Programming Perl. Unmatched power for text processing and scripting. 4th Edition
- Autorzy:
- Tom Christiansen, brian d foy, Larry Wall
- Ocena:
- Bądź pierwszym, który oceni tę książkę
- Stron:
- 1184
- Dostępne formaty:
-
ePubMobi
Opis ebooka: Programming Perl. Unmatched power for text processing and scripting. 4th Edition
Adopted as the undisputed Perl bible soon after the first edition appeared in 1991, Programming Perl is still the go-to guide for this highly practical language. Perl began life as a super-fueled text processing utility, but quickly evolved into a general purpose programming language that’s helped hundreds of thousands of programmers, system administrators, and enthusiasts, like you, get your job done.
In this much-anticipated update to "the Camel," three renowned Perl authors cover the language up to its current version, Perl 5.14, with a preview of features in the upcoming 5.16. In a world where Unicode is increasingly essential for text processing, Perl offers the best and least painful support of any major language, smoothly integrating Unicode everywhere—including in Perl’s most popular feature: regular expressions.
Important features covered by this update include:
- New keywords and syntax
- I/O layers and encodings
- New backslash escapes
- Unicode 6.0
- Unicode grapheme clusters and properties
- Named captures in regexes
- Recursive and grammatical patterns
- Expanded coverage of CPAN
- Current best practices
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Szczegóły ebooka
- ISBN Ebooka:
- 978-14-493-2146-8, 9781449321468
- Data wydania ebooka:
- 2012-02-17 Data wydania ebooka często jest dniem wprowadzenia tytułu do sprzedaży i może nie być równoznaczna z datą wydania książki papierowej. Dodatkowe informacje możesz znaleźć w darmowym fragmencie. Jeśli masz wątpliwości skontaktuj się z nami sklep@ebookpoint.pl.
- Język publikacji:
- angielski
- Rozmiar pliku ePub:
- 18.0MB
- Rozmiar pliku Mobi:
- 40.3MB
Spis treści ebooka
- Programming Perl
- A Note Regarding Supplemental Files
- Preface
- The Pursuit of Happiness
- Whats New in This Edition
- The Standard Distribution
- Online Documentation
- Navigating the Standard Manpages
- Non-Perl Manpages
- Offline Documentation
- Additional Resources
- Perl on the Web
- Bug Reports
- Conventions Used in This Book
- Using Code Examples
- Acknowledgments
- Safari Books Online
- Wed Like to Hear from You
- I. Overview
- 1. An Overview of Perl
- Getting Started
- Natural and Artificial Languages
- Variable Syntax
- Singularities
- Pluralities
- Arrays
- Hashes
- Complexities
- Simplicities
- Variable Syntax
- Verbs
- 1. An Overview of Perl
- An Average Example
- How to Do It
- Filehandles
- Operators
- Some Binary Arithmetic Operators
- String Operators
- Assignment Operators
- Unary Arithmetic Operators
- Logical Operators
- Some Numeric and String Comparison Operators
- Some File Test Operators
- Control Structures
- What Is Truth?
- The if and unless statements
- What Is Truth?
