[1] | 1 | Class String
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[30] | 2 | m_Chars As LPSTR
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| 3 | m_Length As Long
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[1] | 4 | Public
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| 5 |
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| 6 | Sub String()
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[30] | 7 | m_Chars = _System_calloc(1)
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| 8 | m_Length = 0
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[1] | 9 | End Sub
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| 10 |
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| 11 | Sub String(initStr As LPSTR)
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| 12 | String()
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| 13 | Assign(initStr)
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| 14 | End Sub
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[30] | 15 |
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| 16 | /* Sub String(ByRef initStr As String)
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[1] | 17 | String()
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| 18 | Assign(initStr)
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| 19 | End Sub
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| 20 | */
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| 21 | /*
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| 22 | Sub String(length As Long)
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| 23 | ReSize(length)
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| 24 | End Sub
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| 25 | */
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| 26 | Sub String(length As Long, initChar As Byte)
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| 27 | ReSize(length, initChar)
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| 28 | End Sub
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| 29 |
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| 30 | Sub ~String()
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[30] | 31 | _System_free(m_Chars)
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| 32 | m_Chars = 0
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[1] | 33 | #ifdef _DEBUG
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[30] | 34 | m_Length = 0
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[1] | 35 | #endif
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| 36 | End Sub
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| 37 |
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[30] | 38 | Function Chars() As LPSTR
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| 39 | Return m_Chars
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| 40 | End Function
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| 41 |
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| 42 | Function Length() As Long
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| 43 | Return m_Length
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| 44 | End Function
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| 45 |
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[1] | 46 | Function Operator() As LPSTR
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[30] | 47 | Return m_Chars
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[1] | 48 | End Function
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| 49 |
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| 50 | Sub Operator = (ByRef objString As String)
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[30] | 51 | Assign(objString.m_Chars, objString.m_Length)
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[1] | 52 | End Sub
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| 53 |
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| 54 | Sub Operator = (text As LPSTR)
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| 55 | Assign(text)
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| 56 | End Sub
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| 57 |
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| 58 | Function Operator[] (n As Long) As Byte
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[30] | 59 | Return m_Chars[n]
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[1] | 60 | End Function
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| 61 |
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| 62 | Sub Operator[]= (n As Long, c As Byte)
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[30] | 63 | m_Chars[n] = c
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[1] | 64 | End Sub
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| 65 |
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| 66 | Function Operator+ (lpszText As LPSTR) As String
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| 67 | Return Concat(lpszText, lstrlen(lpszText))
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| 68 | End Function
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| 69 |
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| 70 | Function Operator+ (ByRef objString As String) As String
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[30] | 71 | Return Concat(objString, objString.m_Length)
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[1] | 72 | End Function
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| 73 |
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| 74 | Function Operator& (lpszText As LPSTR) As String
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| 75 | Dim tempString As String
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| 76 | tempString=This+lpszText
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| 77 | Return tempString
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| 78 | End Function
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| 79 |
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| 80 | Function Operator& (ByRef objString As String) As String
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| 81 | Dim tempString As String
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| 82 | tempString=This+objString
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| 83 | Return tempString
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| 84 | End Function
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| 85 |
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| 86 | Function Operator== (ByRef objString As String) As Long
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| 87 | If lstrcmp(This, objString) = 0 Then
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| 88 | Return _System_TRUE
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| 89 | Else
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| 90 | Return _System_FALSE
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| 91 | End If
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| 92 | End Function
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| 93 |
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| 94 | Function Operator== (lpszText As LPSTR) As Long
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| 95 | If lstrcmp(This, lpszText) = 0 Then
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| 96 | Return _System_TRUE
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| 97 | Else
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| 98 | Return _System_FALSE
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| 99 | End If
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| 100 | End Function
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| 101 |
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| 102 | Function Operator<> (ByRef objString As String) As Long
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| 103 | Return lstrcmp(This, objString)
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| 104 | End Function
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| 105 |
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| 106 | Function Operator<> (lpszText As LPSTR) As Long
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| 107 | Return lstrcmp(This, lpszText)
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| 108 | End Function
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| 109 |
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| 110 | Function Operator< (ByRef objString As String) As Long
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| 111 | If lstrcmp(This, objString) < 0 Then
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| 112 | Return _System_TRUE
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| 113 | Else
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| 114 | Return _System_FALSE
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| 115 | End If
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| 116 | End Function
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| 117 |
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| 118 | Function Operator< (lpszText As LPSTR) As Long
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| 119 | If lstrcmp(This, lpszText) < 0 Then
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| 120 | Return _System_TRUE
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| 121 | Else
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| 122 | Return _System_FALSE
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| 123 | End If
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| 124 | End Function
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| 125 |
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| 126 | Function Operator> (ByRef objString As String) As Long
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| 127 | If lstrcmp(This, objString) > 0 Then
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| 128 | Return _System_TRUE
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| 129 | Else
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| 130 | Return _System_FALSE
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| 131 | End If
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| 132 | End Function
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| 133 |
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| 134 | Function Operator> (lpszText As LPSTR) As Long
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| 135 | If lstrcmp(This, lpszText) > 0 Then
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| 136 | Return _System_TRUE
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| 137 | Else
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| 138 | Return _System_FALSE
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| 139 | End If
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| 140 | End Function
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| 141 |
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| 142 | Function Operator<= (ByRef objString As String) As Long
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| 143 | If lstrcmp(This, objString) <= 0 Then
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| 144 | Return _System_TRUE
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| 145 | Else
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| 146 | Return _System_FALSE
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| 147 | End If
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| 148 | End Function
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| 149 |
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| 150 | Function Operator<= (lpszText As LPSTR) As Long
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| 151 | If lstrcmp(This, lpszText) <= 0 Then
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| 152 | Return _System_TRUE
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| 153 | Else
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| 154 | Return _System_FALSE
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| 155 | End If
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| 156 | End Function
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| 157 |
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| 158 | Function Operator>= (ByRef objString As String) As Long
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| 159 | If lstrcmp(This, objString) => 0 Then
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| 160 | Return _System_TRUE
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| 161 | Else
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| 162 | Return _System_FALSE
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| 163 | End If
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| 164 | End Function
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| 165 |
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| 166 | Function Operator>= (lpszText As LPSTR) As Long
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| 167 | If lstrcmp(This, lpszText) => 0 Then
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| 168 | Return _System_TRUE
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| 169 | Else
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| 170 | Return _System_FALSE
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| 171 | End If
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| 172 | End Function
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| 173 |
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| 174 | Function StrPtr() As LPSTR
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[30] | 175 | Return m_Chars
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[1] | 176 | End Function
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| 177 |
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| 178 | Sub ReSize(allocLength As Long)
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| 179 | If allocLength < 0 Then Exit Sub
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[30] | 180 | If allocLength > m_Length Then
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[1] | 181 | Dim oldLength As Long
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[30] | 182 | oldLength = m_Length
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[1] | 183 | If AllocStringBuffer(allocLength) <> 0 Then
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[30] | 184 | ZeroMemory(m_Chars + oldLength, m_Length - oldLength + 1)
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[1] | 185 | End If
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| 186 | Else
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[30] | 187 | m_Length = allocLength
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| 188 | m_Chars[m_Length] = 0
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[1] | 189 | End If
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| 190 | End Sub
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| 191 |
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| 192 | Sub ReSize(allocLength As Long, c As Byte)
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| 193 | If allocLength < 0 Then
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| 194 | Exit Sub
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[30] | 195 | ElseIf allocLength > m_Length Then
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[1] | 196 | Dim oldLength As Long
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[30] | 197 | oldLength = m_Length
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[1] | 198 | If AllocStringBuffer(allocLength) <> 0 Then
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[30] | 199 | FillMemory(m_Chars + oldLength, m_Length - oldLength, c)
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[1] | 200 | End If
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| 201 | Else
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[30] | 202 | m_Length = allocLength
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[1] | 203 | End If
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[30] | 204 | m_Chars[m_Length] = 0
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[1] | 205 | End Sub
