Re: [Chicken-users] date, string formatting and locale

[Kon Lovett]

On Nov 3, 2010, at 8:09 AM, Hugo Arregui wrote:

> Sorry, I found another thing in srfi-19:
>
> > (date->string (seconds->date 12) "~B")
> "Diciembre"
>
> but, now:
>
> > (string->date (date->string (seconds->date 12) "~B") "~B")
>
> Error: (scan-date) bad date template - date read incomplete
> "~B"
> #,(date 0 0 0 0 #f 12 #f -10800 ART #f #f #f #f)
>
> I'm missing something?

The original implementation of SRFI 19 does not allow an incomplete  
date as the result of `string->date' & the my re-write just follows  
along. The minimum information for a complete input date, according to  
`string->date', has day, month and year components; the time and  
timezone components default to 0 and the locale, respectively.

Now, this "restriction" can be lifted but it is a backdoor to the  
creation of invalid date objects. I will add a note in the  
documentation about the situation. (It appears to be missing from the  
SRFI document as well.)

> Thanks.
> Hugo.
>
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Sorry for the problem,
Kon