+# These special directives defines names of keywords for parser
+@and og * # either 'or' or *
+@or eller # either 'eller' or +
+@not ikke # and so on..
+@set s set
+@case 0 # case insenstive (1 for case sensitive)
+@truncation * ?
+@field or
+
+# Aliases
+#
+# forfatter=x is equivalent to au=x
+forfatter au
+# tiau=x is equivalent to ti=x or ti=x
+tiau ti au