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   1 #!/usr/bin/perl -w
   2 <span class="c">#</span>
   3 <span class="c"># $RCSfile: ModifyPDBFiles.pl,v $</span>
   4 <span class="c"># $Date: 2015/02/28 20:46:20 $</span>
   5 <span class="c"># $Revision: 1.25 $</span>
   6 <span class="c">#</span>
   7 <span class="c"># Author: Manish Sud &lt;msud@san.rr.com&gt;</span>
   8 <span class="c">#</span>
   9 <span class="c"># Copyright (C) 2015 Manish Sud. All rights reserved.</span>
  10 <span class="c">#</span>
  11 <span class="c"># This file is part of MayaChemTools.</span>
  12 <span class="c">#</span>
  13 <span class="c"># MayaChemTools is free software; you can redistribute it and/or modify it under</span>
  14 <span class="c"># the terms of the GNU Lesser General Public License as published by the Free</span>
  15 <span class="c"># Software Foundation; either version 3 of the License, or (at your option) any</span>
  16 <span class="c"># later version.</span>
  17 <span class="c">#</span>
  18 <span class="c"># MayaChemTools is distributed in the hope that it will be useful, but without</span>
  19 <span class="c"># any warranty; without even the implied warranty of merchantability of fitness</span>
  20 <span class="c"># for a particular purpose.  See the GNU Lesser General Public License for more</span>
  21 <span class="c"># details.</span>
  22 <span class="c">#</span>
  23 <span class="c"># You should have received a copy of the GNU Lesser General Public License</span>
  24 <span class="c"># along with MayaChemTools; if not, see &lt;http://www.gnu.org/licenses/&gt; or</span>
  25 <span class="c"># write to the Free Software Foundation Inc., 59 Temple Place, Suite 330,</span>
  26 <span class="c"># Boston, MA, 02111-1307, USA.</span>
  27 <span class="c">#</span>
  28 
  29 <span class="k">use</span> <span class="w">strict</span><span class="sc">;</span>
  30 <span class="k">use</span> <span class="w">FindBin</span><span class="sc">;</span> <span class="k">use</span> <span class="w">lib</span> <span class="q">&quot;$FindBin::Bin/../lib&quot;</span><span class="sc">;</span>
  31 <span class="k">use</span> <span class="w">Getopt::Long</span><span class="sc">;</span>
  32 <span class="k">use</span> <span class="w">File::Basename</span><span class="sc">;</span>
  33 <span class="k">use</span> <span class="w">Text::ParseWords</span><span class="sc">;</span>
  34 <span class="k">use</span> <span class="w">Benchmark</span><span class="sc">;</span>
  35 <span class="k">use</span> <span class="w">FileUtil</span><span class="sc">;</span>
  36 <span class="k">use</span> <span class="w">TextUtil</span><span class="sc">;</span>
  37 <span class="k">use</span> <span class="w">PDBFileUtil</span><span class="sc">;</span>
  38 
  39 <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>
  40 
  41 <span class="c"># Autoflush STDOUT</span>
  42 <span class="i">$|</span> = <span class="n">1</span><span class="sc">;</span>
  43 
  44 <span class="c"># Starting message...</span>
  45 <span class="i">$ScriptName</span> = <span class="i">basename</span><span class="s">(</span><span class="i">$0</span><span class="s">)</span><span class="sc">;</span>
  46 <span class="k">print</span> <span class="q">&quot;\n$ScriptName: Starting...\n\n&quot;</span><span class="sc">;</span>
  47 <span class="i">$StartTime</span> = <span class="w">new</span> <span class="w">Benchmark</span><span class="sc">;</span>
  48 
  49 <span class="c"># Get the options and setup script...</span>
  50 <span class="i">SetupScriptUsage</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span>
  51 <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">help</span>} || <span class="i">@ARGV</span> &lt; <span class="n">1</span><span class="s">)</span> <span class="s">{</span>
  52   <span class="k">die</span> <span class="i">GetUsageFromPod</span><span class="s">(</span><span class="q">&quot;$FindBin::Bin/$ScriptName&quot;</span><span class="s">)</span><span class="sc">;</span>
  53 <span class="s">}</span>
  54 
  55 <span class="k">my</span><span class="s">(</span><span class="i">@PDBFilesList</span><span class="s">)</span><span class="sc">;</span>
  56 <span class="i">@PDBFilesList</span> = <span class="i">ExpandFileNames</span><span class="s">(</span>\<span class="i">@ARGV</span><span class="cm">,</span> <span class="q">&quot;pdb&quot;</span><span class="s">)</span><span class="sc">;</span>
  57 
  58 <span class="c"># Process options...</span>
  59 <span class="k">print</span> <span class="q">&quot;Processing options...\n&quot;</span><span class="sc">;</span>
  60 <span class="k">my</span><span class="s">(</span><span class="i">%OptionsInfo</span><span class="s">)</span><span class="sc">;</span>
  61 <span class="i">ProcessOptions</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span>
  62 
  63 <span class="c"># Setup information about input files...</span>
  64 <span class="k">print</span> <span class="q">&quot;Checking input PDB file(s)...\n&quot;</span><span class="sc">;</span>
  65 <span class="k">my</span><span class="s">(</span><span class="i">%PDBFilesInfo</span><span class="s">)</span><span class="sc">;</span>
  66 <span class="i">RetrievePDBFilesInfo</span><span class="s">(</span><span class="s">)</span><span class="sc">;</span>
  67 
  68 <span class="c"># Process input files..</span>
  69 <span class="k">my</span><span class="s">(</span><span class="i">$FileIndex</span><span class="s">)</span><span class="sc">;</span>
  70 <span class="k">if</span> <span class="s">(</span><span class="i">@PDBFilesList</span> &gt; <span class="n">1</span><span class="s">)</span> <span class="s">{</span>
  71   <span class="k">print</span> <span class="q">&quot;\nProcessing PDB files...\n&quot;</span><span class="sc">;</span>
  72 <span class="s">}</span>
  73 <span class="k">for</span> <span class="i">$FileIndex</span> <span class="s">(</span><span class="n">0</span> .. <span class="i">$#PDBFilesList</span><span class="s">)</span> <span class="s">{</span>
  74   <span class="k">if</span> <span class="s">(</span><span class="i">$PDBFilesInfo</span>{<span class="w">FileOkay</span>}[<span class="i">$FileIndex</span>]<span class="s">)</span> <span class="s">{</span>
  75     <span class="k">print</span> <span class="q">&quot;\nProcessing file $PDBFilesList[$FileIndex]...\n&quot;</span><span class="sc">;</span>
  76     <span class="i">ModifyPDBFiles</span><span class="s">(</span><span class="i">$FileIndex</span><span class="s">)</span><span class="sc">;</span>
  77   <span class="s">}</span>
  78 <span class="s">}</span>
  79 <span class="k">print</span> <span class="q">&quot;\n$ScriptName:Done...\n\n&quot;</span><span class="sc">;</span>
  80 
  81 <span class="i">$EndTime</span> = <span class="w">new</span> <span class="w">Benchmark</span><span class="sc">;</span>
  82 <span class="i">$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>
  83 <span class="k">print</span> <span class="q">&quot;Total time: &quot;</span><span class="cm">,</span> <span class="i">timestr</span><span class="s">(</span><span class="i">$TotalTime</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
  84 
  85 <span class="c">###############################################################################</span>
  86 
  87 <span class="c"># Modify appropriate information...</span>
<a name="ModifyPDBFiles-"></a>  88 <span class="k">sub </span><span class="m">ModifyPDBFiles</span> <span class="s">{</span>
  89   <span class="k">my</span><span class="s">(</span><span class="i">$FileIndex</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
  90   <span class="k">my</span><span class="s">(</span><span class="i">$PDBFile</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
  91 
  92   <span class="c"># Get PDB data...</span>
  93   <span class="i">$PDBFile</span> = <span class="i">$PDBFilesList</span>[<span class="i">$FileIndex</span>]<span class="sc">;</span>
  94   <span class="i">$PDBRecordLinesRef</span> = <span class="i">ReadPDBFile</span><span class="s">(</span><span class="i">$PDBFile</span><span class="s">)</span><span class="sc">;</span>
  95 
  96   <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">Mode</span>} =~ <span class="q">/^RenumberAtoms$/i</span><span class="s">)</span> <span class="s">{</span>
  97     <span class="i">RenumberAtoms</span><span class="s">(</span><span class="i">$FileIndex</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
  98   <span class="s">}</span>
  99   <span class="k">elsif</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">Mode</span>} =~ <span class="q">/^RenumberResidues$/i</span><span class="s">)</span> <span class="s">{</span>
 100     <span class="i">RenumberResidues</span><span class="s">(</span><span class="i">$FileIndex</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
 101   <span class="s">}</span>
 102   <span class="k">elsif</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">Mode</span>} =~ <span class="q">/^RenumberWaters$/i</span><span class="s">)</span> <span class="s">{</span>
 103     <span class="i">RenumberWaters</span><span class="s">(</span><span class="i">$FileIndex</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
 104   <span class="s">}</span>
 105   <span class="k">elsif</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">Mode</span>} =~ <span class="q">/^RenameChainIDs$/i</span><span class="s">)</span> <span class="s">{</span>
