Hi,

Could you change the comparision in the SRFI¹ from my first email to the real 
implementation in Wisp?

¹: http://srfi.schemers.org/srfi-110/srfi-110.html#arne

Changes:

- the sublist with inline : always ends at the end of the line (thanks to Alan)
- inconsistent dedents produce broken code (they *should* throw an error).
- the name is wisp :)

This means that some examples change:

first: should not use double colons:

    let : : x : compute 'x
          : y : compute 'y
        use x y

new:

    let 
        : 
            x : compute 'x
            y : compute 'y
        use x y


SUBLIST comparison:

old: would not be written like that (though you can)…

    begin
      . (display "Welcome, ") (display player) (display ", to Chicago!") 
(newline)

but rather like this:

    begin
      display "Welcome, "
      display player
      display ", to Chicago!"
      newline

or like this, if you want more complex expressions:

    begin
        display 
            concat "Welcome, " player 
                 . ", to Chicago!"
        newline


This uses more vertical space - and I don’t mind (so it is a design
choice not to try very hard to minimize vertical space).


For the single gigantic top-level datum, you just indent the rest (as in class 
definitions in Python):

library : example
    import : scheme base
    export . 
        example-init example-open example-close
    begin
        define : example-init
            whatever ...
            ...
          
        define : example-open x
            whatever ...
            ...
          
        define : example-close y
            whatever ...
            ...

I’m used to pythen, and to me this looks completely natural. Compare:

class example:
    def __init__():
        import base
        print base.stuff
        def localfunc():
            whatever …
            …

Best wishes,
Arne

At Mon, 01 Apr 2013 23:53:57 +0200,
Arne Babenhauserheide wrote:
> 
> [1  <multipart/signed (quoted-printable)>]
> [1.1  <text/plain; utf-8 (quoted-printable)>]
> Am Donnerstag, 28. März 2013, 18:31:04 schrieb David A. Wheeler:
> > Arne Babenhauserheide:
> > > I finally managed to get the simple indentation to lisp preprocessor into 
> > > a working state and thought you might be interested.
> > 
> > Absolutely!!
> 
> Glad to hear that! :)
> 
> > ... 
> > > But at least I managed to write a real release text with an explanation 
> > > of the syntax and code-examples: 
> > > http://draketo.de/light/english/wisp-lisp-indentation-preprocessor
> > 
> > Thanks! I just added that URL link to the SRFI Alan and I are developing.  
> > That way, anyone who might be interested can jump straight to your stuff.
> 
> Cool - thanks!
> 
> > > PS: @David: I just realized that I had missed quite a few of your answers 
> > > because they were sent only to the list while Alans answers were also 
> > > addressed to me… sorry for that. 
> > 
> > Sigh, I specifically do that so people won't get doubled emails all the 
> > time; some people complain when I send them both ways.  I just can't win 
> > :-).
> 
> :)
> 
> At least I found your messages after some time :)
> (I know that my workflow can cause me to miss some messages so I *try* to 
> check the ignored messages from time to time to see if any new ones are still 
> relevant)
> 
> Best wishes,
> Arne
> -- 
> Unpolitisch sein
> heißt politisch sein, 
> ohne es zu merken. 
> - Arne (http://draketo.de)
> 
> 
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