Substitute expression (magic)
| - | - |
|---|---|
& * |
* \0 |
\1…\9 |
Replace with the group 0-9 |
\u |
Uppercase next letter |
\U |
Uppercase following characters |
\l |
Lowercase next letter |
\L |
Lowercase following characters |
\e |
End of \u, \U, \l and \L |
\E |
End of \u, \U, \l and \L |
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