1 | 'Classes/System/Text/StringBuilder.ab
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2 |
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3 | #require <Classes/ActiveBasic/Strings/Strings.ab>
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4 |
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5 | Namespace System
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6 | Namespace Text
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7 |
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8 | Class StringBuilder
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9 | 'Inherits ISerializable
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10 | Public
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11 | Sub StringBuilder()
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12 | initialize(1024)
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13 | End Sub
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14 |
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15 | Sub StringBuilder(capacity As Long)
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16 | initialize(capacity)
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17 | End Sub
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18 |
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19 | Sub StringBuilder(s As String)
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20 | initialize(s, 0, s.Length, s.Length * 2)
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21 | End Sub
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22 |
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23 | Sub StringBuilder(capacity As Long, maxCapacity As Long)
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24 | initialize(capacity, maxCapacity)
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25 | End Sub
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26 |
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27 | Sub StringBuilder(s As String, capacity As Long)
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28 | initialize(s, 0, s.Length, capacity)
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29 | End Sub
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30 |
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31 | Sub StringBuilder(s As String, startIndex As Long, length As Long, capacity As Long)
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32 | initialize(s, startIndex, length, capacity)
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33 | End Sub
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34 |
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35 | 'Methods
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36 |
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37 | Function Append(x As Boolean) As StringBuilder
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38 | Append(Str$(x))
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39 | Return This
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40 | End Function
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41 |
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42 | Function Append(x As StrChar) As StringBuilder
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43 | EnsureCapacity(size + 1)
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44 | separateBuffer()
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45 | chars[size] = x
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46 | size++
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47 | Return This
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48 | End Function
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49 |
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50 | #ifdef __STRING_IS_NOT_UNICODE
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51 | Function Append(x As Word) As StringBuilder
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52 | Append(Str$(x As DWord))
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53 | Return This
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54 | End Function
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55 | #else
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56 | Function Append(x As SByte) As StringBuilder
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57 | Append(Str$(x As Long))
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58 | Return This
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59 | End Function
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60 | #endif
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61 |
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62 | Function Append(x As Byte) As StringBuilder
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63 | Append(Str$(x As DWord))
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64 | Return This
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65 | End Function
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66 |
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67 | Function Append(x As Integer) As StringBuilder
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68 | Append(Str$(x As Long))
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69 | Return This
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70 | End Function
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71 |
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72 | Function Append(x As Long) As StringBuilder
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73 | Append(Str$(x))
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74 | Return This
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75 | End Function
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76 |
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77 | Function Append(x As DWord) As StringBuilder
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78 | Append(Str$(x))
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79 | Return This
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80 | End Function
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81 |
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82 | Function Append(x As Int64) As StringBuilder
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83 | Append(Str$(x))
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84 | Return This
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85 | End Function
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86 |
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87 | Function Append(x As QWord) As StringBuilder
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88 | Append(Str$(x))
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89 | Return This
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90 | End Function
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91 |
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92 | Function Append(x As Single) As StringBuilder
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93 | Append(Str$(x))
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94 | Return This
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95 | End Function
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96 |
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97 | Function Append(x As Double) As StringBuilder
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98 | Append(Str$(x))
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99 | Return This
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100 | End Function
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101 |
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102 | Function Append(x As Object) As StringBuilder
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103 | Append(x.ToString)
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104 | Return This
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105 | End Function
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106 |
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107 | Function Append(c As StrChar, n As Long) As StringBuilder
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108 | EnsureCapacity(size + n)
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109 | ActiveBasic.Strings.ChrFill(VarPtr(chars[size]), n As SIZE_T, c)
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110 | size += n
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111 | Return This
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112 | End Function
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113 |
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114 | Function Append(s As String) As StringBuilder
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115 | If Not String.IsNullOrEmpty(s) Then
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116 | appendCore(s, 0, s.Length)
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117 | End If
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118 | Return This
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119 | End Function
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120 |
