Regular Expressions Cookbook

Preface

1. Introduction to Regular Expressions
-Regular Expressions Defined
-Search and Replace with Regular Expressions
-Tools for Working with Regular Expressions

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, Categories, 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

3. Programming with Regular Expressions
-Programming Languages and Regex Flavors
-Literal Regular Expressions in Source Code
-Import the Regular Expression Library
-Create Regular Expression Objects
-Set Regular Expression Options
-Test If 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
-Construct a Parser

4. Validation and Formatting
-Validate Email Addresses
-Validate and Format North American Phone Numbers
-Validate International Phone Numbers
-Validate Traditional Date Formats
-Validate Traditional Date Formats, Excluding Invalid Dates
-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 Password Complexity
-Validate Credit Card Numbers
-European VAT Numbers

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

6. Numbers
-Integer Numbers
-Hexadecimal Numbers
-Binary Numbers
-Octal Numbers
-Decimal Numbers
-Strip Leading Zeros
-Numbers Within a Certain Range
-Hexadecimal Numbers Within a Certain Range
-Integer Numbers with Separators
-Floating-Point Numbers
-Numbers with Thousand Separators
-Add Thousand Separators to Numbers
-Roman Numerals

7. Source Code and Log Files
-Keywords
-Identifiers
-Numeric Constants
-Operators
-Single-Line Comments
-Multiline Comments
-All Comments
-Strings
-Strings with Escapes
-Regex Literals
-Here Documents
-Common Log Format
-Combined Log Format
-Broken Links Reported in Web Logs

8. 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

9. Markup and Data Formats
-Processing Markup and Data Formats with Regular Expressions
-Find XML-Style Tags
-Replace Tags with <strong>
-Remove All XML-Style Tags Except and <strong>
-Match XML Names
-Convert Plain Text to HTML by Adding <p> and <br> Tags
-Decode XML Entities
-Find a Specific Attribute in XML-Style Tags
-Add a cellspacing Attribute to <table> 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

Index