MayaChemTools

   1 #!/usr/bin/perl -w
   2 #
   3 # $RCSfile: ModifyNewLineChar.pl,v $
   4 # $Date: 2015/02/28 20:46:20 $
   5 # $Revision: 1.26 $
   6 #
   7 # Author: Manish Sud <msud@san.rr.com>
   8 #
   9 # Copyright (C) 2015 Manish Sud. All rights reserved.
  10 #
  11 # This file is part of MayaChemTools.
  12 #
  13 # MayaChemTools is free software; you can redistribute it and/or modify it under
  14 # the terms of the GNU Lesser General Public License as published by the Free
  15 # Software Foundation; either version 3 of the License, or (at your option) any
  16 # later version.
  17 #
  18 # MayaChemTools is distributed in the hope that it will be useful, but without
  19 # any warranty; without even the implied warranty of merchantability of fitness
  20 # for a particular purpose.  See the GNU Lesser General Public License for more
  21 # details.
  22 #
  23 # You should have received a copy of the GNU Lesser General Public License
  24 # along with MayaChemTools; if not, see <http://www.gnu.org/licenses/> or
  25 # write to the Free Software Foundation Inc., 59 Temple Place, Suite 330,
  26 # Boston, MA, 02111-1307, USA.
  27 #
  28 
  29 use strict;
  30 use FindBin; use lib "$FindBin::Bin/../lib";
  31 use Getopt::Long;
  32 use File::Basename;
  33 use Text::ParseWords;
  34 use Benchmark;
  35 use FileUtil;
  36 use TextUtil;
  37 
  38 my($ScriptName, %Options, $StartTime, $EndTime, $TotalTime);
  39 
  40 # Autoflush STDOUT
  41 $| = 1;
  42 
  43 # Starting message...
  44 $ScriptName = basename $0;
  45 print "\n$ScriptName:Starting...\n\n";
  46 $StartTime = new Benchmark;
  47 
  48 # Get the options and setup script...
  49 SetupScriptUsage();
  50 if ($Options{help} || @ARGV < 1) {
  51   die GetUsageFromPod("$FindBin::Bin/$ScriptName");
  52 }
  53 
  54 my( @FilesList);
  55 @FilesList = ExpandFileNames(\@ARGV, "");
  56 
  57 # Process options...
  58 print "Processing options...\n";
  59 my(%OptionsInfo);
  60 ProcessOptions();
  61 
  62 print "Checking input file(s)...\n";
  63 my(%FilesInfo);
  64 RetrieveFilesInfo();
  65 
  66 # Generate output files...
  67 my($FileIndex);
  68 if (@FilesList > 1) {
  69   print "\nProcessing files...\n";
  70 }
  71 for $FileIndex (0 .. $#FilesList) {
  72   if ($FilesInfo{FileOkay}[$FileIndex]) {
  73     print "\nProcessing file $FilesList[$FileIndex]...\n";
  74     ModifyNewLineChar($FileIndex);
  75   }
  76 }
  77 print "\n$ScriptName:Done...\n\n";
  78 
  79 $EndTime = new Benchmark;
  80 $TotalTime = timediff ($EndTime, $StartTime);
  81 print "Total time: ", timestr($TotalTime), "\n";
  82 
  83 ###############################################################################
  84 
  85 # Modify new line characters...
  86 sub ModifyNewLineChar {
  87   my($Index) = @_;
  88   my($File, $NewFile, $Mode, $Nothing);
  89 
  90   $File = $FilesList[$Index];
  91   $NewFile = $FilesInfo{OutFile}[$Index];
  92 
  93   $Mode = $OptionsInfo{Mode};
  94 
  95   print "Generating new $NewFile file...\n";
  96 
  97   open NEWFILE, ">$NewFile" or die "Error: Can't open $NewFile: !$ \n";
  98   open FILE, "$File" or die "Error: Can't open $File: $! \n";
  99 
 100   while (<FILE>) {
 101     LINE: {
 102       if ($Mode =~ /^Unix$/i) { s/(\r\n)|(\r)|(\n)/\n/g; last LINE; }
 103       if ($Mode =~ /^Windows$/i) { s/(\r\n)|(\r)|(\n)/\r\n/g; last LINE; }
 104       if ($Mode =~ /^Mac$/i) { s/(\r\n)|(\r)|(\n)/\r/g; last LINE; }
 105       $Nothing = 1;
 106     }
 107     print NEWFILE;
 108   }
 109 
 110   close NEWFILE;
 111   close FILE;
 112 }
 113 
 114 # Retrieve input files info...
