Free protection class software for linux

Exception::Class is a Perl module that allows you to declare real exception classes in Perl.

SYNOPSIS

use Exception::Class
( MyException,

AnotherException =>
{ isa => MyException },

YetAnotherException =>
{ isa => AnotherException,
description => These exceptions are related to IPC },

ExceptionWithFields =>
{ isa => YetAnotherException,
fields => [ grandiosity, quixotic ],
alias => throw_fields,
},
);

# try
eval { MyException->throw( error => I feel funny. ) };

my $e;
# catch
if ( $e = Exception::Class->caught(MyException) )
{
warn $e->error, "n", $e->trace->as_string, "n";
warn join , $e->euid, $e->egid, $e->uid, $e->gid, $e->pid, $e->time;

exit;
}
elsif ( $e = Exception::Class->caught(ExceptionWithFields) )
{
$e->quixotic ? do_something_wacky() : do_something_sane();
}
else
{
$e = Exception::Class->caught();
ref $e ? $e->rethrow : die $e;
}

# use an alias - without parens subroutine name is checked at
# compile time
throw_fields error => "No strawberry", grandiosity => "quite a bit";

Exception::Class allows you to declare exception hierarchies in your modules in a "Java-esque" manner.

It features a simple interface allowing programmers to declare exception classes at compile time. It also has a base exception class, Exception::Class::Base, that can be easily extended.

It is designed to make structured exception handling simpler and better by encouraging people to use hierarchies of exceptions in their applications, as opposed to a single catch-all exception class.

This module does not implement any try/catch syntax. Please see the "OTHER EXCEPTION MODULES (try/catch syntax)" section for more information on how to get this syntax.

Calendario Class provides a PHP class that is useful for creating calendars and organizers.
Calendario Class is a PHP class that helps you to create calendar and organizers.
Its highly configurable, letting you choose how many days are in a week, when a week starts, the details of the HTML output, and so on.
It also knows about holidays.
Enhancements:
- Added holidays functionality

Exception::Class::TryCatch is a syntactic try/catch sugar for use with Exception::Class.

SYNOPSIS

use Exception::Class::TryCatch;

# simple usage of catch()

eval { Exception::Class::Base->throw(error) };
catch my $err and warn $err->error;

# catching only certain types or else rethrowing

eval { Exception::Class::Base::SubClass->throw(error) };
catch( my $err, [Exception::Class::Base, Other::Exception] )
and warn $err->error;

# catching and handling different types of errors

eval { Exception::Class::Base->throw(error) };
if ( catch my $err ) {
$err->isa(this) and do { handle_this($err) };
$err->isa(that) and do { handle_that($err) };
}

# use "try eval" to push exceptions onto a stack to catch later

try eval {
Exception::Class::Base->throw(error)
};
do {
# cleanup that might use "try/catch" again
};
catch my $err; # catches a matching "try"

Exception::Class::TryCatch provides syntactic sugar for use with Exception::Class using the familiar keywords try and catch. Its primary objective is to allow users to avoid dealing directly with $@ by ensuring that any exceptions caught in an eval are captured as Exception::Class objects, whether they were thrown objects to begin with or whether the error resulted from die. This means that users may immediately use isa and various Exception::Class methods to process the exception.

In addition, this module provides for a method to push errors onto a hidden error stack immediately after an eval so that cleanup code or other error handling may also call eval without the original error in $@ being lost.

Inspiration for this module is due in part to Dave Rolskys article "Exception Handling in Perl With Exception::Class" in The Perl Journal (Rolsky 2004).

The try/catch syntax used in this module does not use code reference prototypes the way the Error.pm module does, but simply provides some helpful functionality when used in combination with eval. As a result, it avoids the complexity and dangers involving nested closures and memory leaks inherent in Error.pm (Perrin 2003).
Rolsky (2004) notes that these memory leaks may not occur in recent versions of Perl, but the approach used in Exception::Class::TryCatch should be safe for all versions of Perl as it leaves all code execution to the eval in the current scope, avoiding closures altogether.

Validate_fields Class is an easy-to-use form field validation PHP script. This class can be used to validate database inputs or mail forms.
It can validate simple text, numbers, dates, urls, email addresses, and the presence of HTML tags. Invalid form fields will be reported inside a detailed error message.
Enhancements:
- A small improvement in the create_msg() method makes it possible to switch between the XHTML version and the simple HTML version.
- In the fields array one key was named "name", and it has been renamed to "value" to make it more clear.
- The variable declarations at the beginning of the validation method was removed.
- Because the value of a checkbox (radio) type field is only available if the element is checked, there are new functions to validate this elements.

Object::Relation::Meta::Class::Schema is a Perl module for Object::Relation database store builder.

This module is provides metadata for all Object::Relation classes while building a storage schema. Loading Object::Relation::Schema causes it to be used instead of Object::Relation::Meta::Class. This is so that extra metadata methods are available that are useful in constructing the schema, but are not otherwise useful when an application is actually in use.

At this point, those attributes tend to be database-specific. Once other types of data stores are added (XML, LDAP, etc.), other attributes may be added to allow their schemas to be built, as well.

PHP HTML Graph Class is a class for drawing vertical bar graphs using only HTML and CSS. Simple and grouped bars can be created. You can change everything regarding the looks as the output is template-driven.
On the fly, you can change the size of graph, the color of all or individual bars, add labels, a title, and footnotes, or customize the CSS style of all elements. The width and height of bars can be specified in pixels or percentages. The code is heavily documented.
Enhancements:
- In some PHP versions, there were some issues regarding passing variables by reference.
- The class would produce no output (nor errors) in PHP versions lower than 5 due to the different implementations of PHPs get_class() function in these versions.

dtRdr::Traits::Class is a Perl module with shared OO stuff.

Methods to Break Things

NOT_IMPLEMENTED

Imported into base class. Gives a nicer message than the standard "Cant locate method...", indicating that you did not typo the method name, but instead forgot to override it.

sub virtual_method {my $self = shift; $self->NOT_IMPLEMENTED(@_);}

Is the shorter, less readable version worthwhile?

sub virtual_method { $_[0]->NOT_IMPLEMENTED(@_[1..$#_]);}

This should be safe for subclasses to override and/or call as ->SUPER::. This gives you something like an AUTOLOAD (though you would have to get (caller(1))[3] yourself) without having to also do can(), but thats untested...

WARN_NOT_IMPLEMENTED

Same as NOT_IMPLEMENTED(), but just a warning. Returns undef.

$self->WARN_NOT_IMPLEMENTED;

Class Hopping

claim

Assumes a hash-based object. Creates a copy (with only one level of dereference) and blesses it into Package.

$object = Package->claim($object);

Cgiapp.class.php is a port of CGI::Application to PHP. Cgiapp.class.php utilizes Smarty as its default templating engine, much as CGI::Application uses HTML::Template, due to its prevalence and acceptance in the PHP community.

Due to PHPs built-in session support, it also adds two methods, s_param() and s_delete(), to handle session parameters.

A number of static methods have also been included to facilitate error handling and array/hash conversion.