--- /dev/null
+#!perl
+use warnings;
+use strict;
+use Test::More 0.94;
+
+# Include a cut-down version of YAML::Tiny so we don't introduce unnecessary
+# dependencies ourselves.
+
+package Local::YAML::Tiny;
+
+use strict;
+use Carp 'croak';
+
+# UTF Support?
+sub HAVE_UTF8 () { $] >= 5.007003 }
+BEGIN {
+ if ( HAVE_UTF8 ) {
+ # The string eval helps hide this from Test::MinimumVersion
+ eval "require utf8;";
+ die "Failed to load UTF-8 support" if $@;
+ }
+
+ # Class structure
+ require 5.004;
+ $YAML::Tiny::VERSION = '1.40';
+
+ # Error storage
+ $YAML::Tiny::errstr = '';
+}
+
+# Printable characters for escapes
+my %UNESCAPES = (
+ z => "\x00", a => "\x07", t => "\x09",
+ n => "\x0a", v => "\x0b", f => "\x0c",
+ r => "\x0d", e => "\x1b", '\\' => '\\',
+);
+
+
+#####################################################################
+# Implementation
+
+# Create an empty YAML::Tiny object
+sub new {
+ my $class = shift;
+ bless [ @_ ], $class;
+}
+
+# Create an object from a file
+sub read {
+ my $class = ref $_[0] ? ref shift : shift;
+
+ # Check the file
+ my $file = shift or return $class->_error( 'You did not specify a file name' );
+ return $class->_error( "File '$file' does not exist" ) unless -e $file;
+ return $class->_error( "'$file' is a directory, not a file" ) unless -f _;
+ return $class->_error( "Insufficient permissions to read '$file'" ) unless -r _;
+
+ # Slurp in the file
+ local $/ = undef;
+ local *CFG;
+ unless ( open(CFG, $file) ) {
+ return $class->_error("Failed to open file '$file': $!");
+ }
+ my $contents = <CFG>;
+ unless ( close(CFG) ) {
+ return $class->_error("Failed to close file '$file': $!");
+ }
+
+ $class->read_string( $contents );
+}
+
+# Create an object from a string
+sub read_string {
+ my $class = ref $_[0] ? ref shift : shift;
+ my $self = bless [], $class;
+ my $string = $_[0];
+ unless ( defined $string ) {
+ return $self->_error("Did not provide a string to load");
+ }
+
+ # Byte order marks
+ # NOTE: Keeping this here to educate maintainers
+ # my %BOM = (
+ # "\357\273\277" => 'UTF-8',
+ # "\376\377" => 'UTF-16BE',
+ # "\377\376" => 'UTF-16LE',
+ # "\377\376\0\0" => 'UTF-32LE'
+ # "\0\0\376\377" => 'UTF-32BE',
+ # );
+ if ( $string =~ /^(?:\376\377|\377\376|\377\376\0\0|\0\0\376\377)/ ) {
+ return $self->_error("Stream has a non UTF-8 BOM");
+ } else {
+ # Strip UTF-8 bom if found, we'll just ignore it
+ $string =~ s/^\357\273\277//;
+ }
+
+ # Try to decode as utf8
+ utf8::decode($string) if HAVE_UTF8;
+
+ # Check for some special cases
+ return $self unless length $string;
+ unless ( $string =~ /[\012\015]+\z/ ) {
+ return $self->_error("Stream does not end with newline character");
+ }
+
+ # Split the file into lines
+ my @lines = grep { ! /^\s*(?:\#.*)?\z/ }
+ split /(?:\015{1,2}\012|\015|\012)/, $string;
+
+ # Strip the initial YAML header
+ @lines and $lines[0] =~ /^\%YAML[: ][\d\.]+.*\z/ and shift @lines;
+
+ # A nibbling parser
+ while ( @lines ) {
+ # Do we have a document header?
+ if ( $lines[0] =~ /^---\s*(?:(.+)\s*)?\z/ ) {
+ # Handle scalar documents
+ shift @lines;
+ if ( defined $1 and $1 !~ /^(?:\#.+|\%YAML[: ][\d\.]+)\z/ ) {
+ push @$self, $self->_read_scalar( "$1", [ undef ], \@lines );
+ next;
+ }
+ }
+
+ if ( ! @lines or $lines[0] =~ /^(?:---|\.\.\.)/ ) {
+ # A naked document
+ push @$self, undef;
+ while ( @lines and $lines[0] !~ /^---/ ) {
+ shift @lines;
+ }
+
+ } elsif ( $lines[0] =~ /^\s*\-/ ) {
+ # An array at the root
+ my $document = [ ];
+ push @$self, $document;
+ $self->_read_array( $document, [ 0 ], \@lines );
+
+ } elsif ( $lines[0] =~ /^(\s*)\S/ ) {
+ # A hash at the root
+ my $document = { };
+ push @$self, $document;
+ $self->_read_hash( $document, [ length($1) ], \@lines );
+
+ } else {
+ croak("YAML::Tiny failed to classify the line '$lines[0]'");
+ }
+ }
+
+ $self;
+}
+
+# Deparse a scalar string to the actual scalar
+sub _read_scalar {
+ my ($self, $string, $indent, $lines) = @_;
+
+ # Trim trailing whitespace
+ $string =~ s/\s*\z//;
+
+ # Explitic null/undef
+ return undef if $string eq '~';
+
+ # Quotes
+ if ( $string =~ /^\'(.*?)\'\z/ ) {
+ return '' unless defined $1;
+ $string = $1;
+ $string =~ s/\'\'/\'/g;
+ return $string;
+ }
+ if ( $string =~ /^\"((?:\\.|[^\"])*)\"\z/ ) {
+ # Reusing the variable is a little ugly,
+ # but avoids a new variable and a string copy.
