Learning Regular Expressions

Download free course Learning Regular Expressions, pdf file on 94 pages by Stack Overflow Community.

A regular expression (regex or regexp) is a sequence of characters that define a search pattern. It is an unofficial and free Regular Expressions book created for educational purposes. All the content is extracted from Stack Overflow Documentation, which is written by many hardworking individuals at Stack Overflow.

Table of contents

Getting started with Regular Expressions
Anchor Characters: Caret (^)
Anchor Characters: Dollar ($)
Atomic Grouping
Back reference
Backtracking
Capture Groups
Character classes
Escaping
Greedy and Lazy quantifiers
Lookahead and Lookbehind
Match Reset: \K
Matching Simple Patterns
Named capture groups
Password validation regex
Possessive Quantifiers
Recursion
Regex modifiers (flags)
Regex Pitfalls
Regular Expression Engine Types
Substitutions with Regular Expressions
Useful Regex Showcase
UTF-8 matchers: Letters, Marks, Punctuation etc.
When you should NOT use Regular Expressions
Word Boundary

Pages :	94
Size :	1.5 MB
File type :	PDF
Downloads:	94
Created:	2022-02-03
License:	CC BY-SA
Author(s):	Stack Overflow Community

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