- The given and when Statements
- Looping Constructs
- Conditional loops
- The three-part loop
- The foreach loop
- Breaking out: next and last
- Regular Expressions
- Quantifiers
- Minimal Matching
- Nailing Things Down
- Backreferences
- List Processing
- What You Dont Know Wont Hurt You (Much)
- II. The Gory Details
- 2. Bits and Pieces
- Atoms
- Molecules
- Built-in Data Types
- Variables
- Names
- Name Lookups
- Scalar Values
- Numeric Literals
- String Literals
- Pick Your Own Quotes
- Or Leave Out the Quotes Entirely
- Interpolating Array Values
- Here Documents
- Version Literals
- Other Literal Tokens
- 2. Bits and Pieces
- Context
- Scalar and List Context
- Boolean Context
- Void Context
- Interpolative Context
- List Values and Arrays
- List Assignment
- Array Length
- Hashes
- Typeglobs and Filehandles
- Input Operators
- Command Input (Backtick) Operator
- Line Input (Angle) Operator
- Filename Globbing Operator
- 3. Unary and Binary Operators
- Terms and List Operators (Leftward)
- The Arrow Operator
- Autoincrement and Autodecrement
- Exponentiation
- Ideographic Unary Operators
- Binding Operators
- Multiplicative Operators
- Additive Operators
- Shift Operators
- Named Unary and File Test Operators
- Relational Operators
- Equality Operators
- Smartmatch Operator
- Smartmatching of Objects
- Bitwise Operators
- C-Style Logical (Short-Circuit) Operators
- Range Operators
- Conditional Operator
- Assignment Operators
- Comma Operators
- List Operators (Rightward)
- Logical and, or, not, and xor
- C Operators Missing from Perl
- 4. Statements and Declarations
- Simple Statements
- Compound Statements
- if and unless Statements
- The given Statement
- The when Statement and Modifier
- Loop Statements
- while and until Statements
- Three-Part Loops
- foreach Loops
- Loop Control
- Bare Blocks as Loops
- Loopy Topicalizers
- The goto Operator
- Paleolithic Perl Case Structures
- The Ellipsis Statement
- Global Declarations
- Scoped Declarations
- Scoped Variable Declarations
- Lexically Scoped Variables: my
- Persistent Lexically Scoped Variables: state
- Lexically Scoped Global Declarations: our
- Dynamically Scoped Variables: local
- Pragmas
- Controlling Warnings
- Controlling the Use of Globals
- 5. Pattern Matching
- The Regular Expression Bestiary
- Pattern-Matching Operators
- Pattern Modifiers
- The m// Operator (Matching)
- The s/// Operator (Substitution)
- Modifying strings en passant
- Modifying arrays en masse
- When a global substitution just isnt global enough
- The tr/// Operator (Transliteration)
- Metacharacters and Metasymbols
- Metasymbol Tables
- Specific Characters
- Wildcard Metasymbols
- Character Classes
- Bracketed Character Classes
- Classic Perl Character Class Shortcuts
- Character Properties
- POSIX-Style Character Classes
- Quantifiers
- Positions
- Beginnings: The \A and ^ Assertions
- Endings: The \z, \Z, and $ Assertions
- Boundaries: The \b and \B Assertions
- Progressive Matching
- Where You Left Off: The \G Assertion
- Grouping and Capturing
- Capturing
- Named capture groups
- Capturing
- Grouping Without Capturing
- Scoped Pattern Modifiers
- Alternation
- Staying in Control
- Letting Perl Do the Work
- Variable Interpolation
- When backslashes happen
- The qr/PATTERN/modifiers quote regex operator
- The Regex Compiler
- The Little Engine That /Could(nt)?/
- Fancy Patterns
- Lookaround Assertions
- Possessive Groups
- Programmatic Patterns
- Generated patterns
- Substitution evaluations
- Match-time code evaluation
- Match-time pattern interpolation
- Conditional interpolation
- Recursive Patterns
- Grammatical Patterns
- Grammars
- Defining Your Own Assertions
- Alternate Engines
- 6. Unicode
- Show, Dont Tell
- Getting at Unicode Data
- The Encode Module
- A Case of Mistaken Identity
- Graphemes and Normalization
- Comparing and Sorting Unicode Text
- Using the uca with Perls sort
- Locale Sorting
- More Goodies
- Custom Regex Boundaries
- Building Character
- References
- 7. Subroutines
- Syntax
- Semantics
- Tricks with Parameter Lists
- Error Indications
- Scoping Issues
- Passing References
- Prototypes
- Inlining Constant Functions
- Care with Prototypes
- Prototypes of Built-in Functions
- Subroutine Attributes
- The method Attribute
- The lvalue Attribute
- 8. References
- What Is a Reference?
