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Regular expressions (Regexp) are a powerful way to process strings, allowing you to find substrings (part of a string) in strings according to complex conditions. They are present in all high-level languages without exception and are often encountered in everyday work. However, you can only use the full power of regular expressions if you understand their language.
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- Handle strings efficiently in your language
- Define complex expressions using character classes, ranges and conditions
- Control the behavior of regular expressions with flags
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1 | Character representation. Metacharacter. Learn basic regular expressions |
2 | Character classes Learn how to compose and use character groups |
3 | Position within a string Learn to set boundaries |
4 | Alternative Learn to use an enum |
5 | Quantification Learn how to set repetitions |
6 | Greediness Stop being greedy |
7 | Grouping. Backreferences Learn how to reuse groups in regular expressions |
8 | Modifiers Learn to control via flags inside a regular expression |
9 | Look forward/backward Learn how to exclude viewed matches from groups |
10 | Search by condition Learn to set conditions |
11 | Flags Learn the main global flags |
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