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Referring to the Swiss Perl Workshop, it is now time to collect all the conference talks that I have given so far and that have been uploaded as video. Lightning Talk: Why Computer calculate wrong (done with Scala; ScalaX 2015) Why computer calculate wrong (done with Perl and Perl 6; Alpine Perl Workshop 2016) Lightning …
„Conference Talks“ weiterlesen
I have attended the Swiss Perl Workshop. We were a group of about 40 people, one track and some very interesting talks, including by Damian Conway. I gave a regular talk and a lightning talk myself. The content of my talk might go into another Blog post in the future. The Perl programming language is …
„Swiss Perl Workshop 2017“ weiterlesen
Shell scripts can be useful for writing small stuff like combining a few commands to pipes or doing a bit of „back ticking“. Even simple loops and if-conditions are possible. And if we want, it is almost a full programming language. A bit hard to tame, maybe, but quite a lot of stuff is possible. …
Some of us still remember the times when it was recommended to avoid „special characters“ when writing on the computer. Some keyboards did not contain „Umlaut“-characters in Germany and we fell back to the ugly, but generally understandable way of replacing the German special characters like this: ä->ae, ö->oe, ü->ue, ß->sz or ß->ss. This was …
„Using non-ASCII-characters“ weiterlesen
З Рiздвом Христовим − کريسمس مبارک − Nollaig Shona Dhuit − Kellemes Karácsonyi Ünnepeket − Feliz Natal − Gëzuar Krishtlindjet − Joyeux Noël − καλά Χριστούγεννα − Vesele Vianoce − Fröhliche Weihnachten − Vesele bozicne praznike − Bon nadal − God Jul − Glædelig Jul − Честита Коледа − Feliz Navidad − Sretan božić − …
The standard libraries of newer programming languages usually contain so called collection libraries. Collections can usually be Lists, Sets, Maps or specialization of these. They cover quite a lot and we start seeing variants that are built on immutability and variants that allow mutability and as always the hybrid in Ruby, that combines these and …
„Collection Libraries“ weiterlesen
On 2016-09-02 and 2016-09-03 I was able to visit the Alpine Perl Workshop. This was a Perl conference with around 50 participants, among them core members of the Perl community. We had mostly one track, so the documented information about the talks that were given is actually quite closely correlated to the list of talks …
„Alpine Perl Workshop“ weiterlesen
In Applications that are used by non-technical end users, which are these days very often web applications, we have to deal with the issue that an unexpected error occurs. There are the two extremes: We can just show a screen telling in a nice design that the application does not work and that is all. …
„Error Messages in Web Applications“ weiterlesen
The language Perl 6 has been announced to be production ready by the beginning of this year. Its implementation is Rakudo, while the Perl 6 programming language itself is an abstract language definition that allows any language implementation that passes the test suite to call itself an Perl 6 implementation. The idea is not totally …
„Integers in Perl 6“ weiterlesen
We all know that Java uses a „virtual machine“ that is it simulates a non-existing hardware which is the same independent of the real hardware, thus helping to achieve the well known platform independence of Java. Btw. this is not about virtualization like VMWare, VirtualBox, Qemu, Xen, Docker and similar tools, but about byte code …
„Virtual machines“ weiterlesen