| 0 | 1 <html> | 
|  | 2 <head> | 
|  | 3 <title>MayaChemTools:Code:InfoSequenceFiles.pl</title> | 
|  | 4 <meta http-equiv="content-type" content="text/html;charset=utf-8"> | 
|  | 5 <link rel="stylesheet" type="text/css" href="../../../css/MayaChemToolsCode.css"> | 
|  | 6 </head> | 
|  | 7 <body leftmargin="20" rightmargin="20" topmargin="10" bottommargin="10"> | 
|  | 8 <br/> | 
|  | 9 <center> | 
|  | 10 <a href="http://www.mayachemtools.org" title="MayaChemTools Home"><img src="../../../images/MayaChemToolsLogo.gif" border="0" alt="MayaChemTools"></a> | 
|  | 11 </center> | 
|  | 12 <br/> | 
|  | 13 <pre> | 
|  | 14    1 #!/usr/bin/perl -w | 
|  | 15    2 <span class="c">#</span> | 
|  | 16    3 <span class="c"># $RCSfile: InfoSequenceFiles.pl,v $</span> | 
|  | 17    4 <span class="c"># $Date: 2015/02/28 20:46:20 $</span> | 
|  | 18    5 <span class="c"># $Revision: 1.29 $</span> | 
|  | 19    6 <span class="c">#</span> | 
|  | 20    7 <span class="c"># Author: Manish Sud <msud@san.rr.com></span> | 
|  | 21    8 <span class="c">#</span> | 
|  | 22    9 <span class="c"># Copyright (C) 2015 Manish Sud. All rights reserved.</span> | 
|  | 23   10 <span class="c">#</span> | 
|  | 24   11 <span class="c"># This file is part of MayaChemTools.</span> | 
|  | 25   12 <span class="c">#</span> | 
|  | 26   13 <span class="c"># MayaChemTools is free software; you can redistribute it and/or modify it under</span> | 
|  | 27   14 <span class="c"># the terms of the GNU Lesser General Public License as published by the Free</span> | 
|  | 28   15 <span class="c"># Software Foundation; either version 3 of the License, or (at your option) any</span> | 
|  | 29   16 <span class="c"># later version.</span> | 
|  | 30   17 <span class="c">#</span> | 
|  | 31   18 <span class="c"># MayaChemTools is distributed in the hope that it will be useful, but without</span> | 
|  | 32   19 <span class="c"># any warranty; without even the implied warranty of merchantability of fitness</span> | 
|  | 33   20 <span class="c"># for a particular purpose.  See the GNU Lesser General Public License for more</span> | 
|  | 34   21 <span class="c"># details.</span> | 
|  | 35   22 <span class="c">#</span> | 
|  | 36   23 <span class="c"># You should have received a copy of the GNU Lesser General Public License</span> | 
|  | 37   24 <span class="c"># along with MayaChemTools; if not, see <http://www.gnu.org/licenses/> or</span> | 
|  | 38   25 <span class="c"># write to the Free Software Foundation Inc., 59 Temple Place, Suite 330,</span> | 
|  | 39   26 <span class="c"># Boston, MA, 02111-1307, USA.</span> | 
|  | 40   27 <span class="c">#</span> | 
|  | 41   28 | 
|  | 42   29 <span class="k">use</span> <span class="w">strict</span><span class="sc">;</span> | 
|  | 43   30 <span class="k">use</span> <span class="w">FindBin</span><span class="sc">;</span> <span class="k">use</span> <span class="w">lib</span> <span class="q">"$FindBin::Bin/../lib"</span><span class="sc">;</span> | 
|  | 44   31 <span class="k">use</span> <span class="w">Getopt::Long</span><span class="sc">;</span> | 
|  | 45   32 <span class="k">use</span> <span class="w">File::Basename</span><span class="sc">;</span> | 
|  | 46   33 <span class="k">use</span> <span class="w">Text::ParseWords</span><span class="sc">;</span> | 
|  | 47   34 <span class="k">use</span> <span class="w">Benchmark</span><span class="sc">;</span> | 
|  | 48   35 <span class="k">use</span> <span class="w">FileUtil</span><span class="sc">;</span> | 
|  | 49   36 <span class="k">use</span> <span class="w">TextUtil</span><span class="sc">;</span> | 
|  | 50   37 <span class="k">use</span> <span class="w">SequenceFileUtil</span><span class="sc">;</span> | 
|  | 51   38 <span class="k">use</span> <span class="w">StatisticsUtil</span><span class="sc">;</span> | 
|  | 52   39 | 
|  | 53   40 <span class="k">my</span><span class="s">(</span><span class="i">$ScriptName</span><span class="cm">,</span> <span class="i">%Options</span><span class="cm">,</span> <span class="i">$StartTime</span><span class="cm">,</span> <span class="i">$EndTime</span><span class="cm">,</span> <span class="i">$TotalTime</span><span class="s">)</span><span class="sc">;</span> | 
|  | 54   41 | 
|  | 55   42 <span class="c"># Autoflush STDOUT</span> | 
|  | 56   43 <span class="i">$|</span> = <span class="n">1</span><span class="sc">;</span> | 
|  | 57   44 | 
|  | 58   45 <span class="c"># Starting message...</span> | 
|  | 59   46 <span class="i">$ScriptName</span> = <span class="i">basename</span><span class="s">(</span><span class="i">$0</span><span class="s">)</span><span class="sc">;</span> | 
|  | 60   47 <span class="k">print</span> <span class="q">"\n$ScriptName: Starting...\n\n"</span><span class="sc">;</span> | 
|  | 61   48 <span class="i">$StartTime</span> = <span class="w">new</span> <span class="w">Benchmark</span><span class="sc">;</span> | 
|  | 62   49 | 
|  | 63   50 <span class="c"># Get the options and setup script...</span> | 
|  | 64   51 <span class="i">SetupScriptUsage</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 65   52 <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">help</span>} || <span class="i">@ARGV</span> < <span class="n">1</span><span class="s">)</span> <span class="s">{</span> | 
|  | 66   53   <span class="k">die</span> <span class="i">GetUsageFromPod</span><span class="s">(</span><span class="q">"$FindBin::Bin/$ScriptName"</span><span class="s">)</span><span class="sc">;</span> | 
|  | 67   54 <span class="s">}</span> | 
|  | 68   55 | 
