def HasTagValue(tags, key, value):
""" returns true if given key has given value """
tval = giv.StructTagVal(key, tags)
return tval == value
def FieldTagVal(self, field, key):
""" returns the value for given key in tags for given field, empty string if none """
return giv.StructTagVal(key, self.FieldTags(field))
def TagValue(tags, key):
""" returns tag value for given key """
return giv.StructTagVal(key, tags)