资料来源 : Free On-Line Dictionary of Computing

grammar analysis
     
        A program written in {ABC} for answering such questions as
        "what are the start symbols of all rules", "what symbols can
        follow this symbol", "which rules are left recursive", and so
        on.  Includes a grammar of {ISO Pascal}.
     
        Version 1 by Steven Pemberton .
        Ports to {Unix}, {MS-DOS}, {Atari}, {Macintosh}.  FTP:
        ftp.eu.net, ftp.nluug.net
        programming/languages/abc/examples/grammar/.
     
        (1993-07-05)