10724 2010-09-24 15:45:18 +0000 [XPath30] Editorial: Examples for inline function closures 2011-09-10 18:33:31 +0000 1 1 1 Unclassified XPath / XQuery / XSLT XPath 3.0 Member-only Editors Drafts PC Windows NT RESOLVED FIXED P2 minor --- 1 oliver jonathan.robie jim.melton public-qt-comments oldest_to_newest 39295 0 oliver 2010-09-24 15:45:18 +0000 This also applies to XQuery 1.1 The last example in section 3.1.7 seeks to demonstrate that inline functions hold the values of any in-scope variables that they use: This example creates an inline function that returns the xs:integer value 7, i.e.: the value of the variable $a from the scope of the inline function expression: let $a := 7 return let $f := function() { $a } return let $a := 8 return $f() Firstly, The outer variable $a never has a value other than 7, so this is not a very good example. Secondly the extra return expressions are not necessary in XQuery; they could be rewritten as ","s in XPath. Thirdly, there is an errant ":" in the text introducing this. Fourthly, all the examples are introduced as creating inline functions. They in fact create function items. Finally, this example should probably just return the function, not evaluate it I suggest the following example instead (Much neater examples can be created in XQuery!): This example creates a sequence of function items each of which returns a different node from the default collection. collection()/(let $a := . return function() { $a }) 56615 1 jonathan.robie 2011-09-10 18:33:31 +0000 Nice! I just added this to the internal Working Draft. Thanks for the great example.