Eclipse Community Forums: TMF (Xtext) » Highlighting Issues with related keyword varieties

Help

Home

Home » Modeling » TMF (Xtext) » Highlighting Issues with related keyword varieties

Show: Today's Messages :: Show Polls :: Message Navigator

Highlighting Issues with related keyword varieties [message #1733926]

Thu, 02 June 2016 09:34

Jonathan L.

Messages: 24
Registered: May 2016

Junior Member

Hi,

I got a problem with the highlighting of the following rule:

Par:
	( 'par' | 'par/and' | 'par/or' ) 'do' 
		block+=Block 
		('with' block+=Block)+
	'end'
;

If I place the keywords via content-assist there are no problems and the highlighting works fine.
But there are the following problems:

If I type the different keywords manually they will not get highlighted resp. only the part after the '/' will
When I write 'par' this will get highlighted; If I then add '/and' or '/or' highlighting get off and even if I delete back to 'par' it will not highlight.

When the Keywords are not highlighted and I change something in the File before this place they will get highlighted again. The same happens if I close and reopen the file.

I figured out that this problem only occures when there are more than two alternatives.
So if I reduce to ( 'par' | 'par/and' ) everything works fine.

Can this get fixed without implementing an extra lexial highlighting?

Report message to a moderator

Re: Highlighting Issues with related keyword varieties [message #1733928 is a reply to message #1733926]

Thu, 02 June 2016 09:41

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

can you share a complete grammar reproducing the problem

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: Highlighting Issues with related keyword varieties [message #1733929 is a reply to message #1733928]

Thu, 02 June 2016 09:57

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

p.s. can you please file a bug for that

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

Report message to a moderator

Re: Highlighting Issues with related keyword varieties [message #1733930 is a reply to message #1733928]

Thu, 02 June 2016 09:59

Jonathan L.

Messages: 24
Registered: May 2016

Junior Member

grammar org.xtext.example.mydsl.MyDsl with org.eclipse.xtext.common.Terminals

generate myDsl "http://www.xtext.org/example/mydsl/MyDsl"

Root:
	statements+=Statement*;

Statement:
	('par' | 'par/and' | 'par/or') 
	'do' block=Block 'end'
;

Block:
	statements+=Statement*
;

The problem only occurs when there is a special character as seperator.

Report message to a moderator