[TYPO3-english] realurl - non-ASCII char in path not allowed?

[Andreas Kiessling]

Hi,

i was asked, why an & is removed from the pagepath (news title) and not 
converted to %26. (currently running realurl 1.8.1, setup is copied from 
http://typo3.org/extensions/repository/view/tt_news/current/info/res%252FrealUrl_example_setup.txt/ 
, // news articles and searchwords)

According to the documentation, only ascii characters are allowed, or 
unicode letters in 1.9 (with option enableAllUnicodeLetters).

After adding & to the range of allowed chars in lookUp_cleanAlias, all & 
got replaced with %26 in the url, so the url resulted in the desired
article/testnews-with-%26-in-title/

The entry in tx_realurl_uniqalias for value_alias is 
"testnews-with-&-in-title", and since all path parts are decoded in 
decodeSpURL_doDecode with rawurldecode, the url turns to the matching 
entry and the resulting link seems to work just fine.

Am i missing any other problem here? I did not find an explanation, why 
other chars are not allowed, only that they are stripped no matter what, 
even if everything goes through rawurlencode/rawurldecode.

Regards,
Andreas