Re: a function for string splitting

[Greg Hill <ghill@synergymicro.com>]

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