Substitution
| Pattern | Description |
|---|---|
\0 |
Complete match contents |
\1 |
Contents in capture group 1 |
$1 |
Contents in capture group 1 |
${foo} |
Contents in capture group foo |
\x20 |
Hexadecimal replacement values |
\x{06fa} |
Hexadecimal replacement values |
\t |
Tab |
\r |
Carriage return |
\n |
Newline |
\f |
Form-feed |
\U |
Uppercase Transformation |
\L |
Lowercase Transformation |
\E |
Terminate any Transformation |
Comments