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Derbrill Tutorials
Derbrill Tutorials are Free Tutorials For Writing Games and Multimedia Applications in Runtime Revolution with ArcadeEngine. more>>
Derbrill Tutorials are Free Tutorials For Writing Games and Multimedia Applications in Runtime Revolution with ArcadeEngine.
The tutorials come in a visually appealing e-book format which is both easy to read and use, the range of topics covered includes:
* The basics of Revolution such as: stacks, cards, scripts, messages and timers
* How to use geometric properties such as distances, angles and intersection rectangles
* Understanding and using different movements including linear, polygonal, circular and elliptic
* Advanced use of images
* Using the built-in collision detection
<<lessThe tutorials come in a visually appealing e-book format which is both easy to read and use, the range of topics covered includes:
* The basics of Revolution such as: stacks, cards, scripts, messages and timers
* How to use geometric properties such as distances, angles and intersection rectangles
* Understanding and using different movements including linear, polygonal, circular and elliptic
* Advanced use of images
* Using the built-in collision detection
Download (4.2MB)
Added: 2005-10-17 License: Freeware Price:
1470 downloads
Archie 2007.08 Beta
Archie is a complete live Arch linux system to be run from a CD/USB, built with the KISS philosophy in mind. more>>
Archie project is a complete live Arch linux system (v0.7) to be run from a cd/usb, built with the KISS philosophy in mind. No packages have been stripped to provide a full Arch linux system, yet deliver fastest performance with no extensive bloating.
Archie uses its own hw-detection tool (lshwd) ideally to support a wide range of hardware with low detection time. Archie also provides extended features like multi-lingual, nesting capabilities and hd-install.
Main features:
- KISS
- Performance, performance, performance
- Unique hw-detection tool (lshwd)
- Automatic desktop/optional startup dialogs
- nesting root (/) or home (/home) directories
- hd-install
<<lessArchie uses its own hw-detection tool (lshwd) ideally to support a wide range of hardware with low detection time. Archie also provides extended features like multi-lingual, nesting capabilities and hd-install.
Main features:
- KISS
- Performance, performance, performance
- Unique hw-detection tool (lshwd)
- Automatic desktop/optional startup dialogs
- nesting root (/) or home (/home) directories
- hd-install
Download (330MB)
Added: 2007-08-02 License: GPL (GNU General Public License) Price:
813 downloads
JOpt.SDK Vehicle Routing Component 2.0.0 (Tutorial)
JOpt.SDK library is a routing software for Java that uses specialized genetic algorithms. more>>
JOpt.SDK library is a routing software for Java that uses specialized genetic algorithms to calculate an optimized allocation of orders and stops to mobile resources.
The algorithm not only provides tours at minimum costs but also considers an arbitrary set of constraints for each tour. You may define your own constraints and optimization goals in order to customize JOpt.SDK to your specific planning needs or you decide to use one of our best practices addons in order to achieve a fast application of our optimization algorithms to selected industries.
JOpt.SDK can solve nearly any problem that can be classified by one of the following types:
TSP - Traveling Salesman Problem. JOpt.SDK finds the shortest or fastest path for your mobile resources
VRPTW - Vehicle routing problem with time windows - like TSP but for a set of vehicles. JOpt.SDK finds an optimal allocation of orders and stops within a vehicle fleet. It may also consider different constraints for vehicles, drivers and stops.
JOpt.SDK functionality can be accessed via Java API and thus fits seamlessly into any JAVA application. Software developers may integrate the JOpt.SDK component into their application in order to offer their customers a consistent solution including optimization of mobile workforce schedules.
Enhancements:
- The tutorial has been revised to reflect some major API changes introduced since JOpt 2.0.0.
<<lessThe algorithm not only provides tours at minimum costs but also considers an arbitrary set of constraints for each tour. You may define your own constraints and optimization goals in order to customize JOpt.SDK to your specific planning needs or you decide to use one of our best practices addons in order to achieve a fast application of our optimization algorithms to selected industries.
JOpt.SDK can solve nearly any problem that can be classified by one of the following types:
TSP - Traveling Salesman Problem. JOpt.SDK finds the shortest or fastest path for your mobile resources
VRPTW - Vehicle routing problem with time windows - like TSP but for a set of vehicles. JOpt.SDK finds an optimal allocation of orders and stops within a vehicle fleet. It may also consider different constraints for vehicles, drivers and stops.
