1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __LINUX_TEXTSEARCH_FSM_H
3#define __LINUX_TEXTSEARCH_FSM_H
4
5#include <linux/types.h>
6
7enum {
8 TS_FSM_SPECIFIC, /* specific character */
9 TS_FSM_WILDCARD, /* any character */
10 TS_FSM_DIGIT, /* isdigit() */
11 TS_FSM_XDIGIT, /* isxdigit() */
12 TS_FSM_PRINT, /* isprint() */
13 TS_FSM_ALPHA, /* isalpha() */
14 TS_FSM_ALNUM, /* isalnum() */
15 TS_FSM_ASCII, /* isascii() */
16 TS_FSM_CNTRL, /* iscntrl() */
17 TS_FSM_GRAPH, /* isgraph() */
18 TS_FSM_LOWER, /* islower() */
19 TS_FSM_UPPER, /* isupper() */
20 TS_FSM_PUNCT, /* ispunct() */
21 TS_FSM_SPACE, /* isspace() */
22 __TS_FSM_TYPE_MAX,
23};
24#define TS_FSM_TYPE_MAX (__TS_FSM_TYPE_MAX - 1)
25
26enum {
27 TS_FSM_SINGLE, /* 1 occurrence */
28 TS_FSM_PERHAPS, /* 1 or 0 occurrence */
29 TS_FSM_ANY, /* 0..n occurrences */
30 TS_FSM_MULTI, /* 1..n occurrences */
31 TS_FSM_HEAD_IGNORE, /* 0..n ignored occurrences at head */
32 __TS_FSM_RECUR_MAX,
33};
34#define TS_FSM_RECUR_MAX (__TS_FSM_RECUR_MAX - 1)
35
36/**
37 * struct ts_fsm_token - state machine token (state)
38 * @type: type of token
39 * @recur: number of recurrences
40 * @value: character value for TS_FSM_SPECIFIC
41 */
42struct ts_fsm_token
43{
44 __u16 type;
45 __u8 recur;
46 __u8 value;
47};
48
49#endif
50