[Groff] new string comparison?

[Werner LEMBERG]

Dear friends,


would it make sense to add a new condition to the `if' request (and
its siblings) to compare strings literally?  Something like

  .ds xxx aaa
  .ds yyy aaa
  .
  .if s "\*[xxx]"\*[yyy]" \
  .  tm true

The strings won't be processed, just expanded (in copy-mode).  For
most macro packages, `processing' of strings isn't necessary;
additionally, comparing strings literally would be (much?) faster.


    Werner