The matches and lookingat Methods:
The matches and lookingat methods both endeavor to match an information succession
against an example. The distinction, then again, is that matches requires the whole enter
grouping to be matched, while lookingat does not. Both techniques dependably begin
toward the start of the data string.
The replacefirst and replaceall Methods:
The replacefirst and replaceall routines supplant content that matches a given standard
representation. As their names show, replacefirst replaces the first event, and replaceall
replaces all events.
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