SQLTemplateParser#extractAllParameters doesn't support SQLs using non-ascii characters?

[emag]

It looks like SQLTemplateParser#extractAllParameters doesn't work against SQLs contain non-ascii characters.

The following test will fail because the returned params are empty.

it should "support SQL contains non-ascii characters" in {
  val sql = "SELECT * FROM ユーザ WHERE user_id = {id})"
  val params = SQLTemplateParser.extractAllParameters(sql)
  params.size should equal(1)
  params.head should equal('id)
}

[seratch]

Having multibyte characters in literal expressions like 'ユーザ' is supported but I didn't expect the case that table names can be those.

For now, I don't have strong motivation to work on this. If you need the support for the cases, could you make a pull request?