Initial commit

diff --git a/Makefile.PL b/Makefile.PL
new file mode 100644 (file)
index 0000000..a32a5fb
--- /dev/null
+++ b/Makefile.PL
@@ -0,0 +1,12 @@
+use strict;
+use warnings;
+
+use inc::Module::Install 0.79;
+
+requires 'Moose' => '0.71';
+requires 'MooseX::Method::Signatures' => '0.07';
+requires 'MooseX::Declare' => '0.04';
+
+test_requires 'Test::More';
+
+WriteAll;

diff --git a/lib/SQL/Abstract.pm b/lib/SQL/Abstract.pm
new file mode 100644 (file)
index 0000000..c5eafff
--- /dev/null
+++ b/lib/SQL/Abstract.pm
@@ -0,0 +1,70 @@
+use MooseX::Declare;
+use MooseX::Method::Signatures;
+
+
+class SQL::Abstract {
+
+  use Carp qw/croak/;
+  use Data::Dump qw/pp/;
+
+  use Moose::Util::TypeConstraints;
+  use MooseX::Types -declare => ['NameSeparator'];
+  use MooseX::Types::Moose qw/ArrayRef Str/;
+
+  subtype NameSeparator,
+    as ArrayRef[Str];
+    #where { @$_ == 1 ||| @$_ == 2 },
+    #message { "Name separator must be one or two elements" };
+
+  coerce NameSeparator, from Str, via { [ $_ ] };
+
+  our $VERSION = '2.000000';
+
+  our $AST_VERSION = '1';
+
+  has name_separator => ( 
+    is => 'rw', 
+    isa => NameSeparator,
+    default => sub { ['.'] },
+    coerece => 1,
+    required => 1,
+  );
+
+  has list_separator => ( 
+    is => 'rw', 
+    isa => Str,
+    default => ', ',
+    required => 1,
+  );
+
+  method generate (ArrayRef $ast) {
+    $self = new $self unless blessed($self);
+
+    local $_ = $ast->[0];
+    s/^-/_/ or croak "Unknown type tag '$_'";
+    return $self->$_($ast);
+  }
+
+  method _name(ArrayRef[Str] $ast) {
+    my (undef, @names) = @$ast;
+
+    my $sep = $self->name_separator;
+
+    return $sep->[0] . 
+           join( $sep->[1] . $sep->[0], @names ) . 
+           $sep->[1]
+              if (@$sep > 1);
+
+    return join($sep->[0], @names);
+  }
+
+  method _list(ArrayRef $ast) {
+    my (undef, @items) = @$ast;
+
+    return join(
+      $self->list_separator,
+      map { $self->generate($_) } @items);
+    
+  }
+
+};

diff --git a/t/001_basic.t b/t/001_basic.t
new file mode 100644 (file)
index 0000000..9a6dc39
--- /dev/null
+++ b/t/001_basic.t
@@ -0,0 +1,18 @@
+use strict;
+use warnings;
+
+use Test::More tests => 3;
+
+use_ok('SQL::Abstract') or BAIL_OUT( "$@" );
+
+is SQL::Abstract->generate( [ -name => qw/me id/]), "me.id",
+  "Simple name generator";
+
+is SQL::Abstract->generate(
+  [ -list => 
+    [ -name => qw/me id/],
+    [ -name => qw/me foo bar/],
+    [ -name => qw/bar/]
+  ] 
+), "me.id, me.foo.bar, bar",
+  "List generator";