Here-document length bug

[p5pRT]

Migrated from rt.perl.org#33128 (status was 'resolved')

Searchable as RT33128$

[p5pRT]

From [email protected]

To​: perlbug@​perl.org
Subject​: here-document bug
Cc​: dmcallis@​es.com
Reply-To​: dmcallis@​es.com
Message-Id​: <5.8.0_21696_1103578388@​adev1>

This is a bug report for perl from dmcallis@​es.com,
generated with the help of perlbug 1.34 running under perl v5.8.0.

I was using the "Here" document syntax to document the usage of a
script. As I
added functionality, I would add to the here-document. As I added one
trivial
function, my script started having parsing errors a few hundred lines
away with
a string that included ///"" (in order to result in /" when passed
through a
different application. I figured out a work-around, but was puzzled.
Then I
added more functionality and found that the same thing occured again,
this time
on a different line. I finally took the time to track it down to the
here-
document. I saved the here-document in a 33 line file and used wc to
figure
out that 1833 characters was the limit. When I added just one
character, I got
a parsing error about four hundred lines away.

The parse error showed up for a line that read

  push (@​avery_common, "+define+USER_TESTS=\\\"" . $es_tests_file
. "\\\'');

the first time, and the second time, for a line the exact same distance
away.

---

Flags​:
  category=core
  severity=medium

---

Site configuration information for perl v5.8.0​:

Configured by bhcompile at Sun Sep 1 23​:55​:07 EDT 2002.

Summary of my perl5 (revision 5.0 version 8 subversion 0) configuration​:
  Platform​:
  osname=linux, osvers=2.4.18-11smp, archname=i386-linux-thread-multi
  uname='linux daffy.perf.redhat.com 2.4.18-11smp #1 smp thu aug 15
06​:41​:59 edt 2002 i686 i686 i386 gnulinux '
  config_args='-des -Doptimize=-O2 -march=i386 -mcpu=i686
-Dmyhostname=localhost -Dperladmin=root@​localhost -Dcc=gcc -Dcf_by=Red
Hat, Inc. -Dinstallprefix=/usr -Dprefix=/usr -Darchname=i386-linux
-Dvendorprefix=/usr -Dsiteprefix=/usr -Duseshrplib -Dusethreads
-Duseithreads -Duselargefiles -Dd_dosuid -Dd_semctl_semun -Di_db
-Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio
-Dinstallusrbinperl -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less
-isr'
  hint=recommended, useposix=true, d_sigaction=define
  usethreads=define use5005threads=undef useithreads=define
usemultiplicity=define
  useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
  use64bitint=undef use64bitall=undef uselongdouble=undef
  usemymalloc=n, bincompat5005=undef
  Compiler​:
  cc='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
  optimize='-O2 -march=i386 -mcpu=i686',
  cppflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing
-I/usr/include/gdbm'
  ccversion='', gccversion='3.2 20020822 (Red Hat Linux Rawhide
3.2-5)', gccosandvers=''
  intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
  d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
  ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
lseeksize=8
  alignbytes=4, prototype=define
  Linker and Libraries​:
  ld='gcc', ldflags =' -L/usr/local/lib'
  libpth=/usr/local/lib /lib /usr/lib
  libs=-lnsl -lgdbm -ldb -ldl -lm -lpthread -lc -lcrypt -lutil
  perllibs=-lnsl -ldl -lm -lpthread -lc -lcrypt -lutil
  libc=/lib/libc-2.2.92.so, so=so, useshrplib=true, libperl=libperl.so
  gnulibc_version='2.2.92'
  Dynamic Linking​:
  dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic
-Wl,-rpath,/usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE'
  cccdlflags='-fpic', lddlflags='-shared -L/usr/local/lib'

Locally applied patches​:
 

---

@​INC for perl v5.8.0​:
  /usr/lib/perl5/5.8.0/i386-linux-thread-multi
  /usr/lib/perl5/5.8.0
  /usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
  /usr/lib/perl5/site_perl/5.8.0
  /usr/lib/perl5/site_perl
  /usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
  /usr/lib/perl5/vendor_perl/5.8.0
  /usr/lib/perl5/vendor_perl
  .

---

Environment for perl v5.8.0​:
  HOME=/home/emp/dmcallis
  LANG=C
  LANGUAGE (unset)

LD_LIBRARY_PATH=/usr/lib​:/usr/local/lib​:/project/cad/eda/lSPR50/tools/li
b
  LOGDIR (unset)

PATH=/usr/atria/bin​:.​:/home/emp/dmcallis/bin​:/bin​:/usr/X11R6/bin​:/usr/bi
n​:/usr/sbin​:/sbin​:/usr/local/bin​:/usr/local/gtk/bin​:/vobs/sc2/bin​:/vobs/
bex/vendorlib/bin​:/vobs/bex/bin​:/project/harmony/local/bin​:/project/cad/
eda/Trolltech/qt-x11-commercial-3.3.2/bin​:/vobs/m2sys/ver/util/bin​:/proj
ect/edaenv/bin
  PERL_BADLANG (unset)
  SHELL=/usr/local/bin/tcsh

Complete configuration data for perl v5.8.0​:

