3rd February 2015 at 7:05pm
| purpose | find which titles in a list field precede the input ones |
|---|---|
| input | a selection of titles |
| parameter | T=a tiddler title |
| output | a selection containing each title that immediately precedes each of the input titles in the list field of T |
Learn more about how to use Filters
Each input title is processed in turn, and its predecessor is located in the list field and appended to the output. If a title is not listed in the field, or is the first item there, then it contributes nothing to the output.