1 | ' Classes/System/String.ab
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2 |
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3 | #require <basic/function.sbp>
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4 | #require <Classes/System/Text/StringBuilder.ab>
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5 | #require <Classes/ActiveBasic/Strings/Strings.ab>
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6 |
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7 | TypeDef StrChar = Char
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8 |
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9 | #ifdef UNICODE
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10 | #define __STRING_IS_UNICODE
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11 | #else
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12 | #define __STRING_IS_NOT_UNICODE
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13 | #endif
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14 |
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15 | Namespace System
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16 |
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17 | Class String
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18 | Implements /*IComparable, ICloneable, IConvertible, IComparable<String>, IEnumerable, IEnumerable<Char>, IEquatable<String>*/
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19 |
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20 | m_Length As Long
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21 | Chars As *Char
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22 |
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23 | Sub validPointerCheck(p As VoidPtr, size = 1 As Long)
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24 | If p As ULONG_PTR < &h10000 Then
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25 | Throw New ArgumentException
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26 | ElseIf IsBadReadPtr(p, size As ULONG_PTR) Then
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27 | Throw New ArgumentException
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28 | End If
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29 | End Sub
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30 | Public
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31 | Static Const Empty = New String
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32 |
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33 | Sub String()
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34 | ' Chars = 0
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35 | ' m_Length = 0
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36 | End Sub
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37 |
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38 | Sub String(initStr As PCWSTR)
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39 | validPointerCheck(initStr)
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40 | Assign(initStr, lstrlenW(initStr))
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41 | End Sub
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42 |
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43 | Sub String(initStr As PCWSTR, length As Long)
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44 | validPointerCheck(initStr, length)
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45 | Assign(initStr, length)
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46 | End Sub
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47 |
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48 | Sub String(initStr As PCWSTR, start As Long, length As Long)
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49 | If start < 0 Or length Or start + length < 0 Then
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50 | Throw New ArgumentOutOfRangeException("String constractor: One or more arguments are out of range value.", "start or length or both")
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51 | End If
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52 | validPointerCheck(initStr + start, length)
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53 | Assign(initStr + start, length)
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54 | End Sub
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55 |
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56 | Sub String(initStr As PCSTR)
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57 | validPointerCheck(initStr)
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58 | Assign(initStr, lstrlenA(initStr))
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59 | End Sub
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60 |
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61 | Sub String(initStr As PCSTR, length As Long)
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62 | validPointerCheck(initStr, length)
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63 | Assign(initStr, length)
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64 | End Sub
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65 |
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66 | Sub String(initStr As PCSTR, start As Long, length As Long)
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67 | If start < 0 Or length < 0 Then
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68 | Throw New ArgumentOutOfRangeException("String constructor: One or more arguments are out of range value.", "start or length or both")
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69 | End If
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70 | validPointerCheck(initStr + start, length)
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71 | Assign(initStr + start, length)
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72 | End Sub
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73 |
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74 | Sub String(initStr As String)
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75 | If Not String.IsNullOrEmpty(initStr) Then
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76 | Assign(initStr.Chars, initStr.m_Length)
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77 | End If
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78 | End Sub
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79 |
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80 | Sub String(initChar As Char, length As Long)
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81 | AllocStringBuffer(length)
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82 | ActiveBasic.Strings.ChrFill(Chars, length, initChar)
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83 | Chars[length] = 0
