regexp(n) on macOS
The text 0c7519c59429, as Mac OS X 10.3.9, Mac OS X 10.3.8, Mac OS X 10.3.7, Mac OS X 10.3.6, Mac OS X 10.3.5, Mac OS X 10.3.4, Mac OS X 10.3.3, Mac OS X 10.3.2, Mac OS X 10.3.1, Mac OS X 10.3 shipped it.
Match a regular expression against a string
Flags it lists
-
-- -
-about -
-all -
-expanded -
-indices -
-inline -
-line -
-lineanchor -
-linestop -
-nocase -
-start