Module Re.GroupSource

Information about groups in a match. As is conventional, every match implicitly has a group 0 that covers the whole match, and explicit groups are numbered from 1.

Raise Not_found if the group did not match

Similar to get, but returns an option instead of using an exception.

Raise Not_found if the group did not match

Similar to offset, but returns an option instead of using an exception.

Return the start of the match. Raise Not_found if the group did not match.

Similar to start_opt, but returns an option instead of using an exception.

Return the end of the match. Raise Not_found if the group did not match.

Similar to stop_opt, but returns an option instead of using an exception.

Return the empty string for each group which did not match

Return (-1,-1) for each group which did not match

Test whether a group matched

Returns the total number of groups defined - matched or not. This function is experimental.