This reminds me of how I wrote a simple query language which can be written inside HTML attribute tags. Its killer feature is that it doesn't need quotation mar

This reminds me of how I wrote a simple query language which can be written inside HTML attribute tags. Its killer feature is that it doesn't need quotation marks to represent strings. It knows if something is a property/variable or a string (e.g. user input) just based on its position in the command. It achieves this by being very strict with spaces. It doesn't collapse/merge multiple spaces down to one because this can wreck edge cases where a user input string might start with a space.