Changes

'''Complex Regular Expressions'''

The problem with using literals or simple regular expressions is that only <u>simple</u> or <u>general</u> patterns are matched.

:'''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>