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Regular Expression - Content

1. 1. Regular Expression Tutorial - Content
   • What Regular Expressions Are Exactly - Terminology
   • Different Regular Expression Engines
   • Give Regexes a First Try
2. 2. Literal Characters
   • Special Characters
   • Special Characters and Programming Languages
   • Non-Printable Characters
3. 3. First Look at How a Regex Engine Works Internally
   • The Regex-Directed Engine Always Returns the Leftmost Match
4. 4. Character Classes or Character Sets
   • Useful Applications
   • Negated Character Classes
   • Metacharacters Inside Character Classes
   • Shorthand Character Classes
   • Negated Shorthand Character Classes
   • Repeating Character Classes
   • Looking Inside The Regex Engine
5. 5. The Dot Matches (Almost) Any Character
   • Use The Dot Sparingly
   • Use Negated Character Sets Instead of the Dot
6. 6. Start of String and End of String Anchors
   • Useful Applications
   • Using ^ and $ as Start of Line and End of Line Anchors
   • Permanent Start of String and End of String Anchors
   • Zero-Length Matches
   • Strings Ending with a Line Break
   • Looking Inside the Regex Engine
   • Another Inside Look
   • Caution for Programmers
7. 7. Word Boundaries
   • Negated Word Boundary
   • Looking Inside the Regex Engine
   • Tcl Word Boundaries
8. 8. Alternation with The Vertical Bar or Pipe Symbol
   • Remember That The Regex Engine Is Eager
9. 9. Optional Items
   • Important Regex Concept: Greediness
   • Looking Inside The Regex Engine

Reference

1. Basic Syntax Reference.
   • Characters
   • Character Classes or Character Sets [abc]
   • Dot
   • Anchors
   • Word Boundaries
   • Alternation
   • Quantifiers
2. Advanced Syntax Reference.
   • Grouping and Backreferences
   • Modifiers
   • Atomic Grouping and Possessive Quantifiers
   • Lookaround
   • Continuing from The Previous Match
   • Conditionals
   • Comments
3. Unicode Syntax Reference.
   • Unicode Characters
   • Unicode Properties, Scripts and Blocks
4. Syntax Reference for Specific Regex Flavors.
   • .NET Syntax for Named Capture and Backreferences
   • Python Syntax for Named Capture and Backreferences
   • XML Character Classes
   • POSIX Bracket Expressions
5. Regular Expression Flavor Comparison.
   • Characters
   • Character Classes or Character Sets
   • Dot
   • Anchors
   • Word Boundaries
   • Alternation
   • Quantifiers
   • Grouping and Backreferences
   • Modifiers
   • Atomic Grouping and Possessive Quantifiers
   • Lookaround
   • Continuing from The Previous Match
   • Conditionals
   • Comments
   • Unicode Characters
   • Unicode Properties, Scripts and Blocks
   • .NET Syntax for Named Capture and Backreferences
   • Python Syntax for Named Capture and Backreferences
   • XML Character Classes
   • POSIX Bracket Expressions
6. Replacement Text Reference.
   • Syntax Using Backslashes
   • Syntax Using Dollar Signs
   • Tokens Without a Backslash or Dollar
   • General Replacement Text Behavior
   • Highest-Numbered Capturing Group