Question: 5. The Write a single constant>, following EBNF grammar describes the syntax of C's floating-point constants. Perl pattern that matches the strings that can be

5. The Write a single constant>, following EBNF grammar describes the syntax of C's floating-point constants. Perl pattern that matches the strings that can be derived from cfloat- -> [ ] [ [ ] . exponent> e [ ] I [ ] 1 digit-sequence> . E[ ] -> + | - -> | f | 1 | F | L 5. The Write a single constant>, following EBNF grammar describes the syntax of C's floating-point constants. Perl pattern that matches the strings that can be derived from cfloat- -> [ ] [ [ ] . exponent> e [ ] I [ ] 1 digit-sequence> . E[ ] -> + | - -> | f | 1 | F | L

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