Anyone want to pick up this? I just don't have the time, but I would like to see it in Perl6. ========================= =head1 TITLE Builtin list context lindex() function =head1 VERSION Maintainer: NA <[EMAIL PROTECTED]> Date: 09 SEP 2000 Version: 0 Mailing List: perl6-language Number: 1 =head1 ABSTRACT Offer a simpler way to iterate through a list/array for matching purposes by adding the function C<lindex>. =head1 DESCRIPTION RFCs 207 and 262 offer suggestions regarding loop iterators and array indices, but still require a loop to parse through the entries of the list. This RFC proposes a C<lindex> function for finding list entries that match the expression. The builtin would return the index of the list entry that matched the expression passed. =head1 IMPLEMENTATION I can think of two options for implementation: =head2 Similar to C<index> C<list_index = lindex @list, EXPR, [offset]>. =head2 Similar to C<substr> C<list_index = lindex @list, EXPR, [offset, replacement] In both cases, C<offset> should be I<null> of I<undef> for subsequent calls to the function if an incremental search is desired. The function should also return I<undef> for a null list or if the end-of-list is reached. A negative number passed to offset, could also indicate a reverse search, or a starting-point from the end-of-list. =head1 REFERENCES
