| Commit message (Collapse) | Author | Age | Files | Lines |
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[editor's note: this commit combines approximate 4 months of furious
releases of Andy Dougherty and Larry Wall - see pod/perlhist.pod for
details. Andy notes that;
Alas neither my "Irwin AccuTrack" nor my DC 600A quarter-inch cartridge
backup tapes from that era seem to be readable anymore. I guess 13 years
exceeds the shelf life for that backup technology :-(.
]
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[editor's note: the sparc executables have not been included,
and emacs backup files have been removed]
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[the last one taken from the September '94 InfoMagic CD; a similar
style of cleanup as the previous commits was performed]
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[editor's note: cleaned up from the September '94 InfoMagic CD, just
like the last commit]
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[editor's note: the sparc executables have not been included,
and emacs backup files and other cruft such as patch backup files have
been removed. This was reconstructed from a tarball found on the
September 1994 InfoMagic CD]
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[editor's note: the sparc executables have not been included, and
emacs backup files have been removed. This was reconstructed from a
tarball found on the September 1994 InfoMagic CD; the date of this is
approximate]
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[editor's note: the sparc executables have not been included,
and emacs backup files have been removed]
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[editor's note: from history.perl.org. The sparc executables
originally included in the distribution are not in this commit.]
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Since Ed Barton sent me a patch for the malignent form of "Malformed
cmd links", I finally broke down and made a patch for the various
other little things that have been accumulating on version 4.
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Subject: bad interaction between backslash and hyphen in tr///
Among other things, tr/\040-\126/ / was not doing a character range,
due to a earlier botched fix to make \- work right.
Subject: Configure test for presence of nroff was wrong
If Loc doesn't find nroff, it sets $nroff to 'nroff'. The man
page test was tesing against the null string.
Subject: installperl error message printed file mode in decimal, not octal
A real, honest-to-goodnes nit.
Subject: fixed up some filenames in MANIFEST
Erroneously contained "pstruct", omitted hints/isc_3_2_3.sh.
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Here's the typical cleanup patch that follows any large
set of patches. My testing organization is either too large
or too small, depending on how you look at it, sigh...
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See patch #20.
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Ok, here's the cleanup patch I suggested you wait for. Have at it...
Subject: added little-endian pack/unpack options
This is the only enhancement in this patch, but it seemed unlikely
to bust anything else, and added functionality that it was very
difficult to do any other way. Compliments of David W. Sanderson.
Subject: op/regexp.t failed from missing arg to bcmp()
Subject: study was busted by 4.018
Subject: sort $subname was busted by changes in 4.018
Subject: default arg for shift was wrong after first subroutine definition
Things that broke in 4.018. Shame on me.
Subject: do {$foo ne "bar";} returned wrong value
A bug of long standing. How come nobody saw this one? Or if you
did, why didn't you report it before now? Or if you did, why did
I ignore you? :-)
Subject: some machines need -lsocket before -lnsl
Subject: some earlier patches weren't propagated to alternate 286 code
Subject: compile in the x2p directory couldn't find cppstdin
Subject: more hints for aix, isc, hp, sco, uts
Subject: installperl no longer updates unchanged library files
Subject: uts wrongly defines S_ISDIR() et al
Subject: too many preprocessors can't expand a macro right in #if
The usual pastiche of portability kludges.
Subject: deleted some unused functions from usersub.c
And fixed the spelling of John Macdonald's name, and included his
suggested workaround for a certain vendor's stdio bug...
Subject: added readdir test
Subject: made op/groups.t more reliable
Subject: added test for sort $subname to op/sort.t
Subject: added some hacks to op/stat.t for weird filesystem architectures
Improvements (hopefully) to the regression tests.
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See patch #11.
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Subject: pack(hh,1) dumped core
Subject: read didn't work from character special files open for writing
Subject: close-on-exec wrongly set on system file descriptors
Subject: //g only worked first time through
Subject: perl -v printed incorrect copyright notice
Subject: certain pattern optimizations were botched
Subject: documented some newer features in addenda
Subject: $) and $| incorrectly handled in run-time patterns
Subject: added tests for case-insensitive regular expressions
Subject: m'$foo' now treats string as single quoted
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See patch #4.
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So far, 4.0 is still a beta test version. For the last production
version, look in pub/perl.3.0/kits@44.
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See patch #42.
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See patch #38.
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See patch #29.