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84 | End Sub
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85 |
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86 | Sub String(sb As Text.StringBuilder)
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87 | Chars = StrPtr(sb)
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88 | m_Length = sb.Length
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89 | sb.__Stringized()
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90 | End Sub
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91 |
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92 | Const Function Length() As Long
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93 | Return m_Length
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94 | End Function
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95 |
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96 | Function Operator() As *Char
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97 | Return Chars
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98 | End Function
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99 |
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100 | Const Function Operator [] (n As Long) As Char
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101 | rangeCheck(n)
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102 | Return Chars[n]
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103 | End Function
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104 |
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105 | Const Function Operator + (y As PCSTR) As String
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106 | If y = 0 Then
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107 | Return This
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108 | Else
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109 | Return Concat(y, lstrlenA(y))
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110 | End If
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111 | End Function
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112 |
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113 | Const Function Operator + (y As PCWSTR) As String
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114 | If y = 0 Then
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115 | Return This
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116 | Else
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117 | Return Concat(y, lstrlenW(y))
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118 | End If
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119 | End Function
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120 |
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121 | Const Function Operator + (y As String) As String
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122 | If ActiveBasic.IsNothing(y) Then
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123 | Return This
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124 | Else
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125 | Return Concat(y.Chars, y.m_Length)
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126 | End If
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127 | End Function
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128 |
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129 | Const Function Operator & (y As PCSTR) As String
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130 | Return This + y
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131 | End Function
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132 |
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133 | Const Function Operator & (y As PCWSTR) As String
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134 | Return This + y
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135 | End Function
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136 |
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137 | Const Function Operator & (y As String) As String
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138 | Return This + y
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139 | End Function
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140 |
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141 | Const Function Operator == (y As String) As Boolean
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142 | Return Compare(This, y) = 0
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143 | End Function
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144 |
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145 | Const Function Operator == (y As *Char) As Boolean
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146 | Return Compare(This, y) = 0
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147 | End Function
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148 |
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149 | Const Function Operator <> (y As String) As Boolean
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150 | Return Compare(This, y) <> 0
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151 | End Function
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152 |
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153 | Const Function Operator <> (y As *Char) As Boolean
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154 | Return Compare(This, y) <> 0
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155 | End Function
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156 |
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157 | Const Function Operator < (y As String) As Boolean
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158 | Return Compare(This, y) < 0
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159 | End Function
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160 |
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161 | Const Function Operator < (y As *Char) As Boolean
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162 | Return Compare(This, y) < 0
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163 | End Function
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164 |
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165 | Const Function Operator > (y As String) As Boolean
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166 | Return Compare(This, y) > 0
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167 | End Function
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168 |
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169 | Const Function Operator > (y As *Char) As Boolean
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170 | Return Compare(This, y) > 0
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171 | End Function
