Free interactive software for linux

IO::Interactive is a Perl module with utilities for interactive I/O.

SYNOPSIS

use IO::Interactive qw(is_interactive interactive busy);

if ( is_interactive() ) {
print "Running interactivelyn";
}

# or...

print {interactive} "Running interactivelyn";


$fh = busy {
do_noninteractive_stuff();
}

This module provides three utility subroutines that make it easier to develop interactive applications...

is_interactive()

This subroutine returns true if *ARGV and *STDOUT are connected to the terminal. The test is considerably more sophisticated than:

-t *ARGV && -t *STDOUT

as it takes into account the magic behaviour of *ARGV.

You can also pass is_interactive a writable filehandle, in which case it requires that filehandle be connected to a terminal (instead of *STDOUT). The usual suspect here is *STDERR:

if ( is_interactive(*STDERR) ) {
carp $warning;
}
interactive()

This subroutine returns *STDOUT if is_interactive is true. If is_interactive() is false, interactive returns a filehandle that does not print.

This makes it easy to create applications that print out only when the application is interactive:

print {interactive} "Please enter a value: ";
my $value = ;

You can also pass interactive a writable filehandle, in which case it writes to that filehandle if it is connected to a terminal (instead of writinbg to *STDOUT). Once again, the usual suspect is *STDERR:

print {interactive(*STDERR)} $warning;

busy {...}

This subroutine takes a block as its single argument and executes that block. Whilst the block is executed, *ARGV is temporarily replaced by a closed filehandle. That is, no input from *ARGV is possible in a busy block. Furthermore, any attempts to send input into the busy block through *ARGV is intercepted and a warning message is printed to *STDERR. The busy call returns a filehandle that contains the intercepted input.

A busy block is therefore useful to prevent attempts at input when the program is busy at some non-interactive task.

Interactive BDD Environment project is a shell like utility for working with ROBDDs.

IBEN is a tool used for teaching Reduced Ordered Binary Decision Diagrams.

It allows the student to work with ROBDDs without learning a complex C or C++ interface to an ROBDD package.

One can enter the expressions interactively, and view the result as a graph or ask questions about the ROBDD, such as the number of nodes in the ROBDD.

Orca Interactive Forum Script is an interactive Web-based forum script that is based on AJAX technology,
In the world of accelerating technologies you dont want archaic forum software. You want something new, fresh, classy, stylish and sexy - just like Orca.
Orca introduces a new approach to building online discussion boards. The main focus in Orca is given to self-moderation - it provides tools to build a community without -moderators or administrators. It gives true freedom.
Main features:
AJAXy
- AJAX is cool and trendy, but whats more important - it makes web apps work better. Orca is an AJAX forums script, using AJAX exactly where it should be used. This brings unique user experiences and considerable server load savings.
Self-ruling
- Forums need close attention to run smoothly. Orca doesnt. We built Orca as a self-moderated community script, which can work effectively without any moderators whatsoever. This is the main difference, and Orca will be getting better at it.
Integratable
- You might already have a website, and it might already have a good database of users. Orca is remarkably easy to integrate with your existing user database. You just add it to your site, and it accepts existing members with their photos and passwords.
GPL-licensed
- Free community needs a free forum script. Orca is completely free, open-source and free in terms of licensing. It is distributed under GPL license, which should uncover its potential and make it #1 forum software on the net.
Enhancements:
- This release added a live post tracker, "Sticky" topics, an advanced WYSIWYG post editor, a "Reply with quote" option, and wider support for hosting setups.

slakbootIBS (Slackware Interactive Boot Scripts) is an enhanced set of replacement boot scripts for the Slackware Linux distribution.

Slackware Interactive Boot Scripts includes a set of control and dispatch tools for configuring and booting with colorized interactive scripts. The new boot process allows the operator to select or skip start-up components in realtime.

It facilitates debugging of startup problems and allows operators to maintain a common baseline to support several local configurations or multiple servers with a single set of scripts.

intime project is an interactive, graphic school timetable editor.
intime allows you to use drag and drop to generate or modify a schools weekly schedule.
Given students grouping and curriculum, it can assign teachers, times, and rooms to the lessons.
Enhancements:
- Stable and usable.
- Functionality as of r0.0.0.
- File formats as of r0.0.1.
- Data structures still very simple, no possibility to break classes into subgroups.
- Room assignment not yet implemented.

Light Speed! project is an interactive relativistic simulator.
Light Speed! is an OpenGL-based program which illustrates the effects of special relativity on the appearance of moving objects.
When an object accelerates past a few million meters per second, these effects begin to grow noticeable, becoming more and more pronounced as the speed of light is approached.
These relativistic effects are viewpoint-dependent, and include shifts in length, object hue, brightness and shape.
Main features:
- Real-time interactive viewing
- 3D object importer
- Snapshot exporter
- Special Relativity Scene (SRS) exporter
- Reference geometry
- Independent toggles for the four relativistic effects
- Numerical camera location + target readout and input
- Switchable background color

kraskarta is an interactive map engine. It is based on Macromedia Flash technology with server scripts written in Perl with a PostgreSQL database.
kraskartas features include the ability to search for a street and address, for a bus route, and for information about objects.
Enhancements:
- This is the first open release after being proprietary code.

Hanzi Master project is a visual, interactive Chinese character and word dictionary.
Hanzim ("Hanzi Master") is an interactive visual dictionary for learning and seeing relationships between Chinese radicals, characters, and compounds.
All the characters with a given radical, phonetic component, or pronunciation can be displayed, and all words containing a character, with English meanings.
All data is stored locally. Either simplified or traditional characters can be used.
Main features:
- typing in pinyin gives list of characters and definitions with that pronunciation
- clicking on a radical gives list of characters and definitions with that radical
- clicking on any character in any list displays that character along with the compounds it occurs in as the first or second character.