Author=''
CONFIG='true'
Date='$Date'
Header=''
Id='$Id'
Locker=''
Log='$Log'
Mcc='Mcc'
PATCHLEVEL='8'
PERL_API_REVISION='5'
PERL_API_SUBVERSION='0'
PERL_API_VERSION='8'
PERL_CONFIG_SH='true'
PERL_REVISION='5'
PERL_SUBVERSION='0'
PERL_VERSION='8'
RCSfile='$RCSfile'
Revision='$Revision'
SUBVERSION='0'
Source=''
State=''
_a='.a'
_exe=''
_o='.o'
afs='false'
afsroot='/afs'
alignbytes='4'
ansi2knr=''
aphostname=''
api_revision='5'
api_subversion='0'
api_version='8'
api_versionstring='5.8.0'
ar='ar'
archlib='/usr/lib/perl5/5.8.0/i386-linux-thread-multi'
archlibexp='/usr/lib/perl5/5.8.0/i386-linux-thread-multi'
archname='i386-linux-thread-multi'
archname64=''
archobjs=''
asctime_r_proto='REENTRANT_PROTO_B_SB'
awk='awk'
baserev='5.0'
bash=''
bin='/usr/bin'
binexp='/usr/bin'
bison='bison'
byacc='byacc'
byteorder='1234'
c=''
castflags='0'
cat='cat'
cc='gcc'
cccdlflags='-fpic'
ccdlflags='-rdynamic
-Wl,-rpath,/usr/lib/perl5/5.8.0/i386-linux-thread-multi/CORE'
ccflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm'
ccflags_uselargefiles='-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64'
ccname='gcc'
ccsymbols='__GNUC_MINOR__=2 __GNUC_PATCHLEVEL__=0 __GXX_ABI_VERSION=102
__NO_INLINE__=1 __STDC_HOSTED__=1 __gnu_linux__=1 __i386=1 __i386__=1
__linux=1 __linux__=1 __tune_i386__=1 __unix=1 __unix__=1 cpu=i386
machine=i386 system=posix'
ccversion=''
cf_by='bhcompile'
cf_email='bhcompile@​localhost.localdomain'
cf_time='Sun Sep 1 23​:55​:07 EDT 2002'
charsize='1'
chgrp=''
chmod='chmod'
chown=''
clocktype='clock_t'
comm='comm'
compress=''
config_arg0='Configure'
config_arg1='-des'
config_arg10='-Dvendorprefix=/usr'
config_arg11='-Dsiteprefix=/usr'
config_arg12='-Duseshrplib'
config_arg13='-Dusethreads'
config_arg14='-Duseithreads'
config_arg15='-Duselargefiles'
config_arg16='-Dd_dosuid'
config_arg17='-Dd_semctl_semun'
config_arg18='-Di_db'
config_arg19='-Ui_ndbm'
config_arg2='-Doptimize=-O2 -march=i386 -mcpu=i686'
config_arg20='-Di_gdbm'
config_arg21='-Di_shadow'
config_arg22='-Di_syslog'
config_arg23='-Dman3ext=3pm'
config_arg24='-Duseperlio'
config_arg25='-Dinstallusrbinperl'
config_arg26='-Ubincompat5005'
config_arg27='-Uversiononly'
config_arg28='-Dpager=/usr/bin/less -isr'
config_arg3='-Dmyhostname=localhost'
config_arg4='-Dperladmin=root@​localhost'
config_arg5='-Dcc=gcc'
config_arg6='-Dcf_by=Red Hat, Inc.'
config_arg7='-Dinstallprefix=/usr'
config_arg8='-Dprefix=/usr'
config_arg9='-Darchname=i386-linux'
config_argc='28'
config_args='-des -Doptimize=-O2 -march=i386 -mcpu=i686
-Dmyhostname=localhost -Dperladmin=root@​localhost -Dcc=gcc -Dcf_by=Red
Hat, Inc. -Dinstallprefix=/usr -Dprefix=/usr -Darchname=i386-linux
-Dvendorprefix=/usr -Dsiteprefix=/usr -Duseshrplib -Dusethreads
-Duseithreads -Duselargefiles -Dd_dosuid -Dd_semctl_semun -Di_db
-Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio
-Dinstallusrbinperl -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less
-isr'
contains='grep'
cp='cp'
cpio=''
cpp='cpp'
cpp_stuff='42'
cppccsymbols='__ELF__=1 __GNUC__=3 i386=1 linux=1 unix=1'
cppflags='-D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing
-I/usr/include/gdbm'
cpplast='-'
cppminus='-'
cpprun='gcc -E'
cppstdin='gcc -E'
cppsymbols='_FILE_OFFSET_BITS=64 __GLIBC__=2 __GLIBC_MINOR__=3
__GNUC_MINOR__=2 __GNU_LIBRARY__=6 _GNU_SOURCE=1 _LARGEFILE64_SOURCE=1
_LARGEFILE_SOURCE=1 _POSIX_C_SOURCE=199506 _POSIX_SOURCE=1 _REENTRANT=1
__STDC__=1 __USE_BSD=1 __USE_FILE_OFFSET64=1 __USE_GNU=1
__USE_LARGEFILE=1 __USE_LARGEFILE64=1 __USE_MISC=1 __USE_POSIX=1
__USE_POSIX199309=1 __USE_POSIX199506=1 __USE_POSIX2=1 __USE_REENTRANT=1
__USE_SVID=1 __USE_UNIX98=1 __USE_XOPEN=1 __USE_XOPEN_EXTENDED=1
_XOPEN_SOURCE=600 _XOPEN_SOURCE_EXTENDED=1 __i386=1 __i386__=1 __linux=1
__linux__=1 __unix=1 __unix__=1'
crypt_r_proto='REENTRANT_PROTO_B_CCS'
cryptlib=''
csh='csh'
ctermid_r_proto='0'
ctime_r_proto='REENTRANT_PROTO_B_SB'
d_Gconvert='gcvt((x),(n),(b))'
d_PRIEUldbl='define'
d_PRIFUldbl='define'
d_PRIGUldbl='define'
d_PRIXU64='define'
d_PRId64='define'
d_PRIeldbl='define'
d_PRIfldbl='define'
d_PRIgldbl='define'
d_PRIi64='define'
d_PRIo64='define'
d_PRIu64='define'
d_PRIx64='define'
d_SCNfldbl='define'
d__fwalk=''
d_access='define'
d_accessx=''
d_alarm='define'
d_archlib='define'
d_asctime_r='define'
d_atolf=''
d_atoll='define'
d_attribut='define'
d_bcmp='define'
d_bcopy='define'
d_bsd=''
d_bsdgetpgrp=''
d_bsdsetpgrp=''
d_bzero='define'
d_casti32=''
