URI::Escape - Escape and unescape unsafe characters
use URI::Escape; $safe = uri_escape("10% is enough\n"); $verysafe = uri_escape("foo", "\0-\377"); $str = uri_unescape($safe);
This module provide functions to escape and unescape URI strings. Some characters are regarded as "unsafe" and must be escaped in accordance with RFC 1738. Escaped characters are represented by a triplet consisting of the character "%" followed by two hexadecimal digits. The following functions are provided (and exported by default):
- uri_escape($string, [$unsafe])
This function replaces all unsafe characters in the $string with their escape sequence and return the result.
The uri_escape() function takes an optional second argument that overrides the set of characters that are to be escaped. The set is specified as a string that can be used in a regular expression character class (between [ ]). E.g.:
\x00-\x1f\x7f-\xff # all control and hi-bit characters a-z # all lower case characters ^A-Za-z # everything not a letter
The default set of characters to be escaped is:
Returns a string with all %XX sequences replaced with the actual character.
The module can also export the %escapes hash which contains the mapping from all characters to the corresponding escape code.
Copyright 1995-1997 Gisle Aas.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.