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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] How to write (existential) predicates with maps/Why is Play the video Subject: How to write (existential) predicates with maps/Why is there no effective boolean value for a map? From: "Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> Date: Mon, 11 Feb 2019 12:09:25 -0000 When using XPath 3.1 (e.g. in XSLT 3) on maps I have found that I have to change my coding habit a bit when writing predicates that want to check the existence of some nested map, while I hoped to be able to write e.g. ?locations?*[?types?*[?name = 'foo']] to select all (map) members of the "locations" array that have a "types" array with at least one (map) member having a property "name" with value "foo" I get an error Effective boolean value is not defined for sequence starting with an atomic value other than a boolean, number, or string So in contrast to my experience with writing predicates on XML it seems for maps I have to explicitly use the "exists" function e.g. ?locations?*[exists(?types?*[?name = 'foo'])] or a "some .. in" expression ?locations?*[some $m in ?types?* satisfies $m?name = 'foo'] Is there any more compact way to write such a check? What is the reason that the effective boolean value was not extended to give true for a sequence with a map? Current Thread How to write (existential) predicates with maps/Why is there no effective boolean value for a map? Martin Honnen martin.honnen@xxxxxx - 11 Feb 2019 12:09:26 -0000 <= Michael Kay mike@xxxxxxxxxxxx - 12 Feb 2019 14:40:18 -0000 Martin Honnen martin.honnen@xxxxxx - 12 Feb 2019 16:07:29 -0000 Michael Kay mike@xxxxxxxxxxxx - 12 Feb 2019 16:41:51 -0000 Liam R. E. Quin liam@xxxxxxxxxxxxxxxx - 13 Feb 2019 00:43:18 -0000 <- Previous Index Next -> Re: How could I detect/preven, Trevor Nicholls trev Thread Re: How to write (existential, Michael Kay mike@xxx Re: How could I detect/preven, Trevor Nicholls trev Date Re: How to write (existential, Michael Kay mike@xxx Month

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