URL: <https://savannah.gnu.org/bugs/?68865>
Summary: [troff] add `.sv` register permitting inspection of
saved vertical space
Group: GNU roff
Submitter: gbranden
Submitted: Sat 31 Oct 2026 02:57:59 PM UTC
Category: Formatter
Severity: 1 - Wish
Item Group: Feature change
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Unlocked
Planned Release: None
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Follow-up Comments:
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Date: Sat 31 Oct 2026 02:57:59 PM UTC By: G. Branden Robinson <gbranden>
The `sv` and `os` requests are pretty obscure features; they seem nearly
unused.
There is no way to introspect how much vertical space has been "saved" for
possible later output, short of causing its emission with `os` (and hoping the
space isn't truncated by page ejection), or running GNU _troff_ under a
debugger.
We can fix that.
Consider for _groff_ 1.26.
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