Re: Count number of spaces at beginning of line?

[Oliver Corff]

Hi Branden,


On 30/04/2023 14:50, G. Branden Robinson wrote:
> At 2023-04-29T21:22:00-0500, Dave Kemper wrote:
> > On 4/29/23, Oliver Corff <oliver.corff@email.de> wrote:
> > > Is there any possibility to count leading spaces in groff?
> > See the documentation for the \n[lsn] register.  I've never used it,
> > but its description sounds like what you're looking for.
> Indeed, a preprocessor seems like overkill for this application, but for
> the fact that your original spec had the section title on the same line
> as the leading spaces, which makes it hard to get that title into the
> context of a leading space macro.  (Trap-called macros do not receive
> arguments.)

I confess that my ad-hoc description was defective. It assumed some kind
of mechanism for detecting zero spaces before the first line, otherwise
the algorithm could start with the assumption that the first line is
never indented.

Best regards,

Oliver.

> Regards,
> Branden

--
Dr. Oliver Corff
mailto:oliver.corff@email.de