diff options
| -rw-r--r-- | MANIFEST | 1 | ||||
| -rwxr-xr-x | Makefile.SH | 8 | ||||
| -rw-r--r-- | Porting/epigraphs.pod | 2 | ||||
| -rw-r--r-- | pod/.gitignore | 2 | ||||
| -rw-r--r-- | pod/perl.pod | 1 | ||||
| -rw-r--r-- | pod/perl52512delta.pod | 140 | ||||
| -rw-r--r-- | pod/perldelta.pod | 356 | ||||
| -rw-r--r-- | vms/descrip_mms.template | 2 | ||||
| -rw-r--r-- | win32/GNUmakefile | 4 | ||||
| -rw-r--r-- | win32/Makefile | 4 | ||||
| -rw-r--r-- | win32/makefile.mk | 4 | ||||
| -rw-r--r-- | win32/pod.mak | 4 |
12 files changed, 472 insertions, 56 deletions
@@ -4934,6 +4934,7 @@ pod/perl5241delta.pod Perl changes in version 5.24.1 pod/perl5250delta.pod Perl changes in version 5.25.0 pod/perl52510delta.pod Perl changes in version 5.25.10 pod/perl52511delta.pod Perl changes in version 5.25.11 +pod/perl52512delta.pod Perl changes in version 5.25.12 pod/perl5251delta.pod Perl changes in version 5.25.1 pod/perl5252delta.pod Perl changes in version 5.25.2 pod/perl5253delta.pod Perl changes in version 5.25.3 diff --git a/Makefile.SH b/Makefile.SH index b6df92d299..4f381087bb 100755 --- a/Makefile.SH +++ b/Makefile.SH @@ -570,7 +570,7 @@ esac $spitshell >>$Makefile <<'!NO!SUBS!' -perltoc_pod_prereqs = extra.pods pod/perl52512delta.pod pod/perlapi.pod pod/perlintern.pod pod/perlmodlib.pod pod/perluniprops.pod +perltoc_pod_prereqs = extra.pods pod/perl52513delta.pod pod/perlapi.pod pod/perlintern.pod pod/perlmodlib.pod pod/perluniprops.pod generated_pods = pod/perltoc.pod $(perltoc_pod_prereqs) generated_headers = uudmap.h bitcount.h mg_data.h @@ -1120,9 +1120,9 @@ pod/perlintern.pod: $(MINIPERL_EXE) autodoc.pl embed.fnc pod/perlmodlib.pod: $(MINIPERL_EXE) pod/perlmodlib.PL MANIFEST $(MINIPERL) pod/perlmodlib.PL -q -pod/perl52512delta.pod: pod/perldelta.pod - $(RMS) pod/perl52512delta.pod - $(LNS) perldelta.pod pod/perl52512delta.pod +pod/perl52513delta.pod: pod/perldelta.pod + $(RMS) pod/perl52513delta.pod + $(LNS) perldelta.pod pod/perl52513delta.pod extra.pods: $(MINIPERL_EXE) -@test ! -f extra.pods || rm -f `cat extra.pods` diff --git a/Porting/epigraphs.pod b/Porting/epigraphs.pod index 928db13b41..5703579eb5 100644 --- a/Porting/epigraphs.pod +++ b/Porting/epigraphs.pod @@ -19,7 +19,7 @@ Consult your favorite dictionary for details. =head2 v5.25.12 - Kurt Vonnegut, Slaughterhouse-Five -L<Announced on 2017-04-20 by Sawyer X|> +Announced on 2017-04-20 by Sawyer X I have told my sons that they are not under any circumstances to take part in massacres, and that the news of massacres of enemies is not diff --git a/pod/.gitignore b/pod/.gitignore index c172130729..a06b7f758f 100644 --- a/pod/.gitignore +++ b/pod/.gitignore @@ -50,7 +50,7 @@ /roffitall # generated -/perl52512delta.pod +/perl52513delta.pod /perlapi.pod /perlintern.pod /perlmodlib.pod diff --git a/pod/perl.pod b/pod/perl.pod index 152b08251e..46f746558e 100644 --- a/pod/perl.pod +++ b/pod/perl.pod @@ -181,6 +181,7 @@ aux h2ph h2xs perlbug pl2pm pod2html pod2man splain xsubpp perlhist Perl history records perldelta Perl changes since previous version + perl52512delta Perl changes in version 5.25.12 perl52511delta Perl changes in version 5.25.11 perl52510delta Perl changes in version 5.25.10 perl5259delta Perl changes in version 5.25.9 diff --git a/pod/perl52512delta.pod b/pod/perl52512delta.pod new file mode 100644 index 0000000000..9ef471e859 --- /dev/null +++ b/pod/perl52512delta.pod @@ -0,0 +1,140 @@ +=encoding utf8 + +=head1 NAME + +perl52512delta - what is new for perl v5.25.12 + +=head1 DESCRIPTION + +This document describes differences between the 5.25.11 release and the 5.25.12 +release. + +If you are upgrading from an earlier