 106     <span class="i">RenameChainsIDs</span><span class="s">(</span><span class="i">$FileIndex</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
 107   <span class="s">}</span>
 108 <span class="s">}</span>
 109 
 110 <span class="c"># Renumber atom and hetro atom numbers...</span>
<a name="RenumberAtoms-"></a> 111 <span class="k">sub </span><span class="m">RenumberAtoms</span> <span class="s">{</span>
 112   <span class="k">my</span><span class="s">(</span><span class="i">$FileIndex</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
 113   <span class="k">my</span><span class="s">(</span><span class="i">$PDBFileName</span><span class="cm">,</span>  <span class="i">$RecordLine</span><span class="cm">,</span> <span class="i">$ConectRecordLinesRef</span><span class="cm">,</span> <span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="cm">,</span> <span class="i">$NewAtomNumber</span><span class="cm">,</span> <span class="i">$RecordType</span><span class="cm">,</span> <span class="i">%OldToNewAtomNumbersMap</span><span class="s">)</span><span class="sc">;</span>
 114 
 115   <span class="i">$PDBFileName</span> = <span class="i">$PDBFilesInfo</span>{<span class="w">OutFileNames</span>}[<span class="i">$FileIndex</span>][<span class="n">0</span>]<span class="sc">;</span>
 116   <span class="k">print</span> <span class="q">&quot;Generating PDBFileName file $PDBFileName...\n&quot;</span><span class="sc">;</span>
 117   <span class="k">open</span> <span class="w">OUTFILE</span><span class="cm">,</span> <span class="q">&quot;&gt;$PDBFileName&quot;</span> <span class="k">or</span> <span class="k">die</span> <span class="q">&quot;Error: Can&#39;t open $PDBFileName: $! \n&quot;</span><span class="sc">;</span>
 118 
 119   <span class="c"># Write out header and other older recors...</span>
 120   <span class="i">WriteHeaderAndOlderRecords</span><span class="s">(</span>\<span class="i">*OUTFILE</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
 121 
 122   <span class="c"># Write out all ATOM records along with TER and model records to indicate</span>
 123   <span class="c"># chains and multiple models..</span>
 124   <span class="i">%OldToNewAtomNumbersMap</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 125   <span class="i">$NewAtomNumber</span> = <span class="i">$OptionsInfo</span>{<span class="w">StartingAtomNumber</span>}<span class="sc">;</span>
 126   <span class="k">for</span> <span class="i">$RecordLine</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$PDBRecordLinesRef</span>}<span class="s">)</span> <span class="s">{</span>
 127     <span class="k">if</span> <span class="s">(</span><span class="i">IsAtomRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span> || <span class="i">IsHetatmRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 128       <span class="i">$RecordType</span> = <span class="i">GetPDBRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 129 
 130       <span class="s">(</span><span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="s">)</span> = <span class="i">ParseAtomOrHetatmRecordLine</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 131 
 132       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateAtomOrHetatmRecordLine</span><span class="s">(</span><span class="i">$RecordType</span><span class="cm">,</span> <span class="i">$NewAtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 133 
 134       <span class="i">$OldToNewAtomNumbersMap</span>{<span class="i">$AtomNumber</span>} = <span class="i">$NewAtomNumber</span><span class="sc">;</span>
 135       <span class="i">$NewAtomNumber</span>++<span class="sc">;</span>
 136     <span class="s">}</span>
 137     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsTerRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 138       <span class="i">$NewAtomNumber</span>++<span class="sc">;</span>
 139       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateTerRecordLine</span><span class="s">(</span><span class="i">$NewAtomNumber</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 140     <span class="s">}</span>
 141     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsModelRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 142       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 143     <span class="s">}</span>
 144     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsEndmdlRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 145       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 146       <span class="c"># Restart numbering...</span>
 147       <span class="i">$NewAtomNumber</span> = <span class="i">$OptionsInfo</span>{<span class="w">StartingAtomNumber</span>}<span class="sc">;</span>
 148     <span class="s">}</span>
 149   <span class="s">}</span>
 150 
 151   <span class="c"># Write out modified CONECT records...</span>
 152   <span class="k">my</span><span class="s">(</span><span class="i">$ModifiedConectAtomNum</span><span class="cm">,</span> <span class="i">$ConectAtomNum</span><span class="cm">,</span> <span class="i">@ConectAtomNums</span><span class="cm">,</span> <span class="i">@ModifiedConectAtomNums</span><span class="s">)</span><span class="sc">;</span>
 153   <span class="j">LINE:</span> <span class="k">for</span> <span class="i">$RecordLine</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$PDBRecordLinesRef</span>}<span class="s">)</span> <span class="s">{</span>
 154     <span class="k">if</span> <span class="s">(</span>!<span class="i">IsConectRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 155       <span class="k">next</span> <span class="j">LINE</span><span class="sc">;</span>
 156     <span class="s">}</span>
 157     <span class="i">@ConectAtomNums</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 158     <span class="i">@ModifiedConectAtomNums</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 159     <span class="k">push</span> <span class="i">@ConectAtomNums</span><span class="cm">,</span> <span class="i">ParseConectRecordLine</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 160     <span class="j">ATOMNUMBER:</span> <span class="k">for</span> <span class="i">$ConectAtomNum</span> <span class="s">(</span><span class="i">@ConectAtomNums</span><span class="s">)</span> <span class="s">{</span>
 161       <span class="i">$ModifiedConectAtomNum</span> = <span class="i">$ConectAtomNum</span><span class="sc">;</span>
 162       <span class="k">if</span> <span class="s">(</span><span class="k">defined</span><span class="s">(</span><span class="i">$ConectAtomNum</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 163         <span class="i">$AtomNumber</span> = <span class="i">$ConectAtomNum</span><span class="sc">;</span>
 164         <span class="k">if</span> <span class="s">(</span><span class="i">$AtomNumber</span><span class="s">)</span> <span class="s">{</span>
 165           <span class="k">if</span> <span class="s">(</span><span class="k">exists</span> <span class="i">$OldToNewAtomNumbersMap</span>{<span class="i">$AtomNumber</span>}<span class="s">)</span> <span class="s">{</span>
 166             <span class="i">$ModifiedConectAtomNum</span> = <span class="i">$OldToNewAtomNumbersMap</span>{<span class="i">$AtomNumber</span>}<span class="sc">;</span>
 167           <span class="s">}</span>
 168         <span class="s">}</span>
 169       <span class="s">}</span>
 170       <span class="k">push</span> <span class="i">@ModifiedConectAtomNums</span><span class="cm">,</span> <span class="i">$ModifiedConectAtomNum</span><span class="sc">;</span>
 171     <span class="s">}</span>
 172     <span class="c"># Write out the record...</span>
 173     <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateConectRecordLine</span><span class="s">(</span><span class="i">@ModifiedConectAtomNums</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 174   <span class="s">}</span>
 175 
 176   <span class="c"># Write out END record...</span>
 177   <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateEndRecordLine</span><span class="s">(</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 178 
 179   <span class="k">close</span> <span class="w">OUTFILE</span><span class="sc">;</span>
 180 <span class="s">}</span>
 181 
 182 <span class="c"># Renumber residues...</span>
<a name="RenumberResidues-"></a> 183 <span class="k">sub </span><span class="m">RenumberResidues</span> <span class="s">{</span>
 184   <span class="k">my</span><span class="s">(</span><span class="i">$FileIndex</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
 185   <span class="k">my</span><span class="s">(</span><span class="i">$PDBFileName</span><span class="cm">,</span>  <span class="i">$RecordLine</span><span class="cm">,</span> <span class="i">$ConectRecordLinesRef</span><span class="cm">,</span> <span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="cm">,</span> <span class="i">$NewResidueNumber</span><span class="cm">,</span> <span class="i">$NewHetatmResidueNumber</span><span class="cm">,</span> <span class="i">$TERCount</span><span class="cm">,</span> <span class="i">$TotalTERCount</span><span class="cm">,</span> <span class="i">$PreviousResidueNumber</span><span class="cm">,</span> <span class="i">$PreviousHetatmResidueNumber</span><span class="cm">,</span> <span class="i">$RecordType</span><span class="s">)</span><span class="sc">;</span>
