Fix bug: lowercase and uppercase need to be strings (not element names :-)

diff --git a/xsl/html/autoidx.xsl b/xsl/html/autoidx.xsl
index 73eedd8cd7ef187e7756f6a03111b2e7df7a4884..27600e582ac7066595bb949143e69513eeab8eb1 100644 (file)
--- a/xsl/html/autoidx.xsl
+++ b/xsl/html/autoidx.xsl
@@ -1,8 +1,8 @@
 <?xml version="1.0"?>
 <!DOCTYPE xsl:stylesheet [
 
-<!ENTITY lowercase "abcdefghijklmnopqrstuvwxyz">
-<!ENTITY uppercase "ABCDEFGHIJKLMNOPQRSTUVWXYZ">
+<!ENTITY lowercase "'abcdefghijklmnopqrstuvwxyz'">
+<!ENTITY uppercase "'ABCDEFGHIJKLMNOPQRSTUVWXYZ'">
 
 <!ENTITY primary   'concat(primary/@sortas, primary[not(@sortas)])'>
 <!ENTITY secondary 'concat(secondary/@sortas, secondary[not(@sortas)])'>