[1] | 1 | Class String
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[30] | 2 | m_Length As Long
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[1] | 3 | Public
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[119] | 4 | Chars As *Char
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[1] | 5 |
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| 6 | Sub String()
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[31] | 7 | Chars = _System_calloc(1)
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[30] | 8 | m_Length = 0
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[1] | 9 | End Sub
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| 10 |
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[119] | 11 | Sub String(initStr As *Char)
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[1] | 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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[49] | 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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[49] | 20 |
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[1] | 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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[119] | 26 | Sub String(initChar As Char, length As Long)
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[1] | 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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[31] | 31 | _System_free(Chars)
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| 32 | 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 Length() As Long
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| 39 | Return m_Length
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| 40 | End Function
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| 41 |
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[119] | 42 | Function Operator() As *Char
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[31] | 43 | Return Chars
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[1] | 44 | End Function
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| 45 |
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| 46 | Sub Operator = (ByRef objString As String)
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[31] | 47 | Assign(objString.Chars, objString.m_Length)
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[1] | 48 | End Sub
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| 49 |
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[119] | 50 | Sub Operator = (text As *Char)
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[1] | 51 | Assign(text)
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| 52 | End Sub
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| 53 |
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[119] | 54 | Function Operator[] (n As Long) As Char
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[31] | 55 | Return Chars[n]
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[1] | 56 | End Function
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| 57 |
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[119] | 58 | Sub Operator[]= (n As Long, c As Char)
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[31] | 59 | Chars[n] = c
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[1] | 60 | End Sub
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| 61 |
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[119] | 62 | Function Operator+ (lpszText As *Char) As String
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[1] | 63 | Return Concat(lpszText, lstrlen(lpszText))
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| 64 | End Function
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| 65 |
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| 66 | Function Operator+ (ByRef objString As String) As String
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[30] | 67 | Return Concat(objString, objString.m_Length)
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[1] | 68 | End Function
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| 69 |
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[119] | 70 | Function Operator& (lpszText As *Char) As String
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[1] | 71 | Dim tempString As String
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| 72 | tempString=This+lpszText
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| 73 | Return tempString
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| 74 | End Function
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| 75 |
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| 76 | Function Operator& (ByRef objString As String) As String
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| 77 | Dim tempString As String
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| 78 | tempString=This+objString
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| 79 | Return tempString
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| 80 | End Function
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| 81 |
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| 82 | Function Operator== (ByRef objString As String) As Long
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| 83 | If lstrcmp(This, objString) = 0 Then
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| 84 | Return _System_TRUE
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| 85 | Else
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| 86 | Return _System_FALSE
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| 87 | End If
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| 88 | End Function
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| 89 |
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[119] | 90 | Function Operator== (lpszText As *Char) As Long
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[1] | 91 | If lstrcmp(This, lpszText) = 0 Then
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| 92 | Return _System_TRUE
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| 93 | Else
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| 94 | Return _System_FALSE
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| 95 | End If
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| 96 | End Function
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| 97 |
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| 98 | Function Operator<> (ByRef objString As String) As Long
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| 99 | Return lstrcmp(This, objString)
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| 100 | End Function
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| 101 |
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[119] | 102 | Function Operator<> (lpszText As *Char) As Long
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[1] | 103 | Return lstrcmp(This, lpszText)
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| 104 | End Function
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| 105 |
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| 106 | Function Operator< (ByRef objString As String) As Long
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| 107 | If lstrcmp(This, objString) < 0 Then
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| 108 | Return _System_TRUE
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| 109 | Else
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| 110 | Return _System_FALSE
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| 111 | End If
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| 112 | End Function
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| 113 |
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[119] | 114 | Function Operator< (lpszText As *Char) As Long
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[1] | 115 | If lstrcmp(This, lpszText) < 0 Then
