[1] | 1 | Class String
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| 2 | Public
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| 3 | Chars As LPSTR
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| 4 | Length As Long
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| 5 |
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| 6 | Sub String()
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| 7 | Chars = _System_calloc(1)
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| 8 | Length = 0
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| 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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| 15 | /*
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| 16 | Sub String(ByRef initStr As String)
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| 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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| 31 | _System_free(Chars)
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| 32 | Chars = 0
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| 33 | #ifdef _DEBUG
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| 34 | Length = 0
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| 35 | #endif
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| 36 | End Sub
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| 37 |
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| 38 | Function Operator() As LPSTR
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| 39 | Return Chars
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| 40 | End Function
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| 41 |
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| 42 | Sub Operator = (ByRef objString As String)
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| 43 | Assign(objString.Chars, objString.Length)
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| 44 | End Sub
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| 45 |
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| 46 | Sub Operator = (text As LPSTR)
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| 47 | Assign(text)
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| 48 | End Sub
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| 49 |
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| 50 | Function Operator[] (n As Long) As Byte
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| 51 | Return Chars[n]
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| 52 | End Function
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| 53 |
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| 54 | Sub Operator[]= (n As Long, c As Byte)
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| 55 | Chars[n] = c
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| 56 | End Sub
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| 57 |
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| 58 | Function Operator+ (lpszText As LPSTR) As String
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| 59 | Return Concat(lpszText, lstrlen(lpszText))
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| 60 | End Function
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| 61 |
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| 62 | Function Operator+ (ByRef objString As String) As String
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| 63 | Return Concat(objString, objString.Length)
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| 64 | End Function
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| 65 |
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| 66 | Function Operator& (lpszText As LPSTR) As String
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| 67 | Dim tempString As String
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| 68 | tempString=This+lpszText
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| 69 | Return tempString
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| 70 | End Function
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| 71 |
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| 72 | Function Operator& (ByRef objString As String) As String
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| 73 | Dim tempString As String
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| 74 | tempString=This+objString
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| 75 | Return tempString
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| 76 | End Function
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| 77 |
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| 78 | Function Operator== (ByRef objString As String) As Long
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| 79 | If lstrcmp(This, objString) = 0 Then
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| 80 | Return _System_TRUE
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| 81 | Else
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| 82 | Return _System_FALSE
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| 83 | End If
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| 84 | End Function
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| 85 |
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| 86 | Function Operator== (lpszText As LPSTR) As Long
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| 87 | If lstrcmp(This, lpszText) = 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<> (ByRef objString As String) As Long
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| 95 | Return lstrcmp(This, objString)
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| 96 | End Function
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| 97 |
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| 98 | Function Operator<> (lpszText As LPSTR) As Long
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| 99 | Return lstrcmp(This, lpszText)
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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 | If lstrcmp(This, objString) < 0 Then
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| 104 | Return _System_TRUE
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| 105 | Else
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| 106 | Return _System_FALSE
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| 107 | End If
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| 108 | End Function
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| 109 |
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| 110 | Function Operator< (lpszText As LPSTR) As Long
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| 111 | If lstrcmp(This, lpszText) < 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> (ByRef objString As String) As Long
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| 119 | If lstrcmp(This, objString) > 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> (lpszText As LPSTR) As Long
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| 127 | If lstrcmp(This, lpszText) > 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<= (ByRef objString As String) As Long
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| 135 | If lstrcmp(This, objString) <= 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<= (lpszText As LPSTR) As Long
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| 143 | If lstrcmp(This, lpszText) <= 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>= (ByRef objString As String) As Long
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| 151 | If lstrcmp(This, objString) => 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>= (lpszText As LPSTR) As Long
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| 159 | If lstrcmp(This, lpszText) => 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 StrPtr() As LPSTR
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| 167 | Return Chars
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| 168 | End Function
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| 169 |
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| 170 | Sub ReSize(allocLength As Long)
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| 171 | If allocLength < 0 Then Exit Sub
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| 172 | If allocLength > Length Then
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| 173 | Dim oldLength As Long
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| 174 | oldLength = Length
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| 175 | If AllocStringBuffer(allocLength) <> 0 Then
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| 176 | ZeroMemory(Chars + oldLength, Length - oldLength + 1)
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| 177 | End If
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| 178 | Else
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| 179 | Length = allocLength
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| 180 | Chars[Length] = 0
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| 181 | End If
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| 182 | End Sub
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| 183 |
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| 184 | Sub ReSize(allocLength As Long, c As Byte)
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| 185 | If allocLength < 0 Then
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| 186 | Exit Sub
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| 187 | ElseIf allocLength > Length Then
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| 188 | Dim oldLength As Long
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| 189 | oldLength = Length
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| 190 | If AllocStringBuffer(allocLength) <> 0 Then
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| 191 | FillMemory(Chars + oldLength, Length - oldLength, c)
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| 192 | End If
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| 193 | Else
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| 194 | Length = allocLength
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| 195 | End If
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| 196 | Chars[Length] = 0
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| 197 | End Sub
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| 198 |
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| 199 | Sub Assign(lpszText As LPSTR, textLength As Long)
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| 200 | If lpszText = Chars Then Exit Sub
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| 201 | If AllocStringBuffer(textLength) <> 0 Then
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| 202 | memcpy(Chars, lpszText, textLength)
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| 203 | Chars[Length] = 0
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| 204 | End If
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| 205 | End Sub
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| 206 |
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| 207 | Sub Assign(ByRef objString As String)
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| 208 | Assign(objString.Chars, objString.Length)
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| 209 | End Sub
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| 210 |
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| 211 | Sub Assign(lpszText As LPSTR)
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| 212 | If lpszText Then
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| 213 | Assign(lpszText, lstrlen(lpszText))
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| 214 | Else
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| 215 | 'Chars=_System_realloc(Chars,1)
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| 216 | Chars[0] = 0
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| 217 | Length = 0
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| 218 | End If
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| 219 | End Sub
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| 220 |
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| 221 | Sub Append(lpszText As LPSTR, textLength As Long)
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| 222 | Dim prevLen As Long
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| 223 | prevLen = Length
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| 224 | If AllocStringBuffer(Length + textLength) <> 0 Then
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| 225 | memcpy(Chars + prevLen, lpszText, textLength)
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| 226 | Chars[Length] = 0
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| 227 | End If
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| 228 | End Sub
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| 229 |
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| 230 | Sub Append(text As LPSTR)
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| 231 | Append(text, lstrlen(text))
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| 232 | End Sub
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| 233 |
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| 234 | Sub Append(ByRef str As String)
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| 235 | Append(str.Chars, str.Length)
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| 236 | End Sub
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| 237 |
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| 238 | Function Concat(lpszText As LPSTR, textLength As Long) As String
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| 239 | Dim tempString As String
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| 240 | With tempString
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| 241 | .AllocStringBuffer(This.Length + textLength)
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| 242 | memcpy(.Chars, This.Chars, This.Length)
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| 243 | memcpy(.Chars + This.Length, lpszText, textLength)
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| 244 | .Chars[.Length] = 0
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| 245 | End With
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| 246 | Return tempString
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| 247 | End Function
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| 248 |
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| 249 | Function Contains(ByRef objString As String) As BOOL
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| 250 | If IndexOf(objString, 0, Length) >= 0 Then
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| 251 | Return _System_TRUE
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| 252 | Else
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| 253 | Return _System_FALSE
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| 254 | End If
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| 255 | End Function
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| 256 |
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| 257 | Function Contains(lpszText As LPSTR) As BOOL
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| 258 | If IndexOf(lpszText, 0, Length) >= 0 Then
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| 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 IndexOf(lpszText As LPSTR) As Long
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| 266 | Return IndexOf(lpszText, 0, Length)
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| 267 | End Function
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| 268 |
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| 269 | Function IndexOf(lpszText As LPSTR, startIndex As Long) As Long
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| 270 | Return IndexOf(lpszText, startIndex, Length - startIndex)
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| 271 | End Function
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| 272 |
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| 273 | Function IndexOf(lpszText As LPSTR, startIndex As Long, count As Long) As Long
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| 274 | Dim length As Long
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| 275 | length = lstrlen(lpszText)
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| 276 |
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| 277 | If startIndex < 0 Then Return -1
