URL:
<https://savannah.gnu.org/bugs/?64790>
Summary: [troff] use default value zero for ligatures and
kerning in nroff mode
Group: GNU roff
Submitter: bjarniig
Submitted: Wed 18 Oct 2023 06:45:21 PM UTC
Category: Core
Severity: 3 - Normal
Item Group: Feature change
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Planned Release: None
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Follow-up Comments:
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Date: Wed 18 Oct 2023 06:45:21 PM UTC By: Bjarni Ingi Gislason <bjarniig>
Subject: [troff] use default value zero for ligatures and kerning in
nroff mode
Currently both "global_ligature_mode" and "global_kerning_mode" (in
src/roff/troff/node.cpp) are set to the value one (1, true) for both
nroff and troff mode.
But in nroff mode the fonts do neither have ligatures nor kerning
data,
so the software is executing code, that in effect changes nothing,
but uses energy for nothing.
The forgoing variables should therefore be initialised to zero
(0, false) in nroff mode.
Also add a warning when ligature or kerning is asked for when in
nroff mode.
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