1URI::Heuristic(3)     User Contributed Perl Documentation    URI::Heuristic(3)
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NAME

6       URI::Heuristic - Expand URI using heuristics
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SYNOPSIS

9        use URI::Heuristic qw(uf_uristr);
10        $u = uf_uristr("example");          # http://www.example.com
11        $u = uf_uristr("www.sol.no/sol");   # http://www.sol.no/sol
12        $u = uf_uristr("aas");              # http://www.aas.no
13        $u = uf_uristr("ftp.funet.fi");     # ftp://ftp.funet.fi
14        $u = uf_uristr("/etc/passwd");      # file:/etc/passwd
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DESCRIPTION

17       This module provides functions that expand strings into real absolute
18       URIs using some built-in heuristics.  Strings that already represent
19       absolute URIs (i.e. that start with a "scheme:" part) are never
20       modified and are returned unchanged.  The main use of these functions
21       is to allow abbreviated URIs similar to what many web browsers allow
22       for URIs typed in by the user.
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24       The following functions are provided:
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26       uf_uristr($str)
27           Tries to make the argument string into a proper absolute URI
28           string.  The "uf_" prefix stands for "User Friendly".  Under MacOS,
29           it assumes that any string with a common URL scheme (http, ftp,
30           etc.) is a URL rather than a local path.  So don't name your
31           volumes after common URL schemes and expect uf_uristr() to
32           construct valid file: URL's on those volumes for you, because it
33           won't.
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35       uf_uri($str)
36           Works the same way as uf_uristr() but returns a "URI" object.
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ENVIRONMENT

39       If the hostname portion of a URI does not contain any dots, then
40       certain qualified guesses are made.  These guesses are governed by the
41       following environment variables:
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43       COUNTRY   The two-letter country code (ISO 3166) for your location.  If
44                 the domain name of your host ends with two letters, then it
45                 is taken to be the default country. See also Locale::Country.
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47       HTTP_ACCEPT_LANGUAGE, LC_ALL, LANG
48                 If COUNTRY is not set, these standard environment variables
49                 are examined and country (not language) information possibly
50                 found in them is used as the default country.
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52       URL_GUESS_PATTERN
53                 Contains a space-separated list of URL patterns to try.  The
54                 string "ACME" is for some reason used as a placeholder for
55                 the host name in the URL provided.  Example:
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57                  URL_GUESS_PATTERN="www.ACME.no www.ACME.se www.ACME.com"
58                  export URL_GUESS_PATTERN
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60                 Specifying URL_GUESS_PATTERN disables any guessing rules
61                 based on country.  An empty URL_GUESS_PATTERN disables any
62                 guessing that involves host name lookups.
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65       Copyright 1997-1998, Gisle Aas
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67       This library is free software; you can redistribute it and/or modify it
68       under the same terms as Perl itself.
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72perl v5.36.0                      2023-01-20                 URI::Heuristic(3)
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