static int get_value(struct parse_opt_ctx_t *p,
*(int *)opt->value &= ~opt->defval;
return 0;
+ case OPTION_BITOP:
+ if (unset)
+ BUG("BITOP can't have unset form");
+ *(int *)opt->value &= ~opt->extra;
+ *(int *)opt->value |= opt->defval;
+ return 0;
+
case OPTION_COUNTUP:
if (*(int *)opt->value < 0)
*(int *)opt->value = 0;
@@ -153,16 +161,27 @@ static int get_value(struct parse_opt_ctx_t *p,
return err;
case OPTION_CALLBACK:
+ {
+ const char *p_arg = NULL;
+ int p_unset;
+
if (unset)
- return (*opt->callback)(opt, NULL, 1) ? (-1) : 0;
- if (opt->flags & PARSE_OPT_NOARG)
- return (*opt->callback)(opt, NULL, 0) ? (-1) : 0;
- if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
- return (*opt->callback)(opt, NULL, 0) ? (-1) : 0;
- if (get_arg(p, opt, flags, &arg))
+ p_unset = 1;
+ else if (opt->flags & PARSE_OPT_NOARG)
+ p_unset = 0;
+ else if (opt->flags & PARSE_OPT_OPTARG && !p->opt)
+ p_unset = 0;
+ else if (get_arg(p, opt, flags, &arg))
return -1;
- return (*opt->callback)(opt, arg, 0) ? (-1) : 0;
-
+ else {
+ p_unset = 0;
+ p_arg = arg;
+ }
+ if (opt->callback)
+ return (*opt->callback)(opt, p_arg, p_unset) ? (-1) : 0;
+ else
+ return (*opt->ll_callback)(p, opt, p_arg, p_unset);
+ }
case OPTION_INTEGER:
if (unset) {
*(int *)opt->value = 0;
@@ -176,7 +195,8 @@ static int get_value(struct parse_opt_ctx_t *p,
return -1;
*(int *)opt->value = strtol(arg, (char **)&s, 10);
if (*s)
- return opterror(opt, "expects a numerical value", flags);
+ return error(_("%s expects a numerical value"),
+ optname(opt, flags));
return 0;
case OPTION_MAGNITUDE:
@@ -191,17 +211,18 @@ static int get_value(struct parse_opt_ctx_t *p,
if (get_arg(p, opt, flags, &arg))
return -1;
if (!git_parse_ulong(arg, opt->value))
- return opterror(opt,
- "expects a non-negative integer value with an optional k/m/g suffix",
- flags);
+ return error(_("%s expects a non-negative integer value"
+ " with an optional k/m/g suffix"),
+ optname(opt, flags));
return 0;
default:
- die("should not happen, someone must be hit on the forehead");
+ BUG("opt->type %d should not happen", opt->type);
}
}
-static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *options)
+static enum parse_opt_result parse_short_opt(struct parse_opt_ctx_t *p,
+ const struct option *options)
{
const struct option *all_opts = options;
const struct option *numopt = NULL;
@@ -228,15 +249,19 @@ static int parse_short_opt(struct parse_opt_ctx_t *p, const struct option *optio
len++;
arg = xmemdupz(p->opt, len);
p->opt = p->opt[len] ? p->opt + len : NULL;
- rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0;
+ if (numopt->callback)
+ rc = (*numopt->callback)(numopt, arg, 0) ? (-1) : 0;
+ else
+ rc = (*numopt->ll_callback)(p, numopt, arg, 0);
free(arg);
return rc;
}
- return -2;
+ return PARSE_OPT_UNKNOWN;
}
-static int parse_long_opt(struct parse_opt_ctx_t *p, const char *arg,
- const struct option *options)
+static enum parse_opt_result parse_long_opt(
+ struct parse_opt_ctx_t *p, const char *arg,
+ const struct option *options)
{
const struct option *all_opts = options;
const char *arg_end = strchrnul(arg, '=');
@@ -257,15 +282,17 @@ again:
if (!rest)
continue;
if (*rest == '=')
- return opterror(options, "takes no value", flags);
+ return error(_("%s takes no value"),
+ optname(options, flags));
if (*rest)
continue;
p->out[p->cpidx++] = arg - 2;
- return 0;
+ return PARSE_OPT_DONE;
