I realize the author's intention and the fact that this was written in a "bottom-up" style, but one has to be careful when using "bottom-up" in the world of com

I realize the author's intention and the fact that this was written in a "bottom-up" style, but one has to be careful when using "bottom-up" in the world of compilers. It can also refer to the type of algorithm used in parsing. For instance, yacc generates parsers for LR grammars in a bottom-up style, meaning it builds the parse tree upon discovery, not upon expectation such as a top-down parser for an LL grammar.