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172 |
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173 | Const Function Operator <= (y As String) As Boolean
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174 | Return Compare(This, y) <= 0
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175 | End Function
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176 |
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177 | Const Function Operator <= (y As *Char) As Boolean
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178 | Return Compare(This, y) <= 0
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179 | End Function
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180 |
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181 | Const Function Operator >= (y As String) As Boolean
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182 | Return Compare(This, y) >= 0
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183 | End Function
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184 |
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185 | Const Function Operator >= (y As *Char) As Boolean
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186 | Return Compare(This, y) >= 0
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187 | End Function
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188 |
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189 | Static Function Compare(x As String, y As String) As Long
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190 | Return CompareOrdinal(x, y)
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191 | End Function
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192 |
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193 | Public
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194 | 'Compareなどで、x.Charsではなく、StrPtr(x)と書く理由は、xがNothingの場合のため。
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195 |
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196 | Static Function Compare(x As String, indexX As Long, y As String, indexY As Long, length As Long) As Long
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197 | Return CompareOrdinal(x, indexX, y, indexY, length)
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198 | End Function
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199 |
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200 | Static Function CompareOrdinal(x As String, y As String) As Long
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201 | Return CompareOrdinal(StrPtr(x), StrPtr(y))
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202 | End Function
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203 |
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204 | Static Function CompareOrdinal(x As String, indexX As Long, y As String, indexY As Long, length As Long) As Long
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205 | Return CompareOrdinal(StrPtr(x), indexX, StrPtr(y), indexY, length)
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206 | End Function
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207 | Private
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208 | Static Function Compare(x As String, y As *Char) As Long
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209 | Return CompareOrdinal(x, y)
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210 | End Function
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211 |
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212 | Static Function CompareOrdinal(x As String, y As *Char) As Long
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213 | Return CompareOrdinal(StrPtr(x), y)
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214 | End Function
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215 |
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216 | Static Function CompareOrdinal(x As *Char, y As *Char) As Long
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217 | If x = 0 Then
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218 | If y = 0 Then
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219 | Return 0
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220 | Else
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221 | Return -1
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222 | End If
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223 | ElseIf y = 0 Then
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224 | Return 1
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225 | End If
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226 | Return ActiveBasic.Strings.StrCmp(x, y)
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227 | End Function
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228 |
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229 | Static Function CompareOrdinal(x As *Char, indexX As Long, y As *Char, indexY As Long, length As Long) As Long
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230 | If x = 0 Then
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231 | If y = 0 Then
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232 | Return 0
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233 | Else
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234 | Return -1
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235 | End If
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236 | ElseIf y = 0 Then
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237 | Return 1
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238 | End If
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239 | Return ActiveBasic.Strings.ChrCmp(VarPtr(x[indexX]), VarPtr(y[indexY]), length As SIZE_T)
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240 | End Function
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241 | Public
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242 | Function CompareTo(y As String) As Long
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243 | Return String.Compare(This, y)
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244 | End Function
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245 |
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246 | Function CompareTo(y As Object) As Long
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247 | If Not Object.Equals(This.GetType(), y.GetType()) Then
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248 | Throw New ArgumentException("String.CompareTo: The type of the argument y is not String.", "y")
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249 | End If
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250 | Return CompareTo(y As String)
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251 | End Function