d_castneg='define'
d_charvspr=''
d_chown='define'
d_chroot='define'
d_chsize=''
d_class=''
d_closedir='define'
d_cmsghdr_s='define'
d_const='define'
d_crypt='define'
d_crypt_r='define'
d_csh='define'
d_ctermid_r=''
d_ctime_r='define'
d_cuserid='define'
d_dbl_dig='define'
d_dbminitproto=''
d_difftime='define'
d_dirfd='define'
d_dirnamlen=''
d_dlerror='define'
d_dlopen='define'
d_dlsymun=''
d_dosuid='define'
d_drand48_r='define'
d_drand48proto='define'
d_dup2='define'
d_eaccess=''
d_endgrent='define'
d_endgrent_r=''
d_endhent='define'
d_endhostent_r=''
d_endnent='define'
d_endnetent_r=''
d_endpent='define'
d_endprotoent_r=''
d_endpwent='define'
d_endpwent_r=''
d_endsent='define'
d_endservent_r=''
d_eofnblk='define'
d_eunice=''
d_fchdir='define'
d_fchmod='define'
d_fchown='define'
d_fcntl='define'
d_fcntl_can_lock='define'
d_fd_macros='define'
d_fd_set='define'
d_fds_bits='define'
d_fgetpos='define'
d_finite='define'
d_finitel='define'
d_flexfnam='define'
d_flock='define'
d_flockproto='define'
d_fork='define'
d_fp_class=''
d_fpathconf='define'
d_fpclass=''
d_fpclassify=''
d_fpclassl=''
d_fpos64_t=''
d_frexpl='define'
d_fs_data_s=''
d_fseeko='define'
d_fsetpos='define'
d_fstatfs='define'
d_fstatvfs='define'
d_fsync='define'
d_ftello='define'
d_ftime=''
d_getcwd='define'
d_getespwnam=''
d_getfsstat=''
d_getgrent='define'
d_getgrent_r='define'
d_getgrgid_r='define'
d_getgrnam_r='define'
d_getgrps='define'
d_gethbyaddr='define'
d_gethbyname='define'
d_gethent='define'
d_gethname='define'
d_gethostbyaddr_r=''
d_gethostbyname_r='define'
d_gethostent_r='define'
d_gethostprotos='define'
d_getitimer='define'
d_getlogin='define'
d_getlogin_r='define'
d_getmnt=''
d_getmntent='define'
d_getnbyaddr='define'
d_getnbyname='define'
d_getnent='define'
d_getnetbyaddr_r=''
d_getnetbyname_r='define'
d_getnetent_r='define'
d_getnetprotos='define'
d_getpagsz='define'
d_getpbyname='define'
d_getpbynumber='define'
d_getpent='define'
d_getpgid='define'
d_getpgrp='define'
d_getpgrp2=''
d_getppid='define'
d_getprior='define'
d_getprotobyname_r='define'
d_getprotobynumber_r='define'
d_getprotoent_r='define'
d_getprotoprotos='define'
d_getprpwnam=''
d_getpwent='define'
d_getpwent_r='define'
d_getpwnam_r='define'
d_getpwuid_r='define'
d_getsbyname='define'
d_getsbyport='define'
d_getsent='define'
d_getservbyname_r='define'
d_getservbyport_r='define'
d_getservent_r='define'
d_getservprotos='define'
d_getspnam='define'
d_getspnam_r='define'
d_gettimeod='define'
d_gmtime_r='define'
d_gnulibc='define'
d_grpasswd='define'
d_hasmntopt='define'
d_htonl='define'
d_index=''
d_inetaton='define'
d_int64_t='define'
d_isascii='define'
d_isfinite=''
d_isinf='define'
d_isnan='define'
d_isnanl='define'
d_killpg='define'
d_lchown='define'
d_ldbl_dig='define'
d_link='define'
d_localtime_r='define'
d_locconv='define'
d_lockf='define'
d_longdbl='define'
d_longlong='define'
d_lseekproto='define'
d_lstat='define'
d_madvise='define'
d_mblen='define'
d_mbstowcs='define'
d_mbtowc='define'
d_memchr='define'
d_memcmp='define'
d_memcpy='define'
d_memmove='define'
d_memset='define'
d_mkdir='define'
d_mkdtemp='define'
d_mkfifo='define'
d_mkstemp='define'
d_mkstemps=''
d_mktime='define'
d_mmap='define'
d_modfl='define'
d_modfl_pow32_bug=''
d_mprotect='define'
d_msg='define'
d_msg_ctrunc='define'
d_msg_dontroute='define'
d_msg_oob='define'
d_msg_peek='define'
d_msg_proxy='define'
d_msgctl='define'
d_msgget='define'
d_msghdr_s='define'
d_msgrcv='define'
d_msgsnd='define'
d_msync='define'
d_munmap='define'
d_mymalloc=''
d_nice='define'
d_nl_langinfo='define'
d_nv_preserves_uv='define'
d_off64_t='define'
d_old_pthread_create_joinable=''
d_oldpthreads=''
d_oldsock=''
d_open3='define'
d_pathconf='define'
d_pause='define'
d_perl_otherlibdirs=''
d_phostname=''
d_pipe='define'
d_poll='define'
d_portable='define'
d_procselfexe='define'
d_pthread_atfork='define'
d_pthread_yield='define'
d_pwage=''
d_pwchange=''
d_pwclass=''
d_pwcomment=''
d_pwexpire=''
d_pwgecos='define'
d_pwpasswd='define'
d_pwquota=''
d_qgcvt='define'
d_quad='define'
d_random_r=''
d_readdir='define'
d_readdir64_r='define'
d_readdir_r='define'
d_readlink='define'
d_readv='define'
d_recvmsg='define'
d_rename='define'
d_rewinddir='define'
d_rmdir='define'
d_safebcpy=''
d_safemcpy=''
d_sanemcmp='define'
d_sbrkproto='define'
d_sched_yield='define'
d_scm_rights='define'
d_seekdir='define'
d_select='define'
d_sem='define'
d_semctl='define'
d_semctl_semid_ds='define'
