TiddlyWiki5/editions/tw5.com/tiddlers/filters/syntax/Else Filter Run Prefix.tid

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created: 20230318142408662
from-version: 5.1.23
modified: 20230322140756821
rp-input: all titles from previous filter runs
rp-output: if the filter output so far is an empty list then the output titles of the run are [[dominantly appended|Dominant Append]] to the filter's output.<br>if the filter output so far is not an empty list then the run is ignored.
rp-purpose: the filter run is only evaluated if the filter output of all previous runs so far is an empty list
tags: [[Named Filter Run Prefix]]
title: Else Filter Run Prefix
type: text/vnd.tiddlywiki
<$railroad text="""
\start none
\end none
( ":else" | - )
[[run|"Filter Run"]]
"""/>
This prefix has a [[Shortcut Filter Run Prefix]] symbol `~run`