... 17:114Chapter 1: Introduction to Regular Expressions Regular Expressions as a LanguageUnless you’ve had some experience with regular expressions, you won’t under-stand the regular expression !ˆ( From;Subject ... problem, butone with regular expression support can make the job substantially easier. Regular expressions ar e the key to powerful, flexible, and efficient text processing. Regular expressions themselves, ... expect from any given regular expression. Regular Expressions and CarsThe considerations just listed parallel the way one might think while shopping foracar.With regular expressions, the metacharacters...