Grouping and Capturing
Matching Word Boundaries
You have a test String S. Your task is to write a regex which will match word starting with vowel (a,e,i,o, u, A, E, I , O or U). The matched word can be of any length. The matched word should consist of letters (lowercase and uppercase both) only. The matched word must start and end with a word boundary.
Capturing and Non-Capturing Groups
You have a test String S. Your task is to write a regex which will match S with the following condition:
S should have 3 or more consecutive repetitions of
ok
.
Alternative Matching
Given a test string, s, write a RegEx that matches s under the following conditions:
must start with
Mr.
,Mrs.
,Ms.
,Dr.
orEr.
.The rest of the string must contain only one or more English alphabetic letters (upper and lowercase).
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