PERL5141DELTA(1) Perl Programmers Reference Guide PERL5141DELTA(1) #
PERL5141DELTA(1) Perl Programmers Reference Guide PERL5141DELTA(1)
NNAAMMEE #
perl5141delta - what is new for perl v5.14.1
DDEESSCCRRIIPPTTIIOONN #
This document describes differences between the 5.14.0 release and the
5.14.1 release.
If you are upgrading from an earlier release such as 5.12.0, first read
perl5140delta, which describes differences between 5.12.0 and 5.14.0.
CCoorree EEnnhhaanncceemmeennttss No changes since 5.14.0.
SSeeccuurriittyy No changes since 5.14.0.
IInnccoommppaattiibbllee CChhaannggeess There are no changes intentionally incompatible with 5.14.0. If any exist, they are bugs and reports are welcome.
DDeepprreeccaattiioonnss There have been no deprecations since 5.14.0.
MMoodduulleess aanndd PPrraaggmmaattaa NNeeww MMoodduulleess aanndd PPrraaggmmaattaa None
UUppddaatteedd MMoodduulleess aanndd PPrraaggmmaattaa • B::Deparse has been upgraded from version 1.03 to 1.04, to address two regressions in Perl 5.14.0:
Deparsing of the "glob" operator and its diamond ("<>") form now
works again. [perl #90898]
The presence of subroutines named "::::" or "::::::" no longer causes
B::Deparse to hang.
• Pod::Perldoc has been upgraded from version 3.15_03 to 3.15_04.
It corrects the search paths on VMS. [perl #90640]
RReemmoovveedd MMoodduulleess aanndd PPrraaggmmaattaa None
DDooccuummeennttaattiioonn NNeeww DDooccuummeennttaattiioonn None
CChhaannggeess ttoo EExxiissttiinngg DDooccuummeennttaattiioonn _p_e_r_l_f_u_n_c
• "given", "when" and "default" are now listed in perlfunc.
• Documentation for "use" now includes a pointer to _i_f_._p_m.
_p_e_r_l_l_o_l
• perllol has been expanded with examples using the new "push $scalar"
syntax introduced in Perl 5.14.0.
_p_e_r_l_o_p
• The explanation of bitwise operators has been expanded to explain how
they work on Unicode strings.
• The section on the triple-dot or yada-yada operator has been moved
up, as it used to separate two closely related sections about the
comma operator.
• More examples for "m//g" have been added.
• The "<<\FOO" here-doc syntax has been documented.
_p_e_r_l_r_u_n
• perlrun has undergone a significant clean-up. Most notably, the
--00xx...... form of the --00 flag has been clarified, and the final section
on environment variables has been corrected and expanded.
_P_O_S_I_X #
• The invocation documentation for "WIFEXITED", "WEXITSTATUS",
"WIFSIGNALED", "WTERMSIG", "WIFSTOPPED", and "WSTOPSIG" was
corrected.
DDiiaaggnnoossttiiccss The following additions or changes have been made to diagnostic output, including warnings and fatal error messages. For the complete list of diagnostic messages, see perldiag.
NNeeww DDiiaaggnnoossttiiccss None
CChhaannggeess ttoo EExxiissttiinngg DDiiaaggnnoossttiiccss None
UUttiilliittyy CChhaannggeess None
CCoonnffiigguurraattiioonn aanndd CCoommppiillaattiioonn • _r_e_g_e_x_p_._h has been modified for compatibility with GCC’s “-Werror” option, as used by some projects that include perl’s header files.
TTeessttiinngg • Some test failures in _d_i_s_t_/_L_o_c_a_l_e_-_M_a_k_e_t_e_x_t_/_t_/_0_9___c_o_m_p_i_l_e_._t that could occur depending on the environment have been fixed. [perl #89896]
• A watchdog timer for _t_/_r_e_/_r_e_._t was lengthened to accommodate SH-4
systems which were unable to complete the tests before the previous
timer ran out.
PPllaattffoorrmm SSuuppppoorrtt NNeeww PPllaattffoorrmmss None
DDiissccoonnttiinnuueedd PPllaattffoorrmmss None
PPllaattffoorrmm--SSppeecciiffiicc NNootteess _S_o_l_a_r_i_s
• Documentation listing the Solaris packages required to build Perl on
Solaris 9 and Solaris 10 has been corrected.
