Hoe moeilijk kan het toch zijn om je encoding goed te doen.
Deze keer uit een brief van xs4all:
Mojibake encoding probleem
Als je een trema in een brief zet, dan controleer je toch even dat die ook goed op de brief wordt afgedrukt?
Archive for the ‘UTF-8’ Category
[NL] encoding blijft moeilijk, waarom toch? (dit keer in een brief van @xs4all)
Posted by jpluimers on 2015/02/24
Posted in Development, Encoding, ISO-8859, Mojibake, Software Development, Unicode, UTF-8, UTF8 | 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.
–jeroen
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Posted in Ansi, Database Development, Development, Encoding, Firebird, ISO-8859, ISO8859, Software Development, Unicode, UTF-8, UTF8 | Leave a Comment »
Delphi hinting directives: deprecated, experimental, library and platform
Posted by jpluimers on 2014/10/01
I’ve been experimenting with the Delphi hinting directives lately to make it easier to migrate some libraries to newer versions of Delphi and newer platforms.
Hinting directives (deprecated, experimental, library and platform) were – like the $MESSAGE directive – added to Delphi 6.
Up to Delphi 5 you didn’t have any means to declare code obsolete. You had to find clever ways around it.
Warnings for hinting directives
When referring to identifiers marked with a hinting directive, you can get various warning messages that depend on the kind of identifier: unit, or other symbol. Read the rest of this entry »
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Posted in Apple Pascal, Borland Pascal, DEC Pascal, Delphi, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 6, Delphi 7, Delphi 8, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Development, Encoding, FreePascal, ISO-8859, ISO8859, Java, Lazarus, MQ Message Queueing/Queuing, QC, Reflection, Software Development, Sybase, Unicode, UTF-8, UTF8 | 2 Comments »
Recommended reads when dealing with Character Encodings in software
Posted by jpluimers on 2014/05/06
Apart from the mandatory Joel on Software article about Unicode and Character sets, these two articles are of great value too:
Fun to read from that blog is the Historical Technology section including this article:
–jeroen
PS: The mandatory one is The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!) – Joel on Software.
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Posted in .NET, Ansi, ASCII, CP437/OEM 437/PC-8, Delphi, Development, EBCDIC, Encoding, ISO-8859, ISO8859, Shift JIS, Software Development, Unicode, UTF-8, UTF8, Windows-1252 | Leave a Comment »
Some Unicode links
Posted by jpluimers on 2013/12/30
I see a lot of programmers struggle with Unicode and think it is difficult as getting the encoding decoding hassle right can take quite a bit of effort. There is a lot of fun in using Unicode as well, as the number of code points (in laymen speak: characters) is huge and the Unicode code points are well organized into various planes (or blocks) with related code points. I like Charbase: A visual unicode database a lot especially as they have pictograms of all code points that always show a picture, even if you don’t have a font that your browser can use to display the character belonging to the code point. Here are a few links from to characters and blocks of characters in their database that I like a lot: Read the rest of this entry »
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Posted in Development, Encoding, Software Development, Unicode, UTF-8, UTF8 | Leave a Comment »
▶ Characters, Symbols and the Unicode Miracle – Computerphile – YouTube
Posted by jpluimers on 2013/12/23
Brilliant:
UTF-8 explained in less than 9 minutes.
The diagram fits almost on the back of a napkin, so he explained it with a big marker on classic 132-column fan fold green-bar continuous form paper (we used to call it zebra-paper).
I’m definitely going to follow the Compuerphile videos and watch more of them.
Definitely a great addition to my UTF-8 posting category.
Thanks for everyone that pointed me to this video!
–jeroen
via: ▶ Characters, Symbols and the Unicode Miracle – Computerphile – YouTube.
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Posted in Development, Encoding, Software Development, Unicode, UTF-8, UTF8 | Leave a Comment »
Delphi XE3/XE4: removing empty .VLB files; XE5 update 2 and special offers are out. #codingindelphi
Posted by jpluimers on 2013/12/19
Even when not using Visual Live Binding, Delphi generates empty .VLB files in both Delphi XE3 (virtually always) and Delphi XE4 (most of the time).
Visual Live Binding is one way of binding data to UI in FireMonkey and can also be used in VCL, but does not have to (Alister Christie made a nice video ▶ Delphi Training Tutorial #77 – Visual Live Bindings – YouTube about it).
