In the street with my laptop

Home News Sitemap Favourites   About me About this site Disclaimer Contact

What's new?


French German
24.10.20   Free Pascal   New Lazarus/Free Pascal command line program available: Simple text file sort program. The program not only allows to simply alphabetically sort the lines, but also to sort the lines, based on one or several keys, i.e. substrings, located at a given position within the line.

20.10.20   Free Pascal   Considering the number of visitors, reading my tutorials, it seems that lots of people would like to access MySQL databases from within a Lazarus application. After my texts about how to connect to a MySQL server and how to proceed to read (UTF-8) data from MySQL tables, I published a third tutorial in the The Lazarus/Free Pascal project section of my site: Writing data to a MySQL database from a Lazarus/Free Pascal application - the basics to know in order to insert, update or delete records in a MySQL database.

17.10.20   Web/DB   New functionality of my Animal database available: Reptile picture quiz.

14.10.20   Free Pascal   New version of my Blood volume calculator Lazarus/Free Pascal GUI application available, now with a 4th TBV determination method: the Lemmens-Bernstein-Brodsky equation.

11.10.20   Free Pascal   New chemistry Lazarus/Free Pascal GUI application available: A simple simulation of Fick's Law of diffusion.

09.10.20   Web/DB   New functionality of my Animal database available: Reptile fotoalbum III. I would say, that these pictures are really worth to have a look at!

06.10.20   Free Pascal   Continuation with my number games Lazarus/Free Pascal GUI applications. New application download: Logic puzzle: Lightbulbs.

02.10.20   Free Pascal   New version of my fully customisable Christmas tree available in the Lazarus/Free Pascal GUI applications section, with now possibility to choose a second (personal) message and balls with different shapes.

30.09.20   Free Pascal   Continuation with another of my Lazarus/Free Pascal GUI application series: Electronics circuits, based on logic gates. The 6th application ready: Combinational circuits simulation, including 4-to-2 encoder, 8-to-3 encoder, 4-to-2 priority encoder, 2-to-4 decoder, 4x1 multiplexer, 1x4 demultiplexer.

20.09.20   Free Pascal   New Lazarus/Free Pascal command line program, that may be used to determine the monthly count of the downloads from a website, available: . This (very simple) program uses a configuration file, where is defined what exactly has to be counted; data input are text files, that may, for example, be easily created manually from the output of website statistics applications such as awstats.

17.09.20   Homeless   New article available as PDF in the Articles section of my "homeless" site: Life is like a bottle of beer, this old story to view the bottle as already half empty or as still half full.

12.09.20   Web/DB   After the linear equations in 1, 2 and 3 variables, used my Equations4 Free Pascal program as template for a new maths trainer web application: Online logarithm equation exercises, accessible in the Web and database applications section.

10.09.20   Free Pascal   Continuation with my number games Lazarus/Free Pascal GUI applications. New application download: Logic puzzle: Yakuso. There is also a new version of the Logic puzzle: Kakkuru application available; the bug concerning the "Clear all" button having been fixed.

08.09.20   Web/DB   New functionality of my Animal database available: cephalopods mini-fotoalbum.

05.09.20   Homeless   New text in the Society and social system section of my "homeless" site: Stroosenenglen: Perhaps angels - but another disappointment for myself.

04.09.20   Free Pascal   New physics trainer (exercise generator) Lazarus/Free Pascal GUI application available: Hydromechanics - Perfect fluids dynamics (7 kinds of beginners level exercises).

24.08.20   Free Pascal   Something very different a new experience for myself, my latest Lazarus/Free Pascal GUI application: Network tools, a graphical user interface to run common MS Windows network command line programs. Tools available: ipconfig, ping, tracert, route, arp, netstat, NSlookup and Whois.

17.08.20   Free Pascal   If you like number puzzles, you should visit the "R├Ątsel und Puzzles" website of Otto Janko. You'll find there of all kinds, difficulty levels and grid sizes. With explanations and hints how to resolve them. And for all of them, the possibility to resolve them online in your web browser. A fourth number game for PC in the Lazarus/Free Pascal GUI applications section of my site: Logic puzzle: Kakkuru.

15.08.20   Free Pascal   New version of my USA states quiz available in the Lazarus/Free Pascal GUI applications section. A new quiz selection added: state seals.

