In strings.pod, the following string functions are documented and (most|all) are already implemented: DOCUMENTED: chopn concat length substr string_nprintf However, Perl5 also includes the following functions that operate on or otherwise relate to strings: IN PERL5: chomp chr crypt hex index lc lcfirst oct ord pack q/STRING/ qq/STRING/ reverse rindex tr/// uc ucfirst y/// Are these latter functions going to receive opcodes and vtable entries of their own? Or will they be composites of lower level ops? (Simon, I remember that you said you wanted to hold on vtable modifications for the nonce; and thank _you_ for remembering me! :>) Dave