From 384339108b4b55fd43ad605da0aaea0f3f207053 Mon Sep 17 00:00:00 2001
From: Rodrigo Arias Mallo <rodarima@gmail.com>
Date: Wed, 8 May 2024 21:34:46 +0200
Subject: Remove duplicated line breaks in code blocks

Some code blocks inside <pre> were adding double line breaks with the
<br> tag.
---
 man.filter.dpi | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/man.filter.dpi b/man.filter.dpi
index c028235..5b9adbc 100755
--- a/man.filter.dpi
+++ b/man.filter.dpi
@@ -45,6 +45,11 @@ link_xrefs() {
   sed 's_<i>\([^<]*\)</i>(\([0-9][^)]*\))_<a href="man:\1(\2)" class="Xr">\1(\2)</a>_g'
 }
 
+fix_br() {
+  # Line breaks <br> inside <pre> show duplicated breaks
+  awk '/<pre>/ {inpre=1}; inpre && / *<br\/>$/ { next }; /<\/pre>/ { inpre=0 } { print }'
+}
+
 serve_manpage() {
   url="$1"
   ref="${url#"man:"}"
@@ -62,7 +67,7 @@ serve_manpage() {
     printf "<cmd='start_send_page' url='' '>\n"
     printf "Content-type: text/html\r\n\r\n"
     unset MANROFFOPT
-    man -Thtml $manpage | inject_css | link_xrefs 2>&1
+    man -Thtml $manpage | fix_br | inject_css | link_xrefs 2>&1
   fi
 }
 
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