[mickduprez]

The comment about C was more to do with perceived speed issues with Lisp but for most situations, Lisps that compile to native code are more than fast enough for general application programming.

The point of the article rings true, languages like C/C++ and those based on them do shepherd you into how they work and if you're doing low level programming for drivers etc then they work well, that's their domain (and you wouldn't need half of C++ if it stayed in that arena!). When trying to 'express' or abstract a problem then you have to shoehorn your thoughts into the language.

>> being able to dsl, you have to ask how often is that useful? what happens when 10 dsls are built into a code base and you hire a new person? how hard is it to make sense of everything?

Probably not as hard as trying to decipher swaths of source code in a language that doesn't make it easy to create the DSL's, instead you end up with API's and code that tries to hide the ugliness of being pushed around by the language.

With Lisp you are not so much creating API's or DSL's, you're extending the language to suit the problem, not waiting for the language to catch up. This is freedom!

cheers.

[pdimitar]

This is freedom and it does enable creativity and can increase productivity indeed. But I've also seen it hurt maintainability as well: the original programmer moved on and now nobody can decipher their genius DSL.

[mickduprez]

That's a shame, you hear this a lot about lisp code and I think the problem is that the people who really grok lisp and write 'genius' code can be a bit blase about documenting their code.

Simple documentation for standard function definitions is fine but macros definitely need special attention. Some say macros are over-used but I think it's more of a case they're under-documented. Even if the name of the macro gives you a fair idea, documenting how it works and what is generates with examples goes a long way to deciphering them for maintenance. cheers.

[pdimitar]

Absolutely. In fact I am writing a library in Elixir currently (for internal company usage) that mandates generating boilerplate to help a user project. It's a really fine balance to (a) not being too clever by making the macro code still readable and (b) documenting the intent of the macro, its input and output, and why it is actually useful.

Many people are like "I'll document it later" and it just almost never happens. Which is, as you said, a shame.