LXR linux/include/linux/parser.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   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#ifndef _LINUX_PARSER_H
  11#define _LINUX_PARSER_H
  12
  13/* associates an integer enumerator with a pattern string. */
  14struct match_token {
  15        int token;
  16        const char *pattern;
  17};
  18
  19typedef struct match_token match_table_t[];
  20
  21/* Maximum number of arguments that match_token will find in a pattern */
  22enum {MAX_OPT_ARGS = 3};
  23
  24/* Describe the location within a string of a substring */
  25typedef struct {
  26        char *from;
  27        char *to;
  28} substring_t;
  29
  30int match_token(char *, const match_table_t table, substring_t args[]);
  31int match_int(substring_t *, int *result);
  32int match_uint(substring_t *s, unsigned int *result);
  33int match_u64(substring_t *, u64 *result);
  34int match_octal(substring_t *, int *result);
  35int match_hex(substring_t *, int *result);
  36bool match_wildcard(const char *pattern, const char *str);
  37size_t match_strlcpy(char *, const substring_t *, size_t);
  38char *match_strdup(const substring_t *);
  39
  40#endif /* _LINUX_PARSER_H */
  41