1 | ' Classes/System/String.ab
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2 |
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3 | Namespace System
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4 |
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5 | Class String
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6 | Implements /*ICloneable, IConvertible, IComparable<String>, IEnumerable<Char>, IEquatable<String>*/
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7 |
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8 | m_Length As Long
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9 | Chars As *Char
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10 |
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11 | Sub validPointerCheck(p As VoidPtr, size = 1 As Long)
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12 | If p = 0 Then
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13 | Throw New ArgumentException
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14 | ElseIf IsBadReadPtr(p, size As ULONG_PTR) Then
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15 | Throw New ArgumentException
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16 | End If
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17 | End Sub
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18 | Public
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19 | Static Const Empty = New String
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20 |
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21 | Sub String()
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22 | ' Chars = 0
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23 | ' m_Length = 0
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24 | End Sub
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25 |
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26 | Sub String(initStr As PCWSTR)
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27 | validPointerCheck(initStr)
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28 | Assign(initStr, lstrlenW(initStr))
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29 | End Sub
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30 |
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31 | Sub String(initStr As PCWSTR, length As Long)
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32 | validPointerCheck(initStr, length)
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33 | Assign(initStr, length)
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34 | End Sub
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35 |
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36 | Sub String(initStr As PCWSTR, start As Long, length As Long)
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37 | If start < 0 Or length < 0 Then
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38 | Throw New ArgumentOutOfRangeException("start or length or both")
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39 | End If
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40 | validPointerCheck(VarPtr(initStr[start]), length)
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41 | Assign(VarPtr(initStr[start]), length)
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42 | End Sub
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43 |
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44 | Sub String(initStr As PCSTR)
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45 | validPointerCheck(initStr)
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46 | Assign(initStr, lstrlenA(initStr))
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47 | End Sub
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48 |
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49 | Sub String(initStr As PCSTR, length As Long)
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50 | validPointerCheck(initStr, length)
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51 | Assign(initStr, length)
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52 | End Sub
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53 |
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54 | Sub String(initStr As PCSTR, start As Long, length As Long)
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55 | If start < 0 Or length < 0 Then
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56 | Throw New ArgumentOutOfRangeException("String constructor: One or more arguments are out of range value.", "start or length or both")
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57 | End If
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58 | validPointerCheck(initStr + start, length)
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59 | Assign(initStr + start, length)
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60 | End Sub
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61 |
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62 | Sub String(initChar As Char, length As Long)
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63 | AllocStringBuffer(length)
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64 | ActiveBasic.Strings.ChrFill(Chars, length, initChar)
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65 | Chars[length] = 0
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66 | End Sub
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67 |
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68 | Sub String(sb As Text.StringBuilder)
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69 | Chars = StrPtr(sb)
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70 | m_Length = sb.Length
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71 | sb.__Stringized()
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72 | End Sub
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73 |
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74 | Const Function Length() As Long
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75 | Return m_Length
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76 | End Function
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77 |
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78 | Function Operator() As *Char
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79 | Return Chars
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80 | End Function
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81 |
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82 | Const Function Operator [] (n As Long) As Char
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83 | rangeCheck(n)
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84 | Return Chars[n]
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85 | End Function
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86 |
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87 | Const Function Operator + (y As PCSTR) As String
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88 | If y = 0 Then
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89 | Return This
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90 | Else
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91 | Return Concat(y, lstrlenA(y))
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92 | End If
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93 | End Function
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94 |
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95 | Const Function Operator + (y As PCWSTR) As String
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96 | If y = 0 Then
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97 | Return This
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98 | Else
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99 | Return Concat(y, lstrlenW(y))
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100 | End If
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101 | End Function
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102 |
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103 | Const Function Operator + (y As String) As String
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104 | If ActiveBasic.IsNothing(y) Then
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105 | Return This
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106 | Else
