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Out of curiosity, what makes you want to avoid significant whitespace? I think it solves the issue quite nicely. For what it's worth, I used to think SW was com

by tdavis 17y ago

Out of curiosity, what makes you want to avoid significant whitespace? I think it solves the issue quite nicely. For what it's worth, I used to think SW was completely absurd. Then I spent a few years actually writing Python and have no desire to ever go back.

j_baker 17y ago
Python's requirement of indentation is somewhat limiting in terms of what the language can do. For instance, that's partly the reason why Python doesn't allow more than a single expression in a lambda.
- jashkenas 17y ago
  It doesn't? Is there some kind of documentation about it we can look at?
  - DougBTX 17y ago
    Try: http://docs.python.org/dev/3.0/glossary.html#term-lambda http://docs.python.org/dev/3.0/glossary.html#term-lambda Sounds good that you are going to give significant indentation a try.
jashkenas 17y ago
I like to have the flexibility to indent in whatever style the code calls for. That said, looking over the Python docs again, their implementation of significant whitespace is a lot more flexible than I remembered. I didn't realize you could do one-line method definitions, and that the whitespace only kicks in when you write a multi-line block. Here's a question for you. In Python, if you have a couple of nested lambdas with multiline bodies, getting passed into each other as arguments, do you have to write the closing parenthesis on the correctly-indented line on the other side, or can it be tucked against the inner lambda? In a hypothetical significant-whitespace CoffeeScript, I'm thinking of this: elements.each(el => el.click(event => el.show())) Versus this: elements.each(el => el.click(event => el.show() ) ) Is the second form required to make Python-style whitespace work?
- aaronsw 17y ago
  No.
  - jashkenas 17y ago
    Great. Then let's start a "whitespace" branch, and give it a go. Edit: Alright, got a branch that starts with a little significant whitespace going here: http://github.com/jashkenas/coffee-script/tree/whitespace http://github.com/jashkenas/coffee-script/tree/whitespace It can't handle the first of the two cases mentioned above just yet, but it compiles the second one correctly.
- scott_s 17y ago
  Python does not have multiline lambdas. But Python only uses significant whitespace when it can't use other demarcations. For example, the following is legal: a = [ 1, 2, 3]

by tdavis 17y ago

j_baker 17y ago

Python's requirement of indentation is somewhat limiting in terms of what the language can do. For instance, that's partly the reason why Python doesn't allow more than a single expression in a lambda.

jashkenas 17y ago
It doesn't? Is there some kind of documentation about it we can look at?
- DougBTX 17y ago
  Try: http://docs.python.org/dev/3.0/glossary.html#term-lambda http://docs.python.org/dev/3.0/glossary.html#term-lambda Sounds good that you are going to give significant indentation a try.

jashkenas 17y ago

I like to have the flexibility to indent in whatever style the code calls for. That said, looking over the Python docs again, their implementation of significant whitespace is a lot more flexible than I remembered. I didn't realize you could do one-line method definitions, and that the whitespace only kicks in when you write a multi-line block. Here's a question for you. In Python, if you have a couple of nested lambdas with multiline bodies, getting passed into each other as arguments, do you have to write the closing parenthesis on the correctly-indented line on the other side, or can it be tucked against the inner lambda? In a hypothetical significant-whitespace CoffeeScript, I'm thinking of this: elements.each(el => el.click(event => el.show())) Versus this: elements.each(el => el.click(event => el.show() ) ) Is the second form required to make Python-style whitespace work?

aaronsw 17y ago
No.
- jashkenas 17y ago
  Great. Then let's start a "whitespace" branch, and give it a go. Edit: Alright, got a branch that starts with a little significant whitespace going here: http://github.com/jashkenas/coffee-script/tree/whitespace http://github.com/jashkenas/coffee-script/tree/whitespace It can't handle the first of the two cases mentioned above just yet, but it compiles the second one correctly.
scott_s 17y ago
Python does not have multiline lambdas. But Python only uses significant whitespace when it can't use other demarcations. For example, the following is legal: a = [ 1, 2, 3]