Lisp implementation in sed

#1

Post by inglesp » Fri, Jun 27, 2014, 8:52 PM UTC

Lisp implementation in sed
github.com

Re: Lisp implementation in sed

#2

Post by mseri » Fri, Jun 27, 2014, 10:12 PM UTC

Ahahah. Awesome. There is even an 'awk' version: https://github.com/darius/awklisp

Re: Lisp implementation in sed

#3

Post by bndr » Fri, Jun 27, 2014, 10:12 PM UTC

This is amazing. Just reading the code makes my head hurt, but you implemented a language with it.

Re: Lisp implementation in sed

#4

Post by [deleted] » Fri, Jun 27, 2014, 10:17 PM UTC

[deleted]

Re: Lisp implementation in sed

#5

Post by lengads » Fri, Jun 27, 2014, 10:17 PM UTC

bndr wrote: post #3

This is amazing. Just reading the code makes my head hurt, but you implemented a language with it.

Here, for example, is the implementation of `atom` (I think):

  /(atom /{
    /\[\S\+\]/{
      s/.*/[]/
      bpop_context
    }
    s/.*/t/
    bpop_context
  }

Re: Lisp implementation in sed

#6

Post by abecedarius » Fri, Jun 27, 2014, 10:48 PM UTC

mseri wrote: post #2

Ahahah. Awesome. There is even an 'awk' version: https://github.com/darius/awklisp

I wrote that, and I gotta say sed is a much crazier target.

More sed fun: http://aurelio.net/projects/sedsokoban/

Re: Lisp implementation in sed

#7

Post by sejje » Fri, Jun 27, 2014, 10:54 PM UTC

lengads wrote: post #5

bndr wrote: post #3

This is amazing. Just reading the code makes my head hurt, but you implemented a language with it.

Here, for example, is the implementation of `atom` (I think): /(atom /{ /\[\S\+\]/{ s/.*/[]/ bpop_context } s/.*/t/ bpop_context }

If this was (the only available) programming, I'd quit.

Kudos, I think, to the author. His pain tolerance exceeds mine by a vast amount.

Re: Lisp implementation in sed

#8

Post by breadbox » Fri, Jun 27, 2014, 10:57 PM UTC

abecedarius wrote: post #6

mseri wrote: post #2

Ahahah. Awesome. There is even an 'awk' version: https://github.com/darius/awklisp

I wrote that, and I gotta say sed is a much crazier target. More sed fun: http://aurelio.net/projects/sedsokoban/

Indeed. There are few wide-spread programming languages around any more that lack such things as, say, any form of arithmetic whatsoever.

Re: Lisp implementation in sed

#9

Post by nate_martin » Fri, Jun 27, 2014, 11:13 PM UTC

Would someone mind giving a quick explanation of how this works? I have only used sed to replace text in files and directories. How do people write interpreters and game loops with this unix utility?

Re: Lisp implementation in sed

#10

Post by quotemstr » Fri, Jun 27, 2014, 11:26 PM UTC

sejje wrote: post #7

lengads wrote: post #5

Earlier quoted context omitted.

Here, for example, is the implementation of `atom` (I think): /(atom /{ /\[\S\+\]/{ s/.*/[]/ bpop_context } s/.*/t/ bpop_context }

If this was (the only available) programming, I'd quit. Kudos, I think, to the author. His pain tolerance exceeds mine by a vast amount.

> If this was (the only available) programming, I'd quit.

We started with nothing, remember? Just the bare metal. If this were the only available programming, I'd write an interpreter for a better language.

Never imagine that your current suite of tools is all there is.