- Creating References
- The Backslash Operator
- Anonymous Data
- The anonymous array composer
- The anonymous hash composer
- The anonymous subroutine composer
- Object Constructors
- Handle References
- Symbol Table References
- Implicit Creation of References
- Using Hard References
- Using a Variable As a Variable Name
- Using a block As a Variable Name
- Using the Arrow Operator
- Using Object Methods
- Pseudohashes
- Other Tricks You Can Do with Hard References
- Closures
- Closures as function templates
- Nested subroutines
- Symbolic References
- Braces, Brackets, and Quoting
- References Dont Work As Hash Keys
- Garbage Collection, Circular References, and Weak References
- 9. Data Structures
- Arrays of Arrays
- Creating and Accessing a Two-Dimensional Array
- Growing Your Own
- Access and Printing
- Slices
- Common Mistakes
- Arrays of Arrays
- Hashes of Arrays
- Composition of a Hash of Arrays
- Generation of a Hash of Arrays
- Access and Printing of a Hash of Arrays
- Arrays of Hashes
- Composition of an Array of Hashes
- Generation of an Array of Hashes
- Access and Printing of an Array of Hashes
- Hashes of Hashes
- Composition of a Hash of Hashes
- Generation of a Hash of Hashes
- Access and Printing of a Hash of Hashes
- Hashes of Functions
- More Elaborate Records
- Composition, Access, and Printing of More Elaborate Records
- Composition, Access, and Printing of Even More Elaborate Records
- Generation of a Hash of Complex Records
- Saving Data Structures
- 10. Packages
- Symbol Tables
- Qualified Names
- The Default Package
- Changing the Package
- Autoloading
- 11. Modules
- Loading Modules
- Unloading Modules
- Creating Modules
- Naming Modules
- A Sample Module
- Module Privacy and the Exporter
- Exporting without using Exporters import method
- Version checking
- Managing unknown symbols
- Tag-handling utility functions
- Overriding Built-in Functions
- 12. Objects
- Brief Refresher on Object-Oriented Lingo
- Perls Object System
- Method Invocation
- Method Invocation Using the Arrow Operator
- Method Invocation Using Indirect Objects
- Syntactic Snafus with Indirect Objects
- Package-Quoted Classes
- Object Construction
- Inheritable Constructors
- Initializers
- Class Inheritance
- Inheritance Through @ISA
- Alternate Method Searching
- Accessing Overridden Methods
- UNIVERSAL: The Ultimate Ancestor Class
- Method Autoloading
- Private Methods
- Instance Destructors
- Garbage Collection with destroy Methods
- Managing Instance Data
- Generating Accessors with Autoloading
- Generating Accessors with Closures
- Using Closures for Private Objects
- New Tricks
- Managing Class Data
- The Moose in the Room
- Summary
- 13. Overloading
- The overload Pragma
- Overload Handlers
- Overloadable Operators
- The Copy Constructor (=)
- When an Overload Handler Is Missing (nomethod and fallback)
- Overloading Constants
- Public Overload Functions
- Inheritance and Overloading
- Runtime Overloading
- Overloading Diagnostics
- 14. Tied Variables
- Tying Scalars
- Scalar-Tying Methods
- Magical Counter Variables
- Cycling Through Values
- Magically Banishing $_
- Tying Scalars
- Tying Arrays
- Array-Tying Methods
- Notational Convenience
- Tying Hashes
- Hash-Tying Methods
- Tying Filehandles
- Filehandle-Tying Methods
- Creative Filehandles
- A Subtle Untying Trap
- Tie Modules on CPAN
- III. Perl as Technology
- 15. Interprocess Communication