d_semctl_semun='define'
d_semget='define'
d_semop='define'
d_sendmsg='define'
d_setegid='define'
d_seteuid='define'
d_setgrent='define'
d_setgrent_r=''
d_setgrps='define'
d_sethent='define'
d_sethostent_r=''
d_setitimer='define'
d_setlinebuf='define'
d_setlocale='define'
d_setlocale_r=''
d_setnent='define'
d_setnetent_r=''
d_setpent='define'
d_setpgid='define'
d_setpgrp='define'
d_setpgrp2=''
d_setprior='define'
d_setproctitle=''
d_setprotoent_r=''
d_setpwent='define'
d_setpwent_r=''
d_setregid='define'
d_setresgid='define'
d_setresuid='define'
d_setreuid='define'
d_setrgid=''
d_setruid=''
d_setsent='define'
d_setservent_r=''
d_setsid='define'
d_setvbuf='define'
d_sfio=''
d_shm='define'
d_shmat='define'
d_shmatprototype='define'
d_shmctl='define'
d_shmdt='define'
d_shmget='define'
d_sigaction='define'
d_sigprocmask='define'
d_sigsetjmp='define'
d_sockatmark='define'
d_sockatmarkproto='define'
d_socket='define'
d_socklen_t='define'
d_sockpair='define'
d_socks5_init=''
d_sqrtl='define'
d_srand48_r='define'
d_srandom_r='define'
d_sresgproto=''
d_sresuproto=''
d_statblks='define'
d_statfs_f_flags=''
d_statfs_s='define'
d_statvfs='define'
d_stdio_cnt_lval=''
d_stdio_ptr_lval=''
d_stdio_ptr_lval_nochange_cnt=''
d_stdio_ptr_lval_sets_cnt=''
d_stdio_stream_array=''
d_stdiobase=''
d_stdstdio=''
d_strchr='define'
d_strcoll='define'
d_strctcpy='define'
d_strerrm='strerror(e)'
d_strerror='define'
d_strerror_r='define'
d_strftime='define'
d_strtod='define'
d_strtol='define'
d_strtold='define'
d_strtoll='define'
d_strtoq='define'
d_strtoul='define'
d_strtoull='define'
d_strtouq='define'
d_strxfrm='define'
d_suidsafe=''
d_symlink='define'
d_syscall='define'
d_syscallproto='define'
d_sysconf='define'
d_sysernlst=''
d_syserrlst='define'
d_system='define'
d_tcgetpgrp='define'
d_tcsetpgrp='define'
d_telldir='define'
d_telldirproto='define'
d_time='define'
d_times='define'
d_tm_tm_gmtoff='define'
d_tm_tm_zone='define'
d_tmpnam_r='define'
d_truncate='define'
d_ttyname_r='define'
d_tzname='define'
d_u32align='define'
d_ualarm='define'
d_umask='define'
d_uname='define'
d_union_semun=''
d_unordered=''
d_usleep='define'
d_usleepproto='define'
d_ustat='define'
d_vendorarch='define'
d_vendorbin='define'
d_vendorlib='define'
d_vfork=''
d_void_closedir=''
d_voidsig='define'
d_voidtty=''
d_volatile='define'
d_vprintf='define'
d_wait4='define'
d_waitpid='define'
d_wcstombs='define'
d_wctomb='define'
d_writev='define'
d_xenix=''
date='date'
db_hashtype='u_int32_t'
db_prefixtype='size_t'
db_version_major='4'
db_version_minor='0'
db_version_patch='14'
defvoidused='15'
direntrytype='struct dirent'
dlext='so'
dlsrc='dl_dlopen.xs'
doublesize='8'
drand01='drand48()'
drand48_r_proto='REENTRANT_PROTO_I_ST'
dynamic_ext='B ByteLoader Cwd DB_File Data/Dumper Devel/DProf
Devel/PPPort Devel/Peek Digest/MD5 Encode Fcntl File/Glob
Filter/Util/Call GDBM_File I18N/Langinfo IO IPC/SysV List/Util
MIME/Base64 Opcode POSIX PerlIO/encoding PerlIO/scalar PerlIO/via
SDBM_File Socket Storable Sys/Hostname Sys/Syslog Time/HiRes
Unicode/Normalize XS/APItest XS/Typemap attrs re threads threads/shared'
eagain='EAGAIN'
ebcdic=''
echo='echo'
egrep='egrep'
emacs=''
endgrent_r_proto='0'
endhostent_r_proto='0'
endnetent_r_proto='0'
endprotoent_r_proto='0'
endpwent_r_proto='0'
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eunicefix='​:'
exe_ext=''
expr='expr'
extensions='B ByteLoader Cwd DB_File Data/Dumper Devel/DProf
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MIME/Base64 Opcode POSIX PerlIO/encoding PerlIO/scalar PerlIO/via
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Unicode/Normalize XS/APItest XS/Typemap attrs re threads threads/shared
Errno'
extras=''
fflushNULL='define'
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find=''
firstmakefile='makefile'
flex=''
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fpostype='fpos_t'
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from='​:'
full_ar='/usr/bin/ar'
full_csh='/bin/csh'
full_sed='/bin/sed'
gccosandvers=''
gccversion='3.2 20020822 (Red Hat Linux Rawhide 3.2-5)'
getgrent_r_proto='REENTRANT_PROTO_I_SBWR'
getgrgid_r_proto='REENTRANT_PROTO_I_TSBWR'
getgrnam_r_proto='REENTRANT_PROTO_I_CSBWR'
gethostbyaddr_r_proto='0'
gethostbyname_r_proto='REENTRANT_PROTO_I_CSBWRE'
gethostent_r_proto='REENTRANT_PROTO_I_SBWRE'
getlogin_r_proto='REENTRANT_PROTO_I_BW'
getnetbyaddr_r_proto='0'
getnetbyname_r_proto='REENTRANT_PROTO_I_CSBWRE'
getnetent_r_proto='REENTRANT_PROTO_I_SBWRE'
getprotobyname_r_proto='REENTRANT_PROTO_I_CSBWR'
getprotobynumber_r_proto='REENTRANT_PROTO_I_ISBWR'
getprotoent_r_proto='REENTRANT_PROTO_I_SBWR'
getpwent_r_proto='REENTRANT_PROTO_I_SBWR'
getpwnam_r_proto='REENTRANT_PROTO_I_CSBWR'
getpwuid_r_proto='REENTRANT_PROTO_I_TSBWR'
getservbyname_r_proto='REENTRANT_PROTO_I_CCSBWR'
getservbyport_r_proto='REENTRANT_PROTO_I_ICSBWR'
getservent_r_proto='REENTRANT_PROTO_I_SBWR'
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i_stdarg='define'
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i_stdlib='define'
i_string='define'
i_sunmath=''
i_sysaccess=''
i_sysdir='define'
i_sysfile='define'
i_sysfilio=''
i_sysin=''
i_sysioctl='define'
i_syslog='define'
i_sysmman='define'
i_sysmode=''
i_sysmount='define'
i_sysndir=''
i_sysparam='define'
i_sysresrc='define'
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i_sysselct='define'
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i_sysstat='define'
i_sysstatfs='define'
i_sysstatvfs='define'
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i_systimes='define'
i_systypes='define'
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i_sysun='define'
i_sysutsname='define'
i_sysvfs='define'
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i_varargs=''
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i_vfork=''
ignore_versioned_solibs='y'
inc_version_list='5.6.1'
inc_version_list_init='"5.6.1",0'
incpath=''
inews=''
installarchlib='/usr/lib/perl5/5.8.0/i386-linux-thread-multi'
installbin='/usr/bin'
installman1dir='/usr/share/man/man1'
installman3dir='/usr/share/man/man3'
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installprivlib='/usr/lib/perl5/5.8.0'
installscript='/usr/bin'
installsitearch='/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi'
installsitebin='/usr/bin'
installsitelib='/usr/lib/perl5/site_perl/5.8.0'
installstyle='lib/perl5'
installusrbinperl='define'
installvendorarch='/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-mu
lti'
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installvendorlib='/usr/lib/perl5/vendor_perl/5.8.0'
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known_extensions='B ByteLoader Cwd DB_File Data/Dumper Devel/DProf
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ksh=''
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libswanted='sfio socket bind inet nsl nm ndbm gdbm dbm db malloc dl dld
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longdblsize='12'
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lp=''
lpr=''
ls='ls'
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mail=''
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make_set_make='#'
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mips_type=''
mkdir='mkdir'
mmaptype='void *'
modetype='mode_t'
more='more'
multiarch=''
mv=''
myarchname='i686-linux'
mydomain='.localdomain'
myhostname='localhost'
myuname='linux daffy.perf.redhat.com 2.4.18-11smp #1 smp thu aug 15
06​:41​:59 edt 2002 i686 i686 i386 gnulinux '
n='-n'
need_va_copy=''
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netdb_host_type='const void *'
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netdb_net_type='in_addr_t'
nm='nm'
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nm_so_opt='--dynamic'
nonxs_ext='Errno'
nroff='nroff'
nvEUformat='"E"'
nvFUformat='"F"'
nvGUformat='"G"'
nv_preserves_uv_bits='32'
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nvfformat='"f"'
nvgformat='"g"'
nvsize='8'
nvtype='double'
o_nonblock='O_NONBLOCK'
obj_ext='.o'
old_pthread_create_joinable=''
optimize='-O2 -march=i386 -mcpu=i686'
orderlib='false'
osname='linux'
osvers='2.4.18-11smp'
otherlibdirs=' '
package='perl5'
pager='/usr/bin/less -isr'
passcat='cat /etc/passwd'
patchlevel='8'
path_sep='​:'
perl=''
perl5='/usr/bin/perl'
perl_patchlevel=''
perladmin='root@​localhost'
perllibs='-lnsl -ldl -lm -lpthread -lc -lcrypt -lutil'
perlpath='/usr/bin/perl'
pg='pg'
phostname=''
pidtype='pid_t'
plibpth=''
pm_apiversion='5.005'
pmake=''
pr=''
prefix='/usr'
prefixexp='/usr'
privlib='/usr/lib/perl5/5.8.0'
privlibexp='/usr/lib/perl5/5.8.0'
procselfexe='"/proc/self/exe"'
prototype='define'
ptrsize='4'
quadkind='3'
quadtype='long long'
randbits='48'
randfunc='drand48'
random_r_proto='0'
randseedtype='long'
ranlib='​:'
rd_nodata='-1'
readdir64_r_proto='REENTRANT_PROTO_I_TSR'
readdir_r_proto='REENTRANT_PROTO_I_TSR'
