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java line termination


From: Tom Tromey
Subject: java line termination
Date: 28 Jan 2003 11:30:47 -0700

This bug report will be sent to the Free Software Foundation,
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In GNU Emacs 21.2.1 (i386-redhat-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2002-04-08 on porky.devel.redhat.com
configured using `configure  i386-redhat-linux --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=/usr/com --mandir=/usr/share/man 
--infodir=/usr/share/info --with-gcc --with-pop --with-sound'
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.iso885915
  locale-coding-system: iso-latin-9
  default-enable-multibyte-characters: nil

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


Java has its own rules for what constitutes a line terminator.

A bare \r is one, as is a bare \n; but the \r\n sequence is also
considered a single terminator.

I've run across Java source code which uses a mix of different line
terminators in a single file.  While ugly, there's not much I can do
about it.

If I compile code like this with gcj, and then use gdb to debug it, I
find that the debug arrow will be misplaced, because Emacs and gcj
disagree about the current line number.  Similarly, M-x next-error
will sometimes jump to the wrong line, as gcj reports line numbers
according to Java rules, but Emacs interprets them according to its
own rules.

I think in java-mode Emacs ought to respect Java's notion of line
termination.



Recent input:
l i k e SPC t h e r e ' s SPC m o r e SPC f o r SPC 
u s SPC t o SPC d o SPC h e r e SPC : - ( C-u C-b C-k 
l <backspace> , SPC b l e a h . C-p C-k C-e C-f C-f 
C-n C-f C-n C-f C-v C-c C-c M-v z C-c b C-v C-s j a 
v a C-w C-w C-w C-w C-s C-l C-s C-s C-s C-s C-s C-s 
C-s C-a M-x r e p o r t - e m <tab> <return>

Recent messages:
Saving file /home/tromey/.newsrc.eld...
Wrote /home/tromey/.newsrc.eld
Saving /home/tromey/.newsrc.eld...done
Mark set
set-mark-command: No mark set in this buffer [2 times]
Mark set [4 times]
Auto-saving...done
Sending...done

Mark saved where search started [2 times]

Tom




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