else:
return ""
+def set_intersect(variable1, variable2, d):
+ """
+ Expand both variables, interpret them as lists of strings, and return the
+ intersection as a flattened string.
+
+ For example:
+ s1 = "a b c"
+ s2 = "b c d"
+ s3 = set_intersect(s1, s2)
+ => s3 = "b c"
+ """
+ val1 = set(d.getVar(variable1, True).split())
+ val2 = set(d.getVar(variable2, True).split())
+ return " ".join(val1 & val2)
+
def prune_suffix(var, suffixes, d):
# See if var ends with any of the suffixes listed and
# remove it if found
