3 ms·

Run the formatter, and the brace-based mistake is easy to spot too.

by gavinhoward 3y ago

xigoi 3y ago
So what's the point of having braces if you're going to use indentation anyway?
- gavinhoward 3y ago
  To do more things with the source than just compile it.
  - xigoi 3y ago
    And how do braces and semicolons help you with that?
    - gavinhoward 3y ago
      Exactly what I mentioned above: source formatting is just one of the things you can do with braces and not significant whitespace. [1] Also, forget a brace in your program, just one, and the compiler can tell. Forget one indentation? No dice. And while braces can break things too, editor settings can make it much easier to break things with significant whitespace. [2] [3] Also, refactoring. [4] Editor stuff. [5] [1]: https://news.ycombinator.com/item?id=3296782 https://news.ycombinator.com/item?id=3296782 [2]: https://medium.com/@rwxrob/significant-whitespace-is-still-the-devil-66d48674dc02 https://medium.com/@rwxrob/significant-whitespace-is-still-t... [3]: https://news.ycombinator.com/item?id=24854090 https://news.ycombinator.com/item?id=24854090 [4]: https://lobste.rs/s/yyuo7f/significant_whitespace_good_bad#c_mkmzgz https://lobste.rs/s/yyuo7f/significant_whitespace_good_bad#c... [5]: https://lobste.rs/s/yyuo7f/significant_whitespace_good_bad#c_gbo7kj https://lobste.rs/s/yyuo7f/significant_whitespace_good_bad#c...
      - xigoi 3y ago
        Python does have an auto-formatter [6], so clearly indentation doesn't prevent that. > Also, forget a brace in your program, just one, and the compiler can tell. Should we duplicate every character, so the compiler can tell if you leave one out? This is not a radiation-hardened quine [7]. > editor settings can make it much easier to break things with significant whitespace. Then use an editor which doesn't. > Selecting all code contained in a brace or a parents is so much easier (in vim the % movement) than if you have to walk lines. I have a plugin for Neovim that adds indentation-based motions. The implementation is trivial. [6] https://github.com/psf/black https://github.com/psf/black [7] https://codegolf.stackexchange.com/questions/57257/radiation-hardened-quine https://codegolf.stackexchange.com/questions/57257/radiation...

Run the formatter, and the brace-based mistake is easy to spot too.

xigoi 3y ago

So what's the point of having braces if you're going to use indentation anyway?

gavinhoward 3y ago
To do more things with the source than just compile it.
- xigoi 3y ago
  And how do braces and semicolons help you with that?
  - gavinhoward 3y ago
    Exactly what I mentioned above: source formatting is just one of the things you can do with braces and not significant whitespace. [1] Also, forget a brace in your program, just one, and the compiler can tell. Forget one indentation? No dice. And while braces can break things too, editor settings can make it much easier to break things with significant whitespace. [2] [3] Also, refactoring. [4] Editor stuff. [5] [1]: https://news.ycombinator.com/item?id=3296782 https://news.ycombinator.com/item?id=3296782 [2]: https://medium.com/@rwxrob/significant-whitespace-is-still-the-devil-66d48674dc02 https://medium.com/@rwxrob/significant-whitespace-is-still-t... [3]: https://news.ycombinator.com/item?id=24854090 https://news.ycombinator.com/item?id=24854090 [4]: https://lobste.rs/s/yyuo7f/significant_whitespace_good_bad#c_mkmzgz https://lobste.rs/s/yyuo7f/significant_whitespace_good_bad#c... [5]: https://lobste.rs/s/yyuo7f/significant_whitespace_good_bad#c_gbo7kj https://lobste.rs/s/yyuo7f/significant_whitespace_good_bad#c...
    - xigoi 3y ago
      Python does have an auto-formatter [6], so clearly indentation doesn't prevent that. > Also, forget a brace in your program, just one, and the compiler can tell. Should we duplicate every character, so the compiler can tell if you leave one out? This is not a radiation-hardened quine [7]. > editor settings can make it much easier to break things with significant whitespace. Then use an editor which doesn't. > Selecting all code contained in a brace or a parents is so much easier (in vim the % movement) than if you have to walk lines. I have a plugin for Neovim that adds indentation-based motions. The implementation is trivial. [6] https://github.com/psf/black https://github.com/psf/black [7] https://codegolf.stackexchange.com/questions/57257/radiation-hardened-quine https://codegolf.stackexchange.com/questions/57257/radiation...