Talk:LlUnescapeURL

url description and url breakdown

I'm not keen on the url parameter description. It doesn't have to be a valid URL, it doesn't even have to be a url at all. I'm also not keen on the sample url, it's just not obvious how it's applicable with the article. -- Strife ^{(talk|contribs)} 22:03, 25 January 2014 (PST)

I see the point about the description. The sample url was copied from llGetHTTPHeader to llEscapeURL and llUnescapeURL because there was some text about the URL path and query string in llEscapeURL and I thought a reference wouldn't do no harm for those that don't know what it is...yet. -- Kireji Haiku ^{(talk|contribs)} 07:12, 26 January 2014 (PST)

ASCII7

While looking at the above, could the following be better explained?

 "The hexadecimal encoded representation of UTF-8 byte encoding is the only supported means of access to non ASCII7 characters (Unicode characters)."

The word 'encoding' seems to be superfluous. What is the scope of this 'access'? In relation to this function only? Or in LSL in general? Does it perhaps mean that in order to use non ASCII7 characters in any string in LSL you need to write the string using a specific hex representation of those characters and then process the string via llUnescapeURL(). And should there be an example (because by hex representation here I believe we mean %hh and not 0xhhhh) Omei Qunhua 04:37, 26 January 2014 (PST)

It does seem a bit wordy. These functions (both directions) only use UTF-8 byte encoding. That means you can't use UCS-2 (UTF-16) byte pairs or UTF-32 byte quads, or to that matter any other encoding scheme (UTF-EBCDIC, CESU-8). So llEscapeURL will always encode characters via their byte representation in UTF-8 and llUnescapeURL will always decode bytes as if they were UTF-8 (that is all it's trying to say). While this doesn't rule out the possibility of the "%u####" syntax, LL never implemented it. I'm thinking I should maybe write a spec, notes or deepnotes section for this one, as it's easier to describe how it could work then it is to describe what it does (convert input string to byte array and  type pun the array into a string, anything that doesn't pun correctly gets converted to a "?"). -- Strife ^{(talk|contribs)} 15:59, 26 January 2014 (PST)