replacement

var replacement: <Error class: unknown class>

Replacement text. In REGEX mode, ``$N`` sequence references ``N``-th capturing group. All backslashes (``\``) and dollar signs (``$``) without a special meaning should be quoted (as ``\\`` and ``\$``, respectively). In REGEX_MIXED and FIXED_STRINGS modes, backslashes (``\``) and dollar signs (``$``) have no special meaning.