_M_a_c _O_S _X
• The _l_i_b_/_l_o_c_a_l_e_._t test script has been updated to work on the upcoming
Lion release.
• Mac OS X specific compilation instructions have been clarified.
_U_b_u_n_t_u _L_i_n_u_x
• The ODBM_File installation process has been updated with the new
library paths on Ubuntu natty.
IInntteerrnnaall CChhaannggeess • The compiled representation of formats is now stored via the mg_ptr of their PERL_MAGIC_fm. Previously it was stored in the string buffer, beyond SSvvLLEENN(()), the regular end of the string. SSvvCCOOMMPPIILLEEDD(()) and SvCOMPILED_{on,off}() now exist solely for compatibility for XS code. The first is always 0, the other two now no-ops.
BBuugg FFiixxeess • A bug has been fixed that would cause a “Use of freed value in iteration” error if the next two hash elements that would be iterated over are deleted. [perl #85026]
• Passing the same constant subroutine to both "index" and "formline"
no longer causes one or the other to fail. [perl #89218]
• 5.14.0 introduced some memory leaks in regular expression character
classes such as "[\w\s]", which have now been fixed.
• An edge case in regular expression matching could potentially loop.
This happened only under "/i" in bracketed character classes that
have characters with multi-character folds, and the target string to
match against includes the first portion of the fold, followed by
another character that has a multi-character fold that begins with
the remaining portion of the fold, plus some more.
"s\N{U+DF}" =~ /[\x{DF}foo]/i
is one such case. "\xDF" folds to "ss".
• Several Unicode case-folding bugs have been fixed.
• The new (in 5.14.0) regular expression modifier "/a" when repeated
like "/aa" forbids the characters outside the ASCII range that match
characters inside that range from matching under "/i". This did not
work under some circumstances, all involving alternation, such as:
"\N{KELVIN SIGN}" =~ /k|foo/iaa;
succeeded inappropriately. This is now fixed.
• Fixed a case where it was possible that a freed buffer may have been
read from when parsing a here document.
AAcckknnoowwlleeddggeemmeennttss Perl 5.14.1 represents approximately four weeks of development since Perl 5.14.0 and contains approximately 3500 lines of changes across 38 files from 17 authors.
Perl continues to flourish into its third decade thanks to a vibrant
community of users and developers. The following people are known to
have contributed the improvements that became Perl 5.14.1:
Bo Lindbergh, Claudio Ramirez, Craig A. Berry, David Leadbeater, Father
Chrysostomos, Jesse Vincent, Jim Cromie, Justin Case, Karl Williamson,
Leo Lapworth, Nicholas Clark, Nobuhiro Iwamatsu, smash, Tom Christiansen,
Ton Hospel, Vladimir Timofeev, and Zsbán Ambrus.
RReeppoorrttiinngg BBuuggss If you find what you think is a bug, you might check the articles recently posted to the comp.lang.perl.misc newsgroup and the perl bug database at http://rt.perl.org/perlbug/ . There may also be information at http://www.perl.org/ , the Perl Home Page.
If you believe you have an unreported bug, please run the perlbug program
included with your release. Be sure to trim your bug down to a tiny but
sufficient test case. Your bug report, along with the output of "perl
-V", will be sent off to perlbug@perl.org to be analysed by the Perl
porting team.
If the bug you are reporting has security implications, which make it
inappropriate to send to a publicly archived mailing list, then please
send it to perl5-security-report@perl.org. This points to a closed
subscription unarchived mailing list, which includes all the core
committers, who be able to help assess the impact of issues, figure out a
resolution, and help co-ordinate the release of patches to mitigate or
fix the problem across all platforms on which Perl is supported. Please
only use this address for security issues in the Perl core, not for
modules independently distributed on CPAN.
SSEEEE AALLSSOO #
The _C_h_a_n_g_e_s file for an explanation of how to view exhaustive details on
what changed.
The _I_N_S_T_A_L_L file for how to build Perl.
The _R_E_A_D_M_E file for general stuff.
The _A_r_t_i_s_t_i_c and _C_o_p_y_i_n_g files for copyright information.
perl v5.36.3 2013-03-25 PERL5141DELTA(1)