That syntax is too loose for my taste. WSL's approach is different; it tries to be as strict as possible. There should be preferably one and only one representa

That syntax is too loose for my taste. WSL's approach is different; it tries to be as strict as possible. There should be preferably one and only one representation for any given value. To be also syntactically efficient it has per-domain lexical syntax. This would not be possible without a schema.