Wolfram: String Match

By Xah Lee. Date: . Last updated: .

Check a Pattern Exist

These functions take a string pattern. either Regular Expression or String Expression.

StringStartsQ
StringEndsQ
StringMatchQ
StringMatchQ["abc", RegularExpression[ "..." ] ]
(* True *)

(* must match the whole string *)
StringMatchQ["abc", RegularExpression[ "." ] ]
(* False *)
StringContainsQ
StringContainsQ[ "SOME THING", "th", IgnoreCase -> True ]
(* True *)
StringFreeQ