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[bug #64122] [tbl] numeric overflow when restoring hyphenation margin an
From: |
G. Branden Robinson |
Subject: |
[bug #64122] [tbl] numeric overflow when restoring hyphenation margin and spacing |
Date: |
Fri, 28 Apr 2023 06:17:54 -0400 (EDT) |
URL:
<https://savannah.gnu.org/bugs/?64122>
Summary: [tbl] numeric overflow when restoring hyphenation
margin and spacing
Group: GNU roff
Submitter: gbranden
Submitted: Fri 28 Apr 2023 10:17:52 AM UTC
Category: Preprocessor tbl
Severity: 3 - Normal
Item Group: Incorrect behaviour
Status: In Progress
Privacy: Public
Assigned to: gbranden
Open/Closed: Open
Discussion Lock: Any
Planned Release: None
_______________________________________________________
Follow-up Comments:
-------------------------------------------------------
Date: Fri 28 Apr 2023 10:17:52 AM UTC By: G. Branden Robinson <gbranden>
This is a post-groff 1.22.4 problem; groff 1.22.4 didn't restore these
document parameters at all, meaning that a tbl(1) text block that manipulated
them could screw up the rest of the input.
Background:
https://lists.gnu.org/archive/html/groff/2023-04/msg00258.html
https://lists.gnu.org/archive/html/groff/2023-04/msg00313.html
Illustration:
$ cat ./EXPERIMENTS/hym-and-hys.roff
.hym 10m
.hys 5m
.tm before: .hym=\n[.hym], .hys=\n[.hys]
.TS
L.
foo
.TE
.nf
.tm after: .hym=\n[.hym], .hys=\n[.hys]
.if !((\n[.hym] = 10m) & (\n[.hys] = 5m)) .ab
$ ./build/test-groff -tz ./EXPERIMENTS/hym-and-hys.roff
before: .hym=100000, .hys=50000
after: .hym=1000000000, .hys=500000000
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- [bug #64122] [tbl] numeric overflow when restoring hyphenation margin and spacing,
G. Branden Robinson <=