Re: @var{x_1} is funny in pdf

[Leo Butler]

Gavin Smith <gavinsmith0123@gmail.com> writes:

> On Mon, Jan 18, 2021 at 9:15 PM Leo Butler <leo.butler@umanitoba.ca> wrote:
>>
>> Gavin Smith <gavinsmith0123@gmail.com> writes:
>>
>> > As it happens, there was a hook recently added to texinfo.tex to omit
>> > the page number, which looks a lot like the patch you sent (change on
>> > 2020-11-17).  If you say "@set txiomitrefpg" the page numbers won't be
>> > output.  I've uploaded the newer texinfo.tex to ftp.gnu.org/gnu/texinfo
>> > now.  This is still not documented anywhere.
>>
>> Hi Gavin,
>>
>> That hook does not work quite the way I would like. Since you only test
>> if txiomitrefpg is ever set, there is little discretion possible. What I
>> would like is the ability to selectively include (or exclude) page
>> refs. E.g. define
>>
>> \def\pagelessref#1{\txiomitrefpgtrue\ref{#1}}
>> \def\pagefulref#1{\txiomitrefpgfalse\ref{#1}}
>>
>> and intermingle their use.
>
> You can clear the flag after you set it with "@clear txiomitrefpg".
>
>> In texinfo.tex, rather than
>>
>> \expandafter\ifx\csname SETtxiomitxrefpg\endcsname\relax
>>
>> have
>>
>> \iftxiomitrefpg
>
> Doing it with @set means we can avoid having to invent new Texinfo
> commands like @txiomitrefpgtrue etc.

Fair enough. What I want to convey is that the `value' of \txiomitrefpg
should be tested, not whether it has been set. E.g.

\def\pagelessref#1{\let\txiomitrefpg=1\ref{#1}}
\def\pagefulref#1{\let\txiomitrefpg=0\ref{#1}}

and

\ifnum\txiomitrefpg=1\relax

Leo