collect() operator
|
This version is out of date, covering development as far as v4.2.5. It is maintained here only for inbound reference links from elsewhere. Jump to the current version of aTbRef. |
| A Tinderbox Reference File : Actions & Rules : Set creation operators : collect() operator |
collect() operator |
|
A v4.0.0 function collect() builds sets. (See collect_if() for a related new operator)
collect(where,attribute)
builds a set by visiting each note described by where and adding the value of the designated attribute to the set.
where may be any of {child,descendent,sibling,ancestor,all}. In addition, where may be argument that designates a particular (single) note other than this.
what can be any expression, but is typically an attribute.
For example,
collect(child,$Name)
constructs a set with the name of each child of the note.
For example,
collect(child(/agents/books),$Name)
does the same for children of the note 'books' inside 'agents'.
| Up: Set creation operators | |
| Next: collect_if() operator | |
Licensed under Creative Commons Attribution-Noncommercial-Share Alike 3.0 License
[See aTbRef CC licence Attribution/Waiver info info]
