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  1. #!/usr/bin/perl
  2.  
  3. $file = 'chapter1.txt';
  4. my ($chapnumber) = ($file =~/chapter(\d+).txt/);
  5.  
  6. while (<>)
  7. { 
  8.     ~s/\[(\d+)]/<a href="c${chapnumber}f$1.html">[$1]<\/a>/g; 
  9.     print $_;
  10. }
Success #stdin #stdout 0s 4596KB
comments (?)
stdin
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abc [1] aba [5]
stdout
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abc <a href="c1f1.html">[1]</a> aba <a href="c1f5.html">[5]</a>
https://ideone.com/moBAf
language:
Perl (perl 5.28.1)
created:
12 years ago
visibility:
secret

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