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107 | Return Concat(y.Chars, y.m_Length)
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108 | End If
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109 | End Function
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110 |
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111 | Const Function Operator & (y As PCSTR) As String
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112 | Return This + y
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113 | End Function
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114 |
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115 | Const Function Operator & (y As PCWSTR) As String
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116 | Return This + y
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117 | End Function
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118 |
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119 | Const Function Operator & (y As String) As String
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120 | Return This + y
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121 | End Function
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122 |
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123 | Const Function Operator == (y As String) As Boolean
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124 | Return CompareOrdinal(This, y) = 0
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125 | End Function
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126 |
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127 | Const Function Operator == (y As *Char) As Boolean
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128 | Return CompareOrdinal(This, y) = 0
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129 | End Function
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130 |
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131 | Const Function Operator <> (y As String) As Boolean
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132 | Return CompareOrdinal(This, y) <> 0
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133 | End Function
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134 |
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135 | Const Function Operator <> (y As *Char) As Boolean
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136 | Return CompareOrdinal(This, y) <> 0
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137 | End Function
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138 |
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139 | Const Function Operator < (y As String) As Boolean
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140 | Return CompareOrdinal(This, y) < 0
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141 | End Function
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142 |
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143 | Const Function Operator < (y As *Char) As Boolean
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144 | Return CompareOrdinal(This, y) < 0
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145 | End Function
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146 |
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147 | Const Function Operator > (y As String) As Boolean
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148 | Return CompareOrdinal(This, y) > 0
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149 | End Function
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150 |
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151 | Const Function Operator > (y As *Char) As Boolean
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152 | Return CompareOrdinal(This, y) > 0
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153 | End Function
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154 |
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155 | Const Function Operator <= (y As String) As Boolean
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156 | Return CompareOrdinal(This, y) <= 0
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157 | End Function
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158 |
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159 | Const Function Operator <= (y As *Char) As Boolean
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160 | Return CompareOrdinal(This, y) <= 0
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161 | End Function
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162 |
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163 | Const Function Operator >= (y As String) As Boolean
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164 | Return CompareOrdinal(This, y) >= 0
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165 | End Function
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166 |
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167 | Const Function Operator >= (y As *Char) As Boolean
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168 | Return CompareOrdinal(This, y) >= 0
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169 | End Function
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170 |
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171 | /*!
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172 | @brief 単語順での文字列比較
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173 | @auther Egtra
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174 | */
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175 | Static Function Compare(x As String, y As String) As Long
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176 | Return Compare(x, y, False)
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177 | End Function
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178 |
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179 | Static Function Compare(x As String, y As String, ignoreCase As Boolean) As Long
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180 | Dim lhs = removeNull(x)
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181 | Dim rhs = removeNull(y)
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182 | Return compareImpl(lhs.Chars, lhs.Length, rhs.Chars, rhs.Length, ignoreCase)
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183 | End Function
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184 |
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185 | Static Function Compare(x As String, indexX As Long, y As String, indexY As Long, length As Long) As Long
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186 | Return Compare(x, indexX, y, indexY, length, False)
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187 | End Function
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188 |
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189 | Static Function Compare(x As String, indexX As Long, y As String, indexY As Long, length As Long, ignoreCase As Boolean) As Long
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190 | Dim lhs = removeNull(x)
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191 | Dim rhs = removeNull(y)
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192 | If lhs.Length > indexX Or indexX < 0 Then
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193 | Throw New ArgumentOutOfRangeException("indexX")
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194 | ElseIf rhs.Length > indexY Or indexY < 0 Then
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195 | Throw New ArgumentOutOfRangeException("indexY")
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196 | ElseIf length < 0 Then
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197 | Throw New ArgumentOutOfRangeException("length")
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198 | End If
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199 | Dim cmpLen = Math.Min(Math.Min(lhs.Length - indexX, rhs.Length - indexY), length)
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200 | Return compareImpl(VarPtr(lhs.Chars[indexX]), cmpLen, VarPtr(rhs.Chars[indexY]), cmpLen, ignoreCase)
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201 | End Function
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202 |
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203 | /*!
