JAPE operators

There are a variety of features which now exist in JAPE, such as a negative operator.

For example, you are no longer constrained to use the same annotation type in both parts of the conjunction, as long as you have GATE 5.0 or higher.

1. Restrictions on Token length

{Token.length == "3"} works with GATE version 4 and more
{Token.length == 3} works with GATE version 5 and more

2. Rule conjunction

{Token.length == "1", Token.kind == "word"} works with GATE version 4 and more
{Token.length == "1", SpaceToken.kind == "control"}  works with GATE version 5 and more

3. Negative operators

{Token.length == "1", !SpaceToken.kind == "control"}

will match a single token of length 1 as long as it's not a SpaceToken of kind control. More info in the user guide.

4. Contains and within operators

• contains

{X contains Y}

returns true if an annotation of type X completely contains an annotation of type Y.

• within

{X within Y}

returns true if an annotation of type X is completely covered by an annotation of type Y.

• You can also do

{X contains {Y.foo==bar}}

and

{X.f1 != "something", X contains {Y.foo=bar}}

and

{Lookup.majorType == have, !Lookup within {VG.tense == PrePer}}

5. Kleene operator for ranges

({Token})[2,5]

matches between 2 and 5 consecutive tokens.