On Aug 31, 2006, at 6:54 AM, Craig A. Finseth wrote:
...
To escape an non-alphanumeric character, you are suppose to use the
"%" symbol and add the Hexadecimal value. For example, instead of
seeing the space character in an URL, you would see it encoded with
the sequence "%20".
Actually, you can escape a space by using the "+" character.
The RFC 1738 (December 1994) spec formats space characters as %20,
and even though a lot of RFC 1738 is obsolete the %20 encoding for
space still remains popular. Encoding spaces as "+" is an option,
but I think that %20 is more universally compatible since a lot of
UNIX programs prefer the older format.
FYI, the latest spec is RFC 3986:
http://tools.ietf.org/html/rfc3986
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