1 | unit Functions; |
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2 | |
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3 | interface |
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4 | |
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5 | uses TypeDefs, Classes; |
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6 | |
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7 | function BoolToStr(bool: Boolean): String; |
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8 | function HexToLong(hex: String): LongWord; |
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9 | function Decode_Int(buffer: TByteData): LongWord; |
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10 | function Encode_Int(input: LongWord): TByteData; |
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11 | function Decode_Float(buffer: TByteData): Single; |
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12 | function Encode_Float(input: Single): TByteData; |
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13 | function IntToBin(Value: Byte): String; |
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14 | function DataToBin(Data: TByteData): String; |
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15 | function BinToInt(bin: String): Byte; |
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16 | |
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17 | function StringSmaller(string1, string2: String): Boolean; |
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18 | |
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19 | function FormatNumber(Value: LongWord; Width: Byte; leadingzeros: Char): String; |
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20 | function FormatFileSize(size: LongWord): String; |
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21 | function CreateHexString(Data: TByteData; HexOnly: Boolean): String; |
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22 | function DecodeHexString(hex: String): TByteData; |
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23 | function GetWinFileName(Name: String): String; |
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24 | //function GetExtractPath: String; |
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25 | |
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26 | function Explode(_string: String; delimiter: Char): TStrings; |
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27 | |
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28 | |
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29 | implementation |
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30 | |
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31 | uses SysUtils, Math, StrUtils; |
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32 | |
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33 | type |
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34 | TValueSwitcher = record |
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35 | case IsFloat: Boolean of |
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36 | True: (ValueFloat: Single); |
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37 | False: (ValueInt: LongWord); |
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38 | end; |
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39 | |
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40 | |
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41 | |
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42 | function BoolToStr(bool: Boolean): String; |
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43 | begin |
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44 | if bool then |
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45 | Result := 'true' |
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46 | else |
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47 | Result := 'false'; |
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48 | end; |
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49 | |
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50 | |
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51 | function HexToLong(hex: String): LongWord; |
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52 | |
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53 | function NormalizeHexString(var hex: String): Boolean; |
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54 | var |
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55 | i: Byte; |
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56 | begin |
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57 | Result := True; |
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58 | if hex[1] = '$' then |
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59 | begin |
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60 | for i := 1 to Length(hex) - 1 do |
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61 | hex[i] := hex[i + 1]; |
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62 | SetLength(hex, Length(hex) - 1); |
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63 | end; |
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64 | if (hex[1] = '0') and (UpCase(hex[2]) = 'X') then |
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65 | begin |
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66 | for i := 1 to Length(hex) - 2 do |
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67 | hex[i] := hex[i + 2]; |
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68 | SetLength(hex, Length(hex) - 2); |
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69 | end; |
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70 | if Length(hex) = 0 then |
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71 | Result := False; |
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72 | end; |
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73 | |
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74 | begin |
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75 | if NormalizeHexString(hex) then |
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76 | Result := StrToInt(hex) |
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77 | else |
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78 | Result := 0; |
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79 | end; |
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80 | |
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81 | |
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82 | function Decode_Int(buffer: TByteData): LongWord; |
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83 | begin |
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84 | Result := buffer[0] + buffer[1] * 256 + buffer[2] * 256 * 256 + buffer[3] * 256 * 256 * 256; |
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85 | end; |
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86 | |
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87 | |
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88 | function Encode_Int(input: LongWord): TByteData; |
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89 | begin |
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90 | SetLength(Result, 4); |
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91 | Result[0] := input mod 256; |
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92 | input := input div 256; |
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93 | Result[1] := input mod 256; |
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94 | input := input div 256; |
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95 | Result[2] := input mod 256; |
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96 | input := input div 256; |
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97 | Result[3] := input mod 256; |
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98 | end; |
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99 | |
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100 | |
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101 | function Decode_Float(buffer: TByteData): Single; |
