Eclipse Community Forums: TMF (Xtext) » Keywords getting noticed where they shouldn't

Home

Home » Modeling » TMF (Xtext) » Keywords getting noticed where they shouldn't

Keywords getting noticed where they shouldn't [message #1699566]

Thu, 25 June 2015 03:47

Eclipse User

So I have this grammar:

http://pastebin.com/z7VNwLJA

My problem is that when I for example want to write

 Bob -> Alice : create a new relation

when running my DSL,

It somehow picks up on the "create" keyword from the

ParticipantCreation:
        'create' ID
;

rule.

How would I go about preventing this?

Thanks!

[Updated on: Thu, 25 June 2015 03:47] by Moderator

Re: Keywords getting noticed where they shouldn't [message #1699575 is a reply to message #1699566]

Thu, 25 June 2015 04:24

Eclipse User

am not sure if i understand your problem. where is your crossRef

yyy=[YYY] is short for yyy=[YYY|ID]
ID does not allow keywords.

introduce a datatyperule

MyID: ID | "keyword";
yyy=[YYY|MyID]

or

zzz=MyID

Re: Keywords getting noticed where they shouldn't [message #1699579 is a reply to message #1699575]

Thu, 25 June 2015 04:38

Eclipse User

I might have used the wrong vocabulary. What I ment was this:

I want to be able to write

Alice -> Bob :

Followed by any number of characters. As such:

Alice -> Bob : any number of characters

But as soon as I put a word that is being used in any other rule, like 'create' from the

ParticipantCreation:
	'create' ID
;

rule or 'hide' from the

Hidefootbox:
	'hide' 'footbox'
;

rule, I am getting an error from my editor, like so:

This works:

While this does not:

Re: Keywords getting noticed where they shouldn't [message #1699604 is a reply to message #1699579]

Thu, 25 June 2015 06:28

Eclipse User

and where is the grammar for this has create in it

Re: Keywords getting noticed where they shouldn't [message #1699611 is a reply to message #1699604]

Thu, 25 June 2015 06:56

Eclipse User

Oh right, forgot to update the pastebin. Doh!

This is the updated one: http://pastebin.com/3KXNgBJ6

With the rule

Arrow:
        name+=ID SEQUENCE name+=ID (':' (ID)*)?
;

and related terminal:

terminal SEQUENCE : '->'

Re: Keywords getting noticed where they shouldn't [message #1699613 is a reply to message #1699611]

Thu, 25 June 2015 07:00

Eclipse User

as said

Arrow:
name+=ID SEQUENCE name+=MyID (':' (name+=MyID)*)?
;

[Updated on: Thu, 25 June 2015 07:00] by Moderator

Previous Topic:	How to pass a function as a parameter in Xtend?
Next Topic:	import declaration does not work

Goto Forum:

-=] Back to Top [=-

Current Time: Sun Jul 20 02:37:37 EDT 2025

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter