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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for the ‘ISO-8859’ Category

How isotopp became the online handle of Kristian Köhntopp

Posted by jpluimers on 2022/06/09

Like me, [Archive.is] Kristian Köhntopp is a nerd.

Unlike me, Kris bumped into character encoding issues for just about all his digital life. That started about the same time as mine, but again unlike me: he was way more involved in the technical aspects of it.

First a series of Tweets:

Read the rest of this entry »

Posted in ASCII, C++, Development, Encoding, EPS/PostScript, Font, ISO-8859, ISO8859, Power User, Software Development, Times New Roman | Leave a Comment »

Get it at a discount while it is hot: Delphi Thread Safety Patterns eBook by Dalija Prasnikar and Neven Prasnikar Jr.

Posted by jpluimers on 2022/06/01

Get the new [Wayback/Archive] Delphi Thread Safety Patterns eBook at a discount while it is hot:

Use Coupon Code: DTSPATT10 at checkout to get a $10 discount.
This promotional offer is valid through June 14.

Read the rest of this entry »

Posted in Delphi, Development, Encoding, ISO-8859, ISO8859, Mojibake, Multi-Threading / Concurrency, Software Development, UTF-8, Windows-1252 | Leave a Comment »

In this day and age, web sites with delivery back-ends still have Unicode issues: at least @Woonveilig, @Medireva and @PostNL still have trouble

Posted by jpluimers on 2022/02/09

Nowadays, some 35 years after the first Unicode ideas got drafted and 30+ years after the Unicode Consortium saw the light, UTF-8 is served my more than 95% of the web as shown in yesterday’s post UTF-8 web adoption is huge, closing 100%, but only soured up since around 2006..

I mentioned this:

It means that nowadays there is a very small chance you will see mangled characters (what Japanese call mojibake) when you’re surfing the web.

Serving UTF8 does not mean no unicode problems.

Below are some issues that happened not too long ago and still happen. I have reported them to all parties involved through web-care, but no response whatsoever, and this is bad: Unicode support beyond basic ASCII for the below systems are still broken even for relatively simple non-ASCII characters based in diacritics decorating a standard ASCII character.

Yes, I know the realm of encoding and code pages is a mess, especially when handling data in multiple layers of an application stack. That’s why I wrote this post in the first place, and have a whole encoding category of blog posts plus a Mojibake subset.

Read the rest of this entry »

Posted in Communications Development, CP850, Dark Pattern, Development, Encoding, ISO-8859, ISO8859, Mojibake, Software Development, Unicode, User Experience (ux), UTF-16, UTF-8, Windows-1252 | Leave a Comment »

Long read about Unicode: You, Me And The Emoji: Character Sets, Encoding And Emoji – Smashing Magazine

Posted by jpluimers on 2017/11/07

A well worth long rad:

We all recognize emoji. They’ve become the global pop stars of digital communication. But what are they, technically speaking? And what might we learn by taking a closer look at these images, characters, pictographs… whatever they are 🤔 (Thinking Face). We will dig deep to learn about how these thingamajigs work. Please note: Depending on your browser, you may not be able to see all emoji featured in this article (especially the Tifinagh characters). Also, different platforms vary in how they display emoji as well. That’s why the article always provides textual alternatives. Don’t let it discourage you from reading though! Now, let’s start with a seemingly simple question. What are emoji?

[WayBackYou, Me And The Emoji: Character Sets, Encoding And Emoji – Smashing Magazine

Via: [WayBack] Everything you ever wanted to know about characters, encodings, glyphs… and, oh yeah, emoji: bit.ly/2fNKeW3Long, rewarding read. – Ilya Grigorik – Google+

Here is just the ToC:

TABLE OF CONTENTS LINK

  1. Character Sets And Document Encoding: An Overview
    1. Characters
    2. Character Sets
    3. Coded Character Sets
    4. Encoding
  2. Declaring Character Sets And Document Encoding On The Web
    1. content-type HTTP Header Declaration
    2. Checking HTTP Headers Using A Browser’s Developer Tools
    3. Checking HTTP Headers Using Web-based Tools
    4. Using A Meta Element With charset Attribute
    5. An Encoding By Any Other Name
  3. What Were We Talking About Again? Oh Yeah, Emoji!
    1. So What Are Emoji?
    2. How Do We Use Emoji?
    3. Character References
    4. Glyphs
    5. How Do We Know If We Have These Symbols?
    6. The Great Emoji Proliferation Of 2016
  4. Emoji OS Support
    1. Emoji Support: Apple Platforms (macOS and iOS)
    2. Emoji Support: Windows
    3. Emoji Support: Linux
    4. Emoji Support: Android
  5. Emoji On The Web
    1. Emoji One
    2. Twemoji
  6. Conclusion

–jeroen

Posted in ASCII, Development, Encoding, ISO-8859, ISO8859, Shift JIS, Unicode, UTF-16, UTF-8, UTF16, UTF8, Windows-1252 | Leave a Comment »

Looking for more examples of Unicode/Ansi oddities in Delphi 2009+

Posted by jpluimers on 2017/09/25

At the end of April 2014, Roman Yankovsky started a nice [Wayback] discussion on Google+ trying to get upvotes for [Wayback] QualityCentral Report #:  124402: Compiler bug when comparing chars.

His report basically comes down to that when using Ansi character literals like #255, the compiler treats them as single-byte encoded characters in the current code page of your Windows context, translates them to Unicode, then processes them.

The QC report has been dismissed as “Test Case Error” (within 15 minutes of stating “need more info”) by one of the compiler engineers, directing to the [Wayback] UsingCharacterLiterals section of Delphi in a Unicode World Part III: Unicodifying Your Code where – heaven forbid – they suggest to replace #128 with the Euro-Sign literal.

I disagree, as the issue happens without any hint or warning whatsoever, and causes code that compiles fine in Delphi <= 2007 to fail in subtle ways on Delphi >= 2009.

The compiler should issue a hint or warning when you potentially can screw up. It doesn’t. Not here.

Quite a few knowledgeable Delphi people got involved in the discussion:

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Posted in Ansi, ASCII, Conference Topics, Conferences, CP437/OEM 437/PC-8, Delphi, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 7, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Development, Encoding, Event, ISO-8859, Missed Schedule, QC, SocialMedia, Software Development, Unicode, UTF-8, Windows-1252, WordPress | Leave a Comment »

 
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