adding better tooling

5 files changed, 1182 insertions, 5 deletions

diff --git a/.SRCINFO b/.SRCINFO
index d21589bf89f8..1dafa7503079 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,12 +1,16 @@
 pkgbase = mawk
 	pkgdesc = An interpreter for the AWK Programming Language
 	pkgver = 1.3.4_20231102
-	pkgrel = 1
+	pkgrel = 2
 	url = http://invisible-island.net/mawk/
+	changelog = changelog.txt
 	arch = i686
 	arch = x86_64
 	license = GPL
 	depends = glibc
+	options = strip
+	options = emptydirs
+	options = zipman
 	source = https://invisible-island.net/archives/mawk/mawk-1.3.4-20231102.tgz
 	b2sums = c423381900be429dcfb117df3ceb72dc942aec6e85ea94e59b2fef1b92445620cff3205fb55be1ddee2bfba9597a1c68ed2f41bb155a1cc6791df0f6de75b44b
 
diff --git a/.gitignore b/.gitignore
index f71c635dafda..6f29b0abf773 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
 *
 !.gitignore
+!Makefile
 !PKGBUILD
 !.SRCINFO
+!changelog.txt
diff --git a/Makefile b/Makefile
new file mode 100644
index 000000000000..6ee1a3dc8e82
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,81 @@
+MAKEFLAGS += --warn-undefined-variables
+SHELL=/bin/bash
+
+VERSION = $(shell grep pkgver .SRCINFO | cut -d '=' -f 2 | tr -d '[:space:]')
+TRASH = $(shell git check-ignore * | tr '\n' ' ')
+
+# DEFAULT
+all: clean log sum build check pre clean
+
+# just build the package
+build:
+	makepkg -sfr
+
+# build and install the package
+install:
+	makepkg --install
+
+# update checksums
+sum:
+	updpkgsums
+
+# check/lint
+check:
+	@echo "shellcheck: "
+	shellcheck -e SC2148 -e SC2034 PKGBUILD || exit 0
+
+	@echo "shell formate: "
+	shfmt -d PKGBUILD || exit 0
+
+	@echo "checking PKGBUILD: "
+	namcap -i PKGBUILD
+
+	@echo "checking build: "
+	namcap -i *.pkg.*
+
+# clean up the mess
+clean:
+ifeq ($(strip $(TRASH)),)
+	@echo "nothing to clear"
+else
+	file $(TRASH)
+	@echo -n "Are you sure? [Y/n] " && read ans && if [ $${ans:-'Y'} = 'Y' ]; then \
+        trash-put -v $(TRASH) ; \
+        exit 0 ; \
+    fi
+endif
+
+# generate `changelog.md`
+log:
+	@echo "wait, it will take some time"
+	curl "https://invisible-island.net/mawk/CHANGES" --output changelog.txt
+
+# prepare for commit
+pre:
+	shfmt -w PKGBUILD
+	makepkg --printsrcinfo > .SRCINFO
+
+	git diff
+
+	git add PKGBUILD
+	git add changelog.txt
+	git add .SRCINFO
+	git add .gitignore
+	git add Makefile
+
+# commit with version bump message
+commit:
+	$(eval VERSION := $(shell read -p "enter version (pkgver=$(VERSION)): " enter ; echo $${enter}))
+	@echo "commit message: \"updating to v$(VERSION)\""
+
+	@echo -n "Are you sure? [Y/n] " && read ans && if [ $${ans:-'Y'} = 'Y' ]; then \
+        git diff --cached ; \
+        exit 0 ; \
+    fi
+
+	@echo -n "Are you sure? [Y/n] " && read ans && if [ $${ans:-'Y'} = 'Y' ]; then \
+        git commit -m "updating to v$(VERSION)" ; \
+        exit 0 ; \
+    fi
+
+	@echo "recheck everything before pushing to AUR"
diff --git a/PKGBUILD b/PKGBUILD
index 5ecb42dc564a..8d7e1c7a0e98 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -5,7 +5,7 @@
 
 pkgname=mawk
 pkgver=1.3.4_20231102
-pkgrel=1
+pkgrel=2
 
 pkgdesc="An interpreter for the AWK Programming Language"
 arch=('i686' 'x86_64')
@@ -13,20 +13,22 @@ url="http://invisible-island.net/mawk/"
 license=('GPL')
 
 depends=('glibc')
+options=(strip emptydirs zipman)
+changelog="changelog.txt"
 
 source=("https://invisible-island.net/archives/$pkgname/$pkgname-${pkgver//_/-}.tgz")
 b2sums=('c423381900be429dcfb117df3ceb72dc942aec6e85ea94e59b2fef1b92445620cff3205fb55be1ddee2bfba9597a1c68ed2f41bb155a1cc6791df0f6de75b44b')
 
 build() {
-	cd $pkgname-${pkgver/_/-}
+	cd $pkgname-${pkgver/_/-} || exit
 	sed -ie 's|log()|log(1.0)|g' configure
 	sed -ie "s|trap  *0|trap 'exit 0' 0|g" test/*
 	./configure
-	make -j1
+	make
 }
 
 package() {
-	cd $pkgname-${pkgver/_/-}
+	cd $pkgname-${pkgver/_/-} || exit
 	install -d "$pkgdir"/usr/bin
 	install -d "$pkgdir"/usr/share/man/man1
 	make BINDIR="$pkgdir"/usr/bin MANDIR="$pkgdir"/usr/share/man/man1 install
diff --git a/changelog.txt b/changelog.txt
new file mode 100644
index 000000000000..1510417f127c
--- /dev/null
+++ b/changelog.txt
@@ -0,0 +1,1088 @@
+-- $MawkId: CHANGES,v 1.366 2023/11/02 23:27:07 tom Exp $
+
+20231102
+	+ environment-fixes for building with Solaris 10.
+
+20231101
+	+ repair parsing for comma-separated -W options used in "#" lines
+	  (report by Leif Baron).
+	+ updated makedeps.sh and examples/deps.awk, to update Makefile.in
+	+ remove obsolete/incorrect zero-termination assignment from fillbuff()
+	  (Original-Mawk #71).
