Stephan, Jeremy - thank you! After playing around with Stephans comments in mind over this past week I happened to watch the last hangout just some hours ago... where Jeremy shows the update for the TiddlyFilters documentation tiddler... and then you post on this here! Neat coincidence!
Just a note: While the link Jeremy provides does go to some documentation I believe this github page<https://github.com/Jermolene/TiddlyWiki5/blob/6a63a459686f441d8bcdbe29f894cf671e5177de/editions/tw5.com/tiddlers/concepts/TiddlerFilters.tid>of his to the TiddlyFilters documentation is more explanatory. (NOTE to anyone reading this: THE LINK IS TO JEREMYS GITHUB CODE AND IT IS OBVIOUSLY NOT PUBLISHED/OFFICIAL YET.) Again, thank you Stephan and Jeremy! <:-) On Monday, March 10, 2014 7:26:51 PM UTC+1, Jeremy Ruston wrote: > > Hi Mat > > Sorry for the late reply. > > On Sun, Mar 2, 2014 at 10:12 PM, Mat <matia...@gmail.com <javascript:>>wrote: > >> (Note: It may be that all my questions are answered in the tiddler >> "TiddlerFilter Formal Grammar" but I do not yet understand how to read that >> tiddler at all.) >> > > I've added a note to the formal grammar tiddler for 5.0.9 making it > clearer that the grammar documentation is just provided for people who are > comfortable with the notation. > > >> >> Thus: >> >> *Filter* >> >> [tag[important]sort[title]] >> Ok, looks fair. Does it make sense to refer to "tag" as a filter, but >> "sort" rather as a "modifier" or is there another term, cause it's not a >> filter, is it? >> >> *Explanation given at tiddlywiki.com <http://tiddlywiki.com>* >> >> All tiddlers with the tag important sorted by title >> >> >> > Both `tag` and `sort` here are filter operators. > > >> [tag[important]!sort[title]] >> I get it, but it seems a bit contrieved that what really reads "not sort" >> does a reverse sorting. What's the reasoning behind this? >> >> > Do you mean that it should have been [sort![title]]? Or [sort[!title]]? > > The reason for not using the first alternative is that I through the > prefix was clearer. > > The reason for not using the second alternative is that it would have > restricted operands to not be able to start with an exclamation mark. > > > >> >> All tiddlers with the tag important reverse sorted by title[[one]] >> [[two]] [[three]] +[tag[tom]] >> Is a blank space interpreted as OR iff(!) the space resides between >> operands? ... and a space followed by an expressed operator (the +) is just >> a space? What's the general rule here? >> >> > I've updated the filter documentation for 5.0.9 to try to explain the way > that they are processed a bit better: > > > https://github.com/Jermolene/TiddlyWiki5/commit/6a63a459686f441d8bcdbe29f894cf671e5177de > > > >> Alternatively, shouldn't there be some kind of surrounding brackets >> around the three first operands? AND is normally not that powerful... >> but maybe + is not a regular AND but a super-AND spreading onto everything? >> >> > The filter syntax intentionally doesn't use brackets for grouping, as I > don't think non-technical users can readily understand them. The tiddler I > linked above attempts to explain the processing algorithm. > > >> BTW, are regular brackets, i.e ( and ) allowed at all actually? >> >> Any of the tiddlers called one, two or three that exist and are tagged >> with tom [[one]] [[two]] [[three]] [tag[tom]] >> (no question) >> Any of the tiddlers called one, two or three that exist, along with all >> of the source tiddlers that are tagged with tom [tag[tom]] [tag[harry]] >> -[[one][two][three]] >> Now, suddenly there ARE brackets for the minus sign, hmm... >> And there are no spaces between one, two, three. Does no space make logic >> AND? Is outer brackets required for this? >> Why does "tag" require outer brackets? Shouldn't tag[tom] be enough >> (making the word tag holy). >> >> > "tag" requires outer brackets because all filter operators require outer > brackets. As explained above, we merge adjacent brackets to indicate an > "AND". > > >> >> All tiddlers tagged either tom or harry, but excluding one, two and three >> [[MyTiddler]tags[]] >> Is this a *special* command or could someone explain how this translates >> into the explanation on the right. >> Does tags[] mean "all existing tags"? >> And does "written directly after and without space" (in this case >> referring the position of "tags[]") generally mean that we're talking about >> something concerning what is written before it (in this case [MyTiddler])? >> Must it be an operator written after? >> > > The [[MyTiddler]] part starts us off with a list of one entry, the title > "MyTiddler". The "tags" operator then returns the tags that are applied to > all the currently accumulated tiddlers, in this case just "MyTiddler". > > >> >> All tiddlers being used as tags on the tiddler MyTiddler >> [[MyTiddler]tagging[]] >> Isn't this the same as [tag[MyTiddler]] ? >> If this means "All tiddlers being tagged with MyTiddler" then why does >> the name "tagging" make more sense than the name "tagged". >> >> > [tag[MyTiddler]] is a synonym for [[MyTiddler]tagging[]], in that both > those expressions will return all the tiddlers that are tagged "MyTiddler". > They are different though, in the way that they work on the accumulated > list. > > the "tag" operator returns all the tiddlers in the list that have the > specified tag. > > The "tagging" operator returns all the tiddlers that are tagged by any of > the tiddlers in the list. > > Best wishes > > Jeremy > > > > >> >> All tiddlers being tagged with MyTiddler >> >> Will be really grateful if someone answers. >> >> Now curious to see if the two column format holds up. Preparing for mess. >> >> <:-) >> >> -- >> You received this message because you are subscribed to the Google Groups >> "TiddlyWiki" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to tiddlywiki+...@googlegroups.com <javascript:>. >> To post to this group, send email to tiddl...@googlegroups.com<javascript:> >> . >> Visit this group at http://groups.google.com/group/tiddlywiki. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > > > -- > Jeremy Ruston > mailto:jeremy...@gmail.com <javascript:> > -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at http://groups.google.com/group/tiddlywiki. For more options, visit https://groups.google.com/d/optout.
