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Hello.
I am trying to follow Sample 06 (Project06Server) then I came around UrlDecodeDouble. What does it do and the other UrlDecode* functions? What is done with the parameters? Sorry, can't find the answer in the docs (or don't understand).
TIA. jeffp
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It may be used to directly extract an Url encoded parameter.
https://synopse.info/files/html/Synopse … #TITLE_343
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Thank you for your reply, ab.
I have actually read the documentation entry for URLDecodeDouble.
But the explanation is not enough for me, sorry.
function UrlDecodeDouble(U: PUTF8Char; const Upper: RawUTF8; var Value: double; Next: PPUTF8Char=nil): boolean;
U = the URL passed
Upper = Upper of the target parameter? Why?
Value = stores the double value
Next = this is not obvious to me
I struggle to interpret the use of Next here.
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Upper = Upper of the target parameter? Why?
Because it's faster, reduces the time spent in the lookup table comparing chars.
Next = this is not obvious to me
Moves the string char pointer to the next to be decoded value, this is again performance benefit so it doesn't have to re-scan the entire URL string every time you call UrlDecode functions.
Example:
URL : user=Peter&password=test
if UrlDecodeValue(U, 'USER=', LUser, @U) and UrlDecodeValue(U, 'PASSWORD=', LPassword) then
Last edited by pvn0 (2021-08-03 11:24:38)
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If you are confused by those low-level methods, rather use the high-level Input methods of the request execution context.
Do you happen to have an example for that, please?
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