Thanks Mat, I appreciate your feedback, Best wishes
Jeremy On Tue, Mar 11, 2014 at 2:14 AM, Mat <[email protected]> wrote: > 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 <[email protected]> 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 [email protected]. >>> To post to this group, send email to [email protected]. >>> >>> Visit this group at http://groups.google.com/group/tiddlywiki. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> >> >> -- >> Jeremy Ruston >> mailto:[email protected] >> > -- Jeremy Ruston mailto:[email protected] -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/tiddlywiki. For more options, visit https://groups.google.com/d/optout.
