URI::Heuristic(3) User Contributed Perl Documentation URI::Heuristic(3)
NAME
URI::Heuristic - Expand URI using heuristics
SYNOPSIS
use URI::Heuristic qw(uf_uristr);
$u = uf_uristr("example"); # http://www.example.com
$u = uf_uristr("www.sol.no/sol"); # http://www.sol.no/sol
$u = uf_uristr("aas"); # http://www.aas.no
$u = uf_uristr("ftp.funet.fi"); # ftp://ftp.funet.fi
$u = uf_uristr("/etc/passwd"); # file:/etc/passwd
DESCRIPTION
This module provides functions that expand strings into real absolute
URIs using some built-in heuristics. Strings that already represent
absolute URIs (i.e. that start with a "scheme:" part) are never
modified and are returned unchanged. The main use of these functions
is to allow abbreviated URIs similar to what many web browsers allow
for URIs typed in by the user.
The following functions are provided:
uf_uristr($str)
Tries to make the argument string into a proper absolute URI
string. The "uf_" prefix stands for "User Friendly". Under MacOS,
it assumes that any string with a common URL scheme (http, ftp,
etc.) is a URL rather than a local path. So don't name your
volumes after common URL schemes and expect uf_uristr() to
construct valid file: URL's on those volumes for you, because it
won't.
uf_uri($str)
Works the same way as uf_uristr() but returns a "URI" object.
ENVIRONMENT
If the hostname portion of a URI does not contain any dots, then
certain qualified guesses are made. These guesses are governed by the
following environment variables:
COUNTRY The two-letter country code (ISO 3166) for your location. If
the domain name of your host ends with two letters, then it
is taken to be the default country. See also Locale::Country.
HTTP_ACCEPT_LANGUAGE, LC_ALL, LANG
If COUNTRY is not set, these standard environment variables
are examined and country (not language) information possibly
found in them is used as the default country.
URL_GUESS_PATTERN
Contains a space-separated list of URL patterns to try. The
string "ACME" is for some reason used as a placeholder for
the host name in the URL provided. Example:
URL_GUESS_PATTERN="www.ACME.no www.ACME.se www.ACME.com"
export URL_GUESS_PATTERN
Specifying URL_GUESS_PATTERN disables any guessing rules
based on country. An empty URL_GUESS_PATTERN disables any
guessing that involves host name lookups.
COPYRIGHT
Copyright 1997-1998, Gisle Aas
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
perl v5.30.3 2021-01-29 URI::Heuristic(3)
uri 5.70.0 - Generated Sat Feb 6 18:11:45 CST 2021