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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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21
22 #ifndef _DBASHARED_CONSTASCIISTRING_HXX_
23 #define _DBASHARED_CONSTASCIISTRING_HXX_
24
25 #ifndef CONSTASCII_INCLUDED_INDIRECT
26 #error "don't include this file directly! use stringconstants.hrc instead!"
27 #endif
28
29 // no namespaces. This file is included from several other files _within_ a namespace.
30
31 //============================================================
32 //= a helper for static ascii pseudo-unicode strings
33 //============================================================
34 // string constants
35 struct ConstAsciiString
36 {
37 const sal_Char* ascii;
38 sal_Int32 length;
39
40 inline operator const ::rtl::OUString& () const;
operator const sal_Char*ConstAsciiString41 inline operator const sal_Char* () const { return ascii; }
42
43 inline ConstAsciiString(const sal_Char* _pAsciiZeroTerminated, const sal_Int32 _nLength);
44 inline ~ConstAsciiString();
45
46 private:
47 mutable ::rtl::OUString* ustring;
48 };
49
50 //------------------------------------------------------------
ConstAsciiString(const sal_Char * _pAsciiZeroTerminated,const sal_Int32 _nLength)51 inline ConstAsciiString::ConstAsciiString(const sal_Char* _pAsciiZeroTerminated, const sal_Int32 _nLength)
52 :ascii(_pAsciiZeroTerminated)
53 ,length(_nLength)
54 ,ustring(NULL)
55 {
56 }
57
58 //------------------------------------------------------------
~ConstAsciiString()59 inline ConstAsciiString::~ConstAsciiString()
60 {
61 delete ustring;
62 ustring = NULL;
63 }
64
65 //------------------------------------------------------------
operator const::rtl::OUString&() const66 inline ConstAsciiString::operator const ::rtl::OUString& () const
67 {
68 if (!ustring)
69 ustring = new ::rtl::OUString(ascii, length, RTL_TEXTENCODING_ASCII_US);
70 return *ustring;
71 }
72
73 //============================================================
74
75 #define DECLARE_CONSTASCII_USTRING( name ) \
76 extern const ConstAsciiString name
77
78 #define IMPLEMENT_CONSTASCII_USTRING( name, string ) \
79 const ConstAsciiString name(string, sizeof(string)-1)
80
81
82 #endif // _DBASHARED_CONSTASCIISTRING_HXX_
83