+	+ updated configure macros
+	+ update config.guess and config.sub
+
+20230816
+	+ start work on _CALLX
+	+ da.c:  replace most of the string-literals in fprintf's with result
+	  from da_op_name()
+	+ da.c, mawk.h:  simplify ifdef for da_op_name(), to reuse in
+	  refactoring of _CALL
+	+ da.c:  dumping the function name in front of the offset is
+	  distracting, use just "@"
+	+ da.c: make the trace show offsets like the -Wdump option
+	+ da.c:  add traces to show which function is being dumped (and
+	  possibly patched).  this improves on the fix for dump_funcs() as well,
+	  freeing the linked-list
+	+ code.c: fix a use-after-free when no-leaks and traces are combined.
+	+ code.c: add trace to be_setup()
+	+ parse.y: make trace message consistent with fcall.c
+	+ execute.c: eliminate a couple of comparisons
+	+ change SYMTAB_TYPES to mixed enum/masks, to reduce comparisons for
+	  array types.
+	+ some cleanup, using NUM_ARGS and SYM_TYPE typedefs.
+
+20230808
+	+ modify input buffer-resizing to improve performance with very long
+	  longs (report/testcase by Leif LeBaron).
+
+20230804
+	> fixes for nulls (patches by Miguel Pineiro Jr).
+	  + support nulls in toupper() and tolower().
+	  + modify str_str() to ensure lengths for key/target are large enough
+	    for the memcmp() call.
+	+ treat special case of failure to open input file due to too many open
+	  files as a fatal error (report/testcase by Christoph Brunhuber).
+	+ fix a shift/reduce conflict for length vs length()
+	+ quote string-parameter in a few error-messages
+	+ add MinGW-code for system() calls (Original-Mawk #51).
+
+20230730
+	+ rexp.c: do not unroll repetition into loops if the repetition applies
+	  to more than one character.
+	+ rexp3.c: increment machine on completing M_2JC step to fix a case
+	  with infinite loop.
+	+ print.c: improve parameter-passing, eliminating a duplicate check.
+
+20230726
+	+ modify makefile to install mawk-array and mawk-code manpages.
+
+20230725
+	+ use da_string more consistently in dumps.
+	+ improve scanner to some type-checks of arrays versus scalars by
+	  deferring this into the runtime execution (report by Rajeev V Pillai).
+
+20230716
+	+ modify scanner to accommodate scripts which use the same name for
+	  some function-parameters as for a function (report by Kaz Kylheku).
+	+ amend/limit special case optimization for redundant wildwards
+	  (Original-Mawk #36).
+	+ regenerate parse.c using byacc 20230521
+
+20230525
+	+ fix a regression for big-endian machines caused by mismatch between
+	  printf/sprintf format and long integer types (Original-Mawk #69, cf:
+	  20200731).
+
+20230404
+	+ add a null-pointer check in bi_mktime() (Original-Mawk #57).
+	+ cast parameter of srand() to double if it is not already (patch by
+	  "q3cpma", Original-Mawk #66).   
+	+ manpage fixes (report/suggested by David Apps).
+	+ fix parsing of "--" token on command-line, from 20200828 changes
+	  (report by Pavel Vinogradov).
+	+ add a null-pointer check in the case for "-W" when parsing command
+	  options (Original-Mawk #68).
+	+ improve CF_XOPEN_SOURCE configure macro to avoid clearing the host's
+	  definition for _XOPEN_SOURCE if _POSIX_C_SOURCE is defined (report
+	  by A. Wilcox).
+	+ modify makefile "clean" rule to remove ".i" files.
+	+ modify configure script to allow for using clock_gettime vs
+	  gettimeofday.
+
+20230322
+	+ remove an unwanted string/number conversion in print.c, from changes
+	  in 20200717 (report by Jan Psota).
+	+ reduce compiler-warnings in configure script checks.
+
+20230215
+	+ update URLs, changing ftp to https
+	+ modify configure.in, moving checks for standard headers before the
+	  options, to improve check for arc4random (Redhat #2167291).
+
+20230203
+	+ split up do_printf to fix build with fortified mingw stdio.h
+	+ reduce compiler-warnings in configure script checks.
+
+20221229
+	+ fix shellcheck warnings in test-scripts.
+	+ updated configure macros
+	+ update config.guess, config.sub, and install-sh
+
+20210824
+	+ updated configure macros
+	+ update config.guess and config.sub
+
+20210528
+	+ add FreeBSD build-scripts, for test-builds
+	+ updated configure macros
+	+ update config.guess and config.sub
+
+20201023
+	+ start work on experimental approach to interval-expressions which
+	  does not involve loop-unrolling.
+	+ improve type-checking for builtin-regex's by using PTR only for the
+	  external-regex's.
+	+ improve dump format, showing intervals in curly-brace format.
+
+20201016
+	+ improve dump format, showing the jump-targets rather than offsets.
+
+20201009
+	+ show limits for brace-expressions in dump.
+	+ change RE_panic to stdarg, and log its message in trace file
+
+20200925
+	+ improve compatibility vs gawk/bwk in gsub handling of backslash by
+	  only escaping backslash with itself if those backslashes happen to
+	  precede a "&", e.g., "\\&" vs "\\" (Original-Mawk #14).
+	+ fix a regression in recent command-line option parsing.
+	+ modify configure/makefile to use .PHONY if available.
+	+ review/improve example-scripts
+
+20200918
+	+ build-fix for HP-UX 11.23, which lacks #define's for maximum of
+	  int64_t and uint64_t
+	+ build-fix for OpenBSD, which mis-types int64_t, just like macOS.
+	+ build-fix for macOS, which mis-types int64_t
+
+20200911
+	+ improve range of printf/sprintf for decimal formats by using the
+	  unsigned limit if the value is positive.
+	+ improve checks for command-line numeric options.
+	+ allow long-options to be abbreviated.
+
+20200828
+	+ modify configure script to move gcc -Werror flags to EXTRA_CFLAGS
+	  to avoid breaking configure-checks.
+	+ use sprintf-buffer for intermediate output of strftime, to handle
+	  extra-long format strings.
+	+ modify MAWK_LONG_OPTIONS "ignore" to limit that to the "-xxx" options
+	  in this set of changes, plus the existing --lint/--lint-old options.
