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Swift 5.7: Regex

What's new?
Frontentica
Team
March 5, 2023

Swift 5.7: Exploring the New Regex Features

Swift 5.7 introduces several notable enhancements to regular expressions, making pattern matching more powerful and user-friendly.

Here’s a look at what's new:

1. Integration of Real Parsers

Swift 5.7 allows the use of existing parsers directly within regular expressions. This integration means you can leverage well-developed parsers as components of your regex patterns, streamlining the parsing process.

2. Enhanced Unicode Support

The new regex features in Swift 5.7 include:

  • Canonical Equivalence: This ensures that different representations of the same Unicode character are treated as equivalent.
  • Extended Clusters of Graphemes and Symbol Classes: These additions improve the handling of Unicode characters and symbols, allowing for more precise and flexible pattern matching.

3. Improved Readability with Regular Expression Builders

Swift’s regex syntax has been made more comprehensible through the introduction of regular expression builders, including the resultBuilder. These builders help in crafting clearer and more maintainable regex patterns.

4. Predictable Execution and Control Elements

The new regex features offer predictable execution and more transparent control elements. By using Swift Regex, developers benefit from enhanced development environment hints and reduced compile-time errors, leading to a smoother coding experience.


These updates in Swift 5.7 aim to simplify working with regular expressions and enhance their functionality, providing developers with more powerful and intuitive tools for pattern matching.

At Frontetica, we specialize in full-cycle software development, including Swift software solutions tailored to meet your business needs. Learn more about our Swift Software Development services here.

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