From 00859777a189a19eb301db2bc018b7b4d000589d Mon Sep 17 00:00:00 2001
From: xrmb <git@xrmb.org>
Date: Sat, 4 Jul 2026 23:55:28 -0400
Subject: [PATCH 1/2] Remove duplicate shAll/initCollapse onload calls

window.onload invoked shAll() and initCollapse() twice. This produced a
second Show more button / fade overlay on every collapsible code block
and blockquote, and the second syntax-highlighting pass corrupted the
DOM and exposed internal CSS class names as visible text.
---
 mdview.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mdview.c b/mdview.c
index 23f6a9a..6316b4b 100644
--- a/mdview.c
+++ b/mdview.c
@@ -1491,7 +1491,6 @@ static void build_js(StrBuf* sb) {
     /* Init */
     "window.onload=function(){"
     "shAll();initCollapse();"
-    "shAll();initCollapse();"
     "if(ln)tl();"  /* apply line numbers if saved */
     "up()};"
     "</script>");

From 2dd30a2d8c6fc8f390cd2f2cd043f2a2222cbdd4 Mon Sep 17 00:00:00 2001
From: xrmb <git@xrmb.org>
Date: Sun, 5 Jul 2026 00:52:19 -0400
Subject: [PATCH 2/2] Prevent syntax highlighting from corrupting its own span
 tags

The regex-based highlighter was matching keywords, numbers, and
attribute names inside the <span class="sh-*"> tags it had just
created, producing visible fragments like class="sh-cm"> in the
rendered code block. Split each replacement so it only applies to
text outside existing HTML tags.
---
 mdview.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mdview.c b/mdview.c
index 6316b4b..55af27a 100644
--- a/mdview.c
+++ b/mdview.c
@@ -1421,12 +1421,12 @@ static void build_js(StrBuf* sb) {
     "h=h.replace(/(`(?:[^`\\\\]|\\\\.)*?`)/g,'<span class=\"sh-str\">$1</span>');"
 
     /* Numbers */
-    "h=h.replace(/\\b(\\d+\\.?\\d*(?:e[+-]?\\d+)?|0x[0-9a-fA-F]+)\\b/g,'<span class=\"sh-num\">$1</span>');"
+    "h=h.replace(/(<[^>]+>)|([^<]+)/g,function(m,tag,text){return tag?tag:text.replace(/\\b(\\d+\\.?\\d*(?:e[+-]?\\d+)?|0x[0-9a-fA-F]+)\\b/g,'<span class=\"sh-num\">$1</span>');});"
 
     /* HTML/XML tags */
     "if(lang==='html'||lang==='xml'){"
     "h=h.replace(/(&lt;\\/?)([a-zA-Z][a-zA-Z0-9]*)/g,'$1<span class=\"sh-tag\">$2</span>');"
-    "h=h.replace(/\\s([a-zA-Z-]+)(=)/g,' <span class=\"sh-attr\">$1</span>$2');"
+    "h=h.replace(/(<[^>]+>)|([^<]+)/g,function(m,tag,text){return tag?tag:text.replace(/\\s([a-zA-Z-]+)(=)/g,' <span class=\"sh-attr\">$1</span>$2');});"
     "}else{"
 
     /* Keywords per language family */
@@ -1445,10 +1445,10 @@ static void build_js(StrBuf* sb) {
     "kws='\\\\b(color|background|margin|padding|border|font|display|position|width|height|top|left|right|bottom|flex|grid|none|block|inline|relative|absolute|fixed|inherit|auto|important|solid|transparent)\\\\b';"
     "else if(lang==='php')"
     "kws='\\\\b(function|return|if|else|elseif|for|foreach|while|do|switch|case|break|continue|class|public|private|protected|static|new|echo|print|null|true|false|array|isset|empty|unset|require|include|use|namespace|try|catch|finally|throw|var)\\\\b';"
-    "if(kws){var re=new RegExp(kws,'g');h=h.replace(re,'<span class=\"sh-kw\">$1</span>');}"
+    "if(kws){var re=new RegExp(kws,'g');h=h.replace(/(<[^>]+>)|([^<]+)/g,function(m,tag,text){return tag?tag:text.replace(re,'<span class=\"sh-kw\">$1</span>');});}"
 
     /* Function calls: word followed by ( */
-    "h=h.replace(/\\b([a-zA-Z_][a-zA-Z0-9_]*)\\s*\\(/g,'<span class=\"sh-fn\">$1</span>(');"
+    "h=h.replace(/(<[^>]+>)|([^<]+)/g,function(m,tag,text){return tag?tag:text.replace(/\\b([a-zA-Z_][a-zA-Z0-9_]*)\\s*\\(/g,'<span class=\"sh-fn\">$1</span>(');});"
     "}"
 
     "el.innerHTML=h;}}"