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121 | Function Append(s As String, startIndex As Long, count As Long) As StringBuilder
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122 | Return Append(StrPtr(s), startIndex, count)
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123 | End Function
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124 |
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125 | Function Append(s As *StrChar, startIndex As Long, count As Long) As StringBuilder
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126 | If s = 0 Then
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127 | If startIndex = 0 And count = 0 Then
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128 | Return This
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129 | Else
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130 | Throw New ArgumentNullException("StringBuilder.Append: An argument is null", "s")
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131 | End If
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132 | ElseIf startIndex < 0 Or count < 0 Then
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133 | Throw New ArgumentOutOfRangeException("StringBuilder.Append: One or more arguments are out of range value.", "startIndex or count or both")
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134 | End If
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135 | appendCore(s, startIndex, count)
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136 | Return This
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137 | End Function
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138 | Private
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139 | Sub appendCore(s As *StrChar, start As Long, count As Long)
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140 | EnsureCapacity(size + count)
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141 | separateBuffer()
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142 | ActiveBasic.Strings.ChrCopy(VarPtr(chars[size]), VarPtr(s[start]), count As SIZE_T)
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143 | size += count
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144 | End Sub
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145 |
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146 | Sub appendCore(s As String, start As Long, count As Long)
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147 | EnsureCapacity(size + count)
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148 | separateBuffer()
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149 | s.CopyTo(start, chars, size, count)
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150 | size += count
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151 | End Sub
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152 | Public
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153 | 'AppendFormat
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154 |
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155 | Function AppendLine() As StringBuilder
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156 | separateBuffer()
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157 | Append(Environment.NewLine)
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158 | Return This
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159 | End Function
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160 |
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161 | Function AppendLine(s As String) As StringBuilder
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162 | EnsureCapacity(Capacity + s.Length + Environment.NewLine.Length)
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163 | separateBuffer()
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164 | Append(s)
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165 | Append(Environment.NewLine)
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166 | Return This
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167 | End Function
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168 |
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169 | Const Sub CopyTo(sourceIndex As Long, ByRef dest[] As StrChar, destIndex As Long, count As Long)
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170 | If dest = 0 Then
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171 | Throw New ArgumentNullException("StringBuilder.CopyTo: An argument is null", "sourceIndex")
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172 | ElseIf size < sourceIndex + count Or sourceIndex < 0 Or destIndex < 0 Or count < 0 Then
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173 | Throw New ArgumentOutOfRangeException("StringBuilder.CopyTo: One or more arguments are out of range value.", "startIndex or count or both")
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174 | End If
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175 |
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176 | memcpy(VarPtr(dest[destIndex]), VarPtr(chars[sourceIndex]), count * SizeOf (StrChar))
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177 | End Sub
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178 |
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179 | Function EnsureCapacity(c As Long) As Long
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180 | If c < 0 Or c > MaxCapacity Then
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181 | Throw New ArgumentOutOfRangeException("StringBuilder.Append: An argument is out of range value.", "c")
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182 | ElseIf c > Capacity Then
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183 | Dim p = GC_malloc_atomic((c + 1) * SizeOf (StrChar)) As *StrChar
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184 | If p = 0 Then
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185 | 'Throw OutOfMemoryException
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186 | Debug
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187 | End If
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188 | ActiveBasic.Strings.ChrCopy(p, chars, size As SIZE_T)
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189 | chars = p
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190 | capacity = c
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191 | stringized = False
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192 | End If
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193 | End Function
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194 |
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195 | 'Override Function Equals(o As Object) As Boolean
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196 |
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197 | Const Function Equals(s As StringBuilder) As Boolean
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198 | Return ActiveBasic.Strings.StrCmp(chars, s.chars) = 0 _
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199 | And capacity = s.capacity _
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200 | And maxCapacity = s.maxCapacity
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201 | End Function
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202 |
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203 | Override Function GetHashCode() As Long
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204 | #ifdef __STRING_IS_NOT_UNICODE
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205 | Dim n = (size + 1) >> 1
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206 | #else
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207 | Dim n = size
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208 | #endif
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209 | Return _System_GetHashFromWordArray(chars As *Word, n As SIZE_T) Xor capacity Xor maxCapacity
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210 | End Function
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211 |
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212 | Function Insert(i As Long, x As Boolean) As StringBuilder
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213 | rangeCheck(i)
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214 | insertCore(i, Str$(x))
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215 | Return This
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216 | End Function
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217 |
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218 | Function Insert(i As Long, x As StrChar) As StringBuilder
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219 | Insert(i, VarPtr(x), 0, 1)
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220 | Return This
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221 | End Function
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222 | #ifdef __STRING_IS_NOT_UNICODE
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223 | Function Insert(i As Long, x As Word) As StringBuilder
