And another example of this, but not using macros, would be Rebol's parse which is a top-down parsing dialect (internal DSL) within Rebol. ref: http://en.wikip

And another example of this, but not using macros, would be Rebol's parse which is a top-down parsing dialect (internal DSL) within Rebol. ref: http://en.wikipedia.org/wiki/Rebol#parse http://en.wikipedia.org/wiki/Rebol#parse