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252 |
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253 | Function Equals(s As String) As Boolean
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254 | Return This = s
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255 | End Function
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256 |
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257 | Override Function Equals(s As Object) As Boolean
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258 | If Object.Equals( This.GetType(), s.GetType() ) Then
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259 | Return This.Equals(s As String)
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260 | End If
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261 | Return False
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262 | End Function
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263 |
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264 | Const Function StrPtr() As *Char
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265 | Return Chars
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266 | End Function
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267 | Private
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268 |
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269 | Sub Assign(text As PCSTR, textLengthA As Long)
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270 | #ifdef __STRING_IS_NOT_UNICODE
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271 | AssignFromCharPtr(text, textLengthA)
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272 | #else
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273 | Dim textLengthW = MultiByteToWideChar(CP_THREAD_ACP, 0, text, textLengthA, 0, 0)
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274 | If AllocStringBuffer(textLengthW) <> 0 Then
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275 | MultiByteToWideChar(CP_THREAD_ACP, 0, text, textLengthA, Chars, textLengthW)
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276 | Chars[textLengthW] = 0
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277 | End If
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278 | #endif
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279 | End Sub
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280 |
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281 | Sub Assign(text As PCWSTR, textLengthW As Long)
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282 | #ifdef __STRING_IS_NOT_UNICODE
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283 | Dim textLengthA = WideCharToMultiByte(CP_THREAD_ACP, 0, text, textLengthW, 0, 0, 0, 0)
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284 | If AllocStringBuffer(textLengthA) <> 0 Then
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285 | WideCharToMultiByte(CP_THREAD_ACP, 0, text, textLengthW, Chars, textLengthA, 0, 0)
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286 | Chars[textLengthA] = 0
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287 | End If
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288 | #else
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289 | AssignFromCharPtr(text, textLengthW)
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290 | #endif
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291 | End Sub
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292 |
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293 | Private
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294 | Static Function ConcatChar(text1 As *Char, text1Length As Long, text2 As *Char, text2Length As Long) As String
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295 | ConcatChar = New String()
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296 | With ConcatChar
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297 | .AllocStringBuffer(text1Length + text2Length)
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298 | ActiveBasic.Strings.ChrCopy(.Chars, text1, text1Length As SIZE_T)
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299 | ActiveBasic.Strings.ChrCopy(VarPtr(.Chars[text1Length]), text2, text2Length As SIZE_T)
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300 | .Chars[text1Length + text2Length] = 0
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301 | End With
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302 | End Function
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303 | Public
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304 | Const Function Concat(text As PCSTR, len As Long) As String
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305 | #ifdef __STRING_IS_NOT_UNICODE
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306 | Return ConcatChar(This.Chars, m_Length, text, len)
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307 | #else
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308 | With Concat
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309 | Dim lenW = MultiByteToWideChar(CP_THREAD_ACP, 0, text, len, 0, 0)
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310 | Concat = New String
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311 | .AllocStringBuffer(m_Length + lenW)
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312 | ActiveBasic.Strings.ChrCopy(.Chars, This.Chars, m_Length As SIZE_T)
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313 | MultiByteToWideChar(CP_THREAD_ACP, 0, text, len, VarPtr(.Chars[m_Length]), lenW)
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314 | .Chars[m_Length + lenW] = 0
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315 | End With
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316 | #endif
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317 | End Function
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318 |
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319 | Const Function Concat(text As PCWSTR, len As Long) As String
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320 | #ifdef __STRING_IS_NOT_UNICODE
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321 | With Concat
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322 | Concat = New String
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323 | Dim lenA = WideCharToMultiByte(CP_THREAD_ACP, 0, text, len, 0, 0, 0, 0)
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324 | .AllocStringBuffer(m_Length + lenA)
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325 | ActiveBasic.Strings.ChrCopy(.Chars, This.Chars, m_Length As SIZE_T)
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326 | WideCharToMultiByte(CP_THREAD_ACP, 0, text, len, VarPtr(.Chars[m_Length]), lenA, 0, 0)
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327 | .Chars[m_Length + lenA] = 0
