[tw] Re: AdvancedFilterTiddlers Plugin (supporting fields and AND statements)
I think syntax is never something everyone will agree with. Personally I think AND and OR statements are too 'programmy', set notation is too 'mathsy'. A lot of TiddlyWiki users can't do javascript but are familiar with the wiki syntax which this syntax closely resembles. You *definitely* without a doubt get a lot more power with how you have developed MatchTags but in the example you give above as I look at that for the first time I would say that is extremely complicated to get your head round with what your filter actually does. Being forced to write the filter in a less expressive syntax I would argue encourages a better end result, where if you came back to it a year later you wouldn't think what on earth was I doing here which you might be with your above example!! :). In your above algebraic formula, I am pretty sure that could be simplified (although right now I dont have the energy to do so and could maybe be expressed the same in a longer more readable filter (well in my opinion anyway): eg. something like this... [tag[foo]tag[!mumble]tag[!gronk]] [tag[foo]tag[!snork]] [tag[bar]tag[!mumble]tag[!gronk]] [tag[bar]tag[!snork]] [sort[-priority]] If the filter cannot be expressed in such a way it might suggest you need to arrange your data better - eg. invent a new tag for example. Also in your syntax how would you allow it to work for fields without it becoming really incomprehensible? eg. if you wanted everything tagged with foo or bar with the field mumble set to gronk what would this look like? I think this a really interesting and valuable conversation to have so lets keep it going.. Jon On Dec 8, 5:40 am, Anthony Muscio anthony.mus...@gmail.com wrote: Eric, I agree you have a great tool in MatchTags Plugin, However as posted before I do not know how to use it with my Tags that have leading special characters so I cant use it at all, practically. Great work never the less. -- You received this message because you are subscribed to the Google Groups TiddlyWiki group. To post to this group, send email to tiddlyw...@googlegroups.com. To unsubscribe from this group, send email to tiddlywiki+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/tiddlywiki?hl=en.
[tw] Re: AdvancedFilterTiddlers Plugin (supporting fields and AND statements)
Wow. Interesting way to approach the code. Nice work. I guess with this filtering thing it's not really a core requirement, hence why there are 3+ different plugins to solve the problem. What amount of filtering syntax would you say is definitely a core requirement? I can't see that the (int) (float) etc. stuff is particularly common. J. On Dec 7, 1:35 pm, rakugo jdlrob...@gmail.com wrote: I've been getting increasingly frustrated with the TiddlyWiki filtering in the core in that it * does not support and filtering * does not support fields I wanted a filtering mechanism that worked with DefaultTiddlers in particularly I was finding with my TiddlyWeb development I increasingly wanted to use the filter [server.bag[bagname]] in my DefaultTiddlers tiddler where server.bag is a custom field TiddlyWeb defines. I was determined to use a syntax such as [tag[tag1]tag[tag2]] for and filters as it seemed to quite readable syntax. Turns out it was a bit of a can of worms, I noticed lots of people have tried to solve this problem and problems faced involved code size, code readability and from a development point of view issues with defining regular expressions to match the different syntaxes. I've been a bit alternative and have created a version of the function without any use of regular expressions, instead resorting to defining a finite state automata (http://en.wikipedia.org/wiki/Finite- state_machine) and in doing so proved my self wrong when I said several years ago at uni that this will never be useful to me. It's pretty powerful and I imagine it is very useful in conjunction with the list macro already in the core, so I imagine it's not just me that will find this useful. I've constructed a TiddlyWiki which explores the possibilities of what you can do with this plugin:http://www.jonrobson.me.uk/development/AdvancedFilterTiddlersPlugin/i... Word of warning - the plugin overrides the sortTiddlers and filterTiddlers core functions. Hope someone else finds this useful. Jon -- You received this message because you are subscribed to the Google Groups TiddlyWiki group. To post to this group, send email to tiddlyw...@googlegroups.com. To unsubscribe from this group, send email to tiddlywiki+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/tiddlywiki?hl=en.
[tw] Re: AdvancedFilterTiddlers Plugin (supporting fields and AND statements)
* does not support and filtering * does not support fields I was determined to use a syntax such as [tag[tag1]tag[tag2]] http://www.TiddlyTools.com/#MatchTagsPlugin provides a robust tag filtering syntax using full Boolean-logic (AND, OR, NOT, plus nested parentheses as needed). You can also use regular expressions to match *patterned* tags (e.g., use foo.* to match any tag starting with foo). Also, to sort the results by *any* tiddler field, you can use the TW *core* syntax: [sort[fieldname]] (ascending) or [sort[-fieldname]] (descending) note: although custom fields are entered and stored as text strings, if the field values are numeric digits, then sorting *will* be performed numerically (e.g., 1, 2, 3...10,11, etc.) rather than by text comparison (e.g. 1, 10, 11, 2, 3, etc.) Thus: [tag[(foo OR bar) AND NOT (mumble AND gronk OR snork)]][sort[- priority]] enjoy, -e Eric Shulman TiddlyTools / ELS Design Studios -- You received this message because you are subscribed to the Google Groups TiddlyWiki group. To post to this group, send email to tiddlyw...@googlegroups.com. To unsubscribe from this group, send email to tiddlywiki+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/tiddlywiki?hl=en.
