[138] | 1 | ' com/bstring.ab
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| 2 |
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| 3 | #require <ole2.ab>
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| 4 | #require <oleauto.ab>
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| 5 |
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| 6 | Class BString
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| 7 | Public
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| 8 | Sub BString()
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| 9 | bs = 0
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| 10 | End Sub
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| 11 |
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| 12 | Sub BString(len As DWord)
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[142] | 13 | bs = SysAllocStringLen(0, len)
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[138] | 14 | End Sub
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| 15 |
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| 16 | Sub BString(ByRef s As BString)
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| 17 | BString(s.bs, s.Length)
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| 18 | End Sub
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| 19 |
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| 20 | Sub BString(s As LPCOLESTR)
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| 21 | bs = SysAllocString(s)
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| 22 | End Sub
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| 23 |
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| 24 | Sub BString(s As LPCOLESTR, len As DWord)
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| 25 | bs = SysAllocStringLen(s, len)
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| 26 | End Sub
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| 27 |
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| 28 | Sub BString(s As PCSTR)
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| 29 | BString(s, lstrlenA(s))
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| 30 | End Sub
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| 31 |
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| 32 | Sub BString(s As PCSTR, len As DWord)
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[208] | 33 | Dim lenBS = MultiByteToWideChar(CP_THREAD_ACP, 0, s, len As Long, 0, 0)
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[138] | 34 | bs = SysAllocStringLen(0, lenBS)
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[208] | 35 | MultiByteToWideChar(CP_THREAD_ACP, 0, s, len As Long, bs, lenBS)
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[138] | 36 | End Sub
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| 37 |
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| 38 | Sub BString(ByRef s As String)
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| 39 | BString(s.StrPtr, s.Length As DWord)
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| 40 | End Sub
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| 41 |
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[142] | 42 | Sub ~BString()
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| 43 | Clear()
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| 44 | End Sub
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| 45 |
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[138] | 46 | Sub Operator =(ByRef bstr As BString)
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[142] | 47 | Clear()
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[138] | 48 | BString(bstr)
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| 49 | End Sub
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| 50 |
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[142] | 51 | Sub Operator =(s As LPCOLESTR)
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[138] | 52 | Clear()
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[142] | 53 | BString(s)
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[138] | 54 | End Sub
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| 55 |
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[142] | 56 | Sub Assign(ByRef bstr As BString)
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| 57 | Clear()
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| 58 | BString(bstr)
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| 59 | End Sub
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| 60 |
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| 61 | Sub Assign(s As LPCOLESTR)
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| 62 | Clear()
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| 63 | BString(s)
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| 64 | End Sub
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| 65 |
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| 66 | Sub AssignFromBStr(bstr As BSTR)
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| 67 | Clear()
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[175] | 68 | String.Copy(bs, bstr)
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[142] | 69 | End Sub
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| 70 |
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[175] | 71 | Const Function Copy() As BSTR
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| 72 | BString.Copy(Copy, bs)
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| 73 | End Function
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| 74 |
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[138] | 75 | Sub Clear()
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| 76 | If bs <> 0 Then
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| 77 | SysFreeString(bs)
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| 78 | bs = 0
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| 79 | End If
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| 80 | End Sub
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| 81 |
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[192] | 82 | Sub Attach(ByRef bstr As BSTR)
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[138] | 83 | Clear()
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[175] | 84 | BString.Move(bs, bstr)
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[138] | 85 | End Sub
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| 86 |
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| 87 | Function Detach() As BSTR
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[175] | 88 | BString.Move(Detach, bs)
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[138] | 89 | End Function
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| 90 |
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| 91 | Function BStr() As BSTR
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| 92 | BStr = bs
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| 93 | End Function
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[208] | 94 | /*
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| 95 | Static Function Assgin(bs As BSTR) As BString
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| 96 | Assgin = New BString
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| 97 | Assgin.Assgin(bs)
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| 98 | End Function
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[138] | 99 |
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[208] | 100 | Static Function Attach(bs As BSTR) As BString
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| 101 | Attach = New BString
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| 102 | Attach.Attach(bs)
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| 103 | End Function
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| 104 | */
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[138] | 105 | Const Function Length() As DWord
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| 106 | Length = SysStringLen(bs)
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| 107 | End Function
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| 108 |
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[142] | 109 | Const Function Operator [](i As SIZE_T) As OLECHAR
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[138] | 110 | #ifdef _DEBUG
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| 111 | If i > Length Then
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| 112 | 'Throw OutOfRangeException
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| 113 | End If
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| 114 | #endif
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| 115 | Return bs[i]
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| 116 | End Function
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| 117 |
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| 118 | Sub Operator []=(i As SIZE_T, c As OLECHAR)
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| 119 | #ifdef _DEBUG
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| 120 | If i > Length Then
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| 121 | 'Throw OutOfRangeException
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| 122 | End If
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| 123 | #endif
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| 124 | bs[i] = c
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| 125 | End Sub
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| 126 |
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| 127 | Override Function ToString() As String
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[208] | 128 | Return New String(bs As PCWSTR, Length As Long)
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[138] | 129 | End Function
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| 130 |
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[175] | 131 | Override Function GetHashCode() As Long
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| 132 | Return _System_GetHashFromWordArray(bs, Length)
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| 133 | End Function
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| 134 |
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[138] | 135 | Private
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| 136 | bs As BSTR
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[175] | 137 |
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| 138 | Static Sub Copy(ByRef dst As BSTR, ByVal src As BSTR)
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| 139 | dst = SysAllocStringLen(src, SysStringLen(src))
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| 140 | End Sub
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| 141 |
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| 142 | Static Sub Move(ByRef dst As BSTR, ByRef src As BSTR)
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| 143 | dst = src
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| 144 | src = 0
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| 145 | End Sub
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[138] | 146 | End Class
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| 147 |
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