There is an idea about using hash # tags, extending your idea <#todo notes> could in fact be a hash tag #todo, the # is something you do not use as a variable, procedure or function so that it always returns nul, but it could be used as an attribute say to a hash tag procedure <<# todo>> that lists all tiddlers containing the hash tag #todo.
- Observation, hash tags work here
[Edited] If you place <# message here> or <#hashtag message here> in any non-existing parameter, of any filter operator it will make no difference and the content is not limited much; Only <>[]| cause a problem sometimes;
{{{ [tag[TableOfContents],<# "note" [[to]] [[ ]] {{ }} !>] }}}
Thus for reoccurring or reusable comments you could use #n as discussed above, to save repeating yourself, and if necessary turn it into a visible note;
\procedure #1() all contents below
\function #2() "More notes"
{{{ [tag[TableOfContents],<#1>] }}}
<<#1>>
{{{ [tag[TableOfContents],<#2>] }}}
Show #2: <<#2>>
- We could even place a condition, eg a verbose switch, in the procedure.
- Both procedures and functions (filters) offer different opportunities to include other content, that you can only see if used as a stand alone variable.