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→Complex Regular Expressions
The problem with using literals or simple regular expressions is that general patterns are matched.
There are other regular expression tools to provide more precise matches. These tools are '''complex''' and '''extended''' regular expressions.
Complex Regular Expressions use symbols to help match text for more precise or complex patterns.�The most common complex regular expression symbols are displayed below:�
:*'''Anchors ''' '''^ ''' , '''$''':*'''Characters .''':*'''Character Class [ ] ''' , '''[^ ]''':*'''Zero or More Occurrence *'''
===Extended Regular Expressions===