- Signals
- Signalling Process Groups
- Reaping Zombies
- Timing Out Slow Operations
- Blocking Signals
- Signal Safety
- Signals
- Files
- File Locking
- Passing Filehandles
- 15. Interprocess Communication
- Pipes
- Anonymous Pipes
- Talking to Yourself
- Bidirectional Communication
- Named Pipes
- System V IPC
- Sockets
- Networking Clients
- Networking Servers
- Message Passing
- 16. Compiling
- The Life Cycle of a Perl Program
- Compiling Your Code
- Executing Your Code
- Compiler Backends
- Code Generators
- The Bytecode Generator
- The C Code Generators
- Code Development Tools
- Avant-Garde Compiler, Retro Interpreter
- 17. The Command-Line Interface
- Command Processing
- #! and Quoting on Non-Unix Systems
- Location of Perl
- Switches
- Command Processing
- Environment Variables
- 18. The Perl Debugger
- Using the Debugger
- Debugger Commands
- Stepping and Running
- Breakpoints
- Tracing
- Display
- Locating Code
- Actions and Command Execution
- Miscellaneous Commands
- Debugger Customization
- Editor Support for Debugging
- Customizing with Init Files
- Debugger Options
- Unattended Execution
- Debugger Support
- Writing Your Own Debugger
- Profiling Perl
- Devel::DProf
- Devel::NYTProf
- 19. CPAN
- History
- A Tour of the Repository
- Creating a MiniCPAN
- The CPAN Ecosystem
- PAUSE
- Searching CPAN
- Testing
- Bug Tracking
- rt.cpan.org
- Other bug tracking
- perlbug
- rt.perl.org
- Installing CPAN Modules
- By Hand
- CPAN Clients
- cpan
- cpanp
- cpanminus
- Creating CPAN Distributions
- Starting Your Distribution
- h2xs
- Distribution::Cooker
- Module::Starter
- Dist::Zilla
- Starting Your Distribution
- Testing Your Modules
- Internal testing
- External testing
- IV. Perl as Culture
- 20. Security
- Handling Insecure Data
- Detecting and Laundering Tainted Data
- Cleaning Up Your Environment
- Accessing Commands and Files Under Reduced Privileges
- Defeating Taint Checking
- Handling Insecure Data
- Handling Timing Glitches
- Unix Kernel Security Bugs
- Handling Race Conditions
- Temporary Files
- 20. Security
- Handling Insecure Code
- Changing Root
- Safe Compartments
- Restricting namespace access
- Restricting operator access
- Safe examples
- Code Masquerading As Data
- 21. Common Practices
- Common Goofs for Novices
- Universal Blunders
- Frequently Ignored Advice
- C Traps
- Shell Traps
- Python Traps
- Ruby Traps
- Java Traps
- Common Goofs for Novices
- Efficiency
- Time Efficiency
- Space Efficiency
- Programmer Efficiency
- Maintainer Efficiency
- Porter Efficiency
- User Efficiency
- Programming with Style
- Fluent Perl
- Program Generation
- Generating Other Languages in Perl
- Generating Perl in Other Languages
- Source Filters
- 22. Portable Perl
- Newlines
- Endianness and Number Width
- Files and Filesystems
- System Interaction
- Interprocess Communication (IPC)
- External Subroutines (XS)
- Standard Modules
- Dates and Times
- Internationalization
- Style
- 23. Plain Old Documentation
- Pod in a Nutshell
- Verbatim Paragraphs
- Command Paragraphs
- Flowed Text
- Pod in a Nutshell
- Pod Translators and Modules
- Writing Your Own Pod Tools
- Pod Pitfalls
- Documenting Your Perl Programs
- 24. Perl Culture
- History Made Practical
- Perl Poetry
- Virtues of the Perl Programmer
- Events
- Getting Help
- V. Reference Material
- 25. Special Names
- Special Names Grouped by Type
- Regular Expression Special Variables
