Use the matches operator to compare a string to a regular expression. Use of the like operator resembles the use of regular expressions in UNIX® or Perl; for simpler regular expressions, see like operator.
[abc]
[a-c]
The hyphen (-) has no special meaning outside of bracket delimiters.
[^abc]
The caret has no special meaning other than in the first position within brackets.
Any other character in the regular expression is a literal that is compared to a single character in the source string.
myVar01 = "abcdef"; // evaluates as TRUE if (myVar01 matches "a?c*") ; end
myVar01 = "ab*def"; // evaluates as TRUE if (myVar01 matches "ab\\*[abcd][abcde][^a-e]") ; end
myVar01 = "ab*def"; // the next logical expression evaluates to "true" if (myVar01 matches "ab+*def" escape "+") ; end