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Update substitute operator docs

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Fixes #7609
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Jeremy Ruston 2023-07-15 17:58:14 +01:00
parent ec00dc5042
commit 3a90c37816
1 changed files with 3 additions and 3 deletions
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editions/tw5.com/tiddlers/filters/substitute Operator.tid
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@ -20,7 +20,7 @@ The <<.op substitute>> operator replaces any placeholders in the input titles in
|placeholder syntax|description|h
|`$n$`|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. |
|`$(varname)$`|Text substitution of a variable. Undefined variables are replaced with an empty string. |
|`${ filter expression }$`|Text substitution with the first result of evaluating the filter expression. |
|`${ filter expression }$`|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. |
<<.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""">>