revision='5'
rm='rm'
rmail=''
run=''
runnm='false'
sPRIEUldbl='"LE"'
sPRIFUldbl='"LF"'
sPRIGUldbl='"LG"'
sPRIXU64='"LX"'
sPRId64='"Ld"'
sPRIeldbl='"Le"'
sPRIfldbl='"Lf"'
sPRIgldbl='"Lg"'
sPRIi64='"Li"'
sPRIo64='"Lo"'
sPRIu64='"Lu"'
sPRIx64='"Lx"'
sSCNfldbl='"Lf"'
sched_yield='sched_yield()'
scriptdir='/usr/bin'
scriptdirexp='/usr/bin'
sed='sed'
seedfunc='srand48'
selectminbits='32'
selecttype='fd_set *'
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setgrent_r_proto='0'
sethostent_r_proto='0'
setlocale_r_proto='0'
setnetent_r_proto='0'
setprotoent_r_proto='0'
setpwent_r_proto='0'
setservent_r_proto='0'
sh='/bin/sh'
shar=''
sharpbang='#!'
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shsharp='true'
sig_count='64'
sig_name='ZERO HUP INT QUIT ILL TRAP ABRT BUS FPE KILL USR1 SEGV USR2
PIPE ALRM TERM STKFLT CHLD CONT STOP TSTP TTIN TTOU URG XCPU XFSZ VTALRM
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sig_name_init='"ZERO", "HUP", "INT", "QUIT", "ILL", "TRAP", "ABRT",
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"XFSZ", "VTALRM", "PROF", "WINCH", "IO", "PWR", "SYS", "NUM32", "NUM33",
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"NUM58", "NUM59", "NUM60", "NUM61", "NUM62", "RTMAX", "IOT", "CLD",
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sig_num='0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 6 17 29 31 '
sig_num_init='0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34,
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53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 6, 17, 29, 31, 0'
sig_size='68'
signal_t='void'
sitearch='/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi'
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sitebin='/usr/bin'
sitebinexp='/usr/bin'
sitelib='/usr/lib/perl5/site_perl/5.8.0'
sitelib_stem='/usr/lib/perl5/site_perl'
sitelibexp='/usr/lib/perl5/site_perl/5.8.0'
siteprefix='/usr'
siteprefixexp='/usr'
sizesize='4'
sizetype='size_t'
sleep=''
smail=''
so='so'
sockethdr=''
socketlib=''
socksizetype='socklen_t'
sort='sort'
spackage='Perl5'
spitshell='cat'
srand48_r_proto='REENTRANT_PROTO_I_LS'
srandom_r_proto='REENTRANT_PROTO_I_TS'
src='.'
ssizetype='ssize_t'
startperl='#!/usr/bin/perl'
startsh='#!/bin/sh'
static_ext=' '
stdchar='char'
stdio_base='((fp)->_IO_read_base)'
stdio_bufsiz='((fp)->_IO_read_end - (fp)->_IO_read_base)'
stdio_cnt='((fp)->_IO_read_end - (fp)->_IO_read_ptr)'
stdio_filbuf=''
stdio_ptr='((fp)->_IO_read_ptr)'
stdio_stream_array=''
strerror_r_proto='REENTRANT_PROTO_B_IBW'
strings='/usr/include/string.h'
submit=''
subversion='0'
sysman='/usr/share/man/man1'
tail=''
tar=''
targetarch=''
tbl=''
tee=''
test='test'
timeincl='/usr/include/sys/time.h /usr/include/time.h '
timetype='time_t'
tmpnam_r_proto='REENTRANT_PROTO_B_B'
to='​:'
touch='touch'
tr='tr'
trnl='\n'
troff=''
ttyname_r_proto='REENTRANT_PROTO_I_IBW'
u16size='2'
u16type='unsigned short'
u32size='4'
u32type='unsigned long'
u64size='8'
u64type='unsigned long long'
u8size='1'
u8type='unsigned char'
uidformat='"lu"'
uidsign='1'
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uidtype='uid_t'
uname='uname'
uniq='uniq'
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use5005threads=''
use64bitall=''
use64bitint=''
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usedl='define'
useithreads='define'
uselargefiles='define'
uselongdouble=''
usemorebits=''
usemultiplicity='define'
usemymalloc='n'
usenm='false'
useopcode='true'
useperlio='define'
useposix='true'
usereentrant=''
usesfio='false'
useshrplib='true'
usesocks=''
usethreads='define'
usevendorprefix='define'
usevfork='false'
usrinc='/usr/include'
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uvXUformat='"lX"'
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uvsize='4'
uvtype='unsigned long'
uvuformat='"lu"'
uvxformat='"lx"'
vendorarch='/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi'
vendorarchexp='/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi'
vendorbin='/usr/bin'
vendorbinexp='/usr/bin'
vendorlib='/usr/lib/perl5/vendor_perl/5.8.0'
vendorlib_stem='/usr/lib/perl5/vendor_perl'
vendorlibexp='/usr/lib/perl5/vendor_perl/5.8.0'
vendorprefix='/usr'
vendorprefixexp='/usr'
version='5.8.0'
version_patchlevel_string='version 8 subversion 0'
versiononly=''
vi=''
voidflags='15'
xlibpth='/usr/lib/386 /lib/386'
xs_apiversion='5.8.0'
yacc='/usr/bin/byacc'
yaccflags=''
zcat=''
zip='zip'