|  | 69   56 <span class="k">my</span><span class="s">(</span><span class="i">@SequenceFilesList</span><span class="s">)</span><span class="sc">;</span> | 
|  | 70   57 <span class="i">@SequenceFilesList</span> = <span class="i">ExpandFileNames</span><span class="s">(</span>\<span class="i">@ARGV</span><span class="cm">,</span> <span class="q">"aln msf fasta fta pir"</span><span class="s">)</span><span class="sc">;</span> | 
|  | 71   58 | 
|  | 72   59 <span class="k">print</span> <span class="q">"Processing options...\n"</span><span class="sc">;</span> | 
|  | 73   60 <span class="k">my</span><span class="s">(</span><span class="i">%OptionsInfo</span><span class="s">)</span><span class="sc">;</span> | 
|  | 74   61 <span class="i">ProcessOptions</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 75   62 | 
|  | 76   63 <span class="k">print</span> <span class="q">"Checking input sequence file(s)...\n"</span><span class="sc">;</span> | 
|  | 77   64 <span class="k">my</span><span class="s">(</span><span class="i">%SequenceFilesInfo</span><span class="s">)</span><span class="sc">;</span> | 
|  | 78   65 <span class="i">RetrieveSequenceFilesInfo</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 79   66 | 
|  | 80   67 <span class="k">my</span><span class="s">(</span><span class="i">$FileIndex</span><span class="s">)</span><span class="sc">;</span> | 
|  | 81   68 <span class="k">if</span> <span class="s">(</span><span class="i">@SequenceFilesList</span> > <span class="n">1</span><span class="s">)</span> <span class="s">{</span> | 
|  | 82   69   <span class="k">print</span> <span class="q">"\nProcessing sequence files...\n"</span><span class="sc">;</span> | 
|  | 83   70 <span class="s">}</span> | 
|  | 84   71 <span class="k">for</span> <span class="i">$FileIndex</span> <span class="s">(</span><span class="n">0</span> .. <span class="i">$#SequenceFilesList</span><span class="s">)</span> <span class="s">{</span> | 
|  | 85   72   <span class="k">if</span> <span class="s">(</span><span class="i">$SequenceFilesInfo</span>{<span class="w">FileOkay</span>}[<span class="i">$FileIndex</span>]<span class="s">)</span> <span class="s">{</span> | 
|  | 86   73     <span class="k">print</span> <span class="q">"\nProcessing file $SequenceFilesList[$FileIndex]...\n"</span><span class="sc">;</span> | 
|  | 87   74     <span class="i">ListSequenceFileInfo</span><span class="s">(</span><span class="i">$FileIndex</span><span class="s">)</span><span class="sc">;</span> | 
|  | 88   75   <span class="s">}</span> | 
|  | 89   76 <span class="s">}</span> | 
|  | 90   77 <span class="i">ListTotalSizeOfFiles</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 91   78 | 
|  | 92   79 <span class="k">print</span> <span class="q">"\n$ScriptName:Done...\n\n"</span><span class="sc">;</span> | 
|  | 93   80 | 
|  | 94   81 <span class="i">$EndTime</span> = <span class="w">new</span> <span class="w">Benchmark</span><span class="sc">;</span> | 
|  | 95   82 <span class="i">$TotalTime</span> = <span class="w">timediff</span> <span class="s">(</span><span class="i">$EndTime</span><span class="cm">,</span> <span class="i">$StartTime</span><span class="s">)</span><span class="sc">;</span> | 
|  | 96   83 <span class="k">print</span> <span class="q">"Total time: "</span><span class="cm">,</span> <span class="i">timestr</span><span class="s">(</span><span class="i">$TotalTime</span><span class="s">)</span><span class="cm">,</span> <span class="q">"\n"</span><span class="sc">;</span> | 
|  | 97   84 | 
|  | 98   85 <span class="c">###############################################################################</span> | 
|  | 99   86 | 
|  | 100   87 <span class="c"># List appropriate information...</span> | 
|  | 101 <a name="ListSequenceFileInfo-"></a>  88 <span class="k">sub </span><span class="m">ListSequenceFileInfo</span> <span class="s">{</span> | 
|  | 102   89   <span class="k">my</span><span class="s">(</span><span class="i">$Index</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 103   90   <span class="k">my</span><span class="s">(</span><span class="i">$SequenceFile</span><span class="cm">,</span> <span class="i">$SequenceDataRef</span><span class="s">)</span><span class="sc">;</span> | 
|  | 104   91 | 
|  | 105   92   <span class="i">$SequenceFile</span> = <span class="i">$SequenceFilesList</span>[<span class="i">$Index</span>]<span class="sc">;</span> | 
|  | 106   93 | 
|  | 107   94   <span class="i">$SequenceDataRef</span> = <span class="i">ReadSequenceFile</span><span class="s">(</span><span class="i">$SequenceFile</span><span class="s">)</span><span class="sc">;</span> | 
|  | 108   95 | 
|  | 109   96   <span class="k">my</span><span class="s">(</span><span class="i">$SequencesCount</span><span class="s">)</span> = <span class="i">$SequenceDataRef</span>->{<span class="w">Count</span>}<span class="sc">;</span> | 
|  | 110   97   <span class="k">print</span> <span class="q">"\nNumber of sequences: $SequencesCount\n"</span><span class="sc">;</span> | 
|  | 111   98 | 
|  | 112   99   <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">ListShortestSequence</span>} && <span class="s">(</span><span class="i">$SequencesCount</span> > <span class="n">1</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 113  100     <span class="k">my</span><span class="s">(</span><span class="i">$ShortestSeqID</span><span class="cm">,</span> <span class="i">$ShortestSeq</span><span class="cm">,</span> <span class="i">$ShortestSeqLen</span><span class="cm">,</span> <span class="i">$Description</span><span class="s">)</span> = <span class="i">GetShortestSequence</span><span class="s">(</span><span class="i">$SequenceDataRef</span><span class="cm">,</span> <span class="i">$OptionsInfo</span>{<span class="w">IgnoreGaps</span>}<span class="s">)</span><span class="sc">;</span> | 
