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Annotation of 43BSDReno/pgrm/pascal/eyacc/eyacc.1, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1980, 1990 The Regents of the University of California.
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        !            18: .\"     @(#)eyacc.1    6.4 (Berkeley) 7/24/90
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        !            20: .Dd July 24, 1990
        !            21: .Dt EYACC 1
        !            22: .Os BSD 4
        !            23: .Sh NAME
        !            24: .Nm eyacc
        !            25: .Nd modified yacc allowing much improved error recovery
        !            26: .Sh SYNOPSIS
        !            27: .Nm eyacc
        !            28: .Op Fl v
        !            29: .Op Ar grammar
        !            30: .Sh DESCRIPTION
        !            31: .Nm Eyacc
        !            32: is an old version of
        !            33: .Xr yacc  1  ,
        !            34: which produces tables used by the Pascal system and its error recovery
        !            35: routines.
        !            36: .Nm Eyacc
        !            37: fully enumerates test actions in its parser when an error token
        !            38: is in the look-ahead set.
        !            39: This prevents the parser from making undesirable reductions
        !            40: when an error occurs before the error is detected.
        !            41: The table format is different in
        !            42: .Nm eyacc
        !            43: than it was in the old
        !            44: .Xr yacc 1 ,
        !            45: as minor changes had been made for efficiency reasons.
        !            46: .Sh SEE ALSO
        !            47: .Xr yacc 1
        !            48: .br
        !            49: .Em Practical LR Error Recovery
        !            50: by Susan L.  Graham, Charles B. Haley and W. N. Joy;
        !            51: SIGPLAN Conference on Compiler Construction,
        !            52: August 1979.
        !            53: .Sh HISTORY
        !            54: .Nm Eyacc
        !            55: appeared in 4.0 BSD.
        !            56: .Sh AUTHORS
        !            57: S. C. Johnson
        !            58: .br
        !            59: .Nm Eyacc
        !            60: modifications by Charles Haley and William Joy.
        !            61: .Sh BUGS
        !            62: .Xr Pc 1
        !            63: and its error recovery routines should be made into a library
        !            64: of routines for the new
        !            65: .Xr yacc 1 .

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