Eclipse Community Forums: TMF (Xtext)

Help

Home

Home » Modeling » TMF (Xtext) » Validating a Keyword(custom warnings)

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

Validating a Keyword [message #1740676]

Wed, 17 August 2016 07:51

prateek garg

Messages: 16
Registered: August 2016

Junior Member

Hi,
I have a task to validate the keyword.
Model:
greetings+=Greeting*;

Greeting:
'Hello' name=STRING '!' ;

I want to display a custom warning message if the input is "hello" saying as "hello should be Hello"

Report message to a moderator

Re: Validating a Keyword [message #1740718 is a reply to message #1740676]

Wed, 17 August 2016 18:30

Christian Dietrich

Messages: 14665
Registered: July 2009

Senior Member

is your grammar case insensitive or is it not.

if not, then allow it in your grammar

'Hello' | 'hello'

in both cases:

either assign the keyword to get the value in the validator

helloKeyword=(....)

or use NodeNodelUtils to retrieve the nodes for the Greeting eobject and then iterate the nodes and find the one whose grammar element is the hello keyword

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

Report message to a moderator