47 lines
1.0 KiB
Perl
47 lines
1.0 KiB
Perl
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#!/usr/bin/env perl -w
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use strict;
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my $filename = $ARGV[0];
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if (!$filename) {
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print "Usage: longlines.pl <filename> [length]\n";
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exit(1);
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}
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# Set a default maximum line length.
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my $max_length = $ARGV[1] || 80;
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my @lines = ();
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my $line_num = 0;
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open(HANDLE, "<", $filename) or die "Cannot open $filename\n";
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# Read the file and track the lines with length > $max_length.
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while (<HANDLE>) {
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$line_num++;
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# Subtract one because the newline doesn't count toward the
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# length.
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if (length($_) - 1 > $max_length) {
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push @lines, $line_num;
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}
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}
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# If more than five long lines were found, truncate to five and
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# indicate that others were present, too.
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if (@lines > 5) {
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@lines = @lines[0..4];
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push @lines, "and others";
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}
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# If any long lines were found, notify and exit(1); otherwise,
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# exit(0).
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if (@lines) {
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print $filename." (line".((@lines > 1) ? "s" : "")." ".
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join(", ", @lines)." exceed".((@lines == 1) ? "s" : "").
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" length $max_length)\n";
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exit(1);
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} else {
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exit(0);
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}
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