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| 206 |
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| 207 | Sub Assign(lpszText As LPSTR, textLength As Long)
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[30] | 208 | If lpszText = m_Chars Then Exit Sub
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[1] | 209 | If AllocStringBuffer(textLength) <> 0 Then
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[30] | 210 | memcpy(m_Chars, lpszText, textLength)
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| 211 | m_Chars[m_Length] = 0
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[1] | 212 | End If
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| 213 | End Sub
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| 214 |
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| 215 | Sub Assign(ByRef objString As String)
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[30] | 216 | Assign(objString.m_Chars, objString.m_Length)
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[1] | 217 | End Sub
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| 218 |
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| 219 | Sub Assign(lpszText As LPSTR)
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| 220 | If lpszText Then
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| 221 | Assign(lpszText, lstrlen(lpszText))
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| 222 | Else
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[30] | 223 | 'm_Chars=_System_realloc(m_Chars,1)
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| 224 | m_Chars[0] = 0
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| 225 | m_Length = 0
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[1] | 226 | End If
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| 227 | End Sub
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| 228 |
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| 229 | Sub Append(lpszText As LPSTR, textLength As Long)
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| 230 | Dim prevLen As Long
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[30] | 231 | prevLen = m_Length
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| 232 | If AllocStringBuffer(m_Length + textLength) <> 0 Then
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| 233 | memcpy(m_Chars + prevLen, lpszText, textLength)
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| 234 | m_Chars[m_Length] = 0
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[1] | 235 | End If
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| 236 | End Sub
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| 237 |
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| 238 | Sub Append(text As LPSTR)
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| 239 | Append(text, lstrlen(text))
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| 240 | End Sub
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| 241 |
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| 242 | Sub Append(ByRef str As String)
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[30] | 243 | Append(str.m_Chars, str.m_Length)
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[1] | 244 | End Sub
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| 245 |
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| 246 | Function Concat(lpszText As LPSTR, textLength As Long) As String
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| 247 | Dim tempString As String
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| 248 | With tempString
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[30] | 249 | .AllocStringBuffer(This.m_Length + textLength)
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| 250 | memcpy(.m_Chars, This.m_Chars, This.m_Length)
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| 251 | memcpy(.m_Chars + This.m_Length, lpszText, textLength)
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| 252 | .m_Chars[.m_Length] = 0
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[1] | 253 | End With
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| 254 | Return tempString
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| 255 | End Function
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| 256 |
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| 257 | Function Contains(ByRef objString As String) As BOOL
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[30] | 258 | If IndexOf(objString, 0, m_Length) >= 0 Then
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[1] | 259 | Return _System_TRUE
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| 260 | Else
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| 261 | Return _System_FALSE
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| 262 | End If
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| 263 | End Function
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| 264 |
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| 265 | Function Contains(lpszText As LPSTR) As BOOL
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[30] | 266 | If IndexOf(lpszText, 0, m_Length) >= 0 Then
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[1] | 267 | Return _System_TRUE
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| 268 | Else
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| 269 | Return _System_FALSE
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| 270 | End If
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| 271 | End Function
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| 272 |
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| 273 | Function IndexOf(lpszText As LPSTR) As Long
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[30] | 274 | Return IndexOf(lpszText, 0, m_Length)
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[1] | 275 | End Function
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| 276 |
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| 277 | Function IndexOf(lpszText As LPSTR, startIndex As Long) As Long
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[30] | 278 | Return IndexOf(lpszText, startIndex, m_Length - startIndex)
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[1] | 279 | End Function
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| 280 |
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| 281 | Function IndexOf(lpszText As LPSTR, startIndex As Long, count As Long) As Long
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| 282 | Dim length As Long
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| 283 | length = lstrlen(lpszText)
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| 284 |
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| 285 | If startIndex < 0 Then Return -1
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[30] | 286 | If count < 1 Or count + startIndex > m_Length Then Return -1
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| 287 | If length > m_Length Then Return -1
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[1] | 288 |
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| 289 | If length = 0 Then Return startIndex
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| 290 |
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| 291 | Dim i As Long, j As Long
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| 292 | For i = startIndex To startIndex + count - 1
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| 293 | For j = 0 To length - 1
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[30] | 294 | If m_Chars[i + j] = lpszText[j] Then
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[1] | 295 | If j = length - 1 Then Return i
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| 296 | Else
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| 297 | Exit For
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| 298 | End If
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| 299 | Next
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| 300 | Next
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| 301 | Return -1
