📄 ch05.022_prob
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################################################################################ Code fragment (NOT RECOMMENDED) from Chapter 5 of "Perl Best Practices" #### Copyright (c) O'Reilly & Associates, 2005. All Rights Reserved. #### See: http://www.oreilly.com/pub/a/oreilly/ask_tim/2001/codepolicy.html ################################################################################# Standard modules...use strict;use warnings;use IO::Prompt;use Carp;use Data::Alias;use Readonly;Readonly my $STD_HEADER => '<html><head>Std header</head>';my $html = <<'END_BODY';Non-standard header.<body> Body here</body>Other stuff hereEND_BODYsub verify_body { my ($body) = @_; return $body;}$html =~ s{.*? (<body> .* </body>) .*} # Locate components of page { $STD_HEADER # Ensure standard header is used . verify_body($1) # Check contents . '</html>' # Remove any trailing extras }exms;use Data::Dumper 'Dumper';warn Dumper [ $html ];⌨️ 快捷键说明
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