Re: [Groff] trap problem

[Clarke Echols]

Another possibility:

.wh 0  \" When at top of page
if-else % is odd or even
.po    \" set page offset to desired setting.

The macros probably already have a .wh 0 trap, so you may need to
work around that problem.  That's why I prefer hacking the actual
top-of-page macro.

Clarke

address@hidden wrote:
> Thanks to Raph and Ted for their help in my last question. Now I have 
> another one. I need different left and right margins on odd- and 
> even-numbered pages using the ms macros. This is dealt with PO and LL 
> number registers, but I somehow need to alter them according to whether 
> a page is odd- or even-numbered. I suppose I need to write a trap to do 
> this. Are there any implementations of this already available somewhere? 
> I am currently looking at macros used in production of the UTP book. 
> Thanks.