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lightning-sunbird  0.9+nobinonly
nsTSubstringTuple.h
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00003 /* ***** BEGIN LICENSE BLOCK *****
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00016  * The Original Code is Mozilla.
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00020  * IBM Corporation. All Rights Reserved.
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00022  * Contributor(s):
00023  *   Darin Fisher <darin@meer.net>
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00025  * Alternatively, the contents of this file may be used under the terms of
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00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 
00049 class nsTSubstringTuple_CharT
00050   {
00051     public:
00052 
00053       typedef CharT                      char_type;
00054       typedef nsCharTraits<char_type>    char_traits;
00055 
00056       typedef nsTSubstringTuple_CharT    self_type;
00057       typedef nsTSubstring_CharT         substring_type;
00058 #ifdef MOZ_V1_STRING_ABI
00059       typedef nsTAString_CharT           base_string_type;
00060       typedef nsTObsoleteAString_CharT   obsolete_string_type;
00061 #else
00062       typedef nsTSubstring_CharT         base_string_type;
00063 #endif
00064       typedef PRUint32                   size_type;
00065 
00066     public:
00067 
00068       nsTSubstringTuple_CharT(const base_string_type* a, const base_string_type* b)
00069         : mHead(nsnull)
00070         , mFragA(a)
00071         , mFragB(b) {}
00072 
00073       nsTSubstringTuple_CharT(const self_type& head, const base_string_type* b)
00074         : mHead(&head)
00075         , mFragA(nsnull) // this fragment is ignored when head != nsnull
00076         , mFragB(b) {}
00077 
00081       NS_COM size_type Length() const;
00082 
00088       NS_COM void WriteTo(char_type *buf, PRUint32 bufLen) const;
00089 
00094       NS_COM PRBool IsDependentOn(const char_type *start, const char_type *end) const;
00095 
00096     private:
00097 
00098       const self_type*        mHead;
00099       const base_string_type* mFragA;
00100       const base_string_type* mFragB;
00101   };
00102 
00103 inline
00104 const nsTSubstringTuple_CharT
00105 operator+(const nsTSubstringTuple_CharT::base_string_type& a, const nsTSubstringTuple_CharT::base_string_type& b)
00106   {
00107     return nsTSubstringTuple_CharT(&a, &b);
00108   }
00109 
00110 inline
00111 const nsTSubstringTuple_CharT
00112 operator+(const nsTSubstringTuple_CharT& head, const nsTSubstringTuple_CharT::base_string_type& b)
00113   {
00114     return nsTSubstringTuple_CharT(head, &b);
00115   }