1 | /*!
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2 | @file Classes/ActiveBasic/CType/CType.ab
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3 | @brief ASCII文字分類関数群
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4 | @author Egtra
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5 | @date 2007/11/25
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6 | */
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7 |
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8 | Namespace ActiveBasic
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9 | Namespace CType
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10 |
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11 | Namespace Detail
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12 |
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13 | Function Widen(c As CHAR) As WCHAR
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14 | Return c As Byte As WCHAR
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15 | End Function
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16 |
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17 | Function Narrow(c As WCHAR) As CHAR
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18 | Return c As Byte As CHAR
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19 | End Function
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20 |
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21 | End Namespace 'Detail
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22 |
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23 | /*!
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24 | @brief ASCIIのアルファベットまたは数字かどうか
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25 | @author Egtra
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26 | @date 2007/11/25
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27 | */
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28 | Function IsAlnum(c As WCHAR) As Boolean
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29 | Return IsUpper(c) Or IsLower(c) Or IsDigit(c)
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30 | End Function
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31 |
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32 | /*!
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33 | @brief ASCIIのアルファベットかどうか
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34 | @author Egtra
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35 | @date 2007/11/25
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36 | */
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37 | Function IsAlpha(c As WCHAR) As Boolean
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38 | Return IsUpper(c) Or IsLower(c)
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39 | End Function
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40 |
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41 | /*!
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42 | @brief ASCIIの行内に置ける空白文字かどうか
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43 | @author Egtra
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44 | @date 2007/11/25
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45 | ようするにASCIIでは空白とタブ
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46 | */
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47 | Function IsBlank(c As WCHAR) As Boolean
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48 | Return c = &h20 Or c = &h09 'space or tab
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49 | End Function
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50 |
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51 | /*!
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52 | @brief ASCIIの制御文字かどうか
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53 | @author Egtra
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54 | @date 2007/11/25
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55 | */
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56 | Function IsCntrl(c As WCHAR) As Boolean
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57 | Return c < &h20 Or c = &h7f
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58 | End Function
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59 |
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60 | /*!
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61 | @brief ASCIIの数字かどうか
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62 | @author Egtra
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63 | @date 2007/11/25
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64 | */
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65 | Function IsDigit(c As WCHAR) As Boolean
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66 | Return (c As DWord Xor &h30) < 10
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67 | End Function
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68 |
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69 | /*!
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70 | @brief ASCIIの図形文字かどうか
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71 | @author Egtra
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72 | @date 2007/11/25
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73 | 図形文字とは、空白以外の表示文字
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74 | */
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75 | Function IsGraph(c As WCHAR) As Boolean
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76 | Return (c As DWord - &h21) < (&h7e - &h21)
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77 | End Function
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78 |
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79 | /*!
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80 | @brief ASCIIのアルファベッの小文字かどうか
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81 | @author Egtra
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82 | @date 2007/11/25
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83 | */
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84 | Function IsLower(c As WCHAR) As Boolean
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85 | Return c As DWord - &h61 < 26 ' &h61 = Asc("a")
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86 | End Function
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87 |
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88 | /*!
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89 | @brief ASCIIの表示文字かどうか
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90 | @author Egtra
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91 | @date 2007/11/25
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92 | 制御文字でないもの、空白も表示文字に含む
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93 | */
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94 | Function IsPrint(c As WCHAR) As Boolean
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95 | Return (c As DWord - &h20) < (&h7e - &h20)
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96 | End Function
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97 |
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98 | /*!
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99 | @brief ASCIIの区切り数字かどうか
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100 | @author Egtra
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101 | @date 2007/11/25
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102 | アルファベットでも数字でもない図形文字のこと
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103 | */
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104 | Function IsPunct(c As WCHAR) As Boolean
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105 | Return c < &h7f And IsGraph(c) And (Not IsAlnum(c))
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106 | End Function
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107 |
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108 | /*!
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109 | @brief ASCIIの空白文字かどうか
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110 | @author Egtra
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111 | @date 2008/01/22
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112 | */
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113 | Function IsSpace(c As WCHAR) As Boolean
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114 | Return c As DWord - 9 < 4 Or c = &h20 ' &h41 = Asc("A")
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115 | End Function
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116 |
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117 | /*!