 186 
 187   <span class="i">$PDBFileName</span> = <span class="i">$PDBFilesInfo</span>{<span class="w">OutFileNames</span>}[<span class="i">$FileIndex</span>][<span class="n">0</span>]<span class="sc">;</span>
 188   <span class="k">print</span> <span class="q">&quot;Generating PDBFileName file $PDBFileName...\n&quot;</span><span class="sc">;</span>
 189   <span class="k">open</span> <span class="w">OUTFILE</span><span class="cm">,</span> <span class="q">&quot;&gt;$PDBFileName&quot;</span> <span class="k">or</span> <span class="k">die</span> <span class="q">&quot;Error: Can&#39;t open $PDBFileName: $! \n&quot;</span><span class="sc">;</span>
 190 
 191   <span class="c"># Write out header and other older recors...</span>
 192   <span class="i">WriteHeaderAndOlderRecords</span><span class="s">(</span>\<span class="i">*OUTFILE</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
 193 
 194   <span class="c"># Do a quick count of all TER records...</span>
 195   <span class="i">$TotalTERCount</span> = <span class="n">0</span><span class="sc">;</span>
 196   <span class="k">for</span> <span class="i">$RecordLine</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$PDBRecordLinesRef</span>}<span class="s">)</span> <span class="s">{</span>
 197     <span class="k">if</span> <span class="s">(</span><span class="i">IsTerRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 198       <span class="i">$TotalTERCount</span>++<span class="sc">;</span>
 199     <span class="s">}</span>
 200   <span class="s">}</span>
 201 
 202   <span class="c"># Write out all ATOM records along with TER and model records to indicate</span>
 203   <span class="c"># chains and multiple models..</span>
 204   <span class="i">$NewResidueNumber</span> = <span class="i">$OptionsInfo</span>{<span class="w">StartingResidueNumber</span>}<span class="sc">;</span>
 205   <span class="i">$NewHetatmResidueNumber</span> = <span class="i">$OptionsInfo</span>{<span class="w">StartingHetatmResidueNumber</span>}<span class="sc">;</span>
 206 
 207   <span class="i">$TERCount</span> = <span class="n">0</span><span class="sc">;</span>
 208   <span class="i">$PreviousResidueNumber</span> = <span class="n">0</span><span class="sc">;</span>
 209   <span class="i">$PreviousHetatmResidueNumber</span> = <span class="n">0</span><span class="sc">;</span>
 210 
 211   <span class="k">for</span> <span class="i">$RecordLine</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$PDBRecordLinesRef</span>}<span class="s">)</span> <span class="s">{</span>
 212     <span class="k">if</span> <span class="s">(</span><span class="i">IsAtomRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span> || <span class="s">(</span><span class="i">IsHetatmRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span> &amp;&amp; <span class="s">(</span><span class="i">$TERCount</span> &lt; <span class="i">$TotalTERCount</span> || <span class="i">$OptionsInfo</span>{<span class="w">HetatmResidueNumberMode</span>} =~ <span class="q">/^Automatic$/i</span><span class="s">)</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 213       <span class="i">$RecordType</span> = <span class="i">GetPDBRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 214       <span class="s">(</span><span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="s">)</span> = <span class="i">ParseAtomOrHetatmRecordLine</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 215 
 216       <span class="k">if</span> <span class="s">(</span><span class="i">$PreviousResidueNumber</span> &amp;&amp; <span class="i">$PreviousResidueNumber</span> != <span class="i">$ResidueNumber</span><span class="s">)</span> <span class="s">{</span>
 217         <span class="i">$PreviousResidueNumber</span> = <span class="i">$ResidueNumber</span><span class="sc">;</span>
 218         <span class="i">$NewResidueNumber</span>++<span class="sc">;</span>
 219       <span class="s">}</span>
 220       <span class="k">else</span> <span class="s">{</span>
 221         <span class="c"># First residue in a chain...</span>
 222         <span class="i">$PreviousResidueNumber</span> = <span class="i">$ResidueNumber</span><span class="sc">;</span>
 223       <span class="s">}</span>
 224       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateAtomOrHetatmRecordLine</span><span class="s">(</span><span class="i">$RecordType</span><span class="cm">,</span> <span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$NewResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 225 
 226     <span class="s">}</span>
 227     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsHetatmRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 228       <span class="s">(</span><span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="s">)</span> = <span class="i">ParseHetatmRecordLine</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 229 
 230       <span class="c"># User HETATM residue numbers...</span>
 231       <span class="k">if</span> <span class="s">(</span><span class="i">$PreviousHetatmResidueNumber</span> &amp;&amp; <span class="i">$PreviousHetatmResidueNumber</span> != <span class="i">$ResidueNumber</span><span class="s">)</span> <span class="s">{</span>
 232         <span class="i">$PreviousHetatmResidueNumber</span> = <span class="i">$ResidueNumber</span><span class="sc">;</span>
 233         <span class="i">$NewHetatmResidueNumber</span>++<span class="sc">;</span>
 234       <span class="s">}</span>
 235       <span class="k">else</span> <span class="s">{</span>
 236         <span class="c"># First HETATM residue outside a chain...</span>
 237         <span class="i">$PreviousHetatmResidueNumber</span> = <span class="i">$ResidueNumber</span><span class="sc">;</span>
 238       <span class="s">}</span>
 239 
 240       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateHetatmRecordLine</span><span class="s">(</span><span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$NewHetatmResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 241     <span class="s">}</span>
 242     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsTerRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 243       <span class="i">$TERCount</span>++<span class="sc">;</span>
 244       <span class="i">$AtomNumber</span>++<span class="sc">;</span>
 245       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateTerRecordLine</span><span class="s">(</span><span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$NewResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 246       <span class="c"># For per chain numbering, start over again...</span>
 247       <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">ResidueNumberMode</span>} =~ <span class="q">/^PerChain$/i</span><span class="s">)</span> <span class="s">{</span>
 248         <span class="k">if</span> <span class="s">(</span><span class="i">$TERCount</span> &lt; <span class="i">$TotalTERCount</span> <span class="s">)</span> <span class="s">{</span>
 249           <span class="i">$NewResidueNumber</span> = <span class="i">$OptionsInfo</span>{<span class="w">StartingResidueNumber</span>}<span class="sc">;</span>
 250         <span class="s">}</span>
 251         <span class="i">$PreviousResidueNumber</span> = <span class="n">0</span><span class="sc">;</span>
 252       <span class="s">}</span>
 253     <span class="s">}</span>
 254     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsModelRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 255       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 256     <span class="s">}</span>
 257     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsEndmdlRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 258       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 259     <span class="s">}</span>
 260   <span class="s">}</span>
 261 
 262   <span class="c"># Write out CONECT records...</span>
 263   <span class="k">for</span> <span class="i">$RecordLine</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$PDBRecordLinesRef</span>}<span class="s">)</span> <span class="s">{</span>
 264     <span class="k">if</span> <span class="s">(</span><span class="i">IsConectRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 265       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 266     <span class="s">}</span>
 267   <span class="s">}</span>
 268 
 269   <span class="c"># Write out END record...</span>
 270   <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateEndRecordLine</span><span class="s">(</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 271 
 272   <span class="k">close</span> <span class="w">OUTFILE</span><span class="sc">;</span>
 273 <span class="s">}</span>
 274 
 275 <span class="c"># Renumber water residues...</span>
<a name="RenumberWaters-"></a> 276 <span class="k">sub </span><span class="m">RenumberWaters</span> <span class="s">{</span>
 277   <span class="k">my</span><span class="s">(</span><span class="i">$FileIndex</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
 278   <span class="k">my</span><span class="s">(</span><span class="i">$PDBFileName</span><span class="cm">,</span>  <span class="i">$RecordLine</span><span class="cm">,</span> <span class="i">$ConectRecordLinesRef</span><span class="cm">,</span> <span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="cm">,</span> <span class="i">$NewResidueNumber</span><span class="cm">,</span> <span class="i">$RecordType</span><span class="s">)</span><span class="sc">;</span>
