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updated for version 7.0006

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Bram Moolenaar
2004-07-05 15:58:32 +00:00
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*if_mzsch.txt* For Vim version 7.0aa. Last change: 2004 Jul 05
VIM REFERENCE MANUAL by Sergey Khorev
The MzScheme Interface to Vim *mzscheme* *MzScheme*
1. Commands |mzscheme-commands|
2. Examples |mzscheme-examples|
3. Threads |mzscheme-threads|
4. The Vim access procedures |mzscheme-vim|
{Vi does not have any of these commands}
The MzScheme interface is available only if Vim was compiled with the
|+mzscheme| feature.
Based on the work of Brent Fulgham.
For downloading MzScheme and other info:
http://www.plt-scheme.org/software/mzscheme/
==============================================================================
1. Commands *mzscheme-commands*
*:mzscheme* *:mz*
:[range]mz[scheme] {stmt}
Execute MzScheme statement {stmt}. {not in Vi}
:[range]mz[scheme] << {endmarker}
{script}
{endmarker}
Execute inlined MzScheme script {script}.
Note: This command doesn't work if the MzScheme
feature wasn't compiled in. To avoid errors, see
|script-here|.
*:mzfile* *:mzf*
:[range]mzf[ile] {file} Execute the MzScheme script in {file}. {not in Vi}
All statements are executed in the namespace of the
buffer that was current during :mzfile start.
If you want to access other namespaces, use
'parameterize'.
All of these commands do essentially the same thing - they execute a piece of
MzScheme code, with the "current range" set to the given line
range.
In the case of :mzscheme, the code to execute is in the command-line.
In the case of :mzfile, the code to execute is the contents of the given file.
Each buffer has its own MzScheme namespace. Global namespace is bound to
the `global-namespace' value from the 'vimext' module.
MzScheme interface defines exception exn:vim, derived from exn.
It is raised for various Vim errors.
During compilation, the MzScheme interface will remember the current MzScheme
collection path. If you want to specify additional paths use the
'current-library-collection-paths' parameter. E.g., to cons the user-local
MzScheme collection path: >
:mz << EOF
(current-library-collection-paths
(cons
(build-path (find-system-path 'addon-dir) (version) "collects")
(current-library-collection-paths)))
EOF
<
All functionality is provided through module vimext.
The exn:vim is available without explicit import.
To avoid clashes with MzScheme, consider using prefix when requiring module,
e.g.: >
:mzscheme (require (prefix vim- vimext))
<
All the examples below assume this naming scheme. Note that you need to do
this again for every buffer.
The auto-instantiation can be achieved with autocommands, e.g. you can put
something like this in your .vimrc: >
au VimEnter,BufNew,BufNewFile,BufAdd,BufReadPre *
\:mz (require (prefix vim- vimext)
<
The global namespace just instantiated this module with the prefix "vimext:".
==============================================================================
2. Examples *mzscheme-examples*
>
:mzscheme (display "Hello")
:mzscheme (vim-set-buff-line 10 "This is line #10")
<
Inline script usage: >
function! <SID>SetFirstLine()
:mz << EOF
(display "!!!")
(vim-set-buff-line 1 "This is line #1")
(vim-beep)
EOF
endfunction
nmap <F9> :call <SID>SetFirstLine() <CR>
<
File execution: >
:mzfile supascript.scm
<
Accessing the current buffer namespace from an MzScheme program running in
another buffer within |:mzfile|-executed script : >
; Move to the window below
(vim-command "wincmd j")
; execute in the context of buffer, to which window belongs
; assume that buffer has 'textstring' defined
(parameterize ((current-namespace
(vim-get-buff-namespace (vim-curr-buff))))
(eval '(vim-set-buff-line 1 textstring)))
<
==============================================================================
3. Threads *mzscheme-threads*
The MzScheme interface supports threads. They are independent from OS threads,
thus scheduling is required. The option 'mzquantum' determines how often
Vim should poll for available MzScheme threads.
NOTE
Thread scheduling in the console version of Vim is less reliable than in the
GUI version.
==============================================================================
5. VIM Functions *mzscheme-vim*
*mzscheme-vimext*
The 'vimext' module provides access to procedures defined in the MzScheme
interface.
Common
------
(command {command-string}) Perform the vim ":Ex" style command.
(eval {expr-string}) Evaluate the vim command string.
NOTE clashes with MzScheme eval
(range-start) Start/End of the range passed with
(range-end) the Scheme command.
(beep) beep
(get-option {option-name} [buffer-or-window]) Get Vim option value (either
local or global, see set-option).
(set-option {string} [buffer-or-window])
Set a Vim option. String must have option
setting form (like optname=optval, or
optname+=optval, etc.) When called with
{buffer} or {window} the local option will
be set. The symbol 'global can be passed
as {buffer-or-window}. Then |:setglobal|
will be used.
global-namespace The MzScheme main namespace.
Buffers *mzscheme-buffer*
-------
(buff? {object}) Is object a buffer?
(buff-valid? {object}) Is object a valid buffer? (i.e.
corresponds to the real Vim buffer)
(get-buff-line {linenr} [buffer])
Get line from a buffer.
(set-buff-line {linenr} {string} [buffer])
Set a line in a buffer. If {string} is #f,
the line gets deleted. The [buffer]
argument is optional. If omitted, the
current buffer will be used.
(get-buff-line-list {start} {end} [buffer])
Get a list of lines in a buffer. {Start}
and {end} are 1-based. {Start} is
inclusive, {end} - exclusive.
(set-buff-line-list {start} {end} {string-list} [buffer])
Set a list of lines in a buffer. If
string-list is #f or null, the lines get
deleted. If a list is shorter than
{end}-{start} the remaining lines will
be deleted.
(get-buff-name [buffer]) Get a buffer's text name.
(get-buff-num [buffer]) Get a buffer's number.
(get-buff-size [buffer]) Get buffer line count.
(insert-buff-line-list {linenr} {string/string-list} [buffer])
Insert a list of lines into a buffer after
{linenr}. If {linenr} is 0, lines will be
inserted at start.
(curr-buff) Get the current buffer. Use procedures
from `vimcmd' module to change it.
(buff-count) Get count of total buffers in the editor.
(get-next-buff [buffer]) Get next buffer.
(get-prev-buff [buffer]) Get previous buffer. Return #f when there
are no more buffers.
(open-buff {filename}) Open a new buffer (for file "name")
(get-buff-by-name {buffername}) Get a buffer by its filename or #f
if there is no such buffer.
(get-buff-by-num {buffernum}) Get a buffer by its number (return #f if
there is no buffer with this number).
(get-buff-namespace [buffer]) Get buffer namespace.
Windows *mzscheme-window*
------
(win? {object}) Is object a window?
(win-valid? {object}) Is object a valid window (i.e. corresponds
to the real Vim window)?
(curr-win) Get the current window.
(win-count) Get count of windows.
(get-win-num [window]) Get window number.
(get-win-by-num {windownum}) Get window by its number.
(get-win-buffer [window]) Get the buffer for a given window.
(get-win-height [window])
(set-win-height {height} [window]) Get/Set height of window.
(get-win-width [window])
(set-win-width {width} [window])Get/Set width of window.
(get-win-list [buffer]) Get list of windows for a buffer.
(get-cursor [window]) Get cursor position in a window as
a pair (linenr . column).
(set-cursor (line . col) [window]) Set cursor position.
======================================================================
vim:tw=78:ts=8:sts=4:ft=help:norl: