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executable file 112 lines (80 sloc) 2.048 kB
#!/usr/bin/perl -w
use strict;
use warnings;
use 5.010;
use File::Find;
use IO::File;
use Getopt::Long;
use Pod::Usage;
my %limits = (
c90 => {
'logical-source-line-length' => 509,
},
c99 => {
'logical-source-line-length' => 4095,
},
);
my %opt = (
std => 'c99',
);
GetOptions(\%opt, qw( logical-source-line-length=i std=s ))
&& @ARGV && exists $limits{$opt{std}}
or pod2usage(2);
for my $k (keys %{$limits{$opt{std}}}) {
$opt{$k} //= $limits{$opt{std}}{$k};
}
{
my $num = 1;
sub report
{
my $msg = shift;
my $info = join '', @_;
if ($info) {
$info =~ s/\R+$//;
$info =~ s/^/ #|\t/mg;
$info = "\n$info\n\n";
}
warn sprintf "[%d] %s(%d): %s\n%s",
$num++, $File::Find::name, $., $msg, $info;
}
}
find(sub {
/\.([ch]|xs)$/ or return;
my $fh = IO::File->new($_) or die "$_: $!\n";
my $ll = '';
while (defined(my $line = <$fh>)) {
report("trailing whitespace after backslash", $line)
if $line =~ /\\[[:blank:]]+$/;
$ll .= $line;
unless ($ll =~ /\\$/) {
if (length $ll > $opt{'logical-source-line-length'}) {
report(sprintf("logical source line too long (%d > %d)",
length $ll, $opt{'logical-source-line-length'}), $ll);
}
$ll = '';
}
}
}, @ARGV);
__END__
=head1 NAME
checkansi.pl - Check source code for ANSI-C violations
=head1 SYNOPSIS
checkansi.pl [B<--std>=c90|c99]
[B<--logical-source-line-length>=I<num>]
<path> ...
=head1 DESCRIPTION
B<checkansi.pl> searches
=head1 OPTIONS
=over 4
=item B<--std>=c90|c99
Choose the ANSI/ISO standard against which shall be checked.
Defaults to C<c99>.
=item B<--logical-source-line-length>=I<number>
Maximum length of a logical source line. Overrides the default
given by the chosen standard.
=back
=head1 COPYRIGHT
Copyright 2007 by Marcus Holland-Moritz <mhx@cpan.org>.
This program is free software; you may redistribute it
and/or modify it under the same terms as Perl itself.
=cut
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