Feature: Non-Capturing Groups
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A Non-capturing Group is a subexpression that can be treated as an Atom and can be repeated using Quantifiers but cannot be referenced using Backreferences. A Non-capturing Group is not captured by the matching algorithm.
Syntax
NOTE: The following syntax is an example based on some of the supported engines. For specific engine support, see Engines.
(?:…)— Groups the subexpression as a single Atom.
Engines
| Engine | Supported |
|---|---|
| Perl | ✔ |
| PCRE | ✔ |
| Boost.Regex | ✔ |
| .NET | ✔ |
| Oniguruma | ✔ |
| Hyperscan | ✔ |
| ICU | ✔ |
| Glib/GRegex | ✔ |
| ECMAScript | ✔ |