出典:Wikipedia
出典:『Wikipedia』 (2011/02/08 00:59 UTC 版)
ECLR-attributed grammars are a special type of attribute grammars. They are a variant of LR-attributed grammars where an equivalence relation on inherited attributes is used to optimize attribute evaluation. EC stands for equivalence class. Rie is based on ECLR-attributed grammars. They are a superset of LR-attributed grammars.