Re: a function for string splitting

[Greg Hill]

At 5:16 PM +0300 11/26/02, Luis O. Silva wrote:
> Dear Emacs community,
>
> I'm writing a function for translating dates in the form of a
> string into Spanish and Russian. For example, you have:
>
> "Thu, 21 Nov 2002 16:05:50 -0600 (CST)"
>
> Within my function I used a `let' expression of the form:
>
> (let ((day (substring "Thu, 21 Nov 2002 16:05:50 -0600 (CST)" 0 3))
>        (month (substring "Thu, 21 Nov 2002 16:05:50 -0600 (CST)" 8 11)))
>        ...)
>
> All works fine provided that there isn't any date with
> one-digit day, i. e., "Fri, 8 Nov 2002 11:56:37 -0500 (CST)"
>
> My question is what function I could use for correctly
> splitting the string.

Luis,

Give something like this a try:

(let*
 ((split-date (split-string "Thu, 21 Nov 2002 16:05:50 -0600 (CST)" " "))
 ((day-of-week (elt split-date 0))
 ((day-of-month (elt split-date 1))
 ((month (elt split-date 2))
 ...)

Be sure to use let* instead of let, since let does not guarentee the 
order of evaluation, and you always want split-date to be evaluated 
first.

--Greg