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

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Archive for the ‘Unicode’ Category

Jon Skeet’s speech “Back to basics” is really a good watch – via Jørn Einar Angeltveit G+

Posted by jpluimers on 2015/07/15

Thanks Jørn Einar Angeltveit for sharing this a while ago:

A session by Jon Skeet and Tony the Pony (which has strong teeth) presented during the Polish DevDay 2013 in Kraków, Poland.

+Jon Skeet’s speech “Back to basics” is really a good watch.

In a funny way, he explains why the simplest fundamentals of computer software text, dates and numbers can cause some real headace for the programmer…

In case you didn’t know: Jon Skeet is “Chuck Norris” on

The subtitle is “the mess we’ve made of our fundamental data types”.

Some of the topics covered:

  • people
  • numbers and storage formats
  • strings and encodings
  • dates, times and time zones
  • scope things narrowly (YAGNI) in a conscious way, and understand beyond what you implement

He for instance shows that the fundamentals are both very much unknown by many among us, and less universal than we think.


via +Jon Skeet’s speech “Back to basics” is really a good watch. In a funny way,….

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Posted in .NET, C#, Delphi, Development, Encoding, i18n internatiolanization and L10 Localization, Java, Java Platform, Pascal, Scripting, Software Development, Unicode | 2 Comments »

20 resources on migrating to Unicode with Delphi | Software on a String

Posted by jpluimers on 2015/07/08

Great post by Marjan Venema when you need to migrate your old Delphi programs to the modern Delphi world: 20 resources on migrating to Unicode with Delphi | Software on a String.

I’m glad that some of the links overlap with what I posted and presented in the past at:

Well done Marjan!


Posted in Ansi, ASCII, Delphi, Delphi 2, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 3, Delphi 4, Delphi 5, Delphi 6, Delphi 7, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Development, Encoding, Software Development, Unicode | Leave a Comment »

[NL] encoding blijft moeilijk, waarom toch? (dit keer in een brief van @xs4all)

Posted by jpluimers on 2015/02/24

Hoe moeilijk kan het toch zijn om je encoding goed te doen.

Deze keer uit een brief van xs4all:

encoding foutje...

encoding foutje…

Als je een trema in een brief zet, dan controleer je toch even dat die ook goed op de brief wordt afgedrukt?

Een “inverted question mark” (deze keer samen met een oe ligature) duidt vrijwel altijd op een encoding probleem.

Ook bij de bevestigings email ging het mis:

bij de beï¿œindiging van uw oude abonnement.

En jawel hoor: de encoding daar was geen UTF-8:

Content-Type: text/plain; charset=iso-8859-15
Content-Transfer-Encoding: 8bit

Even een korte inspectie om te zien of het een simpele UTF-8 naar ISO-8859-15 conversie fout betreft: nee.

karakter iso-8859-15
Unicode block
¿ 0xBF 0xC2 0xBF U+00BF INVERTED QUESTION MARK Latin-1 Supplement
œ 0xBD 0xC5 0x93 U+0153 LATIN SMALL LIGATURE OE Latin Extended-A

Ik hoop dat een xs4all techneut hier voldoende aan heeft (:


Posted in Development, Encoding, ISO-8859, Software Development, Unicode, UTF-8, UTF8 | Leave a Comment »

Windows Alt Key Codes

Posted by jpluimers on 2015/02/16

Brillant!: Windows Alt Key Codes.

The page has both lists of four-digit ALT+#### codes, a how-to, and reference links:

  1. Letters with Accents – (e.g. ó, ò, ñ)
  2. Other Foreign Characters – (e.g. ç, ¿, ß)
  3. Currency Symbols – (e.g. ¢, £, ¥)
  4. Math Symbols – (e.g. ±, °, ÷)
  5. Other Punctuation – (e.g. &, ©, §)
  6. Using the Codes
  7. Other Accents and Symbols: Character Map Other Page
  8. Non-Numeric Accent Codes: Activate International Keyboard Other Page
  9. Links to Other References


Posted in Development, Encoding, Power User, Software Development, Unicode, Windows, Windows 7, Windows 8, Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Vista, Windows XP | Leave a Comment »

Great Unicode presentation by

Posted by jpluimers on 2015/01/21

Stefan Heymann did a great presentation Character Sets and Unicode in Firebird at fbcon11. About 90% of it is not about Firebird, but about Unicode: a highly recommended presentation.

There is also a PDF version of the same presentation for easier reading/searching.

If you like Firebird, there is a whole bunch of Firebird related presentations from various authors shared by MindTheBird.


Posted in Ansi, Database Development, Development, Encoding, Firebird, ISO-8859, ISO8859, Software Development, Unicode, UTF-8, UTF8 | Leave a Comment »


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