Update of bug #64155 (project groff):
Status: Ready for Merge => Fixed
Open/Closed: Open => Closed
Planned Release: None => 1.24.0
Summary: [PATCH] specifying -fZD on command line generates
warnings => specifying -fZD on command line generates warnings
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Follow-up Comment #17:
commit 39ffa368dc6a1de4c11cf3f4f5b8594d3c974173
Author: G. Branden Robinson <g.branden.robin...@gmail.com>
Date: Thu May 25 05:35:25 2023 -0500
[troff]: Validate a font family before using it.
* src/roff/troff/env.cpp (is_family_valid): New function checks for all
text styles (R, I, B, BI) and returns true only if the given family
supports them all.
(family_change): Call `is_family_valid()` on given argument. If
invalid, throw diagnostic and ignore `fam` request.
* src/roff/troff/env.h (is_family_valid): Declare; make visible.
* src/roff/troff/input.cpp (main): Call `is_family_valid()` on `-f`
option argument. Its invalidity is a fatal error.
Fixes <https://savannah.gnu.org/bugs/?64155>. Thanks to Dave Kemper for
the report.
Tested with:
$ echo | ./build/test-groff -fZD -z
troff: fatal error: 'ZD' is not a valid font family
$ echo | ./build/test-groff -fH -z
$ nl ./EXPERIMENTS/validate-family.groff
1 .tm .fam=\n[.fam]
2 .fam H
3 .tm .fam=\n[.fam]
4 .fam
5 .tm .fam=\n[.fam]
6 .fam ZD
7 .fam BOGUS
8 .tm .fam=\n[.fam]
9 .fam
10 .tm .fam=\n[.fam]
$ ./build/test-groff ./EXPERIMENTS/validate-family.groff
.fam=T
.fam=H
.fam=T
troff:./EXPERIMENTS/validate-family.groff:6: error: 'ZD' is not a valid
font family
troff:./EXPERIMENTS/validate-family.groff:7: error: 'BOGUS' is not a valid
font family
.fam=T
.fam=H
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