User talk:Jo-lieang

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Hello, Jo-lieang, and welcome to Wikipedia! I hope you like the place and decide to stay. Here are some pages you might find helpful:

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I hope you enjoy editing here and being a Wikipedian! Please sign your name on talk pages using four tildes (~~~~); this will automatically produce your name and the date. If you need help, please see our help pages, and if you can't find what you are looking for there, please feel free to ask me on my talk page or place {{Help me}} on this page and someone will drop by to help. Again, welcome! Randykitty (talk) 16:44, 27 February 2023 (UTC)[reply]

Abstract machines material

Hi, I saw your edits on Meta-circular evaluator and I have mixed feelings about them. On the one hand it's interesting material, on the other hand, I checked Danvy's dissertation and the other sources and they don't talk about meta-circular evaluators at all. So it's an instance of WP:COATRACK and not really the right place. What do you think about moving the material to Abstract machine#Functional programming languages? I realize the current structure of that article isn't really accommodating to the material, but at least it's the right article. Mathnerd314159 (talk) 06:05, 9 March 2023 (UTC)[reply]

Hi, thanks for your message.

The opening two sentences of the page are:

> In computing, a meta-circular evaluator (MCE) or meta-circular interpreter (MCI) is an interpreter which defines each feature of the interpreted language using a similar facility of the interpreter's host language.

> For example, interpreting a lambda application may be implemented using function application.

Then the origin of the term "meta-circular" is stated (it is due to Reynolds).

Then the two last introductory sentences of the section "Self-interpreters" are:

> A self-interpreter will provide a circular, vacuous definition of most language constructs and thus provides little insight into the interpreted language's semantics, for example evaluation strategy.

> Addressing these issues produces the more general notion of a "definitional interpreter".

The new section both substantiates and exemplifies the points above:

the code of a self-interpreter for a lambda-language is stated, where syntactic functions are defined as semantic functions and syntactic applications are defined as semantic applications
the point about the evaluation strategy is spelled out
how Reynolds solved these issues is also reviewed

The section concludes on how self-interpreters are not centrally isolated at all.

They are at the center of computing in that the three most famous abstract machines for the lambda-calculus can be derived from self-interpreters.

(And for the CEK machine, "can be" is actually "has been", in Reynolds's paper.)

Danvy's dissertation prominently refers to Reynolds and to Definitional Interpreters, and his earlier work, e.g., on reflective towers ("Intensions and Extensions in a Reflective Tower", 1988) is all about meta-circularity and self-interpreters.

Conclusion:

Danvy's dissertation builds on Reynolds's paper, where the term "metacircular" was coined.

The new section substantiates and exemplifies the general points made earlier in the page.

It also illustrates a significance of self-interpreters that was not addressed in the page, namely that significant things can be derived from them.

So this section should stay in this page, and it is now written from scratch, using OCaml rather than Standard ML.

Thanks again for your message. Jo-lieang (talk) 06:46, 16 March 2023 (UTC)[reply]

Wikipedia and copyright

Hello Jo-lieang! Your additions to Meta-circular evaluator have been removed in whole or in part, as they appear to have added copyrighted content without evidence that the source material is in the public domain or has been released by its owner or legal agent under a suitably-free and compatible copyright license. (To request such a release, see Wikipedia:Requesting copyright permission.) While we appreciate your contributions to Wikipedia, there are certain things you must keep in mind about using information from sources to avoid copyright and plagiarism issues.

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It's very important that contributors understand and follow these practices, as policy requires that people who persistently do not must be blocked from editing. If you have any questions about this, please ask them here on this page, or leave a message on my talk page. Thank you. — Diannaa (talk) 01:29, 10 March 2023 (UTC)[reply]

Hello Diannaa. Thanks for your message. Your point is very well taken, and the additions have been re-written from scratch. Thank you again. Jo-lieang (talk) 06:54, 16 March 2023 (UTC)[reply]

Your submission at Articles for creation: Refocusing (semantics) has been accepted

Refocusing (semantics), which you submitted to Articles for creation, has been created.

Congratulations, and thank you for helping expand the scope of Wikipedia! We hope you will continue making quality contributions.

The article has been assessed as C-Class, which is recorded on its talk page. This is a great rating for a new article, and places it among the top 21% of accepted submissions — kudos to you! You may like to take a look at the grading scheme to see how you can improve the article.

Since you have made at least 10 edits over more than four days, you can now create articles yourself without posting a request. However, you may continue submitting work to Articles for creation if you prefer.

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Thanks again, and happy editing!

Stuartyeates (talk) 19:30, 10 May 2023 (UTC)[reply]