Vim Documentation: os_vms

*os_vms.txt*   For Vim version 5.4.  Last change: 1999 Jul 25


		  VIM REFERENCE MANUAL



							*VMS*
This file contains the particularities for the VMS version of Vim.

1. VMS version of Vim 5.4	|VMS-5.4|
2. VMS version of Vim 5.3	|VMS-5.3|
3. Extra remarks		|VMS-SK|

==============================================================================

1. VMS version of Vim 5.4					*VMS-5.4*

by Charles E. Campbell, Jr.

You will need both the Unix and Extras distributions to build vim.exe for VMS.
Please read |VMS-5.3|; much of its directions on how to build vms.exe still
apply.

Vim v5.4 now uses a special directory structure to hold the document
and runtime files:

   vim (or wherever)
    |- tmp
    |- vim54
    |----- doc
    |----- syntax

Use
	assign/nolog dev:[leading-path-here.vim54] vimruntime
	assign/nolog dev:[leading-path-here.vim54.tmp] tmp

to get vim.exe to find its document, filetype, and syntax files, and to
specify a directory where temporary files will be located.  Copy the
"runtime" subdirectory of the vim distribution to vimruntime:.

This version has been modified so that it will internally convert any
unix-style paths and even mixed unix/VMS paths into VMS style paths.  Some
typical conversions resemble:

	/abc/def/ghi          -> abc:[def]ghi.
	/abc/def/ghi.j        -> abc:[def]ghi.j
	/abc/def/ghi/jkl/mno  -> abc:[def.ghi.jkl]mno.
	abc:[def.ghi]jkl/mno  -> abc:[def.ghi.jkl]mno.

In particular, $VIM_DOC is no longer used.

Notes:

  a) I used a home-grown make program to build vim.exe from a modified
     <Makefile.manx>; hence I have not tested mms/mmk.

  b) This version supports filters; ie. if you have a sort program
     that can handle input/output redirection like Unix (<infile >outfile),
     you could use

	map \s 0!'aqsort<CR>

     and expect it to work.

  c) For some reason binary tag searching would not work properly,
     hence the VMS version uses linear tag searching by default.

==============================================================================

2. VMS version of Vim 5.3					*VMS-5.3*

by Bruce Hunsaker

Here is some information about building VIM 5.3 for VMS.
My experience is on DEC Alpha's running VMS 7.1.

1) You will need VMS version of unzip to unpack the
   distribution.  Trying to copy an already unpacked source tree
   to VMS did not work well for me (via FTP).  Binaries for these
   2 utilities are readily available on the WWW.

2) You will need either the DECSET mms utility or the freely available
   clone of it called mmk.  (VMS has no make utility in the standard
   distribution.)  I found a binary of 'mmk' which worked well.

3) I suggest unpacking the distribution to the location that will be
   used at run-time.  This will avoid problems trying to decide
   what to move to the final 'install' directory, since there is no
   'install' target in the makefile.

3) Once unpacked, change to the vim/src directory and do:
		mmk/descrip=os_vms_x.mms
   This builds a version of VIM with Terminal and X-windows support.

   To build just a character mode VIM do:
		mmk/descrip=os_vms.mms
   (or use 'mms' instead of 'mmk' if you have it)

4) Copy the executable (vim.exe) to a common location. (I set up
   a [usr.bin] directory for this.

5) To run, I added the following lines in my LOGIN.COM:

		$ vi*m :== $lib_disk:[usr.bin]vim.exe
		$ define tmp tmp_disk:[tmp]
		$ define vim "/lib_disk/usr/lib/vim-5_1/"
		$ define vim_hlp lib_disk:[usr.lib.vim-5_1.doc]

	Your names for devices and directories will need to be changed
	to match your system.

	After the setup is complete I run VIM with either 'vi' or 'vi -g'.
	Note: 'vi -g' will not start in the background.  In order to do
	      that I have to resort to: 'pipe vi -g &' WARNING, this
		  breaks ':sh', but you can do ':!create/term/detach' to
		  spawn a sub-shell.

6) Create .vimrc and .gvimrc files in your home directory.  I suggest
   copying the supplied example files in the distribution, and using
   them as a starting point.

7) There are backspace/delete key inconsistencies with VMS.
	:fixdel dosen't do the trick. I had to add:

		" for terminal mode
		inoremap ^? ^H

		" for gui mode
		inoremap <Del> ^H
For compiling Vim on alpha running VMS, just invoke
	mms /descrip=os_vms.mms

I've worked (and compiled) only the console version, not the GUI. It's OK.
The arrow keys didn't work, I've mapped them:
	:map <^V + Left-arrow> <Left>
and so on.

==============================================================================

3. Extra remarks						*VMS-SK*

Some remarks and changes from Sandor Kopanyi:

In fileio.c there was a VMS specific section regarding creation of temporary
files ("mktemp not working..." etc., "use tempnam() instead...").  Well,
tempnam didn't work (for me, at least), mktemp seems to work, so I removed
that section.  It is still possible to use the "original" version, defining
VMS_TEMPNAM; then tempnam() will be used (if only VMS is defined, then
mktemp() will be compiled).

And a problem (nothing is perfect :-): I run ViM in an X-emulator; when I
paste a lot of long rows (more than ~7 rows), Vim becomes "confused", and only
some parts of the rows appears, but even that ones "mixed". There is no
problem with short rows (less then ~25 chars).

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