[bug #63428] [me] want registers to set initial line length, page length, page offset

[Dave]

Follow-up Comment #1, bug #63428 (project groff):

[comment #0 original submission:]
> Right now it is only possible to set these _before_ the
> package initializes by futzing with device description and/or
> device macro files.  Practically no one will do that.

...or by using .mso within the document, rather than -m on the command line,
to load the macro package.  Then the user can call any number of requests
before the package initializes.  This is more attainable to Joe Average User
than the schemes above.

This is in no way opposition to your proposal, just an observation about what
the status quo offers.

(And frankly, I think it's good practice for the document author to always use
.mso to select a macro package: the author knows what macro package(s) the
document requires, whereas the person groffing it might not, and would have to
look at the source to figure it out (hopefully commented prominently at the
top), or hope grog can correctly guess.  As a general rule, command-line
options should control things that a user might want to configure _per run_. 
Macro package dependencies don't fall into that category; those are intrinsic
to the document, so the document should handle them.)


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