Re: [basex-talk] xquery:eval() - handling of &

Hi Andrew,

'contains(.,">")', … return true, as expected.

The difference is that < and > don’t have to be encoded if they are used in strings. You can write…

contains('', '<')

…but the following query is invalid:

contains('<', '&')

I can get the expected result if I double-escape the entity: 'contains(.,"&amp;amp;")'

You can use the string constructor syntax, it’s often better readable:

xquery:eval( ``[contains(., "&amp;")]``, map { '': <foo>{ ``[&<]`` }</foo> } )

With recent versions of BaseX, you can also use simple backticks (that’s XQuery 4 syntax, it will be documented soon). The following queries are equivalent:

`&` ``[&]`` "&amp;"

Hope this helps, Christian