Empty VLB files, and a batch file to delete them
The “empty” VLB files are almost empty, as they are exactly 3 bytes long and contain the byte sequence EF BB BF which is the Unicode BOM (byte order mark) for the UTF-8 encoding. Read the rest of this entry »
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Posted in Delphi, Delphi XE3, Delphi XE4, Delphi XE5, Development, Encoding, QC, Software Development, Unicode, UTF-8, UTF8 | Tagged: Delphi, VLB | Leave a Comment »
Delphi Mobile (NEXTGEN) compiler: the risk of a changed TSymbolName; unsupported data types means unsupported RTTI as well
Posted by jpluimers on 2013/09/05
The NEXTGEN family of Delphi compilers for the Mobile platforms changed quite a bit of things.
Most of it has been covered by various blogs posts. A non exhaustive list of ones I liked:
- Delphi Language for Mobile Development Paper by Marco Cantu with this 40 page PDF white paper.
- Lars Fosdal – Google+ – Differences between Delphi Desktop Compilers and Delphi Mobile Compilers….
- It’s a blong, blong, blong road…: New compiler directives in Delphi XE3 (he doesn’t mention NEXTGEN, but covers zero based strings in addition to compiler directives).
- Zero-based strings (Delphi) – RAD Studio explaining the ZEROBASEDSTRINGS directive.
- Everything TStringHelper is zero-based:
Exploring Delphi XE3 – Record Helpers for simple types – System.SysUtils.TStringHelper | The Road to Delphi – a Blog about programming.
Mark Edington’s Delphi Blog : XE3 RTL Changes: A closer look at TStringHelper. - DWS and zero baded strings: Zero-based Strings indexes? – DelphiTools.info.
- TMS Software | Blog | TMS Aurelius in your iPhone.
- Delphi XE 4 – Is ARC for Everyone? | Olaf’s Thoughts About Development.
- and of course: Migrating Delphi Code to iOS from Desktop – RAD Studio.
Those articles do not contain two things I had’t found about yet though that are important when you do RTTI using NEXTGEN in Delphi XE4: Read the rest of this entry »
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Posted in Delphi, Delphi XE3, Delphi XE4, Development, Encoding, Software Development, Unicode, UTF-8 | 2 Comments »
Delphi “Variant Records”, a few notes
Posted by jpluimers on 2013/03/14
Variant Records are a feature that has been in the Pascal language since Standard Pascal.
A cool page for historic perspective is R3R: Pascal Features in Popular Compilers, hopefully someone will update it to more modern versions of the mentioned compilers.
There is not much official documentation on the Delphi side on this, so below some parts of a case I used for a project that started in 1997 and is still in use to day. Read the rest of this entry »
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Posted in APPC, AS/400 / iSeries / System i, ASCII, COBOL, Communications Development, Conference Topics, Conferences, CPI-C, Delphi, Delphi 1, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 3, Delphi 4, Delphi 5, Delphi 6, Delphi 7, Delphi 8, Delphi XE, Delphi XE2, Delphi XE3, Development, Encoding, Event, HIS Host Integration Services, Internet protocol suite, MQ Message Queueing/Queuing, SNA, Software Development, TCP, Unicode, UTF-8, WebSphere MQ | 9 Comments »
Delphi “type types”: similar types but not the same type identity, some examples.
Posted by jpluimers on 2013/03/12
Few people know about a Delphi language feature that has been present since Delphi 1: prepending the type definition with a type keyword to make the type getting a new identity.
Each time I use it, I have to do some browsing for the consequences, and this time I wrote down some notes and created a small example program (source is also below).
This time I needed it when writing class wrappers on top of the Delphi bindings for WebSphere MQ.
WebSphere MQ has Queues where you can put and get messages. It also has Queue Managers to which you connect, and that provide queuing services and manages queues.
Both Queues and Queue Managers have names that can be up to 48 (single byte) characters long.
Those names mean totally different things, so though the have similar data types, they have a different identity.
The same holds for 20 byte character arrays (they can be used as names for ChannelName, ShortConnectionName and MCAName). The 264 byte character array is so far used for ConnectionName only.
Distinguishing those types: That’s what “type types” in Delphi are all about. Read the rest of this entry »
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Posted in CP437/OEM 437/PC-8, Delphi, Delphi 1, Delphi 2005, Delphi 2006, Delphi 2007, Delphi 2009, Delphi 2010, Delphi 3, Delphi 4, Delphi 5, Delphi 6, Delphi 7, Delphi 8, Delphi x64, Delphi XE, Delphi XE2, Delphi XE3, Development, Encoding, Shift JIS, Software Development, Unicode, UTF-8, UTF8 | 1 Comment »
The Wiert Corner - irregular stream of stuff 