 279 
 280   <span class="i">$PDBFileName</span> = <span class="i">$PDBFilesInfo</span>{<span class="w">OutFileNames</span>}[<span class="i">$FileIndex</span>][<span class="n">0</span>]<span class="sc">;</span>
 281   <span class="k">print</span> <span class="q">&quot;Generating PDBFileName file $PDBFileName...\n&quot;</span><span class="sc">;</span>
 282   <span class="k">open</span> <span class="w">OUTFILE</span><span class="cm">,</span> <span class="q">&quot;&gt;$PDBFileName&quot;</span> <span class="k">or</span> <span class="k">die</span> <span class="q">&quot;Error: Can&#39;t open $PDBFileName: $! \n&quot;</span><span class="sc">;</span>
 283 
 284   <span class="c"># Write out header and other older recors...</span>
 285   <span class="i">WriteHeaderAndOlderRecords</span><span class="s">(</span>\<span class="i">*OUTFILE</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
 286 
 287   <span class="c"># Write out all ATOM records along with TER and model records to indicate</span>
 288   <span class="c"># chains and multiple models..</span>
 289   <span class="i">$NewResidueNumber</span> = <span class="i">$OptionsInfo</span>{<span class="w">StartingWaterResidueNumber</span>}<span class="sc">;</span>
 290   <span class="k">for</span> <span class="i">$RecordLine</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$PDBRecordLinesRef</span>}<span class="s">)</span> <span class="s">{</span>
 291     <span class="k">if</span> <span class="s">(</span><span class="i">IsAtomRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span> || <span class="i">IsHetatmRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 292       <span class="i">$RecordType</span> = <span class="i">GetPDBRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 293 
 294       <span class="s">(</span><span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="s">)</span> = <span class="i">ParseAtomOrHetatmRecordLine</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 295 
 296       <span class="k">if</span> <span class="s">(</span><span class="k">exists</span> <span class="i">$OptionsInfo</span>{<span class="w">SpecifiedWaterResiduesMap</span>}{<span class="i">$ResidueName</span>}<span class="s">)</span> <span class="s">{</span>
 297         <span class="i">$ResidueNumber</span> = <span class="i">$NewResidueNumber</span><span class="sc">;</span>
 298         <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateAtomOrHetatmRecordLine</span><span class="s">(</span><span class="i">$RecordType</span><span class="cm">,</span> <span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 299         <span class="i">$NewResidueNumber</span>++<span class="sc">;</span>
 300       <span class="s">}</span>
 301       <span class="k">else</span> <span class="s">{</span>
 302         <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 303       <span class="s">}</span>
 304     <span class="s">}</span>
 305     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsTerRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 306       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 307     <span class="s">}</span>
 308     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsModelRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 309       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 310     <span class="s">}</span>
 311     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsEndmdlRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 312       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 313     <span class="s">}</span>
 314   <span class="s">}</span>
 315 
 316   <span class="c"># Write out CONECT records...</span>
 317   <span class="k">for</span> <span class="i">$RecordLine</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$PDBRecordLinesRef</span>}<span class="s">)</span> <span class="s">{</span>
 318     <span class="k">if</span> <span class="s">(</span><span class="i">IsConectRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 319       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 320     <span class="s">}</span>
 321   <span class="s">}</span>
 322 
 323   <span class="c"># Write out END record...</span>
 324   <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateEndRecordLine</span><span class="s">(</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 325 
 326   <span class="k">close</span> <span class="w">OUTFILE</span><span class="sc">;</span>
 327 <span class="s">}</span>
 328 
 329 <span class="c"># Rename chain IDs...</span>
<a name="RenameChainsIDs-"></a> 330 <span class="k">sub </span><span class="m">RenameChainsIDs</span> <span class="s">{</span>
 331   <span class="k">my</span><span class="s">(</span><span class="i">$FileIndex</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
 332   <span class="k">my</span><span class="s">(</span><span class="i">$PDBFileName</span><span class="cm">,</span>  <span class="i">$RecordLine</span><span class="cm">,</span> <span class="i">$ConectRecordLinesRef</span><span class="cm">,</span> <span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="cm">,</span> <span class="i">$RecordType</span><span class="cm">,</span> <span class="i">$PreviousChainID</span><span class="cm">,</span> <span class="i">$FirstChainID</span><span class="cm">,</span> <span class="i">$NewChainID</span><span class="cm">,</span> <span class="i">$NewChainIDCounter</span><span class="cm">,</span> <span class="i">%OldToNewChainIDsMap</span><span class="s">)</span><span class="sc">;</span>
 333 
 334   <span class="i">$PDBFileName</span> = <span class="i">$PDBFilesInfo</span>{<span class="w">OutFileNames</span>}[<span class="i">$FileIndex</span>][<span class="n">0</span>]<span class="sc">;</span>
 335   <span class="k">print</span> <span class="q">&quot;Generating PDBFileName file $PDBFileName...\n&quot;</span><span class="sc">;</span>
 336   <span class="k">open</span> <span class="w">OUTFILE</span><span class="cm">,</span> <span class="q">&quot;&gt;$PDBFileName&quot;</span> <span class="k">or</span> <span class="k">die</span> <span class="q">&quot;Error: Can&#39;t open $PDBFileName: $! \n&quot;</span><span class="sc">;</span>
 337 
 338   <span class="c"># Write out header and other older recors...</span>
 339   <span class="i">WriteHeaderAndOlderRecords</span><span class="s">(</span>\<span class="i">*OUTFILE</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
 340 
 341   <span class="c"># Write out all ATOM records along with TER and model records to indicate</span>
 342   <span class="c"># chains and multiple models..</span>
 343   <span class="i">%OldToNewChainIDsMap</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 344   <span class="i">$NewChainIDCounter</span> = <span class="i">$OptionsInfo</span>{<span class="w">StartingChainID</span>}<span class="sc">;</span>
 345   <span class="i">$FirstChainID</span> = <span class="n">1</span><span class="sc">;</span>
 346   <span class="i">$PreviousChainID</span> = <span class="q">&#39;&#39;</span><span class="sc">;</span>
 347   <span class="j">LINE:</span> <span class="k">for</span> <span class="i">$RecordLine</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$PDBRecordLinesRef</span>}<span class="s">)</span> <span class="s">{</span>
 348     <span class="k">if</span> <span class="s">(</span><span class="i">IsAtomRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span> || <span class="i">IsHetatmRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 349       <span class="i">$RecordType</span> = <span class="i">GetPDBRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 350 
 351       <span class="s">(</span><span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$ChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="s">)</span> = <span class="i">ParseAtomOrHetatmRecordLine</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 352 
 353       <span class="k">if</span> <span class="s">(</span><span class="k">exists</span> <span class="i">$OptionsInfo</span>{<span class="w">SpecifiedWaterResiduesMap</span>}{<span class="i">$ResidueName</span>}<span class="s">)</span> <span class="s">{</span>
 354         <span class="c"># Chain IDs are not assigned to water residues...</span>
 355         <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 356         <span class="k">next</span> <span class="j">LINE</span><span class="sc">;</span>
 357       <span class="s">}</span>
 358 
 359       <span class="k">if</span> <span class="s">(</span><span class="i">$FirstChainID</span><span class="s">)</span> <span class="s">{</span>
 360         <span class="i">$FirstChainID</span> = <span class="n">0</span><span class="sc">;</span>
 361         <span class="i">$PreviousChainID</span> = <span class="i">$ChainID</span><span class="sc">;</span>
 362         <span class="k">if</span> <span class="s">(</span><span class="i">$ChainID</span> || <span class="s">(</span>!<span class="i">$ChainID</span> &amp;&amp; <span class="i">$OptionsInfo</span>{<span class="w">RenameEmptyChainIDs</span>}<span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 363           <span class="i">$NewChainID</span> = <span class="i">$NewChainIDCounter</span><span class="sc">;</span>