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| 278 | If count < 1 Or count + startIndex > Length Then Return -1
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| 279 | If length > Length Then Return -1
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| 280 |
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| 281 | If length = 0 Then Return startIndex
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| 282 |
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| 283 | Dim i As Long, j As Long
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| 284 | For i = startIndex To startIndex + count - 1
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| 285 | For j = 0 To length - 1
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| 286 | If Chars[i + j] = lpszText[j] Then
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| 287 | If j = length - 1 Then Return i
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| 288 | Else
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| 289 | Exit For
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| 290 | End If
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| 291 | Next
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| 292 | Next
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| 293 | Return -1
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| 294 | End Function
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| 295 |
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| 296 | Function LastIndexOf(lpszText As LPSTR) As Long
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| 297 | Return LastIndexOf(lpszText, Length - 1, Length)
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| 298 | End Function
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| 299 |
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| 300 | Function LastIndexOf(lpszText As LPSTR, startIndex As Long) As Long
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| 301 | Return LastIndexOf(lpszText As LPSTR, startIndex, startIndex + 1)
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| 302 | End Function
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| 303 |
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| 304 | Function LastIndexOf(lpszText As LPSTR, startIndex As Long, count As Long) As Long
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| 305 | Dim length As Long
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| 306 | length = lstrlen(lpszText)
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| 307 |
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| 308 | If startIndex < 0 Or startIndex > Length - 1 Then Return -1
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| 309 | If count < 1 Or count > startIndex + 2 Then Return -1
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| 310 | If length > Length Then Return -1
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| 311 |
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| 312 | If length = 0 Then Return startIndex
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| 313 |
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| 314 | Dim i As Long, j As Long
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| 315 | For i = startIndex To startIndex - count + 1 Step -1
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| 316 | For j = length - 1 To 0 Step -1
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| 317 | If Chars[i + j] = lpszText[j] Then
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| 318 | If j = 0 Then Return i
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| 319 | Else
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| 320 | Exit For
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| 321 | End If
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| 322 | Next
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| 323 | Next
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| 324 | Return -1
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| 325 | End Function
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| 326 |
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| 327 | Function StartsWith(lpszText As LPSTR) As BOOL
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| 328 | If IndexOf(lpszText) = 0 Then
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| 329 | Return _System_TRUE
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| 330 | Else
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| 331 | Return _System_FALSE
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| 332 | End If
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| 333 | End Function
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| 334 |
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| 335 | Function EndsWith(lpszText As LPSTR) As BOOL
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| 336 | If LastIndexOf(lpszText) = Length - lstrlen(lpszText) 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 Insert(startIndex As Long, lpszText As LPSTR) As Long
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| 344 | Dim length As Long
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| 345 | length = lstrlen(lpszText)
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| 346 |
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| 347 | If startIndex < 0 Or startIndex > Length Then Return -1
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| 348 |
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| 349 | Dim newChars As LPSTR
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| 350 | newChars = _System_malloc(length + Length + 1)
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| 351 | If newChars = 0 Then Return -1
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| 352 |
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| 353 | memcpy(newChars, Chars, startIndex)
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| 354 | memcpy(newChars + startIndex, lpszText, length)
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| 355 | memcpy(newChars + startIndex + length, Chars + startIndex, Length - startIndex + 1)
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| 356 |
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| 357 | _System_free(Chars)
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| 358 | Chars = newChars
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| 359 | Length = length + Length
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| 360 | Return Length
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| 361 | End Function
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| 362 |
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| 363 | Function SubString(startIndex As Long) As String
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| 364 | Return SubString(startIndex, Length - startIndex)
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| 365 | End Function
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| 366 |
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| 367 | Function SubString(startIndex As Long, length As Long) As String
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| 368 | If startIndex < 0 Or length <= 0 Then Return ""
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| 369 | If startIndex + length > Length Then Return ""
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| 370 |
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| 371 | Dim temp As String
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| 372 | temp.AllocStringBuffer(length)
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| 373 | memcpy(temp.Chars, VarPtr(Chars[startIndex]), length)
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| 374 | Chars[Length] = 0
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| 375 | Return temp
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| 376 | End Function
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| 377 |
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| 378 | Function Remove(startIndex As Long) As Long
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| 379 | If startIndex < 0 Or startIndex > Length Then Return -1
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| 380 | Chars[startIndex] = 0
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| 381 | Length = startIndex
