[388] | 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 | Function IsPrint(c As WCHAR) As Boolean
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| 89 | Return (c As DWord - &h20) < (&h7e - &h20)
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| 90 | End Function
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| 91 |
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| 92 | /*!
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| 93 | @brief ASCIIの区切り数字かどうか
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| 94 | @author Egtra
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| 95 | @date 2007/11/25
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| 96 | 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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| 97 | */
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| 98 | Function IsPunct(c As WCHAR) As Boolean
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| 99 | Return c < &h7f And IsGraph(c) And (Not IsAlnum(c))
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| 100 | End Function
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| 101 |
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| 102 | /*!
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| 103 | @brief ASCIIのアルファベットの大文字かどうか
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| 104 | @author Egtra
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| 105 | @date 2007/11/25
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| 106 | */
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| 107 | Function IsUpper(c As WCHAR) As Boolean
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| 108 | Return c As DWord - &h41 < 26 ' &h41 = Asc("A")
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| 109 | End Function
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| 110 |
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| 111 | /*!
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| 112 | @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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| 113 | @author Egtra
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| 114 | @date 2007/11/25
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| 115 | */
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| 116 | Function IsXDigit(c As WCHAR) As Boolean
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| 117 | Return IsDigit(c) Or ((c As DWord And (Not &h20)) - &h41 < 5)
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| 118 | End Function
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| 119 |
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| 120 | /*!
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| 121 | @brief ASCIIのアルファベット大文字を小文字にする
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| 122 | @author Egtra
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| 123 | @date 2007/11/25
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| 124 | */
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| 125 | Function ToLower(c As WCHAR) As WCHAR
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| 126 | If IsUpper(c) Then
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| 127 | Return c Or &h20
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| 128 | Else
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| 129 | Return c
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| 130 | End If
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| 131 | End Function
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| 132 |
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| 133 | /*!
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| 134 | @brief ASCIIのアルファベット小文字を大文字にする
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| 135 | @author Egtra
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| 136 | @date 2007/11/25
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| 137 | */
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| 138 | Function ToUpper(c As WCHAR) As WCHAR
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| 139 | If IsLower(c) Then
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| 140 | Return c And (Not &h20)
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| 141 | Else
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| 142 | Return c
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| 143 | End If
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| 144 | End Function
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| 145 |
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| 146 | /*!
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| 147 | @overload
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| 148 | */
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| 149 | Function IsAlnum(c As CHAR) As Boolean
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| 150 | Return IsAlnum(Detail.Widen(c))
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| 151 | End Function
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| 152 |
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| 153 | /*!
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| 154 | @overload
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| 155 | */
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| 156 | Function IsAlpha(c As CHAR) As Boolean
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| 157 | Return IsAlpha(Detail.Widen(c))
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| 158 | End Function
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| 159 |
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| 160 | /*!
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| 161 | @overload
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| 162 | */
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| 163 | Function IsBlank(c As CHAR) As Boolean
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| 164 | Return IsBlank(Detail.Widen(c))
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| 165 | End Function
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| 166 |
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| 167 | /*!
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| 168 | @overload
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| 169 | */
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| 170 | Function IsCntrl(c As CHAR) As Boolean
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| 171 | Return IsCntrl(Detail.Widen(c))
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| 172 | End Function
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| 173 |
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| 174 | /*!
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| 175 | @overload
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| 176 | */
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| 177 | Function IsDigit(c As CHAR) As Boolean
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| 178 | Return IsDigit(Detail.Widen(c))
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| 179 | End Function
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| 180 |
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| 181 | /*!
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| 182 | @overload
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| 183 | */
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| 184 | Function IsGraph(c As CHAR) As Boolean
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| 185 | Return IsGraph(Detail.Widen(c))
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| 186 | End Function
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| 187 |
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| 188 | /*!
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| 189 | @overload
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| 190 | */
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| 191 | Function IsLower(c As CHAR) As Boolean
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| 192 | Return IsLower(Detail.Widen(c))
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| 193 | End Function
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| 194 |
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| 195 | /*!
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| 196 | @overload
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| 197 | */
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| 198 | Function IsPrint(c As CHAR) As Boolean
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| 199 | Return IsPrint(Detail.Widen(c))
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| 200 | End Function
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| 201 |
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| 202 | /*!
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| 203 | @overload
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| 204 | */
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| 205 | Function IsPunct(c As CHAR) As Boolean
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| 206 | Return IsPunct(Detail.Widen(c))
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| 207 | End Function
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| 208 |
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| 209 | /*!
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| 210 | @overload
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| 211 | */
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| 212 | Function IsUpper(c As CHAR) As Boolean
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| 213 | Return IsUpper(Detail.Widen(c))
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| 214 | End Function
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| 215 |
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| 216 | /*!
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| 217 | @overload
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| 218 | */
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| 219 | Function IsXDigit(c As CHAR) As Boolean
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| 220 | Return IsXDigit(Detail.Widen(c))
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| 221 | End Function
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| 222 |
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| 223 | /*!
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| 224 | @overload
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| 225 | */
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| 226 | Function ToLower(c As CHAR) As CHAR
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| 227 | Return Detail.Narrow(ToLower(Detail.Widen(c)))
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| 228 | End Function
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| 229 |
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| 230 | /*!
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| 231 | @overload
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| 232 | */
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| 233 | Function ToUpper(c As CHAR) As CHAR
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| 234 | Return Detail.Narrow(ToUpper(Detail.Widen(c)))
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| 235 | End Function
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| 236 |
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| 237 | End Namespace
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| 238 | End Namespace
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