Info about OMeta/2

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Info about OMeta/2

jsarkela
Hi,

I’ve been experimenting with OMeta/2. It’s a lot of fun, but there is a reference to the undefined method OMeta2Compiler>>from:class:context:notifying. I implemented this as an empty method and things appear to be working. Could anyone enlighten me as to the intention of this message and why the reference to it exists in the code base?

John Sarkela

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Re: Info about OMeta/2

Edgar J. De Cleene-3
I suggest you look in Cuis list archives
http://cuis-smalltalk.org/mailman/listinfo/cuis-dev_cuis-smalltalk.org

Look all Phil say and do.
By the way, what Squeak version use you ?
Must made time for re take Ometa, could share any are you doing ?

Edgar
@morplenauta

> On May 16, 2017, at 09:33, JOHN SARKELA <[hidden email]> wrote:
>
> Hi,
>
> I’ve been experimenting with OMeta/2. It’s a lot of fun, but there is a reference to the undefined method OMeta2Compiler>>from:class:context:notifying. I implemented this as an empty method and things appear to be working. Could anyone enlighten me as to the intention of this message and why the reference to it exists in the code base?
>
> John Sarkela
>


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Re: Info about OMeta/2

jsarkela-2
I like Cuis very much. I’ll check that out.
At the moment, I am using Squeak 5.1 and evaluating OMeta for use in my Principles of Programming Languages class. Nothing of particular interest to share yet.

John

> On May 16, 2017, at 8:42 AM, Edgar De Cleene <[hidden email]> wrote:
>
> I suggest you look in Cuis list archives
> http://cuis-smalltalk.org/mailman/listinfo/cuis-dev_cuis-smalltalk.org
>
> Look all Phil say and do.
> By the way, what Squeak version use you ?
> Must made time for re take Ometa, could share any are you doing ?
>
> Edgar
> @morplenauta
>
>> On May 16, 2017, at 09:33, JOHN SARKELA <[hidden email]> wrote:
>>
>> Hi,
>>
>> I’ve been experimenting with OMeta/2. It’s a lot of fun, but there is a reference to the undefined method OMeta2Compiler>>from:class:context:notifying. I implemented this as an empty method and things appear to be working. Could anyone enlighten me as to the intention of this message and why the reference to it exists in the code base?
>>
>> John Sarkela
>>
>
>


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Re: Info about OMeta/2

Bert Freudenberg
In reply to this post by jsarkela
On Tue, May 16, 2017 at 2:33 PM, JOHN SARKELA <[hidden email]> wrote:
Hi,

I’ve been experimenting with OMeta/2. It’s a lot of fun, but there is a reference to the undefined method OMeta2Compiler>>from:class:context:notifying. I implemented this as an empty method and things appear to be working. Could anyone enlighten me as to the intention of this message and why the reference to it exists in the code base?

​That message used to be implemented in Compiler and got replaced when we factored out the state into CompilationCue as part of the introduction of Environments.​ It's now from:class:notifying:.

​I just tried putting it back as

Compiler>>from: textOrStream class: aClass context: aContext notifying: aRequestor 
"Used by e.g. OMeta2Compiler"
self
setCue: (CompilationCue
source: textOrStream
context: aContext
class: aClass
requestor: aRequestor)
​which works but there are more errors (MNU: OMeta2Compiler>>parseCue:noPattern:ifFail:​) and I don't have time to fix that one ... I guess we need to update the OMeta package.

- Bert - 


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Re: Info about OMeta/2

Hans-Martin Mosner

Yup, that needs some taking care of. I will look into it, but probably not so soon...

Cheers,
Hans-Martin

Am 17. Mai 2017 11:54:54 vorm. schrieb Bert Freudenberg <[hidden email]>:

On Tue, May 16, 2017 at 2:33 PM, JOHN SARKELA <[hidden email]> wrote:
Hi,

I’ve been experimenting with OMeta/2. It’s a lot of fun, but there is a reference to the undefined method OMeta2Compiler>>from:class:context:notifying. I implemented this as an empty method and things appear to be working. Could anyone enlighten me as to the intention of this message and why the reference to it exists in the code base?

​That message used to be implemented in Compiler and got replaced when we factored out the state into CompilationCue as part of the introduction of Environments.​ It's now from:class:notifying:.

​I just tried putting it back as

Compiler>>from: textOrStream class: aClass context: aContext notifying: aRequestor 
"Used by e.g. OMeta2Compiler"
self
setCue: (CompilationCue
source: textOrStream
context: aContext
class: aClass
requestor: aRequestor)
​which works but there are more errors (MNU: OMeta2Compiler>>parseCue:noPattern:ifFail:​) and I don't have time to fix that one ... I guess we need to update the OMeta package.