JOpt.SDK functionality can be accessed via Java API and thus fits seamlessly into any JAVA application. Software developers may integrate the JOpt.SDK component into their application in order to offer their customers a consistent solution including optimization of mobile workforce schedules.
Enhancements:
- The tutorial has been revised to reflect some major API changes introduced since JOpt 2.0.0.
Download (MB)
Added: 2007-05-08 License: Free For Educational Use Price:
903 downloads
Sub::Exporter::Tutorial 0.970
Sub::Exporter::Tutorial is a friendly guide to exporting with Sub::Exporter. more>>
Sub::Exporter::Tutorial is a friendly guide to exporting with Sub::Exporter.
Whats an Exporter?
When you use a module, first it is required, then its import method is called. The Perl documentation tells us that the following two lines are equivalent:
use Module LIST;
BEGIN { require Module; Module->import(LIST); }
The import method is the modules exporter.
The Basics of Sub::Exporter
Sub::Exporter builds a custom exporter which can then be installed into your module. It builds this method based on configuration passed to its setup_exporter method.
A very basic use case might look like this:
package Addition;
use Sub::Exporter;
Sub::Exporter::setup_exporter({ exports => [ qw(plus) ]});
sub plus { my ($x, $y) = @_; return $x + $y; }
This would mean that when someone used your Addition module, they could have its plus routine imported into their package:
use Addition qw(plus);
my $z = plus(2, 2); # this works, because now plus is in the main package
That syntax to set up the exporter, above, is a little verbose, so for the simple case of just naming some exports, you can write this:
use Sub::Exporter -setup => { exports => [ qw(plus) ] };
...which is the same as the original example -- except that now the exporter is built and installed at compile time. Well, that and you typed less.
Using Export Groups
You can specify whole groups of things that should be exportable together. These are called groups. Exporter calls these tags. To specify groups, you just pass a groups key in your exporter configuration:
package Food;
use Sub::Exporter -setup => {
exports => [ qw(apple banana beef fluff lox rabbit) ],
groups => {
fauna => [ qw(beef lox rabbit) ],
flora => [ qw(apple banana) ],
}
};
Now, to import all that delicious foreign meat, your consumer needs only to write:
use Food qw(:fauna);
use Food qw(-fauna);
Either one of the above is acceptable. A colon is more traditional, but barewords with a leading colon cant be enquoted by a fat arrow. Well see why that matters later on.
Groups can contain other groups. If you include a group name (with the leading dash or colon) in a group definition, it will be expanded recursively when the exporter is called. The exporter will not recurse into the same group twice while expanding groups.
There are two special groups: all and default. The all group is defined by default, and contains all exportable subs. You can redefine it, if you want to export only a subset when all exports are requested. The default group is the set of routines to export when nothing specific is requested. By default, there is no default group.
<<lessWhats an Exporter?
When you use a module, first it is required, then its import method is called. The Perl documentation tells us that the following two lines are equivalent:
use Module LIST;
BEGIN { require Module; Module->import(LIST); }
The import method is the modules exporter.
The Basics of Sub::Exporter
Sub::Exporter builds a custom exporter which can then be installed into your module. It builds this method based on configuration passed to its setup_exporter method.
A very basic use case might look like this:
package Addition;
use Sub::Exporter;
Sub::Exporter::setup_exporter({ exports => [ qw(plus) ]});
sub plus { my ($x, $y) = @_; return $x + $y; }
This would mean that when someone used your Addition module, they could have its plus routine imported into their package:
use Addition qw(plus);
my $z = plus(2, 2); # this works, because now plus is in the main package
That syntax to set up the exporter, above, is a little verbose, so for the simple case of just naming some exports, you can write this:
use Sub::Exporter -setup => { exports => [ qw(plus) ] };
...which is the same as the original example -- except that now the exporter is built and installed at compile time. Well, that and you typed less.
Using Export Groups
You can specify whole groups of things that should be exportable together. These are called groups. Exporter calls these tags. To specify groups, you just pass a groups key in your exporter configuration:
package Food;
use Sub::Exporter -setup => {
exports => [ qw(apple banana beef fluff lox rabbit) ],
groups => {
fauna => [ qw(beef lox rabbit) ],
flora => [ qw(apple banana) ],
}
};
Now, to import all that delicious foreign meat, your consumer needs only to write:
use Food qw(:fauna);
use Food qw(-fauna);
Either one of the above is acceptable. A colon is more traditional, but barewords with a leading colon cant be enquoted by a fat arrow. Well see why that matters later on.
