CODEWITHSUNDEEP
regexperl
Tim Haggard
Tim Haggard

Reputation: 105

Removing Comments with Perl

Is there any regular expression that is able to remove all comments of the // and /**/ variety from a given C program say in perl?

Given the multi-line program, it should use the regular expression to remove the comments and return the non-commented out portion.

Thanks.

Upvotes: 3

Views: 3422

Answers (2)

Toto
Toto

Reputation: 91488

It's a FAQ:

How do I use a regular expression to strip C-style comments from a file?

Upvotes: 6

Tudor Constantin
Tudor Constantin

Reputation: 26861

Try with Regexp::Common::comment:

  use Regexp::Common qw /comment/;
  while (<>) {
        s/($RE{comment}{C++})//;
  }

Upvotes: 7

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