URL: <https://savannah.gnu.org/bugs/?66587>
Summary: commit f865d4ac91 broke sequencing of 'x X' commands
in grout stream
Group: GNU roff
Submitter: gbranden
Submitted: Thu 19 Dec 2024 07:57:32 PM UTC
Category: Core
Severity: 3 - Normal
Item Group: Incorrect behaviour
Status: In Progress
Privacy: Public
Assigned to: gbranden
Open/Closed: Open
Discussion Lock: Any
Planned Release: None
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Follow-up Comments:
-------------------------------------------------------
Date: Thu 19 Dec 2024 07:57:32 PM UTC By: G. Branden Robinson <gbranden>
[https://lists.gnu.org/archive/html/groff/2024-12/msg00085.html Observed by
Peter Schaffter.]
See the thread for root-cause analysis.
Here's the meat of the regression test script.
input='.
.sp 6P-1v
.
.nr img-w 25p
.nr img-d 22p
.
.di img-div
.ev img-div
.nf
\X@pdf: pdfpic artifacts/GNU_head_small.pdf@
.ev
.di
.
.char \[img] \*[img-div]
.ds gnu \v@-\n[img-d]u@\[img]\h@\n[img-w]u@
.
.nop A GNU head \*[gnu] image.
.'
output=$(printf "%s\n" "$input" | "$groff" -T pdf -Z)
echo "$output"
# We should observe a horizontal motion after the word "head" and before
# the device extension command.
stream=$(echo "$output" | tr '\n' ' ')
echo $stream | grep -Eq 't *head +w *h *2500 +V *62000 +x * X *pdf:'
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