Implement the gui category filters as query language fragments instead of hard-coding them. This allows implementing other kinds of filtering (ie:on directory) just by changing a configuration file

src/common/rclconfig.cpp

@@ -576,6 +576,24 @@ string RclConfig::getMimeHandlerDef(const string &mtype, bool filtertypes)
     return hs;
 }
 
+bool RclConfig::getGuiFilterNames(list<string>& cats) 
+{
+    if (!mimeconf)
+	return false;
+    cats = mimeconf->getNamesShallow("guifilters");
+    return true;
+}
+
+bool RclConfig::getGuiFilter(const string& catfiltername, string& frag)
+{
+    frag.clear();
+    if (!mimeconf)
+	return false;
+    if (!mimeconf->get(catfiltername, frag, "guifilters"))
+	return false;
+    return true;
+}
+
 bool RclConfig::valueSplitAttributes(const string& whole, string& value, 
 				     ConfSimple& attrs)
 {

src/common/rclconfig.h

@@ -202,6 +202,11 @@ class RclConfig {
     /** mimeconf: get list of mime types for category */
     bool getMimeCatTypes(const string& cat, list<string>&);
 
+    /** mimeconf: get list of gui filters (doc cats by default */
+    bool getGuiFilterNames(list<string>&);
+    /** mimeconf: get query lang frag for named filter */
+    bool getGuiFilter(const string& filtername, string& frag);
+
     /** fields: get field prefix from field name */
     bool getFieldTraits(const string& fldname, const FieldTraits **);
     const set<string>& getStoredFields() {return m_storedFields;}