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204 | @brief 序数での文字列比較
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205 | */
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206 | Static Function CompareOrdinal(x As String, y As String) As Long
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207 | Dim lhs = removeNull(x)
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208 | Dim rhs = removeNull(y)
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209 | Return compareOrdinalImpl(lhs.Chars, lhs.Length, rhs.Chars, rhs.Length)
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210 | End Function
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211 |
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212 | Static Function CompareOrdinal(x As String, indexX As Long, y As String, indexY As Long, length As Long) As Long
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213 | Dim lhs = removeNull(x)
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214 | Dim rhs = removeNull(y)
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215 | If lhs.Length > indexX Or indexX < 0 Then
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216 | Throw New ArgumentOutOfRangeException("indexX")
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217 | ElseIf rhs.Length > indexY Or indexY < 0 Then
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218 | Throw New ArgumentOutOfRangeException("indexY")
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219 | ElseIf length < 0 Then
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220 | Throw New ArgumentOutOfRangeException("length")
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221 | End If
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222 | Dim cmpLen = Math.Min(Math.Min(lhs.Length - indexX, rhs.Length - indexY), length)
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223 | Return compareOrdinalImpl(VarPtr(lhs.Chars[indexX]), cmpLen, VarPtr(rhs.Chars[indexY]), cmpLen)
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224 | End Function
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225 |
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226 | Static Function CompareOrdinal(x As String, y As *Char) As Long
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227 | Dim lhs = removeNull(x)
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228 | Return compareOrdinalImpl(lhs.Chars, lhs.Length, y, lstrlen(y))
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229 | End Function
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230 |
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231 | Private
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232 | Static Function compareImpl(x As *Char, lenX As Long, y As *Char, lenY As Long, ignoreCase As Boolean) As Long
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233 | Dim flags = 0 As DWord
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234 | If ignoreCase Then
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235 | flags = NORM_IGNORECASE
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236 | End If
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237 | Dim ret = CompareString(LOCALE_USER_DEFAULT, ignoreCase, x, lenX, y, lenY)
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238 | Select Case ret
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239 | Case CSTR_LESS_THAN
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240 | compareImpl = -1
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241 | Case CSTR_EQUAL
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242 | compareImpl = 0
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243 | Case CSTR_GREATER_THAN
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244 | compareImpl = 1
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245 | Case Else
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246 | ActiveBasic.Windows.ThrowWithLastError("String.Compare")
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247 | End Select
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248 | End Function
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249 |
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250 | Static Function compareOrdinalImpl(x As *Char, lenX As Long, y As *Char, lenY As Long) As Long
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251 | Return ActiveBasic.Strings.ChrCmp(x, lenX As SIZE_T, y, lenY As SIZE_T)
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252 | End Function
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253 |
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254 | Public
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255 | Function CompareTo(y As String) As Long
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256 | Return String.Compare(This, y)
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257 | End Function
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258 |
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259 | Function CompareTo(y As Object) As Long
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260 | If Not Object.Equals(This.GetType(), y.GetType()) Then
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261 | Throw New ArgumentException("String.CompareTo: y is not String.", "y")
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262 | End If
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263 | Return CompareTo(y As String)
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264 | End Function
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265 |
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266 | Function Equals(s As String) As Boolean