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102 | var |
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103 | _valueswitcher: TValueSwitcher; |
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104 | begin |
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105 | _valueswitcher.ValueInt := Decode_Int(buffer); |
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106 | Result := _valueswitcher.ValueFloat; |
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107 | if IsNAN(Result) then |
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108 | Result := 0.0; |
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109 | end; |
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110 | |
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111 | |
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112 | function Encode_Float(input: Single): TByteData; |
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113 | var |
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114 | _valueswitcher: TValueSwitcher; |
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115 | begin |
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116 | _valueswitcher.ValueFloat := input; |
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117 | Result := Encode_Int(_valueswitcher.ValueInt); |
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118 | end; |
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119 | |
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120 | |
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121 | function IntToBin(Value: Byte): String; |
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122 | var |
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123 | i: Byte; |
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124 | begin |
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125 | Result := ''; |
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126 | for i := 7 downto 0 do |
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127 | Result := Result + IntToStr((Value shr i) and $01); |
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128 | end; |
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129 | |
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130 | |
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131 | function DataToBin(Data: TByteData): String; |
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132 | var |
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133 | i, j: Byte; |
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134 | singlebyte: Byte; |
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135 | bytepart: String; |
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136 | begin |
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137 | SetLength(bytepart, 8); |
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138 | Result := ''; |
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139 | for i := 0 to High(Data) do |
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140 | begin |
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141 | singlebyte := Data[i]; |
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142 | for j := 7 downto 0 do |
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143 | begin |
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144 | bytepart[j + 1] := Char((singlebyte and $01) + 48); |
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145 | singlebyte := singlebyte shr 1; |
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146 | end; |
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147 | Result := Result + bytepart + ' '; |
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148 | end; |
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149 | end; |
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150 | |
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151 | |
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152 | function BinToInt(bin: String): Byte; |
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153 | var |
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154 | Add: Integer; |
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155 | i: Byte; |
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156 | begin |
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157 | Result := 0; |
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158 | if Length(bin) <> 8 then |
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159 | Exit; |
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160 | Add := 1; |
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161 | for i := 8 downto 1 do |
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162 | begin |
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163 | if not (bin[i] in ['0', '1']) then |
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164 | Exit; |
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165 | if bin[i] = '1' then |
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166 | Inc(Result, Add); |
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167 | Add := Add shl 1; |
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168 | end; |
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169 | end; |
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170 | |
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171 | |
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172 | |
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173 | function FormatNumber(Value: LongWord; Width: Byte; leadingzeros: Char): String; |
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174 | begin |
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175 | Result := AnsiReplaceStr(Format('%' + IntToStr(Width) + 'u', [Value]), ' ', leadingzeros); |
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176 | end; |
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177 | |
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178 | |
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179 | |
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180 | |
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181 | function FormatFileSize(size: LongWord): String; |
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182 | var |
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183 | floatformat: TFormatSettings; |
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184 | begin |
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185 | floatformat.DecimalSeparator := '.'; |
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186 | if size >= 1000 * 1024 * 1024 then |
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187 | Result := FloatToStrF(size / 1024 / 1024 / 1024, ffFixed, 5, 1, floatformat) + ' GB' |
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188 | else |
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189 | if size >= 1000 * 1024 then |
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190 | Result := FloatToStrF(size / 1024 / 1024, ffFixed, 5, 1, floatformat) + ' MB' |
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191 | else |
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192 | if size >= 1000 then |
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193 | Result := FloatToStrF(size / 1024, ffFixed, 5, 1, floatformat) + ' KB' |
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194 | else |
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195 | Result := IntToStr(size) + ' B'; |
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196 | end; |
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197 | |
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198 | |
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199 | |
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200 | |
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201 | function CreateHexString(Data: TByteData; HexOnly: Boolean): String; |
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202 | var |
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203 | string_build, ascii_version: String; |
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204 | i: Integer; |
