Consider the following regular expression in Perl: /^(?:((?:ab)+) |a((?:ba)*))$/. Describe, in English, the set of strings it
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Consider the following regular expression in Perl: /^(?:((?:ab)+) |a((?:ba)*))$/. Describe, in English, the set of strings it will match. Show a natural NFA for this set, together with the minimal DFA. Describe the substrings that should be captured in each matching string. Based on this example, discuss the practicality of using DFAs to match strings in Perl.
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