<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">I know it’s a little old-fashioned to recommend a book, but you might learn a thing or two about regexes from Mastering Regular Expressions by Friedl. It’s an OReilly book. Mine’s copyright 2002, second edition, about 430 pages deep. Still on my reference shelf after 20 years.<br><br><div dir="ltr"><span style="font-size: 13pt;">/————————————————————/</span><div><span style="font-size: 13pt;">For encrypted mail use jgpfersich@protonmail.com</span><div>Get a free account at ProtonMail.com</div><div>Web: https://objectnets.net and https://objectnets.org</div></div><div>https://datascilv.com https://datascilv.org</div><div><br></div></div><div dir="ltr"><br><blockquote type="cite">On Mar 29, 2020, at 11:42, Thiede, Christoph <Christoph.Thiede@student.hpi.uni-potsdam.de> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
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<p>Hi Regex friend :-)</p>
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<p>I assume you are referring to Regex-Core (thanks for the clarification, Levente!).</p>
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<p>Yes, regexes are indeed very nerdy fun, though I recommend to use them rarely in production stuff, they just don't provide a really good readability. I don't know how experienced you are with regex in general, but I can recommend you regex101.com if you
did not know it yet. I'm not sure what you are looking for in detail, but if you're interested in further examples, here are a few ones:</p>
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</p>
<p><a href="http://forum.world.st/The-Inbox-Tests-ct-429-mcz-td5113665.html#:~:text=allRangesOfRegexMatches" class="OWAAutoLink" id="LPlnk886421" previewremoved="true">http://forum.world.st/The-Inbox-Tests-ct-429-mcz-td5113665.html#:~:text=allRangesOfRegexMatches</a> (see
#<span>testUndefinedVariable and</span> #<span>testUnusedVariable).</span></p>
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<p><span></span>In <span>Regex-Core-ct.55 f., I extended the implementation of lookaround expressions in Smalltalk.</span></p>
<p><span style="font-size: 12pt;">(This is a small piece of art:</span><br>
</p>
<p><span></span></p>
<div>'(?<=(?<!n''t\s+)l[o]ve\s+)\w+' asRegex matchesIn: 'I love Squeak. I don''t love C++. I love Smalltalk.'.</div>
<div>:-))</div>
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And in as near as possible future, I will commit support for \x and \p as described
<a href="https://www.regular-expressions.info/unicode.html#:~:text=Unicode%20Categories" class="OWAAutoLink">
here</a>. Stay tuned!
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<p>Best,</p>
<p>Christoph</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>Von:</b> Squeak-dev <squeak-dev-bounces@lists.squeakfoundation.org> im Auftrag von Chris Cunnington <brasspen@gmail.com><br>
<b>Gesendet:</b> Sonntag, 29. März 2020 18:08:44<br>
<b>An:</b> The general-purpose Squeak developers list<br>
<b>Betreff:</b> Re: [squeak-dev] Question about VB-Regex</font>
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<div>You posted an #asRegex example in talking to Eliot about inlining recently. I’ve printed it out and plan to play with it next week.
<div class="">If you have any more thoughts or examples using the VB-Regex package, I hope you’ll post some here. I’m very interested in this stuff. </div>
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<div class="">Chris <br class="">
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<div class="">On Mar 29, 2020, at 9:44 AM, Thiede, Christoph <<a href="mailto:Christoph.Thiede@student.hpi.uni-potsdam.de" class="">Christoph.Thiede@student.hpi.uni-potsdam.de</a>> wrote:</div>
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<div style="margin-top: 0px; margin-bottom: 0px;" class="">Hi all,</div>
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<div style="margin-top: 0px; margin-bottom: 0px;" class="">as you may have noticed, I have proposed some new features for Regex-Core in recent past, and I found a lot of fun in working with this clean architecture for which I still see a lot of potential for
expansion (for example, I'm currently having basic support for<span class="Apple-converted-space"> </span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;" class="">U</span><span style="font-family: Calibri, Helvetica, sans-serif, EmojiFont, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;" class="">nicode</span> matches
in my pipeline, this is currently blocked by<span class="Apple-converted-space"> </span><a href="http://forum.world.st/Unicode-td5113495.html" class="OWAAutoLink">this thread</a>. For the future, I also would like to consider named groups & depending features).
But before I will invest unnecessary time into the Regex-Core package, I have one question:</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class=""><br class="">
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<div style="margin-top: 0px; margin-bottom: 0px;" class="">Recently I stumbled upon VB-Regex, which looks very similar to Regex-Core. Has this been a predecessor of Regex-Core, is it a successor or are they two independent forks? I could not find any information
about this topic on the web.</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">Is my assumption correct that Regex-Core is the regex "state of the art" within Squeak?</div>
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<div style="margin-top: 0px; margin-bottom: 0px;" class="">Best,</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">Christoph</div>
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