 364           <span class="i">$OldToNewChainIDsMap</span>{<span class="i">$ChainID</span>} = <span class="i">$NewChainID</span><span class="sc">;</span>
 365         <span class="s">}</span>
 366         <span class="k">else</span> <span class="s">{</span>
 367           <span class="i">$NewChainID</span> = <span class="q">&#39;&#39;</span><span class="sc">;</span>
 368         <span class="s">}</span>
 369       <span class="s">}</span>
 370       <span class="k">elsif</span> <span class="s">(</span><span class="i">$PreviousChainID</span> <span class="k">ne</span> <span class="i">$ChainID</span><span class="s">)</span> <span class="s">{</span>
 371         <span class="k">if</span> <span class="s">(</span><span class="i">$ChainID</span> || <span class="s">(</span>!<span class="i">$ChainID</span> &amp;&amp; <span class="i">$OptionsInfo</span>{<span class="w">RenameEmptyChainIDs</span>}<span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 372           <span class="i">$PreviousChainID</span> = <span class="i">$ChainID</span><span class="sc">;</span>
 373           <span class="k">if</span> <span class="s">(</span><span class="k">exists</span> <span class="i">$OldToNewChainIDsMap</span>{<span class="i">$ChainID</span>}<span class="s">)</span> <span class="s">{</span>
 374             <span class="i">$NewChainID</span> = <span class="i">$OldToNewChainIDsMap</span>{<span class="i">$ChainID</span>}<span class="sc">;</span>
 375           <span class="s">}</span>
 376           <span class="k">else</span> <span class="s">{</span>
 377             <span class="i">$NewChainIDCounter</span>++<span class="sc">;</span>
 378             <span class="i">$NewChainID</span> = <span class="i">$NewChainIDCounter</span><span class="sc">;</span>
 379             <span class="i">$OldToNewChainIDsMap</span>{<span class="i">$ChainID</span>} = <span class="i">$NewChainID</span><span class="sc">;</span>
 380           <span class="s">}</span>
 381         <span class="s">}</span>
 382         <span class="k">else</span> <span class="s">{</span>
 383           <span class="i">$NewChainID</span> = <span class="q">&#39;&#39;</span><span class="sc">;</span>
 384         <span class="s">}</span>
 385       <span class="s">}</span>
 386 
 387       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateAtomOrHetatmRecordLine</span><span class="s">(</span><span class="i">$RecordType</span><span class="cm">,</span> <span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$AtomName</span><span class="cm">,</span> <span class="i">$AlternateLocation</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$NewChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="cm">,</span> <span class="i">$X</span><span class="cm">,</span> <span class="i">$Y</span><span class="cm">,</span> <span class="i">$Z</span><span class="cm">,</span> <span class="i">$Occupancy</span><span class="cm">,</span> <span class="i">$TemperatureFactor</span><span class="cm">,</span> <span class="i">$SegmentID</span><span class="cm">,</span> <span class="i">$ElementSymbol</span><span class="cm">,</span> <span class="i">$AtomCharge</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 388     <span class="s">}</span>
 389     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsTerRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 390       <span class="i">$AtomNumber</span>++<span class="sc">;</span>
 391       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateTerRecordLine</span><span class="s">(</span><span class="i">$AtomNumber</span><span class="cm">,</span> <span class="i">$ResidueName</span><span class="cm">,</span> <span class="i">$NewChainID</span><span class="cm">,</span> <span class="i">$ResidueNumber</span><span class="cm">,</span> <span class="i">$InsertionCode</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 392     <span class="s">}</span>
 393     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsModelRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 394       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 395     <span class="s">}</span>
 396     <span class="k">elsif</span> <span class="s">(</span><span class="i">IsEndmdlRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 397       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 398     <span class="s">}</span>
 399   <span class="s">}</span>
 400 
 401   <span class="c"># Write out CONECT records...</span>
 402   <span class="k">for</span> <span class="i">$RecordLine</span> <span class="s">(</span><span class="i">@</span>{<span class="i">$PDBRecordLinesRef</span>}<span class="s">)</span> <span class="s">{</span>
 403     <span class="k">if</span> <span class="s">(</span><span class="i">IsConectRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 404       <span class="k">print</span> <span class="i">OUTFILE</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 405     <span class="s">}</span>
 406   <span class="s">}</span>
 407 
 408   <span class="c"># Write out END record...</span>
 409   <span class="k">print</span> <span class="i">OUTFILE</span> <span class="i">GenerateEndRecordLine</span><span class="s">(</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 410 
 411   <span class="k">close</span> <span class="w">OUTFILE</span><span class="sc">;</span>
 412 <span class="s">}</span>
 413 
 414 
 415 <span class="c"># Write out modifed header and other older records...</span>
<a name="WriteHeaderAndOlderRecords-"></a> 416 <span class="k">sub </span><span class="m">WriteHeaderAndOlderRecords</span> <span class="s">{</span>
 417   <span class="k">my</span><span class="s">(</span><span class="i">$OutFileRef</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
 418 
 419   <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">ModifyHeaderRecord</span>}<span class="s">)</span> <span class="s">{</span>
 420     <span class="c"># Write out modified HEADER record...</span>
 421     <span class="k">my</span><span class="s">(</span><span class="i">$Classification</span><span class="cm">,</span> <span class="i">$DepositionDate</span><span class="cm">,</span> <span class="i">$IDCode</span><span class="s">)</span> = <span class="i">GetHeaderRecordInformation</span><span class="s">(</span><span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
 422     <span class="i">$Classification</span> = <span class="q">&#39;Data modified using MayaChemTools&#39;</span><span class="sc">;</span>
 423     <span class="k">print</span> <span class="i">$OutFileRef</span> <span class="i">GenerateHeaderRecordLine</span><span class="s">(</span><span class="i">$IDCode</span><span class="cm">,</span> <span class="i">$Classification</span><span class="s">)</span><span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 424   <span class="s">}</span>
 425   <span class="k">else</span> <span class="s">{</span>
 426     <span class="k">print</span> <span class="i">$OutFileRef</span> <span class="i">$PDBRecordLinesRef</span>-&gt;[<span class="n">0</span>]<span class="cm">,</span> <span class="q">&quot;\n&quot;</span><span class="sc">;</span>
 427   <span class="s">}</span>
 428 
 429   <span class="c"># Write out any old records...</span>
 430   <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">KeepOldRecords</span>}<span class="s">)</span> <span class="s">{</span>
 431     <span class="k">my</span><span class="s">(</span><span class="i">$RecordLineIndex</span><span class="cm">,</span> <span class="i">$RecordLine</span><span class="s">)</span><span class="sc">;</span>
 432     <span class="c"># Skip HEADER record and write out older records all the way upto first MODEL/ATOM/HETATM records from input file...</span>
 433     <span class="j">RECORDLINE:</span> <span class="k">for</span> <span class="i">$RecordLineIndex</span> <span class="s">(</span><span class="n">1</span> .. <span class="i">$#</span>{<span class="i">$PDBRecordLinesRef</span>}<span class="s">)</span> <span class="s">{</span>
 434       <span class="i">$RecordLine</span> = <span class="i">$PDBRecordLinesRef</span>-&gt;[<span class="i">$RecordLineIndex</span>]<span class="sc">;</span>
 435       <span class="k">if</span> <span class="s">(</span><span class="i">IsModelRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span> || <span class="i">IsAtomRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span> || <span class="i">IsHetatmRecordType</span><span class="s">(</span><span class="i">$RecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 436         <span class="k">last</span> <span class="j">RECORDLINE</span><span class="sc">;</span>
 437       <span class="s">}</span>
 438       <span class="k">print</span> <span class="i">$OutFileRef</span> <span class="q">&quot;$RecordLine\n&quot;</span><span class="sc">;</span>
 439     <span class="s">}</span>
 440   <span class="s">}</span>
 441 <span class="s">}</span>
 442 
 443 <span class="c"># Get header record information assuming it&#39;s the first record...</span>
<a name="GetHeaderRecordInformation-"></a> 444 <span class="k">sub </span><span class="m">GetHeaderRecordInformation</span> <span class="s">{</span>
 445   <span class="k">my</span><span class="s">(</span><span class="i">$PDBRecordLinesRef</span><span class="s">)</span> = <span class="i">@_</span><span class="sc">;</span>
