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Annotation of src/usr.bin/awk/README, Revision 1.1

1.1     ! tholo       1: /****************************************************************
        !             2: Copyright (C) AT&T and Lucent Technologies 1996
        !             3: All Rights Reserved
        !             4:
        !             5: Permission to use, copy, modify, and distribute this software and
        !             6: its documentation for any purpose and without fee is hereby
        !             7: granted, provided that the above copyright notice appear in all
        !             8: copies and that both that the copyright notice and this
        !             9: permission notice and warranty disclaimer appear in supporting
        !            10: documentation, and that the names of AT&T or Lucent Technologies
        !            11: or any of their entities not be used in advertising or publicity
        !            12: pertaining to distribution of the software without specific,
        !            13: written prior permission.
        !            14:
        !            15: AT&T AND LUCENT DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
        !            16: SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
        !            17: FITNESS. IN NO EVENT SHALL AT&T OR LUCENT OR ANY OF THEIR
        !            18: ENTITIES BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
        !            19: DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
        !            20: DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
        !            21: OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
        !            22: USE OR PERFORMANCE OF THIS SOFTWARE.
        !            23: ****************************************************************/
        !            24:
        !            25: This is the version of awk described in "The AWK Programming Language",
        !            26: by A. V. Aho, B. W. Kernighan, and P. J. Weinberger
        !            27: (Addison-Wesley, 1988, ISBN 0-201-07981-X).
        !            28: Changes, mostly bug fixes and occasional enhancements, are listed
        !            29: in FIXES.  If you distribute this code further, please please please
        !            30: distribute FIXES with it.  If you find errors, please report them
        !            31: to bwk@bell-labs.com.  Thanks.
        !            32:
        !            33: The program itself is created by
        !            34:        make
        !            35: which should produce a longish sequence of messages roughly like this:
        !            36:
        !            37:         yacc -d awkgram.y
        !            38:
        !            39: conflicts: 43 shift/reduce, 85 reduce/reduce
        !            40:         mv y.tab.c ytab.c
        !            41:         mv y.tab.h ytab.h
        !            42:         cc -O -c ytab.c
        !            43:         cmp -s ytab.h prevytab.h || (cp ytab.h prevytab.h; echo change maketab)
        !            44: change maketab
        !            45:         cc -O -c b.c
        !            46:         cc -O -c main.c
        !            47:         cc -O -c parse.c
        !            48:         cc -O maketab.c -o maketab
        !            49:         ./maketab >proctab.c
        !            50:         cc -O -c proctab.c
        !            51:         cc -O -c tran.c
        !            52:         cc -O -c lib.c
        !            53:         cc -O -c run.c
        !            54:         lex awklex.l
        !            55:         mv lex.yy.c lexyy.c
        !            56:         cc -O -c lexyy.c
        !            57:         cc -O ytab.o lexyy.o b.o main.o parse.o proctab.o tran.o lib.o run.o   -lm
        !            58:
        !            59: This produces an executable a.out;  you will eventually
        !            60: want to move this to some place like /usr/bin/awk.
        !            61:
        !            62: If your system is missing some of the components, e.g., yacc or lex,
        !            63: you should be able to compile the pieces manually.  We have included
        !            64: yacc output in ytab.c and ytab.h, and lex output in lexyy.c.
        !            65:
        !            66: NOTE: This version uses ANSI C, as you should also.
        !            67:
        !            68: The version of malloc that comes with some systems (e.g., IRIX) is
        !            69: astonishly slow.  If awk seems slow, you might try fixing that.