Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Perl nested array problem
Top Forums Shell Programming and Scripting Perl nested array problem Post 302442412 by pludi on Wednesday 4th of August 2010 06:56:24 AM
Old 08-04-2010
Something like this:
Code:
$ cat trav.pl
#!/usr/bin/perl

use strict;
use warnings;

my $start = [ 0, [ 1, 2, 3 ], [ 4, [ 5, 6, 7 ], 8 ], 9 ];

sub print_arr {
    my ( $level, $entry ) = @_;
    return unless ( ref $entry eq "ARRAY" );
    my @arr = @$entry;
    for ( my $i = 0 ; $i <= $#arr ; $i++ ) {
        if ( ref $arr[$i] eq "ARRAY" ) {
            print_arr( $level + 1, $arr[$i] );
        }
        else {
            print " " x $level;
            print "Element ", $i, ": ", $arr[$i], "\n";
        }
    }
}

print_arr( 0, $start );
$ perl trav.pl
Element 0: 0
 Element 0: 1
 Element 1: 2
 Element 2: 3
 Element 0: 4
  Element 0: 5
  Element 1: 6
  Element 2: 7
 Element 2: 8
Element 3: 9

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

PERL, push to hash of array problem

$key = "a"; $value = "hello"; %myhash = {} ; push @{ myHash{$key} }, $hello; print $myHash{$key}."\n"; this script prints "hello" but has following error message. Reference found where even-sized list expected at ./test line 5. can any one help me to fix this problem?? (3 Replies)
Discussion started by: bonosungho
3 Replies

2. Shell Programming and Scripting

Nested foreach in perl

I have two arrays @nextArray contains some files like \main\1\Xul.xml@@\main\galileo_integration_sjc\0 \main\1\PortToStorageDialog.xml@@\main\galileo_integration_sjc\0 . . . \main\1\PreferencesDialog.xml@@\main\galileo_integration_sjc\0 @otherArray contains some files like ... (2 Replies)
Discussion started by: nmattam
2 Replies

3. Shell Programming and Scripting

PHP: Search Multi-Dimensional(nested) array and export values of currenly worked on array.

Hi All, I'm writing a nagios check that will see if our ldap servers are in sync... I got the status data into a nested array, I would like to search key of each array and if "OK" is NOT present, echo other key=>values in the current array to a variable so...eg...let take the single array... (1 Reply)
Discussion started by: zeekblack
1 Replies

4. Shell Programming and Scripting

Perl and string array problem

#!/usr/bin/perl my @arr=("hello", "how", "are", "you"); $l=length(@arr); print $l; This print 1.Why? How can i print the array size = 4? I want to store these in an array. hello how are you And then i want to access these element through indexing. How can i do this? (4 Replies)
Discussion started by: cola
4 Replies

5. Shell Programming and Scripting

Perl - nested substitutions

How can I nest substitutions ? My solution just seems cheap ... sample data Cisco Catalyst Operating System Software, Version 235.5(18) Cisco Catalyst Operating System Software, Version 17.6(7) Cisco Catalyst Operating System Software, Version 19.6(7) Cisco Catalyst Operating System... (1 Reply)
Discussion started by: popeye
1 Replies

6. Shell Programming and Scripting

[Perl] Strange problem with array

Hi, I have a strange problem with arrays in Perl. That is to say, for me it is strange and perhaps there is a special reason for it that I do not know of. Not a real Perl Ace. This is the program, as an example: #!/usr/bin/perl -w #-d use strict; my $pu; my $pu_list_cmd; my... (2 Replies)
Discussion started by: ejdv
2 Replies

7. Shell Programming and Scripting

Perl nested if statement

I'm just having a bit of trouble running this code. It tells me that there's a syntax error on line 29. Any help appreciated. #!/usr/bin/perl # # Phone Book Application # %phonebook = ( "Wayne", '34687368', "Home", '378643287', "Work", '017374637', "School",... (2 Replies)
Discussion started by: cabaiste
2 Replies

8. Shell Programming and Scripting

Perl- Nested 'for' order change

Hello, I'm quite new to perl so my question is rather basic and I know there is probably a simple way around it but I can't seem to find it. I have a medium-length code and there is a part that works with a nested for loop: foreach my $j(@primpiddelta){ for (my $k=1;... (0 Replies)
Discussion started by: acsg
0 Replies

9. Shell Programming and Scripting

Attempting to pass my array as a nested parameter to loop. A little lost.

