adb545a48e
This is the original New AWK from AT&T Labs as described in "The AWK Programming Language", by Al Aho, Brian Kernighan, and Peter Weinberger. This would eventually replace gawk in our tree in future.
84 lines
3.3 KiB
Plaintext
84 lines
3.3 KiB
Plaintext
/****************************************************************
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Copyright (C) Lucent Technologies 1997
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All Rights Reserved
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Permission to use, copy, modify, and distribute this software and
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its documentation for any purpose and without fee is hereby
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granted, provided that the above copyright notice appear in all
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copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name Lucent Technologies or any of
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its entities not be used in advertising or publicity pertaining
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to distribution of the software without specific, written prior
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permission.
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LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
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IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
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SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
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IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
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THIS SOFTWARE.
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****************************************************************/
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This is the version of awk described in "The AWK Programming Language",
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by Al Aho, Brian Kernighan, and Peter Weinberger
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(Addison-Wesley, 1988, ISBN 0-201-07981-X).
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Changes, mostly bug fixes and occasional enhancements, are listed
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in FIXES. If you distribute this code further, please please please
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distribute FIXES with it. If you find errors, please report them
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to bwk@bell-labs.com. Thanks.
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The program itself is created by
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make
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which should produce a sequence of messages roughly like this:
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yacc -d awkgram.y
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conflicts: 43 shift/reduce, 85 reduce/reduce
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mv y.tab.c ytab.c
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mv y.tab.h ytab.h
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cc -O -c ytab.c
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cc -O -c b.c
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cc -O -c main.c
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cc -O -c parse.c
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cc -O maketab.c -o maketab
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./maketab >proctab.c
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cc -O -c proctab.c
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cc -O -c tran.c
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cc -O -c lib.c
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cc -O -c run.c
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cc -O -c lex.c
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cc -O ytab.o b.o main.o parse.o proctab.o tran.o lib.o run.o lex.o -lm
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This produces an executable a.out; you will eventually want to
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move this to some place like /usr/bin/awk.
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If your system is does not have yacc or bison (the GNU
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equivalent), you must compile the pieces manually. We have
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included yacc output in ytab.c and ytab.h, and backup copies in
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case you overwrite them. We have also included a copy of
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proctab.c so you do not need to run maketab.
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NOTE: This version uses ANSI C, as you should also. We have
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compiled this without any changes using gcc -Wall and/or local C
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compilers on a variety of systems, but new systems or compilers
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may raise some new complaint; reports of difficulties are
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welcome.
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This also compiles with Visual C++ on Windows 95 and Windows NT,
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*if* you provide versions of popen and pclose. The file
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missing95.c contains versions that can be used to get started
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with, though the underlying support has mysterious properties,
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the symptom of which can be truncated pipe output. Beware.
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This is also said to compile on Macintosh systems, using the
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file "buildmac" provided by Dan Allen (danallen@microsoft.com),
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to whom many thanks. Dan also provided buildwin.bat, a simple
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script for compiling on NT if you prefer.
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The version of malloc that comes with some systems is sometimes
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astonishly slow. If awk seems slow, you might try fixing that.
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