2024-03-29T11:12:41Zhttps://ipsj.ixsq.nii.ac.jp/ej/?action=repository_oaipmhoai:ipsj.ixsq.nii.ac.jp:000602152017-03-31T05:37:45Z05550:05557
On the Formal Grammatical Structure of ALGOL 60On the Formal Grammatical Structure of ALGOL 60enghttp://id.nii.ac.jp/1001/00060215/Articlehttps://ipsj.ixsq.nii.ac.jp/ej/?action=repository_action_common_download&item_id=60215&item_no=1&attribute_id=1&file_no=1Copyright (c) 1971 by the Information Processing Society of JapanElectrotechnical LaboratoryMakoto, ArisawaNaur described the syntax of ALGOL 60 using BNF notation.In this paper the formal grammatical structure of this description is investigated.This description seems not to be convenient for computer's use because there are a lot of redundant variables and rules which are intended to be man's use.All the variables can be classified into three groups and we can represent the syntax structure using regular expressions in each group.Naur described the syntax of ALGOL 60 using BNF notation.In this paper,the formal grammatical structure of this description is investigated.This description seems not to be convenient for computer's use,because there are a lot of redundant variables and rules which are intended to be man's use.All the variables can be classified into three groups,and we can represent the syntax structure using regular expressions in each group.AA00674393Information Processing in Japan11030371971-01-012009-06-30