- Per-Filehandle Variables
- Per-Package Special Variables
- Program-Wide Special Variables
- Per-Package Special Filehandles
- Per-Package Special Functions
- Special Names Grouped by Type
- Special Variables in Alphabetical Order
- 25. Special Names
- 26. Formats
- String Formats
- Binary Formats
- pack
- Repetition
- Other modifiers
- More examples
- pack
- unpack
- Picture Formats
- Format Variables
- Footers
- Accessing Formatting Internals
- 27. Functions
- Perl Functions by Category
- Perl Functions in Alphabetical Order
- abs
- accept
- alarm
- atan2
- bind
- binmode
- bless
- break
- caller
- chdir
- chmod
- chomp
- chop
- chown
- chr
- chroot
- close
- closedir
- connect
- continue
- cos
- crypt
- dbmclose
- dbmopen
- defined
- delete
- die
- do (block)
- do (file)
- do (subroutine)
- dump
- each
- eof
- eval
- exec
- exists
- exit
- exp
- __FILE__
- fc
- fcntl
- fileno
- flock
- fork
- format
- formline
- getc
- getgrent
- getgrgid
- getgrnam
- gethostbyaddr
- gethostbyname
- gethostent
- getlogin
- getnetbyaddr
- getnetbyname
- getnetent
- getpeername
- getpgrp
- getppid
- getpriority
- getprotobyname
- getprotobynumber
- getprotoent
- getpwent
- getpwnam
- getpwuid
- getservbyname
- getservbyport
- getservent
- getsockname
- getsockopt
- glob
- gmtime
- goto
- grep
- hex
- import
- index
- int
- ioctl
- join
- keys
- kill
- last
- lc
- lcfirst
- length
- __LINE__
- link
- listen
- local
- localtime
- lock
- log
- lstat
- m//
- map
- mkdir
- msgctl
- msgget
- msgrcv
- msgsnd
- my
- new
- next
- no
- oct
- open
- opendir
- ord
- our
- pack
- package
- __PACKAGE__
- pipe
- pop
- pos
- printf
- prototype
- push
- q/STRING/
- quotemeta
- rand
- read
- readdir
- readline
- readlink
- readpipe
- recv
- redo
- ref
- rename
- require
- reset
- return
- reverse
- rewinddir
- rindex
- rmdir
- s///
- say
- scalar
- seek
- seekdir
- select (output filehandle)
- select (ready file descriptors)
- semctl
- semget
- semop
- send
- setpgrp
- setpriority
- setsockopt
- shift
- shmctl
- shmget
- shmread
- shmwrite
- shutdown
- sin
- sleep
- socket
- socketpair
- sort
- splice
- split
- sprintf
- sqrt
- srand
- stat
- state
- study
- sub
- substr
- symlink
- syscall
- sysopen
- sysread
- sysseek
- system
- syswrite
- tell
- telldir
- tie
- tied
- time
- times
- tr///
- truncate
- uc
- ucfirst
- umask
- undef
- unlink
- unpack
- unshift
- untie
- use
- utime
- values
- vec
- wait
- waitpid
- wantarray
- warn
- write
- y//
- 28. The Standard Perl Library
- Library Science
- A Tour of the Perl Library
- Roll Call
- The Future of the Standard Perl Library
- Wandering the Stacks
- 29. Pragmatic Modules
- attributes
- autodie
- autouse
- base
- bigint
- bignum
- bigrat
- blib
- bytes
- charnames
- Custom Character Names
- Runtime Lookups
- constant
- Restrictions on constant
- deprecate
- diagnostics
- encoding
- feature
- fields
- filetest
- if
- inc::latest
- integer
- less
- lib
- locale
- mro
- open
- ops
- overload
- overloading
- parent
- re
- sigtrap
- Signal Handlers
- Predefined Signal Lists
- Other Arguments to sigtrap
- Examples of sigtrap
- sort
- strict
- strict refs
- strict vars
- strict subs
- subs
- threads
- utf8
- vars
- version
- vmsish
- exit
- hushed
- status
- time
- warnings
- User-Defined Pragmas
- Glossary
- Index of Perl Modules in This Book
- Index
- About the Authors
- Colophon
- Copyright
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