RegEx
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Notes for RegEx respectively Regular Expressions.
Guide (german): https://t3n.de/news/regex-guide-t3n-552858/
General Rules
| Type | Example |
|---|---|
| Literal | a b c 1 2 3 |
| Meta character | ( ) ^ $ |
| Meaning | Example |
|---|---|
| Character Class Digit | d |
| Character Class Character | w |
| Character Class Whitespace | s |
| Inversion of Character Classes | D, W, S, [^abc] |
| Single Character | . |
| Multiplier | {42}, {4,20} |
| One or multiple characters | + |
| Zero or one character | ? |
| Zero or multiple characters | * |
| Grouping with alternatives | Tues)day |
| Word and text boundaries | b ^ $ |
