[bug #60522] [ms] want diagnostics when highlight macros called with excess args

[G. Branden Robinson]

URL:
  <https://savannah.gnu.org/bugs/?60522>

                 Summary: [ms] want diagnostics when highlight macros called
with excess args
                 Project: GNU troff
            Submitted by: gbranden
            Submitted on: Tue 04 May 2021 06:44:49 PM UTC
                Category: Macro - ms
                Severity: 1 - Wish
              Item Group: New feature
                  Status: In Progress
                 Privacy: Public
             Assigned to: gbranden
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:

Not really a "new feature" per se, just an ergonomic aid to help users from
losing pieces of text down a black hole.

The ms "highlighting" macros are a motley crew that take a varying quantity of
arguments, from zero (LG, SM, NL); one (BX); two (UL); up to three (R, B, I,
BI, CW).

In every case, if too many arguments are given, they are simply ignored. 
Under-specifying arguments is likely to be visible in formatted text, but
providing too many is harder to discern.

This is also easy to remedy.  Working on this now.




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