The shorthand of character classes
Class |
Description |
|---|---|
\w |
Characters comprising a word, as in [a-zA-Z0-9_] |
\W |
Characters not consisting a word, as in [^a-zA-Z0-9_] |
\s |
Spaces |
\S |
Characters excluding spaces |
\d |
Numbers, as in [0-9] |
\D |
Characters excluding numbers, as in [^0-9] |