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version 1.6, 2022/01/27 16:58:37 version 1.7, 2023/09/17 14:49:44
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 # The One True Awk  # The One True Awk
   
 This is the version of `awk` described in _The AWK Programming Language_,  This is the version of `awk` described in _The AWK Programming Language_,
 by Al Aho, Brian Kernighan, and Peter Weinberger  Second Edition, by Al Aho, Brian Kernighan, and Peter Weinberger
 (Addison-Wesley, 1988, ISBN 0-201-07981-X).  (Addison-Wesley, 2024, ISBN-13 978-0138269722, ISBN-10 0138269726).
   
   ## What's New? ##
   
   This version of Awk handles UTF-8 and comma-separated values (CSV) input.
   
   ### Strings ###
   
   Functions that process strings now count Unicode code points, not bytes;
   this affects `length`, `substr`, `index`, `match`, `split`,
   `sub`, `gsub`, and others.  Note that code
   points are not necessarily characters.
   
   UTF-8 sequences may appear in literal strings and regular expressions.
   Aribtrary characters may be included with `\u` followed by 1 to 8 hexadecimal digits.
   
   ### Regular expressions ###
   
   Regular expressions may include UTF-8 code points, including `\u`.
   Character classes are likely to be limited to about 256 characters
   when expanded.
   
   ### CSV ###
   
   The option `--csv` turns on CSV processing of input:
   fields are separated by commas, fields may be quoted with
   double-quote (`"`) characters, fields may contain embedded newlines.
   In CSV mode, `FS` is ignored.
   
   If no explicit separator argument is provided,
   field-splitting in `split` is determined by CSV mode.
   
 ## Copyright  ## Copyright
   
 Copyright (C) Lucent Technologies 1997<br/>  Copyright (C) Lucent Technologies 1997<br/>
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 which should produce a sequence of messages roughly like this:  which should produce a sequence of messages roughly like this:
   
         yacc -d awkgram.y          bison -d  awkgram.y
         conflicts: 43 shift/reduce, 85 reduce/reduce          awkgram.y: warning: 44 shift/reduce conflicts [-Wconflicts-sr]
         mv y.tab.c ytab.c          awkgram.y: warning: 85 reduce/reduce conflicts [-Wconflicts-rr]
         mv y.tab.h ytab.h          awkgram.y: note: rerun with option '-Wcounterexamples' to generate conflict counterexamples
         cc -c ytab.c          gcc -g -Wall -pedantic -Wcast-qual   -O2   -c -o awkgram.tab.o awkgram.tab.c
         cc -c b.c          gcc -g -Wall -pedantic -Wcast-qual   -O2   -c -o b.o b.c
         cc -c main.c          gcc -g -Wall -pedantic -Wcast-qual   -O2   -c -o main.o main.c
         cc -c parse.c          gcc -g -Wall -pedantic -Wcast-qual   -O2   -c -o parse.o parse.c
         cc maketab.c -o maketab          gcc -g -Wall -pedantic -Wcast-qual -O2 maketab.c -o maketab
         ./maketab >proctab.c          ./maketab awkgram.tab.h >proctab.c
         cc -c proctab.c          gcc -g -Wall -pedantic -Wcast-qual   -O2   -c -o proctab.o proctab.c
         cc -c tran.c          gcc -g -Wall -pedantic -Wcast-qual   -O2   -c -o tran.o tran.c
         cc -c lib.c          gcc -g -Wall -pedantic -Wcast-qual   -O2   -c -o lib.o lib.c
         cc -c run.c          gcc -g -Wall -pedantic -Wcast-qual   -O2   -c -o run.o run.c
         cc -c lex.c          gcc -g -Wall -pedantic -Wcast-qual   -O2   -c -o lex.o lex.c
         cc ytab.o b.o main.o parse.o proctab.o tran.o lib.o run.o lex.o -lm          gcc -g -Wall -pedantic -Wcast-qual   -O2 awkgram.tab.o b.o main.o parse.o proctab.o tran.o lib.o run.o lex.o   -lm
   
 This produces an executable `a.out`; you will eventually want to  This produces an executable `a.out`; you will eventually want to
 move this to some place like `/usr/bin/awk`.  move this to some place like `/usr/bin/awk`.
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 You can also use `make CC=g++` to build with the GNU C++ compiler,  You can also use `make CC=g++` to build with the GNU C++ compiler,
 should you choose to do so.  should you choose to do so.
   
 The version of `malloc` that comes with some systems is sometimes  
 astonishly slow.  If `awk` seems slow, you might try fixing that.  
 More generally, turning on optimization can significantly improve  
 `awk`'s speed, perhaps by 1/3 for highest levels.  
   
 ## A Note About Releases  ## A Note About Releases
   
 We don't usually do releases.  We don't usually do releases.
   
 ## A Note About Maintenance  ## A Note About Maintenance
   
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 #### Last Updated  #### Last Updated
   
 Sun 23 Jan 2022 03:48:01 PM EST  Sun Sep  3 09:26:43 EDT 2023
   
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