Hello Sébastien,
As I posted in previously, it is working properly with my Notepad++ v6.7.5, which corresponds to the screenshot (and it is also working with another computer which has Notepad++ v6.5.1).
I tried again from scratch: I re-installed the software and imported my last file
UDL_Telemac_v7p0_v2.xml and tried with the cas file: t2d_bumpcri.cas.
I could not reproduce your problem, except by importing the first xml file posted by j.lhomme. Therefore I do not know where it can come from because it seems we have the same software with the same configuration... Has someone else the same problem?
If a quotation mark is not recognized as belonging to a keyword, the software gets confused because it also tries to detect string delimiters.
It is possible to turn off this, to avoid having the following keywords wrongly hightlighted.
For this, go to the corresponding settings:
Language > Define your language > (select a language) > Switch to tab "Operators & Delimiters" and remove Delemiter style 1.
Regards,
Luc