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IN20 Perl/CGI Programming |
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| Length/Format |
2-3 days
Lecture, discussion, demos and hands-on labs
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| Description |
This course introduces the
student to the Perl5 scripting command language with
particular emphasis on its use in HTML/CGI applications.
Perl is a powerful UNIX/Win32 scripting language that blends
a C/Shell syntax with extensive RE parsing, IO facilites,
filesystem functions, process control and networking.
Fundamental topics are applicable to all Browsers and HW
platforms including Win32 and UNIX. Advanced topics may
require specific platforms and software.
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| Audience |
This course is intended for
experienced Unix/Win32 users and programmers. Familiarity
with some programming language, basic HTML coding and the
target platform (Unix/Win32) is assumed.
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| Key Topics |
INTRODUCTION AND BASIC
OPERATIONS - Overview and Features; Invoking Scripts,
Implicit/Explicit, Win32 vs Unix, Debug Mode: Variables and
NameSpaces, Expressions, Literals, Operators; Simple
Terminal I/O; Conditional Statements, if/else/elsif, Blocks,
Numeric/String Operators, Case, Conditional Stmt Execution;
Looping Constructs, while/until, Iterators, Flow Control
next/last/redo, for/each lists; ARGV Cmdline Processing,
Token Access; Examples
LIST FACILITIES & STRING PROCESSING -
Lists and Arrays, Syntax/Assign, Numeric Indexing, Access,
Manipulating Items shift/push/pop, Combining and Searching
split/join/grep, sort/reverse; Associative Arrays, Key
Processing, Extracting Data keys/values/delete, each
Iterator; ENV Variables; List References, Data Structures;
Examples
RE Patterns, SuperSet Meta haracters, Operators/Functions
m/s/tr, Grouping/Parsing; Substitution & Translation; String
Functions length/substr/index, Operators Concat/Repeat;
Examples
FILE PROCESSING & SUBROUTINES -
Open/Close Disk Files & Pipes, Modes, Errors; Reading
Variable Length Delimited Data; FileSystem Commands,
Conditional Operators, Directory Processing; Formatting
Tablular Reports; Fixed Length & Binary Data; Examples
Subroutines, Declaration & Invocation, Variable Scoping,
my/local, Parm Passing/Return Facilities; Variable & List
References, Passing Arrays; Modules & Packages, use/require;
Examples
CGI PROCESSING ESSENTIALS -
Overview, HTTP Protocol, CGI Architecture; HTML, URLs; HTML
FORM tag, Components; Script Essentials, Flushing, Headers,
MIME Types, Page Elements; CGI Environment Variables, CGI
Script I/O; Encoded QueryString, Literals, Processing;
Server-side File I/O; Examples
CGI.pm Module, Overview, Importing Sets, Calling Syntax Fcn
vs Object; Basic :HTML Functions, header/start/p/br/a/img/li;
:CGI Functions, param/url/redirect/Delete, EnvVar Retrieval;
Examples
CGI FORMS PROCESSING -
Overview, <FORM> Tag, Attributes, Element Names; Form Data
Elements Review; GET vs POST Method; Handling Form Data via
ENV Vars vs CGI.pm Functions; Static vs Dynamic Form
Generation; CGI.pm Form Display Functions, Parameter
Caching/Override; Examples
ADVANCED CGI TOPICS -
Cookies, Definition, Usage; Name/Value Specification,
Expiration Dates, Path/Domain Spec; ENV Vars vs CGI.pm
Functions; Headers, Cookie Function, Scalars & List Data;
File Uploads, Overview, FORM Elements, Encoding Type;
Server-Side Processing, Handles; SSI HTML Elements;
Identifying Client-side Browser, Compatibility, Examples;
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