Booleans written as "true" are not recognized even though this is valid according to the schema

[peersch]

According to the schema, for boolean values the type xs:boolean is used. The value space of sx:boolean is "true" and "false" together with "1" for true and "0" for false.
Currently, in parse_boolean, the value is only checked against "1" where it also should be checked against "true".

[fjes]

Thank you for your report. According to ETG 2000 v1.0.13 the data type boolean has the allowed values 0 and 1. I will check if this definition is aligned with the xs:boolean definition.

[peersch]

I know, the v1.0.14 version I have says the values 0 and 1 are to use but then in the descriptive text they often refer to true and false (e.g. for Data/@AdaptAutomatically, there they explicitly show a @AdaptAutomatically = “true”).
In addition I have a couple of example ESI files downloaded from Beckhoff, there they use 'true' for examlple for Device/Mailbox/DataLinkLayer which is a boolean, too.
So for me it looks like are both styles are ok.

[fjes]

I will check with the Conformance Test Tool and some other checkers just to be sure the tools are working properly. The fix will likely be in the next release.