bug#12244: [patch] URI encoding bugs

[Ian Price]

Hi,

There are two bugs in the current uri-encode procedure in (web
uri).

Firstly, if you have an octet less than 16 it only gets encoded to %
HEXDIGIT instead of % HEXDIGIT HEXDIGIT.

scheme@(guile−user)> (uri-encode "foo\nbar")
$30 = "foo%abar"

Secondly, if you have a string with no unreserved characters, nothing
gets encoded.
scheme@(guile−user)> (uri-encode "<>\\^")
$31 = "<>\\∧"
scheme@(guile−user)> (uri-encode "<>\\^a")
$32 = "%3c%3e%5c%5ea"

Patches attached. Cheers,

-- 
Ian Price -- shift-reset.com

"Programming is like pinball. The reward for doing it well is
the opportunity to do it again" - from "The Wizardy Compiled"

0001-Fix-uri-encoding-for-octets-0-15.patch
Description: octets 0-15 patch

0002-Fix-uri-encoding-for-strings-with-no-unreserved-char.patch
Description: no unreserved chars patch