[linux-block.git] / include / linux / parser.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * linux/include/linux/parser.h
 *
 * Header for lib/parser.c
 * Intended use of these functions is parsing filesystem argument lists,
 * but could potentially be used anywhere else that simple option=arg
 * parsing is required.
 */


/* associates an integer enumerator with a pattern string. */
struct match_token {
	int token;
	const char *pattern;
};

typedef struct match_token match_table_t[];

/* Maximum number of arguments that match_token will find in a pattern */
enum {MAX_OPT_ARGS = 3};

/* Describe the location within a string of a substring */
typedef struct {
	char *from;
	char *to;
} substring_t;

int match_token(char *, const match_table_t table, substring_t args[]);
int match_int(substring_t *, int *result);
int match_u64(substring_t *, u64 *result);
int match_octal(substring_t *, int *result);
int match_hex(substring_t *, int *result);
bool match_wildcard(const char *pattern, const char *str);
size_t match_strlcpy(char *, const substring_t *, size_t);
char *match_strdup(const substring_t *);
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
1da177e4 LT	2	/*
	3	* linux/include/linux/parser.h
	4	*
	5	* Header for lib/parser.c
	6	* Intended use of these functions is parsing filesystem argument lists,
	7	* but could potentially be used anywhere else that simple option=arg
	8	* parsing is required.
	9	*/
	10
	11
	12	/* associates an integer enumerator with a pattern string. */
	13	struct match_token {
	14	int token;
ef4533f8	15	const char *pattern;
1da177e4 LT	16	};
1da177e4 LT	17
1a3f7d98	18	typedef struct match_token match_table_t[];
1da177e4 LT	19
	20	/* Maximum number of arguments that match_token will find in a pattern */
	21	enum {MAX_OPT_ARGS = 3};
	22
	23	/* Describe the location within a string of a substring */
	24	typedef struct {
	25	char *from;
	26	char *to;
	27	} substring_t;
	28
a447c093	29	int match_token(char *, const match_table_t table, substring_t args[]);
1da177e4	30	int match_int(substring_t , int result);
a317178e	31	int match_u64(substring_t , u64 result);
1da177e4 LT	32	int match_octal(substring_t , int result);
1da177e4 LT	33	int match_hex(substring_t , int result);
aace0509	34	bool match_wildcard(const char pattern, const char str);
b32a09db	35	size_t match_strlcpy(char , const substring_t , size_t);
ef4533f8	36	char match_strdup(const substring_t );