Regular expressions pcre2 · Quantifiers, groups and alternation
Group without capturing
Group for alternation or repetition without creating a numbered group.
(?:https?|ftp)://
Official Regular expressions pcre2 documentation
More quantifiers, groups and alternation commands
- Repeat a pattern
- Match as little as possible
- Match one of several options
- Capture parts of a match
- Name a capture group
- Match repeated text
All quantifiers, groups and alternation commands · Regular expressions pcre2 cheatsheet