RetroZilla/intl/unicharutil/util/nsUnicharUtils.h

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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is Unicode case conversion helpers.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corp..
 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Alec Flett <alecf@netscape.com>
 *
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#ifndef nsUnicharUtils_h__
#define nsUnicharUtils_h__
#ifndef nsAString_h___
#include "nsAString.h"
#endif

#include "nsReadableUtils.h"

#ifndef nsCharTraits_h___
#include "nsCharTraits.h"
#endif

void ToLowerCase( nsAString& );
void ToUpperCase( nsAString& );

void ToLowerCase( nsASingleFragmentString& );
void ToUpperCase( nsASingleFragmentString& );

void ToLowerCase( nsString& );
void ToUpperCase( nsString& );

void ToLowerCase( const nsAString& aSource, nsAString& aDest );
void ToUpperCase( const nsAString& aSource, nsAString& aDest );

class nsCaseInsensitiveStringComparator
    : public nsStringComparator
  {
    public:
      virtual int operator()( const PRUnichar*, const PRUnichar*, PRUint32 aLength ) const;
      virtual int operator()( PRUnichar, PRUnichar ) const;
  };

inline PRBool CaseInsensitiveFindInReadable( const nsAString& aPattern,
                                             nsAString::const_iterator& aSearchStart,
                                             nsAString::const_iterator& aSearchEnd ) {
  return FindInReadable(aPattern, aSearchStart, aSearchEnd,
                        nsCaseInsensitiveStringComparator());
}

inline PRBool CaseInsensitiveFindInReadable( const nsAString& aPattern,
                                             const nsAString& aHay ) {
  nsAString::const_iterator searchBegin, searchEnd;
  return FindInReadable(aPattern, 
                        aHay.BeginReading(searchBegin),
                        aHay.EndReading(searchEnd),
                        nsCaseInsensitiveStringComparator());
}

PRUnichar ToUpperCase(PRUnichar);
PRUnichar ToLowerCase(PRUnichar);

inline PRBool IsUpperCase(PRUnichar c) {
    return ToLowerCase(c) != c;
}

inline PRBool IsLowerCase(PRUnichar c) {
    return ToUpperCase(c) != c;
}

/* (0x3131u <= (u) && (u) <= 0x318eu) => Hangul Compatibility Jamo */
/* (0xac00u <= (u) && (u) <= 0xd7a3u) => Hangul Syllables          */
#define IS_CJ_CHAR(u) \
         ((0x2e80u <= (u) && (u) <= 0x312fu) || \
          (0x3190u <= (u) && (u) <= 0xabffu) || \
          (0xf900u <= (u) && (u) <= 0xfaffu) || \
          (0xff00u <= (u) && (u) <= 0xffefu) )

#endif  /* nsUnicharUtils_h__ */