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118 | @brief ASCIIのアルファベットの大文字かどうか
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119 | @author Egtra
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120 | @date 2007/11/25
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121 | */
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122 | Function IsUpper(c As WCHAR) As Boolean
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123 | Return c As DWord - &h41 < 26 ' &h41 = Asc("A")
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124 | End Function
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125 |
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126 | /*!
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127 | @brief ASCIIの十六進法で記す際に用いられる文字かどうか
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128 | @author Egtra
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129 | @date 2007/11/25
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130 | */
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131 | Function IsXDigit(c As WCHAR) As Boolean
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132 | Return IsDigit(c) Or ((c As DWord And (Not &h20)) - &h41 < 5)
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133 | End Function
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134 |
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135 | /*!
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136 | @brief ASCIIのアルファベット大文字を小文字にする
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137 | @author Egtra
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138 | @date 2007/11/25
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139 | */
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140 | Function ToLower(c As WCHAR) As WCHAR
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141 | If IsUpper(c) Then
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142 | Return c Or &h20
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143 | Else
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144 | Return c
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145 | End If
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146 | End Function
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147 |
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148 | /*!
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149 | @brief ASCIIのアルファベット小文字を大文字にする
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150 | @author Egtra
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151 | @date 2007/11/25
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152 | */
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153 | Function ToUpper(c As WCHAR) As WCHAR
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154 | If IsLower(c) Then
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155 | Return c And (Not &h20)
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156 | Else
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157 | Return c
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158 | End If
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159 | End Function
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160 |
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161 | /*!
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162 | @overload
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163 | */
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164 | Function IsAlnum(c As CHAR) As Boolean
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165 | Return IsAlnum(Detail.Widen(c))
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166 | End Function
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167 |
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168 | /*!
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169 | @overload
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170 | */
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171 | Function IsAlpha(c As CHAR) As Boolean
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172 | Return IsAlpha(Detail.Widen(c))
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173 | End Function
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174 |
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175 | /*!
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176 | @overload
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177 | */
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178 | Function IsBlank(c As CHAR) As Boolean
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179 | Return IsBlank(Detail.Widen(c))
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180 | End Function
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181 |
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182 | /*!
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183 | @overload
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184 | */
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185 | Function IsCntrl(c As CHAR) As Boolean
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186 | Return IsCntrl(Detail.Widen(c))
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187 | End Function
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188 |
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189 | /*!
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190 | @overload
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191 | */
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192 | Function IsDigit(c As CHAR) As Boolean
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193 | Return IsDigit(Detail.Widen(c))
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194 | End Function
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195 |
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196 | /*!
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197 | @overload
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198 | */
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199 | Function IsGraph(c As CHAR) As Boolean
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200 | Return IsGraph(Detail.Widen(c))
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201 | End Function
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202 |
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203 | /*!
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204 | @overload
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205 | */
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206 | Function IsLower(c As CHAR) As Boolean
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207 | Return IsLower(Detail.Widen(c))
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208 | End Function
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209 |
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210 | /*!
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211 | @overload
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212 | */
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213 | Function IsPrint(c As CHAR) As Boolean
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214 | Return IsPrint(Detail.Widen(c))
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215 | End Function
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216 |
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217 | /*!
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218 | @overload
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219 | */
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220 | Function IsPunct(c As CHAR) As Boolean
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221 | Return IsPunct(Detail.Widen(c))
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222 | End Function
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223 |
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224 | /*!
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225 | @overload
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226 | */
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227 | Function IsSpace(c As CHAR) As Boolean
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228 | Return IsSpace(Detail.Widen(c))
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229 | End Function
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230 |
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231 | /*!
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232 | @overload
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233 | */
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234 | Function IsUpper(c As CHAR) As Boolean
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235 | Return IsUpper(Detail.Widen(c))
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236 | End Function
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237 |
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238 | /*!
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239 | @overload
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240 | */
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241 | Function IsXDigit(c As CHAR) As Boolean
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242 | Return IsXDigit(Detail.Widen(c))
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243 | End Function
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244 |
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245 | /*!
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246 | @overload
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247 | */
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248 | Function ToLower(c As CHAR) As CHAR
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249 | Return Detail.Narrow(ToLower(Detail.Widen(c)))
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250 | End Function
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251 |
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252 | /*!
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253 | @overload
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254 | */
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255 | Function ToUpper(c As CHAR) As CHAR
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256 | Return Detail.Narrow(ToUpper(Detail.Widen(c)))
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257 | End Function
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258 |
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259 | End Namespace 'CType
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260 | End Namespace 'ActiveBasic
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