Archive for the ‘Object Pascal’ Category
Posted by jpluimers on 2025/07/15
On my list of libraries to play around with: [Wayback/Archive] TRURL – Free Pascal wiki
TRURL is a class library for Object Pascal supporting the creation of virtual calculators with reverse Polish notation (RPN). It comes with demo projects and several ready-to-use calculators for macOS, Linux and Windows.
TRURL is an acronym for “TRURL is a Reusable Universal RPN Library”.
Repositories:
Via [Wayback/Archive] TrurlTeam (@teamtrurl.bsky.social) — Bluesky.
--jeroen
Posted in Delphi, Development, FreePascal, Object Pascal, Pascal, Software Development | Leave a Comment »
Posted by jpluimers on 2015/01/22
Wow: I feel like having lived under a stone for 8 years, as RosettaCode has been alive since it was founded in 2007 by Mike Mol.
The idea is that you solve a task and learn from that, or learn by seeing how others have solved tasks or draft tasks.
So in a sense it is similar to the Rosetta stone: it has different languages phrasing the same tasks.
There are already a whole bunch of languages on RosettaCode (of which a few are in the categories below), and you can even suggest or add your own languages.
When you want to solve tasks, be sure to look at the list unimplemented tasks by language that leads to automatic reports by language (for instance two of the languages I use most often: C# and Delphi).
I’m sure there are lots of programming chrestomathy sites, even beyond the ones, and it feels very similar to programming kata sites.
–jeroen
Posted in .NET, APL, Awk, bash, Batch-Files, C, C#, C++, COBOL, CommandLine, Delphi, Development, Fortran, FreePascal, Java, JavaScript/ECMAScript, Lazarus, Object Pascal, Office VBA, Pascal, Perl, PHP, PowerShell, PowerShell, Prism, Scripting, sed script, Sh Shell, Software Development, Turbo Prolog, VB.NET, VBS, VBScript, Visual Studio and tools, Web Development | Leave a Comment »
Posted by jpluimers on 2014/04/16
Thanks Olivier SCHWAB for pointing me to this nice interview with Florian Klämpfl on SourceForge about April 2014 Project of the Month, Free Pascal | SourceForge Community Blog.
Two things I didn’t know yet:
- FreePascal started in the Turbo Pascal era (the first version was before Delphi 1.0 got released) as a 32-bit compiler project.
- FreePascal 3.0 will support jvm output (like Oxygene does).
Besides Florian, there are quite a few more people on the FreePascal team. I met most of them at last years PasCon: really nice guys.
–jeroen
Posted in Delphi, Development, FreePascal, Object Pascal, Oxygene, Pascal, Software Development, Turbo Pascal | Tagged: Free Pascal, FreePascal, sourceforge, Turbo Pascal era | 5 Comments »
Posted by jpluimers on 2014/03/06

The @appmethod secret.
Wow. Out of the blue, I just read Embarcadero Launches AppMethod, A New Multi-Device Development Platform For Native Apps | TechCrunch. And I’m impressed.
In short:
At SXSW 2014 (which is running now, its agenda has a schedule from March 7th till March 16th), Embarcadero announces appmethod, to be released in beta on March 18th, 2014 for building native cross platform applications. Many have found out you can apply for the beta at www.appmethod.com.
More and more people are bumping into the appmethod link, for instance on FaceBook, on Google Plus, at Delphi Bistro and #Appmethod starting with the @appmethod secret by Joy Ruff.
Below are a few my observations from following all of the above links. Read them, especially the TechCrunch. I expect interesting posts from others to follow really soon now (:.
I’m only a few hours ahead of you readers, but I’m having a positive vibe just for these reasons: Read the rest of this entry »
Posted in Android, C++, Delphi, Delphi XE5, Development, iOS Development, JSON, Mobile Development, Object Pascal, OS X FMX, Pascal, SOAP/WebServices, Software Development | Tagged: embarcadero, Multi-Device, TechCrunch | 15 Comments »
Posted by jpluimers on 2014/02/25
This post lists a lot of links related to the history of Pascal / Object Pascal / Delphi Language / FreePascal / etc.