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| 116 | Return _System_TRUE
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| 117 | Else
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| 118 | Return _System_FALSE
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| 119 | End If
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| 120 | End Function
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| 121 |
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| 122 | Function Operator> (ByRef objString As String) As Long
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| 123 | If lstrcmp(This, objString) > 0 Then
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| 124 | Return _System_TRUE
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| 125 | Else
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| 126 | Return _System_FALSE
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| 127 | End If
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| 128 | End Function
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| 129 |
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[119] | 130 | Function Operator> (lpszText As *Char) As Long
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[1] | 131 | If lstrcmp(This, lpszText) > 0 Then
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| 132 | Return _System_TRUE
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| 133 | Else
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| 134 | Return _System_FALSE
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| 135 | End If
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| 136 | End Function
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| 137 |
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| 138 | Function Operator<= (ByRef objString As String) As Long
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| 139 | If lstrcmp(This, objString) <= 0 Then
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| 140 | Return _System_TRUE
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| 141 | Else
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| 142 | Return _System_FALSE
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| 143 | End If
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| 144 | End Function
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| 145 |
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[119] | 146 | Function Operator<= (lpszText As *Char) As Long
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[1] | 147 | If lstrcmp(This, lpszText) <= 0 Then
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| 148 | Return _System_TRUE
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| 149 | Else
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| 150 | Return _System_FALSE
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| 151 | End If
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| 152 | End Function
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| 153 |
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| 154 | Function Operator>= (ByRef objString As String) As Long
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| 155 | If lstrcmp(This, objString) => 0 Then
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| 156 | Return _System_TRUE
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| 157 | Else
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| 158 | Return _System_FALSE
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| 159 | End If
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| 160 | End Function
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| 161 |
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[119] | 162 | Function Operator>= (lpszText As *Char) As Long
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[1] | 163 | If lstrcmp(This, lpszText) => 0 Then
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| 164 | Return _System_TRUE
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| 165 | Else
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| 166 | Return _System_FALSE
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| 167 | End If
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| 168 | End Function
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| 169 |
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[119] | 170 | Function StrPtr() As *Char
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[31] | 171 | Return Chars
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[1] | 172 | End Function
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| 173 |
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| 174 | Sub ReSize(allocLength As Long)
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| 175 | If allocLength < 0 Then Exit Sub
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[30] | 176 | If allocLength > m_Length Then
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[1] | 177 | Dim oldLength As Long
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[30] | 178 | oldLength = m_Length
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[1] | 179 | If AllocStringBuffer(allocLength) <> 0 Then
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[31] | 180 | ZeroMemory(Chars + oldLength, m_Length - oldLength + 1)
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[1] | 181 | End If
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| 182 | Else
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[30] | 183 | m_Length = allocLength
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[31] | 184 | Chars[m_Length] = 0
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[1] | 185 | End If
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| 186 | End Sub
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| 187 |
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[119] | 188 | Sub ReSize(allocLength As Long, c As Char)
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[1] | 189 | If allocLength < 0 Then
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| 190 | Exit Sub
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[30] | 191 | ElseIf allocLength > m_Length Then
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[1] | 192 | Dim oldLength As Long
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[30] | 193 | oldLength = m_Length
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[1] | 194 | If AllocStringBuffer(allocLength) <> 0 Then
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[31] | 195 | FillMemory(Chars + oldLength, m_Length - oldLength, c)
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[1] | 196 | End If
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| 197 | Else
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[30] | 198 | m_Length = allocLength
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[1] | 199 | End If
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[31] | 200 | Chars[m_Length] = 0
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[1] | 201 | End Sub
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| 202 |
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[119] | 203 | Sub Assign(lpszText As *Char, textLength As Long)
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[31] | 204 | If lpszText = Chars Then Exit Sub
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[1] | 205 | If AllocStringBuffer(textLength) <> 0 Then
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[31] | 206 | memcpy(Chars, lpszText, textLength)
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| 207 | Chars[m_Length] = 0
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[1] | 208 | End If
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| 209 | End Sub
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| 210 |
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| 211 | Sub Assign(ByRef objString As String)
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[31] | 212 | Assign(objString.Chars, objString.m_Length)
