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URI::Heuristic(3pm)   User Contributed Perl Documentation  URI::Heuristic(3pm)



NAME
       URI::Heuristic - Expand URI using heuristics

SYNOPSIS
        use URI::Heuristic qw(uf_uristr);
        $u = uf_uristr("perl");             # http://www.perl.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 modi-
       fied 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 vol-
           umes 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 cer-
       tain qualified guesses are made.  These guesses are governed by the
       following two 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.

       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 v5.8.8                       2004-01-14               URI::Heuristic(3pm)