[TYPO3-core] RFC Bug #10629: class and title parameters of typolinks get broken

[Stanislas Rolland]

This is a retitled and revised SVN patch request.

Type:
Bugfix

Problems:

1. link wizard: if the title parameter contains whitespaces and you try 
to update the link with the link wizard, anything following the first 
whitespace of the title is lost;

2. neither link wizard nor RTE transformation honour multiple classes on 
class attribute of TYPO3 link tag or class parameter of typolink;

3. t3lib_div::unQuoteFilenames: this function used by RTE transformation 
and typolink FE rendering is working by accident:

3a. if a parameter of the typolink is quoted but does not contain a 
space, the output of the function is erratic; any quoted parameter that 
does not contain a space will make the function produce wrong results;

3b. if a parameter is quoted and contains spaces, the returned array 
contains gaps, and typolink rendering/transformation fails: parts of the 
title attribute may be forgotten; this may well impact other users of 
the function that expect a specific number/order of parameters.

4. The link wizard uses t3lib_trimExplode instead of 
t3lib_div::unQuoteFilenames and therefore breaks any current title or 
list of classes.

Solution:
1. Fix t3lib_div::unQuoteFilenames.

2. link wizard: use t3lib_div::unQuoteFilenames.

3. In link wizard and RTE transformation: wrap the class parameter with 
quotes if it contains whitespaces.

Bugtracker references:
http://bugs.typo3.org/view.php?id=10629
http://bugs.typo3.org/view.php?id=10349

Branches:
trunk

Regards,
Stanislas
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