bug#5708: 23.1; "mismatched parens" bug with simple demo file

[Edward J. Huff]

To: bug-gnu-emacs@gnu.org

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list, and 
to the gnu.emacs.bug news group.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

The included 25600 byte 879 line file (gzip uuencode) which
contains only open and close parens, spaces, and
newlines, (except for "Top(" at top of file) gives mode
line message "mismatched parenthesis" on the fourth
paren added at start of empty line 879, but
gives message "Matches Top(" when added at end
of line 878.  Adding one space and four parens
at end of line 878 also gives "mismatched parenthesis".


$ wc testing
  879  1776 25600 testing
$ sha1sum testing
f6693c2ca58ada64f14e517b03c2e6039ba40885  testing
$ gzip testing
$ sha1sum testing.gz 
faff72a6a4836196374c020f761688d027e03557  testing.gz
$ wc testing.gz
  10   47 2039 testing.gz
$ gmimeuuencode -m testing.gz testing.gz
begin-base64 664 testing.gz
H4sICBHQmUsAA3Rlc3RpbmcA7V1JluQoDN37FCzFffoe3fdfdabNoOFLgIeojMrgvcqwQTNCSNgR
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tIhkt+kluyiGih8k3TvxyoaO+yWqDZVIADRP3P+bxllvApxepMdI/jKwqR532WH7t/m2QdJM8zH+
5grzoVWtMwBr8XbsNw2ix7gOvdtvxXaGB4qDgj2kwQxo98R9g5tYEdc0a3Wbx2NFs1w/fLWYblY7
uNzZ8M2hrLEwuaL2OL8XQpZOlGd6N5WKSi54dBSrX1EnsR03crQnI+WTZyWsLMdzdb5O1DKka0U2
aLlJzRJxdnVYziRhFLkcnmzG84Z1aDGcaCmyTTnTwP2Bo700dE1LtZdZXplPzMN5tqUzr1Z0WUKU
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QtM48LI5Hgnzg/R+bn0SbW01dCqSyIApbmse/Lt4ARdG95+VCuSE1z993bZm7TZ1YPAHg4Ej3bVK
5Nwi+st4X8O+KLk72789FJnjMUmGZ/0uccYmfGbzybNn2tvl2WvQv2iBWcjPhv+gLJ8N/2fxvob9
qg3/GvavjGZhzlA65HEhA4CLncJbKxs7htTnvKk+vGAOxDURh479+JST/4YlMdyeCZAHBh6RpPp2
0GENjjsiUy7nMfRsZnb1IkJtmvsDlB3tqbFghiY1fgNEvlYoSQrHlQ2anEeE/zUIWffFQnWxmOwj
KCPijquIJCHkvQMjOjahqbFysaB4CKgeP0GYFSBtamVdENF6t45DNcjosHoHETMf1oXEhnKdRqXz
AJEaR3SPT+S6IOL10MfJLWrIqRliBcrs9Dr+dCLljQHUO4wzFXhLcgZ6W0yUXPDlhOtERruOMsDI
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0hNeR9QCp1UjytofzBAzpf5ir8w8QeUYj/0YbA7HRkTxiq5gGo9B27ePjs+jc/+rJ0Wz71fZgBSd
oCQG1EUPA1+dY4WanSi/3L8laMkfwd/hPUXYR8ouylmi2dMCgK+4gNG/OqKVr43MSIJkmBSMCrQU
sI2xQNZCnFxlxEEFcANdgvX9x/Med3L9gTNGXVruA0/3530Jbnb4TnXVG0fqC9ErWWNP5hoJcPQC
d4Y4GfXDH5nUxgxAATBZJMVimpz7t2gZZt8oM4PoO11B7ZdHbpzrIZBi8vgpwh21vG6qDlrS4eka
8LrGNx32PFEewwJ3pqY8jYhRVtokynAKBNgz7rYCfJ+IO8bVowUj/Pgs5MT0P7oQl33r/HHPdWuv
iPvEVNxkW3S8tJgqLIl1JhicgpliZL9Sjt4BKZfy/Mr97qcB1AkeqU+Q1iiMDeJVXu1G/KRNhzLf
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1Y07+dRMtUWsAbjQLTqLC3msgccIq1Z5OlVftfdDsNOvI4s2ejcfsRHFomDH3uBRsth7H1u3GBug
ktPj1uxalhzd9Ro51w/3MYfeszgbeFwyNRtiAiwRsVcDkgSvj1BPx2maaur1laARuKqEUyobc7Wa
PXXIIGEAjLU57U8q6p8rdU7cFUTj2nc7/ODkj4mB2e4gIIWIz/yilkXGNa97Tb6gkmVQqkbi/NYE
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mLOf40piUT3j47LEzp3qG0u3hEJwcV/pzkaQFfd1wevisH6GmR6boMN6U59eA+nrqpIWcg6txLnN
QsbmvHc2ornwpwJKsyIQeXeVqhguUXhA53YqKeknHH1vCqjYHMUN0RPrMt7danDW8qgOm52ekWZW
FODSlsSDS26ATBGQ80CtXjJ/GFgLCgh+LNtNMUIRzI/Rqw67H9ZHxeXG5weCUMnAzYYHvhshWJdv
QLbiX0+v8y6814/h7Pt77X9O6E/84FXmXh8eqfIzSVV8rcR+VLeBqOW8dDBoQU6dZWerjVgBk+1+
iqvMqWz7mtqbntLQz9QvdADVebaFbDSTaNnm1KtJpdYHqe1/IAAXxgBkAAA=
====
$ gmimeuuencode -m testing.gz testing.gz | sha1sum
515be16839aa403b162f05a013dbab9b65c6effa  -
$ 

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
/usr/share/emacs/23.1/etc/DEBUG for instructions.


In GNU Emacs 23.1.1 (i386-redhat-linux-gnu, GTK+ Version 2.16.6)
 of 2009-12-03 on x86-3.fedora.phx.redhat.com
Windowing system distributor `The X.Org Foundation', version 11.0.10503000
configured using `configure  '--build=i386-redhat-linux-gnu' 
'--host=i386-redhat-linux-gnu' '--target=i586-redhat-linux-gnu' 
'--program-prefix=' '--prefix=/usr' '--exec-prefix=/usr' '--bindir=/usr/bin' 
'--sbindir=/usr/sbin' '--sysconfdir=/etc' '--datadir=/usr/share' 
'--includedir=/usr/include' '--libdir=/usr/lib' '--libexecdir=/usr/libexec' 
'--localstatedir=/var' '--sharedstatedir=/var/lib' '--mandir=/usr/share/man' 
'--infodir=/usr/share/info' '--with-dbus' '--with-gif' '--with-jpeg' 
'--with-png' '--with-rsvg' '--with-tiff' '--with-xft' '--with-xpm' 
'--with-x-toolkit=gtk' 'build_alias=i386-redhat-linux-gnu' 
'host_alias=i386-redhat-linux-gnu' 'target_alias=i586-redhat-linux-gnu' 
'CFLAGS=-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 
-fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i586 
-mtune=generic -fasynchronous-unwind-tables''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.utf8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  cua-mode: t
  shell-dirtrack-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  global-auto-composition-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t


-- 
Edward J. Huff <ed@huff20may77.us>

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