Groups can contain other groups. If you include a group name (with the leading dash or colon) in a group definition, it will be expanded recursively when the exporter is called. The exporter will not recurse into the same group twice while expanding groups.
There are two special groups: all and default. The all group is defined by default, and contains all exportable subs. You can redefine it, if you want to export only a subset when all exports are requested. The default group is the set of routines to export when nothing specific is requested. By default, there is no default group.
Download (0.034MB)
Added: 2006-10-16 License: Perl Artistic License Price:
1104 downloads
XML::Smart::Tutorial 1.6.9
XML::Smart::Tutorial is a Perl module with tutorials and examples for XML::Smart. more>>
XML::Smart::Tutorial is a Perl module with tutorials and examples for XML::Smart.
SYNOPSIS
This document is a tutorial for XML::Smart and shows some examples of usual things.
<<lessSYNOPSIS
This document is a tutorial for XML::Smart and shows some examples of usual things.
Download (0.049MB)
Added: 2006-09-12 License: GPL (GNU General Public License) Price:
1144 downloads
KDE Simple Programming Tutorial 1.2
KDE Simple Programming Tutorial is a tutorial for developing a KDE application. more>>
KDE Simple Programming Tutorial is a tutorial for developing a KDE application.
With the only requirement of a little C++ knowledge, and using the latest KDE snapshots, the reader will learn how to build his/her first KDE application from a simple "Hello world" button to a Web browser with a DCOP interface that communicates with a bookmark application running in a separate process.
Theres also a spanish and a romanian version of the documentation.
<<lessWith the only requirement of a little C++ knowledge, and using the latest KDE snapshots, the reader will learn how to build his/her first KDE application from a simple "Hello world" button to a Web browser with a DCOP interface that communicates with a bookmark application running in a separate process.
Theres also a spanish and a romanian version of the documentation.
Download (MB)
Added: 2006-10-04 License: GPL (GNU General Public License) Price:
1121 downloads
PAR::Tutorial 0.941
PAR::Tutorial is a cross-platform Packaging and Deployment with PAR. more>>
PAR::Tutorial is a cross-platform Packaging and Deployment with PAR.
SYNOPSIS
This is a tutorial on PAR, first appeared at the 7th Perl Conference. The HTML version of this tutorial is available online as http://aut.dyndns.org/par-tutorial/.
On Deploying Perl Applications
% sshnuke.pl 10.2.2.2 -rootpw="Z1ON0101"
Perl v5.6.1 required--this is only v5.6.0, stopped at sshnuke.pl line 1.
BEGIN failed--compilation aborted at sshnuke.pl line 1.
Q: "Help! I cant run your program!"
A1: Install Perl & perl -MCPAN -einstall(...)
How do we know which modules are needed?
New versions of CPAN modules may break sshnuke.pl
A2: Install Perl & tar zxf my_perllib.tgz
Possibly overwriting existing modules; not cross-platform at all
A3: Use the executable generated by perlcc sshnuke.pl
Impossible to debug; perlcc usually does not work anyway
<<lessSYNOPSIS
This is a tutorial on PAR, first appeared at the 7th Perl Conference. The HTML version of this tutorial is available online as http://aut.dyndns.org/par-tutorial/.
On Deploying Perl Applications
% sshnuke.pl 10.2.2.2 -rootpw="Z1ON0101"
Perl v5.6.1 required--this is only v5.6.0, stopped at sshnuke.pl line 1.
BEGIN failed--compilation aborted at sshnuke.pl line 1.
Q: "Help! I cant run your program!"
A1: Install Perl & perl -MCPAN -einstall(...)
How do we know which modules are needed?
New versions of CPAN modules may break sshnuke.pl
A2: Install Perl & tar zxf my_perllib.tgz
Possibly overwriting existing modules; not cross-platform at all
A3: Use the executable generated by perlcc sshnuke.pl
Impossible to debug; perlcc usually does not work anyway
Download (0.19MB)
Added: 2006-07-20 License: Perl Artistic License Price:
1194 downloads
HBasic 2007-02a
HBasic is an integrated development environment used to create, execute and debug programs with an BASIC style language. more>>
HBasic project is an integrated development environment used to create, execute and debug programs with an BASIC style language.
