Appetizers Before Parsing: Serving Order
When preparing a Context-Free Grammar (CFG) for parsing, especially for top-down parsers like LL parsers, the following 4 CFG preprocessing procedures are be...
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Appetizer #4 Before Parsing: Left Factoring
Why factor?
Appetizer #1 Before Parsing: CFG Simplification
0. Overview
Bijection -> Isomorphism / Homeomorphism / Isometry
学得有点杂，这些概念其实都有 cover，这里总结一下：
Python: Import Enum Uniformly before Comparison
This is not considered a bug in Enum but it’s quite subtle indeed.
Ken Thompson’s NFA Simulation Algorithm
0. Retrospect