|  | 114  101     <span class="k">print</span> <span class="q">"\nShortest sequence information:\nID: $ShortestSeqID; Length:$ShortestSeqLen\n"</span><span class="sc">;</span> | 
|  | 115  102     <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">DetailLevel</span>} >= <span class="n">2</span><span class="s">)</span> <span class="s">{</span> | 
|  | 116  103       <span class="k">print</span> <span class="q">"Description: $Description\n"</span><span class="sc">;</span> | 
|  | 117  104     <span class="s">}</span> | 
|  | 118  105     <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">DetailLevel</span>} >= <span class="n">3</span><span class="s">)</span> <span class="s">{</span> | 
|  | 119  106       <span class="k">print</span> <span class="q">"Sequence: $ShortestSeq\n"</span><span class="sc">;</span> | 
|  | 120  107     <span class="s">}</span> | 
|  | 121  108   <span class="s">}</span> | 
|  | 122  109   <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">ListLongestSequence</span>} && <span class="s">(</span><span class="i">$SequencesCount</span> > <span class="n">1</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 123  110     <span class="k">my</span><span class="s">(</span><span class="i">$LongestSeqID</span><span class="cm">,</span> <span class="i">$LongestSeq</span><span class="cm">,</span> <span class="i">$LongestSeqLen</span><span class="cm">,</span> <span class="i">$Description</span><span class="s">)</span> = <span class="i">GetLongestSequence</span><span class="s">(</span><span class="i">$SequenceDataRef</span><span class="cm">,</span> <span class="i">$OptionsInfo</span>{<span class="w">IgnoreGaps</span>}<span class="s">)</span><span class="sc">;</span> | 
|  | 124  111     <span class="k">print</span> <span class="q">"\nLongest sequence information:\nID: $LongestSeqID; Length: $LongestSeqLen\n"</span><span class="sc">;</span> | 
|  | 125  112     <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">DetailLevel</span>} >= <span class="n">2</span><span class="s">)</span> <span class="s">{</span> | 
|  | 126  113       <span class="k">print</span> <span class="q">"Description: $Description\n"</span><span class="sc">;</span> | 
|  | 127  114     <span class="s">}</span> | 
|  | 128  115     <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">DetailLevel</span>} >= <span class="n">3</span><span class="s">)</span> <span class="s">{</span> | 
|  | 129  116       <span class="k">print</span> <span class="q">"Sequence: $LongestSeq\n"</span><span class="sc">;</span> | 
|  | 130  117     <span class="s">}</span> | 
|  | 131  118   <span class="s">}</span> | 
|  | 132  119   <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">FrequencyAnalysis</span>} && <span class="s">(</span><span class="i">$SequencesCount</span> > <span class="n">1</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 133  120     <span class="i">PerformLengthFrequencyAnalysis</span><span class="s">(</span><span class="i">$SequenceDataRef</span><span class="s">)</span><span class="sc">;</span> | 
|  | 134  121   <span class="s">}</span> | 
|  | 135  122   <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">ListSequenceLengths</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 136  123     <span class="i">ListSequenceLengths</span><span class="s">(</span><span class="i">$SequenceDataRef</span><span class="s">)</span><span class="sc">;</span> | 
|  | 137  124   <span class="s">}</span> | 
|  | 138  125 | 
|  | 139  126   <span class="c"># File size and modification information...</span> | 
|  | 140  127   <span class="k">print</span> <span class="q">"\nFile size: "</span><span class="cm">,</span> <span class="i">FormatFileSize</span><span class="s">(</span><span class="i">$SequenceFilesInfo</span>{<span class="w">FileSize</span>}[<span class="i">$Index</span>]<span class="s">)</span><span class="cm">,</span> <span class="q">" \n"</span><span class="sc">;</span> | 
|  | 141  128   <span class="k">print</span> <span class="q">"Last modified: "</span><span class="cm">,</span> <span class="i">$SequenceFilesInfo</span>{<span class="w">FileLastModified</span>}[<span class="i">$Index</span>]<span class="cm">,</span> <span class="q">" \n"</span><span class="sc">;</span> | 
|  | 142  129 <span class="s">}</span> | 
|  | 143  130 | 
|  | 144  131 <span class="c"># List information about sequence lengths...</span> | 
|  | 145 <a name="ListSequenceLengths-"></a> 132 <span class="k">sub </span><span class="m">ListSequenceLengths</span> <span class="s">{</span> | 
|  | 146  133   <span class="k">my</span><span class="s">(</span><span class="i">$SequenceDataRef</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 147  134   <span class="k">my</span><span class="s">(</span><span class="i">$ID</span><span class="cm">,</span> <span class="i">$SeqLen</span><span class="cm">,</span> <span class="i">$Sequence</span><span class="cm">,</span> <span class="i">$Description</span><span class="s">)</span><span class="sc">;</span> | 
|  | 148  135 | 
|  | 149  136   <span class="k">print</span> <span class="q">"\nSequence lengths information:\n"</span><span class="sc">;</span> | 
|  | 150  137   <span class="k">for</span> <span class="i">$ID</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$SequenceDataRef</span>->{<span class="w">IDs</span>}}<span class="s">)</span> <span class="s">{</span> | 
