in reply to Re^6: Why my Regex doesn't work
in thread Why my Regex doesn't work

Generally, you'd need
pos($_) -= length($&) - 1;

instead of subtracting 1, because the overlap could be longer. Tested with

$_ = "AAAABAAAA"; while (/AAA/g) { ...
($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,