static int
_find_foreach_fn(void *data, size_t data_size, void *arg) {
cfuopt_list_entry_t *opt = (cfuopt_list_entry_t *)data;
_find_foreach_ds *ds = (_find_foreach_ds *)arg;
size_t this_size = 0;
cfulist_t *param_full_list = NULL;
char *desc = NULL;
_cfuopt_desc *desc_ds = CFU_OPT_ALLOC(_cfuopt_desc, 1);
if (!data) return 0;
param_full_list = cfulist_map(opt->param_names, _param_map_fn, opt);
desc = cfulist_join(param_full_list, ", ");
data_size = data_size;
cfulist_destroy_with_free_fn(param_full_list, _simple_list_free_fn);
desc_ds->desc = desc;
desc_ds->entry = opt;
cfulist_push(ds->desc_list, desc_ds);
this_size = strlen(desc);
if (this_size > ds->max_size) ds->max_size = this_size;
return 0;
}
extern void
cfuopt_add_entry(cfuopt_t *context, const char *opt_str, void *arg_data,
const char *description, const char *arg_description) {
cfuopt_list_entry_t *entry = CFU_OPT_ALLOC(cfuopt_list_entry_t, 1);
cfulist_t *param_list = NULL;
cfuopt_arg_t arg_type = cfuopt_arg_invalid;
struct _add_entry_struct entry_struct;
int required = 0;
parse_opt_str(opt_str, ¶m_list, &arg_type, &required);
entry->arg_data = arg_data;
entry->description = description;
entry->arg_description = arg_description;
entry->arg_type = arg_type;
entry->required = required;
entry->param_names = param_list;
cfulist_push(context->option_list, (void *)entry);
entry_struct.entry = entry;
entry_struct.context = context;
cfulist_foreach(param_list, _add_to_option_map, &entry_struct);
}
/*
Parse a string like Perl's Getopt::Long takes, e.g.
"verbose|v!",
"file|f=s",
"scale:f",
"count:i"
! means boolean flag
= means required
: means optional
s means arbitrary string (C string)
f means float (double)
i means integer (long)
*/
static void
parse_opt_str(const char *opt_str, cfulist_t **param_list, cfuopt_arg_t *type, int *is_required) {
cfulist_t *params = cfulist_new();
size_t num_names = 0;
char **opt_names = cfustring_c_str_split(opt_str, &num_names, 0, "|", NULL);
char *last_opt = NULL;
char *pos = NULL;
size_t opt_len = 0;
cfuopt_arg_t arg_type = cfuopt_arg_invalid;
int required = 0;
size_t i = 0;
if (num_names == 0) {
cfulist_destroy(params);
free(opt_names);
return;
}
last_opt = opt_names[num_names - 1];
opt_len = strlen(last_opt);
if ( (pos = memchr((void *)last_opt, '=', opt_len)) ) {
char *tmp = pos;
required = 1;
tmp++;
if (*tmp) {
CFUOPT_SET_TYPE(*tmp, arg_type);
*pos = '\000';
}
else {
arg_type = cfuopt_arg_invalid;
}
}
else if ( (pos = memchr((void *)last_opt, ':', opt_len)) ) {
char *tmp = pos;
required = 0;
tmp++;
if (*tmp) {
CFUOPT_SET_TYPE(*tmp, arg_type);
*pos = '\000';
}
else {
arg_type = cfuopt_arg_invalid;
}
}
else if ( (pos = memchr((void *)last_opt, '!', opt_len)) ) {
required = 0;
arg_type = cfuopt_arg_bool;
*pos = '\000';
}
for (i = 0; i < num_names; i++) {
cfulist_push(params, opt_names[i]);
}
free(opt_names);
*type = arg_type;
*param_list = params;
*is_required = required;
}
static int
_get_help_lines(void *data, size_t data_size, void *arg) {
_cfuopt_desc *desc_ds = (_cfuopt_desc *)data;
_help_lines_ds *ds = (_help_lines_ds *)arg;
char *left_col = NULL;
const char *desc = NULL;
char *line = NULL;
data_size = data_size;
left_col = desc_ds->desc;
if (!left_col) return 0;
desc = desc_ds->entry->description;
if (!desc) desc = "test desc";
line = cfustring_sprintf_c_str(ds->fmt, left_col, desc);
cfulist_push(ds->list, (void *)line);
return 0;
}
int
cfulist_enqueue(cfulist_t *list, void *data) {
return cfulist_push(list, data);
}
extern void
cfuopt_parse(cfuopt_t *context, int *argc, char ***argv, char **error) {
int i = 0;
char **args = *argv;
int is_long_opt = 0;
int is_short_opt = 0;
int is_data = 0;
int is_end_of_opt = 0;
char *parsed_arg = NULL;
const char *value = NULL;
cfuopt_list_entry_t *entry = NULL;
size_t extra_count = 0;
error = error;
if (!context) return;
if (*argc < 1) return;
context->progname = cfustring_dup_c_str(args[0]);
if (*argc < 2) return;
for (i = 1; i < *argc; i++) {
char *cur_arg = args[i];
entry = NULL;
value = NULL;
if (parsed_arg) free(parsed_arg);
parsed_arg = NULL;
check_arg(cur_arg, &is_long_opt, &is_short_opt, &is_data, &is_end_of_opt, &parsed_arg,
&value);
if (is_long_opt || is_short_opt) {
entry = (cfuopt_list_entry_t *)cfuhash_get(context->option_map, parsed_arg);
if (parsed_arg) free(parsed_arg);
parsed_arg = NULL;
}
else if (is_end_of_opt) {
if (parsed_arg) free(parsed_arg);
parsed_arg = NULL;
i++;
for (; i < *argc; i++) {
cfulist_push(context->extra, args[i]);
}
break;
}
else if (is_data) {
if (parsed_arg) free(parsed_arg);
parsed_arg = NULL;
cfulist_push(context->extra, args[i]);
continue;
}
if (!entry) {
/* FIXME: return error here if need be */
continue;
}
switch (entry->arg_type) {
case cfuopt_arg_bool:
_set_entry_val(entry, "1");
break;
case cfuopt_arg_string:
case cfuopt_arg_int:
case cfuopt_arg_float:
if (value) {
if (entry->arg_data) {
_set_entry_val(entry, value);
}
} else {
i++;
if (i >= *argc) break; /* FIXME: set up error msg here */
check_arg(args[i], &is_long_opt, &is_short_opt, &is_data, &is_end_of_opt,
&parsed_arg, &value);
if (!is_data) {
i--;
break; /* FIXME: set up error msg here */
}
_set_entry_val(entry, parsed_arg);
free(parsed_arg);
parsed_arg = NULL;
}
break;
case cfuopt_arg_string_array:
break;
case cfuopt_arg_invalid:
/* FIXME: really should produce an error msg here */
break;
default:
break;
}
}
extra_count = cfulist_num_entries(context->extra);
*argc = extra_count + 1;
{
_update_extra_ds ds;
size_t update_count = 0;
ds.count = 1;
ds.argv = args;
update_count = cfulist_foreach(context->extra, _update_extra, (void *)&ds);
assert(update_count + 1 == (unsigned)*argc);
}
}