Datestamp on Reports

[mcmurchy1917-gnucash at yahoo.co.uk]

My view is that would indicate a syntax error. The probable reason is that the 
date routines aren't available to your script.

Try this quick test

Start up a command line interface for bash or ksh or whatever is your 
favourite scripting environment. At the command line prompt type 

	guile

then at the guile prompt type 

	(display (date->string (current-date) "Printed at ~d/~m/~Y ~H:~M:~S"))

If the date routines aren't available you should get this error - 

	Backtrace:
	In standard input:
   	1: 0* [display ...
   	1: 1*  (date->string (current-date) "Printed at ~d/~m/~Y ~H:~M:~S")

	standard input:1:10: In expression (date->string (current-date) "Printed 	
	at ~d/~m/~Y ~H:~M:~S"):
	standard input:1:10: Unbound variable: date->string
	ABORT: (unbound-variable)


Now include the date routines by typing at the guile prompt

	(use-modules (srfi srfi-19)) ; for extra date functions

and try again 

	(display (date->string (current-date) "Printed at ~d/~m/~Y ~H:~M:~S"))

It should work this time. To get out of guile use ctrl-d


To include the date routine in my script I have this line in my version of 
"balsheet-eg.scm" -

(use-modules (srfi srfi-19)) ; for extra date functions


I hope this helps.






On Tuesday 08 Oct 2013 16:42:01 Michael Hendry wrote:
> On 8 Oct 2013, at 08:42, Michael Hendry <hendry.michael at gmail.com> wrote:
> > On 7 Oct 2013, at 21:54, mcmurchy1917-gnucash at yahoo.co.uk wrote:
> >> In my customised Balance report called  balsheet-eg.eguile.scm
> >> 
> >> I have this code -
> >> 
> >> <br clear="both">
> >> <center>
> >> <p><?scm:d opt-extra-notes ?>
> >> <p><?scm
> >> (display (date->string (current-date) "Printed at ~d/~m/~Y ~H:~M:~S"))
> >> ?>
> >> </center>
> >> <?scm (if (not css?) (begin ?>
> >> </table> <!-- hack for GTKHTML -->
> >> <?scm )) ?>
> >> 
> >> </body>
> >> </html>
> >> 
> >> <?scm
> >> ) ; enclosing let
> >> ?>
> >> 
> >> 
> >> Regards
> > 
> > Thanks - that looks like the best route.
> > 
> > Trying to avoid hacking, and use the tools provided, I'd been looking into
> > making adjustments to the Stylesheets - in particular the Footer one.
> > 
> > I found that simple HTML could be included, such as enclosing a string in
> > <B>…</B> to make it appear in bold print, but then ran into the buffers
> > when I found that HTML code couldn't be used to generate the current
> > date, and that I couldn't readily use server-side code such as Javascript
> > or PHP without putting my gnucash-generated HTML on a server.
> > 
> > I shall study your code fragment, and once I understand what it's doing,
> > I'll see if I get it to work for me.
> > 
> > Regards
> > 
> > Michael
> 
> PS
> 
> I've inserted the additional lines as above, but I get the following at the
> bottom of the report...
> 
> (Development version -- don't rely on the numbers on this report without
> double-checking them. Change the 'Extra Notes' option to get rid of this
> message)
> 
> An error occurred when processing the template:
> 
> ERROR: Unbound variable: date->string
> In current input:
>   30: 53* (let* (#) (letrec # # # ...))
>    ?: 54  (letrec # # # ...)
>  307: 55* [display ...
>  307: 56*  (date->string (current-date) "Printed at ~d/~m/~Y ~H:~M:~S")
> 
> …and I'm afraid the error messages don't mean a lot to me!
> 
> Michael