Regular Expressions Cookbook - Levithan, Steven

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Take the guesswork out of using regular expressions. With more than 140 practical recipes, this cookbook provides everything you need to solve a wide range of real-world problems. Novices will learn basic skills and tools, and programmers and experienced users will find a wealth of detail. Each recipe provides samples you can use right away. This revised edition covers the regular expression flavors used by C#, Java, JavaScript, Perl, PHP, Python, Ruby, and VB.NET. You’ll learn powerful new tricks, avoid flavor-specific gotchas, and save valuable time with this huge library of practical…mehr

Produktbeschreibung
Take the guesswork out of using regular expressions. With more than 140 practical recipes, this cookbook provides everything you need to solve a wide range of real-world problems. Novices will learn basic skills and tools, and programmers and experienced users will find a wealth of detail. Each recipe provides samples you can use right away. This revised edition covers the regular expression flavors used by C#, Java, JavaScript, Perl, PHP, Python, Ruby, and VB.NET. You’ll learn powerful new tricks, avoid flavor-specific gotchas, and save valuable time with this huge library of practical solutions. * Learn regular expressions basics through a detailed tutorial * Use code listings to implement regular expressions with your language of choice * Understand how regular expressions differ from language to language * Handle common user input with recipes for validation and formatting * Find and manipulate words, special characters, and lines of text * Detect integers, floating-point numbers, and other numerical formats * Parse source code and process log files * Use regular expressions in URLs, paths, and IP addresses * Manipulate HTML, XML, and data exchange formats * Discover little-known regular expression tricks and techniques
  • Produktdetails
  • Verlag: O'Reilly Media, Inc, USA / O'Reilly Media, Inc.
  • 2 Revised edition
  • Seitenzahl: 520
  • Erscheinungstermin: 28. August 2012
  • Englisch
  • Abmessung: 233mm x 179mm x 33mm
  • Gewicht: 1086g
  • ISBN-13: 9781449319434
  • ISBN-10: 1449319432
  • Artikelnr.: 35685905
Autorenporträt
Jan Goyvaerts runs Just Great Software, where he designs and develops some of the most popular regular expression software. His products include RegexBuddy, the world's only regular expression editor that emulates the peculiarities of 15 regular expression flavors, and PowerGREP, the most feature-rich grep tool for Microsoft Windows.
Inhaltsangabe
Inhaltsverzeichnis

Chapter 1 Introduction to Regular Expressions

Regular Expressions Defined

Searching and Replacing with Regular Expressions

Tools for Working with Regular Expressions

Chapter 2 Basic Regular Expression Skills

Match Literal Text

Match Nonprintable Characters

Match One of Many Characters

Match Any Character

Match Something at the Start and/or the End of a Line

Match Whole Words

Unicode Code Points, Properties, Blocks, and Scripts

Match One of Several Alternatives

Group and Capture Parts of the Match

Match Previously Matched Text Again

Capture and Name Parts of the Match

Repeat Part of the Regex a Certain Number of Times

Choose Minimal or Maximal Repetition

Eliminate Needless Backtracking

Prevent Runaway Repetition

Test for a Match Without Adding It to the Overall Match

Match One of Two Alternatives Based on a Condition

Add Comments to a Regular Expression

Insert Literal Text into the Replacement Text

Insert the Regex Match into the Replacement Text

Insert Part of the Regex Match into the Replacement Text

Insert Match Context into the Replacement Text

Chapter 3 Programming with Regular Expressions

Programming Languages and Regex Flavors

Literal Regular Expressions in Source Code

Import the Regular Expression Library

Creating Regular Expression Objects

Setting Regular Expression Options

Test Whether a Match Can Be Found Within a Subject String

Test Whether a Regex Matches the Subject String Entirely

Retrieve the Matched Text

Determine the Position and Length of the Match

Retrieve Part of the Matched Text

Retrieve a List of All Matches

Iterate over All Matches

Validate Matches in Procedural Code

Find a Match Within Another Match

Replace All Matches

Replace Matches Reusing Parts of the Match

Replace Matches with Replacements Generated in Code

Replace All Matches Within the Matches of Another Regex

Replace All Matches Between the Matches of Another Regex

Split a String

Split a String, Keeping the Regex Matches

Search Line by Line

Chapter 4 Validation and Formatting

Validate Email Addresses

Validate and Format North American Phone Numbers

Validate International Phone Numbers

Validate Traditional Date Formats

Accurately Validate Traditional Date Formats

Validate Traditional Time Formats

Validate ISO 8601 Dates and Times

Limit Input to Alphanumeric Characters

Limit the Length of Text

Limit the Number of Lines in Text

Validate Affirmative Responses

Validate Social Security Numbers

Validate ISBNs

Validate ZIP Codes

Validate Canadian Postal Codes

Validate U.K. Postcodes

Find Addresses with Post Office Boxes

Reformat Names From "FirstName LastName" to "LastName,

FirstName"

Validate Credit Card Numbers

European VAT Numbers

Chapter 5 Words, Lines, and Special Characters

Find a Specific Word

Find Any of Multiple Words

Find Similar Words

Find All Except a Specific Word

Find Any Word Not Followed by a Specific Word

Find Any Word Not Preceded by a Specific Word

Find Words Near Each Other

Find Repeated Words

Remove Duplicate Lines

Match Complete Lines That Contain a Word

Match Complete Lines That Do Not Contain a Word

Trim Leading and Trailing Whitespace

Replace Repeated Whitespace with a Single Space

Escape Regular Expression Metacharacters

Chapter 6 Numbers

Integer Numbers

Hexadecimal Numbers

Binary Numbers

Strip Leading Zeros

Numbers Within a Certain Range

Hexadecimal Numbers Within a Certain Range

Floating Point Numbers

Numbers with Thousand Separators

Roman Numerals

Chapter 7 URLs, Paths, and Internet Addresses

Validating URLs

Finding URLs Within Full Text

Finding Quoted URLs in Full Text

Finding URLs with Parentheses in Full Text

Turn URLs into Links

Validating URNs

Validating Generic URLs

Extracting the Scheme from a URL

Extracting the User from a URL

Extracting the Host from a URL

Extracting the Port from a URL

Extracting the Path from a URL

Extracting the Query from a URL

Extracting the Fragment from a URL

Validating Domain Names

Matching IPv4 Addresses

Matching IPv6 Addresses

Validate Windows Paths

Split Windows Paths into Their Parts

Extract the Drive Letter from a Windows Path

Extract the Server and Share from a UNC Path

Extract the Folder from a Windows Path

Extract the Filename from a Windows Path

Extract the File Extension from a Windows Path

Strip Invalid Characters from Filenames

Chapter 8 Markup and Data Interchange

Find XML-Style Tags

Replace Tags with

Remove All XML-Style Tags Except and

Match XML Names

Convert Plain Text to HTML

Find a Specific Attribute in XML-Style Tags

Add a cellspacing Attribute to Tags That Do Not

Already Include It

Remove XML-Style Comments

Find Words Within XML-Style Comments

Change the Delimiter Used in CSV Files

Extract CSV Fields from a Specific Column

Match INI Section Headers

Match INI Section Blocks

Match INI Name-Value Pairs

Colophon
Rezensionen
"[...] eines der Standard-Nachschlagewerke zum Thema Regular Expressions. Die beiden Autoren kennen ihr Handwerk. [...] [G]ehört einfach in das Bücherregal eines jeden Entwicklers." - /root/security, November 2012

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