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Full Discussion: PERL script problem
Top Forums Shell Programming and Scripting PERL script problem Post 302125689 by drl on Friday 6th of July 2007 10:28:43 AM
Old 07-06-2007
Hi, cbkihong.

An aside.
Quote:
Originally Posted by cbkihong
Perl doesn't have the foreach() loop syntax like that, I think. It looks more like Javascript or PHP than Perl. I guess you should try to quote any error messages if any, and indicate which line the error exists. The segment you posted does not appear to be a correct Perl program.
I thought so at first also, so I wrote a short script to see what happened:
Code:
#!/usr/bin/perl

# @(#) perl-basic       Template for common usage.

# use warnings;
# use strict;

my($debug);
$debug = 0;
$debug = 1;

my(@a) = qw/ a b c d e /;
my($a) = @a;

foreach my $i ( in $a ) {
        print " i is :$i:\n";
}

exit(0);

which produced:
Code:
% ./p1
Can't locate object method "in" via package "a" (perhaps you forgot to load "a"?) at ./p1 line 15.

That seems to be something to do with the OO features of perl, with which I am not sufficiently familiar to be able to provide an explanation. I perused Schwartz' Intermediate perl, but found nothing on-point so far.

I think we both looked at this and saw a corruption of the foreach with syntax from some other language. However, almost anything seems to be legal in perl. So, at least from my perspective, I was led to the wrong conclusion by assuming a syntax infraction.

Even if one enables strict and warnings, the same message is produced ... cheers, drl
 

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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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