release such as 5.25.10, first read +L<perl52511delta>, which describes differences between 5.25.10 and 5.25.11. + +=head1 Modules and Pragmata + +=head2 Updated Modules and Pragmata + +=over 4 + +=item * + +L<base> has been upgraded from version 2.24 to 2.25. + +=item * + +L<CPAN> has been upgraded from version 2.17 to 2.18. + +=item * + +L<DynaLoader> has been upgraded from version 1.41 to 1.42. + +=item * + +L<Module::CoreList> has been upgraded from version 5.20170320 to +5.20170420. + +=item * + +L<Safe> has been upgraded from version 2.39 to 2.40. + +=item * + +L<threads::shared> has been upgraded from version 1.55 to 1.56. + +=item * + +L<XSLoader> has been upgraded from version 0.26 to 0.27. + +=back + +=head1 Diagnostics + +=head2 New Diagnostics + +=head3 New Errors + +=over 4 + +=item * + +Since C<.> is now removed from C<@INC> by default, C<do> will now trigger +a warning recommending to fix the C<do> statement: + +L<do "%s" failed, '.' is no longer in @INC|perldiag/do "%s" failed, '.' is no longer in @INC; did you mean do ".E<sol>%s"?> + +=back + +=head2 Changes to Existing Diagnostics + +=over 4 + +=item * + +When a C<require> fails, we now do not provide C<@INC> when the C<require> +is for a file instead of a module. + +=item * + +When C<@INC> is not scanned for a C<require> call, we no longer display +C<@INC> to avoid confusion. + +=back + +=head1 Acknowledgements + +Perl 5.25.12 represents approximately 4 weeks of development since Perl 5.25.11 +and contains approximately 1,700 lines of changes across 150 files from 8 +authors. + +Excluding auto-generated files, documentation and release tools, there were +approximately 700 lines of changes to 73 .pm, .t, .c and .h files. + +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 5.25.12: + +Chris 'BinGOs' Williams, Dagfinn Ilmari Mannsåker, David Mitchell, James E +Keenan, Jarkko Hietaniemi, Karl Williamson, Pali, Sawyer X. + +The list above is almost certainly incomplete as it is automatically generated +from version control history. In particular, it does not include the names of +the (very much appreciated) contributors who reported issues to the Perl bug +tracker. + +Many of the changes included in this version originated in the CPAN modules +included in Perl's core. We're grateful to the entire CPAN community for +helping Perl to flourish. + +For a more complete list of all of Perl's historical contributors, please see +the F<AUTHORS> file in the Perl source distribution. + +=head1 Reporting Bugs + +If you find what you think is a bug, you might check the perl bug database +at L<https://rt.perl.org/> . There may also be information at +L<http://www.perl.org/> , the Perl Home Page. + +If you believe you have an unreported bug, please run the L<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 C<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 see +L<perlsec/SECURITY VULNERABILITY CONTACT INFORMATION> +for details of how to report the issue. + +=head1 SEE ALSO + +The F<Changes> file for an explanation of how to view exhaustive details on +what changed. + +The F<INSTALL> file for how to build Perl. + +The F<README> file for general stuff. + +The F<Artistic> and F<Copying> files for copyright information. + +=cut diff --git a/pod/perldelta.pod b/pod/perldelta.pod index e289890943..d0c5bf6af5 100644 --- a/pod/perldelta.pod +++ b/pod/perldelta.pod @@ -2,113 +2,383 @@ =head1 NAME -perldelta - what is new for perl v5.25.12 +[ this is a template for a new perldelta file. Any text flagged as XXX needs +to be processed before release. ] + +perldelta - what is new for perl v5.25.13 =head1 DESCRIPTION -This document describes differences