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267 | Return This = s
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268 | End Function
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269 |
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270 | Override Function Equals(s As Object) As Boolean
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271 | If Not ActiveBasic.IsNothing(s) Then
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272 | If Object.Equals(This.GetType(), s.GetType()) Then
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273 | Return This.Equals(s As String)
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274 | End If
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275 | End If
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276 | Return False
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277 | End Function
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278 |
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279 | Const Function StrPtr() As *Char
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280 | Return Chars
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281 | End Function
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282 | Private
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283 |
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284 | Sub Assign(text As PCSTR, textLengthA As Long)
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285 | #ifdef UNICODE
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286 | Dim textLengthW = MultiByteToWideChar(CP_THREAD_ACP, 0, text, textLengthA, 0, 0)
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287 | AllocStringBuffer(textLengthW)
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288 | MultiByteToWideChar(CP_THREAD_ACP, 0, text, textLengthA, Chars, textLengthW)
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289 | Chars[textLengthW] = 0
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290 | #else
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291 | AssignFromCharPtr(text, textLengthA)
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292 | #endif
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293 | End Sub
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294 |
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295 | Sub Assign(text As PCWSTR, textLengthW As Long)
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296 | #ifdef UNICODE
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297 | AssignFromCharPtr(text, textLengthW)
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298 | #else
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299 | Dim textLengthA = WideCharToMultiByte(CP_THREAD_ACP, 0, text, textLengthW, 0, 0, 0, 0)
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300 | AllocStringBuffer(textLengthA)
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301 | WideCharToMultiByte(CP_THREAD_ACP, 0, text, textLengthW, Chars, textLengthA, 0, 0)
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302 | Chars[textLengthA] = 0
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303 | #endif
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304 | End Sub
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305 |
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306 | Private
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307 | Static Function ConcatChar(text1 As *Char, text1Length As Long, text2 As *Char, text2Length As Long) As String
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308 | ConcatChar = New String()
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309 | With ConcatChar
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310 | .AllocStringBuffer(text1Length + text2Length)
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311 | ActiveBasic.Strings.ChrCopy(.Chars, text1, text1Length As SIZE_T)
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312 | ActiveBasic.Strings.ChrCopy(VarPtr(.Chars[text1Length]), text2, text2Length As SIZE_T)
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313 | .Chars[text1Length + text2Length] = 0
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314 | End With
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315 | End Function
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316 | Public
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317 | Const Function Concat(text As PCSTR, len As Long) As String
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318 | #ifdef UNICODE
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319 | With Concat
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320 | Dim lenW = MultiByteToWideChar(CP_THREAD_ACP, 0, text, len, 0, 0)
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321 | Concat = New String
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322 | .AllocStringBuffer(m_Length + lenW)
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323 | ActiveBasic.Strings.ChrCopy(.Chars, This.Chars, m_Length As SIZE_T)
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324 | MultiByteToWideChar(CP_THREAD_ACP, 0, text, len, VarPtr(.Chars[m_Length]), lenW)
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325 | .Chars[m_Length + lenW] = 0
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326 | End With
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327 | #else
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328 | Return ConcatChar(This.Chars, m_Length, text, len)
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329 | #endif
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330 | End Function
