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Add check for content prior to filename #129

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Add check for content prior to filename #129

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54 changes: 36 additions & 18 deletions lib/Parse/CPAN/Meta.pm
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Original file line number Diff line number Diff line change
Expand Up @@ -17,28 +17,46 @@ sub load_file {

my $meta = _slurp($filename);

if ($filename =~ /\.ya?ml$/) {
return $class->load_yaml_string($meta);
}
elsif ($filename =~ /\.json$/) {
return $class->load_json_string($meta);
}
else {
$class->load_string($meta); # try to detect yaml/json
}
return $class->load_yaml_string($meta) if $class->yaml_content($meta);
return $class->load_json_string($meta) if $class->json_content($meta);
return $class->load_yaml_string($meta) if $class->yaml_filename($filename);
return $class->load_json_string($meta) if $class->json_filename($filename);

# maybe doc-marker-free YAML
return $class->load_yaml_string($meta);
}

sub load_string {
my ($class, $string) = @_;
if ( $string =~ /^---/ ) { # looks like YAML
return $class->load_yaml_string($string);
}
elsif ( $string =~ /^\s*\{/ ) { # looks like JSON
return $class->load_json_string($string);
}
else { # maybe doc-marker-free YAML
return $class->load_yaml_string($string);
}
return $class->load_yaml_string($string) if $class->yaml_content($string); # looks like YAML
return $class->load_json_string($string) if $class->json_content($string); # looks like JSON

# maybe doc-marker-free YAML
return $class->load_yaml_string($string);
}

sub yaml_content {
my ($class, $content) = @_;
return 0 unless $content;
return 1 if ( $content =~ /^---/ ); # Looks like YAML
}

sub yaml_filename {
my ($class, $filename) = @_;
return 0 unless defined $filename;
return 1 if ($filename =~ /\.ya?ml$/); # Named for YAML
}

sub json_content {
my ($class, $content) = @_;
return 0 unless $content;
return 1 if ( $content =~ /^\s*\{/ ); # Looks like JSON
}

sub json_filename {
my ($class, $filename) = @_;
return 0 unless defined $filename;
return 1 if ($filename =~ /\.json$/); # Named for JSON
}

sub load_yaml_string {
Expand Down