I have two regular expressions.
$exp1 = "123*"
$exp2 = "1233*"
is stored in a MySQL table and user is entering $exp2
from a UI. We know that $exp1
will match all strings matched by $exp2
. So I want to compare the two expressions. If I use any operator like eq or cmp
I will get this as unequal. If I compare like $exp1 =~ /^$exp2/ or $exp2 =~ /^$exp1/
, it won't match as the meta characters like *
has a different meaning on LHS and RHS of =~
. Is there a way other than parsing the string to match them?
$exp1 is from DB and $exp2 is entered. Since $exp1 will match all expressions that would be matched by $exp2, I dont want to insert $exp2 into DB.
Gods Own Country...