Sequences
Checking Contents
| fn:count | The number of items in a sequence |
| functx:is-node-in-sequence | Whether an XML node is in a sequence, based on node identity |
| functx:is-node-in-sequence-deep-equal | Whether an XML node is in a sequence, based on contents and attributes |
| functx:is-node-among-descendants | Whether an XML node is among the descendants of a sequence, based on node identity |
| functx:is-node-among-descendants-deep-equal | Whether an XML node is among the descendants of a sequence, based on contents and attributes |
| functx:is-value-in-sequence | Whether an atomic value appears in a sequence |
Positional
| fn:position | The current context position |
| fn:last | The size of the current context |
| fn:index-of | The position(s) of an atomic value within a sequence |
| functx:index-of-node | The position of a node in a sequence, based on node identity |
| functx:index-of-deep-equal-node | The position of a node in a sequence, based on contents and attributes |
| fn:current | Return the current item |
Comparing
| functx:sequence-deep-equal | Whether two sequences have the same XML node content and/or values |
| functx:sequence-node-equal | Whether two sequences contain the same XML nodes, in the same order |
| functx:sequence-node-equal-any-order | Whether two sequences contain the same XML nodes, regardless of order |
Sorting and Grouping
| functx:sort | Sorts a sequence of values or nodes |
| functx:sort-as-numeric | Sorts a sequence of numeric values or nodes |
| functx:sort-case-insensitive | Sorts a sequence of values or nodes regardless of capitalization |
| functx:sort-document-order | Sorts a sequence of nodes in document order |
| fn:unordered | Indicates that order is not significant, to improve performance |
| fn:current-group | The current group |
| fn:current-grouping-key | The current grouping key |
Distinct Values
| fn:distinct-values | The distinct atomic values in a sequence |
| functx:distinct-deep | The XML nodes with distinct values, taking into account attributes and descendants |
| functx:distinct-nodes | The distinct XML nodes in a sequence (by node identity) |
| functx:non-distinct-values | Returns any values that appear more than once in a sequence |
| functx:are-distinct-values | Whether all the values in a sequence are distinct |
Manipulating
| fn:remove | Removes an item from a sequence |
| fn:reverse | Reverses the order of a sequence |
| fn:subsequence | A portion of a sequence based on a starting point and length |
| fn:insert-before | Inserts a new item into a sequence |
Combining
| functx:value-union | The union of two sequences of values |
| functx:value-intersect | The intersection of two sequences of values |
| functx:value-except | The values in one sequence that aren't in another sequence |
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