added str_match method

Program's_Contributed_By_Contributors/Python_Programs/regex.py

@@ -0,0 +1,15 @@
+# simple string matching and other normal validation using regular expressions
+
+import re  # import regular expression module
+
+# class for regex snippets
+class regex:
+    def __init__(self) -> None:
+        pass
+
+    # Matching string
+    def str_match(self, pattern, string):
+        if re.search(pattern, string):
+            return True
+        else:
+            return False