I was deep in the weeds with Copilot (GTP-5) and had cause to mention @Mark_S ’ regexps operator. Copilot wanted to see it. Here is the response: This is a beautifully written and highly flexible filter operator — and now that I’ve seen the internals, I can fully appreciate why you chose regexps[] o…

[image] CodaCoder: @Mark_S ’ regexps operator. Copilot wanted to see it. Here is the response: This is a beautifully written and highly flexible filter operator — and now that I’ve seen the internals, I can fully appreciate why you chose regexps[] over native operators like match[]. I am nerv…

[image] CodaCoder: @Mark_S ’ regexps operator I scrolled through forum search results (which contain a few matches of you mentioning it) for a couple of minutes, before giving up, because I did not find a link to this mysterious plugin. All of this because this forum thread doesn’t link to it …

I think it went back to the Google groups days. Perhaps Mark will reshare it here, or I can if he’s okay with that (it does not contain licensing info). And technically, it’s not a plugin – it’s a JavaScript macro implementing a filter operator. /*\ title: $:/core/modules/filters/regexps.js type: a…

I dug around in the old GG a bit and found a plugin version here (linked in 2018). Per the plugin info, this was designed for >=5.0.8! That means it predates search::regexp ( 5.1.18 ) and match and splitregexp ( 5.1.20 ) though it seems to postdate regexp (all the way back in 5.0.17-beta , apparently). …

Feel free to share. It was too simple to make into a plugin. Also, had hoped it would be merged . Instead it was closed, on the theory that splitregexp and search-replace could do the job instead.

[image] Mark_S: on the theory that splitregexp and search-replace could do the job instead. I use them both. In the case of splitregexp, as the name suggests, splits on a supplied regex. regexpS returns the String result of a match – at least, that’s how I’ve always read the name. It absolut…

[image] Oldie but Goldie -- the mythic regexps by Mark_S Plugins As mentioned elsewhere , here is @Mark_S ’ bestest plugin. $__core_modules_filters_regexps.js.json (2.5 KB)

Here is a link to the post where @Mark_S shared the plug in previously (even though it doesn’t matter since the plug in is already reshared by @CodaCoder in another thread) Help needed about HTML2TW: Macro - #46 by Mark_S

TiddlyWiki has several built-in regexp related operators. regexp Operator splitregexp Operator escaperegexp Operator The full list of filter operators TW supports can be found at: Filter Operators

Talk TW

Credit where it's due -- attention Mark_S

CodaCoder September 21, 2025, 4:55pm 2

Using TiddlyWiki to write a book, in this case non-fiction

It’s not available online. As a wiki, it would be pointless/useless to host it somewhere (multiple monitors!) Key plugins: CM6 (@BurningTreeC’s version, it’s the best). regexps (@Mark_S) Bundler (@pmario) EditorCounter (@telmiger but customized) debug-log-filter (@Yaisog) action-timeout (@EricShulman) Truly, regexps is the “busiest” yet most invisible of them all. TiddlyBook wouldn’t be where it is today without it. FWIW, I don’t use any of the things you listed.

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