How to reverse regular expression in Java? For example, ‘ab.+de’ => ‘ed.+ba’.
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How to reverse regular expression in Java? For example, ‘ab.+de’ => ‘ed.+ba’.
wow.
You need to build a parser for regular expression and reverse all of the tokens/parts.
in this case
ab.+de is
a , b, .+ , d , e
and reverse this is
e, d, .+, b, a
now imagine groups
((ab)(.+de))
the reverse is
((ed.+)(ba))