The $Regexp function uses specified regular expression as a pattern for data generation. The only mandatory parameter is a regular expression, an empty string is acceptable.

Supported Options

• The function supports standard UNIX-style regular expressions except items mentioned in 'Limitations' section.
• \d means digit
• \w means letter digit or '_'
• \s means space symbols
• Repeaters: {n} means exact n times, {n,m} means between n and m times

Limitations

1. The function ignores '$' and '^' signs for begin and end.
2. The function does not support negative ranges like [^0-9].
3. Only \1 to \9 blocks can be used.