}
if (!rest) {
/* abbreviated? */
- if (!strncmp(long_name, arg, arg_end - arg)) {
+ if (!(p->flags & PARSE_OPT_KEEP_UNKNOWN) &&
+ !strncmp(long_name, arg, arg_end - arg)) {
is_abbreviated:
if (abbrev_option) {
/*
@@ -318,18 +345,18 @@ is_abbreviated:
}
if (ambiguous_option) {
- error("Ambiguous option: %s "
- "(could be --%s%s or --%s%s)",
+ error(_("ambiguous option: %s "
+ "(could be --%s%s or --%s%s)"),
arg,
(ambiguous_flags & OPT_UNSET) ? "no-" : "",
ambiguous_option->long_name,
(abbrev_flags & OPT_UNSET) ? "no-" : "",
abbrev_option->long_name);
- return -3;
+ return PARSE_OPT_HELP;
}
if (abbrev_option)
return get_value(p, abbrev_option, all_opts, abbrev_flags);
- return -2;
+ return PARSE_OPT_UNKNOWN;
}
static int parse_nodash_opt(struct parse_opt_ctx_t *p, const char *arg,
@@ -352,7 +379,7 @@ static void check_typos(const char *arg, const struct option *options)
return;
if (starts_with(arg, "no-")) {
- error ("did you mean `--%s` (with two dashes ?)", arg);
+ error(_("did you mean `--%s` (with two dashes ?)"), arg);
exit(129);
}
@@ -360,7 +387,7 @@ static void check_typos(const char *arg, const struct option *options)
if (!options->long_name)
continue;
if (starts_with(options->long_name, arg)) {
- error ("did you mean `--%s` (with two dashes ?)", arg);
+ error(_("did you mean `--%s` (with two dashes ?)"), arg);
exit(129);
}
}
@@ -399,6 +426,19 @@ static void parse_options_check(const struct option *opts)
if ((opts->flags & PARSE_OPT_OPTARG) ||
!(opts->flags & PARSE_OPT_NOARG))
err |= optbug(opts, "should not accept an argument");
+ break;
+ case OPTION_CALLBACK:
+ if (!opts->callback && !opts->ll_callback)
+ BUG("OPTION_CALLBACK needs one callback");
+ if (opts->callback && opts->ll_callback)
+ BUG("OPTION_CALLBACK can't have two callbacks");
+ break;
+ case OPTION_LOWLEVEL_CALLBACK:
+ if (!opts->ll_callback)
+ BUG("OPTION_LOWLEVEL_CALLBACK needs a callback");
+ if (opts->callback)
+ BUG("OPTION_LOWLEVEL_CALLBACK needs no high level callback");
+ break;
default:
; /* ok. (usually accepts an argument) */
}
@@ -415,15 +455,24 @@ void parse_options_start(struct parse_opt_ctx_t *ctx,
const struct option *options, int flags)
{
memset(ctx, 0, sizeof(*ctx));
- ctx->argc = ctx->total = argc - 1;
- ctx->argv = argv + 1;
- ctx->out = argv;
+ ctx->argc = argc;
+ ctx->argv = argv;
+ if (!(flags & PARSE_OPT_ONE_SHOT)) {
+ ctx->argc--;
+ ctx->argv++;
+ }
+ ctx->total = ctx->argc;
+ ctx->out = argv;
ctx->prefix = prefix;
ctx->cpidx = ((flags & PARSE_OPT_KEEP_ARGV0) != 0);
ctx->flags = flags;
if ((flags & PARSE_OPT_KEEP_UNKNOWN) &&
- (flags & PARSE_OPT_STOP_AT_NON_OPTION))
- die("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together");
+ (flags & PARSE_OPT_STOP_AT_NON_OPTION) &&
+ !(flags & PARSE_OPT_ONE_SHOT))
+ BUG("STOP_AT_NON_OPTION and KEEP_UNKNOWN don't go together");
+ if ((flags & PARSE_OPT_ONE_SHOT) &&
+ (flags & PARSE_OPT_KEEP_ARGV0))
+ BUG("Can't keep argv0 if you don't have it");
parse_options_check(options);
}
@@ -535,6 +584,10 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
for (; ctx->argc; ctx->argc--, ctx->argv++) {
const char *arg = ctx->argv[0];
+ if (ctx->flags & PARSE_OPT_ONE_SHOT &&
+ ctx->argc != ctx->total)
+ break;
+
if (*arg != '-' || !arg[1]) {
if (parse_nodash_opt(ctx, arg, options) == 0)
continue;
@@ -555,22 +608,28 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
