Linux sob medida
tclslides talk 2
Forum linux I
Real Time Linux
Americano Batista Linux
favorite places (links)
|November 19, 2002 -- A simple pop3 fetcher
features my incredibly simple pop3 fecther, I use to fill my needs. It is a
simple script that could easily fit the text of the news to announce it. Go
check it now!
|October 16, 2002 -- A skinable volume control
See in today's
a new addition to our skinable tk widgets collection, a volume control.
As before, it shares the same bitmaps as Xmms and Winamp®, but beware not
to infringe any copyright laws!
This tutorial only shows the basics of such widget creation. If you want a
ready to use volume control, you will have to elaborate a little more.
|October 16, 2002 -- Introducing VebKlaso
If you intend to give talks, courses or presentations online but can't
afford a T1 or higher speed uplink, here is the solution. With
VebKlaso you show your slides, texts,
multimedia, and so on. All fully interactive, with your speech transmitted
along, while you get in control of your listeners web navigators.
Don't miss it! See the VebKlaso webpage
for the full story (in portuguese, but with many pictures) about this
|August 29, 2002 -- More copylefted pictures
If you liked the first photos I made available here, you
will certainly like this. Please look for the pictures
at my new collection photo index.
|August 26, 2002 -- Copylefted pictures
There are many stock photography sites around, but most ask money if you
intend to use their work for commercial purposes. I started to put
real free, copylefted, photos for you. The collection is still small,
but will grow fast. I hope you enjoy my
photo album collection.
|July 26, 2002 -- Skins in tk widgets
This week tcl-guide features example code on how to beautify your tcl/tk
GUIs, borrowing skins from Xmms or Winamp. Yes, you don't need the complexity
of Gtk+ or Qt for doing nice interfaces in tcl, nor buggy Java applets. And
everything is done in simple scripts, with no C code.
|July 21, 2002 -- Linux sob
Medida course material, new edition
I presented today a short course
"Linux sob Medida", in portuguese.
You may want to get this tcl/tk script
suitable to viewing those slides or any other slide collection exported as
html from OpenOffice.org. For your convenience,
here is a package
that you will need too (required by sldshow).
For the gearhead people,
here is the CDROM image (==REMOVED, e-mail me if you need a copy==)
of a self-contained linux system (run without any hard disk),
used during the course.
Create your home grown distro from it!
|Jul 15, 2002 -- New tclslides talk
Here you find another talk
on tclslides I'm going to present today to some customers.
If you want to hear/see it live, please contact me and we may schedule for a
|Jun 30, 2002 -- PENTA BRASIL !!!
World Champion 2002
|Jun 19, 2002 -- Other printer served by ml85p
Still another printer that works great with my driver ml85p, the Texas
Instruments Win/4. Thanks Marcel for reporting this to me! He also included in
his e-mail (below) some hints on configuring printcap for LPRng. I'm still with
the good old Berkeley lpd...
Here is the patch he sent to me, for ml85p
to work with the TI Win/4 printer.
And here is his e-mail.
|Jun 18, 2002 -- A custom robot for your fetch needs
So you need to fetch many pages from some dynamic content page and
wget don't suit well the job? Maybe its time to write your custom robot.
You don't need to be scared of that. Tcl is a nice fit for the job, as you'll
see at our current tcl-guide article.
|Jun 12, 2002 -- GDI printers page
I've done some cleanup at our GDI Printers page,
fixing some broken links and missing packages. This is because I started to
work in another winprinter, the Canon LBP-460, listed as paperweight
in the Printing-FAQ (look at linuxprinting.org). I hope to increase my
collection of drivers for winprinters in a few days. Keep watching, for if I
find something interesting, I'll write more tutorial articles on my techniques
and tools for this reverse engineering.
Thanks Till Kamppeter for the nice gift (a Canon printer, of course!).
|Jun 05, 2002 Site reorganization.
Our site is being reorganized to have a better consistency and navigability.
If you find any missing links, please let me know. I hope you enjoy the new
content and presentation.
nor java applets, neither embedded flash animations.
Only teaching notes and tutorials on Linux programming, and free software.
|May 28, 2002 Comments on buddy allocators.
It is interesting to see old ideas rediscovered. In the 80's I have worked
out a buddy allocator for my language Filia (now defunct, there is not
even a web page, sorry! It was a mix of language and operating system for
the old 8080 and Z80 microprocessors. I have even ported it to a PC).
I have published a paper about our implementation in a
brazilian congress, coauthored by a mathematician friend of mine.
Now it seems that Linux have such kind of allocator too! Truly amazing!
If you don't know, buddy allocation takes advantage on the properties of
Fibonacci number series to avoid memory fragmentation.
What may I say?
Welcome to the new Linux kernel memory allocator!
|May 21, 2002 C fundamentals (course slides).