+	+ allow -Wxxx options to use long-option format as -xxx, for better
+	  script-compatibility with gawk.
+	+ use standard output for -Whelp, but show usage message in standard
+	  error when no command arguments are given.
+	+ print version for -Wversion consistently in standard output.
+	+ improve use of const for making tables readonly.
+	+ change -W compat to -W traditional for better script-compatibility
+	  with gawk.
+
+20200821
+	+ completed first draft of mawk-code.7
+
+20200807
+	+ begin man/mawk-code.7
+	+ drop noweb dependency, move docs to man/mawk-arrays.7
+
+20200731
+	+ amend fix for Debian #303825 to more closely match gawk and BWK.
+	  Those use larger data types, e.g., long vs int, for limits, and also
+	  provide for using int64_t and uint64_t.  Internally, mawk now uses
+	  long long's where those are supported.
+	+ add --help and --version options
+
+20200724
+	+ modify logic for "{0}" in rexp.c so that a left-parenthesis is not
+	  trimmed when cancelling the previous token.
+	+ modify RE_cat to add a dummy M_ACCEPT as a workaround for logic in
+	  the new RE_init_it_cnt and RE_set_limit functions.
+	+ modify regexp_system.c to work with interval-expressions.
+	+ recognize gawk's --traditional and --posix as aliases for mawk's
+	  -W options, as well as -r and --re-interval to improve scripting
+	  compatibility.
+	+ add -W compat and -W posix, using the former to replace
+	  -W repetitions and the latter to replace -W posix_space
+	+ enable interval-expressions by default.
+
+20200717
+	+ add configure option "--disable-interval-expr"
+	> integrated/adapted changes by James Parkinson (jlp765):
+	+ add regexp intervals, 
+	+ add tests for intervals to test/mawktest and associated 
+	  test/repetitions files, 
+	+ add -W repetitions to enable r{m,n}
+	+ add man page updates to man/mawk.1
+
+20200708
+	+ update manpage comment about "nextfile" (AustinGroup #607).
+	+ amend manpage comment about "fflush" (AustinGroup #634).
+	+ amend manpage comment about "delete array" (AustinGroup #544).
+	+ updated configure macros
+	+ update config.guess and config.sub
+
+20200120
+	+ resync with my-autoconf.
+	+ fix typos found with codespell.
+	+ when reading input in interactive mode, provide for extending the
+	  buffer size for very long lines (Original-Mawk #59).
+
+20200106
+	+ correct line-number shown in too-many-arguments error message for
+	  the case where the function is a forward reference (report by
+	  "mukti").
+	+ fix install for manpage when configure --srcdir option is used
+	  (report by Rajeev V Pillai).
+	+ use both CFLAGS/LDFLAGS when linking in makefile (report by
+	  Rajeev V Pillai).
+	+ fix clang-9 warning in bi_funct.c (report by Rajeev V Pillai).
+	+ minor improvement to gcc warning options, from vile
+
+20191231
+	+ updated configure macros
+	+ update config.guess and config.sub
+
+20190203
+	+ improve manpage formatting, e.g., for man2html
+	+ improve debug-traces
+
+20190129
+	+ eliminate non-portable tdestroy() from zmalloc no-leaks code.
+	+ updated configure macros
+	+ update config.guess and config.sub
+
+20181114
+	+ revert a change for memory-leaks which made the forced-exit via a
+	  user function inconsistent with earlier versions (report by Andre
+	  Sihera).
+	+ amend a change for memory-leaks to avoid a double-free (Original-Mawk
+	  #56).
+
+20171017
+	+ add Debian compile/link flags to test-package.
+	+ cleanup spurious warnings from latest gcc.
+	+ changes for Original-Mawk #48:
+	  + add checks for stack overflow and underflow
+	  + increase stack limit to 1024
+	+ updated configure macros
+	+ update config.guess and config.sub
+
+20161120
+	+ add runtime check for assignments to OFMT and CONVFMT to ensure
+	  they use a single parameter (Original-Mawk #47).
+	+ repair build for --with-valgrind, broken in 20160930 const-fixes.
+
+20161107
+	+ correct sign-extension from 20160615 change to rand() (report by
+	  Christian Neukirchen).
+
+20160930
+	+ optimize closes on regular expressions to filter out redundant
+	  wildcards, fixing a special case leftover by changes in 20100224
+	  (Original-Mawk #34).
+	+ add regular-expressions to the -Wdump option when using mawk's
+	  built-in regular expressions.
+	+ fix a sign-extension in character-class parser (Original-Mawk #46).
+	+ minor optimizations.
+	+ improve use of const in tables.
+
+20160927
+	+ allow single-quote as a flag in printf, to complete the change
+	  for LC_NUMERIC in 20121129 (report by Graham Monteith).  
+	+ revert one of the fixes made for a Coverity warning about loss of
+	  precision in 20121209, which unnecessarily exposed a different
+	  problem (Original-Mawk #45).
+
+20160918
+	+ simplify "system()" function by calling C "system()" function, and
+	  use POSIX macros for wait-status to provide a less-ambiguous return
+	  value (suggested by Aharon Robbins).
+	+ add a null-pointer check in bi_mktime (patch by Ismael Luceno).
+
+20160905
+	+ escape '/' in range for test/reg4.awk to allow test-comparison with
+	  gawk and BWK.
+	+ updated configure macros, e.g., for compiler warnings and static
+	  analysis:
+	  + CF_CC_ENV_FLAGS
+	  + CF_GNU_SOURCE
+	  + CF_PROG_LINT
+	  + CF_RAND
+	  + CF_XOPEN_SOURCE
+	+ minor build-fix for HPUX 11.11 "make", which is confused by the
+	  recursive use of "make" in clean/distclean rules.
+	+ amend fix for Gentoo #424137 to eliminate a memory leak when opening
+	  files (Original-Mawk #44).
+	+ update config.guess and config.sub
+
+20160615
+	+ correct range when using system rand() function, which was 0..2
+	  rather than 0..1 on BSD systems (report/patch by Masaki Waga).
+
+20160313
+	+ correct order of checks for machine state in REtest which caused an
+	  out-of-bounds reference (Original-Mawk #36).
+
+20160226
+	+ update COPYING from
+	  https://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
+	  (Original-Mawk #38).