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224 | rangeCheck(i)
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225 | insertCore(i, Str$(x As DWord))
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226 | Return This
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227 | End Function
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228 | #else
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229 | Function Insert(i As Long, x As SByte) As StringBuilder
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230 | rangeCheck(i)
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231 | insertCore(i, Str$(x As Long))
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232 | Return This
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233 | End Function
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234 | #endif
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235 |
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236 | Function Insert(i As Long, x As Byte) As StringBuilder
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237 | rangeCheck(i)
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238 | insertCore(i, Str$(x))
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239 | Return This
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240 | End Function
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241 |
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242 | Function Insert(i As Long, x As Integer) As StringBuilder
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243 | rangeCheck(i)
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244 | insertCore(i, Str$(x))
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245 | Return This
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246 | End Function
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247 |
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248 | Function Insert(i As Long, x As Long) As StringBuilder
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249 | rangeCheck(i)
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250 | insertCore(i, Str$(x))
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251 | Return This
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252 | End Function
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253 |
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254 | Function Insert(i As Long, x As DWord) As StringBuilder
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255 | rangeCheck(i)
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256 | insertCore(i, Str$(x))
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257 | Return This
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258 | End Function
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259 |
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260 | Function Insert(i As Long, x As Int64) As StringBuilder
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261 | rangeCheck(i)
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262 | insertCore(i, Str$(x))
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263 | Return This
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264 | End Function
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265 |
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266 | Function Insert(i As Long, x As Single) As StringBuilder
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267 | rangeCheck(i)
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268 | insertCore(i, Str$(x))
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269 | Return This
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270 | End Function
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271 |
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272 | Function Insert(i As Long, x As Double) As StringBuilder
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273 | rangeCheck(i)
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274 | insertCore(i, Str$(x))
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275 | Return This
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276 | End Function
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277 |
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278 | Function Insert(i As Long, s As String) As StringBuilder
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279 | rangeCheck(i)
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280 | insertCore(i, s)
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281 | Return This
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282 | End Function
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283 |
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284 | Function Insert(i As Long, o As Object) As StringBuilder
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285 | rangeCheck(i)
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286 | insertCore(i, o.ToString)
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287 | Return This
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288 | End Function
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289 |
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290 | Function Insert(index As Long, x As String, n As Long) As StringBuilder
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291 | rangeCheck(index)
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292 | If n < 0 Then
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293 | Throw New ArgumentOutOfRangeException("StringBuilder.Insert: An argument is out of range value.", "n")
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294 | End If
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295 | Dim len = x.Length
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296 | Dim lenTotal = len * n
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297 | Dim newSize = size + lenTotal
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298 | EnsureCapacity(newSize)
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299 | separateBuffer()
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300 |
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301 | Dim i As Long
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302 | For i = 0 To ELM(n)
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303 | x.CopyTo(0, chars, size + i * len, len)
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304 | Next
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305 | size = newSize
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306 | Return This
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307 | End Function
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308 |
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309 | Function Insert(i As Long, x As *StrChar, index As Long, count As Long) As StringBuilder
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310 | rangeCheck(i)
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311 | If x = 0 Then
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312 | Throw New ArgumentNullException("StringBuilder.Insert: An argument is null", "x")
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313 | ElseIf index < 0 Or count < 0 Then
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314 | Throw New ArgumentOutOfRangeException("StringBuilder.Append: One or more arguments are out of range value.", "index or count or both")
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315 | End If
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316 |
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317 | Dim newSize = size + count
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318 | EnsureCapacity(newSize)
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319 | separateBuffer()
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320 | ActiveBasic.Strings.ChrMove(VarPtr(chars[i + count]), VarPtr(chars[i]), (size - i) As SIZE_T)
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321 | ActiveBasic.Strings.ChrCopy(VarPtr(chars[i]), VarPtr(x[index]), count As SIZE_T)
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322 | size = newSize
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323 | Return This
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324 | End Function
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325 |
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326 | Private
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327 | Sub insertCore(i As Long, s As String)
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328 | Dim newSize = size + s.Length
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329 | EnsureCapacity(newSize)
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330 | separateBuffer()
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331 | ActiveBasic.Strings.ChrMove(VarPtr(chars[i + s.Length]), VarPtr(chars[i]), (size - i) As SIZE_T)
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332 | s.CopyTo(0, chars, i, s.Length)
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333 | size = newSize
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334 | End Sub
