From cd3a8f4441b6cee899bbc0b92b47c9ef8383c2b5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?V=C3=ADt=20Novotn=C3=BD?= <witiko@mail.muni.cz>
Date: Mon, 28 Feb 2022 12:00:55 +0100
Subject: [PATCH] Be lazy about what commands to use for default LaTeX table
 rules

Progresses #90.
---
 markdown.dtx | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/markdown.dtx b/markdown.dtx
index d3454c42e..8dd99c363 100644
--- a/markdown.dtx
+++ b/markdown.dtx
@@ -21345,14 +21345,16 @@ end
 \newtoks\markdownLaTeXTable
 \newtoks\markdownLaTeXTableAlignment
 \newtoks\markdownLaTeXTableEnd
-\@ifpackageloaded{booktabs}{
-  \let\markdownLaTeXTopRule\toprule
-  \let\markdownLaTeXMidRule\midrule
-  \let\markdownLaTeXBottomRule\bottomrule
-}{
-  \let\markdownLaTeXTopRule\hline
-  \let\markdownLaTeXMidRule\hline
-  \let\markdownLaTeXBottomRule\hline
+\AtBeginDocument{%
+  \@ifpackageloaded{booktabs}{%
+    \let\markdownLaTeXTopRule\toprule
+    \let\markdownLaTeXMidRule\midrule
+    \let\markdownLaTeXBottomRule\bottomrule
+  }{%
+    \let\markdownLaTeXTopRule\hline
+    \let\markdownLaTeXMidRule\hline
+    \let\markdownLaTeXBottomRule\hline
+  }%
 }
 \markdownSetup{rendererPrototypes={
   table = {%