Indentation in do notation

[dag.od...@gmail.com]

Hello

I understand why the end tag in do-notation must be indented further than its start tag. I understand that this is consistent with how do-notation is otherwise parsed. But is it technically necessary, or is it just enforced for consistency? Allow me to argue two points:

1. DoAndIfThenElse shows that convenience and intuitiveness is valued more than consistency in the case of do notation.
2. The embedded XML syntax of HSX is a rather special case that doesn't really feel like normal code: it both is and feels more like pragma instructions to a pre-processor. Staying consistent with how the Haskell is parsed is rather paradoxical — in deed, the XML syntax itself is not "valid Haskell".

Unless there are technical reasons for the current parsing rules in do notation, I would really prefer the restriction to be lifted. I think it would be less confusing to people who haven't used HSX or HSP before, too.

Cheers, and thanks for all the good work,

Dag

[Niklas Broberg]

That's a good point actually. Having just implemented the mentioned DoAndIfThenElse, I doubt it would be difficult to do as you suggest. I'll have a go at implementing this to get a feel for how difficult it would be, while waiting for more input.

Cheers,

/Niklas

[Niklas Broberg]

On Thu, Mar 29, 2012 at 9:18 AM, Niklas Broberg <niklas....@gmail.com> wrote:

That's a good point actually. Having just implemented the mentioned DoAndIfThenElse, I doubt it would be difficult to do as you suggest. I'll have a go at implementing this to get a feel for how difficult it would be, while waiting for more input.

Affirmative, no problem at all implementing it. So, anyone against?

/Niklas

[Jeremy Shaw]

Nice! I am *for* it.

On Thu, Mar 29, 2012 at 3:58 AM, Niklas Broberg

> --
> You received this message because you are subscribed to the Google Groups
> "Haskell Server Pages" group.
> To post to this group, send email to haskell-se...@googlegroups.com.
> To unsubscribe from this group, send email to
> haskell-server-p...@googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/haskell-server-pages?hl=en.

[dag.od...@gmail.com]

On 29 March 2012 10:58, Niklas Broberg <niklas....@gmail.com> wrote:

Affirmative, no problem at all implementing it. So, anyone against?

Cool!