Re: Multi-line comments in perl code?

You could plan to run all your Perl sources through the C preprocessor before further use and that way co-opt its functionality. The added benefit is that you can then use all of the C preproprocessor functionality, e.g. macros, defined pre-execution symbols and so on in your Perl code - in fact this particular usage pales into triviality compared with what then becomes possible for projects with complex implementation and/or porting requirements.

#!/usr/bin/perl
#IFDEF COMMENT
    #+++
    I am a comment - symbol COMMENT is left undefined
    So there
    Instructions: this file is called fred.plp and should
    be run through the C preprocessor with output to fred.pl
    - modules could be presourced with the extension .pmp
    #---
#ENDIF
my $x = 1;
open my $fh, '<fred';
# etc.
__END__
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Re^2: Multi-line comments in perl code? by davorg (Chancellor) on Jul 14, 2006 at 13:39 UTC
You could plan to run all your Perl sources through the C preprocessor before further use There's even a command line option (-P) which does just that. Tho' it has to be pointed out that the docs say "Use of -P is strongly discouraged because of its inherent problems, including poor portability". -- <http://dave.org.uk> "The first rule of Perl club is you do not talk about Perl club." -- Chip Salzenberg	[reply]

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Re^2: Multi-line comments in perl code?
by davorg (Chancellor) on Jul 14, 2006 at 13:39 UTC

You could plan to run all your Perl sources through the C preprocessor before further use

There's even a command line option (-P) which does just that. Tho' it has to be pointed out that the docs say "Use of -P is strongly discouraged because of its inherent problems, including poor portability".

--
<http://dave.org.uk>

"The first rule of Perl club is you do not talk about Perl club."
-- Chip Salzenberg

[reply]