[vwnc] Suffix when printing numbers

When printing FixedPoint, Double etc, an #exponentCharacter is added at
the end.  This is probably a good thing when debugging, since it lets
you see what kind of number you've got, but when printing for end-user
purposes this isn't what we want.  Is there a protocol that we've missed
that lets us print numbers without this suffix?

Thanks,
David

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David,

NumberPrintPolicy
 print: 12345.678s3
 using: '#,##0.000'

We've also added a number of simple extensions to the codebase here to
allow you to shortcut that with,

12345.678s3 printUsing: '#,##0.000'

See attached,

Hope this helps!

-Boris

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> -----Original Message-----
> From: [hidden email] [mailto:[hidden email]] On
Behalf
> Of David Price
> Sent: Sunday, April 13, 2008 10:54 PM
> To: vwnc-list
> Subject: [vwnc] Suffix when printing numbers
>
> When printing FixedPoint, Double etc, an #exponentCharacter is added
at
> the end.  This is probably a good thing when debugging, since it lets
> you see what kind of number you've got, but when printing for end-user
> purposes this isn't what we want.  Is there a protocol that we've
missed
> that lets us print numbers without this suffix?
>
> Thanks,
> David
>
> _______________________________________________
> vwnc mailing list
> [hidden email]
> http://lists.cs.uiuc.edu/mailman/listinfo/vwnc

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On Apr 13, 2008, at 10:53 PM, David Price wrote:

> When printing FixedPoint, Double etc, an #exponentCharacter is added  
> at
> the end.  This is probably a good thing when debugging, since it lets
> you see what kind of number you've got, but when printing for end-user
> purposes this isn't what we want.  Is there a protocol that we've  
> missed
> that lets us print numbers without this suffix?


Some sites add displayString extensions to these classes. Not overly  
elegant or anything.

--
Travis Griggs
Objologist
"Is success the potential of what could be, or the reality of what is?"


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Thanks for the replies Boris and Travis.

Because we mostly wanted to get the same behaviour as GemStone (which
doesn't add these suffixes), we ended up just implementing asString on
Number as follows:

asString
    ^super asString reject: [:char | char = self class exponentCharacter]

Not the nicest thing to have to do, but oh well.

David and Steve

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David Price wrote:
1.0e30 -> 1.030
:(

I hope you handle only small numbers.

Nicolas

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