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331 |
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332 | Const Function Concat(text As PCWSTR, len As Long) As String
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333 | #ifdef UNICODE
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334 | Return ConcatChar(This.Chars, m_Length, text, len)
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335 | #else
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336 | With Concat
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337 | Concat = New String
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338 | Dim lenA = WideCharToMultiByte(CP_THREAD_ACP, 0, text, len, 0, 0, 0, 0)
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339 | .AllocStringBuffer(m_Length + lenA)
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340 | ActiveBasic.Strings.ChrCopy(.Chars, This.Chars, m_Length As SIZE_T)
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341 | WideCharToMultiByte(CP_THREAD_ACP, 0, text, len, VarPtr(.Chars[m_Length]), lenA, 0, 0)
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342 | .Chars[m_Length + lenA] = 0
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343 | End With
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344 | #endif
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345 | End Function
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346 |
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347 | Static Function Concat(x As String, y As String) As String
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348 | If IsNullOrEmpty(x) Then
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349 | Return y
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350 | Else
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351 | Return x.Concat(y.Chars, y.m_Length)
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352 | End If
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353 | End Function
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354 |
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355 | Static Function Concat(x As String, y As String, z As String) As String
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356 | Dim sb = New Text.StringBuilder(removeNull(x).Length + removeNull(y).Length + removeNull(z).Length)
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357 | sb.Append(x).Append(y).Append(z)
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358 | Concat = sb.ToString
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359 | End Function
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360 |
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361 | Static Function Concat(x As String, y As String, z As String, w As String) As String
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362 | Dim sb = New Text.StringBuilder(removeNull(x).Length + removeNull(y).Length + removeNull(z).Length + removeNull(w).Length)
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363 | sb.Append(x).Append(y).Append(z).Append(w)
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364 | Concat = sb.ToString
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365 | End Function
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366 |
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367 | Static Function Concat(x As Object, y As Object) As String
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368 | Return Concat(x.ToString, y.ToString)
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369 | End Function
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370 |
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371 | Static Function Concat(x As Object, y As Object, z As Object) As String
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372 | Return Concat(x.ToString, y.ToString, z.ToString)
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373 | End Function
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374 |
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375 | Static Function Concat(x As Object, y As Object, z As Object, w As Object) As String
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376 | Return Concat(x.ToString, y.ToString, z.ToString, w.ToString)
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377 | End Function
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378 |
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379 | Const Function Contains(c As Char) As Boolean
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380 | Return IndexOf(c) >= 0
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381 | End Function
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382 |
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383 | Const Function Contains(s As String) As Boolean
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384 | If ActiveBasic.IsNothing(s) Then
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385 | Throw New ArgumentNullException("String.Contains: An argument is null value.", "s")
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386 | ElseIf s = "" Then
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387 | Return True
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388 | Else
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389 | Return IndexOf(s, 0, m_Length) >= 0
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390 | End If
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391 | End Function
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392 |
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393 | Const Function IndexOf(c As Char) As Long