14.08.20   Free Pascal   New chemistry Lazarus/Free Pascal GUI application ready for download: Mineral acid-base reactions, an exercise generator, that may really be helpful to prepare for a chemistry assignment.

12.08.20   Free Pascal   New physics Lazarus/Free Pascal GUI application ready for download: Heat and temperature, a simple program that can be used to do some elementary calculations concerning thermal expansion, heat transfer, phase changes...

08.08.20   Web/DB   New functionality of my Animal database available: Echinoderms and cnidarians fotoalbum.

03.08.20   Free Pascal   After Number Cross and Grades, a new number game available in the Lazarus/Free Pascal GUI applications section: Logic puzzle: Decadic Grid.

30.07.20   Free Pascal   Thanks to all those, who have downloaded some 300 programs from my site this month. Hope, you'll find them useful and/or enjoy! Best executable download was my Memory game with 12 times. A reason for me to write a new version, available in Lazarus/Free Pascal GUI applications. Beside the classic game mode to find picture pairs, now also possible to search for picture triplets. And, 4 new picture sets included: waterfalls, winter, birds, fishes.

27.07.20   Free Pascal   New mathematics trainer available in the Lazarus/Free Pascal GUI applications section: Numerical trigonometry: Triangles.

21.07.20   Web/DB   New functionality of my Animal database available: Ungulates continent quiz.

20.07.20   Free Pascal   Similar to the "Plural of French nouns", written in April this year, my new Lazarus/Free Pascal GUI application is a language trainer, resp. grammar exercise generator, this time dealing with the feminine of French nouns.

14.07.20   Free Pascal   Last year, I wrote a biology simulation dealing with the Lotka-Volterra 2-species growth model. Here, a new Lazarus/Free Pascal GUI application: 3-species predator-prey-system simulation, similar to the 2019 program and based on an extension of the Lotka-Volterra model.

10.07.20   Free Pascal   After Number Cross, published last month, here's another maths game, available in the Lazarus/Free Pascal GUI applications section: Logic puzzle: Grades.

08.07.20   Free Pascal   Continuing with my logic gates programs, a 5th Lazarus/Free Pascal GUI application available for free download: SR and D-type latches simulation.

05.07.20   Homeless   New text in the Human dignity section of my "homeless" site: Worried about the homeless people's situation during the lockdown.

30.06.20   Web/DB   All this dirt let by the intruder from the beginning of this month, was a welcome pretext for the mayor to chase the hated homeless with his laptop off his home. Nearly 4 years... What could have been my end, seems to be a new beginning with a very promising future: I got a new castle, somthing between housing and squat, calm and secure, with a key for the door and an electric plug for my computer! New functionality of my Animal database available: Turtle fotoalbum.

24.06.20   Free Pascal   New Lazarus/Free Pascal GUI application available (written in just 2 days...): Logic puzzle: Number Cross.

22.06.20   Free Pascal   New version of my Kids puzzle available in the Lazarus/Free Pascal GUI applications section. Several major modifications, in order to give more flexibility to add new puzzles. Also included 3 new puzzle pictures (a total of 10, actually).

20.06.20   Free Pascal   The intruder seems to be gone; probably returning into "my home is my castle" this evening. Lucky those, who live in a country, where there is someone, who protects normally behaving people against all these parasites, we have to live with in Luxembourg! Having terminated a mathematics (geometry) Lazarus/Free Pascal GUI application, that I began with in February: Conic sections.

18.06.20   Free Pascal   Perhaps, I had to loose the second important thing in my life, in order that my first and finally only important dream becomes a little bit more real (this year)? New Lazarus/Free Pascal GUI application available, an Ungulate quiz, with 90 animal pictures and slideshow feature included. Important for people, who have downloaded my Bird quiz or Carnivore quiz applications: New versions available, with bug fixes, avoiding in particular the program hanging, when a new quiz is started. Really sorry, for not having noticed this earlier...

14.06.20   General   Having lost my squat, where I lived for nearly 4 years, having no more place, where I have some square meters of privacy by my own, in tranquility and security, during the night, there is no realistic possibility to continue with the development of www.streetinfo.lu.

05.06.20   Web/DB   New functionality of my Animal database available: crustaceans foto quiz.

31.05.20   Free Pascal   New version of my 3-months multi-lingual calendar Lazarus/Free Pascal command line program, some spelling errors correction and addition of the Spanish language.

29.05.20   Free Pascal   New Lazarus/Free Pascal GUI application ready: World clock, a simple clock application, showing UTC time, local time and time in 8 world cities.

25.05.20   Free Pascal   Published a new text Creating command line programs with Lazarus in the The Lazarus/Free Pascal project section of my site: some hints concerning command line parameters and environment variables; description of how to use UTF8 with Windows Command Prompt.

22.05.20   Free Pascal   New Geography Lazarus/Free Pascal GUI application available. Similar to my "European countries quiz", a states of the USA quiz. To guess for a given state: the capital, inhabitant number, USA accession year or state flag.

19.05.20   Web/DB   New functionality of my Animal database available: crustaceans fotoalbum.

16.05.20   Free Pascal   New electronics Lazarus/Free Pascal GUI application available: Simple diode circuits (essential circuit values calcuation and exercise generator).

13.05.20   Web/DB   New functionality of my Animal database available: parrots fotoalbum.

11.05.20   Free Pascal   New Lazarus/Free Pascal GUI application available: 4-levels number puzzle, a maths game where the player has to find the numbers, that hide behind different shapes. Primarily for kids.

06.05.20   Computing   New tutorial published in the Computer basics: Home and Office section: Making image backgrounds transparent, using the open-source application GIMP.

04.05.20   Free Pascal   New Lazarus/Free Pascal GUI application available: a language trainer (exercise generator), dealing with the recognition of Chinese characters.

01.05.20   Free Pascal   New version of my 3-months multi-lingual calendar Lazarus/Free Pascal command line program, now with UTF-8 support for correct display of Luxembourgish, German and French month and day names.

27.04.20   Free Pascal   Living with the Covid-19 obligation to stay at home, is not always easy and sometimes, the time seems just to stand still. If you have young kids, who look for some hours of ouccupation and fun, maybe my new Lazarus/Free Pascal GUI application may be helpful: Kids puzzle, a PC version of the classic puzzle games, 7 different puzzles (between 12 and 50 pieces) included.

26.04.20   Web/DB   New functionality of my Animal database available: Carnivores continent quiz.

24.04.20   Free Pascal   New physics trainer (exercise generator) Lazarus/Free Pascal GUI application ready for download: Dynamics: Pulleys exercises, with user selection of 15 kinds of pulley systems.

18.04.20   Free Pascal   New educational Lazarus/Free Pascal GUI application available: World rivers quiz. Questions include: River length, drainage area, average discharge, outflow, continent and drainage countries.

10.04.20   Web/DB   Entirely rewritten my article, concerning the creation of websites for mobile devices; to be considered as an introductary help text intended for website developer newbies and published in the Web and database programming tips section of my site.

06.04.20   Homeless   Published an article, concerning the (young) social workers, in the Experiences and reflections section: Young graduates without any professional ethics?

05.04.20   Free Pascal   New Lazarus/Free Pascal GUI application available: Plural of French nouns. Also available a new (bug fixed) version of my Suffixes of French adjectives application.

29.03.20   Free Pascal   New Lazarus/Free Pascal GUI application ready for download: Yahtzee game for 1 - 3 players.

28.03.20   Web/DB   New functionality of my Animal database available: Pigeon and cuckoo fotoalbum.

26.03.20   Free Pascal   New version (with improved selection of the flags) of my European countries quiz available in the Lazarus/Free Pascal GUI applications section.

19.03.20   Free Pascal   New maths trainer Lazarus/Free Pascal GUI application available for download: Binary numbers (conversion, arithmetic and logical operations).

12.03.20   Free Pascal   Terminated another Lazarus/Free Pascal GUI application, that I started last month: A maths exercise generator for primary school pupils: American and British measurements units converter.

11.03.20   Web/DB   My cold seems to go as it came. And, maybe, found a place, protected against the rain and (if I take my sleeping bag) also against the cold, and, what's most imortant, where I may work in tranquility. New functionality of my Animal database available: the first fish fotoalbum.

