| abc… | Letters |
| | 123… | Digits |
| | \d | any Digit |
| | . | any Character |
| | \. | Period |
| | [abc] | Only a, b, or c |
| | [^abc] | Not a, b, nor c |
| | [a-z] | Characters a to z |
| | [0-9] | Numbers 0 to 9 |
| | {m} | m Repetitions |
| | {m,n} | m to n Repetitions |
| | * | Zero or more repetitions |
| | + | One or more repetitions |
| | ? | Optional |
| | \s | any Whitespace |
| | ^…$ | Starts and ends |
| | () | capture Group |
| | (a(bc)) | capture Sub group |
| | (.*) | capture Variable content |
| | (a|b) | Matchs a or b |
| | \w | any Alphanumeric character |
| | \W | any Non-alphanumeric character |
| | \d | any Digit |
| | \D | any Non-digit character |
| | \s | any Whitespace |
| | \S | any Non-whitespace character |
No comments:
Post a Comment