- Bert - 


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Re: Info about OMeta/2

jsarkela
Thanks Hans-Martin and Bert. As I said, I am just exploring for the time being and I have a hacked a version suitable for those purposes. 

Thanks,
John

On May 17, 2017, at 6:36 AM, Hans-Martin Mosner <[hidden email]> wrote:

Yup, that needs some taking care of. I will look into it, but probably not so soon...

Cheers,
Hans-Martin

Am 17. Mai 2017 11:54:54 vorm. schrieb Bert Freudenberg <[hidden email]>:

On Tue, May 16, 2017 at 2:33 PM, JOHN SARKELA <[hidden email]> wrote:
Hi,

I’ve been experimenting with OMeta/2. It’s a lot of fun, but there is a reference to the undefined method OMeta2Compiler>>from:class:context:notifying. I implemented this as an empty method and things appear to be working. Could anyone enlighten me as to the intention of this message and why the reference to it exists in the code base?

​That message used to be implemented in Compiler and got replaced when we factored out the state into CompilationCue as part of the introduction of Environments.​ It's now from:class:notifying:.

​I just tried putting it back as

Compiler>>from: textOrStream class: aClass context: aContext notifying: aRequestor 
"Used by e.g. OMeta2Compiler"
self
setCue: (CompilationCue
source: textOrStream
context: aContext
class: aClass
requestor: aRequestor)
​which works but there are more errors (MNU: OMeta2Compiler>>parseCue:noPattern:ifFail:​) and I don't have time to fix that one ... I guess we need to update the OMeta package.

- Bert - 




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Re: Info about OMeta/2

Patrick R.
In reply to this post by jsarkela
Hi John,

regarding defining new languages in the Smalltalk image, you might also be interested in Ohm/S and Gramada. Ohm/S is the Squeak/Smalltalk implementation of the successor of OMeta/2, which is called Ohm. It is somewhat different than OMeta as it separates a language definition into a syntax definition (a grammar) and several semantics defined in relation to the grammar rules.

You can get Ohm/S at: https://github.com/hpi-swa/Ohm-S

Additionally, I have developed a development environment for Ohm language definitions called Gramada. It includes tooling to see live results of parses on examples and editors with syntax highlighting and tools to navigate between rules via senders and implementors Further, it includes a parsing debugger and SUnit extensions for grammars. You can see a demo here: https://vimeo.com/180190846

A demo version of the environment can be downloaded here: https://patrickrein.de/gramadaDemo/gramadaDemo.zip .

I am also currently working on creating a stable release which will be linked from https://github.com/HPI-SWA-Lab/Gramada.

Bests
Patrick

________________________________________
From: Squeak-dev <[hidden email]> on behalf of JOHN SARKELA <[hidden email]>
Sent: Tuesday, May 16, 2017 14:33
To: [hidden email]
Subject: [squeak-dev] Info about OMeta/2

Hi,

I’ve been experimenting with OMeta/2. It’s a lot of fun, but there is a reference to the undefined method OMeta2Compiler>>from:class:context:notifying. I implemented this as an empty method and things appear to be working. Could anyone enlighten me as to the intention of this message and why the reference to it exists in the code base?

John Sarkela


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Re: Info about OMeta/2

Edgar J. De Cleene-3

On May 21, 2017, at 15:25, Rein, Patrick <[hidden email]> wrote:

A demo version of the environment can be downloaded here: https://patrickrein.de/gramadaDemo/gramadaDemo.zip .

ERROR 404

Edgar
@morplenauta



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Re: Info about OMeta/2

Patrick R.
Thanks. That was the old URL.

For now it resides at: https://www.patrickrein.de/gramada/gramadaDemo.zip 

Bests
Patrick

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Re: Info about OMeta/2

jsarkela
Many thanks, I will look into this.

Mit besten Grüßen
John

> On May 22, 2017, at 6:29 AM, Rein, Patrick <[hidden email]> wrote:
>
> Thanks. That was the old URL.
>
> For now it resides at: https://www.patrickrein.de/gramada/gramadaDemo.zip 
>
> Bests
> Patrick
>


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Re: Info about OMeta/2

Edgar J. De Cleene-3
In reply to this post by Patrick R.
On 5/22/17, 07:29, "Rein, Patrick" <[hidden email]> wrote:

> Thanks. That was the old URL.

For now it resides
> at: https://www.patrickrein.de/gramada/gramadaDemo.zip 

Bests
Patrick
Very thanks.
Nice work, have a whole world to explore