|  | 151  138     <span class="i">$Sequence</span> = <span class="i">$SequenceDataRef</span>->{<span class="w">Sequence</span>}{<span class="i">$ID</span>}<span class="sc">;</span> | 
|  | 152  139     <span class="i">$Description</span> = <span class="i">$SequenceDataRef</span>->{<span class="w">Description</span>}{<span class="i">$ID</span>}<span class="sc">;</span> | 
|  | 153  140     <span class="i">$SeqLen</span> = <span class="i">GetSequenceLength</span><span class="s">(</span><span class="i">$Sequence</span><span class="cm">,</span> <span class="i">$OptionsInfo</span>{<span class="w">IgnoreGaps</span>}<span class="s">)</span><span class="sc">;</span> | 
|  | 154  141     <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">IgnoreGaps</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 155  142       <span class="i">$Sequence</span> = <span class="i">RemoveSequenceGaps</span><span class="s">(</span><span class="i">$Sequence</span><span class="s">)</span><span class="sc">;</span> | 
|  | 156  143     <span class="s">}</span> | 
|  | 157  144     <span class="k">print</span> <span class="q">"ID: $ID; Length:$SeqLen\n"</span><span class="sc">;</span> | 
|  | 158  145     <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">DetailLevel</span>} >= <span class="n">2</span><span class="s">)</span> <span class="s">{</span> | 
|  | 159  146       <span class="k">print</span> <span class="q">"Description: $Description\n"</span><span class="sc">;</span> | 
|  | 160  147     <span class="s">}</span> | 
|  | 161  148     <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">DetailLevel</span>} >= <span class="n">3</span><span class="s">)</span> <span class="s">{</span> | 
|  | 162  149       <span class="k">print</span> <span class="q">"Sequence: $Sequence\n"</span><span class="sc">;</span> | 
|  | 163  150     <span class="s">}</span> | 
|  | 164  151     <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">DetailLevel</span>} >= <span class="n">2</span><span class="s">)</span> <span class="s">{</span> | 
|  | 165  152       <span class="k">print</span> <span class="q">"\n"</span><span class="sc">;</span> | 
|  | 166  153     <span class="s">}</span> | 
|  | 167  154   <span class="s">}</span> | 
|  | 168  155 <span class="s">}</span> | 
|  | 169  156 | 
|  | 170  157 <span class="c"># Total size of all the fiels...</span> | 
|  | 171 <a name="ListTotalSizeOfFiles-"></a> 158 <span class="k">sub </span><span class="m">ListTotalSizeOfFiles</span> <span class="s">{</span> | 
|  | 172  159   <span class="k">my</span><span class="s">(</span><span class="i">$FileOkayCount</span><span class="cm">,</span> <span class="i">$TotalSize</span><span class="cm">,</span> <span class="i">$Index</span><span class="s">)</span><span class="sc">;</span> | 
|  | 173  160 | 
|  | 174  161   <span class="i">$FileOkayCount</span> = <span class="n">0</span><span class="sc">;</span> | 
|  | 175  162   <span class="i">$TotalSize</span> = <span class="n">0</span><span class="sc">;</span> | 
|  | 176  163 | 
|  | 177  164   <span class="k">for</span> <span class="i">$Index</span> <span class="s">(</span><span class="n">0</span> .. <span class="i">$#SequenceFilesList</span><span class="s">)</span> <span class="s">{</span> | 
|  | 178  165     <span class="k">if</span> <span class="s">(</span><span class="i">$SequenceFilesInfo</span>{<span class="w">FileOkay</span>}[<span class="i">$Index</span>]<span class="s">)</span> <span class="s">{</span> | 
|  | 179  166       <span class="i">$FileOkayCount</span>++<span class="sc">;</span> | 
|  | 180  167       <span class="i">$TotalSize</span> += <span class="i">$SequenceFilesInfo</span>{<span class="w">FileSize</span>}[<span class="i">$Index</span>]<span class="sc">;</span> | 
|  | 181  168     <span class="s">}</span> | 
|  | 182  169   <span class="s">}</span> | 
|  | 183  170   <span class="k">if</span> <span class="s">(</span><span class="i">$FileOkayCount</span> > <span class="n">1</span><span class="s">)</span> <span class="s">{</span> | 
|  | 184  171     <span class="k">print</span> <span class="q">"\nTotal size of $FileOkayCount files: "</span><span class="cm">,</span> <span class="i">FormatFileSize</span><span class="s">(</span><span class="i">$TotalSize</span><span class="s">)</span><span class="cm">,</span> <span class="q">"\n"</span><span class="sc">;</span> | 
|  | 185  172   <span class="s">}</span> | 
|  | 186  173 <span class="s">}</span> | 
|  | 187  174 | 
|  | 188  175 | 
|  | 189  176 <span class="c"># Perform frequency analysis of sequence lengths</span> | 
|  | 190 <a name="PerformLengthFrequencyAnalysis-"></a> 177 <span class="k">sub </span><span class="m">PerformLengthFrequencyAnalysis</span> <span class="s">{</span> | 
|  | 191  178   <span class="k">my</span><span class="s">(</span><span class="i">$SequenceDataRef</span><span class="cm">,</span> <span class="i">$SequenceLengthsRef</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span> | 
|  | 192  179   <span class="k">my</span> <span class="s">(</span><span class="i">$ID</span><span class="cm">,</span> <span class="i">$SeqLen</span><span class="cm">,</span> <span class="i">$Sequence</span><span class="cm">,</span> <span class="i">$SequenceLenBin</span><span class="cm">,</span> <span class="i">$LenBin</span><span class="cm">,</span> <span class="i">$SequenceLenCount</span><span class="cm">,</span> <span class="i">@SequenceLengths</span><span class="cm">,</span> <span class="i">%SequenceLenFrequency</span><span class="s">)</span><span class="sc">;</span> | 
|  | 193  180 | 