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| 382 | Return Length
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| 383 | End Function
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| 384 |
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| 385 | Function Remove(startIndex As Long, count As Long) As Long
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| 386 | If startIndex < 0 Or count < 0 Then Return -1
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| 387 | If startIndex + count > Length Then Return -1
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| 388 |
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| 389 | Dim newChars As LPSTR
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| 390 | newChars = _System_malloc(Length - count + 1)
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| 391 | If newChars = 0 Then Return -1
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| 392 |
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| 393 | memcpy(newChars, Chars, startIndex)
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| 394 | memcpy(newChars + startIndex, Chars + startIndex + count, Length - startIndex - count)
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| 395 | newChars[Length - count] = 0
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| 396 |
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| 397 | _System_free(Chars)
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| 398 | Chars = newChars
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| 399 | Length = Length - count
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| 400 | Return Length
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| 401 | End Function
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| 402 |
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| 403 | Function IsNullOrEmpty() As BOOL
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| 404 | If Length = 0 Then
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| 405 | Return _System_TRUE
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| 406 | Else
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| 407 | Return _System_FALSE
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| 408 | End If
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| 409 | End Function
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| 410 |
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| 411 | Sub Replace(oldChar As Byte, newChar As Byte)
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| 412 | Dim i As Long
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| 413 | For i = 0 To ELM(Length)
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| 414 | If Chars[i] = oldChar Then
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| 415 | Chars[i] = newChar
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| 416 | End If
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| 417 | Next
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| 418 | End Sub
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| 419 |
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| 420 | Sub Replace(ByRef oldStr As String, ByRef newStr As String)
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| 421 | Replace(oldStr, oldStr.Length, newStr, newStr.Length)
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| 422 | End Sub
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| 423 |
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| 424 | Sub Replace(oldStr As PCSTR, newStr As PCSTR)
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| 425 | Replace(oldStr, lstrlen(oldStr), newStr, lstrlen(newStr))
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| 426 | End Sub
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| 427 |
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| 428 | Sub Replace(oldStr As PCSTR, oldLen As Long, newStr As PCSTR, newLen As Long)
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| 429 | Dim tempString As String
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| 430 | With tempString
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| 431 | Dim current = 0 As Long
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| 432 | Do
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| 433 | Dim pos As Long
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| 434 | pos = IndexOf(oldStr, current)
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| 435 | If pos = -1 Then
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| 436 | Exit Do
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| 437 | End If
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| 438 | .Append(Chars + current, pos - current)
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| 439 | .Append(newStr, newLen)
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| 440 | current = pos + oldLen
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| 441 | Loop
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| 442 | .Append(Chars + current, Length - current)
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| 443 | End With
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| 444 | Swap(tempString)
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| 445 | End Sub
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| 446 |
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| 447 | Sub ToLower()
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| 448 | CharLower(Chars)
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| 449 | End Sub
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| 450 |
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| 451 | Sub ToUpper()
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| 452 | CharUpper(Chars)
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| 453 | End Sub
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| 454 |
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| 455 | Sub Swap(ByRef x As String)
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| 456 | Dim tempLen As Long
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| 457 | Dim tempChars As PSTR
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| 458 | tempLen = x.Length
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| 459 | tempChars = x.Chars
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| 460 | x.Length = This.Length
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| 461 | x.Chars = This.Chars
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| 462 | This.Length = tempLen
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| 463 | This.Chars = tempChars
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| 464 | End Sub
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| 465 |
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| 466 | Private
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| 467 | ' 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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| 468 | Function AllocStringBuffer(textLength As Long) As LPSTR
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| 469 | If textLength < 0 Then
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| 470 | Return 0
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| 471 | ElseIf textLength > Length Then
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| 472 | AllocStringBuffer = _System_realloc(Chars, textLength + 1)
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| 473 | If AllocStringBuffer <> 0 Then
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| 474 | Length = textLength
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| 475 | Chars = AllocStringBuffer
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| 476 | End If
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| 477 | Else
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| 478 | Length = textLength
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| 479 | AllocStringBuffer = Chars
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| 480 | End If
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| 481 | End Function
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| 482 |
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| 483 | End Class
|
---|
| 484 |
|
---|