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[1] | 213 | End Sub
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| 214 |
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[119] | 215 | Sub Assign(lpszText As *Char)
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[1] | 216 | If lpszText Then
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| 217 | Assign(lpszText, lstrlen(lpszText))
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| 218 | Else
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[31] | 219 | 'Chars=_System_realloc(Chars,1)
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| 220 | Chars[0] = 0
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[30] | 221 | m_Length = 0
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[1] | 222 | End If
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| 223 | End Sub
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| 224 |
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[119] | 225 | Sub Append(lpszText As *Char, textLength As Long)
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[1] | 226 | Dim prevLen As Long
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[30] | 227 | prevLen = m_Length
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| 228 | If AllocStringBuffer(m_Length + textLength) <> 0 Then
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[31] | 229 | memcpy(Chars + prevLen, lpszText, textLength)
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| 230 | Chars[m_Length] = 0
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[1] | 231 | End If
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| 232 | End Sub
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| 233 |
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[119] | 234 | Sub Append(text As *Char)
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[1] | 235 | Append(text, lstrlen(text))
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| 236 | End Sub
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| 237 |
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| 238 | Sub Append(ByRef str As String)
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[31] | 239 | Append(str.Chars, str.m_Length)
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[1] | 240 | End Sub
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| 241 |
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[119] | 242 | Function Concat(lpszText As *Char, textLength As Long) As String
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[1] | 243 | Dim tempString As String
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| 244 | With tempString
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[30] | 245 | .AllocStringBuffer(This.m_Length + textLength)
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[31] | 246 | memcpy(.Chars, This.Chars, This.m_Length)
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| 247 | memcpy(.Chars + This.m_Length, lpszText, textLength)
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| 248 | .Chars[.m_Length] = 0
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[1] | 249 | End With
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| 250 | Return tempString
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| 251 | End Function
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| 252 |
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| 253 | Function Contains(ByRef objString As String) As BOOL
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[30] | 254 | If IndexOf(objString, 0, m_Length) >= 0 Then
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[1] | 255 | Return _System_TRUE
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| 256 | Else
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| 257 | Return _System_FALSE
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| 258 | End If
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| 259 | End Function
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| 260 |
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[119] | 261 | Function Contains(lpszText As *Char) As BOOL
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[30] | 262 | If IndexOf(lpszText, 0, m_Length) >= 0 Then
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[1] | 263 | Return _System_TRUE
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| 264 | Else
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| 265 | Return _System_FALSE
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| 266 | End If
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| 267 | End Function
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| 268 |
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[119] | 269 | Function IndexOf(lpszText As *Char) As Long
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[30] | 270 | Return IndexOf(lpszText, 0, m_Length)
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[1] | 271 | End Function
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| 272 |
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[119] | 273 | Function IndexOf(lpszText As *Char, startIndex As Long) As Long
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[30] | 274 | Return IndexOf(lpszText, startIndex, m_Length - startIndex)
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[1] | 275 | End Function
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| 276 |
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[119] | 277 | Function IndexOf(lpszText As *Char, startIndex As Long, count As Long) As Long
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[1] | 278 | Dim length As Long
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| 279 | length = lstrlen(lpszText)
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| 280 |
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| 281 | If startIndex < 0 Then Return -1
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[30] | 282 | If count < 1 Or count + startIndex > m_Length Then Return -1
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| 283 | If length > m_Length Then Return -1
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[1] | 284 |
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| 285 | If length = 0 Then Return startIndex
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| 286 |
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| 287 | Dim i As Long, j As Long
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| 288 | For i = startIndex To startIndex + count - 1
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| 289 | For j = 0 To length - 1
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[31] | 290 | If Chars[i + j] = lpszText[j] Then
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[1] | 291 | If j = length - 1 Then Return i
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| 292 | Else
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| 293 | Exit For
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| 294 | End If
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| 295 | Next
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| 296 | Next
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| 297 | Return -1
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| 298 | End Function
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| 299 |
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[119] | 300 | Function LastIndexOf(lpszText As *Char) As Long
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[30] | 301 | Return LastIndexOf(lpszText, m_Length - 1, m_Length)
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[1] | 302 | End Function
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| 303 |
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[119] | 304 | Function LastIndexOf(lpszText As *Char, startIndex As Long) As Long
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| 305 | Return LastIndexOf(lpszText As *Char, startIndex, startIndex + 1)
