The first time I ever encountered a regular expression was many years ago now, but I still remember my first thoughts on it: What is this string-like thing? I don’t want to touch it, it looks scary. I ...

If you’ve programmed in Perl or any other language with built-in regular-expression capabilities, then you probably know how much easier regular expressions make text processing and pattern matching.

This group consists of CALL RXCHANGE, CALL RXFREE, CALL RXSUBSTR, RXMATCH, and RXPARSE, and comprises the character string matching category for functions and CALL routines. For a description, see ...

You know the maxim, “Give a man to fish and he eats for a day; teach a man to fish and he eats for a lifetime”? A similar adage applies to anyone who spends a lot of time working with text on their ...

You can use a special group of functions and CALL routines to match or change data according to a specific pattern that you specify. By using these functions and CALL routines, you can determine ...