Tue Sep 20 07:01:50 UTC 2005  Alberto Bertogli <albertogli@telpin.com.ar>
  * Replace tabs with spaces for nicer output.
  Tabs need to be replaced with spaces to avoid problems displaying lines that
  begin with tabs.
  
  This patch implements a very simple function to do so, and modifices
  print_blob() to use it.
diff -rN -u old-darcsweb/darcsweb.cgi new-darcsweb/darcsweb.cgi
--- old-darcsweb/darcsweb.cgi	2015-10-21 14:57:24.000000000 +0000
+++ new-darcsweb/darcsweb.cgi	2015-10-21 14:57:25.000000000 +0000
@@ -139,6 +139,16 @@
 		s = s[:max - 4] + ' ...'
 	return s
 
+def replace_tabs(s):
+	pos = s.find("\t")
+	while pos != -1:
+		count = 8 - (pos % 8)
+		if count:
+			spaces = ' ' * count
+			s = s.replace('\t', spaces, 1)
+		pos = s.find("\t")
+	return s
+
 def fperms(fname):
 	m = os.stat(fname)[stat.ST_MODE]
 	m = m & 0777
@@ -941,6 +951,7 @@
 		l = fixu8(escape(l))
 		if l and l[-1] == '\n':
 			l = l[:-1]
+		l = replace_tabs(l)
 
 		print """\
 <div class="pre">\