LCOV - code coverage report
Current view: directory - objdir/dist/include - nsUnicharUtils.h (source / functions) Found Hit Coverage
Test: app.info Lines: 11 6 54.5 %
Date: 2012-06-02 Functions: 5 2 40.0 %

       1                 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is Unicode case conversion helpers.
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corp..
      19                 :  * Portions created by the Initial Developer are Copyright (C) 2002
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *   Alec Flett <alecf@netscape.com>
      24                 :  *   Benjamin Smedberg <benjamin@smedbergs.us>
      25                 :  *
      26                 :  * Alternatively, the contents of this file may be used under the terms of
      27                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      28                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      29                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      30                 :  * of those above. If you wish to allow use of your version of this file only
      31                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      32                 :  * use your version of this file under the terms of the MPL, indicate your
      33                 :  * decision by deleting the provisions above and replace them with the notice
      34                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      35                 :  * the provisions above, a recipient may use your version of this file under
      36                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      37                 :  *
      38                 :  * ***** END LICENSE BLOCK ***** */
      39                 : 
      40                 : #ifndef nsUnicharUtils_h__
      41                 : #define nsUnicharUtils_h__
      42                 : 
      43                 : #include "nsStringGlue.h"
      44                 : 
      45                 : /* (0x3131u <= (u) && (u) <= 0x318eu) => Hangul Compatibility Jamo */
      46                 : /* (0xac00u <= (u) && (u) <= 0xd7a3u) => Hangul Syllables          */
      47                 : #define IS_CJ_CHAR(u) \
      48                 :   ((0x2e80u <= (u) && (u) <= 0x312fu) || \
      49                 :    (0x3190u <= (u) && (u) <= 0xabffu) || \
      50                 :    (0xf900u <= (u) && (u) <= 0xfaffu) || \
      51                 :    (0xff00u <= (u) && (u) <= 0xffefu) )
      52                 : 
      53                 : void ToLowerCase(nsAString&);
      54                 : void ToUpperCase(nsAString&);
      55                 : 
      56                 : void ToLowerCase(const nsAString& aSource, nsAString& aDest);
      57                 : void ToUpperCase(const nsAString& aSource, nsAString& aDest);
      58                 : 
      59                 : PRUnichar ToLowerCase(PRUnichar);
      60                 : PRUnichar ToUpperCase(PRUnichar);
      61                 : PRUnichar ToTitleCase(PRUnichar);
      62                 : 
      63                 : void ToLowerCase(const PRUnichar*, PRUnichar*, PRUint32);
      64                 : void ToUpperCase(const PRUnichar*, PRUnichar*, PRUint32);
      65                 : 
      66               0 : inline bool IsUpperCase(PRUnichar c) {
      67               0 :   return ToLowerCase(c) != c;
      68                 : }
      69                 : 
      70                 : inline bool IsLowerCase(PRUnichar c) {
      71                 :   return ToUpperCase(c) != c;
      72                 : }
      73                 : 
      74                 : #ifdef MOZILLA_INTERNAL_API
      75                 : 
      76                 : class nsCaseInsensitiveStringComparator : public nsStringComparator
      77           22662 : {
      78                 : public:
      79                 :   virtual PRInt32 operator() (const PRUnichar*,
      80                 :                               const PRUnichar*,
      81                 :                               PRUint32,
      82                 :                               PRUint32) const;
      83                 : };
      84                 : 
      85                 : class nsCaseInsensitiveUTF8StringComparator : public nsCStringComparator
      86                 : {
      87                 : public:
      88                 :   virtual PRInt32 operator() (const char*,
      89                 :                               const char*,
      90                 :                               PRUint32,
      91                 :                               PRUint32) const;
      92                 : };
      93                 : 
      94                 : class nsCaseInsensitiveStringArrayComparator
      95                 : {
      96                 : public:
      97                 :   template<class A, class B>
      98                 :   bool Equals(const A& a, const B& b) const {
      99                 :     return a.Equals(b, nsCaseInsensitiveStringComparator());