[p5pRT]

From @iabyn

On Mon, Dec 20, 2004 at 09​:38​:09PM -0000, dmcallis @​ es. com wrote​:

I was using the "Here" document syntax to document the usage of a
script. As I added functionality, I would add to the here-document. As
I added one trivial function, my script started having parsing errors a
few hundred lines away with

I'm afraid your description is a bit vague. Would it be possible
to provide a short but complete script that demonstrates the problem?
Include a description of what output you see and how it differs from what
you expect.

Thanks,

Dave.

--
The Enterprise's efficient long-range scanners detect a temporal vortex
distortion in good time, allowing it to be safely avoided via a minor
course correction.
  -- Things That Never Happen in "Star Trek" #21

[p5pRT]

The RT System itself - Status changed from 'new' to 'open'

[p5pRT]

From [email protected]

Hello Dave,

I agree and apologize for the vagueness of the message. I was in the
midst of solving a problem and rushed my bug description. I can provide
a more complete description of the problem, but I'm not sure if I can
provide a short script demonstrating the problem. I'll provide the
original script, and hopefully it will demonstrate the same behavior.

The script is used to invoke a hardware simulator by parsing a list of
inputs and then setting up the preprocessor (ncprep), compiler (ncvlog),
elaborator (ncelab), and simulator (ncsim). The nc* applications all
have several possible command line options, so as we find useful
switches and incorporate them into our methodology, they are added to
the script. It's hard to keep track of all of the options, so there is
a usage section. Please overlook the used only once variables and the
commented out code as this is an evolving script and it is not without a
few leftovers.

Now that you have the script, here is a more specific description of the
problem. The script was running fine, and then I added the -a option.
This required a few changes, as summarized below.

* Added line 125​:
  -a​: turn on assertions ...
* Added line 200​:
  $assertions = "";...
* Added lines 379 through 383​:
  } elsif ($this_key eq "a")...
* Modified line 735 by inserting " . $assertions" into the right-hand
side of the equation

When I ran the script (using the command line "goVerify.pl config_1_10
+NO_MBIST +NO_SERDES +quicksims", where config_1_10 is the name of the
test scenario), I got the following error message.

String found where operator expected at /vobs/bex/bin/goVerify line 524,
near ""+define+USER_NEGOT_TESTS=\\\ "" . $es_negot_tests_file . ""
  (Missing operator before " . $es_negot_tests_file . "?)
Backslash found where operator expected at /vobs/bex/bin/goVerify line
524, near "" . $es_negot_tests_file . "\"
  (Missing operator before \?)
syntax error at /vobs/bex/bin/goVerify line 524, near
""+define+USER_NEGOT_TESTS=\\\ "" . $es_negot_tests_file . ""
Execution of /vobs/bex/bin/goVerify aborted due to compilation errors.

