On 22/11/17 21:27, Claude Warren wrote:
I think equalTo for ElementData is not correct. Given 2 ElementData
instances
ElementData 1:
{noformat}
VALUES ( ?x ?v ) {
( "three" <one> )
( "four" <two> )
}
{noformat}
ElementData 2:
{noformat}
VALUES ( ?v ?x ) {
( <one> "three" )
( <two> "four" )
}
{noformat}
shouldn't the equalTo() method return true.
Currently it is sensitive to the ordering of the vars.
I can put a fix in but I want to be sure that there is an error first.
It's not an error.
Element* are syntax. and ".equals" is a syntax test, not a semantic
test. The variables are in a different order and in synatx that is
significant.
This is true throughout the abstract syntax provided by Element*. There
are lots of ways to write "the same" query. .equals means "same
abstract syntax".
Try "qparse" - it always checks the query round-trips as well as
printing it.
Andy
Claude
