Can when syntax be more concise for when.pogo?

[philip andrew]

Hi there,

In when.pogo

when (x) [

    is 0

      print "x is zero"

    is 1

        print "x is one"

    otherwise

        print "x is not zero or one"

]

Can this be written in a more concise way? I wish to have the condition and statement on the same line.

I tried doing:

when (x) [

    is 0 { print "x is zero" }

...

but no good.

I want to say, I really under-estimated PogoScript when I first saw it, this is a very interesting and slightly amazing language, I'm so so impressed.

Some other thought - have you looked at Scala Macros, maybe you can copy some ideas from the Macro implementation of Scala which is well thought out into PogoScript.

Phil

[Tim Macfarlane]

Hi Phil,

You can write:

    when (x) [

        is 0 @{ print "x is zero" }

        ...

    ]

Blocks are written using @{ ... }, otherwise { ... } is a hash.

I am also considering some new syntax for this sort of thing, which will look a bit like this:

    when (x) [

        is 0 -> print "x is zero"

        ...

    ]

The -> would be useful for a one line block. Still a proposed feature so tell me if it's crazy or not.

Haven't looked at Scala Macros yet but will do. I always intended to put macros into the language (and still will) but for the moment I enjoy the fact that you can do a lot without using macros. Lisp was a massive inspiration for this language, so any reason to make it more lispy or more schemy is a good one.

Cheers mate,

Tim.

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