 115 sub RetrieveFilesInfo {
 116   my($File, $Index, $FileDir, $FileName, $FileExt, $NewFileName);
 117 
 118   %FilesInfo = ();
 119 
 120   @{$FilesInfo{FileOkay}} = ();
 121   @{$FilesInfo{OutFile}} = ();
 122 
 123   FILELIST: for $Index (0 .. $#FilesList) {
 124     $File = $FilesList[$Index];
 125 
 126     $FilesInfo{FileOkay}[$Index] = 0;
 127     $FilesInfo{OutFile}[$Index] = "";
 128 
 129     if (!(-e $File)) {
 130       warn "Warning: Ignoring file $File: It doesn't exist\n";
 131       next FILELIST;
 132     }
 133 
 134     if (!open FILE, "$File") {
 135       warn "Warning: Ignoring file $File: Couldn't open it: $! \n";
 136       next FILELIST;
 137     }
 138     close FILE;
 139 
 140     $FileDir = ""; $FileName = ""; $FileExt = "";
 141     ($FileDir, $FileName, $FileExt) = ParseFileName($File);
 142     $NewFileName = $FileName;
 143     if ($OptionsInfo{OutFileRoot} && (@FilesList == 1)) {
 144       my ($RootFileDir, $RootFileName, $RootFileExt) = ParseFileName($OptionsInfo{OutFileRoot});
 145       if ($RootFileName && $RootFileExt) {
 146         $NewFileName = $RootFileName;
 147       }
 148       else {
 149         $NewFileName = $OptionsInfo{OutFileRoot};
 150       }
 151     }
 152     else {
 153       $NewFileName .= $OptionsInfo{Mode};
 154     }
 155 
 156     if ($FileExt) {
 157       $NewFileName .= ".$FileExt";
 158     }
 159 
 160     if (!$OptionsInfo{Overwrite}) {
 161       if (-e $NewFileName) {
 162         warn "Warning: Ignoring file $File: New Text file, $NewFileName, already exists\n";
 163         next FILELIST;
 164       }
 165     }
 166     $FilesInfo{FileOkay}[$Index] = 1;
 167     $FilesInfo{OutFile}[$Index] = $NewFileName;
 168   }
 169 }
 170 
 171 # Process option values...
 172 sub ProcessOptions {
 173   %OptionsInfo = ();
 174 
 175   $OptionsInfo{Mode} = $Options{mode};
 176 
 177   $OptionsInfo{OutFileRoot} = $Options{root} ? $Options{root} : undef;
 178   $OptionsInfo{Overwrite} = $Options{overwrite} ? $Options{overwrite} : undef;
 179 
 180 }
 181 
 182 # Setup script usage  and retrieve command line arguments specified using various options...
 183 sub SetupScriptUsage {
 184 
 185   # Retrieve all the options...
 186   %Options = ();
 187   $Options{mode} = "Unix";
 188 
 189   if (!GetOptions(\%Options, "help|h", "mode|m=s", "overwrite|o", "root|r=s", "workingdir|w=s")) {
 190     die "\nTo get a list of valid options and their values, use \"$ScriptName -h\" or\n\"perl -S $ScriptName -h\" command and try again...\n";
 191   }
 192   if ($Options{workingdir}) {
 193     if (! -d $Options{workingdir}) {
 194       die "Error: The value specified, $Options{workingdir},  for option \"-w --workingdir\" is not a directory name.\n";
 195     }
 196     chdir $Options{workingdir} or die "Error: Couldn't chdir $Options{workingdir}: $! \n";
 197   }
 198   if ($Options{mode} !~ /^(Unix|Windows|Mac)$/i) {
 199     die "Error: The value specified, $Options{mode}, for option \"-m --mode\" is not valid. Allowed values: Unix, Windows, or Mac\n";
 200   }
 201 }
 202