Update of bug #61450 (project groff):
Severity: 3 - Normal => 1 - Wish
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Follow-up Comment #1:
This might be as simple as adding a conditional to `skip_line()`
<https://git.savannah.gnu.org/cgit/groff.git/tree/src/roff/troff/input.cpp#n2445>.
`token::next()` already takes care of escape sequence processing, so comments
still work as documented.
So do other escape sequences. Here are some interesting things you can do
today, though I don't recall seeing any input that exploits the rules this
aggressively.
$ cat EXPERIMENTS/post-request-funny-business.groff
.ft R \R'a 5'
.ps 10 \s'24z'
.tm a=\na, .ps=\n[.ps]u
$ groff EXPERIMENTS/post-request-funny-business.groff
a=5, .ps=24000u
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