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| 302 | End Function
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| 303 |
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| 304 | Function LastIndexOf(lpszText As LPSTR) As Long
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[30] | 305 | Return LastIndexOf(lpszText, m_Length - 1, m_Length)
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[1] | 306 | End Function
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| 307 |
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| 308 | Function LastIndexOf(lpszText As LPSTR, startIndex As Long) As Long
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| 309 | Return LastIndexOf(lpszText As LPSTR, startIndex, startIndex + 1)
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| 310 | End Function
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| 311 |
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| 312 | Function LastIndexOf(lpszText As LPSTR, startIndex As Long, count As Long) As Long
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| 313 | Dim length As Long
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| 314 | length = lstrlen(lpszText)
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| 315 |
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[30] | 316 | If startIndex < 0 Or startIndex > m_Length - 1 Then Return -1
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[1] | 317 | If count < 1 Or count > startIndex + 2 Then Return -1
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[30] | 318 | If length > m_Length Then Return -1
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[1] | 319 |
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| 320 | If length = 0 Then Return startIndex
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| 321 |
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| 322 | Dim i As Long, j As Long
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| 323 | For i = startIndex To startIndex - count + 1 Step -1
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| 324 | For j = length - 1 To 0 Step -1
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[30] | 325 | If m_Chars[i + j] = lpszText[j] Then
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[1] | 326 | If j = 0 Then Return i
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| 327 | Else
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| 328 | Exit For
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| 329 | End If
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| 330 | Next
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| 331 | Next
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| 332 | Return -1
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| 333 | End Function
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| 334 |
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| 335 | Function StartsWith(lpszText As LPSTR) As BOOL
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| 336 | If IndexOf(lpszText) = 0 Then
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| 337 | Return _System_TRUE
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| 338 | Else
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| 339 | Return _System_FALSE
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| 340 | End If
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| 341 | End Function
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| 342 |
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| 343 | Function EndsWith(lpszText As LPSTR) As BOOL
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[30] | 344 | If LastIndexOf(lpszText) = m_Length - lstrlen(lpszText) Then
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[1] | 345 | Return _System_TRUE
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| 346 | Else
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| 347 | Return _System_FALSE
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| 348 | End If
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| 349 | End Function
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| 350 |
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| 351 | Function Insert(startIndex As Long, lpszText As LPSTR) As Long
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| 352 | Dim length As Long
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| 353 | length = lstrlen(lpszText)
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| 354 |
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[30] | 355 | If startIndex < 0 Or startIndex > m_Length Then Return -1
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[1] | 356 |
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| 357 | Dim newChars As LPSTR
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[30] | 358 | newChars = _System_malloc(length + m_Length + 1)
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[1] | 359 | If newChars = 0 Then Return -1
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| 360 |
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[30] | 361 | memcpy(newChars, m_Chars, startIndex)
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[1] | 362 | memcpy(newChars + startIndex, lpszText, length)
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[30] | 363 | memcpy(newChars + startIndex + length, m_Chars + startIndex, m_Length - startIndex + 1)
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[1] | 364 |
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[30] | 365 | _System_free(m_Chars)
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| 366 | m_Chars = newChars
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| 367 | m_Length = length + m_Length
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| 368 | Return m_Length
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[1] | 369 | End Function
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| 370 |
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| 371 | Function SubString(startIndex As Long) As String
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[30] | 372 | Return SubString(startIndex, m_Length - startIndex)
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[1] | 373 | End Function
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| 374 |
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| 375 | Function SubString(startIndex As Long, length As Long) As String
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| 376 | If startIndex < 0 Or length <= 0 Then Return ""
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[30] | 377 | If startIndex + length > m_Length Then Return ""
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[1] | 378 |
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| 379 | Dim temp As String
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| 380 | temp.AllocStringBuffer(length)
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[30] | 381 | memcpy(temp.m_Chars, VarPtr(m_Chars[startIndex]), length)
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| 382 | m_Chars[m_Length] = 0
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[1] | 383 | Return temp
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| 384 | End Function
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| 385 |
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| 386 | Function Remove(startIndex As Long) As Long
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[30] | 387 | If startIndex < 0 Or startIndex > m_Length Then Return -1
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| 388 | m_Chars[startIndex] = 0
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| 389 | m_Length = startIndex
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| 390 | Return m_Length
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[1] | 391 | End Function
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| 392 |
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| 393 | Function Remove(startIndex As Long, count As Long) As Long
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| 394 | If startIndex < 0 Or count < 0 Then Return -1
