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Full Discussion: What is a function exactly
Top Forums UNIX for Dummies Questions & Answers What is a function exactly Post 302346400 by Radar on Friday 21st of August 2009 07:41:20 PM
Old 08-21-2009
A function is just a routine that can be called multiple times within the same program or script in this case.

Quote:
Like "real" programming languages, Bash has functions, though in a somewhat limited implementation. A function is a subroutine, a code block that implements a set of operations, a "black box" that performs a specified task. Wherever there is repetitive code, when a task repeats with only slight variations in procedure, then consider using a function.
Advanced Bash Scripting Guide
 

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Mojo::URL(3pm)						User Contributed Perl Documentation					    Mojo::URL(3pm)

NAME
Mojo::URL - Uniform Resource Locator SYNOPSIS
use Mojo::URL; # Parse my $url = Mojo::URL->new('http://sri:foobar@kraih.com:3000/foo/bar?foo=bar#23'); say $url->scheme; say $url->userinfo; say $url->host; say $url->port; say $url->path; say $url->query; say $url->fragment; # Build my $url = Mojo::URL->new; $url->scheme('http'); $url->userinfo('sri:foobar'); $url->host('kraih.com'); $url->port(3000); $url->path('/foo/bar'); $url->path('baz'); $url->query->param(foo => 'bar'); $url->fragment(23); say $url; DESCRIPTION
Mojo::URL implements a subset of RFC 3986 and RFC 3987 for Uniform Resource Locators with support for IDNA and IRIs. ATTRIBUTES
Mojo::URL implements the following attributes. "authority" my $authority = $url->authority; $url = $url->authority('root:pass%3Bw0rd@localhost:8080'); Authority part of this URL. "base" my $base = $url->base; $url = $url->base(Mojo::URL->new); Base of this URL. "fragment" my $fragment = $url->fragment; $url = $url->fragment('foo'); Fragment part of this URL. "host" my $host = $url->host; $url = $url->host('127.0.0.1'); Host part of this URL. "port" my $port = $url->port; $url = $url->port(8080); Port part of this URL. "scheme" my $scheme = $url->scheme; $url = $url->scheme('http'); Scheme part of this URL. "userinfo" my $userinfo = $url->userinfo; $url = $url->userinfo('root:pass%3Bw0rd'); Userinfo part of this URL. METHODS
Mojo::URL inherits all methods from Mojo::Base and implements the following new ones. "new" my $url = Mojo::URL->new; my $url = Mojo::URL->new('http://127.0.0.1:3000/foo?f=b&baz=2#foo'); Construct a new Mojo::URL object. "clone" my $url2 = $url->clone; Clone this URL. "ihost" my $ihost = $url->ihost; $url = $url->ihost('xn--bcher-kva.ch'); Host part of this URL in punycode format. # "xn--da5b0n.net" Mojo::URL->new('http://X.net')->ihost; "is_abs" my $success = $url->is_abs; Check if URL is absolute. "parse" $url = $url->parse('http://127.0.0.1:3000/foo/bar?fo=o&baz=23#foo'); Parse URL. "path" my $path = $url->path; $url = $url->path('/foo/bar'); $url = $url->path('foo/bar'); $url = $url->path(Mojo::Path->new); Path part of this URL, relative paths will be appended to the existing path, defaults to a Mojo::Path object. # "http://mojolicio.us/DOM/HTML" Mojo::URL->new('http://mojolicio.us/perldoc/Mojo')->path('/DOM/HTML'); # "http://mojolicio.us/perldoc/DOM/HTML" Mojo::URL->new('http://mojolicio.us/perldoc/Mojo')->path('DOM/HTML'); # "http://mojolicio.us/perldoc/Mojo/DOM/HTML" Mojo::URL->new('http://mojolicio.us/perldoc/Mojo/')->path('DOM/HTML'); "query" my $query = $url->query; $url = $url->query(replace => 'with'); $url = $url->query([merge => 'with']); $url = $url->query({append => 'to'}); $url = $url->query(Mojo::Parameters->new); Query part of this URL, defaults to a Mojo::Parameters object. # "2" Mojo::URL->new('http://mojolicio.us?a=1&b=2')->query->param('b'); # "http://mojolicio.us?a=2&c=3" Mojo::URL->new('http://mojolicio.us?a=1&b=2')->query(a => 2, c => 3); # "http://mojolicio.us?a=2&b=2&c=3" Mojo::URL->new('http://mojolicio.us?a=1&b=2')->query([a => 2, c => 3]); # "http://mojolicio.us?b=2" Mojo::URL->new('http://mojolicio.us?a=1&b=2')->query([a => undef]); # "http://mojolicio.us?a=1&b=2&a=2&c=3" Mojo::URL->new('http://mojolicio.us?a=1&b=2')->query({a => 2, c => 3}); "to_abs" my $abs = $url->to_abs; my $abs = $url->to_abs(Mojo::URL->new('http://kraih.com/foo')); Clone relative URL and turn it into an absolute one. "to_rel" my $rel = $url->to_rel; my $rel = $url->to_rel(Mojo::URL->new('http://kraih.com/foo')); Clone absolute URL and turn it into a relative one. "to_string" my $string = $url->to_string; Turn URL into a string. SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>. perl v5.14.2 2012-09-05 Mojo::URL(3pm)
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