The Wiert Corner – irregular stream of stuff

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

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Archive for the ‘Development’ Category

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Niklaus Wirth’s “Good Ideas, Through the Looking Glass” (via: MetaFilter)

Posted by jpluimers on 2014/01/02

I forgot who pointed me at this, but recently I came across a reference to the Good Ideas, Through the Looking Glass paper by Niklaus Wirth (by many known as the “father” of Pascal, though he has done a lot more – for instance the WSN – , still is involved with the ETH in Zürich, and turns 80 on February 15h).

Back when it appeared in the 2005/2006 timeframe I missed it, and I’m glad to have bumped into just for the historic perspective he offers. I can understand some will disagree with parts of his conclusions and observations, that’s why I like that MetaFilter has a nice page with discussion about it and a link to the PDF version of the paper.

I also like that Niklaus kept active in the field of computer science for so long, similar to Donald Knuth. There is a lot to having a great historic perspective to things.

–jeroen

via: Good Ideas, Through the Looking Glass | MetaFilter.

Posted in Delphi, Development, History, Pascal, Software Development | 3 Comments »

rdesktop: A Remote Desktop Protocol client (open source, runs on X, hosted on sf.net)

Posted by jpluimers on 2014/01/02

Very interesting, especially since rdesktop.org works with Windows Server 2008 R2 and Windows 7 as well, and is stable on x64.

It provides three tools: rdesktop, rdpproxy and seamlessrdp.

Researching this, I also found about TSWindowClipper which allows you to seamlessly integrates remote apps on your client by integrating a DLL inside the MSTSC software using the official virtual channels.

Back to rdesktop: I really wish the documentation was better, but it contains some very interesting source code.

rdesktop is an open source client for Windows Remote Desktop Services, capable of natively speaking Remote Desktop Protocol (RDP) in order to present the user’s Windows desktop. rdesktop is known to work with Windows versions such as NT 4 Terminal Server, 2000, XP, 2003, 2003 R2, Vista, 2008, 7, and 2008 R2.

rdesktop currently runs on most UNIX based platforms with the X Window System, and other ports should be fairly straightforward.

rdesktop is released under the GNU Public Licence (GPL), version 3. Please send feedback, bug reports and patches to the appropriate mailing list. Patches can also be submitted to the SF patch tracker.

rdesktop is a project. See the Sourceforge rdesktop project info and the Wiki for more information.

Status

The latest stable version of rdesktop is 1.7.1 (edit: this was at the time of writing, for the current latest, check here). This versions solves major issues with 64bit version and smartcard support among a few minor fixes.

–jeroen

via rdesktop: A Remote Desktop Protocol client.

Posted in *nix, Development, Linux, Power User, Remote Desktop Protocol/MSTSC/Terminal Services, Software Development, SuSE Linux, Windows, Windows 7, Windows Server 2000, Windows Server 2003, Windows Server 2003 R2, Windows Server 2008, Windows Server 2008 R2, Windows Vista, Windows XP | Leave a Comment »

.NET/C# – opposite of Path.Combine: remove trailing DirectorySeparatorChar

Posted by jpluimers on 2014/01/01

For a project, I needed to strip the potential Path.DirectorySeparatorChar and Path.AltDirectorySeparatorChar.

Where Path.Combine will combine two paths and insert the DirectorySeparatorChar, I could not find the opposite, so I wrote this little piece of code:

using System.IO;

namespace BeSharp.IO
{
    public class PathHelper
    {
        public static string RemoveTrailingDirectorySeparators(string directory)
        {
            string result = directory.TrimEnd(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
            return result;
        }
    }
}

–jeroen

via:

Posted in .NET, .NET 1.x, .NET 2.0, .NET 3.0, .NET 3.5, .NET 4.0, .NET 4.5, C#, C# 1.0, C# 2.0, C# 3.0, C# 4.0, C# 5.0, Development, Software Development | Leave a Comment »

openOV; vrij van a naar b

Posted by jpluimers on 2013/12/31

Interessant voor software developers: publieke APIs voor OV informatie

Het team van openOV werkt aan het publiek beschikbaar stellen van openbaar vervoer informatie, vrij toegankelijk voor iedereen.

