Repeat for email ... On Wednesday, 25 September 2019 14:11:43 UTC+2, @TiddlyTweeter wrote: > > The flex of TW filter syntax is RICH, USEFUL, DAUNTING & WEIRD. > > Taking *Regular Expressions* as an example... Five ways to match titles > using regular expressions in TiddlyWiki Advanced Search filters. > > The various TW operators provide several ways to match. > > *They are not all fully documented. * > > And they do NOT work all the same way. BUT ... > > *Example Tiddler Titles beginning "b or B" * > >> ... in TiddlyWiki.com Advanced Search: Filter. > > *ALL produce the same result.* > > >> Search Operator <https://tiddlywiki.com/#search%20Operator> -- case >> insensitive by DEFAULT >> [search:title:regexp[^b]] >> >> Field Operator <https://tiddlywiki.com/#field%20Operator>-- variant case >> match via CHARACTER CLASS (NOTE: variable NOT needed for [...] brackets for >> Character Class) >> [field:title/^[bB]/] >> >> Regexp Operator <https://tiddlywiki.com/#regexp%20Operator>-- case >> insensitive via FLAG >> regexp:title[(?i)^b]] >> >> Regexp Operator -- variant case match via capturing group ALTERNATION >> [regexp:title[^(b|B)]] >> >> Regexp Operator -- match using VARIABLE >> [regexp:title<var-b-first>] >> > You need create a global macro (Tiddler named anything, tagged ... >> *$:/tags/Macro)* containing ... >> > \define var-b-first() ^[bB] >> > > TT >
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