Re: [Groff] Refer with MM

[Damian McGuckin]

I needed more flexibility with references when using the MM macros. I 
needed to modify the heading display, the hyphenation/font/line-spacing 
during the display of the references, and so on.

I have introduced the concept of 2 new macros, RZ and RH.  The 'RH' is a 
newly defined macro which will display the heading in font 2, centered on 
the page with a single line gap to the line.  By default, no 'RZ' macro 
is defined.

A user can define a macro 'RZ' which can be used to change hyphenation.
point size and interline spacing used to put the list of references on
the pages(s). E.g.

                .de RZ
                .S 12 14
                .nh
                ..

A user can redefine the macro 'RH' which can be used to control the way
the heading \\[Rp] is displayed and the spacing between it and the list
of references. This heading text comes in as the first argument. E.g.

                .de RH
                .ft HB
                \s+2\\$1\s-2
                .ft P
                .sp 2
                ..

It is probably not a good idea to leave fonts, point size and spacing any
different at exit as when it entered.

I have changed 'refer.tmac' by moving the two 'rm' commands in ']-' two 
lines down from their original lines. That change will only affect the MM 
macros.

Thare are changes to 2 files, 'm.tmac' and 'refer-mm.tmac'

I am testing. If anybody thinks this is useful, let me know.

Regards - Damian

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