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[Xtext 2.2.1] Simple conditional formatting? [message #819095]

Mon, 12 March 2012 13:39

Alex Ruiz

Messages: 103
Registered: March 2011

Senior Member

Greetings,

As part of formatting, I'd like to group all the imports in a file. For example:

import "abc.proto";

import "xyz.proto";
message Person {
}

can be formatted into:

import "abc.proto";
import "xyz.proto";

message Person {
}

I've been trying to find a way to say "if next element is not an import, add an extra line break". Is it possible with the default formatting infrastructure in Xtext?

I've been looking everywhere and I haven't found anything. I also thought that the method 'getMatcherProvider' in 'AbstractDeclarativeFormatter' would help, but I couldn't figure out if that would be the case.

As always, any help will be greatly appreciated Smile

Cheers!
-Alex

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Re: [Xtext 2.2.1] Simple conditional formatting? [message #819916 is a reply to message #819095]

Tue, 13 March 2012 13:43

Alex Ruiz

Messages: 103
Registered: March 2011

Senior Member

It seems that this should work:

  @Override protected void configureFormatting(FormattingConfig c) {
    ProtobufGrammarAccess g = (ProtobufGrammarAccess) getGrammarAccess();
    c.setLinewrap(2).between(g.getNormalImportRule(), g.getMessageRule());

The problem is that it does nothing. Is this a bug or a misunderstanding of what 'between' should do?

Many thanks!
-Alex

[Updated on: Tue, 13 March 2012 13:44]

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Re: [Xtext 2.2.1] Simple conditional formatting? [message #819971 is a reply to message #819095]

Tue, 13 March 2012 15:05

Alex Ruiz

Messages: 103
Registered: March 2011

Senior Member

(Looks like my reply disappeared. Here it goes again)

It seems that this should work:

  @Override protected void configureFormatting(FormattingConfig c) {
    ProtobufGrammarAccess g = (ProtobufGrammarAccess) getGrammarAccess();
    c.setLinewrap(2).between(g.getNormalImportRule(), g.getMessageRule());

The problem is that it does nothing. Is this a bug or a misunderstanding of what 'between' should do?

Many thanks!
-Alex

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Re: [Xtext 2.2.1] Simple conditional formatting? [message #826291 is a reply to message #819916]

Wed, 21 March 2012 22:41

Alex Ruiz

Messages: 103
Registered: March 2011

Senior Member

Hey guys,

Sorry to bother you again. I've been spending some time debugging and understanding the formatter code, but so far no real progress from my side.

Any thoughts on this issue?

Many thanks!
-Alex

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Re: [Xtext 2.2.1] Simple conditional formatting? [message #827218 is a reply to message #819971]

Fri, 23 March 2012 02:43

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Hi Alex,

yes, this may be a bug - between should be the way to go for your use
case. Did you try to use the root elements of your parser rules in the
between clause?

Regards,
Sebastian
--
Need professional support for Eclipse Modeling?
Go visit: http://xtext.itemis.com

Am 13.03.12 11:05, schrieb Alex Ruiz:
> (Looks like my reply disappeared. Here it goes again)
> It seems that this should work:
>
>
> @Override protected void configureFormatting(FormattingConfig c) {
> ProtobufGrammarAccess g = (ProtobufGrammarAccess) getGrammarAccess();
> c.setLinewrap(2).between(g.getNormalImportRule(), g.getMessageRule());
>
>
>
> The problem is that it does nothing. Is this a bug or a misunderstanding
> of what 'between' should do?
>
> Many thanks!
> -Alex

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