 446   <span class="k">my</span><span class="s">(</span><span class="i">$Classification</span><span class="cm">,</span> <span class="i">$DepositionDate</span><span class="cm">,</span> <span class="i">$IDCode</span><span class="cm">,</span> <span class="i">$HeaderRecordLine</span><span class="s">)</span><span class="sc">;</span>
 447 
 448   <span class="s">(</span><span class="i">$Classification</span><span class="cm">,</span> <span class="i">$DepositionDate</span><span class="cm">,</span> <span class="i">$IDCode</span><span class="s">)</span> = <span class="s">(</span><span class="q">&#39;&#39;</span><span class="s">)</span> x <span class="n">3</span><span class="sc">;</span>
 449   <span class="i">$HeaderRecordLine</span> = <span class="i">$PDBRecordLinesRef</span>-&gt;[<span class="n">0</span>]<span class="sc">;</span>
 450   <span class="k">if</span> <span class="s">(</span><span class="i">IsHeaderRecordType</span><span class="s">(</span><span class="i">$HeaderRecordLine</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 451     <span class="s">(</span><span class="i">$Classification</span><span class="cm">,</span> <span class="i">$DepositionDate</span><span class="cm">,</span> <span class="i">$IDCode</span><span class="s">)</span> = <span class="i">ParseHeaderRecordLine</span><span class="s">(</span><span class="i">$HeaderRecordLine</span><span class="s">)</span><span class="sc">;</span>
 452   <span class="s">}</span>
 453   <span class="k">return</span> <span class="s">(</span><span class="i">$Classification</span><span class="cm">,</span> <span class="i">$DepositionDate</span><span class="cm">,</span> <span class="i">$IDCode</span><span class="s">)</span><span class="sc">;</span>
 454 <span class="s">}</span>
 455 
 456 
 457 <span class="c"># Process option values...</span>
<a name="ProcessOptions-"></a> 458 <span class="k">sub </span><span class="m">ProcessOptions</span> <span class="s">{</span>
 459   <span class="i">%OptionsInfo</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 460   <span class="i">$OptionsInfo</span>{<span class="w">Mode</span>} = <span class="i">$Options</span>{<span class="w">mode</span>}<span class="sc">;</span>
 461 
 462   <span class="i">$OptionsInfo</span>{<span class="w">StartingAtomNumber</span>} = <span class="i">$Options</span>{<span class="w">atomnumberstart</span>}<span class="sc">;</span>
 463   <span class="i">$OptionsInfo</span>{<span class="w">StartingChainID</span>} = <span class="i">$Options</span>{<span class="w">chainidstart</span>}<span class="sc">;</span>
 464   <span class="i">$OptionsInfo</span>{<span class="w">RenameEmptyChainIDs</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">chainidrenameempty</span>} =~ <span class="q">/^Yes$/i</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 465 
 466   <span class="i">$OptionsInfo</span>{<span class="w">KeepOldRecords</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">keepoldrecords</span>} =~ <span class="q">/^Yes$/i</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 467   <span class="i">$OptionsInfo</span>{<span class="w">ModifyHeaderRecord</span>} = <span class="s">(</span><span class="i">$Options</span>{<span class="w">modifyheader</span>} =~ <span class="q">/^Yes$/i</span><span class="s">)</span> ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 468 
 469   <span class="i">$OptionsInfo</span>{<span class="w">ResidueNumberMode</span>} = <span class="i">$Options</span>{<span class="w">residuenumbermode</span>}<span class="sc">;</span>
 470   <span class="i">$OptionsInfo</span>{<span class="w">StartingResidueNumber</span>} = <span class="i">$Options</span>{<span class="w">residuenumberstart</span>}<span class="sc">;</span>
 471 
 472   <span class="i">$OptionsInfo</span>{<span class="w">HetatmResidueNumberMode</span>} = <span class="i">$Options</span>{<span class="w">residuenumberhetatmmode</span>}<span class="sc">;</span>
 473   <span class="i">$OptionsInfo</span>{<span class="w">StartingHetatmResidueNumber</span>} = <span class="i">$Options</span>{<span class="w">residuenumberstarthetatm</span>}<span class="sc">;</span>
 474 
 475   <span class="i">$OptionsInfo</span>{<span class="w">OverwriteFiles</span>} = <span class="i">$Options</span>{<span class="w">overwrite</span>} ? <span class="n">1</span> <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 476   <span class="i">$OptionsInfo</span>{<span class="w">OutFileRoot</span>} = <span class="i">$Options</span>{<span class="w">root</span>} ? <span class="i">$Options</span>{<span class="w">root</span>} <span class="co">:</span> <span class="n">0</span><span class="sc">;</span>
 477 
 478   <span class="i">$OptionsInfo</span>{<span class="w">WaterResidueNames</span>} = <span class="i">$Options</span>{<span class="w">waterresiduenames</span>}<span class="sc">;</span>
 479   <span class="i">$OptionsInfo</span>{<span class="w">StartingWaterResidueNumber</span>} = <span class="i">$Options</span>{<span class="w">waterresiduestart</span>}<span class="sc">;</span>
 480   <span class="i">@</span>{<span class="i">$OptionsInfo</span>{<span class="w">SpecifiedWaterResiduesList</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 481   <span class="i">%</span>{<span class="i">$OptionsInfo</span>{<span class="w">SpecifiedWaterResiduesMap</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 482 
 483   <span class="k">my</span><span class="s">(</span><span class="i">@SpecifiedWaterResiduesList</span><span class="s">)</span><span class="sc">;</span>
 484   <span class="i">@SpecifiedWaterResiduesList</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 485   <span class="k">my</span><span class="s">(</span><span class="i">$WaterResidueName</span><span class="s">)</span><span class="sc">;</span>
 486   <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">WaterResidueNames</span>} =~ <span class="q">/Automatic/i</span><span class="s">)</span> <span class="s">{</span>
 487     <span class="k">push</span> <span class="i">@SpecifiedWaterResiduesList</span><span class="cm">,</span> <span class="s">(</span><span class="q">&#39;HOH&#39;</span><span class="cm">,</span> <span class="q">&#39;WAT&#39;</span><span class="cm">,</span> <span class="q">&#39;H2O&#39;</span><span class="s">)</span><span class="sc">;</span>
 488   <span class="s">}</span>
 489   <span class="k">else</span> <span class="s">{</span>
 490     <span class="i">@SpecifiedWaterResiduesList</span> = <span class="k">split</span> <span class="q">/\,/</span><span class="cm">,</span> <span class="i">$Options</span>{<span class="w">waterresiduenames</span>}<span class="sc">;</span>
 491   <span class="s">}</span>
 492   <span class="k">for</span> <span class="i">$WaterResidueName</span> <span class="s">(</span><span class="i">@SpecifiedWaterResiduesList</span><span class="s">)</span> <span class="s">{</span>
 493     <span class="i">$OptionsInfo</span>{<span class="w">SpecifiedWaterResiduesMap</span>}{<span class="i">$WaterResidueName</span>} = <span class="i">$WaterResidueName</span><span class="sc">;</span>
 494   <span class="s">}</span>
 495   <span class="k">push</span> <span class="i">@</span>{<span class="i">$OptionsInfo</span>{<span class="w">SpecifiedWaterResiduesList</span>}}<span class="cm">,</span> <span class="i">@SpecifiedWaterResiduesList</span><span class="sc">;</span>
 496 <span class="s">}</span>
 497 
 498 <span class="c"># Retrieve information about PDB files...</span>
<a name="RetrievePDBFilesInfo-"></a> 499 <span class="k">sub </span><span class="m">RetrievePDBFilesInfo</span> <span class="s">{</span>
 500   <span class="k">my</span><span class="s">(</span><span class="i">$Index</span><span class="cm">,</span> <span class="i">$PDBFile</span><span class="cm">,</span> <span class="i">$PDBRecordLinesRef</span><span class="cm">,</span> <span class="i">$ChainsAndResiduesInfoRef</span><span class="cm">,</span> <span class="i">$FileDir</span><span class="cm">,</span> <span class="i">$FileName</span><span class="cm">,</span> <span class="i">$FileExt</span><span class="cm">,</span> <span class="i">$OutFileName</span><span class="cm">,</span> <span class="i">$OutFileRoot</span><span class="cm">,</span>  <span class="i">$Mode</span><span class="cm">,</span> <span class="i">$OutFileMode</span><span class="cm">,</span> <span class="i">@OutFileNames</span><span class="s">)</span><span class="sc">;</span>
 501 
 502   <span class="i">%PDBFilesInfo</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 503   <span class="i">@</span>{<span class="i">$PDBFilesInfo</span>{<span class="w">FileOkay</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 504   <span class="i">@</span>{<span class="i">$PDBFilesInfo</span>{<span class="w">OutFileRoot</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 505   <span class="i">@</span>{<span class="i">$PDBFilesInfo</span>{<span class="w">OutFileNames</span>}} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 506 
 507   <span class="j">FILELIST:</span> <span class="k">for</span> <span class="i">$Index</span> <span class="s">(</span><span class="n">0</span> .. <span class="i">$#PDBFilesList</span><span class="s">)</span> <span class="s">{</span>
 508     <span class="i">$PDBFilesInfo</span>{<span class="w">FileOkay</span>}[<span class="i">$Index</span>] = <span class="n">0</span><span class="sc">;</span>
 509 
 510     <span class="i">$PDBFilesInfo</span>{<span class="w">OutFileRoot</span>}[<span class="i">$Index</span>] = <span class="q">&#39;&#39;</span><span class="sc">;</span>
 511     <span class="i">@</span>{<span class="i">$PDBFilesInfo</span>{<span class="w">OutFileNames</span>}[<span class="i">$Index</span>]} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 512     <span class="i">@</span>{<span class="i">$PDBFilesInfo</span>{<span class="w">OutFileNames</span>}[<span class="i">$Index</span>]} = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 513 
 514     <span class="i">$PDBFile</span> = <span class="i">$PDBFilesList</span>[<span class="i">$Index</span>]<span class="sc">;</span>
 515     <span class="k">if</span> <span class="s">(</span>!<span class="s">(</span><span class="k">-e</span> <span class="i">$PDBFile</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 516       <span class="k">warn</span> <span class="q">&quot;Warning: Ignoring file $PDBFile: It doesn&#39;t exist\n&quot;</span><span class="sc">;</span>
 517       <span class="k">next</span> <span class="j">FILELIST</span><span class="sc">;</span>
 518     <span class="s">}</span>
 519     <span class="k">if</span> <span class="s">(</span>!<span class="i">CheckFileType</span><span class="s">(</span><span class="i">$PDBFile</span><span class="cm">,</span> <span class="q">&quot;pdb&quot;</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 520       <span class="k">warn</span> <span class="q">&quot;Warning: Ignoring file $PDBFile: It&#39;s not a PDB file\n&quot;</span><span class="sc">;</span>
 521       <span class="k">next</span> <span class="j">FILELIST</span><span class="sc">;</span>
 522     <span class="s">}</span>
 523     <span class="k">if</span> <span class="s">(</span>! <span class="k">open</span> <span class="w">PDBFILE</span><span class="cm">,</span> <span class="q">&quot;$PDBFile&quot;</span><span class="s">)</span> <span class="s">{</span>
 524       <span class="k">warn</span> <span class="q">&quot;Warning: Ignoring file $PDBFile: Couldn&#39;t open it: $! \n&quot;</span><span class="sc">;</span>
 525       <span class="k">next</span> <span class="j">FILELIST</span><span class="sc">;</span>
 526     <span class="s">}</span>
 527     <span class="k">close</span> <span class="w">PDBFILE</span><span class="sc">;</span>
 528 
 529     <span class="c"># Get PDB data...</span>
 530     <span class="i">$PDBRecordLinesRef</span> = <span class="i">ReadPDBFile</span><span class="s">(</span><span class="i">$PDBFile</span><span class="s">)</span><span class="sc">;</span>
 531     <span class="i">$ChainsAndResiduesInfoRef</span> = <span class="i">GetChainsAndResidues</span><span class="s">(</span><span class="i">$PDBRecordLinesRef</span><span class="s">)</span><span class="sc">;</span>
 532     <span class="k">if</span> <span class="s">(</span>!<span class="k">scalar</span> <span class="i">@</span>{<span class="i">$ChainsAndResiduesInfoRef</span>-&gt;{<span class="w">ChainIDs</span>}}<span class="s">)</span> <span class="s">{</span>
 533       <span class="k">warn</span> <span class="q">&quot;Warning: Ignoring file $PDBFile: No chains found \n&quot;</span><span class="sc">;</span>
 534       <span class="k">next</span> <span class="j">FILELIST</span><span class="sc">;</span>
 535     <span class="s">}</span>
 536 
 537     <span class="c"># Setup output file names...</span>
 538     <span class="i">@OutFileNames</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 539     <span class="i">$FileDir</span> = <span class="q">&quot;&quot;</span><span class="sc">;</span> <span class="i">$FileName</span> = <span class="q">&quot;&quot;</span><span class="sc">;</span> <span class="i">$FileExt</span> = <span class="q">&quot;&quot;</span><span class="sc">;</span>
 540     <span class="s">(</span><span class="i">$FileDir</span><span class="cm">,</span> <span class="i">$FileName</span><span class="cm">,</span> <span class="i">$FileExt</span><span class="s">)</span> = <span class="i">ParseFileName</span><span class="s">(</span><span class="i">$PDBFile</span><span class="s">)</span><span class="sc">;</span>
 541     <span class="k">if</span> <span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">OutFileRoot</span>} &amp;&amp; <span class="s">(</span><span class="i">@PDBFilesList</span> == <span class="n">1</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 542       <span class="k">my</span> <span class="s">(</span><span class="i">$RootFileDir</span><span class="cm">,</span> <span class="i">$RootFileName</span><span class="cm">,</span> <span class="i">$RootFileExt</span><span class="s">)</span> = <span class="i">ParseFileName</span><span class="s">(</span><span class="i">$OptionsInfo</span>{<span class="w">OutFileRoot</span>}<span class="s">)</span><span class="sc">;</span>
 543       <span class="k">if</span> <span class="s">(</span><span class="i">$RootFileName</span> &amp;&amp; <span class="i">$RootFileExt</span><span class="s">)</span> <span class="s">{</span>
 544         <span class="i">$FileName</span> = <span class="i">$RootFileName</span><span class="sc">;</span>
 545       <span class="s">}</span>
 546       <span class="k">else</span> <span class="s">{</span>
 547         <span class="i">$FileName</span> = <span class="i">$OptionsInfo</span>{<span class="w">OutFileRoot</span>}<span class="sc">;</span>
 548       <span class="s">}</span>
 549       <span class="i">$OutFileRoot</span> = <span class="i">$FileName</span><span class="sc">;</span>
 550     <span class="s">}</span>
 551     <span class="k">else</span> <span class="s">{</span>
 552       <span class="i">$OutFileRoot</span> = <span class="i">$FileName</span><span class="sc">;</span>
 553     <span class="s">}</span>
 554     <span class="i">$Mode</span> = <span class="i">$OptionsInfo</span>{<span class="w">Mode</span>}<span class="sc">;</span>
 555     <span class="j">MODE:</span> <span class="s">{</span>
 556         <span class="k">if</span> <span class="s">(</span><span class="i">$Mode</span> =~ <span class="q">/^RenumberAtoms$/i</span><span class="s">)</span> <span class="s">{</span> <span class="i">$OutFileMode</span> = <span class="q">&#39;RenumberAtoms&#39;</span><span class="sc">;</span> <span class="k">last</span> <span class="j">MODE</span><span class="sc">;</span><span class="s">}</span>
 557         <span class="k">if</span> <span class="s">(</span><span class="i">$Mode</span> =~ <span class="q">/^RenumberResidues$/i</span><span class="s">)</span> <span class="s">{</span> <span class="i">$OutFileMode</span> = <span class="q">&#39;RenumberResidues&#39;</span><span class="sc">;</span> <span class="k">last</span> <span class="j">MODE</span><span class="sc">;</span><span class="s">}</span>
 558         <span class="k">if</span> <span class="s">(</span><span class="i">$Mode</span> =~ <span class="q">/^RenumberWaters$/i</span><span class="s">)</span> <span class="s">{</span> <span class="i">$OutFileMode</span> = <span class="q">&#39;RenumberWaters&#39;</span><span class="sc">;</span> <span class="k">last</span> <span class="j">MODE</span><span class="sc">;</span><span class="s">}</span>
 559         <span class="k">if</span> <span class="s">(</span><span class="i">$Mode</span> =~ <span class="q">/^RenameChainIDs$/i</span><span class="s">)</span> <span class="s">{</span> <span class="i">$OutFileMode</span> = <span class="q">&#39;RenameChainIDs&#39;</span><span class="sc">;</span> <span class="k">last</span> <span class="j">MODE</span><span class="sc">;</span><span class="s">}</span>
 560         <span class="i">$OutFileMode</span> = <span class="q">&#39;&#39;</span><span class="sc">;</span>
 561     <span class="s">}</span>
 562     <span class="i">$OutFileName</span> = <span class="q">&quot;${OutFileRoot}${OutFileMode}.pdb&quot;</span><span class="sc">;</span>
 563     <span class="k">push</span> <span class="i">@OutFileNames</span><span class="cm">,</span> <span class="i">$OutFileName</span><span class="sc">;</span>
 564 
 565     <span class="i">$PDBFilesInfo</span>{<span class="w">FileOkay</span>}[<span class="i">$Index</span>] = <span class="n">1</span><span class="sc">;</span>
 566     <span class="i">$PDBFilesInfo</span>{<span class="w">OutFileRoot</span>}[<span class="i">$Index</span>] = <span class="i">$OutFileRoot</span><span class="sc">;</span>
 567 
 568     <span class="k">push</span> <span class="i">@</span>{<span class="i">$PDBFilesInfo</span>{<span class="w">OutFileNames</span>}[<span class="i">$Index</span>]}<span class="cm">,</span> <span class="i">@OutFileNames</span><span class="sc">;</span>
 569   <span class="s">}</span>
 570 <span class="s">}</span>
 571 
 572 <span class="c"># Setup script usage  and retrieve command line arguments specified using various options...</span>
<a name="SetupScriptUsage-"></a> 573 <span class="k">sub </span><span class="m">SetupScriptUsage</span> <span class="s">{</span>
 574 
 575   <span class="c"># Retrieve all the options...</span>
 576   <span class="i">%Options</span> = <span class="s">(</span><span class="s">)</span><span class="sc">;</span>
 577   <span class="i">$Options</span>{<span class="w">atomnumberstart</span>} = <span class="n">1</span><span class="sc">;</span>
 578   <span class="i">$Options</span>{<span class="w">chainidstart</span>} = <span class="q">&#39;A&#39;</span><span class="sc">;</span>
