Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

grep: no match for empty pattern file #821

Merged
merged 1 commit into from
Nov 19, 2024
Merged

grep: no match for empty pattern file #821

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
19 changes: 14 additions & 5 deletions bin/grep
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,11 @@ use File::Spec;
use File::Temp qw();
use Getopt::Std;

our $VERSION = '1.017';
use constant EX_MATCHED => 0;
use constant EX_NOMATCH => 1;
use constant EX_FAILURE => 2;

our $VERSION = '1.018';

$| = 1; # autoflush output

Expand All @@ -75,15 +79,15 @@ my %Compress = (
my ($opt, $matcher) = parse_args(); # get command line options and patterns
matchfile( $opt, $matcher, @ARGV ); # process files

exit(2) if $Errors;
exit(0) if $Grand_Total;
exit(1);
exit(EX_FAILURE) if $Errors;
exit(EX_MATCHED) if $Grand_Total;
exit(EX_NOMATCH);

###################################

sub VERSION_MESSAGE {
print "$Me version $VERSION\n";
exit 0;
exit EX_MATCHED;
}

sub usage {
Expand Down Expand Up @@ -214,6 +218,7 @@ sub parse_args {
}

# multiple -e/-f options
my $opt_f = 0;
my @tmparg;
while (@ARGV) {
my $arg = shift @ARGV;
Expand All @@ -223,6 +228,7 @@ sub parse_args {
push @patterns, $pattern;
}
elsif ($arg =~ s/\A\-f//) {
$opt_f = 1;
my $file = length($arg) ? $arg : shift(@ARGV);
usage() unless defined $file;
die "$Me: $file: is a directory\n" if -d $file;
Expand Down Expand Up @@ -260,6 +266,9 @@ sub parse_args {
$opt{'l'} = 0 if $opt{'L'};
my $no_re = $opt{F} || ( $Me =~ /\bfgrep\b/ );

if ($opt_f && scalar(@patterns) == 0) { # empty -f file allowed
exit EX_NOMATCH;
}
unless (length $pattern) {
$pattern = shift @ARGV;
usage() unless defined $pattern;
Expand Down
Loading