//
// <rodelbahntabelle/>
// Generates a list of sledrun entries in a flexible way.
+// Each line (entry) either add sledruns or removes sledruns.
+// Without entries, the table contains no sledruns.
//
// Examples:
// Empty list:
// <rodelbahn>Rumer Alm</rodelbahn>
// </rodelbahntabelle>
//
-// All sledruns in region Innsbruck
+// All sledruns in region Innsbruck thats entries are not "under construction".
+// The name of the region has to correspond to a name (column name)
+// in the table wrregion.
// <rodelbahntabelle>
// <region>Innsbruck</region>
// </rodelbahntabelle>
//
-// All sledruns in region Innsbruck thats entries are not "under construction"
+// Same as above but excluding the sledrun "Rumer Alm":
// <rodelbahntabelle>
// <region>Innsbruck</region>
// <rodelbahn operation="-">Rumer Alm</rodelbahn>
// </rodelbahntabelle>
//
// Attributes:
-// * in_arbeit: values "ja" "nein" (default for region and rodelbahnen), "*" (default for rodelbahn)
+// * in_arbeit: values "ja", "nein" (default for <region> and <rodelbahnen>), "*" (default for <rodelbahn>)
// Just include the sledrun(s) if the condition is fulfilled.
-// * operation: values "+" (add the sledrun to the set, default), "-" (subtract the sledrun from the set)
+// * operation: values "+" (add the sledrun(s) to the set, default), "-" (subtract the sledrun(s) from the set)
// Attributes that may be implemented later
// * beleuchtungstage: values "0", "unknown" (is null), ">0" (excludes null), "7", "*" (includes null)
// Just include the sledrun(s) if the condition is fulfilled.