Here you will find slides from a C fundamentals
course (in portuguese) I
presented to a group of people last summer
(summer here, in southern hemisphere, I mean). Someday I will post the
example code (tons of small programs) of the course, if this
|May 17, 2002 Linux sob Medida.
Here you will find slides from my short course Linux sob medida (in portuguese). Enjoy!
|April 04, 2002 -- Changed home again.
Now I have my own domain and web server. I've got an ADSL connection, so updates
are going to be easier. Please bookmark just
as this the authoritative address, on my own server.
In a few days, I will setup the TinyCobolWiki here too. Let's see if the hacker that crashed it wants to fight!
|February 17, 2002 -- Yet another release of Pentax driver.
Here is yet another release of the
Pentax PocketJet II/200 printer driver. This incorporates discoveries made
by Rob Roy when debugging my code. Thanks Rob!
|January 5, 2002 -- Pentax printer driver.
Here is the latest
Pentax PocketJet II/200 printer driver.
It is being fully tested by the guys at Pentaxtech, and seems near
to completion now.
|December 16, 2001 -- Merry Christmas.
Ok, I have not much to say you in this 2001 Christmas, so here is what my
son Daniel have to show you.
written a short article
on my bookbinding
technique. (in portuguese only, sorry, but full of pictures)
Consider it as my gift, small but given from the bottom of my heart.
I wish you a Merry Christmas!
|December 10, 2001 -- New release Pentax PocketJet driver.
I'm still working with the Pentax PocketJet driver/filter, mostly on the GUI
for BSD-style lpd configuration.
Here is the new release
of the driver. The changes are needed because of the Red Hat, which changed
the way lpd/lpr works. If you run a decent Linux distro¸ you don't need to
upgrade. Anyway, bugs reports are welcome.
|December 6, 2001 -- Pentax PocketJet driver/filter.
Pentax Technologies manufacture a nice
family of printers, PocketJet II and PocketJet 200. They signed a contract
with me for developing a Linux driver for their printers, to be released under
GPL. So they are good guys, don't you think so? I do.
I'm still working on it, but
here is the first public release
of the driver, with graphical install and configuration
tools. If you have a laptop or notebook computer, those printers are a must to
have. They operate on thermal paper, so no ink cartdriges to change. And its
size and weight are very convenient. I know because I use mine :^)
|October 21, 2001 -- Networked slides presentation.
If you nead to give a presentation but have no laser projector available, or
will show it to several networked computers (some even far away), this program
will interest you. Tclslides require no
other program but a simple web browser at the client side to make your
presentation dynamic and full of content. For more information, read the user's
manual included in the (tiny, only 67KB) package.
|October 10, 2001 -- Tcl/tk slides.
There are new slides (about 50) from my Tcltk training. Please, look at the
links at our tcltk course notes page.
|September 30, 2001 -- Boycott W3C.
W3C, the web consortium used to be a free standards group. Now they changed
their way of thinking and are commited to a handful of software manufacturers,
like Micro$oft. What a shame! This is a worse terrorist attack to our freedom
than that of WTC. And we know the culprits, even without any FBI or CIA
investigation. Mr. Gates told us in advance he were going to "uncommoditize"
From now on, I don't want to have buttons for w3c
valid html, nor follow any standard from them. We at the free software
movement are going to have our own standards.
|September 06, 2001 -- Upgrade for viscomp.tcl.
After many changes in our TinyCobol parser, including the adoption of Bison as
a compiler generator, I found my little visual debugging tool broken. Here is the fixed version
that works both for yacc and bison output. This is of interest most for TC
developers or anyone that wants to debug a sort of yacc-based compiler, but
single stepping its parsing. In other words, this don't debug the cobol
code, but the compiler's code...
|September 03, 2001 -- Yet another TCGUI release.
I have release another snapshot of TCGUI.
This version supports tcl/tk8.0.x, so the guys with an old tcl/tk version may
still use our tool.
|September 02, 2001 -- New TCGUI release.
I have release another snapshot of TCGUI.
It will generate a graphical interface for your TinyCobol programs.
Go grab it and send me the bugs you find and suggestions for new features.
|September 02, 2001 -- Slides on Linux Programming.
Here are the slides
for a presentation on my model for software
development under Linux. The slide are in portuguese.
|July 19, 2001 -- New TCGUI version.
A brazilian cobol programmer, Luiz Fernando of Belo Horizonte, have asked
me for a couple changes in TCGUI. He is writing a POS (PDV in portuguese)
and decided to edit its windows in TCGUI.
Here is the newest release
of the software. Enjoy!
|May 24, 2001 -- TinyCobol presentation slides.
I have presented today a talk on TinyCobol at the
"I Forum Pernambucano de Linux", and
here are the slides
in html format (tar.gzipped) from the presentation.
The language is portuguese, but the pictures are in
"universal language" :^) Translations are encouraged and those slides are
released under a free publishing license (where may I find such license?).