+ $string = $1;
+ $string =~ s/\\"/"/g;
+ $string =~ s/\\([never\\fartz]|x([0-9a-fA-F]{2}))/(length($1)>1)?pack("H2",$2):$UNESCAPES{$1}/gex;
+ return $string;
+ }
+
+ # Special cases
+ if ( $string =~ /^[\'\"!&]/ ) {
+ croak("YAML::Tiny does not support a feature in line '$lines->[0]'");
+ }
+ return {} if $string eq '{}';
+ return [] if $string eq '[]';
+
+ # Regular unquoted string
+ return $string unless $string =~ /^[>|]/;
+
+ # Error
+ croak("YAML::Tiny failed to find multi-line scalar content") unless @$lines;
+
+ # Check the indent depth
+ $lines->[0] =~ /^(\s*)/;
+ $indent->[-1] = length("$1");
+ if ( defined $indent->[-2] and $indent->[-1] <= $indent->[-2] ) {
+ croak("YAML::Tiny found bad indenting in line '$lines->[0]'");
+ }
+
+ # Pull the lines
+ my @multiline = ();
+ while ( @$lines ) {
+ $lines->[0] =~ /^(\s*)/;
+ last unless length($1) >= $indent->[-1];
+ push @multiline, substr(shift(@$lines), length($1));
+ }
+
+ my $j = (substr($string, 0, 1) eq '>') ? ' ' : "\n";
+ my $t = (substr($string, 1, 1) eq '-') ? '' : "\n";
+ return join( $j, @multiline ) . $t;
+}
+
+# Parse an array
+sub _read_array {
+ my ($self, $array, $indent, $lines) = @_;
+
+ while ( @$lines ) {
+ # Check for a new document
+ if ( $lines->[0] =~ /^(?:---|\.\.\.)/ ) {
+ while ( @$lines and $lines->[0] !~ /^---/ ) {
+ shift @$lines;
+ }
+ return 1;
+ }
+
+ # Check the indent level
+ $lines->[0] =~ /^(\s*)/;
+ if ( length($1) < $indent->[-1] ) {
+ return 1;
+ } elsif ( length($1) > $indent->[-1] ) {
+ croak("YAML::Tiny found bad indenting in line '$lines->[0]'");
+ }
+
+ if ( $lines->[0] =~ /^(\s*\-\s+)[^\'\"]\S*\s*:(?:\s+|$)/ ) {
+ # Inline nested hash
+ my $indent2 = length("$1");
+ $lines->[0] =~ s/-/ /;
+ push @$array, { };
+ $self->_read_hash( $array->[-1], [ @$indent, $indent2 ], $lines );
+
+ } elsif ( $lines->[0] =~ /^\s*\-(\s*)(.+?)\s*\z/ ) {
+ # Array entry with a value
+ shift @$lines;
+ push @$array, $self->_read_scalar( "$2", [ @$indent, undef ], $lines );
+
+ } elsif ( $lines->[0] =~ /^\s*\-\s*\z/ ) {
+ shift @$lines;
+ unless ( @$lines ) {
+ push @$array, undef;
+ return 1;
+ }
+ if ( $lines->[0] =~ /^(\s*)\-/ ) {
+ my $indent2 = length("$1");
+ if ( $indent->[-1] == $indent2 ) {
+ # Null array entry
+ push @$array, undef;
+ } else {
+ # Naked indenter
+ push @$array, [ ];
+ $self->_read_array( $array->[-1], [ @$indent, $indent2 ], $lines );
+ }
+
+ } elsif ( $lines->[0] =~ /^(\s*)\S/ ) {
+ push @$array, { };
+ $self->_read_hash( $array->[-1], [ @$indent, length("$1") ], $lines );
+
+ } else {
+ croak("YAML::Tiny failed to classify line '$lines->[0]'");
+ }
+
+ } elsif ( defined $indent->[-2] and $indent->[-1] == $indent->[-2] ) {
+ # This is probably a structure like the following...