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[1] | 306 | End Function
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| 307 |
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[119] | 308 | Function LastIndexOf(lpszText As *Char, startIndex As Long, count As Long) As Long
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[1] | 309 | Dim length As Long
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| 310 | length = lstrlen(lpszText)
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| 311 |
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[30] | 312 | If startIndex < 0 Or startIndex > m_Length - 1 Then Return -1
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[1] | 313 | If count < 1 Or count > startIndex + 2 Then Return -1
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[30] | 314 | If length > m_Length Then Return -1
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[1] | 315 |
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| 316 | If length = 0 Then Return startIndex
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| 317 |
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| 318 | Dim i As Long, j As Long
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| 319 | For i = startIndex To startIndex - count + 1 Step -1
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| 320 | For j = length - 1 To 0 Step -1
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[31] | 321 | If Chars[i + j] = lpszText[j] Then
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[1] | 322 | If j = 0 Then Return i
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| 323 | Else
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| 324 | Exit For
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| 325 | End If
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| 326 | Next
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| 327 | Next
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| 328 | Return -1
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| 329 | End Function
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| 330 |
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[119] | 331 | Function StartsWith(lpszText As *Char) As BOOL
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[1] | 332 | If IndexOf(lpszText) = 0 Then
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| 333 | Return _System_TRUE
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| 334 | Else
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| 335 | Return _System_FALSE
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| 336 | End If
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| 337 | End Function
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| 338 |
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[119] | 339 | Function EndsWith(lpszText As *Char) As BOOL
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[30] | 340 | If LastIndexOf(lpszText) = m_Length - lstrlen(lpszText) Then
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[1] | 341 | Return _System_TRUE
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| 342 | Else
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| 343 | Return _System_FALSE
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| 344 | End If
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| 345 | End Function
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| 346 |
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[119] | 347 | Function Insert(startIndex As Long, lpszText As *Char) As Long
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[1] | 348 | Dim length As Long
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| 349 | length = lstrlen(lpszText)
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| 350 |
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[30] | 351 | If startIndex < 0 Or startIndex > m_Length Then Return -1
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[1] | 352 |
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[119] | 353 | Dim newChars As *Char
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[30] | 354 | newChars = _System_malloc(length + m_Length + 1)
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[1] | 355 | If newChars = 0 Then Return -1
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| 356 |
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[31] | 357 | memcpy(newChars, Chars, startIndex)
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[1] | 358 | memcpy(newChars + startIndex, lpszText, length)
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[31] | 359 | memcpy(newChars + startIndex + length, Chars + startIndex, m_Length - startIndex + 1)
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[1] | 360 |
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[31] | 361 | _System_free(Chars)
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| 362 | Chars = newChars
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[30] | 363 | m_Length = length + m_Length
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| 364 | Return m_Length
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[1] | 365 | End Function
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| 366 |
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| 367 | Function SubString(startIndex As Long) As String
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[30] | 368 | Return SubString(startIndex, m_Length - startIndex)
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[1] | 369 | End Function
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| 370 |
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| 371 | Function SubString(startIndex As Long, length As Long) As String
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| 372 | If startIndex < 0 Or length <= 0 Then Return ""
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[30] | 373 | If startIndex + length > m_Length Then Return ""
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[1] | 374 |
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| 375 | Dim temp As String
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| 376 | temp.AllocStringBuffer(length)
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[31] | 377 | memcpy(temp.Chars, VarPtr(Chars[startIndex]), length)
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| 378 | Chars[m_Length] = 0
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[1] | 379 | Return temp
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| 380 | End Function
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| 381 |
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| 382 | Function Remove(startIndex As Long) As Long
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[30] | 383 | If startIndex < 0 Or startIndex > m_Length Then Return -1
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[31] | 384 | Chars[startIndex] = 0
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[30] | 385 | m_Length = startIndex
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| 386 | Return m_Length
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[1] | 387 | End Function
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| 388 |
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| 389 | Function Remove(startIndex As Long, count As Long) As Long
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| 390 | If startIndex < 0 Or count < 0 Then Return -1
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[30] | 391 | If startIndex + count > m_Length Then Return -1
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[1] | 392 |
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[119] | 393 | Dim newChars As *Char
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[30] | 394 | newChars = _System_malloc(m_Length - count + 1)
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[1] | 395 | If newChars = 0 Then Return -1
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| 396 |