|  | 194  181   <span class="i">@SequenceLengths</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 195  182   <span class="i">%SequenceLenFrequency</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 196  183   <span class="k">for</span> <span class="i">$ID</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$SequenceDataRef</span>->{<span class="w">IDs</span>}}<span class="s">)</span> <span class="s">{</span> | 
|  | 197  184     <span class="i">$Sequence</span> = <span class="i">$SequenceDataRef</span>->{<span class="w">Sequence</span>}{<span class="i">$ID</span>}<span class="sc">;</span> | 
|  | 198  185     <span class="i">$SeqLen</span> = <span class="i">GetSequenceLength</span><span class="s">(</span><span class="i">$Sequence</span><span class="cm">,</span> <span class="i">$OptionsInfo</span>{<span class="w">IgnoreGaps</span>}<span class="s">)</span><span class="sc">;</span> | 
|  | 199  186     <span class="k">push</span> <span class="i">@SequenceLengths</span><span class="cm">,</span> <span class="i">$SeqLen</span><span class="sc">;</span> | 
|  | 200  187   <span class="s">}</span> | 
|  | 201  188   <span class="k">if</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$OptionsInfo</span>{<span class="w">BinRange</span>}}<span class="s">)</span> <span class="s">{</span> | 
|  | 202  189     <span class="i">%SequenceLenFrequency</span> = <span class="i">Frequency</span><span class="s">(</span>\<span class="i">@SequenceLengths</span><span class="cm">,</span> \<span class="i">@</span>{<span class="i">$OptionsInfo</span>{<span class="w">BinRange</span>}}<span class="s">)</span><span class="sc">;</span> | 
|  | 203  190   <span class="s">}</span> | 
|  | 204  191   <span class="k">else</span> <span class="s">{</span> | 
|  | 205  192     <span class="i">%SequenceLenFrequency</span> = <span class="i">Frequency</span><span class="s">(</span>\<span class="i">@SequenceLengths</span><span class="cm">,</span> <span class="i">$OptionsInfo</span>{<span class="w">NumOfBins</span>}<span class="s">)</span><span class="sc">;</span> | 
|  | 206  193   <span class="s">}</span> | 
|  | 207  194   <span class="k">print</span> <span class="q">"\nDistribution of sequence lengths (LengthBin => Count):\n"</span><span class="sc">;</span> | 
|  | 208  195   <span class="k">for</span> <span class="i">$SequenceLenBin</span> <span class="s">(</span><span class="k">sort</span> <span class="s">{</span> <span class="i">$a</span> <=> <span class="i">$b</span><span class="s">}</span> <span class="k">keys</span> <span class="i">%SequenceLenFrequency</span><span class="s">)</span> <span class="s">{</span> | 
|  | 209  196     <span class="i">$SequenceLenCount</span> = <span class="i">$SequenceLenFrequency</span>{<span class="i">$SequenceLenBin</span>}<span class="sc">;</span> | 
|  | 210  197     <span class="i">$LenBin</span> = <span class="k">sprintf</span><span class="s">(</span><span class="q">"%.1f"</span><span class="cm">,</span> <span class="i">$SequenceLenBin</span><span class="s">)</span> + <span class="n">0</span><span class="sc">;</span> | 
|  | 211  198     <span class="k">print</span> <span class="q">"$LenBin => $SequenceLenCount; "</span><span class="sc">;</span> | 
|  | 212  199   <span class="s">}</span> | 
|  | 213  200   <span class="k">print</span> <span class="q">"\n"</span><span class="sc">;</span> | 
|  | 214  201 <span class="s">}</span> | 
|  | 215  202 | 
|  | 216  203 <span class="c"># Retrieve information about sequence files...</span> | 
|  | 217 <a name="RetrieveSequenceFilesInfo-"></a> 204 <span class="k">sub </span><span class="m">RetrieveSequenceFilesInfo</span> <span class="s">{</span> | 
|  | 218  205   <span class="k">my</span><span class="s">(</span><span class="i">$Index</span><span class="cm">,</span> <span class="i">$SequenceFile</span><span class="cm">,</span> <span class="i">$FileSupported</span><span class="cm">,</span> <span class="i">$FileFormat</span><span class="cm">,</span> <span class="i">$ModifiedTimeString</span><span class="cm">,</span> <span class="i">$ModifiedDateString</span><span class="s">)</span><span class="sc">;</span> | 
|  | 219  206 | 
|  | 220  207   <span class="i">%SequenceFilesInfo</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 221  208   <span class="i">@</span>{<span class="i">$SequenceFilesInfo</span>{<span class="w">FileOkay</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 222  209   <span class="i">@</span>{<span class="i">$SequenceFilesInfo</span>{<span class="w">FileFormat</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 223  210   <span class="i">@</span>{<span class="i">$SequenceFilesInfo</span>{<span class="w">FileSize</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 224  211   <span class="i">@</span>{<span class="i">$SequenceFilesInfo</span>{<span class="w">FileLastModified</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 225  212 | 
|  | 226  213   <span class="j">FILELIST:</span> <span class="k">for</span> <span class="i">$Index</span> <span class="s">(</span><span class="n">0</span> .. <span class="i">$#SequenceFilesList</span><span class="s">)</span> <span class="s">{</span> | 
|  | 227  214     <span class="i">$SequenceFile</span> = <span class="i">$SequenceFilesList</span>[<span class="i">$Index</span>]<span class="sc">;</span> | 
|  | 228  215 | 
|  | 229  216     <span class="k">if</span> <span class="s">(</span>! <span class="k">open</span> <span class="w">SEQUENCEFILE</span><span class="cm">,</span> <span class="q">"$SequenceFile"</span><span class="s">)</span> <span class="s">{</span> | 
|  | 230  217       <span class="k">warn</span> <span class="q">"Warning: Ignoring file $SequenceFile: Couldn't open it: $! \n"</span><span class="sc">;</span> | 