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394 | Return indexOfCore(c, 0, m_Length)
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395 | End Function
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396 |
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397 | Const Function IndexOf(c As Char, start As Long) As Long
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398 | rangeCheck(start)
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399 | Return indexOfCore(c, start, m_Length - start)
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400 | End Function
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401 |
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402 | Const Function IndexOf(c As Char, start As Long, count As Long) As Long
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403 | rangeCheck(start, count)
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404 | Return indexOfCore(c, start, count)
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405 | End Function
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406 | Private
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407 | Const Function indexOfCore(c As Char, start As Long, count As Long) As Long
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408 | indexOfCore = ActiveBasic.Strings.ChrFind(VarPtr(Chars[start]), count, c) As Long
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409 | If indexOfCore <> -1 Then
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410 | indexOfCore += start
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411 | End If
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412 | End Function
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413 | Public
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414 | Const Function IndexOf(s As String) As Long
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415 | Return IndexOf(s, 0, m_Length)
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416 | End Function
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417 |
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418 | Const Function IndexOf(s As String, startIndex As Long) As Long
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419 | Return IndexOf(s, startIndex, m_Length - startIndex)
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420 | End Function
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421 |
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422 | Const Function IndexOf(s As String, startIndex As Long, count As Long) As Long
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423 | rangeCheck(startIndex, count)
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424 | If ActiveBasic.IsNothing(s) Then
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425 | Throw New ArgumentNullException("String.IndexOf: An argument is out of range value.", "s")
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426 | End If
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427 |
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428 | Dim length = s.Length
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429 | If length = 0 Then Return startIndex
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430 |
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431 | Dim i As Long, j As Long
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432 | For i = startIndex To startIndex + count - 1
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433 | For j = 0 To length - 1
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434 | If Chars[i + j] = s[j] Then
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435 | If j = length - 1 Then Return i
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436 | Else
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437 | Exit For
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438 | End If
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439 | Next
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440 | Next
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441 | Return -1
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442 | End Function
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443 |
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444 | Const Function LastIndexOf(c As Char) As Long
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445 | Return lastIndexOf(c, m_Length - 1, m_Length)
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446 | End Function
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447 |
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448 | Const Function LastIndexOf(c As Char, start As Long) As Long
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449 | rangeCheck(start)
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450 | Return lastIndexOf(c, start, start + 1)
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451 | End Function
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452 |
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453 | Const Function LastIndexOf(c As Char, start As Long, count As Long) As Long
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454 | rangeCheck(start)
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455 | Dim lastFindPos = start - (count - 1)
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456 | If Not (m_Length > lastFindPos And lastFindPos >= 0) Then
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457 | Throw New ArgumentOutOfRangeException("String.LastIndexOf: An argument is out of range value.", "count")
|
---|
458 | End If
|
---|
459 | Return lastIndexOf(c, start, count)
|
---|
460 | End Function
|
---|
461 | Private
|
---|