HBasic has object oriented features either in combination with precompiled C++ components (shared libraries) or class definitions (HBasic sourcecode). This also includes a version of inheritance.
HBasic runs on Linux and uses the Trolltech Qt library (>= 3.2). The syntax of the BASIC language and parts of the IDE are similar to existing BASIC IDEs to simplify using this new language.
<<lessHBasic has object oriented features either in combination with precompiled C++ components (shared libraries) or class definitions (HBasic sourcecode). This also includes a version of inheritance.
HBasic runs on Linux and uses the Trolltech Qt library (>= 3.2). The syntax of the BASIC language and parts of the IDE are similar to existing BASIC IDEs to simplify using this new language.
Download (8.1MB)
Added: 2007-03-21 License: GPL (GNU General Public License) Price:
953 downloads
MARC::Doc::Tutorial 2.00
MARC::Doc::Tutorial is a documentation-only module for new users of MARC::Record. more>>
MARC::Doc::Tutorial is a documentation-only module for new users of MARC::Record.
SYNOPSIS
perldoc MARC::Doc::Tutorial
What is MARC?
The MAchine Readable Cataloging format was designed by the Library of Congress in the late 1960s in order to allow libraries to convert their card catalogs into a digital format. The advantages of having computerized card catalogs were soon realized, and now MARC is being used by all sorts of libraries around the world to provide computerized access to their collections. MARC data in transmission format is optimized for processing by computers, so its not very readable for the normal human. For more about the MARC format, visit the Library of Congress at http://www.loc.gov/marc/
What is this Tutorial?
The document you are reading is a beginners guide to using Perl to processing MARC data, written in the cookbook style. Inside, you will find recipes on how to read, write, update and convert MARC data using the MARC::Record CPAN package. As with any cookbook, you should feel free to dip in at any section and use the recipe you find interesting.
If you are new to Perl, you may want to read from the beginning.
The document you are reading is distributed with the MARC::Record package, however in case you are reading it somewhere else, you can find the latest version at CPAN: http://www.cpan.org/modules/by-module/MARC/. Youll notice that some sections arent filled in yet, which is a result of this document being a work in progress. If you have ideas for new sections please make a suggestion to perl4lib: http://www.rice.edu/perl4lib/.
<<lessSYNOPSIS
perldoc MARC::Doc::Tutorial
What is MARC?
The MAchine Readable Cataloging format was designed by the Library of Congress in the late 1960s in order to allow libraries to convert their card catalogs into a digital format. The advantages of having computerized card catalogs were soon realized, and now MARC is being used by all sorts of libraries around the world to provide computerized access to their collections. MARC data in transmission format is optimized for processing by computers, so its not very readable for the normal human. For more about the MARC format, visit the Library of Congress at http://www.loc.gov/marc/
What is this Tutorial?
The document you are reading is a beginners guide to using Perl to processing MARC data, written in the cookbook style. Inside, you will find recipes on how to read, write, update and convert MARC data using the MARC::Record CPAN package. As with any cookbook, you should feel free to dip in at any section and use the recipe you find interesting.
If you are new to Perl, you may want to read from the beginning.
The document you are reading is distributed with the MARC::Record package, however in case you are reading it somewhere else, you can find the latest version at CPAN: http://www.cpan.org/modules/by-module/MARC/. Youll notice that some sections arent filled in yet, which is a result of this document being a work in progress. If you have ideas for new sections please make a suggestion to perl4lib: http://www.rice.edu/perl4lib/.
Download (0.77MB)
Added: 2007-07-10 License: GPL (GNU General Public License) Price:
836 downloads
Prima::tutorial 1.20
Prima::tutorial is an introductory tutorial. more>>
Prima::tutorial is an introductory tutorial.
Programming graphic interfaces is often considered somewhat boring, and not without a cause. It is a small pride in knowing that your buttons and scrollbars work exactly as millions of others buttons and scrollbars do, so whichever GUI toolkit is chosen, it is usually regarded as a tool of small importance, and the less obtrusive, the better.
Given that, and trying to live up to the famous Perl making easy things easy and hard things possible mantra, this manual page is an introductory tutorial meant to show how to write easy things easy. The hard things are explained in the other Prima manual pages ( see Prima ).
<<lessProgramming graphic interfaces is often considered somewhat boring, and not without a cause. It is a small pride in knowing that your buttons and scrollbars work exactly as millions of others buttons and scrollbars do, so whichever GUI toolkit is chosen, it is usually regarded as a tool of small importance, and the less obtrusive, the better.