|  | 231  218       <span class="k">next</span> <span class="j">FILELIST</span><span class="sc">;</span> | 
|  | 232  219     <span class="s">}</span> | 
|  | 233  220     <span class="k">close</span> <span class="w">SEQUENCEFILE</span><span class="sc">;</span> | 
|  | 234  221 | 
|  | 235  222     <span class="i">$SequenceFilesInfo</span>{<span class="w">FileOkay</span>}[<span class="i">$Index</span>] = <span class="n">0</span><span class="sc">;</span> | 
|  | 236  223     <span class="i">$SequenceFilesInfo</span>{<span class="w">FileFormat</span>}[<span class="i">$Index</span>] = <span class="q">'NotSupported'</span><span class="sc">;</span> | 
|  | 237  224     <span class="i">$SequenceFilesInfo</span>{<span class="w">FileSize</span>}[<span class="i">$Index</span>] = <span class="n">0</span><span class="sc">;</span> | 
|  | 238  225     <span class="i">$SequenceFilesInfo</span>{<span class="w">FileLastModified</span>}[<span class="i">$Index</span>] = <span class="q">''</span><span class="sc">;</span> | 
|  | 239  226 | 
|  | 240  227     <span class="s">(</span><span class="i">$FileSupported</span><span class="cm">,</span> <span class="i">$FileFormat</span><span class="s">)</span> = <span class="i">IsSupportedSequenceFile</span><span class="s">(</span><span class="i">$SequenceFile</span><span class="s">)</span><span class="sc">;</span> | 
|  | 241  228     <span class="k">if</span> <span class="s">(</span>!<span class="i">$FileSupported</span><span class="s">)</span> <span class="s">{</span> | 
|  | 242  229       <span class="k">warn</span> <span class="q">"Warning: Ignoring file $SequenceFile: Sequence file format is not supported.\n"</span><span class="sc">;</span> | 
|  | 243  230       <span class="k">next</span> <span class="j">FILELIST</span><span class="sc">;</span> | 
|  | 244  231     <span class="s">}</span> | 
|  | 245  232 | 
|  | 246  233     <span class="i">$SequenceFilesInfo</span>{<span class="w">FileOkay</span>}[<span class="i">$Index</span>] = <span class="n">1</span><span class="sc">;</span> | 
|  | 247  234     <span class="i">$SequenceFilesInfo</span>{<span class="w">FileFormat</span>}[<span class="i">$Index</span>] = <span class="i">$FileFormat</span><span class="sc">;</span> | 
|  | 248  235     <span class="i">$SequenceFilesInfo</span>{<span class="w">FileSize</span>}[<span class="i">$Index</span>] = <span class="i">FileSize</span><span class="s">(</span><span class="i">$SequenceFile</span><span class="s">)</span><span class="sc">;</span> | 
|  | 249  236 | 
|  | 250  237     <span class="s">(</span><span class="i">$ModifiedTimeString</span><span class="cm">,</span> <span class="i">$ModifiedDateString</span><span class="s">)</span> = <span class="i">FormattedFileModificationTimeAndDate</span><span class="s">(</span><span class="i">$SequenceFile</span><span class="s">)</span><span class="sc">;</span> | 
|  | 251  238     <span class="i">$SequenceFilesInfo</span>{<span class="w">FileLastModified</span>}[<span class="i">$Index</span>] = <span class="q">"$ModifiedTimeString; $ModifiedDateString"</span><span class="sc">;</span> | 
|  | 252  239   <span class="s">}</span> | 
|  | 253  240 <span class="s">}</span> | 
|  | 254  241 | 
|  | 255  242 <span class="c"># Process option values...</span> | 
|  | 256 <a name="ProcessOptions-"></a> 243 <span class="k">sub </span><span class="m">ProcessOptions</span> <span class="s">{</span> | 
|  | 257  244 | 
|  | 258  245   <span class="i">$OptionsInfo</span>{<span class="w">All</span>} = <span class="k">defined</span> <span class="i">$Options</span>{<span class="w">all</span>} ? <span class="i">$Options</span>{<span class="w">all</span>} <span class="co">:</span> <span class="k">undef</span><span class="sc">;</span> | 
|  | 259  246 | 
|  | 260  247   <span class="i">$OptionsInfo</span>{<span class="w">Count</span>} = <span class="k">defined</span> <span class="i">$Options</span>{<span class="w">count</span>} ? <span class="i">$Options</span>{<span class="w">count</span>} <span class="co">:</span> <span class="k">undef</span><span class="sc">;</span> | 
|  | 261  248   <span class="i">$OptionsInfo</span>{<span class="w">DetailLevel</span>} = <span class="i">$Options</span>{<span class="w">detail</span>}<span class="sc">;</span> | 
|  | 262  249   <span class="i">$OptionsInfo</span>{<span class="w">Frequency</span>} = <span class="k">defined</span> <span class="i">$Options</span>{<span class="w">frequency</span>} ? <span class="i">$Options</span>{<span class="w">frequency</span>} <span class="co">:</span> <span class="k">undef</span><span class="sc">;</span> | 
|  | 263  250   <span class="i">$OptionsInfo</span>{<span class="w">FrequencyBins</span>} = <span class="k">defined</span> <span class="i">$Options</span>{<span class="w">frequencybins</span>} ? <span class="i">$Options</span>{<span class="w">frequencybins</span>} <span class="co">:</span> <span class="k">undef</span><span class="sc">;</span> | 
|  | 264  251   <span class="i">$OptionsInfo</span>{<span class="w">IgnoreGaps</span>} = <span class="k">defined</span> <span class="i">$Options</span>{<span class="w">ignoregaps</span>} ? <span class="i">$Options</span>{<span class="w">ignoregaps</span>} <span class="co">:</span> <span class="k">undef</span><span class="sc">;</span> | 
|  | 265  252   <span class="i">$OptionsInfo</span>{<span class="w">Longest</span>} = <span class="k">defined</span> <span class="i">$Options</span>{<span class="w">longest</span>} ? <span class="i">$Options</span>{<span class="w">longest</span>} <span class="co">:</span> <span class="k">undef</span><span class="sc">;</span> | 
