JPS649529A - System for forming syntactic structure tree - Google Patents

System for forming syntactic structure tree

Info

Publication number
JPS649529A
JPS649529A JP16567787A JP16567787A JPS649529A JP S649529 A JPS649529 A JP S649529A JP 16567787 A JP16567787 A JP 16567787A JP 16567787 A JP16567787 A JP 16567787A JP S649529 A JPS649529 A JP S649529A
Authority
JP
Japan
Prior art keywords
compiler
syntactic structure
structure tree
changed
syntax
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP16567787A
Other languages
Japanese (ja)
Inventor
Yuzo Iida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP16567787A priority Critical patent/JPS649529A/en
Publication of JPS649529A publication Critical patent/JPS649529A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To form a correct syntactic structure tree after a syntax is added or changed by only by updating the contents of a compiler even when the syntax is added or changed to the compiler by using the syntax analyzing procedure of the compiler. CONSTITUTION:Respective sentences constituting a source program 5 are decomposed to basic language elements for discriminating the respective syntactic structures according to the syntax analyzing procedure 1 of the compiler, these basic language elements are respectively changed to simple symbols and the source program 5 is changed to compiler translating information transformed to the permutation of the symbols. Then, the compiler translating information transformed to the permutation of the symbols is taken out from the compiler according to the taking out procedure 2 of the compiler translating information and used in a next syntactic structure tree forming procedure 3. In the syntactic structure tree forming procedure 3, the syntactic structure tree capable of representing the syntactic structure determined as a source program language for the compiler is formed. Thereby, only by updating the contents of the compiler, the correct syntactic structure tree after the syntax is added or changed can be formed.
JP16567787A 1987-07-01 1987-07-01 System for forming syntactic structure tree Pending JPS649529A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16567787A JPS649529A (en) 1987-07-01 1987-07-01 System for forming syntactic structure tree

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16567787A JPS649529A (en) 1987-07-01 1987-07-01 System for forming syntactic structure tree

Publications (1)

Publication Number Publication Date
JPS649529A true JPS649529A (en) 1989-01-12

Family

ID=15816938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16567787A Pending JPS649529A (en) 1987-07-01 1987-07-01 System for forming syntactic structure tree

Country Status (1)

Country Link
JP (1) JPS649529A (en)

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