on 1/11/01 6:11 AM, LiangTyan Fui at [EMAIL PROTECTED] wrote:
>
> The browser constructs the the following string and pass onto the server:
> http://localhost/cgi-bin/echo.mt?option=1&option=2&option=3
>
> Suppose you are using a split command to parse the query string in the
> echo.mt script:
>
> put $QUERY_STRING into x
> split x by "&" and "="
> put keys(x) into xKeys
>
> you'll get only "option" in xKeys, and x["option"] gives you "3".
>
> Hmm..... should I bug report this?
It's not a bug - split is behaving correctly according to the spec - it's
just that this spec makes it tantalisingly close to a handy parser for URL
strings, but not quite right. But the thing to do is use this as a cue to
define the spec you do want for that purpose, and implement it - eg:
function splitQueryString qs --> array
set the itemdelimiter to "&"
repeat for each item p in qs
put space into char offset("=", p) of p -- or use split in 2.4
put urlDecode(word 1 of p) into k
put urlDecode(word 2 to -1 of p) into v
--
-- may or may not want this, depending on what you're doing
if v = empty then put true into v
--
get formdata[k]
if it <> empty then put it & "," before v
put v into formdata[k]
end repeat
return queryparms
end splitQueryString
This will handle the multi-option case, and is also neater because it's
specialised for handling query strings - so it can do the URLdecoding. If
you had a parallel function that parsed data 'POST'ed instead of sent in the
query string, then you could isolate the encoding issue - call one or other
function, and then either way have an array of parameters and values.
(Note that this implementation has chosen to force every key to have a
value. That's because it relies on empty to indicate that a key hasn't
been defined yet. If there was an atomic test for 'is-a-key' (is there?)
one could use that - or if you really want it, go the extra mile and keep a
second array to show whether a key has been encountered already.)
Ben Rubinstein | Email: [EMAIL PROTECTED]
Cognitive Applications Ltd | Phone: +44 (0)1273-821600
http://www.cogapp.com | Fax : +44 (0)1273-728866
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