Filter out lines with invalid UTF-8

html-extract-stupid

@@ -34,6 +34,9 @@
 	# Filter out lines without an attribute value
 	grep -Pva '^[a-zA-Z]+ $' |
 
+	# Remove lines with invalid UTF-8
+	LANG=C.UTF-8 grep -a '^.*$' |
+
 	# img srcset splitting
 	python3 -c 'import os, re, sys'$'\n''try:'$'\n'' for l in map(str.strip, sys.stdin):'$'\n''  tag, value = l.split(" ", 1)'$'\n''  tag = tag.lower()'$'\n''  if tag != "imgsrcset":'$'\n''   print(l); continue'$'\n''  for url in re.split(r"\s+\d+[wx]\s*(?:,\s*|$)|,\s+", value.strip()):'$'\n''   if url: print(f"img {url}")'$'\n''except BrokenPipeError:'$'\n'' os.dup2(os.open(os.devnull, os.O_WRONLY), sys.stdout.fileno()); sys.exit(1)' |