     100                 :   }
     101                 : };
     102                 : 
     103                 : class nsASCIICaseInsensitiveStringComparator : public nsStringComparator
     104                 : {
     105                 : public:
     106               0 :   nsASCIICaseInsensitiveStringComparator() {}
     107                 :   virtual int operator() (const PRUnichar*,
     108                 :                           const PRUnichar*,
     109                 :                           PRUint32,
     110                 :                           PRUint32) const;
     111                 : };
     112                 : 
     113                 : inline bool
     114               0 : CaseInsensitiveFindInReadable(const nsAString& aPattern,
     115                 :                               nsAString::const_iterator& aSearchStart,
     116                 :                               nsAString::const_iterator& aSearchEnd)
     117                 : {
     118                 :   return FindInReadable(aPattern, aSearchStart, aSearchEnd,
     119               0 :                         nsCaseInsensitiveStringComparator());
     120                 : }
     121                 : 
     122                 : inline bool
     123             219 : CaseInsensitiveFindInReadable(const nsAString& aPattern,
     124                 :                               const nsAString& aHay)
     125                 : {
     126             219 :   nsAString::const_iterator searchBegin, searchEnd;
     127             219 :   return FindInReadable(aPattern, aHay.BeginReading(searchBegin),
     128             219 :                         aHay.EndReading(searchEnd),
     129             438 :                         nsCaseInsensitiveStringComparator());
     130                 : }
     131                 : 
     132                 : #endif // MOZILLA_INTERNAL_API
     133                 : 
     134                 : PRInt32
     135                 : CaseInsensitiveCompare(const PRUnichar *a, const PRUnichar *b, PRUint32 len);
     136                 : 
     137                 : PRInt32
     138                 : CaseInsensitiveCompare(const char* aLeft, const char* aRight,
     139                 :                        PRUint32 aLeftBytes, PRUint32 aRightBytes);
     140                 : 
     141                 : /**
     142                 :  * This function determines whether the UTF-8 sequence pointed to by aLeft is
     143                 :  * case-insensitively-equal to the UTF-8 sequence pointed to by aRight.
     144                 :  *
     145                 :  * aLeftEnd marks the first memory location past aLeft that is not part of
     146                 :  * aLeft; aRightEnd similarly marks the end of aRight.
     147                 :  *
     148                 :  * The function assumes that aLeft < aLeftEnd and aRight < aRightEnd.
     149                 :  *
     150                 :  * The function stores the addresses of the next characters in the sequence
     151                 :  * into aLeftNext and aRightNext.  It's up to the caller to make sure that the
     152                 :  * returned pointers are valid -- i.e. the function may return aLeftNext >=
     153                 :  * aLeftEnd or aRightNext >= aRightEnd.
     154                 :  *
     155                 :  * If the function encounters invalid text, it sets aErr to true and returns
     156                 :  * false, possibly leaving aLeftNext and aRightNext uninitialized.  If the
     157                 :  * function returns true, aErr is guaranteed to be false and both aLeftNext and
     158                 :  * aRightNext are guaranteed to be initialized.
     159                 :  */
     160                 : bool
     161                 : CaseInsensitiveUTF8CharsEqual(const char* aLeft, const char* aRight,
     162                 :                               const char* aLeftEnd, const char* aRightEnd,
     163                 :                               const char** aLeftNext, const char** aRightNext,
     164                 :                               bool* aErr);
     165                 : 
     166                 : namespace mozilla {
     167                 : 
     168                 : /**
     169                 :  * Hash a UTF8 string as though it were a UTF16 string.
     170                 :  *
     171                 :  * The value returned is the same as if we converted the string to UTF16 and
     172                 :  * then ran HashString() on the result.
     173                 :  *
     174                 :  * The given |length| is in bytes.
     175                 :  */
     176                 : PRUint32
     177                 : HashUTF8AsUTF16(const char* aUTF8, PRUint32 aLength, bool* aErr);
     178                 : 
     179                 : } // namespace mozilla
     180                 : 
     181                 : #endif  /* nsUnicharUtils_h__ */

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