Moose::Meta::Attribute::Native::Trait::String - Helper trait for Str attributes
package MyHomePage; use Moose; has 'text' => ( traits => ['String'], is => 'rw', isa => 'Str', default => q{}, handles => { add_text => 'append', replace_text => 'replace', }, ); my $page = MyHomePage->new(); $page->add_text("foo"); # same as $page->text($page->text . "foo");
This module provides a simple string attribute, to which mutating string operations can be applied more easily (no need to make an lvalue attribute metaclass or use temporary variables). Additional methods are provided for completion.
If your attribute definition does not include any of is, isa, default or handles but does use the String metaclass, then this module applies defaults as in the "SYNOPSIS" above. This allows for a very basic string definition:
String
has 'foo' => (traits => ['String']); $obj->append_foo;
These methods are implemented in Moose::Meta::Attribute::Native::MethodProvider::String. It is important to note that all those methods do in place modification of the value stored in the attribute.
Increments the value stored in this slot using the magical string autoincrement operator. Note that Perl doesn't provide analogous behavior in --, so dec is not available.
--
dec
Append a string, like .=.
.=
Prepend a string.
Performs a regexp substitution ("s" in perlop). There is no way to provide the g flag, but code references will be accepted for the replacement, causing the regex to be modified with a single e. /smxi can be applied using the qr operator.
g
e
/smxi
qr
Like replace but without the replacement. Provided mostly for completeness.
replace
"chop" in perlfunc
"chomp" in perlfunc
Sets the string to the empty string (not the value passed to default).
default
"length" in perlfunc
"substr" in perlfunc. We go to some lengths to match the different functionality based on substr's arity.
substr
See "BUGS" in Moose for details on reporting bugs.
Stevan Little <stevan@iinteractive.com>
Copyright 2007-2009 by Infinity Interactive, Inc.
http://www.iinteractive.com
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
To install Moose, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Moose
CPAN shell
perl -MCPAN -e shell install Moose
For more information on module installation, please visit the detailed CPAN module installation guide.