Given that, and trying to live up to the famous Perl making easy things easy and hard things possible mantra, this manual page is an introductory tutorial meant to show how to write easy things easy. The hard things are explained in the other Prima manual pages ( see Prima ).
Download (1.4MB)
Added: 2006-08-24 License: Perl Artistic License Price:
1162 downloads
RiveScript::Tutorial 1.02
RiveScript::Tutorial is a beginners guide to creating their first RiveScript brain. more>>
RiveScript::Tutorial is a beginners guide to creating their first RiveScript brain.
This tutorial outlines the various capabilities of the RiveScript specification and offers some recommended pointers for creating a well-formed RiveScript brain. What you do with this knowledge is up to you; be creative!
Be sure to skim over the RiveScript manpage first, because this tutorial jumps right in to using the various RiveScript commands without always explaining what each of them do.
A Simple RiveScript Interpreter
Here is a simple Perl script for running a RiveScript interpreter. This assumes that the brains RS files will be stored in a directory called "tutorial", local to the Perl script. Youd want to edit certain parameters in this code if you see fit.
#!/usr/bin/perl -w
use strict;
use warnings;
use RiveScript;
# Create the RiveScript interpreter.
my $rive = new RiveScript();
# Load the RS tutorial brain.
$rive->loadDirectory ("./tutorial");
# Sort them.
$rive->sortReplies;
# Go into a chatting loop.
while (1) {
print "User> ";
my $msg = ;
chomp $msg;
# Grab a reply.
my @reply = $rive->reply (user,$msg);
print " Bot> $_n" foreach(@reply);
}
<<lessThis tutorial outlines the various capabilities of the RiveScript specification and offers some recommended pointers for creating a well-formed RiveScript brain. What you do with this knowledge is up to you; be creative!
Be sure to skim over the RiveScript manpage first, because this tutorial jumps right in to using the various RiveScript commands without always explaining what each of them do.
A Simple RiveScript Interpreter
Here is a simple Perl script for running a RiveScript interpreter. This assumes that the brains RS files will be stored in a directory called "tutorial", local to the Perl script. Youd want to edit certain parameters in this code if you see fit.
#!/usr/bin/perl -w
use strict;
use warnings;
use RiveScript;
# Create the RiveScript interpreter.
my $rive = new RiveScript();
# Load the RS tutorial brain.
$rive->loadDirectory ("./tutorial");
# Sort them.
$rive->sortReplies;
# Go into a chatting loop.
while (1) {
print "User> ";
my $msg = ;
chomp $msg;
# Grab a reply.
my @reply = $rive->reply (user,$msg);
print " Bot> $_n" foreach(@reply);
}
Download (0.20MB)
Added: 2006-12-06 License: Perl Artistic License Price:
1064 downloads
Apache::PAR::tutorial 0.30
Apache::PAR::tutorial is a Perl module with information on getting Apache::PAR up and running. more>>
Apache::PAR::tutorial is a Perl module with information on getting Apache::PAR up and running.
Apache::PAR is a framework for including Perl ARchive files in a mod_perl (1.x or 2.x) environment. It allows an author to package up a web application, including configuration, static files, Perl modules, and Registry and PerlRun scripts to include in a single file. This archive can then be moved to other locations on the same system or distributed and loaded with a single set of configuration options in the Apache configuration.
These modules are based on PAR.pm by Autrijus Tang and Archive::Zip by Ned Konz as well as the mod_perl modules. They extend the concept of PAR files to mod_perl, similar to how WAR archives work for Java. An archive (which is really a zip file), contains one or more elements which can be served to clients making requests to an Apache web server. Scripts, modules, and static content should then be able to be served from within the .par archive without modifications.
For the package developer
For the package developer, Apache::PAR allows for easy package management, which frees the author from the task of creating a full Perl package. Apache::PAR allows the package developer to set the required Apache configuration directly in a package which greatly simplifies the install process for the end user and gives the the developer the ability to assign URLs which remain the same on all systems that the package is installed on. It is possible to decompress the contents of the PAR file during startup, which allows the use of code which relies on outside content (templating systems, etc)
For the package user
Once Apache::PAR is installed, it can be configured in an Apache configuration file with as little as two lines. Once setup, to add a new .par package to the system a user only has to place the package in the directory specified in the Apache configuration and restart Apache. All other configuration needs are provided by the module itself.
