Intermediate Perl 5 Programming
Course
In London
Description
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Type
Course
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Location
London
Having gained basic knowledge of Perl, this course will take you to the next level. To understand what Perl contexts really mean, rather than just accepting them, and to write most expressive code. The power of Perl file handling is extended, together with a look at low-level file IO interfaces.
Facilities
Location
Start date
Start date
Reviews
Subjects
- IT
- Perl
- Programming
Course programme
- Course objectives
- Perl documentation
- Interpreter environment
- Running a perl script
- Anatomy of a perl script
- Perl variables
- Some short-cut operators
- Lexical variables (1)
- Controlling the interpreter - Pragmas
- Always use strictures
- Perl 5.10 - use feature
- Lexical variables (2)
- Lexical pragmas
- Perl debugging
- Reminder: variable definitions
- Defined and undefined scalars
- Undefining arrays and hashes
- Predefined variables
- Some useful literal constants
- The DATA file handle
- Here documents
- Arrays and lists
- Comma operator
- Array slices
- $#array magic
- Remember hashes?
- Hash slices
- The joy of x
- Context and type conversions
- Revision - basic conditionals
- Revision - Boolean and logical operators
- Revision - what is truth?
- Smart match operator ~~
- Smart match operator is smart
- Short circuit operators
- Labels and loop jump statements
- The sad case of switch/case
- A kind-of case statement
- Pre-5.8 use of labels and last
- Switch / case statement (5.8)
- The given statement - 5.9 or later
- Loop jump statements: continue
- Advanced for loops
- In-line conditional operator
- Defined-Or Operator // (5.10)
- File condition functions
- Evaluating file conditions
- What are references?
- Uses of references
- Creating references
- Using references
- Dereferencing array and hash references
- Using references
- Examining references
- Complex data structures
- Data::Dumper
- Reference counting
- Calling a subroutine
- Subroutine return values
- Subroutine return values - context
- Subroutine arguments
- Named and default parameters
- Parameter passing - by value?
- Parameter passing - by reference?
- Parameter passing - by magic
- Explicit pass by reference
- Subroutine prototypes
- Prototype syntax
- Prototypes - automatic call by reference
- References to subroutines
- Closures
- Subroutine as an lvalue
- Sorting
- Revision - array and list functions
- List functions: reverse, sort, grep, map
- The sort function
- Custom sort order
- Avoiding sort
- Sorting hashes
- map
- grep
- File handles
- New file handles
- Scalar variables with handles
- The magic variable $/
- The 'flip-flop' operator
- Formatted output - printf
- Changing the default output handle
- Alternative IO functions
- File::Find
- The Perl IO model
- Using sysopen
- Reading and writing files
- Random access
- Regular Expressions in Perl
- Review: Perl RE meta-characters
- Regular expression quoting
- Modifiers for regular expressions
- Review of side-effect variables
- Back-references
- More capturing groups
- Non-capturing groups
- Other capturing variables
- Named captures (5.10)
- Minimal matches
- Multi-line matches
- Alternatives to ^ and $
- Global matches
- Global match progress
- Comments in Regular Expressions
- Substitution with interpolation
- Look-around assertions
- Substitution using expressions
- Splitting into modules
- Using modules
- The library directories
- Using subroutines from modules
- Writing modules: structure of a module
- Namespaces
- Using modules without symbol export
- Example of unconditional export
- Example of on-demand export
- Symbol export using tags
- BEGIN and END blocks
- Order of BEGIN and END blocks
- Attaching a module with require
- Standard modules
- Adding modules
- Other ways of getting modules
- Warnings and diagnostics
- Controlling warnings
- Error handling
- Errno module
- Error handling - Carp
- Dealing with undef
- eval
- eval syntax
- Error trapping using eval
- Dying with a reference
- Signal handling in Perl
- Alternative signal handling
- Sending signals
- Timing out - alarm
- Fake signals
- warn and carp
- Processing the warn and die signals
- Errors in child processes
- Review of Object Oriented Programming
- Object-Oriented terminology
- OO features in Perl
- Basic object usage
- Objects are references
- Implementing objects
- Accessing object fields
- Constructors
- Implementing object methods - details
- Method calls
- Destructors
- Method inheritance
- The parent pragma - 5.10.1 or later
- Inheriting constructors
- To OO, or not to OO?
- Perl and databases
- The tie interface
- Tie-ing a hash to a GDBM file
- DBI and DBD
- DBI objects and methods
- Connect and disconnect
- Driver issues with MS SQL Server
- Options for connect
- Life cycle of a statement
- Placeholders
- Reading information
- Fetching database meta-data
- Repeated statement execution
- Other database handle methods
- Database capabilities
- Manual transaction control
- Error handling
- Calling a stored procedure
- Other DBI drivers
- Yet more DBI drivers
- Networking concepts: layers and sockets
- Sockets are file handles
- A basic client
- A basic server
- Network modules: FTP client
- Network modules: web client
- Network modules: sending mail
- Program generated web pages
- Secure Perl - taint mode
- Running a CGI script
- Using HTML from Perl
- A simple CGI script
- CGI.pm basic functions
- Form handling using CGI.pm
- Templates
- Frameworks
Intermediate Perl 5 Programming