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Certain systems, notable Ultrix, set the close-on-exec flag
by default on dup'ed file descriptors. This is anti-social
when you're creating a new STDOUT. The flag is now forced
off for STDIN, STDOUT and STDERR.
Some yaccs report 29 shift/reduce conflicts and 59 reduce/reduce
conflicts, while other yaccs and bison report 27 and 61. The
Makefile now says to expect either thing. I'm not sure if there's
a bug lurking there somewhere.
The defined(@array) and defined(%array) ended up defining
the arrays they were trying to determine the status of. Oops.
Using the status of NSIG to determine whether <signal.h> had
been included didn't work right on Xenix. A fix seems to be
beyond Configure at the moment, so we've got some OS dependent
#ifdefs in there.
There were some syntax errors in the new code to determine whether
it is safe to emulate rename() with unlink/link/unlink. Obviously
heavily tested code... :-)
Patch 27 introduced the possibility of using identifiers as
unquoted strings, but the code to warn against the use of
totally lowercase identifiers looped infinitely.
I documented that you can't interpolate $) or $| in pattern.
It was actually implied under s///, but it should have been
more explicit.
Patterns with {m} rather than {m,n} didn't work right.
Tests io.fs and op.stat had difficulties under AFS. They now
ignore the tests in question if they think they're running under
/afs.
The shift/reduce expectation message was off for a2p's Makefile.
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See patch #19.
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See patch #16.
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See patch #13.
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See patch #9.
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See patch 7.
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See patch 5.
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Configure had difficulties if the user's path had weird components.
Now Configure appends the user's path to its own.
Some machines need <netinet/in.h> included in order to define
certain macros for packing or unpacking network order data.
On Suns, the shared library is used by default. If it doesn't
contain something contained in /lib/libc.a, then Configure was
getting things wrong (such as gethostent()). Now Configure uses
the shared library if it's there in preference to libc.a.
When gcc was selected as the compiler, the cc flags defaulted to
-fpcc_struct_return. Unfortunately, the underlines should be hyphens.
Configure figures out if BSD shadow passwords are installed and
the getpw* routines now return slightly different data in the
affected fields.
Some of the prompts in Configure with regard to gid and uid types
were unclear as to their intended use. They are now a little
clearer.
Sometimes you could change a .h file and taintperl and suidperl
didn't get remade correctly because of missing dependencies
in the Makefile.
The README file was misleading about the fact that you have to
say "make test" before you can "cd t; TEST"
The reverse operator was busted in two different ways. Should work
better now. There are now regression tests for it.
Some of the optimizations that perl does are disabled after period
of time if perl decides they aren't doing any good. One of these
caused a string to be freed that was later referenced via another
pointer, causing core dumps. The free turned out to be unnecessary,
so it was removed.
The unless modifier was broken when run under the debugger, due to
the invert() routine in perl.y inverting the logic on the DB
subroutine call instead of the command the unless was modifying.
Configure vfork test was backwards. It now works like other defines.
The numeric switch optimization was broken, and caused code to be
bypassed. This has been fixed.
A split in a subroutine that has no target splits into @_.
Unfortunately, this wrongly freed any referenced arguments passed
in through @_, causing confusing behavior later in the program.
File globbing (<foo.*>) left one orphaned string each time it
called the shell to do the glob.
RCS expanded an unintended $Header in lib/perldb.pl. This has
been fixed simply by replacing the $ with a .
Some forward declarations of static functions were missing from
malloc.c.
There's a strut in malloc for mips machines to extend the overhead
union to the size of a double. This was also enabled for sparc
machines.
DEC risc machines are reported to have a buggy memcmp. I've put
some conditional code into perl.h which I think will undef MEMCMP
appropriately.
In perl.man.4, I documented the desirability of using parens even
where they aren't strictly necessary.
I've grandfathered "format stdout" to be the same as "format STDOUT".
Unary operators can be called with no argument. The corresponding
function call form using empty parens () didn't work right, though
it did for certain functions in 2.0. It now works in 3.0.
The string ordering tests were wrong for pairs of strings in which
one string was a prefix of the other. This affected lt, le, gt,
ge, and the sort operator when used with no subroutine.
$/ didn't work with the stupid code used when STDSTDIO was undefined.
The stupid code has been replaced with smarter code that can do
it right. Special thanks to Piet van Oostrum for the code.
Goulds work better if the union in STR is at an 8 byte boundary.