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328 | End With
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329 | #else
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330 | Return ConcatChar(This.Chars, m_Length, text, len)
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331 | #endif
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332 | End Function
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333 |
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334 | Static Function Concat(x As String, y As String) As String
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335 | If String.IsNullOrEmpty(x) Then
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336 | Return y
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337 | Else
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338 | Return x.Concat(y.Chars, y.m_Length)
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339 | End If
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340 | End Function
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341 |
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342 | Static Function Concat(x As String, y As String, z As String) As String
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343 | Dim sb = New Text.StringBuilder(removeNull(x).Length + removeNull(y).Length + removeNull(z).Length)
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344 | sb.Append(x).Append(y).Append(z)
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345 | Concat = sb.ToString
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346 | End Function
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347 |
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348 | Static Function Concat(x As String, y As String, z As String, w As String) As String
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349 | Dim sb = New Text.StringBuilder(removeNull(x).Length + removeNull(y).Length + removeNull(z).Length + removeNull(w).Length)
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350 | sb.Append(x).Append(y).Append(z).Append(w)
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351 | Concat = sb.ToString
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352 | End Function
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353 |
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354 | Static Function Concat(x As Object, y As Object) As String
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355 | Return Concat(x.ToString, y.ToString)
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356 | End Function
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357 |
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358 | Static Function Concat(x As Object, y As Object, z As Object) As String
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359 | Return Concat(x.ToString, y.ToString, z.ToString)
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360 | End Function
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361 |
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362 | Static Function Concat(x As Object, y As Object, z As Object, w As Object) As String
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363 | Return Concat(x.ToString, y.ToString, z.ToString, w.ToString)
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364 | End Function
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365 |
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366 | Const Function Contains(c As Char) As Boolean
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367 | Return IndexOf(c) >= 0
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368 | End Function
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369 |
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370 | Const Function Contains(s As String) As Boolean
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371 | If Object.ReferenceEquals(s, Nothing) Then
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372 | Throw New ArgumentNullException("String.Contains: An argument is null value.", "s")
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373 | ElseIf s = "" Then
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374 | Return True
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375 | Else
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376 | Return IndexOf(s, 0, m_Length) >= 0
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377 | End If
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378 | End Function
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379 |
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380 | Const Function IndexOf(c As Char) As Long
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381 | Return indexOfCore(c, 0, m_Length)
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382 | End Function
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383 |
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384 | Const Function IndexOf(c As Char, start As Long) As Long
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385 | rangeCheck(start)
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386 | Return indexOfCore(c, start, m_Length - start)
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387 | End Function
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388 |
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389 | Const Function IndexOf(c As Char, start As Long, count As Long) As Long
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390 | rangeCheck(start, count)
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391 | Return indexOfCore(c, start, count)
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392 | End Function
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393 | Private
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394 | Const Function indexOfCore(c As Char, start As Long, count As Long) As Long
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395 | indexOfCore = ActiveBasic.Strings.ChrFind(VarPtr(Chars[start]), count, c) As Long
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396 | If indexOfCore <> -1 Then
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397 | indexOfCore += start
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398 | End If
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399 | End Function
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400 | Public
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401 | Const Function IndexOf(s As String) As Long
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402 | Return IndexOf(s, 0, m_Length)
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403 | End Function
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404 |
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405 | Const Function IndexOf(s As String, startIndex As Long) As Long