<<lessApache::PAR is a framework for including Perl ARchive files in a mod_perl (1.x or 2.x) environment. It allows an author to package up a web application, including configuration, static files, Perl modules, and Registry and PerlRun scripts to include in a single file. This archive can then be moved to other locations on the same system or distributed and loaded with a single set of configuration options in the Apache configuration.
These modules are based on PAR.pm by Autrijus Tang and Archive::Zip by Ned Konz as well as the mod_perl modules. They extend the concept of PAR files to mod_perl, similar to how WAR archives work for Java. An archive (which is really a zip file), contains one or more elements which can be served to clients making requests to an Apache web server. Scripts, modules, and static content should then be able to be served from within the .par archive without modifications.
For the package developer
For the package developer, Apache::PAR allows for easy package management, which frees the author from the task of creating a full Perl package. Apache::PAR allows the package developer to set the required Apache configuration directly in a package which greatly simplifies the install process for the end user and gives the the developer the ability to assign URLs which remain the same on all systems that the package is installed on. It is possible to decompress the contents of the PAR file during startup, which allows the use of code which relies on outside content (templating systems, etc)
For the package user
Once Apache::PAR is installed, it can be configured in an Apache configuration file with as little as two lines. Once setup, to add a new .par package to the system a user only has to place the package in the directory specified in the Apache configuration and restart Apache. All other configuration needs are provided by the module itself.
Download (0.025MB)
Added: 2006-10-12 License: Perl Artistic License Price:
1107 downloads
Array::Each::Tutorial 0.02
Array::Each::Tutorial - POD giving various examples how to use Array::Each. more>>
Array::Each::Tutorial - POD giving various examples how to use Array::Each.
SYNOPSIS
man Array::Each
man Array::Each::Tutorial
or
perldoc Array::Each
perldoc Array::Each::Tutorial
Overview
This tutorial contains only POD, so dont do this:
use Array::Each::Tutorial; # dont do this
Rather, simply read the POD (as you are doing). But first, please read the docs for Array::Each, because the whole scoop is there.
This tutorial is intended to augment those docs with examples showing situations where you might want to use Array::Each instead of other techniques.
EXAMPLES
Parallel Arrays vs. Using a Hash
First of all, use a hash. Its almost always the best solution if you want to associate a "key" with a "value". And there are modules available that will let you do wonderful things with hashes, like keeping the keys sorted or keeping them in the order they were added.
So given a hash, you might at some point want to do this:
my %h = ( a=>1, b=>2, c=>3, d=>4, e=>5 );
while( my( $k, $v ) = each %h ) {
# ... do something with $k and $v ...
}
On the other hand, if parallel arrays better implement your algorithm, then you may find you want to do something like this:
my @k = qw( a b c d e );
my @v = qw( 1 2 3 4 5 );
for my $i ( 0 .. $#k ) {
my( $k, $v ) = ( $k[$i], $v[$i] );
# ... do something with $k and $v (and maybe $i) ...
}
Using Array::Each, you could do the same thing this way:
use Array::Each;
my @k = qw( a b c d e );
my @v = qw( 1 2 3 4 5 );
my $obj = Array::Each->new( @k, @v );
while( my( $k, $v, $i ) = $obj->each ) {
# ... do something with $k and $v (and maybe $i) ...
}
If you dont need $i at all, you can leave it out, e.g.,
while( my( $k, $v ) = $obj->each ) {
# ... do something with $k and $v ...
}
If you have more than two parallel arrays, include them all in the call to new() and add as many "capture" variables as you need, e.g.,
my @k = qw( a b c d e );
my @v = qw( 1 2 3 4 5 );
my @p = qw( - + ~ = : );
my $obj = Array::Each->new( @k, @v, @p );
while( my( $k, $v, $p, $i ) = $obj->each ) {
# ... do something with $k, $v, and $p (and maybe $i) ...
}
<<lessSYNOPSIS
man Array::Each
man Array::Each::Tutorial
or
perldoc Array::Each
perldoc Array::Each::Tutorial
Overview
This tutorial contains only POD, so dont do this:
use Array::Each::Tutorial; # dont do this
Rather, simply read the POD (as you are doing). But first, please read the docs for Array::Each, because the whole scoop is there.
This tutorial is intended to augment those docs with examples showing situations where you might want to use Array::Each instead of other techniques.