if (arg[1] != '-') {
ctx->opt = arg + 1;
switch (parse_short_opt(ctx, options)) {
- case -1:
+ case PARSE_OPT_ERROR:
return PARSE_OPT_ERROR;
- case -2:
+ case PARSE_OPT_UNKNOWN:
if (ctx->opt)
check_typos(arg + 1, options);
if (internal_help && *ctx->opt == 'h')
goto show_usage;
goto unknown;
+ case PARSE_OPT_NON_OPTION:
+ case PARSE_OPT_HELP:
+ case PARSE_OPT_COMPLETE:
+ BUG("parse_short_opt() cannot return these");
+ case PARSE_OPT_DONE:
+ break;
}
if (ctx->opt)
check_typos(arg + 1, options);
while (ctx->opt) {
switch (parse_short_opt(ctx, options)) {
- case -1:
+ case PARSE_OPT_ERROR:
return PARSE_OPT_ERROR;
- case -2:
+ case PARSE_OPT_UNKNOWN:
if (internal_help && *ctx->opt == 'h')
goto show_usage;
@@ -582,6 +641,12 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
ctx->argv[0] = xstrdup(ctx->opt - 1);
*(char *)ctx->argv[0] = '-';
goto unknown;
+ case PARSE_OPT_NON_OPTION:
+ case PARSE_OPT_COMPLETE:
+ case PARSE_OPT_HELP:
+ BUG("parse_short_opt() cannot return these");
+ case PARSE_OPT_DONE:
+ break;
}
}
continue;
@@ -600,15 +665,22 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
if (internal_help && !strcmp(arg + 2, "help"))
goto show_usage;
switch (parse_long_opt(ctx, arg + 2, options)) {
- case -1:
+ case PARSE_OPT_ERROR:
return PARSE_OPT_ERROR;
- case -2:
+ case PARSE_OPT_UNKNOWN:
goto unknown;
- case -3:
+ case PARSE_OPT_HELP:
goto show_usage;
+ case PARSE_OPT_NON_OPTION:
+ case PARSE_OPT_COMPLETE:
+ BUG("parse_long_opt() cannot return these");
+ case PARSE_OPT_DONE:
+ break;
}
continue;
unknown:
+ if (ctx->flags & PARSE_OPT_ONE_SHOT)
+ break;
if (!(ctx->flags & PARSE_OPT_KEEP_UNKNOWN))
return PARSE_OPT_UNKNOWN;
ctx->out[ctx->cpidx++] = ctx->argv[0];
@@ -622,6 +694,9 @@ unknown:
int parse_options_end(struct parse_opt_ctx_t *ctx)
{
+ if (ctx->flags & PARSE_OPT_ONE_SHOT)
+ return ctx->total - ctx->argc;
+
MOVE_ARRAY(ctx->out + ctx->cpidx, ctx->argv, ctx->argc);
ctx->out[ctx->cpidx + ctx->argc] = NULL;
return ctx->cpidx + ctx->argc;
@@ -645,11 +720,11 @@ int parse_options(int argc, const char **argv, const char *prefix,
break;
default: /* PARSE_OPT_UNKNOWN */
if (ctx.argv[0][1] == '-') {
- error("unknown option `%s'", ctx.argv[0] + 2);
+ error(_("unknown option `%s'"), ctx.argv[0] + 2);
} else if (isascii(*ctx.opt)) {
- error("unknown switch `%c'", *ctx.opt);
+ error(_("unknown switch `%c'"), *ctx.opt);
} else {
- error("unknown non-ascii option in string: `%s'",
+ error(_("unknown non-ascii option in string: `%s'"),
ctx.argv[0]);
}
usage_with_options(usagestr, options);
@@ -775,12 +850,17 @@ void NORETURN usage_msg_opt(const char *msg,
usage_with_options(usagestr, options);
}
-#undef opterror
-int opterror(const struct option *opt, const char *reason, int flags)
+const char *optname(const struct option *opt, int flags)
{
+ static struct strbuf sb = STRBUF_INIT;
+
+ strbuf_reset(&sb);
if (flags & OPT_SHORT)
- return error("switch `%c' %s", opt->short_name, reason);
- if (flags & OPT_UNSET)
- return error("option `no-%s' %s", opt->long_name, reason);
- return error("option `%s' %s", opt->long_name, reason);
+ strbuf_addf(&sb, "switch `%c'", opt->short_name);
+ else if (flags & OPT_UNSET)
+ strbuf_addf(&sb, "option `no-%s'", opt->long_name);
+ else
+ strbuf_addf(&sb, "option `%s'", opt->long_name);
+
+ return sb.buf;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-23 01:20:57 +0000