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DevBoost / EMFText

EMFText is an Eclipse plug-in that allows you to define text syntax for languages described by an Ecore metamodel. EMFText enables developers to define textual Domain Specific Languages quickly and without the need to learn new technologies and concepts.
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Use ANTLR 4.0 #17

Open lschuetze opened 11 years ago

lschuetze commented 11 years ago

Hello, ANTLR 4.0 has been released January 22, 2013. Maybe newer versions of EMFText will use this new version of ANTLR?

mirkoseifert commented 11 years ago

The antlr-4.0.tar.gz is already on my desktop :)

We will certainly integrate the new ANTLR release, but you should not expect big differences. There might be some performance improvements, but since we've already patched the previous ANTLR release to run faster, I'd not expect much better speed. Nonetheless, we'll see what happens.

I'll label this issue as 'enhancement'.

lschuetze commented 11 years ago

I was more interested in the features @parrt promised in his "Why do we need ANTLR v4?" : "Honey Badger takes any grammar that you give it; it just doesn't give a damn."

mirkoseifert commented 11 years ago

Well, I don't think we can benefit from the honey badger mode very much. Since indirect left recursion is still a problem, most grammars will still need a rewrite (or use the beloved @Operator feature of EMFText). I do however like the external visitors. I thought of separating the tree construction from the parser code for quite some time and now ANTLR seems to provide this out of the box. But, we'll probably see decreased performance and we must check whether it is a problem or not.

If you like to experiment with ANTLR 4 feel free to patch EMFText. I can give you some hints where to start if needed.

timeraider4u commented 8 years ago

Has there been any progress yet? It seems that ANTLR3 is not longer maintained while ANTLR4 receives active contributions...

mirkoseifert commented 8 years ago

There is a student working on this, but as far as I know his thesis is not finished yet and I did not receive a pull request.

timeraider4u commented 8 years ago

Okay, thank you for this update. Looking forward to read any news...