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| author | deepakjadmin |
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| date | Wed, 20 Jan 2016 11:55:01 -0500 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mayachemtools/docs/modules/html/code/ConversionsUtil.html Wed Jan 20 11:55:01 2016 -0500 @@ -0,0 +1,222 @@ +<html> +<head> +<title>MayaChemTools:Code:ConversionsUtil.pm</title> +<meta http-equiv="content-type" content="text/html;charset=utf-8"> +<link rel="stylesheet" type="text/css" href="../../../css/MayaChemToolsCode.css"> +</head> +<body leftmargin="20" rightmargin="20" topmargin="10" bottommargin="10"> +<br/> +<center> +<a href="http://www.mayachemtools.org" title="MayaChemTools Home"><img src="../../../images/MayaChemToolsLogo.gif" border="0" alt="MayaChemTools"></a> +</center> +<br/> +<pre> +<a name="package-ConversionsUtil-"></a> 1 <span class="k">package </span><span class="i">ConversionsUtil</span><span class="sc">;</span> + 2 <span class="c">#</span> + 3 <span class="c"># $RCSfile: ConversionsUtil.pm,v $</span> + 4 <span class="c"># $Date: 2015/02/28 20:47:02 $</span> + 5 <span class="c"># $Revision: 1.22 $</span> + 6 <span class="c">#</span> + 7 <span class="c"># Author: Manish Sud <msud@san.rr.com></span> + 8 <span class="c">#</span> + 9 <span class="c"># Copyright (C) 2015 Manish Sud. All rights reserved.</span> + 10 <span class="c">#</span> + 11 <span class="c"># This file is part of MayaChemTools.</span> + 12 <span class="c">#</span> + 13 <span class="c"># MayaChemTools is free software; you can redistribute it and/or modify it under</span> + 14 <span class="c"># the terms of the GNU Lesser General Public License as published by the Free</span> + 15 <span class="c"># Software Foundation; either version 3 of the License, or (at your option) any</span> + 16 <span class="c"># later version.</span> + 17 <span class="c">#</span> + 18 <span class="c"># MayaChemTools is distributed in the hope that it will be useful, but without</span> + 19 <span class="c"># any warranty; without even the implied warranty of merchantability of fitness</span> + 20 <span class="c"># for a particular purpose. See the GNU Lesser General Public License for more</span> + 21 <span class="c"># details.</span> + 22 <span class="c">#</span> + 23 <span class="c"># You should have received a copy of the GNU Lesser General Public License</span> + 24 <span class="c"># along with MayaChemTools; if not, see <http://www.gnu.org/licenses/> or</span> + 25 <span class="c"># write to the Free Software Foundation Inc., 59 Temple Place, Suite 330,</span> + 26 <span class="c"># Boston, MA, 02111-1307, USA.</span> + 27 <span class="c">#</span> + 28 + 29 <span class="k">use</span> <span class="w">strict</span><span class="sc">;</span> + 30 <span class="k">use</span> <span class="w">Exporter</span><span class="sc">;</span> + 31 <span class="k">use</span> <span class="w">Constants</span><span class="sc">;</span> + 32 + 33 <span class="k">use</span> <span class="w">vars</span> <span class="q">qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS)</span><span class="sc">;</span> + 34 + 35 <span class="i">@ISA</span> = <span class="q">qw(Exporter)</span><span class="sc">;</span> + 36 + 37 <span class="c"># Groups of conversion functions...</span> + 38 <span class="k">my</span><span class="s">(</span><span class="i">@MathConversions</span><span class="s">)</span> = <span class="q">qw(DegreesToRadians RadiansToDegrees)</span><span class="sc">;</span> + 39 <span class="k">my</span><span class="s">(</span><span class="i">@NumericBaseConversions</span><span class="s">)</span> = <span class="q">qw(BinaryToDecimal DecimalToBinary HexadecimalToDecimal DecimalToHexadecimal OctalToDecimal DecimalToOctal BinaryToHexadecimal HexadecimalToBinary HexadecimalToOctal OctalToHexadecimal StringToBinary StringToHexadecimal)</span><span class="sc">;</span> + 40 + 41 <span class="c"># Export all conversion functions...</span> + 42 <span class="i">@EXPORT</span> = <span class="s">(</span><span class="i">@MathConversions</span><span class="cm">,</span> <span class="i">@NumericBaseConversions</span><span class="s">)</span><span class="sc">;</span> + 43 <span class="i">@EXPORT_OK</span> = <span class="q">qw()</span><span class="sc">;</span> + 44 + 45 <span class="i">%EXPORT_TAGS</span> = <span class="s">(</span> + 46 <span class="w">math</span> <span class="cm">=></span> <span class="s">[</span><span class="i">@MathConversions</span><span class="s">]</span><span class="cm">,</span> + 47 <span class="w">all</span> <span class="cm">=></span> <span class="s">[</span><span class="i">@EXPORT</span><span class="cm">,</span> <span class="i">@EXPORT_OK</span><span class="s">]</span> + 48 <span class="s">)</span><span class="sc">;</span> + 49 + 50 + 51 <span class="c"># Degrees to radians...</span> +<a name="DegreesToRadians-"></a> 52 <span class="k">sub </span><span class="m">DegreesToRadians ($;$)</span> <span class="s">{</span> + 53 <span class="k">my</span><span class="s">(</span><span class="i">$Degrees</span><span class="cm">,</span> <span class="i">$IgnoreWrap</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 54 <span class="k">my</span><span class="s">(</span><span class="i">$Radians</span><span class="cm">,</span> <span class="i">$WrapValue</span><span class="s">)</span><span class="sc">;</span> + 55 + 56 <span class="i">$WrapValue</span> = <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$IgnoreWrap</span><span class="s">)</span> && <span class="i">$IgnoreWrap</span><span class="s">)</span> ? <span class="n">0</span> <span class="co">:</span> <span class="n">1</span><span class="sc">;</span> + 57 <span class="k">if</span> <span class="s">(</span><span class="i">$Degrees</span> > <span class="n">360</span> && <span class="i">$WrapValue</span><span class="s">)</span> <span class="s">{</span> + 58 <span class="i">$Degrees</span> = <span class="i">$Degrees</span> % <span class="n">360</span><span class="sc">;</span> + 59 <span class="s">}</span> + 60 <span class="i">$Radians</span> = <span class="s">(</span><span class="i">$Degrees</span> * <span class="w">TwoPi</span><span class="s">)</span> / <span class="n">360</span><span class="sc">;</span> + 61 + 62 <span class="k">return</span> <span class="i">$Radians</span><span class="sc">;</span> + 63 <span class="s">}</span> + 64 + 65 <span class="c"># Radians to degrees...</span> +<a name="RadiansToDegrees-"></a> 66 <span class="k">sub </span><span class="m">RadiansToDegrees ($;$)</span> <span class="s">{</span> + 67 <span class="k">my</span><span class="s">(</span><span class="i">$Radians</span><span class="cm">,</span> <span class="i">$IgnoreWrap</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 68 <span class="k">my</span><span class="s">(</span><span class="i">$Degrees</span><span class="cm">,</span> <span class="i">$WrapValue</span><span class="s">)</span><span class="sc">;</span> + 69 + 70 <span class="i">$WrapValue</span> = <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$IgnoreWrap</span><span class="s">)</span> && <span class="i">$IgnoreWrap</span><span class="s">)</span> ? <span class="n">0</span> <span class="co">:</span> <span class="n">1</span><span class="sc">;</span> + 71 <span class="i">$Degrees</span> = <span class="s">(</span><span class="i">$Radians</span> * <span class="n">360</span><span class="s">)</span> / <span class="w">TwoPi</span><span class="sc">;</span> + 72 <span class="k">if</span> <span class="s">(</span><span class="i">$Degrees</span> > <span class="n">360</span> && <span class="i">$WrapValue</span><span class="s">)</span> <span class="s">{</span> + 73 <span class="i">$Degrees</span> = <span class="i">$Degrees</span> % <span class="n">360</span><span class="sc">;</span> + 74 <span class="s">}</span> + 75 + 76 <span class="k">return</span> <span class="i">$Degrees</span><span class="sc">;</span> + 77 <span class="s">}</span> + 78 + 79 <span class="c"># Convert a binary string to a decimal number...