Index: openacs-4/packages/xowiki/tcl/xowiki-sc-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/xowiki-sc-procs.tcl,v
diff -u -N -r1.41 -r1.42
--- openacs-4/packages/xowiki/tcl/xowiki-sc-procs.tcl	30 Sep 2017 18:12:53 -0000	1.41
+++ openacs-4/packages/xowiki/tcl/xowiki-sc-procs.tcl	27 Feb 2018 20:35:01 -0000	1.42
@@ -39,8 +39,19 @@
   switch [dict get $d mime] {
     text/html {
       set content [dict get $d html]
-      set text [ad_html_text_convert -from text/html -to text/plain -- [dict get $d html]]
-      #set text [ad_text_to_html -- [dict get $d html]]; #this could be used for entity encoded html text in rss entries
+      #
+      # The function ad_html_text_convert can take forever on largish
+      # files, when e.g. someone loads a huge plain/text file into an
+      # xowiki file. so, when available, use "ns_striphtml", which
+      # might produce a less beautiful rendering, but wich is
+      # irrelevant for search.
+      #
+      if {[info commands ns_striphtml] ne ""} {
+        set text [ns_striphtml [dict get $d html]]
+      } else {
+        set text [ad_html_text_convert -from text/html -to text/plain -- [dict get $d html]]
+        #set text [ad_text_to_html -- [dict get $d html]]; #this could be used for entity encoded html text in rss entries
+      }
       
       # If the html contains links (which are rendered by ad_html_text as [1], [2], ...)
       # then we have to use CDATA in the description