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Full Discussion: Remove not only the duplicate string but also the keyword of the string in Perl
Top Forums Shell Programming and Scripting Remove not only the duplicate string but also the keyword of the string in Perl Post 302892354 by askari on Wednesday 12th of March 2014 11:51:47 AM
Old 03-12-2014
Remove not only the duplicate string but also the keyword of the string in Perl
Hi Perl users,

I have another problem with text processing in Perl. I have a file below:
Code:
Linux   Unix   Linux  Windows SUN
MACOS  SUN  SUN HP-AUX

I want the result below:
Code:
Unix     Windows   SUN
MACOS   HP-AUX

so the duplicate string will be removed and also the keyword of the string on that line.

I have a code below so far but the problem hasn't solved yet.
Code:
#!/usr/bin/perl

use strict;
use warnings;

my $replacement = "";
my (@temp, @data, %result_of_hash) = ();

while (<>)
{  
  chomp;
  @temp = sort split " ", $_;

  my $prev_line = undef;
  for my $i (0 .. (scalar @temp -1))
  {
    if ($temp[$i] eq $prev_line)
    {
       push @data, "$temp[$i]";
    }
  
  $prev_line = $temp[$i];
  }

  $store{$line} = 1;  
}


foreach my $key_store ( keys %store )
{
  for my $k (@data)
  {
         my $pos = index($key_store,$k);
        if ($pos > -1)
    { 
       my $result = substr ($key_store, $pos, length($k),$replacement);
       $result_of_hash{$key_store} = 1;
    }
  }    
}

print "$_\n" for keys %result_of_hash;
close (FH);

 

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LEARN ABOUT CENTOS

locale::codes::langext

Locale::Codes::LangExt(3)				User Contributed Perl Documentation				 Locale::Codes::LangExt(3)

NAME

       Locale::Codes::LangExt - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangExt;

	  $lext = code2langext('acm');		       # $lext gets 'Mesopotamian Arabic'
	  $code = langext2code('Mesopotamian Arabic'); # $code gets 'acm'

	  @codes   = all_langext_codes();
	  @names   = all_langext_names();

DESCRIPTION

       The "Locale::Codes::LangExt" module provides access to standard codes used for identifying language extensions, such as those as defined in
       the IANA language registry.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default IANA language
       registry codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language extensions. A code set may be specified using either a name, or
       a constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lext = code2langext('acm','alpha');
	  $lext = code2langext('acm',LOCALE_LANGEXT_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from the IANA language registry, such as 'acm' for Mesopotamian Arabic.

	   This is the default code set.

ROUTINES

       code2langext ( CODE [,CODESET] )
       langext2code ( NAME [,CODESET] )
       langext_code2code ( CODE ,CODESET ,CODESET2 )
       all_langext_codes ( [CODESET] )
       all_langext_names ( [CODESET] )
       Locale::Codes::LangExt::rename_langext  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangExt::add_langext  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangExt::delete_langext  ( CODE [,CODESET] )
       Locale::Codes::LangExt::add_langext_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangExt::delete_langext_alias  ( NAME )
       Locale::Codes::LangExt::rename_langext_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangExt::add_langext_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangExt::delete_langext_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.iana.org/assignments/language-subtag-registry
	   The IANA language subtag registry.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 2011-2013 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.16.3							    2013-02-27						 Locale::Codes::LangExt(3)
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