08.03.20   Free Pascal   This weekend, without any pupils chasing me out of my squat, was all the contrary of the hell of the last 2 weeks. And I finally found back the tranquility and the pleasure to do something creative and hopefully useful. New electronics related Lazarus/Free Pascal GUI application available: Simulation of binary subtractors. I also published a new version of my Simulation of binary adders program, with some corrections done within the circuit layouts and fixing the bug, that did the application crash, when running it under Lazarus debugger.

19.02.20   Web/DB   What an illusion to have thought that with the school holidays I would have a week of tranquility, giving me the possibility to recover and to work on my programs! My squat, a real home for 2 years, becomes more and more a place to smoke joints, to listen their boum-boum-music or simply to make noise and dirt, for the adolescents of the village, too. Happy the (older) people, who live in countries, where there is someone, who protects them from those luxury-kids without any respect and escapements! No way to advance with my Free Pascal applications, fortunately, there is my Animal database: publication of a new birds fotoalbum.

11.02.20   Free Pascal   In this ugly situation, where I pass most time of the day laying somewhere outside in the cold and the rain, waiting that the pupils of the school near-by leave my squat, or, at Streetwork's in the city, that those priviledged drunk people stop their shouting and music, in order to have some quiet moment to be able to work a little bit on my laptop, it's all but not easy to keep the faith and continue to be productive, more and more starting with an application, but never terminating it. Developping something simple and ready in 2 days may help in such a case. That's how my new Lazarus/Free Pascal GUI application is born: A fully customisable Christmas tree. Just for fun (and why not download it and share it in December...)

08.02.20   Web/DB   The first articles in the Web and database programming tips section of my site: Two introductary help text (intended for website developer newbies), about the creation of websites for mobile devices. The first one is a (small and simple) description of what's the minimum of code, you should include within your HTML, to make a page look friendly on smartphones. The second one deals with the generation of device-dependent webpages with Perl; it also describes how to use Chrome DevTools to test mobile viewports.

03.02.20   Free Pascal   The 17 times, that my Snake2 game has been downloaded during the previous month, has inspired me to write a new version, now 3 difficulty levels, with a good memory needed to play the game at the 3rd one. Download available in the Lazarus/Free Pascal GUI applications section.

26.01.20   Free Pascal   New Lazarus/Free Pascal GUI application ready: a geometry trainer (exercise generator) dealing with the graphical addition of vectors.

23.01.20   Free Pascal   Another language related Lazarus/Free Pascal GUI application available: The Greek alphabet.

21.01.20   Web/DB   Extensions of the functionalities of my Animal database: New birds fotoalbum and 2 new online quizes.

13.01.20   Free Pascal   New Lazarus/Free Pascal GUI application available (a further one in my national language): Luxembourgish locals quiz.

11.01.20   Homeless   In the Human dignity section of my "homeless" site, you can find a new text, in my eyes more than important for everyone of us: Plea for a free life in dignity for everybody.

07.01.20   Free Pascal   New Lazarus/Free Pascal GUI application ready for download. A language trainer (exercise generator), dealing with the French adjective suffixes.

05.01.20   Free Pascal   New version of my Learn the alphabet Lazarus/Free Pascal GUI application available. The German letters files now without "clicking noise" and lots smaller. Also some GUI problems fixed.

04.01.20   Web/DB   New functionality added to my Animal database: Frog amphibians fotoalbum.


26.08.18   General   Finally it has become a reality: streetinfo.lu: my own .lu domain! Big thanks to the one, who made this possible!

07.06.18   General   Due to the kindness of a gentle and friendly man, I had the chance to get an account on the HelioHost "Tommy" server. I made the decision to restart my "In the street with a laptop" website with a new URL: www.streetinfo.heliohost.org.

May 2018   General   Crash of the "Johnny" server and the need to entirely rebuild it. My website down for over a month. In a mood fluctuating between resignation and new hope, I continued to develop Lazarus/Free Pascal programs and writing homeless related articles.

Dec 2017   General   Creation of an account on the HelioHost test server "Johnny" and started the "In the street with my laptop" website with URL www.allu62.heliohost.org, containing informatics related stuff (in particular my Lazarus/Free Pascal applications) as well as information concerning the homeless people in Luxembourg.