Ruby RegExp a magical tool for text processing

Description

Preface Prerequisites Acknowledgements Feedback and Errata Author info License Book version Why is it needed? Regexp literal and operators match? method Regexp literal reuse and interpolation Regexp operators Cheatsheet and Summary Exercises Anchors String anchors Line anchors Word anchors Cheatsheet and Summary Exercises Alternation and Grouping OR conditional Regexp.union method Grouping Regexp.source method Precedence rules Cheatsheet and Summary Exercises Escaping metacharacters Regexp.escape method Escaping delimiter Cheatsheet and Summary Exercises Dot metacharacter and Quantifiers Dot metacharacter Greedy quantifiers Non-greedy quantifiers Possessive quantifiers Cheatsheet and Summary Exercises Working with matched portions match method scan method regexp global variables Cheatsheet and Summary Exercises Character class Custom character sets Character class metacharacters Escape sequence character sets Named character sets Cheatsheet and Summary Exercises Groupings and backreferences Backreferences Subexpression calls Non-capturing groups Named capture groups Negative backreferences Cheatsheet and Summary Exercises Lookarounds Negative lookarounds Positive lookarounds AND conditional Variable length lookbehind Cheatsheet and Summary Exercises Modifiers Cheatsheet and Summary Exercises String Encoding Unicode character sets \X vs dot metacharacter Cheatsheet and Summary Exercises Miscellaneous Using hashes \G anchor Recursive matching Substitution in conditional expression Cheatsheet and Summary Exercises Gotchas Further Reading