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406 | Return IndexOf(s, startIndex, m_Length - startIndex)
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407 | End Function
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408 |
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409 | Const Function IndexOf(s As String, startIndex As Long, count As Long) As Long
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410 | rangeCheck(startIndex, count)
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411 | If Object.ReferenceEquals(s, Nothing) Then
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412 | Throw New ArgumentNullException("String.IndexOf: An argument is out of range value.", "s")
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413 | End If
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414 |
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415 | Dim length = s.Length
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416 | If length = 0 Then Return startIndex
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417 |
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418 | Dim i As Long, j As Long
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419 | For i = startIndex To startIndex + count - 1
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420 | For j = 0 To length - 1
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421 | If Chars[i + j] = s[j] Then
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422 | If j = length - 1 Then Return i
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423 | Else
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424 | Exit For
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425 | End If
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426 | Next
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427 | Next
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428 | Return -1
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429 | End Function
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430 |
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431 | Const Function LastIndexOf(c As Char) As Long
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432 | Return lastIndexOf(c, m_Length - 1, m_Length)
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433 | End Function
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434 |
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435 | Const Function LastIndexOf(c As Char, start As Long) As Long
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436 | rangeCheck(start)
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437 | Return lastIndexOf(c, start, start + 1)
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438 | End Function
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439 |
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440 | Const Function LastIndexOf(c As Char, start As Long, count As Long) As Long
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441 | rangeCheck(start)
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442 | Dim lastFindPos = start - (count - 1)
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443 | If Not (m_Length > lastFindPos And lastFindPos >= 0) Then
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444 | Throw New ArgumentOutOfRangeException("String.LastIndexOf: An argument is out of range value.", "count")
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445 | End If
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446 | Return lastIndexOf(c, start, count)
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447 | End Function
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448 | Private
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449 | Const Function lastIndexOf(c As Char, start As Long, count As Long) As Long
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450 | Dim lastFindPos = start - (count - 1)
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451 | Dim i As Long
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452 | For i = start To lastFindPos Step -1
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453 | If Chars[i] = c Then
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454 | Return i
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455 | End If
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456 | Next
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457 | Return -1
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458 | End Function
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459 |
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460 | Public
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461 | Const Function LastIndexOf(s As String) As Long
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462 | Return LastIndexOf(s, m_Length - 1, m_Length)
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463 | End Function
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464 |
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465 | Const Function LastIndexOf(s As String, startIndex As Long) As Long
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466 | Return LastIndexOf(s, startIndex, startIndex + 1)
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467 | End Function
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468 |
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469 | Const Function LastIndexOf(s As String, start As Long, count As Long) As Long
|
---|
470 | If Object.ReferenceEquals(s, Nothing) Then
|
---|
471 | Throw New ArgumentNullException("String.LastIndexOf: An argument is out of range value.", "s")
|
---|
472 | End If
|
---|
473 |
|
---|
474 | If start < 0 Or start > m_Length - 1 Or _
|
---|
475 | count < 0 Or count > start + 2 Then
|
---|
476 | Throw New ArgumentOutOfRangeException("String.LastIndexOf: One or more arguments are out of range value.", "start or count or both")
|
---|
477 | End If
|
---|
478 | Dim length = s.m_Length
|
---|
479 | If length > m_Length Then Return -1
|
---|
480 | If length = 0 Then Return start
|
---|
481 |
|
---|
482 | Dim i As Long, j As Long
|
---|
483 | For i = start To start - count + 1 Step -1
|
---|
484 | For j = length - 1 To 0 Step -1
|
---|
485 | If Chars[i + j] = s[j] Then
|
---|
486 | If j = 0 Then Return i
|
---|
487 | Else
|
---|
488 | Exit For
|
---|
489 | End If
|
---|
490 | Next
|
---|
491 | Next
|
---|
492 | Return -1
|
---|
493 | End Function
|
---|
494 |
|
---|
495 | Const Function StartsWith(c As Char) As Boolean
|
---|
496 | Return IndexOf(c) = 0
|
---|
497 | End Function
|
---|
498 |
|
---|
499 | Const Function StartsWith(s As String) As Boolean
|
---|
500 | Return IndexOf(s) = 0
|
---|
501 | End Function
|
---|
502 |
|
---|
503 | Const Function EndsWith(c As Char) As Boolean
