xsl:for-each-group

select

expression

Expression to select nodes/values.

group-by?

expression

Groups together all items having the same value for a grouping key. The grouping key may have multiple values (a sequence of values) in which case the item is added to more than one group.

group-adjacent?

expression

Groups together all items having the same value for a grouping key, provided that they are also adjacent in the input sequence. This is useful when you need to wrap a new element around a sequence of related elements in the source documents, for example a consecutive sequence of <bullet> elements. In this case the grouping key must be single-valued.

group-starting-with?

pattern

Processes the items in the supplied sequence in turn, starting a new group whenever one of the items matches a specified pattern. This is useful, for example, when matching an <h2> element and its following <p> elements.

group-ending-with?

pattern

Processes the items in the supplied sequence in turn, closing the current group whenever one of the items matches a specified pattern. This is useful when matching a sequence of items in which the last item in the group carries some distinguishing attribute such as continued="no".

composite?

boolean

If set to yes, then the group-by and group-adjacent expressions may evaluate to a sequence, and grouping is done by comparing the entire sequence. If set to no, then when group-by evaluates to a sequence, the relevant item has multiple grouping keys and goes in multiple groups; with group-adjacent, a sequence-valued grouping key is then an error.

collation?

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