Yes, it looks so. UE gets a little bit confused and the block comment highlighting fails.
You have 3 options now:
1) Send a feature request email to IDM support and ask for support of identical block comment on/off strings.
2) Adapt your comment writing style to the capabilities of UE and write for example always @> at start of a block comment and <@ at the end of a block comment and use these 2 strings in the wordfile too.
3) If your language does not support multi-line strings, but normal strings with "..." or '?' within a line only, you can use the string highlighting feature as block comment highlighting and highlight the strings with marker characters.
You can add additional delimiter characters. I have written here just the 5 characters you need absolutely.
Disadvantages: Code folding on block comments is not possible with this workaround and an escape character for strings like "this is a double quote \" in a string" cannot be used too.
If the language is not a non-puplic internal company language, can you post the name of the language?
Maybe an other user needs it also and uses the forum search for the answer of the question: "How to setup the wordfile to highlight the block comments of language ??? correctly?"
Best regards from an UC/UE/UES for Windows user from Austria
Thanks very much for the reply. It's an internal company language, but it resembles Algol 68 - http://en.wikipedia.org/wiki/ALGOL_68 - which also uses the same symbol to start and end comments, but not @ in that case.
We never use multi-line strings, so your method 3) works brilliantly, thank you. I don't fully understand how it works - I've only just started using UltraEdit - but it does, so I can carry on trying UltraEdit.