From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <n.goaziou@gmail.com>
Subject: Re: modify postamble in html export
Date: Fri, 20 Sep 2013 17:25:43 +0200
Message-ID: <87pps35xc8.fsf@gmail.com>
References: <523C4AFC.801@riseup.net>
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To: pw <pw@riseup.net>
Cc: eric@ericabrahamsen.net, emacs-orgmode@gnu.org

Hello,

pw <pw@riseup.net> writes:

>> You can override the whole thing by re-defining the `org-html-postable'
>> variable. Set it to a function which returns the string you want:
>>
>> (defun my-org-html-postamble ()
>>   (format "Last update : %s" (format-time-string "%d %b %Y")))
>>
>> (setq org-html-postamble 'my-org-html-postamble)
>>
>> I didn't test that, but something like that ought to work.
>
> Thanks!
>
> I tried to paste your code into my .emacs and I received the following
> error when publishing :
>
> "org-html--build-pre/postamble: Wrong number of arguments: (lambda nil
> (format "Last update : %s" (format-time-string "%d %b %Y"))), 1"
>
> I don't know where is the problem.

According to `org-html-postamble' docstring, the function has to accept
one argument.

> I tried then to do the same by modifying the variable "Org Export HTML
> Postamble Format". The default format is :
>
> '(("en" "<p class=\"author\">Author: %a (%e)</p>\n<p
> class=\"date\">Date: %d</p>\n<p class=\"creator\">%c</p>\n<p
> class=\"xhtml-validation\">%v</p>"))
>
> So I changed it to (with the idea to change the string format (%s)
> later if working) :
>
> '(("en"<p class=\"date\">Last update: %s</p>"))
>
> (which add to my .emacs :  '(org-html-postamble-format (quote (("en"
> "<p class=\"date\">Last update: %s</p>"))))
>
> But it does not change at all the postamble ""Created: 2013-09-19 jeu.
> 14:09"".
>
> So I'm stuck!

Again, according to `org-html-postamble' docstring, you need to set that
variable to t in order to use `org-html-postamble-format'. Then, by
looking at `org-html-postamble-format' docstring, you can see that only
%t, %a, %e, %d, %c, %v, %T and %C are allowed as format characters.

HTH,


Regards,

-- 
Nicolas Goaziou