On Fri, 1 Mar 2019 at 18:00, Matthias Felleisen <matth...@felleisen.org>
wrote:
>
>
> > On Mar 1, 2019, at 12:05 PM, Stephen De Gabrielle <
> spdegabrie...@gmail.com> wrote:
> >
> > Hi Matthias,
> > (or anyone else who is available to answer :))
> >
> > I'm trying to get my head around the range of possible languages in
> Racket.
> >
> > You got me thinking how many languages seem to have embedded little
> languages.
> > I was wondering how they fit into your categories of languages?
> >
> > 3. The nature of languages ranges from
> > — stand-alone languages with ugly syntax (example: datalog)
> > — #lang stand-alone DSLs (config, scribble)
> >
> > Does '#lang video' fit in this group?
>
> Yes.
>
>
> >
> > — #lang language mixins (s-expr, 2d)
> >
> > Do regular #px""/#rx expressions fit in this category?
>
> I don’t understand how #px is similar to the s-expr or at-expr or 2d #lang
> mixins. I am referring to lines such as #lang at-exp scribble.
[...]
> p.s. In my mind, format and regexp-match (and similar functions) are
> interpreters for programs in DSLs that are written down as strings. That’s
> my opening slides for HtDL (from last year).
The example from Greg Hendershot, below, gave the impression they were like
at-exp and the #2dcond syntax extension seems to fit the same pattern as
#px , but I see what you mean about regex-match and format being
interpreters.
@pregexp{\d\.\d} ; #px"\\d\\.\\d" (from
https://www.greghendershott.com/2015/08/at-expressions.html )
(I do use that trick to make regexp more readable - at-exp is great)
leaving aside my confusion, my goal here is to a page to the racket website
that showcases an selection of languages made with Racket, that is better
than a search of things that define a #lang
*#lang stand-alone languages with non-s-exp syntax* (I'm inclined not to
include 'ugly syntax' on a PR for the racket website)
- Algol 60
- Datalog
- Scratchy
- ProfessorJ (deliberately included as ~30% of job ads in the UK specify
Java)
- Rash: The Reckless Racket Shell
- Riposte
-
*#lang stand-alone DSLs (config?, scribble)*
(I don't know a 'config' lang apart from #lang info)
- Scribble
- Hackett <https://lexi-lambda.github.io/hackett/>
- Heresy <https://docs.racket-lang.org/heresy/>
- Lindenmayer <https://docs.racket-lang.org/lindenmayer/>
- Parenlog <https://docs.racket-lang.org/parenlog/>
- Pie <https://docs.racket-lang.org/pie/>
- Video
*#lang language mixins (s-expr, 2d)*
- #lang s-exp [module]
- #lang 2d racket
- #lang at-exp
*embedded DSLs with mostly coarse-grained interactions with Racket (redex)*
Redex (require redex)
[need to identify another example]
*embedded DSLs with fine-grained interaction with Racket *(the language of
class syntax; syntax-parse: the pattern and templated languages, which
interact via syn-pattern vars)
- (require racket/class)
- syntax-parse
- syntax-case patterns and templates etc.
-
string interpreters
- regexp
- format
Languages with other targets
- Asi64
- Pollen
- Scribble (?)
- Racket-script
Are these good categories?
Kind regards,
Stephen
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