LXR linux/include/linux/textsearch

   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