<h2>Editing File: /usr/share/vim/vim80/doc/os_390.txt</h2><form method='post'><textarea name='content' class='file-edit'>*os_390.txt*    For Vim version 8.0.  Last change: 2016 Feb 27


		  VIM REFERENCE MANUAL	  by Ralf Schandl

					*zOS* *z/OS* *OS390* *os390* *MVS*
This file contains the particulars for the z/OS UNIX version of Vim.

1. ASCII/EBCDIC dependent scripts	|zOS-has-ebcdic|
2. Putty and Colors                     |zOS-PuTTY|
3. Motif Problems			|zOS-Motif|
4. Bugs					|zOS-Bugs|
5. Limitations     			|zOS-limitations|
6. Open source on z/OS UNIX		|zOS-open-source|

Contributors: ~
The port to z/OS UNIX was done by Ralf Schandl for the Redbook mentioned
below.

Changes, bug-reports, or both by:

	David Moore
	Anthony Giorgio
	and others

==============================================================================
1. ASCII/EBCDIC dependent scripts	*OS390-has-ebcdic* *zOS-has-ebcdic*

For the internal script language the feature &quot;ebcdic&quot; was added.  With this
you can fix ASCII dependent scripts like this:
&gt;
    if has(&quot;ebcdic&quot;)
	let space = 64
    else
	let space = 32
    endif
&lt;

==============================================================================
2. PuTTY and Colors			*OS390-PuTTY* *zOS-PuTTY*

If you see problems with syntax highlighting or screen corruptions when you
connect to z/OS using Putty, try the following:

- Configure Putty as &quot;vt220&quot; terminal (Connection-&gt;Data)
- Add the following 3 lines to your vimrc:

&gt;
    set t_AB=[4%p1%dm
    set t_AF=[3%p1%dm
    set t_CO=8
&lt;

Note:  is one character use &lt;C-V&gt;&lt;Esc&gt; to enter it.

==============================================================================
3. Motif Problems			*OS390-Motif* *zOS-Motif*

Note: Seen with Vim 6.*, never tested since.

It seems that in porting the Motif library to z/OS, a translation from EBCDIC
to ASCII for the accelerator characters of the pull-down menus was forgotten.
Even after I tried to hand convert the menus, the accelerator keys continued
to only work for the opening of menus (like &lt;Alt-F&gt; to open the file menu).
They still do not work for the menu items themselves (like &lt;Alt-F&gt;O to open
the file browser).

There is no solution for this yet.

==============================================================================
4. Bugs					*OS390-bugs* *zOS-Bugs*

- Vim will consistently hang when a large amount of text is selected in
  visual block mode.  This may be due to a memory corruption issue.  Note that
  this occurs in both the terminal and gui versions.

==============================================================================
5. Limitations     			*OS390-limitations* *zOS-limitations*

- No binary search in tag files.
  The program /bin/sort sorts by ASCII value by default.  This program is
  normally used by ctags to sort the tags.  There might be a version of
  ctags out there, that does it right, but we can't be sure.  So this seems to
  be a permanent restriction.

- The cscope interface (|cscope|) doesn't work for the version of cscope
  that we use on our mainframe.  We have a copy of version 15.0b12, and it
  causes Vim to hang when using the &quot;cscope add&quot; command.  I'm guessing that
  the binary format of the cscope database isn't quite what Vim is expecting.
  I've tried to port the current version of cscope (15.3) to z/OS, without
  much success.  If anyone is interested in trying, drop me a line if you
  make any progress.

- No glib/gtk support.  I have not been able to successfully compile glib on
  z/OS UNIX.  This means you'll have to live without the pretty gtk toolbar.
 
Disabled at compile time:
    - Multibyte support         (|multibyte|)
    - Right-to-left mode        (|rileft|)
    - Farsi key map             (|Farsi|)
    - Arabic language support   (|Arabic|)
    - Spell checking            (|spell|)

Never tested:
    - Perl interface		(|perl|)
    - Hangul input		(|hangul|)
    - Encryption support	(|encryption|)
    - Langmap			(|'langmap'|)
    - Python support		(|Python|)
    - Right-to-left mode	(|'rightleft'|)
    - TCL interface		(|tcl|)
    ...

==============================================================================
6. Open source on z/OS UNIX		*OS390-open-source* *zOS-open-source*

If you are interested in other Open Source Software on z/OS UNIX, have a
look at the following Redbook:

    Mike MacIsaac et al
    &quot;Open Source Software for z/OS and OS/390 UNIX&quot;
    IBM Form Number: SG24-5944-01
    ISBN: 0738424633
    http://www-03.ibm.com/systems/resources/servers_eserver_zseries_zos_unix_redbook_sg245944.pdf

Also look at:
    http://www.redbooks.ibm.com
    http://www-03.ibm.com/systems/z/os/zos/features/unix/
    http://www-03.ibm.com/systems/z/os/zos/features/unix/library/IBM+Redbooks/index.html


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