bug#1469: marked as done (term.el regression when dealing with long lines under bash)

bug#1469: marked as done (term.el regression when dealing with long lines under bash)

[Emacs bug Tracking System]

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Your message dated Sat, 27 Dec 2008 09:24:40 -0800 (PST)
with message-id <200812271724.mBRHOeT3019216@mothra.ics.uci.edu>
and subject line Re: bug#1469: patch for term.el regression when dealing with long lines under bash
has caused the Emacs bug report #1469,
regarding term.el regression when dealing with long lines under bash
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
bug report if necessary, and/or fix the problem forthwith.

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-- 
1469: http://emacsbugs.donarmstrong.com/cgi-bin/bugreport.cgi?bug=1469
Emacs Bug Tracking System
Contact owner@emacsbugs.donarmstrong.com with problems

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From: Cyril Bouthors <cyril@bouthors.org>
To: emacs-pretest-bug@gnu.org
Cc: rfrancoise@debian.org, Dimitri Fontaine <dfontaine@hi-media.com>
Subject: term.el regression when dealing with long lines under bash
Date: Tue, 02 Dec 2008 14:35:17 +0100
Message-ID: <49353995.7070605@bouthors.org>

term-mode is no longer able to handle long lines correctly with bash
under emacs-snapshot as it used to work under emacs22.

When a line wider than $COLUMNS+2 is displayed on the terminal, the
cursor is locked on the current line and does not move anymore until
/usr/bin/reset is ran.

I've been able to reproduce this bug when running bash, psql or csh
but not with zsh nor ksh.

I haven't been able to reproduce it under emacs22 at all.

Here's a short procedure to reproduce the bug:
 - Start Emacs: emacs-snapshot -Q
 - Start bash under term-mode: `M-: (term "/bin/bash") RET'
 - Display a long line under bash:
          width=$(($COLUMNS+2))
       for a in $(seq $width); do echo -n X; done; echo
 - Try to type any command on the terminal and you'll see the strange
   cursor behaviour

Long lines typically happen on a daily basis when your are reading
logfiles, running SQL queries, etc.

I hope I provided you with enough information.

In GNU Emacs 23.0.60.1 (x86_64-pc-linux-gnu, GTK+ Version 2.12.11)
 of 2008-11-29 on elegiac, modified by Debian
 (emacs-snapshot package, version 1:20081129-1)
Windowing system distributor `The X.Org Foundation', version 11.0.10502000
configured using `configure  '--build' 'x86_64-linux-gnu' '--host'
'x86_64-linux-gnu' '--prefix=/usr' '--sharedstatedir=/var/lib'
'--libexecdir=/usr/lib' '--localstatedir=/var'
'--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs-snapshot:/etc/emacs:/usr/local/share/emacs/23.0.60/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/23.0.60/site-lisp:/usr/share/emacs/site-lisp'
'--with-x=yes' '--with-x-toolkit=gtk' 'build_alias=x86_64-linux-gnu'
'host_alias=x86_64-linux-gnu' 'CFLAGS=-DDEBIAN
-DSITELOAD_PURESIZE_EXTRA=5000 -g -O2' 'LDFLAGS=-g -Wl,--as-needed'
'CPPFLAGS=''

Important settings:
  value of $LC_ALL: en_US.UTF-8
  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.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default-enable-multibyte-characters: t

Major mode: Term

Minor modes in effect:
  tooltip-mode: t
  tool-bar-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

Recent input:
<return> <return> <up> <return> <return> <return> <return>
<return> <S-return> <return> C-d M-x <up> t e r m <return>
<up> <M-backspace> b a s h <M-backspace> t c s <M-backspace>
c s h <return> <return> <return> <return> <return>
/ b i <backspace> <backspace> <backspace> . / b u <tab>
<tab> <backspace> <backspace> g / l o n g - l i n e
s . s h <return> <return> <return> <return> <return>
C-d M-x <up> <return> <up> <down> <up> C-g C-d M-x
b u <backspace> <backspace> r e p o r t - e m a c s
<tab> <return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Quit
#<buffer *terminal*>

-- 	
Cyril Bouthors




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From: Dan Nicolaescu <dann@ics.uci.edu>
To: Nicholas Maniscalco <nicholas@maniscalco.com>
Cc: 1469-done@emacsbugs.donarmstrong.com
Subject: Re: bug#1469: patch for term.el regression when dealing with long lines under bash
Date: Sat, 27 Dec 2008 09:24:40 -0800 (PST)
Message-ID: <200812271724.mBRHOeT3019216@mothra.ics.uci.edu>

Nicholas Maniscalco <nicholas@maniscalco.com> writes:

  > (I sent this to the wrong list earlier.  Resending to, hopefully, the
  > right place this time.)
  > 
  > Here's a patch for bug#1469 (term.el regression when dealing with long
  > lines under bash).
  > 
  > * term.el (term-emulate-terminal): Decode substring just prior to
  > inserting it.  (Bug#1469)
  > 
  > bug#1469 was introduced while fixing bug#1006.  I verified this patch
  > against the repro steps in bug#1006 to make sure I haven't made a
  > regression.
  > 
  > Can someone please review?  I'd appreciate any feedback.

Thanks, I checked this in.