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205 | begin |
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206 | string_build := ''; |
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207 | ascii_version := ''; |
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208 | for i := 0 to High(Data) do |
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209 | begin |
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210 | if not HexOnly then |
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211 | if (i mod 16) = 0 then |
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212 | string_build := string_build + '0x' + IntToHex(i, 6) + ' '; |
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213 | string_build := string_build + IntToHex(Data[i], 2); |
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214 | if not HexOnly then |
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215 | begin |
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216 | if Data[i] >= 32 then |
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217 | ascii_version := ascii_version + Chr(Data[i]) |
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218 | else |
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219 | ascii_version := ascii_version + '.'; |
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220 | if ((i + 1) mod 2) = 0 then |
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221 | string_build := string_build + #32; |
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222 | if ((i + 1) mod 16) = 0 then |
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223 | begin |
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224 | string_build := string_build + #32 + ascii_version + CrLf; |
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225 | ascii_version := ''; |
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226 | end; |
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227 | end; |
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228 | end; |
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229 | Result := string_build; |
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230 | end; |
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231 | |
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232 | |
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233 | |
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234 | |
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235 | function DecodeHexString(hex: String): TByteData; |
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236 | var |
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237 | i: Integer; |
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238 | begin |
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239 | SetLength(Result, Length(hex) div 2); |
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240 | for i := 0 to Length(Result) do |
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241 | begin |
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242 | Result[i] := 0; |
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243 | case UpCase(hex[1 + i * 2]) of |
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244 | '0'..'9': |
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245 | Result[i] := (Ord(UpCase(hex[1 + i * 2])) - 48) * 16; |
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246 | 'A'..'F': |
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247 | Result[i] := (Ord(UpCase(hex[1 + i * 2])) - 55) * 16; |
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248 | end; |
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249 | case UpCase(hex[1 + i * 2 + 1]) of |
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250 | '0'..'9': |
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251 | Result[i] := Result[i] + (Ord(UpCase(hex[1 + i * 2 + 1])) - 48); |
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252 | 'A'..'F': |
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253 | Result[i] := Result[i] + (Ord(UpCase(hex[1 + i * 2 + 1])) - 55); |
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254 | end; |
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255 | end; |
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256 | end; |
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257 | |
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258 | |
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259 | |
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260 | |
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261 | function StringSmaller(string1, string2: String): Boolean; |
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262 | var |
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263 | i: Integer; |
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264 | len: Integer; |
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265 | begin |
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266 | len := Min(Length(string1), Length(string2)); |
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267 | for i := 1 to len do |
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268 | if Ord(string1[i]) <> Ord(string2[i]) then |
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269 | begin |
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270 | Result := Ord(string1[i]) < Ord(string2[i]); |
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271 | Exit; |
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272 | end; |
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273 | Result := Length(string1) < Length(string2); |
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274 | end; |
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275 | |
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276 | |
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277 | |
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278 | function Explode(_string: String; delimiter: Char): TStrings; |
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279 | var |
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280 | start, len: Word; |
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281 | begin |
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282 | Result := TStringList.Create; |
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283 | start := 1; |
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284 | while PosEx(delimiter, _string, start) > 0 do |
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285 | begin |
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286 | len := PosEx(delimiter, _string, start) - start; |
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287 | Result.Add(MidStr(_string, start, len)); |
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288 | start := start + len + 1; |
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289 | end; |
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290 | Result.Add(MidStr(_string, start, Length(_string) - start + 1)); |
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291 | end; |
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292 | |
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293 | |
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294 | function GetWinFileName(Name: String): String; |
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295 | begin |
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296 | Result := Name; |
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297 | Result := AnsiReplaceStr(Result, '\', '__'); |
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298 | Result := AnsiReplaceStr(Result, '/', '__'); |
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299 | Result := AnsiReplaceStr(Result, '>', '__'); |
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300 | Result := AnsiReplaceStr(Result, '<', '__'); |
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301 | end; |
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302 | |
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303 | |
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304 | end. |
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