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335 | Public
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336 |
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337 | Function Remove(startIndex As Long, length As Long) As StringBuilder
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338 | rangeCheck(startIndex, length)
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339 | separateBuffer()
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340 |
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341 | Dim moveStart = startIndex + length
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342 | ActiveBasic.Strings.ChrMove(
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343 | VarPtr(chars[startIndex]), VarPtr(chars[moveStart]), (size - moveStart) As SIZE_T)
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344 | size -= length
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345 | Return This
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346 | End Function
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347 |
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348 | Function Replace(oldChar As StrChar, newChar As StrChar) As StringBuilder
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349 | replaceCore(oldChar, newChar, 0, size)
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350 | Return This
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351 | End Function
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352 |
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353 | Function Replace(oldStr As String, newStr As String) As StringBuilder
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354 | replaceCore(oldStr, newStr, 0, size)
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355 | Return This
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356 | End Function
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357 |
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358 | Function Replace(oldChar As StrChar, newChar As StrChar, startIndex As Long, count As Long) As StringBuilder
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359 | rangeCheck(startIndex, count)
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360 | replaceCore(oldChar, newChar, startIndex, count)
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361 | Return This
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362 | End Function
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363 |
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364 | Function Replace(oldStr As String, newStr As String, startIndex As Long, count As Long) As StringBuilder
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365 | rangeCheck(startIndex, count)
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366 | replaceCore(oldStr, newStr, startIndex, count)
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367 | Return This
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368 | End Function
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369 | Private
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370 | Sub replaceCore(oldChar As StrChar, newChar As StrChar, start As Long, count As Long)
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371 | separateBuffer()
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372 | Dim i As Long
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373 | Dim last = ELM(start + count)
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374 | For i = start To last
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375 | If chars[i] = oldChar Then
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376 | chars[i] = newChar
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377 | End If
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378 | Next
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379 | End Sub
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380 |
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381 | Sub replaceCore(oldStr As String, newStr As String, start As Long, count As Long)
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382 | If ActiveBasic.IsNothing(oldStr) Then
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383 | Throw New ArgumentNullException("StringBuilder.Replace: An argument is null", "oldStr")
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384 | ElseIf oldStr.Length = 0 Then
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385 | Throw New ArgumentException("StringBuilder.Replace: The argument 'oldStr' is empty string. ", "oldStr")
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386 | End If
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387 |
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388 | Dim s = New StringBuilder(capacity, maxCapacity)
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389 | Dim curPos = start
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390 | Dim last = start + count
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391 | Do
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392 | Dim nextPos = ActiveBasic.Strings.ChrFind(VarPtr(chars[curPos]) As *StrChar, size As SIZE_T, StrPtr(oldStr), oldStr.Length As SIZE_T) As Long
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393 | If nextPos = -1 As SIZE_T Or curPos > last Then
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394 | s.appendCore(chars, curPos, size - curPos)
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395 | Exit Do
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396 | End If
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397 |
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398 | s.appendCore(chars, curPos, nextPos As Long)
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399 | s.Append(newStr)
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400 | curPos += nextPos As Long + oldStr.Length
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401 | Loop
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402 | chars = s.chars
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403 | size = s.size
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404 | End Sub
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405 |
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406 | Public
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407 | Override Function ToString() As String
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408 | chars[size] = 0
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409 | Return New String(This)
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410 | End Function
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411 |
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412 | Const Function ToString(startIndex As Long, length As Long) As String
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413 | rangeCheck(startIndex, length)
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414 | Return New String(chars, startIndex, length)
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415 | End Function
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416 |
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417 | Const Function Operator [](i As Long) As StrChar
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418 | Return Chars[i]
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419 | End Function
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420 |
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421 | Sub Operator []=(i As Long, c As StrChar)
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422 | Chars[i] = c
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423 | End Sub
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424 |
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425 | 'Properties
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426 | Const Function Capacity() As Long
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427 | Return capacity
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428 | End Function
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429 |
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430 | Sub Capacity(c As Long)
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431 | If c < size Or c > MaxCapacity Then 'sizeとの比較でcが負の場合も対応
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432 | Throw New ArgumentOutOfRangeException("StringBuilder.Capacity: An argument is out of range value.", "c")
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433 | End If
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434 | EnsureCapacity(c)
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435 | End Sub
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436 |
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437 | Const Function Chars(i As Long) As StrChar
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438 | If i >= Length Or i < 0 Then
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439 | Throw New IndexOutOfRangeException("StringBuilder.Chars: The index argument 'i' is out of range value.")