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[30] | 395 | If startIndex + count > m_Length Then Return -1
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[1] | 396 |
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| 397 | Dim newChars As LPSTR
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[30] | 398 | newChars = _System_malloc(m_Length - count + 1)
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[1] | 399 | If newChars = 0 Then Return -1
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| 400 |
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[30] | 401 | memcpy(newChars, m_Chars, startIndex)
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| 402 | memcpy(newChars + startIndex, m_Chars + startIndex + count, m_Length - startIndex - count)
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| 403 | newChars[m_Length - count] = 0
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[1] | 404 |
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[30] | 405 | _System_free(m_Chars)
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| 406 | m_Chars = newChars
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| 407 | m_Length = m_Length - count
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| 408 | Return m_Length
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[1] | 409 | End Function
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| 410 |
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| 411 | Function IsNullOrEmpty() As BOOL
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[30] | 412 | If m_Length = 0 Then
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[1] | 413 | Return _System_TRUE
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| 414 | Else
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| 415 | Return _System_FALSE
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| 416 | End If
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| 417 | End Function
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| 418 |
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| 419 | Sub Replace(oldChar As Byte, newChar As Byte)
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| 420 | Dim i As Long
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[30] | 421 | For i = 0 To ELM(m_Length)
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| 422 | If m_Chars[i] = oldChar Then
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| 423 | m_Chars[i] = newChar
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[1] | 424 | End If
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| 425 | Next
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| 426 | End Sub
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| 427 |
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| 428 | Sub Replace(ByRef oldStr As String, ByRef newStr As String)
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[30] | 429 | Replace(oldStr, oldStr.m_Length, newStr, newStr.m_Length)
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[1] | 430 | End Sub
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| 431 |
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| 432 | Sub Replace(oldStr As PCSTR, newStr As PCSTR)
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| 433 | Replace(oldStr, lstrlen(oldStr), newStr, lstrlen(newStr))
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| 434 | End Sub
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| 435 |
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| 436 | Sub Replace(oldStr As PCSTR, oldLen As Long, newStr As PCSTR, newLen As Long)
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| 437 | Dim tempString As String
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| 438 | With tempString
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| 439 | Dim current = 0 As Long
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| 440 | Do
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| 441 | Dim pos As Long
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| 442 | pos = IndexOf(oldStr, current)
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| 443 | If pos = -1 Then
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| 444 | Exit Do
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| 445 | End If
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[30] | 446 | .Append(m_Chars + current, pos - current)
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[1] | 447 | .Append(newStr, newLen)
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| 448 | current = pos + oldLen
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| 449 | Loop
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[30] | 450 | .Append(m_Chars + current, m_Length - current)
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[1] | 451 | End With
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| 452 | Swap(tempString)
|
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| 453 | End Sub
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| 454 |
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| 455 | Sub ToLower()
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[30] | 456 | CharLower(m_Chars)
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[1] | 457 | End Sub
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| 458 |
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| 459 | Sub ToUpper()
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[30] | 460 | CharUpper(m_Chars)
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[1] | 461 | End Sub
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| 462 |
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| 463 | Sub Swap(ByRef x As String)
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| 464 | Dim tempLen As Long
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| 465 | Dim tempChars As PSTR
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[30] | 466 | tempLen = x.m_Length
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| 467 | tempChars = x.m_Chars
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| 468 | x.m_Length = This.m_Length
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| 469 | x.m_Chars = This.m_Chars
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| 470 | This.m_Length = tempLen
|
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| 471 | This.m_Chars = tempChars
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[1] | 472 | End Sub
|
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| 473 |
|
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| 474 | Private
|
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| 475 | ' メモリ確保に失敗すると元の文字列は失われない。(例外安全でいう強い保障)
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| 476 | Function AllocStringBuffer(textLength As Long) As LPSTR
|
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| 477 | If textLength < 0 Then
|
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| 478 | Return 0
|
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[30] | 479 | ElseIf textLength > m_Length Then
|
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| 480 | AllocStringBuffer = _System_realloc(m_Chars, textLength + 1)
|
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[1] | 481 | If AllocStringBuffer <> 0 Then
|
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[30] | 482 | m_Length = textLength
|
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| 483 | m_Chars = AllocStringBuffer
|
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[1] | 484 | End If
|
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| 485 | Else
|
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[30] | 486 | m_Length = textLength
|
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| 487 | AllocStringBuffer = m_Chars
|
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[1] | 488 | End If
|
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| 489 | End Function
|
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| 490 |
|
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| 491 | End Class
|
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| 492 |
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