From 8013758c0165b050d45b11e550ced3576bb520df Mon Sep 17 00:00:00 2001
From: =?utf8?q?Paul=20H=C3=A4nsch?= <paul@plutz.net>
Date: Tue, 6 Feb 2024 23:49:23 +0100
Subject: [PATCH] page_title: fall back to page's path name when title cannot
 be determined

---
 tools.sh | 37 ++++++++++++++++++++-----------------
 1 file changed, 20 insertions(+), 17 deletions(-)

diff --git a/tools.sh b/tools.sh
index dfa4594..248a254 100755
--- a/tools.sh
+++ b/tools.sh
@@ -189,23 +189,26 @@ has_tag() {
 page_title() {
   local mdfile PAGE_TITLE
 
-  if  mdfile="$(mdfile "${1:-${PATH_INFO%/*}}")"; then
-    PAGE_TITLE="$(
-      sed -nE '
-        s;^%title[ \t]+([[:graph:]][[:print:]]+)\r?$;\1;p; tQ;
-        b; :Q q;
-      ' "$mdfile"
-    )"
-    [ ! "${PAGE_TITLE}" ] && PAGE_TITLE="$(
-      MD_MACROS="" md <"$mdfile" \
-      | sed -nE '
-        s;^.*<h1[^>]*>(.*>)?([^<]+)(<.*)?</h1>.*$;\2;p; tQ;
-        s;^.*<h2[^>]*>(.*>)?([^<]+)(<.*)?</h2>.*$;\2;p; tQ;
-        b; :Q q;
-      '
-    )"
-    printf %s\\n "$PAGE_TITLE"
-  else
+  if ! mdfile="$(mdfile "${1:-${PATH_INFO%/*}}")"; then
     return 1
   fi
+  PAGE_TITLE="$(
+    sed -nE '
+      s;^%title[ \t]+([[:graph:]][[:print:]]+)\r?$;\1;p; tQ;
+      b; :Q q;
+    ' "$mdfile"
+  )"
+  [ ! "${PAGE_TITLE}" ] && PAGE_TITLE="$(
+    MD_MACROS="" md <"$mdfile" \
+    | sed -nE '
+      s;^.*<h1[^>]*>(.*>)?([^<]+)(<.*)?</h1>.*$;\2;p; tQ;
+      s;^.*<h2[^>]*>(.*>)?([^<]+)(<.*)?</h2>.*$;\2;p; tQ;
+      b; :Q q;
+    '
+  )"
+  if [ ! "${PAGE_TITLE}" ]; then
+    PAGE_TITLE="${1:-${PATH_INFO%/*}}"
+    PAGE_TITLE="${PAGE_TITLE##*/}"
+  fi
+  printf %s\\n "$PAGE_TITLE"
 }
-- 
2.39.2