between the 5.25.11 release and the 5.25.12 +This document describes differences between the 5.25.12 release and the 5.25.13 release. -If you are upgrading from an earlier release such as 5.25.10, first read -L<perl52511delta>, which describes differences between 5.25.10 and 5.25.11. +If you are upgrading from an earlier release such as 5.25.11, first read +L<perl52512delta>, which describes differences between 5.25.11 and 5.25.12. -=head1 Modules and Pragmata +=head1 Notice -=head2 Updated Modules and Pragmata +XXX Any important notices here + +=head1 Core Enhancements + +XXX New core language features go here. Summarize user-visible core language +enhancements. Particularly prominent performance optimisations could go +here, but most should go in the L</Performance Enhancements> section. + +[ List each enhancement as a =head2 entry ] + +=head1 Security + +XXX Any security-related notices go here. In particular, any security +vulnerabilities closed should be noted here rather than in the +L</Selected Bug Fixes> section. + +[ List each security issue as a =head2 entry ] + +=head1 Incompatible Changes + +XXX For a release on a stable branch, this section aspires to be: + + There are no changes intentionally incompatible with 5.XXX.XXX + If any exist, they are bugs, and we request that you submit a + report. See L</Reporting Bugs> below. + +[ List each incompatible change as a =head2 entry ] + +=head1 Deprecations + +XXX Any deprecated features, syntax, modules etc. should be listed here. + +=head2 Module removals + +XXX Remove this section if inapplicable. + +The following modules will be removed from the core distribution in a +future release, and will at that time need to be installed from CPAN. +Distributions on CPAN which require these modules will need to list them as +prerequisites. + +The core versions of these modules will now issue C<"deprecated">-category +warnings to alert you to this fact. To silence these deprecation warnings, +install the modules in question from CPAN. + +Note that these are (with rare exceptions) fine modules that you are encouraged +to continue to use. Their disinclusion from core primarily hinges on their +necessity to bootstrapping a fully functional, CPAN-capable Perl installation, +not usually on concerns over their design. + +=over + +=item XXX + +XXX Note that deprecated modules should be listed here even if they are listed +as an updated module in the L</Modules and Pragmata> section. + +=back + +[ List each other deprecation as a =head2 entry ] + +=head1 Performance Enhancements + +XXX Changes which enhance performance without changing behaviour go here. +There may well be none in a stable release. + +[ List each enhancement as a =item entry ] =over 4 =item * -L<base> has been upgraded from version 2.24 to 2.25. +XXX -=item * +=back -L<CPAN> has been upgraded from version 2.17 to 2.18. +=head1 Modules and Pragmata -=item * +XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/> +go here. If Module::CoreList is updated, generate an initial draft of the +following sections using F<Porting/corelist-perldelta.pl>. A paragraph summary +for important changes should then be added by hand. In an ideal world, +dual-life modules would have a F<Changes> file that could be cribbed. + +[ Within each section, list entries as a =item entry ] -L<DynaLoader> has been upgraded from version 1.41 to 1.42. +=head2 New Modules and Pragmata + +=over 4 =item * -L<Module::CoreList> has been upgraded from version 5.20170320 to -5.20170420. +XXX + +=back + +=head2 Updated Modules and Pragmata + +=over 4 =item * -L<Safe> has been upgraded from version 2.39 to 2.40. +L<XXX> has been upgraded from version A.xx to B.yy. + +=back + +=head2 Removed Modules and Pragmata + +=over 4 =item * -L<threads::shared> has been upgraded from version 1.55 to 1.56. +XXX + +=back + +=head1 Documentation + +XXX Changes to files in F<pod/> go here. Consider grouping entries by +file and be sure to link to the appropriate page, e.g. L<perlfunc>. + +=head2 New Documentation + +XXX Changes which create B<new> files in F<pod/> go here. + +=head3 L<XXX> + +XXX Description of the purpose of the new file here + +=head2 Changes to Existing Documentation + +XXX Changes which significantly change existing files in F<pod/> go here. +However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics> +section. + +=head3 L<XXX> + +=over 4 =item * -L<XSLoader> has been upgraded from version 0.26 to 0.27. +XXX Description of the change here =back =head1 Diagnostics +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 L<perldiag>. + +XXX New or changed warnings emitted by the core's C<C> code go here. Also +include any changes in L<perldiag> that reconcile it to the C<C> code. + =head2 New Diagnostics +XXX Newly added diagnostic messages go under here, separated into New Errors +and New Warnings + =head3 New Errors =over 4 =item * -Since C<.> is now removed from C<@INC> by default, C<do> will now trigger -a warning recommending to fix the C<do> statement: +XXX L<message|perldiag/"message"> + +=back + +=head3 New Warnings + +=over 4 + +=item * -L<do "%s" failed, '.' is no longer in @INC|perldiag/do "%s" failed, '.' is no longer in @INC; did you mean do ".E<sol>%s"?> +XXX L<message|perldiag/"message"> =back =head2 Changes to Existing Diagnostics +XXX Changes (i.e. rewording) of diagnostic messages go here + =over 4 =item * -When a C<require> fails, we now do not provide C<@INC> when the C<require> -is for a file instead of a module. +XXX Describe change here + +=back + +=head1 Utility Changes + +XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here. +Most of these are built within the directory F<utils>. + +[ List utility changes as a =head2 entry for each utility and =item +entries for each change +Use L<XXX> with program names to get proper documentation linking. ] + +=head2 L<XXX> + +=over 4 =item * -When C<@INC> is not scanned for a C<require> call, we no longer display -C<@INC> to avoid confusion. +XXX =back -=head1 Acknowledgements +=head1 Configuration and Compilation -Perl 5.25.12 represents approximately 4 weeks of development since Perl 5.25.11 -and contains approximately 1,700 lines of changes across 150 files from 8 -authors. +XXX Changes to F<Configure>, F<installperl>, F<installman>, and analogous tools +go here. Any other changes to the Perl build process should be listed here. +However, any platform-specific changes should be listed in the +L</Platform Support> section, instead. -Excluding auto-generated files, documentation and release tools, there were -approximately 700 lines of changes to 73 .pm, .t, .c and .h files. +[ List changes as a =item entry ]. -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 5.25.12: +=over 4 -Chris 'BinGOs' Williams, Dagfinn Ilmari Mannsåker, David Mitchell, James E -Keenan, Jarkko Hietaniemi, Karl Williamson, Pali, Sawyer X. +=item * -The list above is almost certainly incomplete as it is automatically generated -from version control history. In particular, it does not include the names of -the (very much appreciated) contributors who reported issues to the Perl bug -tracker. +XXX + +=back + +=head1 Testing + +XXX Any significant changes to the testing of a freshly built perl should be +listed here. Changes which create B<new> files in F<t/> go here as do any +large changes to the testing harness (e.g. when parallel testing was added). +Changes to existing files in F<t/> aren't worth summarizing, although the bugs +that they represent may be covered elsewhere. + +[ List each test improvement as a =item entry ] + +=over 4 + +=item * + +XXX + +=back + +=head1 Platform Support + +XXX Any changes to platform support should be listed in the sections below. + +[ Within the sections, list each platform as a =item entry with specific +changes as paragraphs below it. ] + +=head2 New Platforms + +XXX List any platforms that this version of perl compiles on, that previous +versions did not. These will either be enabled by new files in the F<hints/> +directories, or new subdirectories and F<README> files at the top level of the +source tree. + +=over 4 + +=item XXX-some-platform + +XXX + +=back + +=head2 Discontinued Platforms + +XXX List any platforms that this version of perl no longer compiles on. + +=over 4 + +=item XXX-some-platform + +XXX + +=back + +=head2 Platform-Specific Notes + +XXX List any changes for specific platforms. This could include configuration +and compilation changes or changes in portability/compatibility. However, +changes within modules for platforms should generally be listed in the +L</Modules and Pragmata> section. + +=over 4 + +=item XXX-some-platform + +XXX + +=back + +=head1 Internal Changes + +XXX Changes which affect the interface available to C<XS> code go here. Other +significant internal changes for future core maintainers should be noted as +well. + +[ List each change as a =item entry ] + +=over 4 + +=item * + +XXX + +=back + +=head1 Selected Bug Fixes + +XXX Important bug fixes in the core language are summarized here. Bug fixes in +files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>. + +[ List each fix as a =item entry ] + +=over 4 + +=item * + +XXX + +=back + +=head1 Known Problems + +XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any +tests that had to be C<TODO>ed for the release would be noted here. Unfixed +platform specific bugs also go here. + +[ List each fix as a =item entry ] + +=over 4 + +=item * + +XXX + +=back + +=head1 Errata From Previous Releases + +=over 4 + +=item * + +XXX Add anything here that we forgot to add, or were mistaken about, in +the perldelta of a previous release. + +=back + +=head1 Obituary + +XXX If any significant core contributor has died, we've added a short obituary +here. + +=head1 Acknowledgements -Many of the changes included in this version originated in the CPAN modules -included in Perl's core. We're grateful to the entire CPAN community for -helping Perl to flourish. +XXX Generate this with: -For a more complete list of all of Perl's historical contributors, please see -the F<AUTHORS> file in the Perl source distribution. + perl Porting/acknowledgements.pl v5.25.5..HEAD =head1 Reporting Bugs diff --git a/vms/descrip_mms.template b/vms/descrip_mms.template index 1b5f0c6ada..bbcd29d2e4 100644 --- a/vms/descrip_mms.template +++ b/vms/descrip_mms.template @@ -307,7 +307,7 @@ utils : $(utils1) $(utils2) $(utils3) $(utils4) $(utils5) extra.pods : miniperl @ @extra_pods.com -PERLDELTA_CURRENT = [.pod]perl52512delta.pod +PERLDELTA_CURRENT = [.pod]perl52513delta.pod $(PERLDELTA_CURRENT) : [.pod]perldelta.pod Copy/NoConfirm/Log $(MMS$SOURCE) $(PERLDELTA_CURRENT) diff --git a/win32/GNUmakefile b/win32/GNUmakefile index ce8d615b06..191e4e494a 100644 --- a/win32/GNUmakefile +++ b/win32/GNUmakefile @@ -1637,7 +1637,7 @@ utils: $(HAVEMINIPERL) ..\utils\Makefile copy ..\README.tw ..\pod\perltw.pod copy ..\README.vos ..\pod\perlvos.pod copy ..\README.win32 ..\pod\perlwin32.pod - copy ..\pod\perldelta.pod ..\pod\perl52512delta.pod + copy ..\pod\perldelta.pod ..\pod\perl52513delta.pod $(MINIPERL) -I..\lib $(PL2BAT) $(UTILS) $(MINIPERL) -I..\lib ..\autodoc.pl .. $(MINIPERL) -I..\lib ..\pod\perlmodlib.PL -q .. @@ -1734,7 +1734,7 @@ distclean: realclean -if exist $(LIBDIR)\Win32API rmdir /s /q $(LIBDIR)\Win32API -if exist $(LIBDIR)\XS rmdir /s /q $(LIBDIR)\XS -cd $(PODDIR) && del /f *.html *.bat roffitall \ - perl52512delta.pod perlaix.pod perlamiga.pod perlandroid.pod \ + perl52513delta.pod perlaix.pod perlamiga.pod perlandroid.pod \ perlapi.pod perlbs2000.pod perlce.pod perlcn.pod perlcygwin.pod \ perldos.pod perlfreebsd.pod perlhaiku.pod perlhpux.pod \ perlhurd.pod perlintern.pod perlirix.pod perljp.pod perlko.pod \ diff --git a/win32/Makefile b/win32/Makefile index 19d1437c50..4844e91e21 100644 --- a/win32/Makefile +++ b/win32/Makefile @@ -1260,7 +1260,7 @@ utils: $(PERLEXE) ..\utils\Makefile copy ..\README.tw ..\pod\perltw.pod copy ..\README.vos ..\pod\perlvos.pod copy ..\README.win32 ..\pod\perlwin32.pod - copy ..\pod\perldelta.pod ..\pod\perl52512delta.pod + copy ..\pod\perldelta.pod ..\pod\perl52513delta.pod cd ..\win32 $(PERLEXE) $(PL2BAT) $(UTILS) $(MINIPERL) -I..\lib ..\autodoc.pl .. @@ -1359,7 +1359,7 @@ distclean: realclean -if exist $(LIBDIR)\Win32API rmdir /s /q $(LIBDIR)\Win32API -if exist $(LIBDIR)\XS rmdir /s /q $(LIBDIR)\XS -cd $(PODDIR) && del /f *.html *.bat roffitall \ - perl52512delta.pod perlaix.pod perlamiga.pod perlandroid.pod \ + perl52513delta.pod perlaix.pod perlamiga.pod perlandroid.pod \ perlapi.pod perlbs2000.pod perlce.pod perlcn.pod perlcygwin.pod \ perldos.pod perlfreebsd.pod perlhaiku.pod perlhpux.pod \ perlhurd.pod perlintern.pod perlirix.pod perljp.pod perlko.pod \ diff --git a/win32/makefile.mk b/win32/makefile.mk index 71947b5670..2496294702 100644 --- a/win32/makefile.mk +++ b/win32/makefile.mk @@ -1574,7 +1574,7 @@ utils: $(HAVEMINIPERL) ..\utils\Makefile copy ..\README.tw ..\pod\perltw.pod copy ..\README.vos ..\pod\perlvos.pod copy ..\README.win32 ..\pod\perlwin32.pod - copy ..\pod\perldelta.pod ..\pod\perl52512delta.pod + copy ..\pod\perldelta.pod ..\pod\perl52513delta.pod $(MINIPERL) -I..\lib $(PL2BAT) $(UTILS) $(MINIPERL) -I..\lib ..\autodoc.pl .. $(MINIPERL) -I..\lib ..\pod\perlmodlib.PL -q .. @@ -1672,7 +1672,7 @@ distclean: realclean -if exist $(LIBDIR)\Win32API rmdir /s /q $(LIBDIR)\Win32API -if exist $(LIBDIR)\XS rmdir /s /q $(LIBDIR)\XS -cd $(PODDIR) && del /f *.html *.bat roffitall \ - perl52512delta.pod perlaix.pod perlamiga.pod perlandroid.pod \ + perl52513delta.pod perlaix.pod perlamiga.pod perlandroid.pod \ perlapi.pod perlbs2000.pod perlce.pod perlcn.pod perlcygwin.pod \ perldos.pod perlfreebsd.pod perlhaiku.pod perlhpux.pod \ perlhurd.pod perlintern.pod perlirix.pod perljp.pod perlko.pod \ diff --git a/win32/pod.mak b/win32/pod.mak index f055c2157e..ba1197c2f5 100644 --- a/win32/pod.mak +++ b/win32/pod.mak @@ -50,6 +50,7 @@ POD = perl.pod \ perl52510delta.pod \ perl52511delta.pod \ perl52512delta.pod \ + perl52513delta.pod \ perl5251delta.pod \ perl5252delta.pod \ perl5253delta.pod \ @@ -204,6 +205,7 @@ MAN = perl.man \ perl52510delta.man \ perl52511delta.man \ perl52512delta.man \ + perl52513delta.man \ perl5251delta.man \ perl5252delta.man \ perl5253delta.man \ @@ -358,6 +360,7 @@ HTML = perl.html \ perl52510delta.html \ perl52511delta.html \ perl52512delta.html \ + perl52513delta.html \ perl5251delta.html \ perl5252delta.html \ perl5253delta.html \ @@ -512,6 +515,7 @@ TEX = perl.tex \ perl52510delta.tex \ perl52511delta.tex \ perl52512delta.tex \ + perl52513delta.tex \ perl5251delta.tex \ perl5252delta.tex \ perl5253delta.tex \ |