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Merge remote-tracking branch 'origin/tiddlywiki-com'
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caption: TiddlyStow (experimental)
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caption: ~TiddlyStow (experimental)
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color: #FF8A65
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created: 20230403170650008
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delivery: Saver
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@ -18,9 +18,9 @@ The <<.op substitute>> operator replaces any placeholders in the input titles in
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# variables
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|placeholder syntax|description|h
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|`$n$`|Text substitution of a parameter provided to the operator, where n is the position of the parameter starting with 1 for the first parameter. Unmatched placeholders pass through unchanged.|
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|`$(varname)$`|Text substitution of a variable. Undefined variables are replaced with an empty string.|
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|`${ filter expression }$`|Text substitution with the first result of evaluating the filter expression. |
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|`$n$`|Text substitution of a parameter provided to the operator, where n is the position of the parameter starting with 1 for the first parameter. Unmatched placeholders pass through unchanged. |
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|`$(varname)$`|Text substitution of a variable. Undefined variables are replaced with an empty string. |
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|`${ filter expression }$`|Text substitution of the first result of evaluating a filter expression. In other words, if the filter returns multiple titles only the first one will be used. |
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<<.tip """Placeholders that contain square bracket characters are not valid filter syntax when used directly in a filter expression. However they can be provided as input to the <$macrocall $name=".op" _="substitute"/> operator as text references or variables""">>
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