August 1997 version of "the one true awk"

1 files changed, 84 insertions, 17 deletions

diff --git a/usr.bin/awk/FIXES b/usr.bin/awk/FIXES
index 8e8cc6047df..20ab0d20d41 100644
--- a/usr.bin/awk/FIXES
+++ b/usr.bin/awk/FIXES
@@ -1,6 +1,6 @@
-/*	$OpenBSD: FIXES,v 1.5 1997/01/24 23:43:09 kstailey Exp $	*/
+/*	$OpenBSD: FIXES,v 1.6 1997/08/25 16:17:07 kstailey Exp $	*/
 /****************************************************************
-Copyright (C) AT&T and Lucent Technologies 1996
+Copyright (C) Lucent Technologies 1997
 All Rights Reserved
 
 Permission to use, copy, modify, and distribute this software and
@@ -8,19 +8,19 @@ its documentation for any purpose and without fee is hereby
 granted, provided that the above copyright notice appear in all
 copies and that both that the copyright notice and this
 permission notice and warranty disclaimer appear in supporting
-documentation, and that the names of AT&T or Lucent Technologies
-or any of their entities not be used in advertising or publicity
-pertaining to distribution of the software without specific,
-written prior permission.
-
-AT&T AND LUCENT DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
-SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS. IN NO EVENT SHALL AT&T OR LUCENT OR ANY OF THEIR
-ENTITIES BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
-DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
-DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
-OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE
-USE OR PERFORMANCE OF THIS SOFTWARE.
+documentation, and that the name Lucent Technologies or any of
+its entities not be used in advertising or publicity pertaining
+to distribution of the software without specific, written prior
+permission.
+
+LUCENT DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
+IN NO EVENT SHALL LUCENT OR ANY OF ITS ENTITIES BE LIABLE FOR ANY
+SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER
+IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
+THIS SOFTWARE.
 ****************************************************************/
 
 This file lists all bug fixes, changes, etc., made since the AWK book
@@ -476,5 +476,72 @@ Jun 29, 1996:
 	fixed awful bug in new field splitting; didn't get all the places
 	where input was done.
 
-Jan 21, 1997
-	Fixed %c:  works if the value is 0 -- now prints \0.
+Jul 8, 1996:
+	fixed long-standing bug in sub, gsub(/a/, "\\\\&"); thanks to
+	ralph corderoy.
+
+Jun 17, 1997:
+	replaced several fixed-size arrays by dynamically-created ones
+	in run.c; added overflow tests to some previously unchecked cases.
+	getline, toupper, tolower.
+
+	getline code is still broken in that recursive calls may wind
+	up using the same space.  [fixed later]
+
+	increased RECSIZE to 8192 to push problems further over the horizon.
+
+	added \r to \n as input line separator for programs, not data.
+	damn CRLFs.
+
+	modified format() to permit explicit printf("%c", 0) to include
+	a null byte in output.  thanks to ken stailey for the fix.
+
+	added a "-safe" argument that disables file output (print >,
+	print >>), process creation (cmd|getline, print |, system), and
+	access to the environment (ENVIRON).  this is a first approximation
+	to a "safe" version of awk, but don't rely on it too much.  thanks
+	to joan feigenbaum and matt blaze for the inspiration long ago.
+
+Jul 23, 1997:
+	falling off the end of a function returns "" and 0, not 0.
+	thanks to arnold robbins.
+
+Jul 30, 1997:
+	using code provided by dan levy (to whom profuse thanks), replaced
+	fixed-size arrays and awkward kludges by a fairly uniform mechanism
+	to grow arrays as needed for printf, sub, gsub, etc.
+
+Aug 4, 1997:
+	with some trepidation, replaced the ancient code that managed
+	fields and $0 in fixed-size arrays with arrays that grow on
+	demand.  there is still some tension between trying to make this
+	run fast and making it clean; not sure it's right yet.
+
+	the ill-conceived -mr and -mf arguments are now useful only
+	for debugging.  previous dynamic string code removed.
+
+	numerous other minor cleanups along the way.
+
+Aug 9, 1997:
+	somewhat regretfully, replaced the ancient lex-based lexical
+	analyzer with one written in C.  it's longer, generates less code,
+	and more portable; the old one depended too much on mysterious
+	properties of lex that were not preserved in other environments.
+	in theory these recognize the same language.
+
+	now using strtod to test whether a string is a number, instead of
+	the convoluted original function.  should be more portable and
+	reliable if strtod is implemented right.
+
+	removed now-pointless optimization in makefile that tries to avoid
+	recompilation when awkgram.y is changed but symbols are not.
+
+	removed most fixed-size arrays, though a handful remain, some
+	of which are unchecked.  you have been warned.
+
+Aug 21, 1997:
+	fixed some bugs in sub and gsub when replacement includes \\.
+	this is a dark, horrible corner, but at least now i believe that
+	the behavior is the same as gawk and the intended posix standard.
+	thanks to arnold robbins for advice here.
+