+	+ minor updates to configure script macros
+	+ update config.guess and config.sub
+
+20150503
+	+ add --with-man2html configure option
+	+ improve description of -W options and how they can be combined into
+	  a comma-separated list (adapted from Leif LeBaron).
+	+ modify parsing for -Wexec to permit its value to be separated by '='
+	  in addition to a space, for consistency with the other -W options.
+	+ cosmetic changes to configure script macros, from work on xterm.
+	+ update config.guess and config.sub
+
+20141206
+	+ Mawk behaves incorrectly when using the nextfile statement.  It marks
+	  the file as dead, but does not check such state and thus ends reading
+	  from a closed fd (patch by Ismael Luceno).
+
+20141027
+	+ remove a special check for anchored regular expressions in gsub3
+	  which did not handle expressions with "|" alternation (report by
+	  "Ypnose").
+
+20140914
+	+ rename vs6.mak / vs6.h to vs2008 for Visual Studio 2008 compiles.
+	+ remove MS-DOS support.
+	+ add a check in split for empty regex, treating that the same as an
+	  empty string (Original-Mawk #9).
+	+ correct inconsistently-ifdef'd reset of errno in check_strnum()
+	  function, which caused some values to be internally classified as
+	  strings rather than strnums (Original-Mawk #26).
+	+ add parameter to REmatch to control use of REG_NOTBOL and its
+	  equivalent in mawk (prompted by discussion with Mike Brennan,
+	  Original-Mawk #24).
+	+ settle on "gsub3" implementation (suggested by Mike Brennan,
+	  Original-Mawk #11).
+	+ change default for configure option --enable-init-srand to enable
+	  this (discussion with Mike Brennan).
+	+ add -W random option to set initial srand() seed.
+	+ add TraceVA, use to provide debug-traces for errmsg().
+	+ add note in manpage about "nextfile", see for example:
+	    http://www.opengroup.org/austin/docs/austin_578.txt
+	    http://austingroupbugs.net/view.php?id=607
+	+ make it possible to build with "bsd" library ported to Linux by
+	  setting LIBS=-lbsd before running configure script.
+	+ show random-function names in version message, as well as maximum
+	  integer-value.
+	+ modify initialization of srand default seed from time of day to use
+	  gettimeofday, etc., so that successive runs of mawk are less likely
+	  to use the same seed value (suggested by Mike Brennan).
+	+ make a further refinement, "gsub3" which uses a single pass.
+	+ change SType and SLen types to improve performance as well as
+	  handling larger regular expressions (suggested by Mike Brennan).
+	+ fix some minor issues reported by Coverity.
+	+ regenerate parse.c using byacc 20140422
+	+ modify makefile-rule for generating parse.c to keep the "#line"
+	  preprocessor lines consistent with the actual filename.  This is
+	  needed by lcov.
+	+ add test/reg7.awk to help with recent testing.
+	+ discard intermediate new_gsub used for regression-testing, will do
+	  further improvements based on "gsub2".
+	+ fix a comparison in rexp3.c to work with embedded nulls (patch by
+	  Mike Brennan).
+	+ in-progress changes to implement "gsub2", which will reduce copying.
+	+ discard intermediate old_gsub used for regression-testing, using
+	  original gsub function renamed to "gsub0" for that purpose.
+	+ remove old compiler information from version message.
+	+ remove NF value from version message.
+	+ patches by Mike Brennan:
+	  + changed the intermediate storage of STRINGS used by split.
+	  + cleaned up the xxx_split() functions.
+	    a) removed hand loop unrolling. What was an optimization for
+            intel 8086/88 is silly today.
+            b) consequence of a) some macros went away so the code is easier
+            to read/understand.
+            c) handles null in input string
+	       Note:  re_split() does \x00 null correctly, but it calls
+	       REmatch() which does not.  I have examples where REmatch works
+	       with nulls and examples of not working.  That needs to be fixed.
+	  + changed field allocation to support no upper limit.
+	+ when comparing two strings, allow for embedded nulls.
+	+ add checks in rexp3.c for infinite loop for testcase noloop.awk
+	  (report by Tibor Palinkas).
+	+ improve test-package for debian by adding postrm script to restore
+	  "mawk-base" to its unalternatized configuration, as well as adding
+	  messages to the other pre/post scripts.
+	+ patches by Mike Brennan:
+	  + increase some limits: NF is now 1048575, sprintf limit is 8192.
+	  + updated array.w; mostly documentation improvements
+	  + add array.pdf generated from array.w
+	+ add -Wu / -Wusage / -Wh / -Whelp to show usage message, like gawk.
+	  If long options are enabled, honor --help and --usage as well.
+	+ if no command-line parameters are given, show usage message like
+	  gawk and BWK (report by Michael Sanders).
+	+ improve configure macros CF_ADD_CFLAGS, CF_ADD_LIBS, CF_XOPEN_SOURCE,
+	  e.g., for Minix3.2 port.
+	+ restore in-progress change to gsub; resolved problem handling its
+	  internal use of vectors for second parameter when "&" marker is used.
+	+ improve configure check for Intel compiler warnings; trim unwanted
+	  -no-gcc option.
+	+ for Solaris suppress the followup check for defining _XOPEN_SOURCE
+	+ update config.guess and config.sub
+
+20131226
+	+ add configure check to work around recent breakage in Cygwin's math.h
+	  which declares _LIB_VERSION without allowing it to be updated (report
+	  by Gert Hulselmans).
+	+ minor updates to configure script, for clang and mingw
+	+ update config.guess and config.sub
+
+20130803
+	+ minor updates to configure script
+	+ add limit-checks, improve index computation in scan.c to fix old
+	  1.3.3 problems with very long string-literals in the parsed script
+	  (report by Marcin Krol).
+	+ update config.guess and config.sub
+
+20130219
+	+ modify missing-operand check in rexp.c to allow the case of empty
+	  "()", matching behavior of gawk and BWK (report by Arkadiusz
+	  Miskiewicz).
+	+ revert in-progress change to gsub retain ifdef'd for additional
+	  development since it did not handle array as the second parameter
+	  (report by Arkadiusz Miskiewicz).