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[31] | 397 | memcpy(newChars, Chars, startIndex)
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| 398 | memcpy(newChars + startIndex, Chars + startIndex + count, m_Length - startIndex - count)
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[30] | 399 | newChars[m_Length - count] = 0
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[1] | 400 |
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[31] | 401 | _System_free(Chars)
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| 402 | Chars = newChars
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[30] | 403 | m_Length = m_Length - count
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| 404 | Return m_Length
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[1] | 405 | End Function
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| 406 |
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| 407 | Function IsNullOrEmpty() As BOOL
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[30] | 408 | If m_Length = 0 Then
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[1] | 409 | Return _System_TRUE
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| 410 | Else
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| 411 | Return _System_FALSE
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| 412 | End If
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| 413 | End Function
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| 414 |
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[119] | 415 |
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| 416 | Sub Replace(oldChar As Char, newChar As Char)
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[1] | 417 | Dim i As Long
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[30] | 418 | For i = 0 To ELM(m_Length)
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[31] | 419 | If Chars[i] = oldChar Then
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| 420 | Chars[i] = newChar
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[1] | 421 | End If
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| 422 | Next
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| 423 | End Sub
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| 424 |
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| 425 | Sub Replace(ByRef oldStr As String, ByRef newStr As String)
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[30] | 426 | Replace(oldStr, oldStr.m_Length, newStr, newStr.m_Length)
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[1] | 427 | End Sub
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| 428 |
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| 429 | Sub Replace(oldStr As PCSTR, newStr As PCSTR)
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| 430 | Replace(oldStr, lstrlen(oldStr), newStr, lstrlen(newStr))
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| 431 | End Sub
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| 432 |
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| 433 | Sub Replace(oldStr As PCSTR, oldLen As Long, newStr As PCSTR, newLen As Long)
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| 434 | Dim tempString As String
|
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| 435 | With tempString
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| 436 | Dim current = 0 As Long
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| 437 | Do
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| 438 | Dim pos As Long
|
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| 439 | pos = IndexOf(oldStr, current)
|
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| 440 | If pos = -1 Then
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| 441 | Exit Do
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| 442 | End If
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[31] | 443 | .Append(Chars + current, pos - current)
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[1] | 444 | .Append(newStr, newLen)
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| 445 | current = pos + oldLen
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| 446 | Loop
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[31] | 447 | .Append(Chars + current, m_Length - current)
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[1] | 448 | End With
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| 449 | Swap(tempString)
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| 450 | End Sub
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| 451 |
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| 452 | Sub ToLower()
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[31] | 453 | CharLower(Chars)
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[1] | 454 | End Sub
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| 455 |
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| 456 | Sub ToUpper()
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[31] | 457 | CharUpper(Chars)
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[1] | 458 | End Sub
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| 459 |
|
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| 460 | Sub Swap(ByRef x As String)
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| 461 | Dim tempLen As Long
|
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| 462 | Dim tempChars As PSTR
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[30] | 463 | tempLen = x.m_Length
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[31] | 464 | tempChars = x.Chars
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[30] | 465 | x.m_Length = This.m_Length
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[31] | 466 | x.Chars = This.Chars
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[30] | 467 | This.m_Length = tempLen
|
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[31] | 468 | This.Chars = tempChars
|
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[1] | 469 | End Sub
|
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| 470 |
|
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[119] | 471 | Override Function ToString() As String
|
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| 472 | Return This
|
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| 473 | End Function
|
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| 474 |
|
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[1] | 475 | Private
|
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| 476 | ' 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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[119] | 477 | Function AllocStringBuffer(textLength As Long) As *Char
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[1] | 478 | If textLength < 0 Then
|
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| 479 | Return 0
|
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[30] | 480 | ElseIf textLength > m_Length Then
|
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[31] | 481 | AllocStringBuffer = _System_realloc(Chars, textLength + 1)
|
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[1] | 482 | If AllocStringBuffer <> 0 Then
|
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[30] | 483 | m_Length = textLength
|
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[31] | 484 | Chars = AllocStringBuffer
|
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[1] | 485 | End If
|
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| 486 | Else
|
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[30] | 487 | m_Length = textLength
|
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[31] | 488 | AllocStringBuffer = Chars
|
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[1] | 489 | End If
|
---|
| 490 | End Function
|
---|
| 491 |
|
---|
| 492 | End Class
|
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| 493 |
|
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