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Update filter docs

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Jeremy Ruston 2013-05-31 13:32:34 +01:00
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editions/tw5.com/tiddlers/concepts/TiddlerFilters.tid
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title: TiddlerFilters
tags: docs concepts tags: docs concepts
title: TiddlerFilters
modified: 201305311232
Filters are used in TiddlyWiki to choose tiddlers by specifying simple match criteria. Filters are used in TiddlyWiki to choose tiddlers by specifying simple match criteria.
@ -55,6 +56,12 @@ The operands available with the `is` operator are:
* ''missing'': selects all missing tiddlers * ''missing'': selects all missing tiddlers
* ''orphan'': selects all orphan tiddlers * ''orphan'': selects all orphan tiddlers
! Indirect Operands
If a filter operator is written with curly brackets around the operand then it is taken to be a TiddlerTextReference to the actual value. For example:
''[search{$:/temp/search}]'': selects all tiddlers containing the string contained in the tiddler titled ''$:/temp/search''.
! Runs ! Runs
Operators are combined into runs that function as logically ANDed expressions by bashing them together and merging the square brackets: Operators are combined into runs that function as logically ANDed expressions by bashing them together and merging the square brackets: