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→Complex Regular Expressions
:*'''Anchors: ''' <span style="font-family:courier;font-weight:bold;">^</span> , <span style="font-family:courier;font-weight:bold;">$</span><br>Match lines the begin (^) or end ($) with a pattern.<br><br>
:*'''Single Character:''' <span style="font-family:courier;font-weight:bold;">.</span><br>Represents a single character that can be any type of character.<br><br>
:*'''Character Class:''' <span style="font-family:courier;font-weight:bold;">[ ]</span> , <span style="font-family:courier;font-weight:bold;">[^ ]</span>
:*'''Zero or More Occurrence:''' <span style="font-family:courier;font-weight:bold;">*</span>