+
+20121209
+	+ build-fix for cygwin in matherr.c, which declares a different type
+	  for _LIB_VERSION
+	+ add missing "-f" option in examples/gdecl.awk
+	+ fix a regression in fflush, ensuring that it returns an error if
+	  the argument does not match any output filename (report by Nathan
+	  Weeks).
+	+ modify wording of configure --help message to make it clear that
+	  the default for --with-builtin-regex uses the builtin regular
+	  expression engine of mawk.
+	+ fix issues reported by Coverity scan.  Most of these were minor,
+	  and were addressed by modifying the source to allow Coverity to
+	  improve its analysis of the code.
+	+ amend support for LC_NUMERIC by translating period to the local
+	  decimal separator as needed to work with strtod() which is used
+	  to validate decimal constants when scanning source files.  This
+	  fixes an infinite loop with
+		mawk 'BEGIN { print 1.0 }'
+	  (report by Jan Psota).
+	+ regenerate man/mawk.doc, overlooked in previous updates.
+
+20121129
+	+ change behavior if internal fflush call fails: rather than exiting
+	  with an error, propagate the return value to the script as -1, for
+	  consistency with gawk and BWK (discussion with Aharon Robbins and
+	  Nathan Weeks).
+	+ add special case for forward reference to a function using an array
+	  parameter, updating the function's parameter type so that the array
+	  is passed properly.
+	+ support length(array), as done in gawk and BWK awk (Original-Mawk #1).
+	+ support LC_NUMERIC, which will modify the displayed decimal point in
+	  some locales.  It does not modify the decimal point used for input,
+	  matching the behavior of nawk and BWK awk (prompted by request from
+	  Yechiel Bardov for thousands-separator).
+	+ add configure option --enable-init-srand to allow choice whether to
+	  initialize random numbers automatically at startup or not.  Not doing
+	  this makes programs more predictable (Debian #63843, Original-Mawk
+	  #3).
+	+ add configure option --enable-builtin-srand, use that to deprecate
+	  mawk's builtin srand/rand functions which generally are not as good
+	  as the system-provided functions.
+	+ extend --enable-trace configure option to show builtin functions.
+	+ add systime and mktime functions
+	+ when warning about unrecognized options, do not exit with error
+	  on these gawk options:
+		  --lint
+		  --lint-old
+		  --posix
+		  --re-interval
+		  --traditional
+	+ integrate strftime function (patch by Dominic Letz, Original-Mawk #2).
+	+ correct logic for "/dev/stdin" special device (GenToo #424137,
+	  Original-Mawk #17).
+	+ updates for configure script macros:
+	  + modify configure script and makefile to support cross-compiles.
+	  + remove Turbo C++ and Zortech C++ makefiles.
+	  + remove obsolete function-checks: fmod, memcpy, strchr, strerror,
+	    strtod, vfprintf.
+	  + remove obsolete checks for some headers:  math.h, stdarg.h,
+	    stdlib.h, string.h time.h
+	  + support --datarootdir option.
+	  + add 3rd parameter to AC_DEFINE's to allow autoheader to run.
+	  + remove unused macros.
+	+ update config.guess and config.sub
+	+ add icons for webpage artwork
+
+20120627
+	+ add "/dev/stdin" name for stdin for consistency with other
+	  implementations of awk (suggested by Aharon Robbins).
+	+ improve overflow check in check_strnum() (Ubuntu #485574).
+	+ implement gawk extension "nextfile" (suggested by Aharon Robbins).
+	+ updates for configure macros CF_ANSI_CC_CHECK, CF_ENABLE_TRACE,
+	  CF_GCC_ATTRIBUTES, CF_GCC_WARNINGS, CF_MAKE_TAGS, CF_MSG_LOG,
+	  CF_REGEX, CF_XOPEN_SOURCE.
+	+ update config.guess and config.sub
+
+20101210
+	+ update copyright notices to reflect changes made starting 20080909.
+	  This commit was made in May 2012, updates only copyright notices
+	  needed for project registration on Savannah as discussed in Debian
+	  #554167.  However, since current policy on Savannah discriminates
+	  against GPLv2, it will be hosted elsewhere.  See
+		http://invisible-island.net/mawk/
+		http://github.com/ThomasDickey
+
+20101207
+	+ add configure --enable-trace, to consolidate various debugging
+	  traces which were written to stderr.  This writes to Trace.out.
+	+ modify zmalloc.c to make it simpler to use the --disable-leaks
+	  configure script option to analyze memory leaks.  The memory pool
+	  which interferes with analysis can be disabled by defining
+	  DEBUG_ZMALLOC.
+	+ (IN-PROGRESS) convert gsub() function from recursive, to
+	  non-recursive to lessen use of program stack (Debian #158481).
+	+ escape some dashes in manpage, to work with groff.
+	+ change section for Debian package to "interpreters" (Debian #442071).
+	+ fix printable token value for SC_MATCH in scan.c (report by Heiner
+	  Marxen).
+
+20100625
+	+ correct translation of octal and hex escapes for system regular
+	  expression library.
+	+ modify configure script to support --program-suffix, etc.
+	+ add Debian package scripts, for "mawk-cur".
+	+ add RPM spec-file.
+	+ move release- and patch-level values from version.c to patchlev.h
+	  to simplify packaging scripts.
+
+20100618
+	+ correct translation of "^{" pattern for system regular expression
+	  library  (report by Elias Pipping).
+	+ fix sentence fragment in README (report by Elias Pipping).
+
+20100507
+	+ cleanup gcc warnings for 64-bit platform, e.g., use size_t rather
+	  than unsigned, etc.
+	+ fix warnings from clang --analyze
+	+ update/improve configure script
+	  + modify CF_GCC_VERSION to ignore stderr, e.g., from c89 alias
+	  + modify CF_GCC_WARNINGS, moving -W and -Wall into the list to check,
+	    since c89 alias for gcc complains about these options.
+	  + add --disable-leaks and related options, for testing.
+	  + add lint rule to makefile.
+	  + add configure-check for ctags to work with pkgsrc.
+	+ amend change of array.w, fixes a regression in "delete" (report by
+	  Heiner Marxen).
+
+20100419
+	+ modify split() to handle embedded nulls in the string to split, e.g.,
+		BEGIN{s="a\0b"; print length(s); n = split(s,f,""); print n}
+	  (report by Morris Lee).
+
+	+ modify array.w to update table pointers in the special case where
+	  an array is known to have string-indices, but is later indexed via
+	  integers.  The problem occurs when the array grows large enough to
+	  rehash it, e.g.,
+		BEGIN{a["n"];for(i=1;i<1000;++i)printf "%d\n", a[i]; }
+	  (report by Morris Lee).
+
+	+ increase size of reference-count for strings to unsigned.  It was an
+	  unsigned short, which prevented using arrays larger than 64k, e.g.,
+		BEGIN{for(i = 1; i <= 65550; ++i){if(i >= 65534 && i<= 65537) print i; s[i] = "a"}; delete s;}
+	  (report by Morris Lee).
+
+	+ add special case for Solaris 10 (and up) to configure check
+	  CF_XOPEN_SOURCE
+
+	+ refactored configure check CF_REGEX
+
+20100224
+	+ add a configure check for large files (report by Sean Kumar).
+
+	+ modify check in collect_RE() to show the actual limit value, e.g.,
+	  MIN_SPRINTF-2 used for built-in regular expressions.
+
+	+ increase MIN_SPRINTF, used as limit on regular-expression size, to
+	  match the MAX_SPLIT value, i.e., slightly more than doubling the size
+	  (report by Markus Gnam).
+
+	+ further modify makefile to build outside the source-tree.
+
+	+ modify makefile and mawktest to use relative path again, since the
+	  existing script did not work with openSUSE's build (patch by Guido
+	  Berhoerster).
+
+	+ fix makefile's .c.i rule, which lacked CPP definition.
+
+	+ update mawktest.bat script to more/less correspond with mawktest,
+	  for Win32 console except where echo command does not handle the
+	  required quoting syntax.
+
+	+ add vs6.mak, for Visual Studio 6.
+
+	+ modify mawktest script to report results from all tests, rather than
+	  halting on the first failure.
+
+	+ add limit-check after processing match(test, "[^0-9A-Za-z]") to
+	  ensure the internal trailing null of the test-string is not mistaken
+	  for part of the string, i.e., RSTART, RLENGTH are computed correctly
+	  (report by Markus Gnam).
+
+	+ modify parsing of -W option to use comma-separated values, e.g.,
+	  "-Wi,e" for "-Winteractive" and "-Werror".
+
+	+ add timestamp to scancode.c, to help manage revisions.
+
+	+ improve configure macro CF_XOPEN_SOURCE, making it remove possibly
+	  conflicting definitions before adding new ones.
+
+	+ update config.guess and config.sub
+
+	> patches by Jan Psota:
+
+	+ improve buffering for -Winteractive option.
+
+	+ allow multiple single-character flags after -W, e.g., "-Wie" for
+	  "-Winteractive" and "-Werror" to permit these to be passed on a
+	  "#"-line of a shell script, e.g.,
+	  	#!/usr/bin/mawk -Wie
+
+	> patches by Jonathan Nieder:
+
+	+ add new M_SAVE_POS and M_2JC operation codes (states) to the
+	  built-in regular expression engine.  Use these to reimplement
+	  m* (closure), to provide a way to avoid infinite looping on
+	  matches against empty strings.  This change requires reimplementing
+	  the workaround for gawk's noloop1 testcase from 20090726.
+
+	+ improve buffer-overflow check for string_buff.
+
+	+ fix collect_RE to treat "[^]]" as a character class (meaning "not a
+	  closing bracket") but "[^^]]" not as one.  This also requires
+	  initializing the local "start of character class" variable to NULL
+	  rather than the beginning of the string, to avoid an invalid array
+	  access when collecting expressions such as "^text".
+
+	+ within a character class and not followed by a :, ., or ~, a "[" is
+	  just like any other character.  This way, you can tell mawk to scan
+	  for a literal [ character with "mawk /[[]/", and you can scan for a [
+	  or ] with "mawk /[][]/".  Also clean up the relevant loop in
+	  do_class() to make it a bit more readable.
+
+	+ outside a character class, a "]" is just like any other character.
+
+	+ prevent do_class() from scanning past the end, e.g., if the
+	  terminating zero byte was escaped.
+
+	+ fix regular-expression parsing when a right parenthesis ")" is
+	  found without a preceding left parenthesis.
+
+	+ fix resetting of position stack when backtracking.
+
+	+ modify regular-expression engine to avoid exponential running time
+	  for some regular expression matches in which the first match mawk
+	  finds extends to the end of the string.  This is a new fix for the
+	  gawk noloop2 test, added here for regression testing.
+
+20091220
+	+ bump version to 1.3.4
+
+	+ update INSTALL and README files.
+
+	+ improve configure checks for math library.
+
+	  + change test for NaN to use sqrt() rather than log() to work around
+	    cygwin's partly broken math functions.
+
+	  + add/use isnanf() to work around other breakage in cygwin math
+	    functions.
+
+	  + add configure check for _XOPEN_SOURCE, etc., needed to define
+	    proper function pointer for sigaction, e.g., on Tru64.
+
+	  + add check for sigaction function pointer, whose POSIX form is
+	    absent from the cygwin header.
+
+	+ extend MAWKBINMODE, adding a third bit which when set will suppress
+	  the change for RS or ORS to use CR/LF rather than LF.  This is used
+	  for MinGW to make the "check" rule in a build work, for instance.
+
+	+ add configure check for functions used for pipe/system calls, e.g.,
+	  for MinGW where these are absent.
+
+	+ add runtime check for floating-point underflow exceptions
+
+	+ fix an old 1.3.3 bug in re_split(), which did not check properly for
+	  the end of buffer; this broke on Tru64.
+
+	+ drop obsolete config-user, v7 and atarist subdirectories
+
+	+ improve configure checks for sigaction, making the definitions used
+	  in fpe_check.c consistent with matherr.c
+
+	+ build fixes for AIX, Tru64.
+
+	+ add configure check for 'environ'.
+
+	+ remove redundant setlocale() calls; only LC_CTYPE and LC_NUMERIC
+	  are used.
+
+20091213
+	+ add makedeps.sh script to aid in updating object dependencies in
+	  Makefile.in
+
+	+ use "mkdir -p" rather than mkdirs.sh (suggested by Aleksey Cheusov).
