[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M] [N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z] ` string metacharacter q// operator qq// operator qr// operator comments in regular expressions interpolated matches qualify_to_ref( ) query_form( ) quote( ) quotemeta( ) quotewords( ) qw( ) |