</span> +<a name="BinaryToDecimal-"></a> 80 <span class="k">sub </span><span class="m">BinaryToDecimal ($)</span> <span class="s">{</span> + 81 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 82 + 83 <span class="k">if</span> <span class="s">(</span><span class="i">$Value</span> !~ <span class="q">/^0b/</span><span class="s">)</span> <span class="s">{</span> + 84 <span class="i">$Value</span> = <span class="q">"0b${Value}"</span><span class="sc">;</span> + 85 <span class="s">}</span> + 86 <span class="k">return</span> <span class="i">_ConvertToDecimal</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> + 87 <span class="s">}</span> + 88 + 89 <span class="c"># Convert a decimal number into a binary string...</span> +<a name="DecimalToBinary-"></a> 90 <span class="k">sub </span><span class="m">DecimalToBinary ($)</span> <span class="s">{</span> + 91 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 92 + 93 <span class="k">return</span> <span class="k">sprintf</span><span class="s">(</span><span class="q">"%b"</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> + 94 <span class="s">}</span> + 95 + 96 <span class="c"># Convert a hexadecimal string to a decimal number...</span> +<a name="HexadecimalToDecimal-"></a> 97 <span class="k">sub </span><span class="m">HexadecimalToDecimal ($)</span> <span class="s">{</span> + 98 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 99 + 100 <span class="k">if</span> <span class="s">(</span><span class="i">$Value</span> !~ <span class="q">/^0x/</span><span class="s">)</span> <span class="s">{</span> + 101 <span class="i">$Value</span> = <span class="q">"0x${Value}"</span><span class="sc">;</span> + 102 <span class="s">}</span> + 103 <span class="k">return</span> <span class="i">_ConvertToDecimal</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> + 104 <span class="s">}</span> + 105 + 106 <span class="c"># Convert a decimal number into a hexadecimal string...</span> +<a name="DecimalToHexadecimal-"></a> 107 <span class="k">sub </span><span class="m">DecimalToHexadecimal ($)</span> <span class="s">{</span> + 108 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 109 + 110 <span class="k">return</span> <span class="k">sprintf</span><span class="s">(</span><span class="q">"%x"</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> + 111 <span class="s">}</span> + 112 + 113 <span class="c"># Convert an octal string to a decimal number...</span> +<a name="OctalToDecimal-"></a> 114 <span class="k">sub </span><span class="m">OctalToDecimal ($)</span> <span class="s">{</span> + 115 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 116 + 117 <span class="k">if</span> <span class="s">(</span><span class="i">$Value</span> !~ <span class="q">/^0/</span><span class="s">)</span> <span class="s">{</span> + 118 <span class="i">$Value</span> = <span class="q">"0${Value}"</span><span class="sc">;</span> + 119 <span class="s">}</span> + 120 <span class="k">return</span> <span class="i">_ConvertToDecimal</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> + 121 <span class="s">}</span> + 122 + 123 <span class="c"># Convert a decimal number into an octal string...</span> +<a name="DecimalToOctal-"></a> 124 <span class="k">sub </span><span class="m">DecimalToOctal ($)</span> <span class="s">{</span> + 125 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 126 + 127 <span class="k">return</span> <span class="k">sprintf</span><span class="s">(</span><span class="q">"%o"</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> + 128 <span class="s">}</span> + 129 + 130 <span class="c"># Convert string into a binary string. Going from left to right, two ways of arranging bits</span> + 131 <span class="c"># inside each byte are available: Most Significat Bits (MSB) first or Least Significat Bits (LSB)</span> + 132 <span class="c"># first. Default is MSB corresponding to descending bits order (PerlSpeak) inside each</span> + 133 <span class="c"># each packed byte (Most singificat bits first).