 579   <span class="i">$Options</span>{<span class="w">chainidrenameempty</span>} = <span class="q">&#39;No&#39;</span><span class="sc">;</span>
 580   <span class="i">$Options</span>{<span class="w">keepoldrecords</span>} = <span class="q">&#39;no&#39;</span><span class="sc">;</span>
 581   <span class="i">$Options</span>{<span class="w">mode</span>} = <span class="q">&#39;RenumberResidues&#39;</span><span class="sc">;</span>
 582   <span class="i">$Options</span>{<span class="w">modifyheader</span>} = <span class="q">&#39;yes&#39;</span><span class="sc">;</span>
 583   <span class="i">$Options</span>{<span class="w">residuenumbermode</span>} = <span class="q">&#39;PerChain&#39;</span><span class="sc">;</span>
 584   <span class="i">$Options</span>{<span class="w">residuenumberstart</span>} = <span class="n">1</span><span class="sc">;</span>
 585   <span class="i">$Options</span>{<span class="w">residuenumberhetatmmode</span>} = <span class="q">&#39;Automatic&#39;</span><span class="sc">;</span>
 586   <span class="i">$Options</span>{<span class="w">residuenumberstarthetatm</span>} = <span class="n">6000</span><span class="sc">;</span>
 587   <span class="i">$Options</span>{<span class="w">waterresiduenames</span>} = <span class="q">&#39;Automatic&#39;</span><span class="sc">;</span>
 588   <span class="i">$Options</span>{<span class="w">waterresiduestart</span>} = <span class="n">8000</span><span class="sc">;</span>
 589 
 590   <span class="k">if</span> <span class="s">(</span>!<span class="i">GetOptions</span><span class="s">(</span>\<span class="i">%Options</span><span class="cm">,</span> <span class="q">&quot;help|h&quot;</span><span class="cm">,</span> <span class="q">&quot;atomnumberstart|a=i&quot;</span><span class="cm">,</span> <span class="q">&quot;chainidstart|c=s&quot;</span><span class="cm">,</span> <span class="q">&quot;chainidrenameempty=s&quot;</span><span class="cm">,</span> <span class="q">&quot;keepoldrecords|k=s&quot;</span><span class="cm">,</span> <span class="q">&quot;mode|m=s&quot;</span><span class="cm">,</span> <span class="q">&quot;modifyheader=s&quot;</span><span class="cm">,</span> <span class="q">&quot;overwrite|o&quot;</span><span class="cm">,</span> <span class="q">&quot;residuenumbermode=s&quot;</span><span class="cm">,</span> <span class="q">&quot;residuenumberstart=i&quot;</span><span class="cm">,</span> <span class="q">&quot;residuenumberhetatmmode=s&quot;</span><span class="cm">,</span> <span class="q">&quot;residuenumberstarthetatm=i&quot;</span><span class="cm">,</span> <span class="q">&quot;root|r=s&quot;</span><span class="cm">,</span> <span class="q">&quot;sequencelength=i&quot;</span><span class="cm">,</span> <span class="q">&quot;waterresiduenames=s&quot;</span><span class="cm">,</span> <span class="q">&quot;waterresiduestart=i&quot;</span><span class="cm">,</span> <span class="q">&quot;workingdir|w=s&quot;</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 591     <span class="k">die</span> <span class="q">&quot;\nTo get a list of valid options and their values, use \&quot;$ScriptName -h\&quot; or\n\&quot;perl -S $ScriptName -h\&quot; command and try again...\n&quot;</span><span class="sc">;</span>
 592   <span class="s">}</span>
 593   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">workingdir</span>}<span class="s">)</span> <span class="s">{</span>
 594     <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>
 595       <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{workingdir}, for option \&quot;-w --workingdir\&quot; is not a directory name.\n&quot;</span><span class="sc">;</span>
 596     <span class="s">}</span>
 597     <span class="k">chdir</span> <span class="i">$Options</span>{<span class="w">workingdir</span>} <span class="k">or</span> <span class="k">die</span> <span class="q">&quot;Error: Couldn&#39;t chdir $Options{workingdir}: $! \n&quot;</span><span class="sc">;</span>
 598   <span class="s">}</span>
 599   <span class="k">if</span> <span class="s">(</span>!<span class="i">IsPositiveInteger</span><span class="s">(</span><span class="i">$Options</span>{<span class="w">atomnumberstart</span>}<span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 600     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{atomnumberstart}, for option \&quot;-a, --AtomNumberStart\&quot; is not valid. Allowed values: &gt;0\n&quot;</span><span class="sc">;</span>
 601   <span class="s">}</span>
 602   <span class="k">if</span> <span class="s">(</span><span class="s">(</span><span class="k">length</span><span class="s">(</span><span class="i">$Options</span>{<span class="w">chainidstart</span>}<span class="s">)</span> &gt; <span class="n">1</span><span class="s">)</span> || <span class="s">(</span><span class="i">$Options</span>{<span class="w">chainidstart</span>} !~ <span class="q">/[A-Z]/i</span><span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 603     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{chainidstart}, for option \&quot;-c, --ChainIDStart\&quot; is not valid. Allowed values: a single character from A to Z\n&quot;</span><span class="sc">;</span>
 604   <span class="s">}</span>
 605   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">chainidrenameempty</span>} !~ <span class="q">/^(yes|no)$/i</span><span class="s">)</span> <span class="s">{</span>
 606     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{chainidrenameempty}, for option \&quot;--chainidrenameempty\&quot; is not valid. Allowed values: yes or no\n&quot;</span><span class="sc">;</span>
 607   <span class="s">}</span>
 608   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">keepoldrecords</span>} !~ <span class="q">/^(yes|no)$/i</span><span class="s">)</span> <span class="s">{</span>
 609     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{keepoldrecords}, for option \&quot;--KeepOldRecords\&quot; is not valid. Allowed values: yes or no\n&quot;</span><span class="sc">;</span>
 610   <span class="s">}</span>
 611   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">mode</span>} !~ <span class="q">/^(RenumberAtoms|RenumberResidues|RenumberWaters|RenameChainIDs)$/i</span><span class="s">)</span> <span class="s">{</span>
 612     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{mode}, for option \&quot;-m, --mode\&quot; is not valid. Allowed values: RenumberAtoms, RenumberResidues, RenumberWaters or RenameChainIDs\n&quot;</span><span class="sc">;</span>
 613   <span class="s">}</span>
 614   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">modifyheader</span>} !~ <span class="q">/^(yes|no)$/i</span><span class="s">)</span> <span class="s">{</span>
 615     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{modifyheader}, for option \&quot;--ModifyHeader\&quot; is not valid. Allowed values: yes or no\n&quot;</span><span class="sc">;</span>
 616   <span class="s">}</span>
 617   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">residuenumbermode</span>} !~ <span class="q">/^(Sequential|PerChain)$/i</span><span class="s">)</span> <span class="s">{</span>
 618     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{residuenumbermode}, for option \&quot;--ResidueNumberMode\&quot; is not valid. Allowed values: Sequential or PerChain\n&quot;</span><span class="sc">;</span>
 619   <span class="s">}</span>
 620   <span class="k">if</span> <span class="s">(</span>!<span class="i">IsPositiveInteger</span><span class="s">(</span><span class="i">$Options</span>{<span class="w">residuenumberstart</span>}<span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 621     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{residuenumberstart}, for option \&quot;--ResidueNumberStart\&quot; is not valid. Allowed values: &gt;0\n&quot;</span><span class="sc">;</span>
 622   <span class="s">}</span>
 623   <span class="k">if</span> <span class="s">(</span><span class="i">$Options</span>{<span class="w">residuenumberhetatmmode</span>} !~ <span class="q">/^(automatic|specify)$/i</span><span class="s">)</span> <span class="s">{</span>
 624     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{residuenumberhetatmmode}, for option \&quot;--residuenumbermode\&quot; is not valid. Allowed values: automatic or specify\n&quot;</span><span class="sc">;</span>
 625   <span class="s">}</span>
 626   <span class="k">if</span> <span class="s">(</span>!<span class="i">IsPositiveInteger</span><span class="s">(</span><span class="i">$Options</span>{<span class="w">residuenumberstarthetatm</span>}<span class="s">)</span><span class="s">)</span> <span class="s">{</span>
 627     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{residuenumberstarthetatm}, for option \&quot;--residuenumberstartHetatm\&quot; is not valid. Allowed values: &gt;0\n&quot;</span><span class="sc">;</span>
 628   <span class="s">}</span>
 629   <span class="k">if</span> <span class="s">(</span>!<span class="w">IsPositiveInteger</span> <span class="i">$Options</span>{<span class="w">waterresiduestart</span>}<span class="s">)</span> <span class="s">{</span>
 630     <span class="k">die</span> <span class="q">&quot;Error: The value specified, $Options{waterresiduestart}, for option \&quot;--waterresiduestart\&quot; is not valid. Allowed values: &gt;0\n&quot;</span><span class="sc">;</span>
 631   <span class="s">}</span>
 632 <span class="s">}</span>
 633 
<a name="EOF-"></a></pre>
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