462 | Const Function lastIndexOf(c As Char, start As Long, count As Long) As Long
|
---|
463 | Dim lastFindPos = start - (count - 1)
|
---|
464 | Dim i As Long
|
---|
465 | For i = start To lastFindPos Step -1
|
---|
466 | If Chars[i] = c Then
|
---|
467 | Return i
|
---|
468 | End If
|
---|
469 | Next
|
---|
470 | Return -1
|
---|
471 | End Function
|
---|
472 |
|
---|
473 | Public
|
---|
474 | Const Function LastIndexOf(s As String) As Long
|
---|
475 | Return LastIndexOf(s, m_Length - 1, m_Length)
|
---|
476 | End Function
|
---|
477 |
|
---|
478 | Const Function LastIndexOf(s As String, startIndex As Long) As Long
|
---|
479 | Return LastIndexOf(s, startIndex, startIndex + 1)
|
---|
480 | End Function
|
---|
481 |
|
---|
482 | Const Function LastIndexOf(s As String, start As Long, count As Long) As Long
|
---|
483 | If ActiveBasic.IsNothing(s) Then
|
---|
484 | Throw New ArgumentNullException("String.LastIndexOf: An argument is out of range value.", "s")
|
---|
485 | End If
|
---|
486 |
|
---|
487 | If start < 0 Or start > m_Length - 1 Or _
|
---|
488 | count < 0 Or count > start + 2 Then
|
---|
489 | Throw New ArgumentOutOfRangeException("String.LastIndexOf: One or more arguments are out of range value.", "start or count or both")
|
---|
490 | End If
|
---|
491 | Dim length = s.m_Length
|
---|
492 | If length > m_Length Then Return -1
|
---|
493 | If length = 0 Then Return start
|
---|
494 |
|
---|
495 | Dim i As Long, j As Long
|
---|
496 | For i = start To start - count + 1 Step -1
|
---|
497 | For j = length - 1 To 0 Step -1
|
---|
498 | If Chars[i + j] = s[j] Then
|
---|
499 | If j = 0 Then Return i
|
---|
500 | Else
|
---|
501 | Exit For
|
---|
502 | End If
|
---|
503 | Next
|
---|
504 | Next
|
---|
505 | Return -1
|
---|
506 | End Function
|
---|
507 |
|
---|
508 | Const Function StartsWith(c As Char) As Boolean
|
---|
509 | Return IndexOf(c) = 0
|
---|
510 | End Function
|
---|
511 |
|
---|
512 | Const Function StartsWith(s As String) As Boolean
|
---|
513 | Return IndexOf(s) = 0
|
---|
514 | End Function
|
---|
515 |
|
---|
516 | Const Function EndsWith(c As Char) As Boolean
|
---|
517 | Return LastIndexOf(c) = m_Length - 1
|
---|
518 | End Function
|
---|
519 |
|
---|
520 | Const Function EndsWith(s As String) As Boolean
|
---|
521 | Return LastIndexOf(s) = m_Length - s.Length
|
---|
522 | End Function
|
---|
523 |
|
---|
524 | Const Function Insert(startIndex As Long, text As String) As String
|
---|
525 | Dim sb = New Text.StringBuilder(This)
|
---|
526 | sb.Insert(startIndex, text)
|
---|
527 | Return sb.ToString
|
---|
528 | End Function
|
---|
529 |
|
---|
530 | Const Function Substring(startIndex As Long) As String
|
---|
531 | rangeCheck(startIndex)
|
---|
532 | Return Substring(startIndex, m_Length - startIndex)
|
---|
533 | End Function
|
---|
534 |
|
---|
535 | Const Function Substring(startIndex As Long, length As Long) As String
|
---|
536 | rangeCheck(startIndex, length)
|
---|
537 | Return New String(Chars, startIndex, length)
|
---|
538 | End Function
|
---|
539 |
|
---|
540 | Const Function Remove(startIndex As Long) As String
|
---|
541 | rangeCheck(startIndex)
|
---|
542 | Remove = Substring(0, startIndex)
|
---|
543 | End Function
|
---|
544 |
|
---|
545 | Const Function Remove(startIndex As Long, count As Long) As String
|
---|
546 | Dim sb = New Text.StringBuilder(This)
|
---|
547 | sb.Remove(startIndex, count)
|
---|
548 | Remove = sb.ToString
|
---|
549 | End Function
|
---|
550 |
|
---|
551 | Static Function IsNullOrEmpty(s As String) As Boolean
|
---|
552 | If Not Object.ReferenceEquals(s, Nothing) Then
|
---|
553 | If s.m_Length > 0 Then
|
---|
554 | Return False
|
---|
555 | End If
|
---|
556 | End If
|
---|
557 | Return True
|
---|
558 | End Function
|
---|
559 |
|
---|
560 | Const Function Replace(oldChar As Char, newChar As Char) As String
|
---|
561 | Dim sb = New Text.StringBuilder(This)
|
---|
562 | sb.Replace(oldChar, newChar)
|
---|
563 | Replace = sb.ToString
|
---|
564 | End Function
|
---|
565 |
|
---|
566 | Const Function Replace(oldStr As String, newStr As String) As String
|
---|
567 | Dim sb = New Text.StringBuilder(This)
|
---|
568 | sb.Replace(oldStr, newStr)
|
---|
569 | Return sb.ToString
|
---|
570 | End Function
|
---|
571 |
|
---|
572 | Function Split(separator As System.Collections.Generic.List<String>) As System.Collections.Generic.List<String>
|
---|
573 | Return Split(separator, -1, StringSplitOptions.None)
|
---|
574 | End Function
|
---|
575 |
|
---|
576 | Function Split(separator As System.Collections.Generic.List<String>, options As StringSplitOptions) As System.Collections.Generic.List<String>
|
---|
577 | Return Split(separator, -1, options)
|
---|
578 | End Function
|
---|
579 |
|
---|
580 | Function Split(separator As System.Collections.Generic.List<String>, count As Long, options As StringSplitOptions) As System.Collections.Generic.List<String>
|
---|
581 | Dim split As System.Collections.Generic.List<String>
|
---|
582 | Dim index As Long, t1Index As Long, t2Index As Long
|
---|
583 | Dim s As String, substring As String
|
---|
584 | Dim flag As Boolean
|
---|
585 |
|
---|
586 | Do
|
---|
587 | t1Index = Length
|
---|
588 | flag = True
|
---|
589 | Foreach s In separator
|
---|
590 | t2Index = IndexOf(s, index)
|
---|
591 | If t2Index > -1 Then
|
---|
592 | t1Index = Math.Min(t1Index, t2Index)
|
---|
593 | flag = False
|
---|
594 | End If
|
---|
595 | Next
|
---|
596 |
|
---|
597 | substring = Substring(index, t1Index - index)
|
---|
598 | If Not ( IsNullOrEmpty(substring) and (options = StringSplitOptions.RemoveEmptyEntries) ) Then
|
---|
599 | split.Add(substring)
|
---|
600 | End If
|
---|
601 |
|
---|
602 | If flag Then Return split