+
+	+ reformatted this file, to simplify extraction of contributor names.
+
+	+ update config.guess and config.sub
+
+	> patches by Jonathan Nieder:
+
+	+ modify CF_DISABLE_ECHO autoconf macro to ensure that command lines
+	  in Makefile.in begin with a tab.
+
+	+ the makefile does not use $(MAKE); remove the SET_MAKE substitution.
+
+	+ add some files to the "make clean" rule, in case make gets
+	  interrupted in the middle of a rule.
+
+	+ add a maintainer-clean rule to the makefile, to remove files which
+	  could be regenerated.
+
+	+ fix an unescaped "-" in man/mawk.1
+
+	+ remove an unneeded cast in bi_funct.c
+
+	+ fix an unused parameter warning in matherr.c
+
+	+ drop unused line_no parameter from compile_error() and its callers.
+
+	+ convert makescan.c to ANSI C, do further cleanup of that file.
+
+	+ split-out scancode.h from scan.h
+
+20090920
+	+ improve hash function by using FNV-1 algorithm (patch/analysis by
+	  Jim Mellander).  This greatly improves speed for accessing arrays
+	  with a large number of distinct keys; however the unsorted order in
+	  "for" loops will differ.
+
+	+ add "internal regex" or "external regex" string to version message to
+	  allow scripting based on support for embedded nulls.
+
+	+ drop obsolete CF_MAWK_PROG_GCC and CF_MAWK_PROG_YACC macros from
+	  configure script (report by Mike Frysinger).
+
+	+ fixes to allow build outside source-tree (report by Mike Frysinger).
+
+	+ correct logic in scan.c to handle expression "[[]" (report by Aleksey
+	  Cheusov).
+
+	+ add MAWK_LONG_OPTIONS feature to allow mawk to ignore long options
+	  which are not implemented.
+
+	+ two changes for embedded nulls, allows FS to be either a null or
+	  contain a character class with null, e.g., '\000' or '[ \000]':
+
+	  + modify built-in regular expression functions to accept embedded
+	    nulls.
+
+	  + modify input reader FINgets() to accept embedded nulls in data read
+	    from files.  Data read from standard input is line-buffered, and is
+	    still null-terminated.
+
+	+ update config.guess and config.sub
+
+20090820
+	+ minor portability/standards fixes for examples/hical
+
+	+ add WHINY_USERS sorted-array feature, for compatibility with gawk
+	  (patch by Aharon Robbins).
+
+	+ correct lower-limit for d_to_U() function, which broke conversion of
+	  zero in "%x" format, added in fix for Debian #303825 (report by
+	  Masami Hiramatsu).
+
+	+ modify "%s" and "%c" formatting in printf/sprintf commands to ensure
+	  that "%02s" does not do zero-padding, for standards conformance
+	  (discussion with Aharon Robbins, Mike Brennan, prompted by Debian
+	  #339799).
+
+20090728
+	+ add fallback definitions for GCC_NORETURN and GCC_UNUSED to build
+	  with non-gcc compilers (report by Jan Wells).
+
+20090727
+	+ add check/fix to prevent gsub from recurring to modify on a substring
+	  of the current line when the regular expression is anchored to the
+	  beginning of the line; fixes gawk's anchgsub testcase.
+
+	+ add check for implicit concatenation mistaken for exponent; fixes
+	  gawk's hex testcase.
+
+	+ add character-classes to built-in regular expressions.
+
+	+ add 8-bit locale support
+
+20090726
+	+ improve configure checks for MAX__UINT.
+
+	+ add a check for infinite loop in REmatch(), to work with gawk's
+	  noloop1 testcase.
+
+	+ modify logic to allow setting RS to an explicit null character, e.g.,
+		RS="\0"
+	  (Ubuntu #400409).
+
+	+ modify workaround for (incorrect) scripts which use a zero-parameter
+	  for substr to ensure the overall length of the result stays the same.
+	  For example, from makewhatis:
+		filename_no_gz = substr(filename, 0, RSTART - 1);
+
+	+ move regular-expression files into main directory to simplify
+	  building using configure --srcdir and VPATH.
+
+	+ modify internal functions for gsub() to handle a case from makewhatis
+	  script from man 1.6f which substitutes embedded zero bytes to a
+	  different value (report by Gabor Z Papp).
+
+	+ change default for configure --with-builtin-regex to prefer the
+	  builtin regular expressions.  They are incomplete, but POSIX regular
+	  expressions cannot match nulls embedded in strings.
+
+	+ require standard C compiler; converted to ANSI C.
+
+	+ rename #define'd SV_SIGINFO to MAWK_SV_SIGINFO to avoid predefined
+	  name on Mac OS X (report on comp.lang.awk).
+
+	+ revise configure script to use conventional scheme for generating
+	  config.h
+
+20090721
+	+ port to cygwin, modifying test-script to work with executable-suffix
+	  and fp-exception code to allow const in declaration.
+
+20090712
+	+ bump patch-date.
+
+	+ fix Debian #127293 "mawk does not understand unescaped '/' in
+	  character classes", noting that gawk 3.1.6 also has problems with
+	  this area.
+
+	+ drop support for varargs; use stdarg only.
+
+	+ add tags rule to makefile.
+
+	+ rename configure option "--with-local-regexp" to
+	  "--with-builtin-regex"
+
+	+ add build-fix from NetBSD port:  enable vax FP support when
+	  defined(__vax__) as well as BSD43_VAX.  from ragge.
+
+	+ add configure --disable-echo option
+
+	+ identify updated files with "MawkId" keywords, retaining old log
+	  comments for reference.  Ongoing changes are recorded here.
+
+	+ change maintainer email address to my own.
+
+20090711
+	+ use conventional install/uninstall rules in makefile.
+
+	+ add install-sh script, mkdirs.sh, config.guess and config.sub
+
+	+ add $DESTDIR support to makefile
+
+	+ add uninstall make-target
+
+	+ add configure --enable-warnings option (fixed some warnings...)
+
+	+ change configure script to autoconf 2.52 to permit cross-compiles.
+
+	+ drop config.user file; replace with conventional autoconf --prefix,
+	  etc.
