March 2019
Intermediate to advanced
584 pages
19h 5m
English
Content preview from The Well-Grounded Rubyist, Third Edition
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Chapter 11. Regular expressions and regexp-based string operations
This chapter covers
- Regular expression syntax
- Pattern-matching operations
- The MatchData class
- Built-in methods based on pattern matching
In this chapter, we’ll explore Ruby’s facilities for pattern matching and text processing, centering around the use of regular expressions. A regular expression in Ruby serves the same purposes it does in other languages: it specifies a pattern of characters, a pattern that may or may not correctly predict (that is, match) a given string. Pattern-match operations are used for conditional branching (match/no match), pinpointing substrings (parts of a string that match parts of the pattern), and various text-filtering ...
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