EXAMPLES
Parallel Arrays vs. Using a Hash
First of all, use a hash. Its almost always the best solution if you want to associate a "key" with a "value". And there are modules available that will let you do wonderful things with hashes, like keeping the keys sorted or keeping them in the order they were added.
So given a hash, you might at some point want to do this:
my %h = ( a=>1, b=>2, c=>3, d=>4, e=>5 );
while( my( $k, $v ) = each %h ) {
# ... do something with $k and $v ...
}
On the other hand, if parallel arrays better implement your algorithm, then you may find you want to do something like this:
my @k = qw( a b c d e );
my @v = qw( 1 2 3 4 5 );
for my $i ( 0 .. $#k ) {
my( $k, $v ) = ( $k[$i], $v[$i] );
# ... do something with $k and $v (and maybe $i) ...
}
Using Array::Each, you could do the same thing this way:
use Array::Each;
my @k = qw( a b c d e );
my @v = qw( 1 2 3 4 5 );
my $obj = Array::Each->new( @k, @v );
while( my( $k, $v, $i ) = $obj->each ) {
# ... do something with $k and $v (and maybe $i) ...
}
If you dont need $i at all, you can leave it out, e.g.,
while( my( $k, $v ) = $obj->each ) {
# ... do something with $k and $v ...
}
If you have more than two parallel arrays, include them all in the call to new() and add as many "capture" variables as you need, e.g.,
my @k = qw( a b c d e );
my @v = qw( 1 2 3 4 5 );
my @p = qw( - + ~ = : );
my $obj = Array::Each->new( @k, @v, @p );
while( my( $k, $v, $p, $i ) = $obj->each ) {
# ... do something with $k, $v, and $p (and maybe $i) ...
}
Download (0.020MB)
Added: 2007-07-14 License: Perl Artistic License Price:
832 downloads
Gantry::Docs::Tutorial 3.40
Gantry::Docs::Tutorial is a Perl module for The Gantry Tutorial. more>>
Gantry::Docs::Tutorial is a Perl module for The Gantry Tutorial.
Gantry is a mature web framework, released in late 2005 onto an unsuspecting world. For more information on the framework, its features and history, see Gantry::Docs::About.
Here we will explore the basic workings of Gantry by constructing a very simple application. Dont let the simplicity of this example fool you -- this framework has extreme flexibility in delivering applications with web and scripted components. The example in this document is only to get you started.
This document begins by describing a simple one-table management application. It walks through the process of building the application. Then, it shows a tool -- called Bigtop -- which can be used to build the application from a relatively small configuration file. Finally, it shows how to add another table and regenerate the app via Bigtop.
<<lessGantry is a mature web framework, released in late 2005 onto an unsuspecting world. For more information on the framework, its features and history, see Gantry::Docs::About.
Here we will explore the basic workings of Gantry by constructing a very simple application. Dont let the simplicity of this example fool you -- this framework has extreme flexibility in delivering applications with web and scripted components. The example in this document is only to get you started.
This document begins by describing a simple one-table management application. It walks through the process of building the application. Then, it shows a tool -- called Bigtop -- which can be used to build the application from a relatively small configuration file. Finally, it shows how to add another table and regenerate the app via Bigtop.
Download (0.19MB)
Added: 2006-09-26 License: Perl Artistic License Price:
1123 downloads
Games::ScottAdams::Tutorial 0.04
Games::ScottAdams::Tutorial is a Perl module with the Scott Adams Adventure Compiler Tutorial. more>>
Games::ScottAdams::Tutorial is a Perl module with the Scott Adams Adventure Compiler Tutorial.
INTRODUCTION
This document walks you through the process of creating a small but complete and playable game with six rooms, seven items including a single treasure, and a couple of puzzles.
It makes no attempt to be complete: you need the reference manual for that. But by the time youve worked your way through this tutorial you should be familiar with rooms, items, actions and occurrences, and youll be ready to start writing your own games.
<<lessINTRODUCTION
This document walks you through the process of creating a small but complete and playable game with six rooms, seven items including a single treasure, and a couple of puzzles.
It makes no attempt to be complete: you need the reference manual for that. But by the time youve worked your way through this tutorial you should be familiar with rooms, items, actions and occurrences, and youll be ready to start writing your own games.
Download (0.048MB)
Added: 2007-01-04 License: Perl Artistic License Price:
1028 downloads
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