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Using Regular Expressions
Illustration by Mark Todd

Using Regular Expressions

with Kevin Skoglund

Video: Welcome

Welcome to Using Regular Expressions! My name is Kevin Skoglund. In this course, we're going to learn how to use regular expressions to find and manipulate text. We'll start by learning the symbols and basic syntax of regular expressions, we will use character sets and repetition expressions to create flexible matching patterns, and along the way, we'll examine how the regular expression engine parses text and how it utilizes greedy and lazy strategies as it finds matches. We'll learn how to capture text and to refer back to it later by using back references, and we will discover how lookaround assertions can help us to create complex matching patterns.
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  1. 2m 18s
    1. Welcome
      56s
    2. Using the exercise files
      1m 22s
  2. 19m 55s
    1. What are regular expressions?
      3m 20s
    2. The history of regular expressions
      6m 40s
    3. Regular expression engines
      2m 44s
    4. Installing an engine
      4m 5s
    5. Notation conventions and modes
      3m 6s
  3. 21m 23s
    1. Literal characters
      6m 39s
    2. Metacharacters
      2m 1s
    3. The wildcard metacharacter
      4m 31s
    4. Escaping metacharacters
      4m 53s
    5. Other special characters
      3m 19s
  4. 31m 26s
    1. Defining a character set
      5m 49s
    2. Character ranges
      4m 49s
    3. Negative character sets
      4m 53s
    4. Metacharacters inside character sets
      5m 12s
    5. Shorthand character sets
      6m 30s
    6. POSIX bracket expressions
      4m 13s
  5. 36m 38s
    1. Repetition metacharacters
      7m 17s
    2. Quantified repetition
      6m 59s
    3. Greedy expressions
      6m 27s
    4. Lazy expressions
      6m 46s
    5. Using repetition efficiently
      9m 9s
  6. 20m 24s
    1. Grouping metacharacters
      4m 14s
    2. Alternation metacharacter
      4m 54s
    3. Writing logical and efficient alternations
      7m 33s
    4. Repeating and nesting alternations
      3m 43s
  7. 19m 19s
    1. Start and end anchors
      7m 21s
    2. Line breaks and Multiline mode
      4m 41s
    3. Word boundaries
      7m 17s
  8. 23m 33s
    1. Backreferences
      8m 57s
    2. Backreferences to optional expressions
      3m 51s
    3. Finding and replacing using backreferences
      7m 16s
    4. Non-capturing group expressions
      3m 29s
  9. 32m 31s
    1. Positive lookahead assertions
      6m 39s
    2. Double-testing with lookahead assertions
      7m 16s
    3. Negative lookahead assertions
      6m 10s
    4. Lookbehind assertions
      6m 26s
    5. The power of positions
      6m 0s
  10. 13m 13s
    1. About Unicode
      4m 19s
    2. Unicode in regular expressions
      4m 41s
    3. Unicode wildcards and properties
      4m 13s
  11. 1h 55m
    1. How to use this chapter
      5m 38s
    2. Matching names
      6m 33s
    3. Matching postal codes
      8m 54s
    4. Matching email addresses
      5m 0s
    5. Matching URLs
      8m 1s
    6. Matching decimal numbers and currency
      6m 45s
    7. Matching IP addresses
      7m 10s
    8. Matching dates
      7m 49s
    9. Matching times
      8m 59s
    10. Matching HTML tags
      8m 34s
    11. Matching passwords
      6m 49s
    12. Matching credit card numbers
      9m 36s
    13. Finding words near other words
      6m 38s
    14. Formatting with Search and Replace, pt. 1
      7m 22s
    15. Formatting with Search and Replace, pt. 2
      4m 15s
    16. Formatting with Search and Replace, pt. 3
      7m 10s
  12. 47s
    1. Goodbye
      47s

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Using Regular Expressions
5h 36m Intermediate Nov 21, 2011

Viewers: in countries Watching now:

Learn how to find and manipulate text quickly and easily using regular expressions. Author Kevin Skoglund covers the basic syntax of regular expressions, shows how to create flexible matching patterns, and demonstrates how the regular expression engine parses text to find matches. The course also covers referring back to previous matches with backreferences and creating complex matching patterns with lookaround assertions, and explores the most common applications of regular expressions.

Topics include:
  • Creating flexible patterns using character sets
  • Achieving efficiency when using repetition
  • Understanding different types of search strategies
  • Writing logical and efficient alternations
  • Capturing groups and reusing them with backreferences
  • Developing complex patterns with lookaround assertions
  • Working with Unicode and multibyte characters
  • Matching email addresses, URLs, dates, HTML tags, and credit card numbers
  • Using search and replace to format a document
Subjects:
Developer Programming Languages
Software:
Regular Expressions
Author:
Kevin Skoglund

Welcome

Welcome to Using Regular Expressions! My name is Kevin Skoglund. In this course, we're going to learn how to use regular expressions to find and manipulate text. We'll start by learning the symbols and basic syntax of regular expressions, we will use character sets and repetition expressions to create flexible matching patterns, and along the way, we'll examine how the regular expression engine parses text and how it utilizes greedy and lazy strategies as it finds matches. We'll learn how to capture text and to refer back to it later by using back references, and we will discover how lookaround assertions can help us to create complex matching patterns.

And then finally, in the last chapter, we'll explore some of the most common and most useful regular expressions by building them up step by step. Now it doesn't matter if you're a complete beginner or if you have some prior experience, we're going to cover all the fundamentals you need to write your own regular expressions. So let's get started learning about regular expressions.

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