No mentioning of Pascal should start without Niklaus Wirth. At the time of writing he is still alive, hopefully he still is a the time of publication.
Link clearance.
Categories on my blog:
–jeroen
Posted in Apple Pascal, BitSavers.org, Borland Pascal, DEC Pascal, Delphi, Development, FreePascal, History, Object Pascal, Pascal, Software Development, Think Pascal, Turbo Pascal, UCSD Pascal | 7 Comments »
Posted by jpluimers on 2014/01/24
Being away from a computer sometimes means you forget about events.
So before I forget: happy 30th birthday Mac!
For me, real programming started 31 years ago on an Apple II at high school, soon followed by a II+ and a //e. At first, I was programming in both Integer Basic and AppleSoft Basic, then with Apple Pascal (which was based on UCSD Pascal, but way too slow), and finally with Turbo Pascal 1.0 (after they installed a Microsoft Z-80 softcard in a few of the machines which allowed it to run CP/M).
Back then me, nor my parents could afford a computer like a Mac, but I was lucky enough to keep on people at the “close by” (30 minutes by bicycle) University to use one and program in hyper card and various Pascal dialects (and later Delphi).
Now I own a few Macs (most more portable than the //c) bought a //e and //c last summer and collecting some extension cards to make life easier.
Just look at the B&N magazine rack how popular the Apple stuff is today:

So again: happy 30th birthday Mac!
Without you, I wouldn’t be a software developer.
–jeroen
via: Apple bracht eerste Mac-computer 30 jaar geleden uit – Computer – Nieuws – Tweakers.
Posted in //e, Apple, Apple Pascal, Delphi, Development, Mac, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, Object Pascal, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Pascal, Power User, Software Development, Think Pascal, Turbo Pascal, UCSD Pascal | 1 Comment »
Posted by jpluimers on 2013/08/12
While researching some other historic information about Delphi, I bumped into this thread: New DPMI host – delphi.
If is a small thread describing what kinds and versions of DPMI hosts were available to run Turbo Pascal based programs.
DPMI stands DOS Protected Mode Interface: a way for real mode DOS programs to access protected mode features (mainly memory above the 1 megabyte barrier).
I had plainly forgotten that the DPMI host shipped with Delphi 1, and wasn’t aware you could have a 32-bit DPMI host at all.
Some other memory related abbreviations from that era: Read the rest of this entry »
Posted in Borland Pascal, Delphi, Delphi 1, Development, Object Pascal, Pascal, Software Development, Turbo Pascal | 2 Comments »
Posted by jpluimers on 2013/02/15
Thanks Lennart Aasenden for sharing this on FaceBook: Mariuz’s Blog: Adobe Photoshop 1.0 Source Code About 75% is in Pascal.
This was back when I was already a professional Turbo Pascal for PC programmer, not yet a Mac programmer, but doing Pascal on VMS to assist a client in the scaleable font industry.
The 1990 version 1.0.1 of Photoshop code was written in Object Pascal, and based on MacApp.
Back then Apple’s Object Pascal was one of the few IDEs available to develop Macintosh software. Later on, you also had Turbo Pascal and THINK Pascal (which many Macintosh developers preferred, was later acquired by Symantec, and died). A big reason they liked it so much was the THINK integrated debugger, which was lightyears ahead of any Pascal product on any other platform.
Apple had great documentation, not only on their compilers and libraries, but also one that everyone should hav read: Apple Human Interface Guidelines: The Apple Desktop Interface: Inc. Apple Computer: 9780201177534: Amazon.com: Books.
The Adobe Photoshop 1.0 source code can be downloaded (for non-commercial use) from the Computer History Museum | @CHM : Adobe Photoshop Source Code page.
The source is a very interesting read, and a great comments on it by Grady Booch.
This is how everyone should think about their code.
–jeroen
PS: A nice introduction to Object Pascal for a Macintosh is at MacTech | The journal of Apple technology..
Posted in Delphi, Development, Object Pascal, Pascal, Software Development, Think Pascal | Tagged: apple technology, computer, computer history museum, desktop interface, human interface guidelines, mac programmer, macintosh developers, object pascal, software, technology | 4 Comments »