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Full Discussion: Look for substrings with special characters
Top Forums Shell Programming and Scripting Look for substrings with special characters Post 302972773 by sheetalk on Tuesday 10th of May 2016 05:51:33 PM
Old 05-10-2016
Look for substrings with special characters
Hello gurus,

I have a lookup table

Code:
cat  tmp1
[//rtwttwtr*fgg]\\\erw``~ 1
^774574574565665f[[[//]\] 2
()42543^[[D^[[D^[[D^[[D^[[D353535345****@3242- 3


and I`m trying to compare a bunch of strings such that, either the lookup table column 1, or the string to be looked up are substrings of each other (and return the second lookup column if yes).

Code:
cat  tmp2
[//rtwtt
[//rtwttwtr*fgg]\\\erw``~
[//rtwttwtr*fgg]\\\erw``~4353535^^^7
()42543^[[D^[[D^[[D^[[D^[[D353535345****@3242--
rwerq5555525525

My desired output is


Code:
[//rtwtt 1
[//rtwttwtr*fgg]\\\erw``~ 1 
[//rtwttwtr*fgg]\\\erw``~4353535^^^7 1
()42543^[[D^[[D^[[D^[[D^[[D353535345****@3242-- 3
rwerq5555525525

Here is what I tried

Code:
awk 'NR==FNR{a[$1]=$2;next} { for(as in a) { if(($1~as) || (as~$1)) print $1,a[as]; continue}}' tmp1 tmp2


Also

Code:
awk 'NR==FNR{a[$1]=$2;next} { for(as in a) { if(($1~/as/) || (as~/$1/)) print $1,a[as]; continue}}' tmp1 tmp2

How can I tell the code to ignore the special characters and just compare the strings.
note: Either of the strings must fully contain the other string to satisfy the lookup.
 

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LEARN ABOUT MOJAVE

locale::codes::langext

Locale::Codes::LangExt(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangExt(3pm)

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 v5.18.2							    2013-11-04					       Locale::Codes::LangExt(3pm)
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