</span> + 134 <span class="c">#</span> +<a name="StringToBinary-"></a> 135 <span class="k">sub </span><span class="m">StringToBinary ($;$)</span> <span class="s">{</span> + 136 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="cm">,</span> <span class="i">$UseReverseBitOrder</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 137 <span class="k">my</span><span class="s">(</span><span class="i">$BinTemplate</span><span class="s">)</span><span class="sc">;</span> + 138 + 139 <span class="i">$BinTemplate</span> = <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$UseReverseBitOrder</span><span class="s">)</span> && <span class="i">$UseReverseBitOrder</span><span class="s">)</span> ? <span class="q">'b*'</span> <span class="co">:</span> <span class="q">'B*'</span><span class="sc">;</span> + 140 <span class="k">return</span> <span class="k">unpack</span><span class="s">(</span><span class="i">$BinTemplate</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> + 141 <span class="s">}</span> + 142 + 143 <span class="c"># Convert string into a hexadecimal string. Two ways of arranging nybbles (pair of 4 bits in each</span> + 144 <span class="c"># byte) are available: high nybbles first or low nybbles first. Default is MSB corresponding to high</span> + 145 <span class="c"># nybbles (PerlSpeak) first. Low and high nybbles correspond to pair of a low and high four bits in a byte.</span> + 146 <span class="c">#</span> +<a name="StringToHexadecimal-"></a> 147 <span class="k">sub </span><span class="m">StringToHexadecimal ($;$)</span> <span class="s">{</span> + 148 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="cm">,</span> <span class="i">$UseReverseBitOrder</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 149 <span class="k">my</span><span class="s">(</span><span class="i">$HexTemplate</span><span class="s">)</span><span class="sc">;</span> + 150 + 151 <span class="i">$HexTemplate</span> = <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$UseReverseBitOrder</span><span class="s">)</span> && <span class="i">$UseReverseBitOrder</span><span class="s">)</span> ? <span class="q">'h*'</span> <span class="co">:</span> <span class="q">'H*'</span><span class="sc">;</span> + 152 <span class="k">return</span> <span class="k">unpack</span><span class="s">(</span><span class="i">$HexTemplate</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="sc">;</span> + 153 <span class="s">}</span> + 154 + 155 <span class="c"># Convert a binary string into a hexadecimal string...</span> + 156 <span class="c">#</span> +<a name="BinaryToHexadecimal-"></a> 157 <span class="k">sub </span><span class="m">BinaryToHexadecimal ($;$)</span> <span class="s">{</span> + 158 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="cm">,</span> <span class="i">$UseReverseBitOrder</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 159 <span class="k">my</span><span class="s">(</span><span class="i">$BinTemplate</span><span class="cm">,</span> <span class="i">$HexTemplate</span><span class="s">)</span><span class="sc">;</span> + 160 + 161 <span class="i">$BinTemplate</span> = <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$UseReverseBitOrder</span><span class="s">)</span> && <span class="i">$UseReverseBitOrder</span><span class="s">)</span> ? <span class="q">'b*'</span> <span class="co">:</span> <span class="q">'B*'</span><span class="sc">;</span> + 162 <span class="i">$HexTemplate</span> = <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$UseReverseBitOrder</span><span class="s">)</span> && <span class="i">$UseReverseBitOrder</span><span class="s">)</span> ? <span class="q">'h*'</span> <span class="co">:</span> <span class="q">'H*'</span><span class="sc">;</span> + 163 + 164 <span class="k">return</span> <span class="k">unpack</span><span class="s">(</span><span class="i">$HexTemplate</span><span class="cm">,</span> <span class="k">pack</span><span class="s">(</span><span class="i">$BinTemplate</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="s">)</span><span class="sc">;</span> + 165 <span class="s">}</span> + 166 + 167 <span class="c"># Convert a hexadecimal string into a binary string...</span> + 168 <span class="c">#</span> +<a name="HexadecimalToBinary-"></a> 169 <span class="k">sub </span><span class="m">HexadecimalToBinary ($;$)</span> <span class="s">{</span> + 170 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="cm">,</span> <span class="i">$UseReverseBitOrder</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 171 <span class="k">my</span><span class="s">(</span><span class="i">$BinTemplate</span><span class="cm">,</span> <span class="i">$HexTemplate</span><span class="s">)</span><span class="sc">;</span> + 172 + 173 <span class="i">$BinTemplate</span> = <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$UseReverseBitOrder</span><span class="s">)</span> && <span class="i">$UseReverseBitOrder</span><span class="s">)</span> ? <span class="q">'b*'</span> <span class="co">:</span> <span class="q">'B*'</span><span class="sc">;</span> + 174 <span class="i">$HexTemplate</span> = <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$UseReverseBitOrder</span><span class="s">)</span> && <span class="i">$UseReverseBitOrder</span><span class="s">)</span> ? <span class="q">'h*'</span> <span class="co">:</span> <span class="q">'H*'</span><span class="sc">;</span> + 175 + 176 <span class="k">return</span> <span class="k">unpack</span><span class="s">(</span><span class="i">$BinTemplate</span><span class="cm">,</span> <span class="k">pack</span><span class="s">(</span><span class="i">$HexTemplate</span><span class="cm">,</span> <span class="i">$Value</span><span class="s">)</span><span class="s">)</span><span class="sc">;</span> + 177 <span class="s">}</span> + 178 + 179 <span class="c"># Convert a hexadecimal string into a octal string...</span> + 180 <span class="c">#</span> +<a name="HexadecimalToOctal-"></a> 181 <span class="k">sub </span><span class="m">HexadecimalToOctal</span> <span class="s">{</span> + 182 <span class="k">my</span><span class="s">(</span><span class="i">$Hexadecimal</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 183 + 184 <span class="k">return</span> <span class="i">DecimalToOctal</span><span class="s">(</span><span class="i">HexadecimalToDecimal</span><span class="s">(</span><span class="i">$Hexadecimal</span><span class="s">)</span><span class="s">)</span><span class="sc">;</span> + 185 <span class="s">}</span> + 186 + 187 <span class="c"># Convert a octal string into a hexadecimal string...</span> + 188 <span class="c">#</span> +<a name="OctalToHexadecimal-"></a> 189 <span class="k">sub </span><span class="m">OctalToHexadecimal</span> <span class="s">{</span> + 190 <span class="k">my</span><span class="s">(</span><span class="i">$Octal</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 191 + 192 <span class="k">return</span> <span class="i">DecimalToHexadecimal</span><span class="s">(</span><span class="i">OctalToDecimal</span><span class="s">(</span><span class="i">$Octal</span><span class="s">)</span><span class="s">)</span><span class="sc">;</span> + 193 <span class="s">}</span> + 194 + 195 <span class="c"># Use Perl oct function to convert binary, octal or hexadecimal strings into decimal numbers.</span> +<a name="_ConvertToDecimal-"></a> 196 <span class="k">sub </span><span class="m">_ConvertToDecimal ($)</span> <span class="s">{</span> + 197 <span class="k">my</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> + 198 + 199 <span class="k">return</span> <span class="s">(</span><span class="i">$Value</span> =~ <span class="q">/^0/</span><span class="s">)</span> ? <span class="k">oct</span><span class="s">(</span><span class="i">$Value</span><span class="s">)</span> <span class="co">:</span> <span class="i">$Value</span><span class="sc">;</span> + 200 <span class="s">}</span> + 201 +<a name="EOF-"></a></pre> +<p> </p> +<br /> +<center> +<img src="../../../images/h2o2.png"> +</center> +</body> +</html>