p5pRT
commented
11 years ago From springl-perlbug@bfw-online.de
This is a bug report for perl from Stephan springl \springl\-perlbug@​bfw\-online\.de\, generated with the help of perlbug 1.39 running under perl 5.18.1.
The program
#!/usr/bin/perl format STDOUT = @\<\<\<\<\<\<\<\<\<\<\<\<\<\<\<\<\<\<\<\<\< @### {'hi'\, 1} . write;
will write hi 1 to stdout using perl version upto 5.16. Perl version 5.18 will give HASH(0x82e80d8) 0
The change was introduced by commit 705fe0e5f8a324e10c292190237cac35c5af4109\, "Don´t let format arguments `leak out´ of formline". It seems to be a problem in the lexer because replacing "{'hi\, 1}" by the two lines "{'hi'\n\, 1}" produces the desired result. Please note that the comma may not end the first line. Tracing the lexer by starting perl with -D257 gives the key change: -Reading a token: Next token is token HASHBRACK (0x0) -Shifting token HASHBRACK\, Entering state 45 +Reading a token: Next token is token '{' (0x4) +Shifting token '{'\, Entering state 74 +Reducing stack by rule 15 (line 226)\, -> remember +Entering state 191 +Reducing stack by rule 18 (line 244)\, -> stmtseq +Entering state 280
Obviously\, the lexer tries to figure out whether to return a HASHBRACK or '{' token and the decision is influenced by the presence of a comma in the first argument line.
Flags: category=core severity=medium
Site configuration information for perl 5.18.1:
Configured by Debian Project at Sun Sep 22 14:25:59 MSZ 2013.
Summary of my perl5 (revision 5 version 18 subversion 1) configuration: Commit id: ea3edeabc96995d8bfd8ed1f8c267d2d5565303c Platform: osname=linux\, osvers=3.10.12-64+\, archname=i486-linux-gnu-thread-multi-64int uname='linux lar 3.10.12-64+ #1 smp preempt mon sep 16 07:40:15 msz 2013 i686 gnulinux ' config_args='-Dusethreads -Duselargefiles -Dccflags=-DDEBIAN -D_FORTIFY_SOURCE=2 -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Dldflags= -Wl\,-z\,relro -Dlddlflags=-shared -Wl\,-z\,relro -Dcccdlflags=-fPIC -Darchname=i486-linux-gnu -Dprefix=/usr -Dprivlib=/usr/share/perl/5.18 -Darchlib=/usr/lib/perl/5.18 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendorarch=/usr/lib/perl5 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.18.1 -Dsitearch=/usr/local/lib/perl/5.18.1 -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dsiteman1dir=/usr/local/man/man1 -Dsiteman3dir=/usr/local/man/man3 -Duse64bitint -Dman1ext=1 -Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Ud_ualarm -Uusesfio -Uusenm -Ui_libutil -Uversiononly -DDEBUGGING=-g -Doptimize=-O2 -Duseshrplib -Dlibperl=libperl.so.5.18.1 -des' hint=recommended\, useposix=true\, d_sigaction=define useithreads=define\, usemultiplicity=define useperlio=define\, d_sfio=undef\, uselargefiles=define\, usesocks=undef use64bitint=define\, use64bitall=undef\, uselongdouble=undef usemymalloc=n\, bincompat5005=undef Compiler: cc='cc'\, ccflags ='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fstack-protector -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'\, optimize='-O2 -g'\, cppflags='-D_REENTRANT -D_GNU_SOURCE -DDEBIAN -fstack-protector -fno-strict-aliasing -pipe -I/usr/local/include' ccversion=''\, gccversion='4.7.3'\, gccosandvers='' intsize=4\, longsize=4\, ptrsize=4\, doublesize=8\, byteorder=12345678 d_longlong=define\, longlongsize=8\, d_longdbl=define\, longdblsize=12 ivtype='long