I want to pass this array as a parameter. IFS=$'\n' fortune_lines=($(fortune | fold -w 30 )) Inside of this line screen -p 0 -S ${SCREEN_SESSION} -X stuff "`printf "say ${fortune_lines}\r"`" And I am lost at this point. I am thinking something like this? Then make it loop.. ... (7 Replies)
Discussion started by: briandanielz
7 Replies

10. Shell Programming and Scripting

Fastest alternatives to flattening a non-uniform nested array with regex?

Hello, I'm looking at simplfying a function that flattens an array, it uses recursion and filters objects by type but this seems to be a waste of resources to me at least, using conditionals like this seems like a bad idea. The array can be a generic type, int, string, float but not some... (2 Replies)
Discussion started by: f77hack
2 Replies

LEARN ABOUT DEBIAN

test::data::array

Array(3pm)						User Contributed Perl Documentation						Array(3pm)

NAME

       Test::Data::Array -- test functions for array variables

SYNOPSIS

       use Test::Data qw(Array);

DESCRIPTION

   Functions
       array_any_ok( ITEM, ARRAY [, NAME] )
	   Ok if any element of ARRAY is ITEM.

       array_none_ok( ITEM, ARRAY [, NAME] )
	   Ok if no element of ARRAY is ITEM.

       array_once_ok( ITEM, ARRAY [, NAME] )
	   Ok if only one element of ARRAY is ITEM.

       array_multiple_ok( ITEM, ARRAY [, NAME] )
	   Ok if more than one element of ARRAY is ITEM.

       array_max_ok( NUMBER, ARRAY [, NAME] )
	   Ok if all elements of ARRAY are numerically less than or equal to NUMBER.

       array_min_ok( NUMBER, ARRAY [, NAME] )
	   Ok if all elements of ARRAY are numerically greater than or equal to NUMBER.

       array_maxstr_ok( ITEM, ARRAY [, NAME] )
	   Ok if all elements of ARRAY are asciibetically less than or equal to MAX.

       array_minstr_ok( ITEM, ARRAY [, NAME] )
	   Ok if all elements of ARRAY are asciibetically greater than or equal to MAX.

       array_sum_ok( SUM, ARRAY [, NAME] )
	   Ok if the numerical sum of ARRAY is SUM.

       array_empty_ok( ARRAY [, NAME] )
	   Ok if the array contains no elements.

       array_length_ok( ARRAY, LENGTH [, NAME] )
	   Ok if the array contains LENGTH number of elements.

       array_sortedstr_ascending_ok( ARRAY, [, NAME] )
	   Ok if each succeeding element is asciibetically greater than or equal to the one before.

       array_sortedstr_descending_ok( ARRAY, [, NAME] )
	   Ok if each succeeding element is asciibetically less than or equal to the one before.

       array_sorted_ascending_ok( ARRAY, [, NAME] )
	   Ok if each succeeding element is numerically greater than or equal to the one before.

       array_sorted_descending_ok( ARRAY, [, NAME] )
	   Ok if each succeeding element is numerically less than or equal to the one before.

SEE ALSO

       Test::Data, Test::Data::Scalar, Test::Data::Function, Test::Data::Hash, Test::Builder

SOURCE AVAILABILITY

       This source is in Github:

	       http://github.com/briandfoy/test-data/tree/master

AUTHOR

       brian d foy, "<bdfoy@cpan.org>"

COPYRIGHT AND LICENSE

       Copyright (c) 2002-2009 brian d foy.  All rights reserved.

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

perl v5.14.2							    2009-02-12								Array(3pm)
All times are GMT -4. The time now is 01:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy