perl573delta - what's new for perl v5.7.3

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To view the differences between the 5.7.0 release and the 5.7.1 release, see <a href="/5.10.0/perl571delta">perl571delta</a>. To view the differences between the 5.7.1 release and the 5.7.2 release, see <a href="/5.10.0/perl572delta">perl572delta</a>.)</p> <h1 id="Changes"><a class="permalink" href="#Changes">#</a>Changes</h1> <p>This is just a selected list of some of the more notable changes. The numbers refer to the Perl repository change numbers; see <a href="/5.10.0/Changes58">Changes58</a> (or <a href="/5.10.0/Changes">Changes</a> in Perl 5.8.1). In addition to these changes, lots of work took place in integrating threads, PerlIO, and Unicode; general code cleanup; and last but not least porting to non-UNIX lands such as Win32, VMS, Cygwin, DJGPP, VOS, MacOS Classic, and EBCDIC.</p> <dl> <dt id="11362"><a class="permalink" href="#11362">#</a><a id="pod11362"></a>11362</dt> <dd> <p>add LC_MESSAGES to POSIX :locale_h export tag</p> </dd> <dt id="11371"><a class="permalink" href="#11371">#</a><a id="pod11371"></a>11371</dt> <dd> <p>add DEL to [:cntrl:]</p> </dd> <dt id="11375"><a class="permalink" href="#11375">#</a><a id="pod11375"></a>11375</dt> <dd> <p>make h2ph understand constants like 1234L and 5678LL</p> </dd> <dt id="11405"><a class="permalink" href="#11405">#</a><a id="pod11405"></a>11405</dt> <dd> <p>Win32: fix bugs in handling of the virtualized environment</p> </dd> <dt id="11410"><a class="permalink" href="#11410">#</a><a id="pod11410"></a>11410</dt> <dd> <p>fix a bug in the security taint checking of open()</p> </dd> <dt id="11423"><a class="permalink" href="#11423">#</a><a id="pod11423"></a>11423</dt> <dd> <p>make perl fork() safe even on platforms that don't have pthread_atfork()</p> </dd> <dt id="11459"><a class="permalink" href="#11459">#</a><a id="pod11459"></a>11459</dt> <dd> <p>make switching optimization and debugging levels during Perl builds easier via the OPTIMIZE environment variable</p> </dd> <dt id="11475"><a class="permalink" href="#11475">#</a><a id="pod11475"></a>11475</dt> <dd> <p>make split()'s unused captures to be undef, not ''</p> </dd> <dt id="11485"><a class="permalink" href="#11485">#</a><a id="pod11485"></a>11485</dt> <dd> <p>Search::Dict: allow transforming lines before comparing</p> </dd> <dt id="11490"><a class="permalink" href="#11490">#</a><a id="pod11490"></a>11490</dt> <dd> <p>allow installing extra modules or bundles when building Perl</p> </dd> <dt id="11516"><a class="permalink" href="#11516">#</a><a id="pod11516"></a>11516</dt> <dd> <p>add -Wall in cflags when compiling with gcc to weed out dubious C practices</p> </dd> <dt id="11541"><a class="permalink" href="#11541">#</a><a id="pod11541"></a>11541</dt> <dd> <p>pluggable optimizer</p> </dd> <dt id="11549"><a class="permalink" href="#11549">#</a><a id="pod11549"></a>11549</dt> <dd> <p>WinCE: integrate the port</p> </dd> <dt id="11589"><a class="permalink" href="#11589">#</a><a id="pod11589"></a>11589</dt> <dd> <p>Win32: 4-arg select was broken</p> </dd> <dt id="11594"><a class="permalink" href="#11594">#</a><a id="pod11594"></a>11594</dt> <dd> <p>introduce the perlivp utility for verifying the Perl installation (IVP = Installation Verification Procedure)</p> </dd> <dt id="11623"><a class="permalink" href="#11623">#</a><a id="pod11623"></a>11623</dt> <dd> <p>rename lib/unicode to lib/unicore to avoid case-insensitivity problems with lib/Unicode</p> </dd> <dt id="111631"><a class="permalink" href="#111631">#</a><a id="pod111631"></a>111631</dt> <dd> <p>remove Time::Piece</p> </dd> <dt id="11643"><a class="permalink" href="#11643">#</a><a id="pod11643"></a>11643</dt> <dd> <p>document that use utf8 is not the right way most of the time</p> </dd> <dt id="11656"><a class="permalink" href="#11656">#</a><a id="pod11656"></a>11656</dt> <dd> <p>allow building perl with -DUSE_UTF8_SCRIPTS which makes UTF-8 the default script encoding (not the default since that would break all scripts having legacy eight-bit data in them)</p> </dd> <dt id="11725"><a class="permalink" href="#11725">#</a><a id="pod11725"></a>11725</dt> <dd> <p>division preserving 64-bit integers</p> </dd> <dt id="11743"><a class="permalink" href="#11743">#</a><a id="pod11743"></a>11743</dt> <dd> <p>document the coderef-in-@INC feature</p> </dd> <dt id="11794"><a class="permalink" href="#11794">#</a><a id="pod11794"></a>11794</dt> <dd> <p>modulo (%) preserving 64-bit integers</p> </dd> <dt id="11825"><a class="permalink" href="#11825">#</a><a id="pod11825"></a>11825</dt> <dd> <p>update to Unicode 3.1.1</p> </dd> <dt id="11865"><a class="permalink" href="#11865">#</a><a id="pod11865"></a>11865</dt> <dd> <p>add the \[$@%&*] prototype support</p> </dd> <dt id="11874"><a class="permalink" href="#11874">#</a><a id="pod11874"></a>11874</dt> <dd> <p>oct() and hex() in glorious 64 bit</p> </dd> <dt id="11877"><a class="permalink" href="#11877">#</a><a id="pod11877"></a>11877</dt> <dd> <p>Class::Struct: allow recursive classes</p> </dd> <dt id="11993"><a class="permalink" href="#11993">#</a><a id="pod11993"></a>11993</dt> <dd> <p>fix unpack U to be the reverse of pack U</p> </dd> <dt id="12056"><a class="permalink" href="#12056">#</a><a id="pod12056"></a>12056</dt> <dd> <p>VMS: waitpid enhancements</p> </dd> <dt id="12180"><a class="permalink" href="#12180">#</a><a id="pod12180"></a>12180</dt> <dd> <p>unpack("Z*Z*", pack("Z*Z*", ..)) was broken</p> </dd> <dt id="12243"><a class="permalink" href="#12243">#</a><a id="pod12243"></a>12243</dt> <dd> <p>Devel::Peek: display UTF-8 SVs also as \x{...}</p> </dd> <dt id="12288"><a class="permalink" href="#12288">#</a><a id="pod12288"></a>12288</dt> <dd> <p>Data::Dumper: option to sort hashes</p> </dd> <dt id="12542"><a class="permalink" href="#12542">#</a><a id="pod12542"></a>12542</dt> <dd> <p>add perlpodspec</p> </dd> <dt id="12652"><a class="permalink" href="#12652">#</a><a id="pod12652"></a>12652</dt> <dd> <p>threadsafe DynaLoader, re, Opcode, File::Glob, and B</p> </dd> <dt id="12756"><a class="permalink" href="#12756">#</a><a id="pod12756"></a>12756</dt> <dd> <p>support BeOS better</p> </dd> <dt id="12874"><a class="permalink" href="#12874">#</a><a id="pod12874"></a>12874</dt> <dd> <p>read-only hashes (user-level interface is Hash::Util)</p> </dd> <dt id="13162"><a class="permalink" href="#13162">#</a><a id="pod13162"></a>13162</dt> <dd> <p>add Devel::PPPort</p> </dd> <dt id="13179"><a class="permalink" href="#13179">#</a><a id="pod13179"></a>13179</dt> <dd> <p>add the sort pragma</p> </dd> <dt id="13326"><a class="permalink" href="#13326">#</a><a id="pod13326"></a>13326</dt> <dd> <p>VMS: fix perl -P</p> </dd> <dt id="13358"><a class="permalink" href="#13358">#</a><a id="pod13358"></a>13358</dt> <dd> <p>add perlpacktut</p> </dd> <dt id="13452"><a class="permalink" href="#13452">#</a><a id="pod13452"></a>13452</dt> <dd> <p>SUPER-UX: add hints file</p> </dd> <dt id="13575"><a class="permalink" href="#13575">#</a><a id="pod13575"></a>13575</dt> <dd> <p>Win32: non-blocking waitpid(-1,WNOHANG)</p> </dd> <dt id="13684"><a class="permalink" href="#13684">#</a><a id="pod13684"></a>13684</dt> <dd> <p>introduce the -t option for gentler taint checking</p> </dd> <dt id="14694"><a class="permalink" href="#14694">#</a><a id="pod14694"></a>14694</dt> <dd> <p>add the if pragma</p> </dd> <dt id="14832"><a class="permalink" href="#14832">#</a><a id="pod14832"></a>14832</dt> <dd> <p>implement IV/UV/NV/long double un/packing with j/J/F/D</p> </dd> <dt id="14854"><a class="permalink" href="#14854">#</a><a id="pod14854"></a>14854</dt> <dd> <p>document the new taint behaviour of exec LIST and system LIST</p> </dd> </dl> <h1 id="Reporting-Bugs"><a class="permalink" href="#Reporting-Bugs">#</a><a id="Reporting"></a>Reporting Bugs</h1> <p>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://bugs.perl.org. There may also be information at http://www.perl.com/, the Perl Home Page.</p> <p>If you believe you have an unreported bug, please run the <b>perlbug</b> 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 <code>perl -V</code>, will be sent off to perlbug@perl.org to be analysed by the Perl porting team.</p> <h1 id="SEE-ALSO"><a class="permalink" href="#SEE-ALSO">#</a><a id="SEE"></a>SEE ALSO</h1> <p>The <i>Changes</i> file for exhaustive details on what changed.</p> <p>The <i>INSTALL</i> file for how to build Perl.</p> <p>The <i>README</i> file for general stuff.</p> <p>The <i>Artistic</i> and <i>Copying</i> files for copyright information.</p> <h1 id="HISTORY"><a class="permalink" href="#HISTORY">#</a>HISTORY</h1> <p>Written by Jarkko Hietaniemi <<i>jhi@iki.fi</i>>, with many contributions from The Perl Porters and Perl Users submitting feedback and patches.</p> <p>Send omissions or corrections to <<i>perlbug@perl.org</i>>.</p> <div class="pod-errors"><p>44 POD Errors</p><div class="pod-errors-detail"><p>The following errors were encountered while parsing the POD:</p><dl><dt><a class="permalink" href="">#</a>Around line 32:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 36:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 40:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 44:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 48:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 52:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 57:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 61:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 65:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 69:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 74:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 78:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 82:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 86:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 91:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 96:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 100:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 104:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 110:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 114:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 118:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 122:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 126:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 130:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 134:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 138:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 142:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 146:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 150:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 154:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 158:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 162:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 166:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 170:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 174:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 178:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 182:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 186:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 190:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 194:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 198:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 202:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 206:</dt><dd><p>Expected text after =item, not a number</p></dd><dt><a class="permalink" href="">#</a>Around line 210:</dt><dd><p>Expected text after =item, not a number</p></dd></dl></div></div> </div> 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