long'\, ivsize=8\, nvtype='double'\, nvsize=8\, Off_t='off_t'\, lseeksize=8 alignbytes=4\, prototype=define Linker and Libraries: ld='cc'\, ldflags =' -fstack-protector -L/usr/local/lib' libpth=/usr/local/lib /lib/i386-linux-gnu /lib/../lib /usr/lib/i386-linux-gnu /usr/lib/../lib /lib /usr/lib /lib64 /usr/lib64 libs=-lgdbm -lgdbm_compat -ldb -ldl -lm -lpthread -lc -lcrypt perllibs=-ldl -lm -lpthread -lc -lcrypt libc=\, so=so\, useshrplib=true\, libperl=libperl.so.5.18.1 gnulibc_version='2.17' Dynamic Linking: dlsrc=dl_dlopen.xs\, dlext=so\, d_dlsymun=undef\, ccdlflags='-Wl\,-E' cccdlflags='-fPIC'\, lddlflags='-shared -L/usr/local/lib -fstack-protector'
Locally applied patches: uncommitted-changes DEBPKG:debian/cpan_definstalldirs - Provide a sensible INSTALLDIRS default for modules installed from CPAN. DEBPKG:debian/db_file_ver - http://bugs.debian.org/340047 Remove overly restrictive DB_File version check. DEBPKG:debian/doc_info - Replace generic man(1) instructions with Debian-specific information. DEBPKG:debian/enc2xs_inc - http://bugs.debian.org/290336 Tweak enc2xs to follow symlinks and ignore missing @INC directories. DEBPKG:debian/errno_ver - http://bugs.debian.org/343351 Remove Errno version check due to upgrade problems with long-running processes. DEBPKG:debian/libperl_embed_doc - http://bugs.debian.org/186778 Note that libperl-dev package is required for embedded linking DEBPKG:fixes/respect_umask - Respect umask during installation DEBPKG:debian/writable_site_dirs - Set umask approproately for site install directories DEBPKG:debian/extutils_set_libperl_path - EU:MM: Set location of libperl.a to /usr/lib DEBPKG:debian/no_packlist_perllocal - Don't install .packlist or perllocal.pod for perl or vendor DEBPKG:debian/prefix_changes - Fiddle with *PREFIX and variables written to the makefile DEBPKG:debian/fakeroot - Postpone LD_LIBRARY_PATH evaluation to the binary targets. DEBPKG:debian/instmodsh_doc - Debian policy doesn't install .packlist files for core or vendor. DEBPKG:debian/ld_run_path - Remove standard libs from LD_RUN_PATH as per Debian policy. DEBPKG:debian/libnet_config_path - Set location of libnet.cfg to /etc/perl/Net as /usr may not be writable. DEBPKG:debian/mod_paths - Tweak @INC ordering for Debian DEBPKG:debian/module_build_man_extensions - http://bugs.debian.org/479460 Adjust Module::Build manual page extensions for the Debian Perl policy DEBPKG:debian/prune_libs - http://bugs.debian.org/128355 Prune the list of libraries wanted to what we actually need. DEBPKG:fixes/net_smtp_docs - [rt.cpan.org #36038] http://bugs.debian.org/100195 Document the Net::SMTP 'Port' option DEBPKG:debian/perlivp - http://bugs.debian.org/510895 Make perlivp skip include directories in /usr/local DEBPKG:debian/cpanplus_definstalldirs - http://bugs.debian.org/533707 Configure CPANPLUS to use the site directories by default. DEBPKG:debian/cpanplus_config_path - Save local versions of CPANPLUS::Config::System into /etc/perl. DEBPKG:debian/deprecate-with-apt - http://bugs.debian.org/702096 Point users to Debian packages of deprecated core modules DEBPKG:debian/squelch-locale-warnings - http://bugs.debian.org/508764 Squelch locale warnings in Debian package maintainer scripts DEBPKG:debian/skip-upstream-git-tests - Skip tests specific to the upstream Git repository DEBPKG:debian/patchlevel - http://bugs.debian.org/567489 List packaged patches for 5.18.1-4bfw1 in patchlevel.h DEBPKG:debian/skip-kfreebsd-crash - http://bugs.debian.org/628493 [perl #96272] Skip a crashing test case in t/op/threads.t on GNU/kFreeBSD DEBPKG:fixes/document_makemaker_ccflags - http://bugs.debian.org/628522 [rt.cpan.org #68613] Document that CCFLAGS should include $Config{ccflags} DEBPKG:debian/find_html2text - http://bugs.debian.org/640479 Configure CPAN::Distribution with correct name of html2text DEBPKG:debian/hurd_test_todo_syslog - http://bugs.debian.org/650093 Disable failing GNU/Hurd tests in cpan/Sys-Syslog/t/syslog.t DEBPKG:debian/hurd_test_skip_sigdispatch - http://bugs.debian.org/650188 Disable failing GNU/Hurd tests op/sigdispatch.t DEBPKG:debian/hurd_test_skip_stack - http://bugs.debian.org/650175 Disable failing GNU/Hurd tests dist/threads/t/stack.t DEBPKG:debian/hurd_test_skip_pipe - http://bugs.debian.org/650187 Disable failing GNU/Hurd tests io/pipe.t DEBPKG:debian/hurd_test_skip_io_pipe - http://bugs.debian.org/650096 Disable failing GNU/Hurd tests dist/IO/t/io_pipe.t DEBPKG:fixes/manpage_name_Test-Harness - http://bugs.debian.org/650451 [rt.cpan.org #73399] cpan/Test-Harness: add NAME headings in modules with POD DEBPKG:debian/makemaker-pasthru - http://bugs.debian.org/660195 [rt.cpan.org #28632] Make EU::MM pass LD through to recursive Makefile.PL invocations DEBPKG:debian/perl5db-x-terminal-emulator.patch - http://bugs.debian.org/668490 Invoke x-terminal-emulator rather than xterm in perl5db.pl DEBPKG:debian/cpan-missing-site-dirs - http://bugs.debian.org/688842 Fix CPAN::FirstTime defaults with nonexisting site dirs if a parent is writable DEBPKG:debian/hurd_net_ping_disable_test - http://bugs.debian.org/709385 Disable failing Net-Ping tests for GNU/Hurd DEBPKG:fixes/memoize_storable_nstore - [rt.cpan.org #77790] http://bugs.debian.org/587650 Memoize::Storable: respect 'nstore' option not respected DEBPKG:fixes/net_ftp_failed_command - [rt.cpan.org #37700] http://bugs.debian.org/491062 Net::FTP: cope gracefully with a failed command DEBPKG:fixes/perlbug-patchlist - [3541c11] http://bugs.debian.org/710842 [perl #118433] Make perlbug look up the list of local patches at run time DEBPKG:fixes/regexp-preserve - http://bugs.debian.org/718209 [perl #118213] [f4194b2] RT #118213: handle $r=qr/.../; /$r/p properly DEBPKG:fixes/regexp-preserve-testcases - http://bugs.debian.org/718209 [perl #118213] [4d7b2f5] Disable new //p tests DEBPKG:fixes/module_metadata_security_doc - [68cdd4b] CVE-2013-1437 documentation fix DEBPKG:fixes/module_metadata_taint_fix - [bff978f] http://bugs.debian.org/722210 [rt.cpan.org #88576] untaint version\, if needed\, in Module::Metadata
@INC for perl 5.18.1: /etc/perl /usr/local/lib/perl/5.18.1 /usr/local/share/perl/5.18.1 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.18 /usr/share/perl/5.18 /usr/local/lib/site_perl .
Environment for perl 5.18.1: HOME=/home/springl LANG (unset) LANGUAGE (unset) LC_CTYPE=de_DE LD_LIBRARY_PATH (unset) LOGDIR (unset) PATH=/home/springl/bin:/home/springl/bin:/home/springl/local/bin:.:/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games:/bfw/bin:/usr/ASQL/bin:/usr/ASQL/diag:/home/src/appl/verwaltung/bin PERL_BADLANG (unset) SHELL=/bin/bash
Migrated from rt.perl.org#119973 (status was 'resolved')
Searchable as RT119973$