The fields were rearranged somewhat to provide this.
"sort keys %a" should now work right (though parens are still
desirable for readability).
bcopy() needed a forward declaration on some machines.
In x2p/Makefile.SH, added dependency on ../config.sh so that it
gets linked down from above if it got removed for some reason.
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A few of the new features: (18 Oct)
* Perl can now handle binary data correctly and has functions to pack and unpack binary structures into arrays or lists. You can now do arbitrary ioctl functions.
* You can now pass things to subroutines by reference.
* Debugger enhancements.
* An array or associative array may now appear in a local() list.
* Array values may now be interpolated into strings.
* Subroutine names are now distinguished by prefixing with &. You can call subroutines without using do, and without passing any argument list at all.
* You can use the new -u switch to cause perl to dump core so that you can run undump and produce a binary executable image. Alternately you can use the "dump" operator after initializing any variables and such.
* You can now chop lists.
* Perl now uses /bin/csh to do filename globbing, if available. This means that filenames with spaces or other strangenesses work right.
* New functions: mkdir and rmdir, getppid, getpgrp and setpgrp, getpriority and setpriority, chroot, ioctl and fcntl, flock, readlink, lstat, rindex, pack and unpack, read, warn, dbmopen and dbmclose, dump, reverse, defined, undef.
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If you used ++ on a variable that had the value '' (as opposed to
being undefined) it would increment the numeric part but not
invalidate the string part, which could then give false results.
Berkeley recently sent out a patch that disables setuid #! scripts
because of an inherent problem in the semantics as they are
currently defined. If you have installed that patch, your setuid
and setgid bits are useless on scripts. I've added a means
for perl to examine those bits and emulate setuid/setgid scripts
itself in what I believe is a secure manner. If normal perl
detects such a script, it passes it off to another version of
perl that runs setuid root, and can run the script under the
desired uid/gid. This feature is optional, and Configure will
ask if you want to do it.
Some machines didn't like config.h when it said #/*undef SYMBOL.
Config.h.SH now is smart enough to tuck the # inside the comment.
There were several small problems in Configure: the return code from
ar was hidden by a piped call to sed, so if ar failed it went
undetected. The Cray uses a program called bld instead of ar.
Let's hear it for compatibilty. At least one version of gnucpp
adds a space after symbol interpolation, which was giving the
C preprocessor detector fits. There was a call to grep '-i' that
needed to have the -i protected by a backslash. Also, Configure
should remove the UU subdirectory that it makes while running.
"make realclean" now knows about the alternate patch extension ~.
In the manual page, I fixed some quotes that were ugly in troff,
and did some clarification of LIST, study, tr and unlink.
regexp.c had some redundant debugging code.
tr/x/y/ could dump core if y is shorter than x. I found this out
when I tried translating a bunch of characters to space by saying
something like y/a-z/ /.
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Some of the enhancements from Perl1 included:
* New regexp routines derived from Henry Spencer's.
o Support for /(foo|bar)/.
o Support for /(foo)*/ and /(foo)+/.
o \s for whitespace, \S for non-, \d for digit, \D nondigit
* Local variables in blocks, subroutines and evals.
* Recursive subroutine calls are now supported.
* Array values may now be interpolated into lists: unlink 'foo', 'bar', @trashcan, 'tmp';
* File globbing.
* Use of <> in array contexts returns the whole file or glob list.
* New iterator for normal arrays, foreach, that allows both read and write.
* Ability to open pipe to a forked off script for secure pipes in setuid scripts.
* File inclusion via do 'foo.pl';
* More file tests, including -t to see if, for instance, stdin is a terminal. File tests now behave in a more correct manner. You can do file tests on filehandles as well as filenames. The special filetests -T and -B test a file to see if it's text or binary.
* An eof can now be used on each file of the <> input for such purposes as resetting the line numbers or appending to each file of an inplace edit.
* Assignments can now function as lvalues, so you can say things like ($HOST = $host) =~ tr/a-z/A-Z/; ($obj = $src) =~ s/\.c$/.o/;
* You can now do certain file operations with a variable which holds the name of a filehandle, e.g. open(++$incl,$includefilename); $foo = <$incl>;
* Warnings are now available (with -w) on use of uninitialized variables and on identifiers that are mentioned only once, and on reference to various undefined things.
* There is now a wait operator.
* There is now a sort operator.
* The manual is now not lying when it says that perl is generally faster than sed. I hope.
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