help: document new search prefixes

[public-inbox.git] / lib / PublicInbox / WwwText.pm

diff --git a/lib/PublicInbox/WwwText.pm b/lib/PublicInbox/WwwText.pm
index b8beb97c6d5983e9c319a2f7733a4e232fc7f884..b0f262cd08d823af81944b5484b63d849c913570 100644 (file)
--- a/lib/PublicInbox/WwwText.pm
+++ b/lib/PublicInbox/WwwText.pm
@@ -134,7 +134,7 @@ search
     in other search engines.
 
     We also support search prefixes to limit the scope of the
     in other search engines.
 
     We also support search prefixes to limit the scope of the

-    search to certain fields using prefixes.
+    search to certain fields.

 
     Prefixes supported in this installation include:
 
 
     Prefixes supported in this installation include:
 


@@ -142,6 +142,10 @@ EOF
                _srch_prefix($srch, $txt);
 
                $$txt .= <<EOF;
                _srch_prefix($srch, $txt);
 
                $$txt .= <<EOF;

+
+    Most prefixes are probabilistic, meaning they support stemming
+    and wildcards ('*').  Ranges (such as 'd:') and boolean prefixes
+    do not support stemming or wildcards.

     The upstream Xapian query parser documentation fully explains
     the query syntax:
 
     The upstream Xapian query parser documentation fully explains
     the query syntax: