rename Shim to ProducerUtils for accuracy

[dbsrgits/SQL-Translator.git] / lib / SQL / Translator / ProducerUtils.pm

diff --git a/lib/SQL/Translator/ProducerUtils.pm b/lib/SQL/Translator/ProducerUtils.pm
new file mode 100644 (file)
index 0000000..f90ff3a
--- /dev/null
+++ b/lib/SQL/Translator/ProducerUtils.pm
@@ -0,0 +1,51 @@
+package SQL::Translator::ProducerUtils;
+
+use Moo;
+use Sub::Quote 'quote_sub';
+
+# this should be ro, but I have to modify it in BUILD so bleh
+has quote_chars => ( is => 'rw' );
+
+has name_sep    => (
+   is => 'ro',
+   default => quote_sub q{ '.' },
+);
+
+sub BUILD {
+   my $self = shift;
+
+   unless (ref($self->quote_chars)) {
+      if ($self->quote_chars) {
+         $self->quote_chars([$self->quote_chars])
+      } else {
+         $self->quote_chars([])
+      }
+   }
+
+   $self
+}
+
+sub quote {
+  my ($self, $label) = @_;
+
+  return '' unless defined $label;
+  return $$label if ref($label) eq 'SCALAR';
+
+  my @quote_chars = @{$self->quote_chars};
+  return $label unless scalar @quote_chars;
+
+  my ($l, $r);
+  if (@quote_chars == 1) {
+    ($l, $r) = (@quote_chars) x 2;
+  } elsif (@quote_chars == 2) {
+    ($l, $r) = @quote_chars;
+  } else {
+    die 'too many quote chars!';
+  }
+
+  my $sep = $self->name_sep || '';
+  # parts containing * are naturally unquoted
+  join $sep, map "$l$_$r", ( $sep ? split (/\Q$sep\E/, $label ) : $label )
+}
+
+1;