regex
https://dokuwiki.webmastermsk.ru/
2026-08-12T12:48:06+0000
https://dokuwiki.webmastermsk.ru/
https://dokuwiki.webmastermsk.ru/lib/tpl/dokuwiki/images/favicon.icotext/html2023-01-12T09:18:09+0000Anonymous (anonymous@undisclosed.example.com)regex:utverzhdenija_lookahead
https://dokuwiki.webmastermsk.ru/doku.php?id=regex:utverzhdenija_lookahead&rev=1673515089&do=diff
утверждения lookahead
Регулярное выражение:
^(?=(?:\D*\d){0,3}\D*$).{6,25}$
Объяснение:
^ # Start of string
(?= # Assert that the following can be matched here:
(?:\D*\d) # Any number of non-digits, followed by one digit
{0,3} # (zero to three times)
\D* # followed by only non-digits
$ # until the end of the string
) # (End of lookahead)
.{6,25} # Match 6 to 25 characters (any characters except newlines)
$ # End of strin…