What is the most essential purpose of parentheses in regular expressions ?
A. Define pattern matching techniques
B. Define subpatterns within the complete pattern
C. Define portion of strings in the regular expression
D. All of the mentioned
Answer:B
What is the most essential purpose of parentheses in regular expressions ?
A. Define pattern matching techniques B. Define subpatterns within the complete pattern C. Define portion of strings in the regular expression D. All of the mentioned