Re: [Groff] .ch request query]

[Larry Kollar]

> ...  I must confess that I failed to read the manual,

/me whacks Dean with a trout :-)

> and blithely assumed that if two macros were at the same trap
> location, that I could get both executed when the trap was sprung.  It
> see now that is not what happens.
>
> Apparently I need to determine if a trap already exists at the desired
> location, and then add a bit so that my macro will be executed
> immediately afterwards. ...
>
> I suppose it might be nice if one could learn the name of the macro at
> a desired trap location, and then "append" one's additional statements
> to that macro

I think you're on the right track. Create the macros you want to execute
at a given point on the page, then create a "dummy" macro to be run
at the trap, then append your other macros to it...

.de trap-container
..

.de foo
.\" do something
..

.de bar
.\" do something else
..

.wh 10i trap-container

.\" something happens
.am trap-container
.foo
..
.\" something else happens
.am trap-container
.bar
..

--
Larry Kollar     k  o  l  l  a  r  @  a  l  l  t  e  l  .  n  e  t
Unix Text Processing: "UTP Revival"
http://home.alltel.net/kollar/utp/ (note new URL)