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coroutines (was Re: dynamic scoping in Forth in one line of code)

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Paul Rubin <no.email@nospam.invalid> writes:
> Kragen Javier Sitaker <kragen@canonical.org> writes:
>> I think you’ve internalized it sufficiently that it’s not surprising to
>> you, but it was surprising to me when I encountered it a year and a half
>> ago, at which point I’d been programming for 43 years and occasionally
>> programming in Forth for 27 years.  Maybe I'm just a slow learner.
>
> The idea has been in the literature for a long time (it's discussed at
> length in Knuth vol. 1 from 1968),

No, no, I know what coroutines are; I learned about them last millennium
when I read Knuth vol. 1.  My copy has pencil annotations in the margin
expressing my skepticism; but, since then I’ve used Icon generators,
Python generators, Python asyncio, Prolog backtracking, and Lua
“coroutines,” which might more precisely be called “threads”.

What surprised me was the extremely parsimonious mechanism of Van der
Horst’s `co`.

Kragen

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dynamic scoping in Forth in one line of code Kragen Javier Sitaker <kragen@canonical.org> - 2026-08-28 18:04 -0300
  Re: dynamic scoping in Forth in one line of code Paul Rubin <no.email@nospam.invalid> - 2026-08-28 18:12 -0700
    Re: dynamic scoping in Forth in one line of code Kragen Javier Sitaker <kragen@canonical.org> - 2026-08-29 10:50 -0300
  Re: dynamic scoping in Forth in one line of code albert@spenarnc.xs4all.nl - 2026-08-29 12:10 +0200
    Re: dynamic scoping in Forth in one line of code Kragen Javier Sitaker <kragen@canonical.org> - 2026-08-29 11:17 -0300
      Re: dynamic scoping in Forth in one line of code albert@spenarnc.xs4all.nl - 2026-08-30 12:49 +0200
        Re: dynamic scoping in Forth in one line of code Kragen Javier Sitaker <kragen@canonical.org> - 2026-09-01 20:38 -0300
          Re: dynamic scoping in Forth in one line of code Paul Rubin <no.email@nospam.invalid> - 2026-09-01 17:15 -0700
            coroutines (was Re: dynamic scoping in Forth in one line of code) Kragen Javier Sitaker <kragen@canonical.org> - 2026-09-03 20:38 -0300
              Re: coroutines (was Re: dynamic scoping in Forth in one line of code) dxf <dxforth@gmail.com> - 2026-09-04 15:24 +1000
                dynamic scoping in Forth in one line of code (was Re: coroutines) Kragen Javier Sitaker <kragen@canonical.org> - 2026-09-04 13:04 -0300
                Re: dynamic scoping in Forth in one line of code (was Re: coroutines) dxf <dxforth@gmail.com> - 2026-09-05 02:59 +1000

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