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Gisle Aas


uf_urlstr - Expand URL using heuristics


 use URI::Heuristic qw(uf_urlstr);
 $url = uf_urlstr("perl");             # http://www.perl.com
 $url = uf_urlstr("www.sol.no/sol");   # http://www.sol.no/no
 $url = uf_urlstr("aas");              # http://www.aas.no
 $url = uf_urlstr("ftp.funet.fi");     # ftp://ftp.funet.fi
 $url = uf_urlstr("/etc/passwd");      # file:/etc/passwd


This module provide functions that expand strings into real URLs using some (random) heuristics. Already expanded URLs are not modified and are returned unchanged.

The following functions are provided:


The uf_urlstr() function will try to make the string passed as argument into a proper absolute URL string. The "uf_" prefix stands for "User Friendly".


This functions work the same way as uf_urlstr() but it will return a URI::URL object.


If the hostname portion of a URL does not contain any dots, then centain qualified guesses will be made. These guesses are governed be the following two environment variables.


This is 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.


Contain a space separated list of URL patterns to try. The string "ACME" is 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"

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 1997, Gisle Aas

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