|  | 266  253   <span class="i">$OptionsInfo</span>{<span class="w">Shortest</span>} = <span class="k">defined</span> <span class="i">$Options</span>{<span class="w">shortest</span>} ? <span class="i">$Options</span>{<span class="w">shortest</span>} <span class="co">:</span> <span class="k">undef</span><span class="sc">;</span> | 
|  | 267  254   <span class="i">$OptionsInfo</span>{<span class="w">SequenceLengths</span>} = <span class="k">defined</span> <span class="i">$Options</span>{<span class="w">sequencelengths</span>} ? <span class="i">$Options</span>{<span class="w">sequencelengths</span>} <span class="co">:</span> <span class="k">undef</span><span class="sc">;</span> | 
|  | 268  255 | 
|  | 269  256   <span class="i">$OptionsInfo</span>{<span class="w">FrequencyAnalysis</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">all</span>} || <span class="i">$Options</span>{<span class="w">frequency</span>}<span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span> | 
|  | 270  257   <span class="i">$OptionsInfo</span>{<span class="w">ListLongestSequence</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">all</span>} || <span class="i">$Options</span>{<span class="w">longest</span>}<span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span> | 
|  | 271  258   <span class="i">$OptionsInfo</span>{<span class="w">ListShortestSequence</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">all</span>} || <span class="i">$Options</span>{<span class="w">shortest</span>}<span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span> | 
|  | 272  259   <span class="i">$OptionsInfo</span>{<span class="w">ListSequenceLengths</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">all</span>} || <span class="i">$Options</span>{<span class="w">sequencelengths</span>}<span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span> | 
|  | 273  260   <span class="i">$OptionsInfo</span>{<span class="w">IgnoreGaps</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">ignoregaps</span>} =~ <span class="q">/Yes/i</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span> | 
|  | 274  261 | 
|  | 275  262   <span class="c"># Setup frequency bin values...</span> | 
|  | 276  263   <span class="i">$OptionsInfo</span>{<span class="w">NumOfBins</span>} = <span class="n">4</span><span class="sc">;</span> | 
|  | 277  264   <span class="i">@</span>{<span class="i">$OptionsInfo</span>{<span class="w">BinRange</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 278  265 | 
|  | 279  266   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">frequencybins</span>} =~ <span class="q">/\,/</span><span class="s">)</span> <span class="s">{</span> | 
|  | 280  267     <span class="k">my</span><span class="s">(</span><span class="i">$BinValue</span><span class="cm">,</span> <span class="i">@SpecifiedBinRange</span><span class="s">)</span><span class="sc">;</span> | 
|  | 281  268     <span class="i">@SpecifiedBinRange</span> = <span class="k">split</span> <span class="q">/\,/</span><span class="cm">,</span>  <span class="i">$Options</span>{<span class="w">frequencybins</span>}<span class="sc">;</span> | 
|  | 282  269     <span class="k">if</span> <span class="s">(</span><span class="i">@SpecifiedBinRange</span> < <span class="n">2</span><span class="s">)</span> <span class="s">{</span> | 
|  | 283  270       <span class="k">die</span> <span class="q">"Error: The value specified, $Options{frequencybins}, for option \"--frequencybins\" is not valid: Must contain at least two values. \n"</span><span class="sc">;</span> | 
|  | 284  271     <span class="s">}</span> | 
|  | 285  272     <span class="k">for</span> <span class="i">$BinValue</span> <span class="s">(</span><span class="i">@SpecifiedBinRange</span><span class="s">)</span> <span class="s">{</span> | 
|  | 286  273       <span class="k">if</span> <span class="s">(</span>!<span class="i">IsNumerical</span><span class="s">(</span><span class="i">$BinValue</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 287  274         <span class="k">die</span> <span class="q">"Error: The value specified, $Options{frequencybins}, for option \"--frequencybins\" is not valid: Contains non numeric values. \n"</span><span class="sc">;</span> | 
|  | 288  275       <span class="s">}</span> | 
|  | 289  276     <span class="s">}</span> | 
|  | 290  277     <span class="k">my</span><span class="s">(</span><span class="i">$Index1</span><span class="cm">,</span> <span class="i">$Index2</span><span class="s">)</span><span class="sc">;</span> | 
|  | 291  278     <span class="k">for</span> <span class="i">$Index1</span> <span class="s">(</span><span class="n">0</span> .. <span class="i">$#SpecifiedBinRange</span><span class="s">)</span> <span class="s">{</span> | 
|  | 292  279       <span class="k">for</span> <span class="i">$Index2</span> <span class="s">(</span><span class="s">(</span><span class="i">$Index1</span> + <span class="n">1</span><span class="s">)</span> .. <span class="i">$#SpecifiedBinRange</span><span class="s">)</span> <span class="s">{</span> | 
|  | 293  280         <span class="k">if</span> <span class="s">(</span><span class="i">$SpecifiedBinRange</span>[<span class="i">$Index1</span>] >= <span class="i">$SpecifiedBinRange</span>[<span class="i">$Index2</span>]<span class="s">)</span> <span class="s">{</span> | 
|  | 294  281           <span class="k">die</span> <span class="q">"Error: The value specified, $Options{frequencybins}, for option \"--frequencybins\" is not valid: Must contain values in ascending order. \n"</span><span class="sc">;</span> | 
|  | 295  282         <span class="s">}</span> | 
|  | 296  283       <span class="s">}</span> | 
|  | 297  284     <span class="s">}</span> | 
|  | 298  285     <span class="k">push</span> <span class="i">@</span>{<span class="i">$OptionsInfo</span>{<span class="w">BinRange</span>}}<span class="cm">,</span> <span class="i">@SpecifiedBinRange</span><span class="sc">;</span> | 
|  | 299  286   <span class="s">}</span> | 
|  | 300  287   <span class="k">else</span> <span class="s">{</span> | 
|  | 301  288     <span class="i">$OptionsInfo</span>{<span class="w">NumOfBins</span>} = <span class="i">$Options</span>{<span class="w">frequencybins</span>}<span class="sc">;</span> | 
|  | 302  289     <span class="k">if</span> <span class="s">(</span>!<span class="i">IsPositiveInteger</span><span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">NumOfBins</span>}<span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 303  290       <span class="k">die</span> <span class="q">"Error: The value specified, $Options{frequencybins}, for option \"--frequencybins\" is not valid. Allowed values: positive integer or \"number,number,[number]...\". \n"</span><span class="sc">;</span> | 
|  | 304  291     <span class="s">}</span> | 
|  | 305  292   <span class="s">}</span> | 
|  | 306  293 <span class="s">}</span> | 
|  | 307  294 | 
|  | 308  295 <span class="c"># Setup script usage  and retrieve command line arguments specified using various options...</span> | 
|  | 309 <a name="SetupScriptUsage-"></a> 296 <span class="k">sub </span><span class="m">SetupScriptUsage</span> <span class="s">{</span> | 
|  | 310  297 | 
|  | 311  298   <span class="c"># Retrieve all the options...</span> | 
|  | 312  299   <span class="i">%Options</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span> | 
|  | 313  300   <span class="i">$Options</span>{<span class="w">detail</span>} = <span class="n">1</span><span class="sc">;</span> | 
|  | 314  301   <span class="i">$Options</span>{<span class="w">ignoregaps</span>} = <span class="q">'no'</span><span class="sc">;</span> | 
|  | 315  302   <span class="i">$Options</span>{<span class="w">frequencybins</span>} = <span class="n">10</span><span class="sc">;</span> | 
|  | 316  303 | 
|  | 317  304   <span class="k">if</span> <span class="s">(</span>!<span class="i">GetOptions</span><span class="s">(</span>\<span class="i">%Options</span><span class="cm">,</span> <span class="q">"all|a"</span><span class="cm">,</span> <span class="q">"count|c"</span><span class="cm">,</span> <span class="q">"detail|d=i"</span><span class="cm">,</span> <span class="q">"frequency|f"</span><span class="cm">,</span> <span class="q">"frequencybins=s"</span><span class="cm">,</span> <span class="q">"help|h"</span><span class="cm">,</span> <span class="q">"ignoregaps|i=s"</span><span class="cm">,</span> <span class="q">"longest|l"</span><span class="cm">,</span> <span class="q">"shortest|s"</span><span class="cm">,</span> <span class="q">"sequencelengths"</span><span class="cm">,</span> <span class="q">"workingdir|w=s"</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 318  305     <span class="k">die</span> <span class="q">"\nTo get a list of valid options and their values, use \"$ScriptName -h\" or\n\"perl -S $ScriptName -h\" command and try again...\n"</span><span class="sc">;</span> | 
|  | 319  306   <span class="s">}</span> | 
|  | 320  307   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">workingdir</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 321  308     <span class="k">if</span> <span class="s">(</span>! <span class="k">-d</span> <span class="i">$Options</span>{<span class="w">workingdir</span>}<span class="s">)</span> <span class="s">{</span> | 
|  | 322  309       <span class="k">die</span> <span class="q">"Error: The value specified, $Options{workingdir}, for option \"-w --workingdir\" is not a directory name.\n"</span><span class="sc">;</span> | 
|  | 323  310     <span class="s">}</span> | 
|  | 324  311     <span class="k">chdir</span> <span class="i">$Options</span>{<span class="w">workingdir</span>} <span class="k">or</span> <span class="k">die</span> <span class="q">"Error: Couldn't chdir $Options{workingdir}: $! \n"</span><span class="sc">;</span> | 
|  | 325  312   <span class="s">}</span> | 
|  | 326  313   <span class="k">if</span> <span class="s">(</span>!<span class="i">IsPositiveInteger</span><span class="s">(</span><span class="i">$Options</span>{<span class="w">detail</span>}<span class="s">)</span><span class="s">)</span> <span class="s">{</span> | 
|  | 327  314     <span class="k">die</span> <span class="q">"Error: The value specified, $Options{detail}, for option \"-d --detail\" is not valid. Allowed values: > 0\n"</span><span class="sc">;</span> | 
|  | 328  315   <span class="s">}</span> | 
|  | 329  316   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">ignoregaps</span>} !~ <span class="q">/^(yes|no)$/i</span><span class="s">)</span> <span class="s">{</span> | 
|  | 330  317     <span class="k">die</span> <span class="q">"Error: The value specified, $Options{ignoregaps}, for option \"-i --IgnoreGaps\" is not valid. Allowed values: yes or no\n"</span><span class="sc">;</span> | 
|  | 331  318   <span class="s">}</span> | 
|  | 332  319 <span class="s">}</span> | 
|  | 333  320 | 
|  | 334 <a name="EOF-"></a></pre> | 
|  | 335 <p> </p> | 
|  | 336 <br /> | 
|  | 337 <center> | 
|  | 338 <img src="../../../images/h2o2.png"> | 
|  | 339 </center> | 
|  | 340 </body> | 
|  | 341 </html> |