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U.S. Department of Energy
Office of Scientific and Technical Information

FRED: a program development tool

Technical Report ·
OSTI ID:5141603
The structured, screen-based editor FRED is introduced. FRED provides incremental parsing and semantic analysis. The parsing is based on an LL(1) top-down algorithm which has been modified to provide follow-the-cursor parsing and soft templates. The languages accepted by the editor are LL(1) languages with the addition of the Unknown and preferred production non-terminal classes. The semantic analysis is based on the incremental update of attribute grammar equations. We briefly describe the interface between FRED and an automated reference librarian system that is under development.
Research Organization:
Illinois Univ., Urbana (USA). Dept. of Computer Science
DOE Contract Number:
AC02-76ER02383
OSTI ID:
5141603
Report Number(s):
UIUCDCS-R-85-1224; UILU-ENG-85-1736; COO-2383-0111; ON: DE86000857
Country of Publication:
United States
Language:
English

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