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In-reply-to » is there consensus on what characters should(n't) be allowed in nicks? i remember reading somewhere whitespace should not be allowed, but i don't see it in the spec on twtxt.dev — in fact, are there any other resources on twtxt extensions outside of twtxt.dev?

@lyse@lyse.isobeef.org @movq@www.uninformativ.de bbycll’s nickname regex is /^([-_\p{N}\p{L}])+$/iu because i don’t like how english-centric only allowing ascii letters/numbers is though this only applies to local users as of now, currently all nicknames are tolerated when parsing remote feeds and i just do mentions how yarn does (just the feed url)

in the wild, i’ve noticed a texedus feed with spaces in the nick (where its spec explicitly disallows whitespace in the nick) and feeds with other symbols in the nick too. honestly, i think we should just tolerate arbitrary nicknames for sake of user expression (while stripping or converting unreasonable characters) and just leave them out of mentions

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In-reply-to » is there consensus on what characters should(n't) be allowed in nicks? i remember reading somewhere whitespace should not be allowed, but i don't see it in the spec on twtxt.dev — in fact, are there any other resources on twtxt extensions outside of twtxt.dev?

@zvava@twtxt.net Good question. This is the spec, I think:

https://twtxt.dev/exts/metadata.html#nick

It doesn’t say much. 🤔

In the wild, I’ve only seen “traditional” nick names, i.e. ASCII 0x21 thru 0x7E.

My client removes anything but r'[a-zA-Z0-9]' from nick names.

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In-reply-to » @prologic Hmm, good question. I haven’t checked the market, I got mine from someone I know. But to be honest, I’d suspect that buying a used one is actually your best shot, because there is virtually no market for these devices anymore, meaning new ones are very, very expensive. 🫤

@prologic@twtxt.net It’s quite similar to how escape sequences work in a terminal. ASCII text is printed as ASCII text and then an escape sequence can make it bold or underline and so on. Other escape sequences allow you to say “the following $n bytes are part of a bitmap image”, and then this gets printed at whatever the current position is (somewhat similar to SIXEL in a terminal).

It’s just that the units are a bit weird, because this is all done in bloody inch. 😅

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In-reply-to » Sooooooooo, things happened, and I now have a dot matrix printer again. 😍😂

This is why I love tech from that era.

Write bytes to a parallel port and stuff happens. If it’s just ASCII bytes, then it will print ASCII text. Even the simplest programs can use a printer this way.

With a little bit of ESC/P, you can print images and other fancy stuff. That’s what I did this morning – never worked with ESC/P before, now I can print images. It’s not that hard.

Hayes-compatible modems are similar: Write some AT commands to the serial port and the modem does things. This isn’t even arcane knowledge, it’s explained in the printed manual.

Maybe I’m wearing rose-tinted glasses here, but I think with all this old stuff, you get useful results very quickly and the manuals are usually actually helpful. It’s so much easier to get started and to use this hardware to the full extent. Much less complexity than what we have today, not a ton of libraries and dependencies and SDKs and cloud services and what not.

https://movq.de/v/4bd16cb3c7/tux1.jpg

https://movq.de/v/4bd16cb3c7/tux2.jpg

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Pessoas da comunidade brasileira de #ProgramaçãoCriativa por muitos anos fizeram encontros sob o nome promovido pela Fundação Processing, os chamados #ProcessingCommunityDay, fizemos encontros em várias cidades e então depois de 2020, com a pandemia do COVID-19, fizemos três eventos nacionais muito inspiradores em 2021, 2022 e 2023 (vide https://compoetica.github.io/links/)

Ano passado não conseguimos fazer e este ano pretendemos retomar, só que usando outro nome: #Compoética. Vamos aos poucos divulgar mais sobre o encontro brasileiro de programação criativa em https://compoetica.github.io/CP2025/

Meus agradecimentos profundos ao @guilhermesv@guilhermesv que dedica generosamente um enorme esforço para organizar esses eventos da comunidade e cria o design e peças de comunicação sempre emocionantes de lindos.

Video

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Malcolm: 6 usability improvements in GCC 15
Over on the Red Hat Developer site, David Malcolm has an article\
about improvements in GCC 15, specifically focusing on the diagnostic
information that the compiler emits. This includes ASCII art with a “⚠️”
warning emoji to display the execution path when it detects a problem (like
an infinite loop in one of his examples), better C++ template errors,
machine-readable diagnostics using [Static\
Analysis R … ⌘ Read more

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In-reply-to » Hmmmm, I somehow run into an encoding problem where my inserted data end up mangled in the database. But, both SQLite and Go use UTF-8. What's happening here? :-?

@movq@www.uninformativ.de Non-ASCII characters were broken. Like U+2028, degrees (°), etc.

Turns out I used a silly library to detect the encoding and transform to UTF-8 if needed. When there is no Content-Type header, like for local files, it looks at the first 1024 bytes. Since it only saw ASCII in that region, the damn thing assumed the data to be in Windows-1252 (which for web pages kinda makes sense):

// TODO: change default depending on user's locale?
return charmap.Windows1252, "windows-1252", false

https://cs.opensource.google/go/x/net/+/master:html/charset/charset.go;l=102

This default is hardcoded and cannot be changed.

Trying to be smart and adding automatic support for other encodings turned out to be a bad move on my end. At least I can reduce my dependency list again. :-)

I now just reject everything that explicitly specifies something different than text/plain and an optional charset other than utf-8 (ignoring casing). Otherwise I assume it’s in UTF-8 (just like the twtxt file format specification mandates) and hope for the best.

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In-reply-to » Check out the Nex Protocol. It's designed to be even simpler than Gemini and Gopher. What do you think? Could be great to host a twtxt feed on.

@shreyan@twtxt.net The only problem is that there is no such thing as “plain text”. Is it ASCII? UTF-8? DOS or UNIX line endings? Something else?

.txt or “plain text” are ambiguous terms, I’m afraid. 🫤

Other than that, it looks neat and interesting. 😅

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** What is an addressing mode? **
In a recent post I referenced addressing modes. But what the heck are they!?

Setting the stage

The instruction register holds the program instruction that is currently being run.

A fixed number of bits within the instruction register represent the operation, e.g. “op. code” — examples of these instructions include things like add, subtract, load, and store. We can imagine the instruction register like this:

[![ASCII diagram of … ⌘ Read more

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In-reply-to » My kid just uncovered a bug in a program I wrote by grabbing my laptop and smacking the keyboard a bunch. Biological input fuzzing; a real-life chaos monkey.

“ç”, I think. Anything above 7-bit ASCII would’ve done it, though.

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I had this notion yesterday of ignoring whitespace completely in !txtvm. this could allow for some ascii-art patterns in the output (similar to what some IOCC entries do). #halfbaked

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the idea would be to build and share tiny 6.5 bit programs encoded as printable ascii characters. this could then in turn be read by a virtual computer to do things like paint a picture or compose a piece of music. #halfbakedideas

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a 6.5 bit fantasy computer, whose bytecode representation can be represented entirely as printable ascii characters. The first 6 contain standard data space, with the 7th bit used to represent one of 32 values. #halfbakedideas

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