RE: https://mastodon.social/@mikaeru/115502251163025356

The latest post on the Unicode Consortium blog gives an exhaustive list of all the new Unicode properties in regular expressions (regex), and explains why all the supported properties are so important and can be so useful:

https://blog.unicode.org/2026/03/uts-18-more-unicode-properties-in.html

#Unicode #Properties #Regex #RegularExpressions

I … I think I fell into a hole.

Said hole seems to be #XML + #XSLT shaped.

XSLT’s ability to translate XML into #HTML and / or plain text … is — in a word —AMAZING to me.

Combine #XPath selection and … WOW!

I feel like this is going to be a game changer for some things that I do. Similar to #regularExpressions were 25+ years ago.

GNU awk

From awk with love

Quote

This is a major release. The relevant part of the NEWS file is appended
below. A diff file from the previous release is not available
The online manuals have been updated.

https://www.gnu.org/software/gawk/

https://lists.gnu.org/archive/html/info-gnu/2026-02/msg00011.html

#awk #GNUawk #regular #expressions #RegularExpressions #regex #programming #GNU #NotUnix #OpenSource #POSIX

Pyparsing-based regex inverter (a static page written using PyScript) is live at https://ptmcg.github.io/regex_inverter/ #python #pyparsing #regularexpressions #regex
PyParsing Regex Inverter

@bytebro

Are you sure that it was #Wikipedia? Because this is the sort of thing that has endless modern GitHub and #StackExchange posts, and a claim that there was an official government regular expression at one point in the past.

https://stackoverflow.com/a/51885364/340790

https://github.com/stemount/gov-uk-official-postcode-regex-helper/blob/master/README.md

Whereas Wikipedia has had the British Standard mentioned for almost 20 years at this point, not 15.

Before then it had a haphazard half-arsed list of #RegularExpressions, where every so often someone had come along and appended text saying that "well, actually, the aforegiven does not work; *this* is the *more complete* regular expression".

https://en.wikipedia.org/wiki/Special:Diff/23157377

It had grown 4 times in that way with a succession of invented regular expressions, each one described as "more complete" than the last, by the time someone came along with the #BS7666 one in 2006 and switched from Perl syntax to standard POSIX syntax.

https://en.wikipedia.org/wiki/Special:Diff/89001370

The "Well, actually"s were gradually approaching it.

#postcodes

RegEx for matching UK Postcodes

I'm after a regex that will validate a full complex UK postcode only within an input string. All of the uncommon postcode forms must be covered as well as the usual. For instance: Matches CW3 9SS ...

Stack Overflow

The episode came out on time (Saturday) but this announcement is a bit late because of travel. It’s another episode of our #Technology #Podcast, @RuntimeArguments.

Jim (@jammcq) did the research and does the presentation in this episode; Wolf (@YesJustWolf) asks the questions! This episode, Jim tells us all about #POSIX! What does the word mean, where does the idea come from, how did we get here, how it touches you today, and if it should influence what tools you use, how you use them, and anything you build on top of them!

Get it in all the usual places. Send us feedback to [email protected].

Also, #RegularExpressions are a programming "cheat code". They should be in your toolbox!

[Follow-Up]

Reference links:

- UTS #18: Unicode Regular Expressions
🔗 https://www.unicode.org/reports/tr18/

- UTS #18: Unicode Regular Expressions [Proposed Update]
🔗 https://www.unicode.org/reports/tr18/proposed.html

- Issues - tonton-pixel/unicopedia-plus - Codeberg.org
🔗 https://codeberg.org/tonton-pixel/unicopedia-plus/issues

#Unicopedia #Unicode #Regex #RegularExpressions

UTS #18: Unicode Regular Expressions

Raku: The match of a regex is automatically stored in $/, and this variable then also provides access to the text before ($/.prematch), to the text after ($/.postmatch), and to the match's position ($/.from and $/.to). Nice.

https://docs.raku.org/language/regexes#Literals_and_metacharacters

#raku #rakulang #regularexpressions #regex #regexes

Regexes | Raku Documentation