2 * Copyright (C) 2021 Simon Marchi <simon.marchi@efficios.com>
4 * SPDX-License-Identifier: GPL-2.0-only
8 #ifndef COMMON_ARGPAR_UTILS_H
9 #define COMMON_ARGPAR_UTILS_H
13 #include <common/macros.h>
14 #include <common/argpar/argpar.h>
15 #include <common/string-utils/format.h>
17 enum parse_next_item_status
19 PARSE_NEXT_ITEM_STATUS_OK
= 0,
20 PARSE_NEXT_ITEM_STATUS_END
= 1,
21 PARSE_NEXT_ITEM_STATUS_ERROR
= -1,
25 * Parse the next argpar item using `iter`.
27 * The item in `*item` is always freed and cleared on entry.
29 * If an item is parsed successfully, return the new item in `*item` and return
30 * PARSE_NEXT_ITEM_STATUS_OK.
32 * If the end of the argument list is reached, return
33 * PARSE_NEXT_ITEM_STATUS_END.
35 * On error, print a descriptive error message and return
36 * PARSE_NEXT_ITEM_STATUS_ERROR. If `context_fmt` is non-NULL, it is formatted
37 * using the following arguments and prepended to the error message.
39 * If `unknown_opt_is_error` is true, an unknown option is considered an error.
40 * Otherwise, it is considered as the end of the argument list.
42 LTTNG_HIDDEN
ATTR_FORMAT_PRINTF(5, 6)
43 enum parse_next_item_status
parse_next_item(struct argpar_iter
*iter
,
44 const struct argpar_item
**item
, const char **argv
,
45 bool unknown_opt_is_error
, const char *context_fmt
, ...);