SHARYANTO::Array::Util(3) Array-related utilities

VERSION

This document describes version 0.77 of SHARYANTO::Array::Util (from Perl distribution SHARYANTO-Utils), released on 2015-09-04.

SYNOPSIS


use SHARYANTO::Array::Util qw(match_array_or_regex split_array);
match_array_or_regex('bar', ['foo', 'bar', qr/[xyz]/]); # true, matches string
match_array_or_regex('baz', ['foo', 'bar', qr/[xyz]/]); # true, matches regex
match_array_or_regex('oops', ['foo', 'bar', qr/[xyz]/]); # false
my @res = split_array('--', [qw/--opt1 --opt2 -- foo bar -- --val/]);
# -> ([qw/--opt1 --opt2/], [qw/foo bar/], [qw/--val/])
my @res = split_array(qr/--/, [qw/--opt1 --opt2 -- foo bar -- --val/], 2);
# -> ([qw/--opt1 --opt2/], [qw/foo bar -- --val/])
my @res = split_array(qr/(--)/, [qw/--opt1 --opt2 -- foo bar -- --val/], 2);
# -> ([qw/--opt1 --opt2/], [qw/--/], [qw/foo bar -- --val/])
my @res = split_array(qr/(-)(-)/, [qw/--opt1 --opt2 -- foo bar -- --val/], 2);
# -> ([qw/--opt1 --opt2/], [qw/- -/], [qw/foo bar -- --val/])

DESCRIPTION

FUNCTIONS

match_array_or_regex($needle, $haystack) -> any

Check whether an item matches (list of) values/regexes.

Examples:

 match_array_or_regex("abc", ["abc", "abd"]); # -> 1
 match_array_or_regex("abc", qr/ab./); # -> 1
 match_array_or_regex("abc", [qr/ab./, "abd"]); # -> 1
This routine can be used to match an item against a regex or a list of
strings/regexes, e.g. when matching against an ACL.

Since the smartmatch ("~~") operator can already match against a list of strings or regexes, this function is currently basically equivalent to:

 if (ref($haystack) eq 'ARRAY') {
     return $needle ~~ @$haystack;
 } else {
     return $needle =~ /$haystack/;
 }

Arguments ('*' denotes required arguments):

  • haystack* => re|str|array[re|str]
  • needle* => str

Return value: (any)

match_regex_or_array($needle, $haystack) -> any

Alias for match_array_or_regex.

Examples:

 match_regex_or_array("abc", ["abc", "abd"]); # -> 1
 match_regex_or_array("abc", qr/ab./); # -> 1
 match_regex_or_array("abc", [qr/ab./, "abd"]); # -> 1
This routine can be used to match an item against a regex or a list of
strings/regexes, e.g. when matching against an ACL.

Since the smartmatch ("~~") operator can already match against a list of strings or regexes, this function is currently basically equivalent to:

 if (ref($haystack) eq 'ARRAY') {
     return $needle ~~ @$haystack;
 } else {
     return $needle =~ /$haystack/;
 }

Arguments ('*' denotes required arguments):

  • haystack* => re|str|array[re|str]
  • needle* => str

Return value: (any)

split_array($str_or_re, \@array[, $limit]) => LIST

Like the "split()" builtin Perl function, but applies on an array instead of a scalar. It loosely follows the "split()" semantic, with some exceptions.

replace_array_content($aryref, @elems) => $aryref

Replace elements in <$aryref> with @elems. Return $aryref. Do not create a new arrayref object (i.e. it is different from: "$aryref = ["new", "content"]").

Do not use this function. In Perl you can just use: "splice(@$aryref, 0, length(@$aryref), @elems)" or even easier: "@$aryref = @elems". I put the function here for reminder.

HOMEPAGE

Please visit the project's homepage at <https://metacpan.org/release/SHARYANTO-Utils>.

SOURCE

Source repository is at <https://github.com/perlancar/perl-SHARYANTO-Utils>.

BUGS

Please report any bugs or feature requests on the bugtracker website <https://rt.cpan.org/Public/Dist/Display.html?Name=SHARYANTO-Utils>

When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.

AUTHOR

perlancar <[email protected]>

COPYRIGHT AND LICENSE

This software is copyright (c) 2015 by [email protected]

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.