33 lines
1.2 KiB
Plaintext
33 lines
1.2 KiB
Plaintext
created: 20150220152540000
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modified: 20210629215024053
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tags: [[Filter Syntax]]
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title: Filter Parameter
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type: text/vnd.tiddlywiki
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<$railroad text="""
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( "[" [:{/"anything but ]"/}] "]"
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"{" [:{/"anything but }"/}] "}"
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"<" [:{/"anything but >"/}] ">"
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)
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"""/>
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The parameter to a [[filter operator|Filter Operators]] can be:
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;<<.def hard>>
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: `[like this]`
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: The parameter is the exact text that appears between the square brackets.
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;<<.def soft>>
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: <<.def indirect>>
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:: `{like this}`
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:: The parameter is the text indicated by the [[text reference|TextReference]] whose name appears between the curly brackets, i.e. a [[field|TiddlerFields]] of a specified tiddler, or the value of a property of a specified [[data tiddler|DataTiddlers]].
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: <<.def variable>>
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:: `<like this>`
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:: The parameter is the current value of the [[variable|Variables]] whose name appears between the angle brackets. Macro parameters are <<.em not>> supported up to and including ~TiddlyWiki v5.1.23.
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::<<.from-version "5.2.0">> Literal macro parameters are supported. For example: `[<now [UTC]YYYY0MM0DD0hh0mm0ssXXX>]`.
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<<.from-version "5.1.23">> Filter operators support multiple parameters which are separated by a ` , ` character.
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For example: `[param1],[param2]` or `<param1>,{param2}`
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