+
+	+ fill-in CA_REC.type in two places in parse.y which weren't
+	  initialized.
+
+	+ fix Debian #38353 (absent expression on last part of "for" statement
+	  caused core-dump).
+
+	+ fix Debian #303825 (printf %x clamps numbers to signed range rather
+	  than unsigned range).
+
+	+ apply fix from Debian #355966 (null-pointer check in
+	  is_string_split())
+
+	+ apply fix from Debian #391051 (limit-check in scan.c)
+
+20090709
+	+ add support for external regexp libraries (patch by Aleksey Cheusov)
+	  (originally comp.lang.awk June 15 2005, also cited in Debian #355442
+	  March 6, 2006).
+
+20090705
+	+ fixes to build on BeOS (if LIBS is set to -lroot), and QNX
+	  (redefinition of setmode).
+
+20080909
+	+ fix gcc 4.3.1 -Wall warnings
+
+	+ transform mawk.ac.m4 to aclocal.m4, renaming macros to use "CF_" or
+	  "CF_MAWK_" prefixes depending on their reusability.  Modified macros
+	  to use quoting consistent with recent autoconf versions.
+
+	+ regenerate configure with autoconf version 2.13.20030927
+
+	+ regenerate parse.c with byacc - 1.9 20080827
+
+	+ ifdef'd prototypes in nstd.h which belong to stdlib.h, string.h to
+	  use standard C by default.
+
+	+ source-in Debian patches 01-08 (see below).  Changes for 20080909 fix
+	  Debian #496980 as well.
+
+-------------------------------------------------------------------------------
+Debian patches:
+
+(Peter Eisentraut <petere@debian.org>  Sat, 05 Apr 2008 17:11:11 +0200)
+
+08_fix-for-gcc3.3
+	Debian #195371
+
+(James Troup <james@nocrew.org>  Fri, 30 May 2003 15:24:50 +0100)
+
+07_mawktest-check-devfull
+	Debian #51875
+
+06_parse.y-semicolons
+	Debian #170973
+
+05_-Wall-fixes
+
+04_mawk.1-fix-pi
+	Debian #103699
+
+03_read-and-close-redefinition
+	Debian #104124
+
+02_fix-examples
+	Debian #36011
+
+01_error-on-full-fs
+	Debian #28249
+	Debian #4293
+
+-------------------------------------------------------------------------------
+1.3.1 -> 1.3.2 Sep 1996
+
+1) Numeric but not integer indices caused core dump in new array scheme.
+   Fixed bug and fired test division.
+
+2) Added ferror() checks on writes.
+
+3) Added some static storage specs to array.c to keep non-ansi
+   compilers happy.
+
+1.3 -> 1.3.1 Sep 1996
+Release to new ftp site ftp://ftp.whidbey.net.
+
+1) Workaround for overflow exception in strtod, sunos5.5 solaris.
+
+2) []...] and [^]...] put ] in a class (or not in a class) without
+   having to use back-slash escape.
+
+1.2.2 -> 1.3 Jul 1996
+Extensive redesign of array data structures to support large arrays and
+fast access to arrays created with split.  Many of the ideas in the
+new design were inspired by reading "The Design and Implementation of
+Dynamic Hashing Sets and Tables in Icon" by William Griswold and
+Gregg Townsend, SPE 23,351-367.
+
+1.2.1 -> 1.2.2  Jan 1996
+
+1) Improved autoconfig, in particular, fpe tests.  This is far from
+   perfect and never will be until C standardizes an interface to ieee754.
+
+2) Removed automatic error message on open failure for getline.
+
+3) Flush all output before system().  Previous behavior was to only
+   flush std{out,err}.
+
+4) Explicitly fclose() all output on exit to work around AIX4.1 bug.
+
+5) Fixed random number generator to work with longs larger than
+   32bits.
+
+6) Added a type Int which is int on real machines and long on dos machines.
+   Believe that all implicit assumptions that int=32bits are now gone.
+
+-------------------------------------------------------------------------------
+Changes from version 1.1.4 to 1.2:
+
+1) Limit on code size set by #define in sizes.h is gone.
+
+2) A number of obscure bugs have been fixed such as,
+   you can now make a recursive function call inside a for( i in A) loop.
+   Function calls with array parameters in loop expressions sometimes
+   generated erroneous internal code.
+
+   See RCS log comments in code for details.
+
+   Reported bugs are fixed.
+
+3) new -W options
+
+
+   -We file   :  reads commands from file and next argument, regardless
+	      of form, is ARGV[1].  Useful  for passing -v , -f etc to
+	      an awk program started with #!/.../mawk
+
+
+      #!/usr/local/bin/mawk -We
+
+      myprogram -v   works, while
+
+      #!/usr/local/bin/mawk -f
+
+      myprogram -v    gives error message
+	  mawk: option -v lacks argument
+
+      This is really a posix bozo.  Posix says you end arguments with
+      "--" , but this doesn't work with the "#!" convention.
+
+   -W interactive :  forces stdout to be unbuffered and stdin to
+	be line buffered.  Records from stdin are lines regardless of
+	the value of RS.  Useful for interaction with a mawk on a pipe.
+
+   -W dump, -Wd   :  disassembles internal code to stdout (used to be
+       stderr) and exits 0.
+
+4)  FS = "" causes each record to be broken into characters and placed
+     into $1,$2 ...
+
+     same with split(x,A,"") and split(x,A,//)
+
+5)  print > "/dev/stdout"  writes to stdout, exactly the same as
+    print
+
+    This is useful for passing stdout to
+
+    function my_special_output_routine(s, file)
+    {
+	# do something fancy with s
+	print s > file
+    }
+
+6) New built-in function fflush() -- copied from the lastest att awk.
+
+      fflush() : flushes stdout  and returns 0
+      fflush(file)  flushes file and returns 0; if file was not an
+      open output file then returns -1.
+
+7)  delete  A ;  -- removes all elements of the array A
+
+    intended to replace:
+
+	 for( i in A) delete A[i]
+
+8)  mawk errors such as compilation failure, file open failure, etc.
+    now exit 2 which reserves exit 1 for the user.
+
+9)  No program now silently exits 0, prior behavior was to exit 2 with
+    an error message