This note explains the
following topics: Perl program structure, Variable types, Scalars , Pragmas ,
Operators , Arrays , Hashes , Control structures, Loop modifers, Subroutines ,
Reading and Writing a file, Filehandles , Regular expressions, Regex anchors and
operators, Running perl, POD tools, What is Bioperl, Gotchas , Objects in Perl,
Interfaces and Inheritance in Bioperl, Bioperl components, Parse a sequence from
file, output, Read in sequence and write out in different format, Sequence
Databases.
Perl is an immensely popular
scripting language that combines the best features of C, key UNIX utilities and
a powerful use of regular expressions. This book promotes the use of Perl as a
programming language, encouraging the creation of legible and sensible programs
so as to dispel the image of Perl as a confusing and obscure language.
This note explains the
following topics: Perl program structure, Variable types, Scalars , Pragmas ,
Operators , Arrays , Hashes , Control structures, Loop modifers, Subroutines ,
Reading and Writing a file, Filehandles , Regular expressions, Regex anchors and
operators, Running perl, POD tools, What is Bioperl, Gotchas , Objects in Perl,
Interfaces and Inheritance in Bioperl, Bioperl components, Parse a sequence from
file, output, Read in sequence and write out in different format, Sequence
Databases.
Web Client Programming
with Perl is a behind-the-scenes look at how your web browser interacts with web
servers. Readers of this book will learn how the Web works and how to write
software that is more flexible, dynamic, and powerful than the typical web
browser.
This note provides a detailed explanation of the following topics in
Perl: Introduction to Perl, Numeric and String Literals, Variables, Arrays,
Operators, Perl Statements, Functions, References, Files -- Input and Output in
Perl, Regular Expressions, Special Variables, Handling Errors and Signals,
Objects in Perl, Perl Modules, Debugging Perl, Networking with Perl, CGI
Programming in Perl, CGI Scripts, Using Perl with Web Servers.
This book covers the following
topics: Parts of the Interpreter, Internal Variables, The Lexer and the Parser,
Fundamental operations, The Runtime Environment, The Perl Compiler, Hacking on
perl and Perl 6 Internals.