check-regexp - test regular expressions from the command line
check-regexp regular expression string1 string2 ...
check-regexp (GNU Source-highlight)
You simply pass as the first command line argument the regular
expression and then the strings you want to try to match.
It is crucial, in order to avoid shell substitutions, to enclose both
the expression and the strings in single quotes.
The program then prints some information about the possibly successful
In the output the what part represents the whole match, and the
what[i] part represents the i-th marked subexpression that matched.
The program also prints possible prefix and suffix.
This program follows the usual GNU command line syntax, with long
options starting with two dashes (‘-’). A summary of options is
Print help and exit
Print version and exit
check-regexp was written by Lorenzo Bettini <www.lorenzobettini.it>.
This man page was written by Cesare Tirabassi <email@example.com>.