Perl Training in Bangalore

Perl Training Overview

Perl training teaches Perl developers the skills they need to fully utilize object-oriented features, interact with databases, use Perl/Tk, extend Perl with C/C++, and write their own Perl modules.

Perl Training Objectives

• Debug Perl applications using a variety of tools
• Manipulate lists
• Create packages
• Utilize Perl’s object-oriented features and write their own classes
• Install and use Perl modules
• Integrate Perl scripts with databases using the DBI module
• Explore the fundamentals of Perl/Tk programming
• Extend Perl with C/C++
• Develop their own Perl modules
• Perl Training Content

Review of Packages

• BEGIN and END Blocks
• Symbol Tables
• Package Variables
• Calling Package Subroutines
• Importing Package Symbols
• Exporting Package Symbols
• Using the Exporter Package
• The use Function
• AUTOLOAD and @ISA
• AutoLoader and SelfLoader
• Objects and Classes

Object-Oriented Stuff

• Making Perl Object-Oriented
• References
• The bless Function
• So, What’s a Blessed Thing Good For?
• Calling Class and Object Methods
• Object Methods
• Writing Classes
• Constructors
• Inheritance
• What Perl Doesn’t Do
• Tied Variables

Debugging

• Warnings
• Diagnostic Messages
• Carping, Confessing, and Croaking
• Strict Checks
• Compiler Pragmas
• Debugging Flags
• Your Perl Configuration
• The Devel::Peek Module
• The Data::Dumper Module

Why Use tie?

• Tying a Scalar
• Inside Tied Variables
• untie
• Tying an Array
• Tying Hashes
• Tie::Hash and Tie::Array
• Tying Filehandles
• What Are DBM, NDBM, GDBM, SDBM, etc?
• Using the DBM Modules
• Installing and Using Perl Modules
• Laziness, Impatience, and Hubris
• CPAN
• Using Modules
• Installing a Perl Module

Unpacking the Module Source

• The Configuration Step
• The Build Step
• The Test Step
• The Install Step
• Using CPAN.pm
• Using Module Documentation
• Introduction to DBI/DBD

Expert List Manipulation

• The grep Operator
• Lists, Arrays, and List Operators
• Context
• Context and Subroutines
• Initializing Arrays and Hashes
• Reference Syntax
• Auto-vivification
• Defined Values
• Other List Operators

Usage of map, grep, and foreach

• Blocks and Code References
• Blocks
• Subroutines
• Subroutine Prototypes
• Code Refs and Anonymous Subroutines
• Typeglobbing for the Non-Squeamish
• Local (Dynamic) Variables
• Lexical Variables

Persistent Private Subroutine Variables

• Closures
• The eval Operator
• The Block Form of eval
• The String Form of eval
• Block Form of eval for Exception Handling

The Old Way – DBPerls

• A Better Way – DBI/DBD
• Database Programming
• Handles
• Connecting to the Database
• Creating a SQL Query
• Getting the Results
• Updating Database Data
• Transaction Management
• Finishing Up
• DBI/DBD SQL Programming

Error Checking in DBI

• Getting Connected
• Drivers
• Using Parameterized Statements
• Statement Handle Attributes
• Other Handle Attributes
• Column Binding
• The do Method
• BLOBs and LONGs and Such
• Installing DBI Drivers

Introduction to Perl/Tk

• Tcl, Tk, Tcl/Tk, Tkperl, Perl/Tk, etc.
• Perl/Tk
• Creating a Perl/Tk Application
• GUI Programming Overview
• Adding Widgets
• Scrolled Widgets
• Configuring Widgets
• Menus
• More Fun with Menus
• Using FileSelect

Perl/Tk Programming

• Tk::Error and Tk::ErrorDialog
• Configuring Widgets
• Geometry Management
• Geometry Management with grid()
• The Frame Widget
• Defining Widget Callbacks
• Bindings
• Nonblocking I/O with fileevent()
• Tags
• Other Widgets
• Other Tk Commands
• Getting Tk
• Extending Perl with C/C++

Extending the Perl Interpreter

• Overview of Perl5 XSUBs
• Get Started with h2xs
• Set up the Perl Wrapper Class
• Write the XS Code
• The XS File
• Write Some Test Code
• What Do You Want?
• Returning Values on the Stack
• A Walk Through an XSUB
• Arguments to XSUBs
• Other h2xs Options
• Embedding the Perl Interpreter
• Why Embed Perl?

Embedding Perl in a C Program

• Compiling the Program
• perlmain.c
• Perl Data Types
• Macros and Functions
• Manipulating Scalars
• Memory Management
• Script Space
• Evaluating Perl Expressions
• Dynamic Loading
• Multiple Perl Interpreters

Module Development and Distribution

• Distributing Modules
• Get Started with h2xs
• Files Created by h2xs
• The Build Library (blib) ulectory
• Unit Testing and test.pl
• Versions
• Using blib
• POD
• POD Translators
• Cutting a Distribution
• Other Niceties
• Makefile.PL

Design and Implementation

• Think First
• Object-Oriented Design
• Object-Oriented Development
• Library Modules
• Utility Programs
• Filters
• Performance
• Timing with Benchmark
• Conclusion