headers/private/file_systems/QueryParserUtils.h

   1 /*
   2  * Copyright 2001-2014, Axel Dörfler, axeld@pinc-software.de.
   3  * Copyright 2010, Clemens Zeidler <haiku@clemens-zeidler.de>
   4  * Copyright 2011, Ingo Weinhold, ingo_weinhold@gmx.de.
   5  * This file may be used under the terms of the MIT License.
   6  */
   7 #ifndef _FILE_SYSTEMS_QUERY_PARSER_UTILS_H
   8 #define _FILE_SYSTEMS_QUERY_PARSER_UTILS_H
   9
  10
  11 #include <sys/cdefs.h>
  12
  13 #ifdef FS_SHELL
  14 #       include <new>
  15
  16 #       include "fssh_api_wrapper.h"
  17 #       include "fssh_auto_deleter.h"
  18 #else
  19 #       include <SupportDefs.h>
  20 #endif  // !FS_SHELL
  21
  22
  23 namespace QueryParser {
  24
  25
  26 enum match {
  27         NO_MATCH = 0,
  28         MATCH_OK = 1,
  29
  30         MATCH_BAD_PATTERN = -2,
  31         MATCH_INVALID_CHARACTER
  32 };
  33
  34 // return values from isValidPattern()
  35 enum {
  36         PATTERN_INVALID_ESCAPE = -3,
  37         PATTERN_INVALID_RANGE,
  38         PATTERN_INVALID_SET
  39 };
  40
  41
  42 __BEGIN_DECLS
  43
  44
  45 void            skipWhitespace(char** expr, int32 skip = 0);
  46 void            skipWhitespaceReverse(char** expr, char* stop);
  47 int                     compareKeys(uint32 type, const void* key1, size_t length1,
  48                                 const void* key2, size_t length2);
  49 uint32          utf8ToUnicode(char** string);
  50 int32           getFirstPatternSymbol(char* string);
  51 status_t        isValidPattern(char* pattern);
  52 status_t        matchString(char* pattern, char* string);
  53
  54
  55 __END_DECLS
  56
  57
  58 static inline bool
  59 isPattern(char* string)
  60 {
  61         return getFirstPatternSymbol(string) >= 0 ? true : false;
  62 }
  63
  64
  65 }       // namespace QueryParser
  66
  67
  68 #endif  // _FILE_SYSTEMS_QUERY_PARSER_UTILS_H