+ # ---
+ # foo:
+ # - list
+ # bar: value
+ #
+ # ... so lets return and let the hash parser handle it
+ return 1;
+
+ } else {
+ croak("YAML::Tiny failed to classify line '$lines->[0]'");
+ }
+ }
+
+ return 1;
+}
+
+# Parse an array
+sub _read_hash {
+ my ($self, $hash, $indent, $lines) = @_;
+
+ while ( @$lines ) {
+ # Check for a new document
+ if ( $lines->[0] =~ /^(?:---|\.\.\.)/ ) {
+ while ( @$lines and $lines->[0] !~ /^---/ ) {
+ shift @$lines;
+ }
+ return 1;
+ }
+
+ # Check the indent level
+ $lines->[0] =~ /^(\s*)/;
+ if ( length($1) < $indent->[-1] ) {
+ return 1;
+ } elsif ( length($1) > $indent->[-1] ) {
+ croak("YAML::Tiny found bad indenting in line '$lines->[0]'");
+ }
+
+ # Get the key
+ unless ( $lines->[0] =~ s/^\s*([^\'\" ][^\n]*?)\s*:(\s+|$)// ) {
+ if ( $lines->[0] =~ /^\s*[?\'\"]/ ) {
+ croak("YAML::Tiny does not support a feature in line '$lines->[0]'");
+ }
+ croak("YAML::Tiny failed to classify line '$lines->[0]'");
+ }
+ my $key = $1;
+
+ # Do we have a value?
+ if ( length $lines->[0] ) {
+ # Yes
+ $hash->{$key} = $self->_read_scalar( shift(@$lines), [ @$indent, undef ], $lines );
+ } else {
+ # An indent
+ shift @$lines;
+ unless ( @$lines ) {
+ $hash->{$key} = undef;
+ return 1;
+ }
+ if ( $lines->[0] =~ /^(\s*)-/ ) {
+ $hash->{$key} = [];
+ $self->_read_array( $hash->{$key}, [ @$indent, length($1) ], $lines );
+ } elsif ( $lines->[0] =~ /^(\s*)./ ) {
+ my $indent2 = length("$1");
+ if ( $indent->[-1] >= $indent2 ) {
+ # Null hash entry
+ $hash->{$key} = undef;
+ } else {
+ $hash->{$key} = {};
+ $self->_read_hash( $hash->{$key}, [ @$indent, length($1) ], $lines );
+ }
+ }
+ }
+ }
+
+ return 1;
+}
+
+# Set error
+sub _error {
+ $YAML::Tiny::errstr = $_[1];
+ undef;
+}
+
+# Retrieve error
+sub errstr {
+ $YAML::Tiny::errstr;
+}
+
+
+
+#####################################################################
+# Use Scalar::Util if possible, otherwise emulate it
+
+BEGIN {
+ eval {
+ require Scalar::Util;
+ };
+ if ( $@ ) {
+ # Failed to load Scalar::Util
+ eval <<'END_PERL';
+sub refaddr {
+ my $pkg = ref($_[0]) or return undef;
+ if (!!UNIVERSAL::can($_[0], 'can')) {
+ bless $_[0], 'Scalar::Util::Fake';
+ } else {
+ $pkg = undef;
+ }
+ "$_[0]" =~ /0x(\w+)/;
+ my $i = do { local $^W; hex $1 };
+ bless $_[0], $pkg if defined $pkg;
+ $i;
+}
+END_PERL
+ } else {
+ Scalar::Util->import('refaddr');
+ }
+}
+
+
+#####################################################################
+# main test
+#####################################################################
+
+package main;
+
+BEGIN {
+
+ # Skip modules that either don't want to be loaded directly, such as
+ # Module::Install, or that mess with the test count, such as the Test::*
+ # modules listed here.
+ #
+ # Moose::Role conflicts if Moose is loaded as well, but Moose::Role is in
+ # the Moose distribution and it's certain that someone who uses
+ # Moose::Role also uses Moose somewhere, so if we disallow Moose::Role,
+ # we'll still get the relevant version number.
+
+ my %skip = map { $_ => 1 } qw(
+ App::FatPacker
+ Class::Accessor::Classy
+ Devel::Cover
+ Module::Install
+ Moose::Role
+ POE::Loop::Tk
+ Template::Test
+ Test::Kwalitee
+ Test::Pod::Coverage
+ Test::Portability::Files
+ Test::YAML::Meta
+ );
+
+ my $Test = Test::Builder->new;
+
+ $Test->plan(skip_all => "META.yml could not be found")
+ unless -f 'META.yml' and -r _;
+
+ my $meta = (Local::YAML::Tiny->read('META.yml'))->[0];
+ my %requires;
+ for my $require_key (grep { /requires/ } keys %$meta) {
+ my %h = %{ $meta->{$require_key} };
+ $requires{$_}++ for keys %h;
+ }
+ delete $requires{perl};
+
+ diag("Testing with Perl $], $^X");
+ for my $module (sort keys %requires) {
+ if ($skip{$module}) {
+ note "$module doesn't want to be loaded directly, skipping";
+ next;
+ }
+ local $SIG{__WARN__} = sub { note "$module: $_[0]" };
+ use_ok $module or BAIL_OUT("can't load $module");
+ my $version = $module->VERSION;
+ $version = 'undefined' unless defined $version;
+ diag(" $module version is $version");
+ }
+ done_testing;
+}
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