|
---|
603 | If split.Count = count Then Return split
|
---|
604 |
|
---|
605 | index = t1Index + 1
|
---|
606 | Loop
|
---|
607 | End Function
|
---|
608 |
|
---|
609 | Static Function Join(separator As String, strings As System.Collections.Generic.List<String>) As String
|
---|
610 | Return Join(separator, strings, 0, strings.Count)
|
---|
611 | End Function
|
---|
612 |
|
---|
613 | Static Function Join(separator As String, strings As System.Collections.Generic.List<String>, startIndex As Long, count As Long) As String
|
---|
614 | If (startIndex+count > strings.Count) or (startIndex < 0) or (count < 1) Then
|
---|
615 | Throw New ArgumentOutOfRangeException("String.Join: One or more arguments are out of range value.", "startIndex or count")
|
---|
616 | End If
|
---|
617 |
|
---|
618 | Dim string As String
|
---|
619 | Dim i As Long
|
---|
620 | For i = startIndex To startIndex + count - 2
|
---|
621 | string += strings[i] + separator
|
---|
622 | Next
|
---|
623 | Return string + strings[i]
|
---|
624 | End Function
|
---|
625 |
|
---|
626 | Const Function ToLower() As String
|
---|
627 | Dim sb = New Text.StringBuilder(m_Length)
|
---|
628 | sb.Length = m_Length
|
---|
629 | Dim i As Long
|
---|
630 | For i = 0 To ELM(m_Length)
|
---|
631 | sb[i] = ActiveBasic.CType.ToLower(Chars[i])
|
---|
632 | Next
|
---|
633 | Return sb.ToString
|
---|
634 | End Function
|
---|
635 |
|
---|
636 | Const Function ToUpper() As String
|
---|
637 | Dim sb = New Text.StringBuilder(m_Length)
|
---|
638 | sb.Length = m_Length
|
---|
639 | Dim i As Long
|
---|
640 | For i = 0 To ELM(m_Length)
|
---|
641 | sb[i] = ActiveBasic.CType.ToUpper(Chars[i])
|
---|
642 | Next
|
---|
643 | Return sb.ToString
|
---|
644 | End Function
|
---|
645 |
|
---|
646 | Override Function ToString() As String
|
---|
647 | ToString = This
|
---|
648 | End Function
|
---|
649 |
|
---|
650 | Const Function Clone() As String
|
---|
651 | Clone = This
|
---|
652 | End Function
|
---|
653 | /*
|
---|
654 | Function Clone() As Object
|
---|
655 | Clone = This
|
---|
656 | End Function
|
---|
657 | */
|
---|
658 | Static Function Copy(s As String) As String
|
---|
659 | Copy = New String(s.Chars, s.m_Length)
|
---|
660 | End Function
|
---|
661 |
|
---|
662 | Sub CopyTo(sourceIndex As Long, destination As *Char, destinationIndex As Long, count As Long)
|
---|
663 | ActiveBasic.Strings.ChrCopy(VarPtr(destination[destinationIndex]), VarPtr(Chars[sourceIndex]), count As SIZE_T)
|
---|
664 | End Sub
|
---|
665 |
|
---|
666 | Override Function GetHashCode() As Long
|
---|
667 | #ifdef UNICODE
|
---|
668 | Dim size = m_Length
|
---|
669 | #else
|
---|
670 | Dim size = (m_Length + 1) >> 1
|
---|
671 | #endif
|
---|
672 | Return _System_GetHashFromWordArray(Chars As *Word, size) Xor m_Length
|
---|
673 | End Function
|
---|
674 |
|
---|
675 | Function PadLeft(total As Long) As String
|
---|
676 | PadLeft(total, &h30 As Char)
|
---|
677 | End Function
|
---|
678 |
|
---|
679 | Function PadLeft(total As Long, c As Char) As String
|
---|
680 | If total < 0 Then
|
---|
681 | Throw New ArgumentOutOfRangeException("String.PadLeft: An arguments is out of range value.", "total")
|
---|
682 | End If
|
---|
683 | If total >= m_Length Then
|
---|
684 | Return This
|
---|
685 | End If
|
---|
686 | Dim sb = New Text.StringBuilder(total)
|
---|
687 | sb.Append(c, total - m_Length)
|
---|
688 | sb.Append(This)
|
---|
689 | Return sb.ToString
|
---|
690 | End Function
|
---|
691 |
|
---|
692 | Function PadRight(total As Long) As String
|
---|
693 | PadRight(total, &h30 As Char)
|
---|
694 | End Function
|
---|
695 |
|
---|
696 | Function PadRight(total As Long, c As Char) As String
|
---|
697 | If total < 0 Then
|
---|
698 | Throw New ArgumentOutOfRangeException("String.PadRight: An arguments is out of range value.", "total")
|
---|
699 | End If
|
---|
700 | If total >= m_Length Then
|
---|
701 | Return This
|
---|
702 | End If
|
---|
703 | Dim sb = New Text.StringBuilder(total)
|
---|
704 | sb.Append(This)
|
---|
705 | sb.Append(c, total - m_Length)
|
---|
706 | Return sb.ToString
|
---|
707 | End Function
|
---|
708 | Private
|
---|
709 | Sub AllocStringBuffer(textLength As Long)
|
---|
710 | If textLength < 0 Then
|
---|
711 | Throw New ArgumentException
|
---|
712 | End If
|
---|
713 | Chars = GC_malloc_atomic(SizeOf(Char) * (textLength + 1))
|
---|
714 | m_Length = textLength
|
---|
715 | End Sub
|
---|
716 |
|
---|
717 | Sub AssignFromCharPtr(text As *Char, textLength As Long)
|
---|
718 | AllocStringBuffer(textLength)
|
---|
719 | ActiveBasic.Strings.ChrCopy(Chars, text, textLength As SIZE_T)
|
---|
720 | Chars[m_Length] = 0
|
---|
721 | End Sub
|
---|
722 |
|
---|
723 | Const Sub rangeCheck(index As Long)
|
---|
724 | If index < 0 Or index > m_Length Then
|
---|
725 | Throw New ArgumentOutOfRangeException("String: An argument is out of range value.", "index")
|
---|
726 | End If
|
---|
727 | End Sub
|
---|
728 |
|
---|
729 | Const Sub rangeCheck(start As Long, length As Long)
|
---|
730 | If start < 0 Or start > This.m_Length Or length < 0 Then
|
---|
731 | Throw New ArgumentOutOfRangeException("String: One or more arguments are out of range value.", "start or length or both")
|
---|
732 | End If
|
---|
733 | End Sub
|
---|
734 |
|
---|
735 | Static Function removeNull(s As String) As String
|
---|
736 | If ActiveBasic.IsNothing(s) Then
|
---|
737 | removeNull = Empty
|
---|
738 | Else
|
---|
739 | removeNull = s
|
---|
740 | End If
|
---|
741 | End Function
|
---|
742 | End Class
|
---|
743 |
|
---|
744 | Enum StringSplitOptions
|
---|
745 | None
|
---|
746 | RemoveEmptyEntries
|
---|
747 | End Enum
|
---|
748 |
|
---|
749 | End Namespace
|
---|