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440 | End If
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441 | Return chars[i]
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442 | End Function
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443 |
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444 | Sub Chars(i As Long, c As StrChar)
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445 | If i >= Length Or i < 0 Then
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446 | Throw New ArgumentOutOfRangeException("StringBuilder.Chars: An argument is out of range value.", "i")
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447 | End If
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448 | chars[i] = c
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449 | End Sub
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450 |
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451 | Const Function Length() As Long
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452 | Return size
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453 | End Function
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454 |
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455 | Sub Length(i As Long)
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456 | EnsureCapacity(i) 'iが適切な値かどうかの確認はこの中で行う
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457 | If size < i Then
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458 | ActiveBasic.Strings.ChrFill(VarPtr(chars[size]), (i - size + 1) As SIZE_T, 0 As StrChar)
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459 | End If
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460 | size = i
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461 | End Sub
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462 |
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463 | Const Function MaxCapacity() As Long
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464 | Return maxCapacity
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465 | End Function
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466 |
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467 | Function __Chars() As *StrChar
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468 | Return chars
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469 | End Function
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470 |
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471 | Sub __Stringized()
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472 | stringized = True
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473 | End Sub
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474 |
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475 | Private
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476 | Sub initialize(capacity As Long, maxCapacity = LONG_MAX As Long)
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477 | If capacity < 0 Or maxCapacity < 1 Or maxCapacity < capacity Then
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478 | Throw New ArgumentOutOfRangeException("StringBuilder constructor: One or more arguments are out of range value.", "capacity or maxCapacity or both")
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479 | End If
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480 |
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481 | If capacity = 0 Then
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482 | This.capacity = 1024
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483 | Else
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484 | This.capacity = capacity
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485 | End If
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486 |
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487 | This.maxCapacity = maxCapacity
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488 | This.size = 0
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489 | This.chars = GC_malloc_atomic((This.capacity + 1) * SizeOf (StrChar))
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490 | If chars = 0 Then
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491 | 'Throw OutOfMemoryException
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492 | Debug
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493 | End If
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494 |
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495 | End Sub
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---|
496 |
|
---|
497 | Sub initialize(s As String, startIndex As Long, length As Long, capacity As Long, maxCapacity = LONG_MAX As Long)
|
---|
498 | StringBuilder.rangeCheck2(s.Length, startIndex, length)
|
---|
499 |
|
---|
500 | initialize(Math.Max(capacity, length), maxCapacity)
|
---|
501 |
|
---|
502 | If Not String.IsNullOrEmpty(s) Then
|
---|
503 | s.CopyTo(startIndex, chars, 0, length)
|
---|
504 | size = length
|
---|
505 | End If
|
---|
506 | End Sub
|
---|
507 |
|
---|
508 | Sub rangeCheck(index As Long)
|
---|
509 | If index < 0 Or index > size Then
|
---|
510 | Throw New ArgumentOutOfRangeException("StringBuilder: Index argument is out of range value.")
|
---|
511 | End If
|
---|
512 | End Sub
|
---|
513 |
|
---|
514 | Sub rangeCheck(startIndex As Long, count As Long)
|
---|
515 | StringBuilder.rangeCheck2(size, startIndex, count)
|
---|
516 | End Sub
|
---|
517 |
|
---|
518 | Static Sub rangeCheck2(length As Long, startIndex As Long, count As Long)
|
---|
519 | 'length < 0は判定に入っていないことに注意
|
---|
520 | If startIndex < 0 Or count < 0 Or startIndex + count > length Then
|
---|
521 | Throw New ArgumentOutOfRangeException("StringBuilder: One or more arguments are out of range value.", "startIndex or count or both")
|
---|
522 | End If
|
---|
523 | End Sub
|
---|
524 |
|
---|
525 | Sub separateBuffer()
|
---|
526 | If stringized Then
|
---|
527 | Dim newChars = GC_malloc_atomic(SizeOf (StrChar) * capacity) As *StrChar
|
---|
528 | ActiveBasic.Strings.ChrCopy(newChars, chars, capacity As SIZE_T)
|
---|
529 | chars = newChars
|
---|
530 | stringized = False
|
---|
531 | End If
|
---|
532 | End Sub
|
---|
533 |
|
---|
534 | chars As *StrChar
|
---|
535 | maxCapacity As Long
|
---|
536 | capacity As Long
|
---|
537 | size As Long
|
---|
538 | stringized As Boolean
|
---|
539 | End Class
|
---|
540 |
|
---|
541 | End Namespace 'Text
|
---|
542 | End Namespace 'System
|
---|
543 |
|
---|
544 | '暫定
|
---|
545 | Function StrPtr(sb As System.Text.StringBuilder) As *StrChar
|
---|
546 | Return sb.__Chars
|
---|
547 | End Function
|
---|