From: Mark Wooding <mdw@distorted.org.uk>
Date: Mon, 7 Sep 2020 01:00:14 +0000 (+0100)
Subject: poetry.dtx (\maybe@unskip): Match the version in `mdwtab'.
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~mdw/git/mdwtools/commitdiff_plain/6a1388ae98e3c04d9d0bf4d99249b228a7934bd9?hp=11222df6d22f1e7decc2c476f290e141ea9b3a90

poetry.dtx (\maybe@unskip): Match the version in `mdwtab'.

I don't actually know why these were different.  Both versions appear to
have been there forever, though it's clear that these packages had lives
before they were checked into CVS in 2002.  Obviously, since these have
the same name, they should have the same definition.  The `mdwtab'
version is more robust (checking `\ifhmode' before applying `\hskip'),
and slightly more refined (using `\m@ne' rather than `-\@ne'), so I'm
going with that one.
---

diff --git a/poetry.dtx b/poetry.dtx
index 4cf8596..3b0ade1 100644
--- a/poetry.dtx
+++ b/poetry.dtx
@@ -468,7 +468,7 @@
 % a \<skip> by a \<number> kills off the stretch.
 %
 %    \begin{macrocode}
-\def\@maybe@unskip{\hskip-\@ne\lastskip\relax}
+\def\@maybe@unskip{\ifhmode\hskip\m@ne\lastskip\relax\fi}
 %    \end{macrocode}
 %
 % \end{macro}