terminal_image ->auto_link: pattern=regex,
target=[char_array]Make text that matches pattern a hyperlink, as if the
client had marked it using OSC 8. If target is omitted, the
link points at the matched text. Otherwise it points at target,
where \0 ..
\9 are replaced by what the corresponding group of pattern
matched (nothing if the group did not take part in the match) and
\\ by a single backslash. Patterns are tried in the order
they were added. Fails, printing an error, if pattern is
not a valid regular expression. See Automatic links (section
1.194.4).
