StringMatcher.h

/* This file is Copyright 2000-2008 Meyer Sound Laboratories Inc.  See the included LICENSE.txt file for details. */

#ifndef MuscleStringMatcher_h
#define MuscleStringMatcher_h

#include <sys/types.h>
#include "util/RefCount.h"
#include "util/String.h"

#ifdef __BEOS__
# if __POWERPC__
#  include "regex/regex/regex.h"  // use included regex if system doesn't provide one
# else
#  include <regex.h>
# endif
#else
# ifdef WIN32
#  include "regex/regex/regex.h"
# else
#  include <regex.h>
# endif
#endif

BEGIN_NAMESPACE(muscle);

class StringMatcher : public RefCountable
{
public:
   StringMatcher();

   StringMatcher(const String & matchString, bool isSimpleFormat = true);
    
   ~StringMatcher();

   status_t SetPattern(const String & expression, bool isSimpleFormat=true);
    
   const String & GetPattern() const {return _pattern;}

   bool IsPatternUnique() const {return (_hasRegexTokens == false)&&(_negate == false)&&(_rangeMin == MUSCLE_NO_LIMIT);}

   bool Match(const char * const matchString) const;
    
   inline bool Match(const String & matchString) const {return Match(matchString());}

   void SetNegate(bool negate) {_negate = negate;}

   bool IsNegate() const {return _negate;}

private:
   bool _regExpValid;
   bool _negate;
   bool _hasRegexTokens;
   String _pattern;
   regex_t _regExp;
   uint32 _rangeMin;
   uint32 _rangeMax;   
}; 

typedef Ref<StringMatcher> StringMatcherRef;

StringMatcherRef::ItemPool * GetStringMatcherPool();

// Some regular expression utility functions

void EscapeRegexTokens(String & str, const char * optTokens = NULL);

void RemoveEscapeChars(String & str);

bool HasRegexTokens(const char * str);

inline bool HasRegexTokens(const String & str) {return HasRegexTokens(str());}

bool IsRegexToken(char c, bool isFirstCharInString);

bool MakeRegexCaseInsensitive(String & str);

END_NAMESPACE(muscle);


#endif

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