Text Editors - Windows

EmEditor (link): text editor is a lightweight, yet extendable, easy-to-use text editor for Windows. EmEditor is very customizable, and it supports Unicode and powerful macros. EmEditor now supports very large files - up to 248 GB or 2.1 billion lines! EmEditor is certified for Windows Vista! The x64 Edition is also available! The portable version is also available for USB drive setup!

UltraEdit (link) is the ideal text, HTML and hex editor, and an advanced PHP, Perl, Java and JavaScript editor for programmers. UltraEdit is also an XML editor including a tree-style XML parser. An industry-award winner, UltraEdit supports disk-based 64-bit file handling (standard) on 32-bit Windows platforms (Windows 2000 and later). Download a free trial today and discover why UltraEdit is the defacto standard with over two million users worldwide.

Zeus Lite Editor (link) : Zeus is a powerful, full featured programmers IDE designed specifically for the task of software development. Zeus is packed full of features designed to make the task of writing code easier and more productive. The Zeus Lite editor is a free version of the Zeus for Windows IDE and it is in fact the original version 3.80 of Zeus for Windows.

EditPad Lite (link) : is a general-purpose text editor, designed to be small and compact, yet offer all the functionality you expect from a basic text editor. EditPad Lite works with Windows NT4, 98, 2000, ME, XP and Vista.
Note(s): Support text encoding conversion which is useful when doing localization work.


JujuEdit is a file editor, or alternatively a text editor with knobs-on. It is an application which is as non-destructive as possible: When you open a file, JujuEdit does NOT convert it into an internal file format. All conversion and interpretation is done on the fly, so that at any point during an edit you can choose to view your file in a different mode (ANSI/Unicode/UTF-8/Installed Code Pages/Binary), without the underlying data being converted. This was an important design decision which is to my knowledge unique to JujuEdit. It means that JujuEdit will tolerate unusual or unexpected characters (like NULLs or inconsistent CR/LF line endings) without clobbering them.
Filesize Max: 2GB

~ts

Installing Qt 4.6 in OpenSuse 11.2

This is a quick how-to in installing the latest, as of 12/24/2009, Qt framework 4.6 in OpenSuse 11.2.

By the way, Qt is a cross-platform application and UI framework. It can be used to develop web-enabled applications and user interfaces once and deploy them across Windows, Mac, Linux/X11, embedded Linux, Windows CE and Symbian.

Download the binaries from http://qt.nokia.com/. As of this writing, the latest version is 4.6 which comes with a lot of new features especially the multi-touch aware which is pretty much what is expected from latest generation of smartphone applications.

Change to the directory where the file was downloaded, like:

$: cd /home/username/
$: chmod u+x qt-sdk-linux-x86-opensource-2009.05.bin

What we just did was to make the file executable. Finally, install the application by running the following command:

$: ./qt-sdk-linux-x86-opensource-2009.05.bin

See below for screen capture while installing Qt.


Note that Qt SDK needs additional software to work properly, like gcc and related libraries.

~ts

Emacs common commands

Cursor movement:
C-p    : Move to the previous line
C-n    : Move to the next line
C-f    : Move forward one char
C-b    : Move backward one char
M-f    : Move forward one word
M-b    : Move backward one word
C-a    : Move cursor beggining of the line
C-e    : Move cursor end of the line
M->    : End of file
M-<    : Beginning of file

Copying Text:
M-w     : Runs command kill-ring-save. This is like copy in Windows editors

Deleting Text:
C- select text C-w
        : Delete selected text
M-d     : Kill the next word after the cursor

Convenience functions:
C-[number][char]
        : Repeat [char] [number] of times. Example C-80 1, repeat 1 80 times.

Dictionary:
M-$     : Check and correct spelling for the word at point

Others:
count-lines-region      
        : Count number line and chars for the selected text
untabify
        : Change tabs to space for the currently selected region

Prolog reference materials

Tutorials:
Prolog tutorial by J. R. Fisher

Prolog compilers/interpreters:
SWI-Prolog is  a Prolog  implementation based  on a  subset of
the  WAM (Warren Abstract  Machine)

~ts

Installing VirtualBox guest additions in Fedora 11 guest

This is a short guide on how to install VirtualBox 3.0.6 guest additions in Fedora 11.

It is always a good practice to update your system before installing VirtualBox guest additions, so let us do just that. Open a terminal in Fedora guest, thus say,

Login as root:

$: su

Check for updates and install as necessary

#: yum check-update
#: yum update

Note that when I installed Fedora 11, I selected Development machine, so most of the common development tools are already installed by default. But if you have selected Destkop machine, then you have to do the following:

#: yum -y install gcc kernel-devel

You probably need to reboot after all the updates. It is now time to install the Virtual Box guest additions. From the host machine, using Virtual Box main application do, "Devices > Install Guest Additions..." or

You should note that in the guest machine, Fedora 11, will mount the guest addition automatically. Now it is time to install the much needed software. Open a terminal and do the following commands.

$: su
#: cd /media/VBOXADDITIONS_3.0.6_52128
#: ./VBoxLinuxAdditions-x86.run
You should be seeing something like:

Verifying archive integrity... All good.
Uncompressing VirtualBox 3.0.6 Guest Additions for Linux installation................................................................................................................................................................................................................................
VirtualBox 3.0.6 Guest Additions installation
Building the VirtualBox Guest Additions kernel module...
Building the shared folder support kernel module...
Building the drm support kernel module...
Installing the VirtualBox Guest Additions...

Successfully installed the VirtualBox Guest Additions.
You must restart your guest system in order to complete the installation.

Reboot your machine as instructed... Congratulations!!! You now have integrated guest additions!!!

References:
http://www.kombitz.com/2009/06/12/fedora-11-and-virutalbox-2-2-guest-additions/


~ts.

Creating new user in Fedora Linux

Creating a user in Fedora now is so much easier that it used to 5 years ago. To do this, do "System > Administration > Users and Group" or through console command "system-config-users" as regular user.

Once the program is run it should ask for root password.

Once the required password is entered, you should see a window as shown below.

Now to create the new user either do "File > Add User" or click on Add User button. Let us try to create a new user with the corresponding information:
User Name: timus
Full Name: Timus Tunes
Password : password
Confirm Password : password
Login Shell: /bin/bash
Leave the rest with the default values.

Enjoy!
~ts

Fedora 11 Fatal boot failure on vbox

I tried installing Fedora 11 on Virtual Box 3.0.6 and really surprised of the result after the first reboot, I was presented with following fatal error message:

Booting from local disk...
FATAL: INT18: BOOT FAILURE

Or this image capture:

Though the issue is easy to work-around, thus say, unmount the DVDROM from VirtualBox but this got me thinking why this issue not present in Ubuntu 9.04 or OpenSUSE 11.1? Was this a regression from Fedora or due to VirtualBox?

Note that this issue was reported in Virtual Box and claimed to be an issue with Fedora installer. But this issue was reported way back Fedora 10? :(...

I wish I am brave enough to mess around with probably GRUB or Linux kernel to help fix this minor hiccup.

~ts