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I have to remove the string between two delimiters, i.e
From “123XabcX321” I want “123321”.
For a simple case, I’m fine with:
$_=<>;
s/X(.*)X//;
print;
But if there’s ambiguity in the input like “123XabcXasdfjXasdX321”, it matches the first X with the last X and I get “123321” but I want “123asdfj321”.
Is there a way to specify an “eager” match that matches with the first valid possible delimiter and not the last?
It’s normally called “ungreedy”, you put a ? after the quantifier:
s/X(.*?)X//;