PASCAL LR(1) Parser Generator System

Software · Wed May 04 00:00:00 EDT 1988

DOI:https://doi.org/10.11578/dc.20180618.4· OSTI ID:1230165 · Code ID:12136

O'Hair, Kelly

LRSYS is a complete LR(1) parser generator system written entirely in a portable subset of Pascal. The system, LRSYS, includes a grammar analyzer program (LR) which reads a context-free (BNF) grammar as input and produces LR(1) parsing tables as output, a lexical analyzer generator (LEX) which reads regular expressions created by the REG process as input and produces lexical tables as output, and various parser skeletons that get merged with the tables to produce complete parsers (SMAKE). Current parser skeletons include Pascal, FORTRAN 77, and C. Other language skeletons can easily be added to the system. LRSYS is based on the LR program.

• Short Name / Acronym: LRSYS
• Project Type: Closed Source
• Site Accession Number: 1353
• Software Type: Scientific
• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: DOE/DP

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  Primary Award/Contract Number:

  W-7405-ENG-48
• DOE Contract Number: W-7405-ENG-48
• Code ID: 12136
• OSTI ID: 1230165
• Country of Origin: United States