Checks if the text in and around the specified position matches any of the
regular expressions previously set using Terminal.matchAdd. If a
match exists, the text string is returned and if tag is not NULL, the number
associated with the matched regular expression will be stored in tag.
If more than one regular expression has been set with
Terminal.matchAdd, then expressions are checked in the order in
which they were added.
Checks if the text in and around the specified position matches any of the regular expressions previously set using Terminal.matchAdd. If a match exists, the text string is returned and if tag is not NULL, the number associated with the matched regular expression will be stored in tag.
If more than one regular expression has been set with Terminal.matchAdd, then expressions are checked in the order in which they were added.