|
---|
504 | Return LastIndexOf(c) = m_Length - 1
|
---|
505 | End Function
|
---|
506 |
|
---|
507 | Const Function EndsWith(s As String) As Boolean
|
---|
508 | Return LastIndexOf(s) = m_Length - s.Length
|
---|
509 | End Function
|
---|
510 |
|
---|
511 | Const Function Insert(startIndex As Long, text As String) As String
|
---|
512 | Dim sb = New Text.StringBuilder(This)
|
---|
513 | sb.Insert(startIndex, text)
|
---|
514 | Return sb.ToString
|
---|
515 | End Function
|
---|
516 |
|
---|
517 | Const Function Substring(startIndex As Long) As String
|
---|
518 | rangeCheck(startIndex)
|
---|
519 | Return Substring(startIndex, m_Length - startIndex)
|
---|
520 | End Function
|
---|
521 |
|
---|
522 | Const Function Substring(startIndex As Long, length As Long) As String
|
---|
523 | rangeCheck(startIndex, length)
|
---|
524 | Return New String(Chars, startIndex, length)
|
---|
525 | End Function
|
---|
526 |
|
---|
527 | Const Function Remove(startIndex As Long) As String
|
---|
528 | rangeCheck(startIndex)
|
---|
529 | Remove = Substring(0, startIndex)
|
---|
530 | End Function
|
---|
531 |
|
---|
532 | Const Function Remove(startIndex As Long, count As Long) As String
|
---|
533 | Dim sb = New Text.StringBuilder(This)
|
---|
534 | sb.Remove(startIndex, count)
|
---|
535 | Remove = sb.ToString
|
---|
536 | End Function
|
---|
537 |
|
---|
538 | Static Function IsNullOrEmpty(s As String) As Boolean
|
---|
539 | If Not Object.ReferenceEquals(s, Nothing) Then
|
---|
540 | If s.m_Length > 0 Then
|
---|
541 | Return False
|
---|
542 | End If
|
---|
543 | End If
|
---|
544 | Return True
|
---|
545 | End Function
|
---|
546 |
|
---|
547 | Const Function Replace(oldChar As Char, newChar As Char) As String
|
---|
548 | Dim sb = New Text.StringBuilder(This)
|
---|
549 | sb.Replace(oldChar, newChar)
|
---|
550 | Replace = sb.ToString
|
---|
551 | End Function
|
---|
552 |
|
---|
553 | Const Function Replace(oldStr As String, newStr As String) As String
|
---|
554 | Dim sb = New Text.StringBuilder(This)
|
---|
555 | sb.Replace(oldStr, newStr)
|
---|
556 | Return sb.ToString
|
---|
557 | End Function
|
---|
558 |
|
---|
559 | Const Function ToLower() As String
|
---|
560 | Dim sb = New Text.StringBuilder(m_Length)
|
---|
561 | sb.Length = m_Length
|
---|
562 | Dim i As Long
|
---|
563 | For i = 0 To ELM(m_Length)
|
---|
564 | sb[i] = ActiveBasic.CType.ToLower(Chars[i])
|
---|
565 | Next
|
---|
566 | Return sb.ToString
|
---|
567 | End Function
|
---|
568 |
|
---|
569 | Const Function ToUpper() As String
|
---|
570 | Dim sb = New Text.StringBuilder(m_Length)
|
---|
571 | sb.Length = m_Length
|
---|
572 | Dim i As Long
|
---|
573 | For i = 0 To ELM(m_Length)
|
---|
574 | sb[i] = ActiveBasic.CType.ToUpper(Chars[i])
|
---|
575 | Next
|
---|
576 | Return sb.ToString
|
---|
577 | End Function
|
---|
578 |
|
---|
579 | Override Function ToString() As String
|
---|
580 | ToString = This
|
---|
581 | End Function
|
---|
582 |
|
---|
583 | Const Function Clone() As String
|
---|
584 | Clone = This
|
---|
585 | End Function
|
---|
586 | /*
|
---|
587 | Function Clone() As Object
|
---|
588 | Clone = This
|
---|
589 | End Function
|
---|
590 | */
|
---|
591 | Static Function Copy(s As String) As String
|
---|
592 | Copy = New String(s.Chars, s.m_Length)
|
---|
593 | End Function
|
---|
594 |
|
---|
595 | Sub CopyTo(sourceIndex As Long, destination As *Char, destinationIndex As Long, count As Long)
|
---|
596 | ActiveBasic.Strings.ChrCopy(VarPtr(destination[destinationIndex]), VarPtr(Chars[sourceIndex]), count As SIZE_T)
|
---|
597 | End Sub
|
---|
598 |
|
---|
599 | Override Function GetHashCode() As Long
|
---|
600 | #ifdef __STRING_IS_NOT_UNICODE
|
---|
601 | Dim size = (m_Length + 1) >> 1
|
---|
602 | #else
|
---|
603 | Dim size = m_Length
|
---|
604 | #endif
|
---|
605 | Return _System_GetHashFromWordArray(Chars As *Word, size) Xor m_Length
|
---|
606 | End Function
|
---|
607 |
|
---|
608 | Function PadLeft(total As Long) As String
|
---|
609 | PadLeft(total, &h30 As Char)
|
---|
610 | End Function
|
---|
611 |
|
---|
612 | Function PadLeft(total As Long, c As Char) As String
|
---|
613 | If total < 0 Then
|
---|
614 | Throw New ArgumentOutOfRangeException("String.PadLeft: An arguments is out of range value.", "total")
|
---|
615 | End If
|
---|
616 | If total >= m_Length Then
|
---|
617 | Return This
|
---|
618 | End If
|
---|
619 | Dim sb = New Text.StringBuilder(total)
|
---|
620 | sb.Append(c, total - m_Length)
|
---|
621 | sb.Append(This)
|
---|
622 | Return sb.ToString
|
---|
623 | End Function
|
---|
624 |
|
---|
625 | Function PadRight(total As Long) As String
|
---|
626 | PadRight(total, &h30 As Char)
|
---|
627 | End Function
|
---|
628 |
|
---|
629 | Function PadRight(total As Long, c As Char) As String
|
---|
630 | If total < 0 Then
|
---|
631 | Throw New ArgumentOutOfRangeException("String.PadRight: An arguments is out of range value.", "total")
|
---|
632 | End If
|
---|
633 | If total >= m_Length Then
|
---|
634 | Return This
|
---|
635 | End If
|
---|
636 | Dim sb = New Text.StringBuilder(total)
|
---|
637 | sb.Append(This)
|
---|
638 | sb.Append(c, total - m_Length)
|
---|
639 | Return sb.ToString
|
---|
640 | End Function
|
---|
641 | Private
|
---|
642 | Function AllocStringBuffer(textLength As Long) As *Char
|
---|
643 | If textLength < 0 Then
|
---|
644 | Return 0
|
---|
645 | End If
|
---|
646 | AllocStringBuffer = GC_malloc_atomic(SizeOf(Char) * (textLength + 1))
|
---|
647 | If AllocStringBuffer = 0 Then
|
---|
648 | 'Throw New OutOfMemoryException
|
---|
649 | End If
|
---|
650 | m_Length = textLength
|
---|
651 | Chars = AllocStringBuffer
|
---|
652 | End Function
|
---|
653 |
|
---|
654 | Sub AssignFromCharPtr(text As *Char, textLength As Long)
|
---|
655 | AllocStringBuffer(textLength)
|
---|
656 | ActiveBasic.Strings.ChrCopy(Chars, text, textLength As SIZE_T)
|
---|
657 | Chars[m_Length] = 0
|
---|
658 | End Sub
|
---|
659 |
|
---|
660 | Const Sub rangeCheck(index As Long)
|
---|
661 | If index < 0 Or index > m_Length Then
|
---|
662 | Throw New ArgumentOutOfRangeException("String: An arguments is out of range value.", "index")
|
---|
663 | End If
|
---|
664 | End Sub
|
---|
665 |
|
---|
666 | Const Sub rangeCheck(start As Long, length As Long)
|
---|
667 | If start < 0 Or start > This.m_Length Or length < 0 Then
|
---|
668 | Throw New ArgumentOutOfRangeException("String: One or more arguments are out of range value.", "start or length or both")
|
---|
669 | End If
|
---|
670 | End Sub
|
---|
671 |
|
---|
672 | Static Function removeNull(s As String) As String
|
---|
673 | If ActiveBasic.IsNothing(s) Then
|
---|
674 | removeNull = Empty
|
---|
675 | Else
|
---|
676 | removeNull = s
|
---|
677 | End If
|
---|
678 | End Function
|
---|
679 | End Class
|
---|
680 |
|
---|
681 | End Namespace
|
---|