Ik vraag me af of ze iets met Actuele spoorkaart Nederland te maken hebben:

Kaart en geodata: © OpenStreetMap
Actuele treintijden: NS-Reisinformatie
Visualisatie: M. van der Loos

–jeroen

via:

Posted in Development, Mobile Development, Power User, SOAP/WebServices, Software Development, Uncategorized | Leave a Comment »

Some links on Delphi, JNI, Android

Posted by jpluimers on 2013/12/30

So I won’t forget to read these:

Some of my own work on this back in the Delphi 7 days:

–jeroen

Posted in Delphi, Delphi 7, Delphi XE5, Development, Java, Software Development | 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 »

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

git index.lock File exists when I try to commit (via: Stack Overflow)

Posted by jpluimers on 2013/12/29

I had this occur a few times over the last couple of weeks.

The solution is to delete the index.lock file, but I’m not sure if more steps are needed to verify repository content.

Anyone?

–jeroen

via: git index.lock File exists when I try to commit, but cannot delete the file – Stack Overflow.

Posted in Development, DVCS - Distributed Version Control, git, Software Development, Source Code Management | Leave a Comment »

Extreme Programming, a Reflection (via: 8th Light)

Posted by jpluimers on 2013/12/29

Thanks Uncle Bob Martin for posting this.

I’ve been trying (with increasing success: it takes time to get this all right) to practice XP (through various name changes) as much and wide as possible since almost 14 years, and only the last few years it is starting to be common practice for many more people.

take a moment to reflect back on 1999. A time when Kent Beck wrote a ground-breaking book. A book that changed everything. Look back and remember: Extreme Programming; and recognize it as the core of what we, today, simply think of as:

Good Software Practice.

–jeroen

via: Extreme Programming, a Reflection | 8th Light.

Posted in .NET, Agile, Continuous Integration, Delphi, Design Patterns, Development, Software Development, Source Code Management, Technical Debt, Testing, Unit Testing | Leave a Comment »

Delphi and LLVM: what is your take on this?

Posted by jpluimers on 2013/12/27

One more for the weekend (:

I wrote about Some links on the Delphi compiler and the LLVM Compiler Infrastructure Project about a year and a half ago which caused a short discussion on the embarcadero forums. A few month later Robert Love showed his views in a response to Tim Anderson writing about Clang and LLVM in the C++ side of the toolchain. Tim Anderson wrote more about LLVM in the Delphi tool chain  in September 2012, then it went quiet for a while.

Since then the LLVM tool chain has integrated itself into both the C++ and Delphi toolchains and Wired wrote about LLVM.

Gunsmoker – who works at EurekaLog – wrote up some interesting comments in Russian (I hope the English Google translation is good enough).

In my view, the LLVM tool chain opens a lot more possibilities (shared back-end for Delphi and C++, coverage of more platforms, better optimization), but is also a lot slower and makes the debugging part a lot harder as the debugger is – symbol wise – much further away from the compiler than in the traditional setting (hence the 3 levels of debugging information that got introduced in Delphi XE5 and the compatibility problem that came with it).

I’m wondering what other users in the Delphi community think about the LVVM chain: is it working good enough for you? Should it be integrated further into the Windows/OSX parts of the chain?

–jeroen

Posted in Delphi, Delphi XE3, Delphi XE4, Delphi XE5, Development, Software Development | 26 Comments »

Read-Eval-Print-Loop with a twist: repl.it

Posted by jpluimers on 2013/12/26

Just found out about the repl.it site that allows you to do a Read-Eval-Print-Loop with 15 different languages running from within your browser.

Really: from within your browser. Your browser becomes a console “IDE” by first translating the language to JavaScript then executing it on the browser.

They have all their code in a Git repository, with at the root implementations of those languages.

There are only a few pages on the site to complement the “IDE”:

According to their @replit twitter feed they have been around since about September 2011, but there are still regular updates.

–jeroen

Posted in Development, JavaScript/ECMAScript, Scripting, Software Development | Leave a Comment »

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