Matches only ABC_DEF, not: ABC__DEF _ABC_DEF __ABC_DEF ABC_DEF_ ABC_DEF__...

find an ip address in a string

Find phone numbers in a text string.

Using (?m) to match only the wanted line

This will find SSN in multiple forms in a document. Source for ED https://www.jscape.com/blog/bid/79591/exploring-regular-expressions-in-dlp

Should be able to match a dot-separated decimal number (C-style) Works with: integers floating-point scientific notation

password 8-16 characters atleast 1 lowercase,1 upper case,1 Spl. char,1 digit

this will match the frequently and rarely using musical chords in a sheet music

For this task, I did not need inet6 (IPv6 stuff), so I left it out. The regex in its current state does not allow for that to be included without manually adding the entire second part

8 digits or 10 digits

validates any date in (d)d-(M)M-yyyy format from 1581-01-01 to 9999-12-31, allowed delimiters are "/", "." and "-"

validates any date in yyyy-M-d format from 1581-01-01 to 9999-12-31, allowed delimiters are "/", "." and "-"