🚀 go-pugleaf

When writing a document, I want to be able to symbolically reference
some point in my (or someone else's) document.  FOr example, in my
document, I want to say...

	... for more information, refer to page XX (section 1.2.3)
	    of this manual.

I don't want to hard-code either the page number or the section number
because if I change the document substantially these numbers will
change and I might forget to adjust all the references.  I would like
to be able to mark a point in my document, assign a symbol (hopefully
not only 2 characters) and then reference that symbol elsewhere.  I would
like forward and backward references (I know I might have to troff it
twice - it would be worth it).

Has anyone solved this one?  If so, would you like to share it with me
(us)?

Thanks much
Robert Hutchison
ihnp4!lzaz!hutch