I originally focused on line 125 - the line added to the usage
here-document. I removed it and got the same failure, but when I just
removed the portion after the word "pass", the script ran. I put back
the words and the script fails. When I get rid of everything on that
line after the word "assertions", the test ends up printing the usage
section and exiting.

I find this behavior interesting. Initially, I didn't have time to
debug the problem, so I found that I could modify the cumbersome lines
around line 524, changing them to a plain define but not giving them a
value. This caused the test to pass. But later, when I added another
option (not included), the strange failures showed up again.

Hopefully this will give you enough to go on. I tried to run perl -d,
but I don't seem to get my code - instead, I get​:

  Loading DB routines from perl5db.pl version 1.19
  Editor support available.

  Enter h or `h h' for help, or `man perldebug' for more help.

  Switch​::filter_blocks(/usr/lib/perl5/5.8.0/Switch.pm​:94)​:
  94​: component​: while (pos $source < length $source)
  95​: {
  DB<1>

I've been using perl for years, but don't claim to be an expert. I've
never used the debugger, but from looking at tutorials, I expected to be
able to run through my code using the debugger. Instead I seem to be
parsing my code, one character at a time.

Hope this is enough, but not too much.

Thanks again,
-Dave

 

-----Original Message-----
From​: Dave Mitchell via RT [mailto​:perlbug-followup@​perl.org]
Sent​: Tuesday, December 21, 2004 3​:59 PM
To​: Dave McAllister
Subject​: Re​: [perl #33128] Here-document length bug

On Mon, Dec 20, 2004 at 09​:38​:09PM -0000, dmcallis @​ es. com wrote​:

I was using the "Here" document syntax to document the usage of a
script. As I added functionality, I would add to the here-document.
As I added one trivial function, my script started having parsing
errors a few hundred lines away with

I'm afraid your description is a bit vague. Would it be possible to
provide a short but complete script that demonstrates the problem?
Include a description of what output you see and how it differs from
what you expect.

Thanks,

Dave.

--
The Enterprise's efficient long-range scanners detect a temporal vortex
distortion in good time, allowing it to be safely avoided via a minor
course correction.
  -- Things That Never Happen in "Star Trek" #21

[p5pRT]

From [email protected]

goVerify.pl

[p5pRT]

From [email protected]

Hello Dave,

I replied earlier with quite a bit of information, but I wanted to add
this piece. I have been spending more time trying to debug this, and I
think there is a good chance it has to do with the "use Switch;" on line
12.

-Dave

-----Original Message-----
From​: Dave Mitchell via RT [mailto​:perlbug-followup@​perl.org]
Sent​: Tuesday, December 21, 2004 3​:59 PM
To​: Dave McAllister
Subject​: Re​: [perl #33128] Here-document length bug

On Mon, Dec 20, 2004 at 09​:38​:09PM -0000, dmcallis @​ es. com wrote​:

I was using the "Here" document syntax to document the usage of a
script. As I added functionality, I would add to the here-document.
As I added one trivial function, my script started having parsing
errors a few hundred lines away with

I'm afraid your description is a bit vague. Would it be possible to
provide a short but complete script that demonstrates the problem?
Include a description of what output you see and how it differs from
what you expect.

Thanks,

Dave.

--
The Enterprise's efficient long-range scanners detect a temporal vortex
distortion in good time, allowing it to be safely avoided via a minor
course correction.
  -- Things That Never Happen in "Star Trek" #21

[p5pRT]

From @schwern

On Tue, Dec 21, 2004 at 10​:25​:00PM -0700, dmcallis@​es.com wrote​:

I replied earlier with quite a bit of information, but I wanted to add
this piece. I have been spending more time trying to debug this, and I
think there is a good chance it has to do with the "use Switch;" on line
12.

To amplify this, Switch.pm is a source filter. It reads in your source
code, alters it and recompiles. Since Perl parsing is not a perfect art
it sometimes gets things wrong.

--
Michael G Schwern schwern@​pobox.com http​://www.pobox.com/~schwern/
Great minds think.

[p5pRT]

From [email protected]

-----BEGIN PGP SIGNED MESSAGE-----

Moin,

<dmcallis@​es.com> wrote​:

Hello Dave,

I replied earlier with quite a bit of information, but I wanted to add
this piece. I have been spending more time trying to debug this, and I
think there is a good chance it has to do with the "use Switch;" on line
12.

I tried to run the script w/ v5.8.6 (ugh, that could have rooted my system :)
and it complains about ENV variables not set. However, it did compile fine.

As you are running Perl 5.8.0, a rather outdated version, could you please
download 5.8.6, and try it again with that version?

In addtion, Switch.pm seems not used in the script, so you might simple remove
it.

I vaguely remember some Switch.pm related fixed in the past. Here is a change
log​:

http​://public.activestate.com/cgi-bin/perlbrowse?file=lib%2FSwitch.pm&log=1

Best wishes,

Tels

- --
Signed on Wed Dec 22 17​:33​:03 2004 with key 0x93B84C15.
Visit my photo gallery at http​://bloodgate.com/photos/
PGP key on http​://bloodgate.com/tels.asc or per email.

"Now, _you_ behave!"

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[p5pRT]

From @cpansprout

Not being able to reproduce this in 5.8.1, I’m assuming that the upgrade
from Switch 2.09 to 2.10 fixed it.

[p5pRT]

@cpansprout - Status changed from 'open' to 'resolved'