* gabriele renzi <[EMAIL PROTECTED]> [2007-04-14 22:20]: > sorry about the dumb question but I'm not sure I understand the > <at($pos)> assertion. > > If I write something like > my $s="hello" > s/<at(1)>/a/ > I expected it to give me > "hallo" > whereas it give ms > "haello". > > Does it mean that basically the assertion is a character/string > property instead of the character/string itself?
No, it is a zero-width assertion. `at(1)` means the position “between” the 0th and 1th character of the string. > Also, what is the correct way to replace the i-th character in > a Str ? `substr`. Regards, -- Aristotle Pagaltzis // <http://plasmasturm.org/>
