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dotfiles/.vim/ftplugin/lisp/limp/bridge.vim

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2019-10-20 16:24:07 -05:00
"
" limp/vim/bridge.vim
"
" URL:
" http://mikael.jansson.be/hacking
"
" Description:
" Handle communication between Vim and Lisp, including boot, connect and
" display. Relies on 'lisp.sh' from the Limp package.
"
" Version:
" 0.2
"
" Date:
" 2008-04-25
"
" Authors:
" Mikael Jansson <mail@mikael.jansson.be>
" Larry Clapp <vim@theclapp.org>
" Changelog:
" 2008-08-26 by Mikael Jansson <mail@mikael.jansson.be>
" * Optionally specify core at startup and exit.
"
" 2008-08-25 by Mikael Jansson <mail@mikael.jansson.be>
" * Now boots a new Lisp or connects to an existing via screen.
" No longer needs the funnel (although it does need a file to read to/from
" screen: it doesn't seem as if 'stuff' can handle very large amounts of
" texts)
"
" 2008-08-18 by Mikael Jansson <mail@mikael.jansson.be>
" * Tab-completed prompt that lets you choose the Lisp process to connect to.
" Moved the startup to before the loaded check.
"-------------------------------------------------------------------
" startup
"-------------------------------------------------------------------
" only do these things once
let s:Limp_version="0.3.5-pre"
let s:Limp_location = expand("$LIMPRUNTIME")
"if s:Limp_location == "" || s:Limp_location == "$LIMPRUNTIME"
if !filereadable(s:Limp_location . "/vim/limp.vim")
let s:Limp_location = "/usr/local/limp/" . s:Limp_version
endif
" prefix for the pipe used for communication
let s:limp_bridge_channel_base = $HOME . "/.limp_bridge_channel-"
let s:limp_bridge_connected=0
exe "setlocal complete+=s" . s:Limp_location . "/vim/thesaurus"
"-------------------------------------------------------------------
" talk to multiple Lisps using LimpBridge_connect()
"-------------------------------------------------------------------
fun! LimpBridge_complete_lisp(A,L,P)
let prefix = s:limp_bridge_channel_base
"echom "ls -1 ".prefix."*"
let output = system("ls -1 ".prefix."*")
if stridx(output, prefix."*") >= 0
echom "No Lisps started yet?"
return
endif
let files = split(output, "\n")
let names = []
for f in files
let names += [f[strlen(prefix):]]
endfor
return names
endfun
" optionally specify the screen id to connect to
"
" return values:
"
" -1 if user didn't want to connect
" 0 if connection wasn't possible
" 1 if the user did connect
" 2 if the user was already connected
"
fun! LimpBridge_connect(...)
if s:limp_bridge_connected == 1
echom "Already connected to Lisp!"
return 2
endif
if a:0 == 1 && a:1 != ""
" format: 7213.limp_listener-foo
let pid = a:1[:stridx(a:1, '.')-1]
let fullname = a:1[stridx(a:1, '.')+1:]
let name = fullname[strlen("limp_listener-"):]
let s:limp_bridge_channel = s:limp_bridge_channel_base.name.".".pid
else
let s:limp_bridge_channel = s:limp_bridge_channel_base
let name = input("Connect to [boot new]: ", "", "customlist,LimpBridge_complete_lisp")
if name == ""
return -1
endif
let s:limp_bridge_channel .= name
if 0 == filewritable(s:limp_bridge_channel) "|| s:limp_bridge_channel = s:limp_bridge_channel_base
echom "Not a Limp channel."
return 0
endif
endif
" extract the PID from format: foo.104982
" (backward from screen sty naming to ease tab completion)
" bridge id is the file used for communication between Vim and screen
let s:limp_bridge_id = strpart(s:limp_bridge_channel, strlen(s:limp_bridge_channel_base))
" bridge screenid is the screen in which the Lisp is running
let s:limp_bridge_screenid = s:limp_bridge_id[strridx(s:limp_bridge_id, '.')+1:]
"let s:limp_bridge_scratch = $HOME . "/.limp_bridge_scratch-" . s:limp_bridge_id
let s:limp_bridge_test = $HOME . '/.limp_bridge_test-' . s:limp_bridge_id
silent exe "new" s:limp_bridge_channel
if exists( "#BufEnter#*.lisp#" )
doauto BufEnter x.lisp
endif
setlocal syntax=lisp
" XXX: in ViLisp, buftype=nowrite, but w/ limp_bridge_channel, vim
" complains about the file being write-only.
"setlocal buftype=nowrite
setlocal bufhidden=hide
setlocal nobuflisted
setlocal noswapfile
hide
silent exe "new" s:limp_bridge_test
if exists( "#BufEnter#*.lisp#" )
doauto BufEnter x.lisp
endif
setlocal syntax=lisp
" setlocal buftype=nofile
setlocal bufhidden=hide
setlocal nobuflisted
" setlocal noswapfile
hide
" hide from the user that we created and deleted (hid, really) a couple of
" buffers
"normal!
redraw
let s:limp_bridge_connected=1
echom "Welcome to Limp. May your journey be pleasant."
return 1
endfun
fun! LimpBridge_connection_status()
if s:limp_bridge_connected == 1
return "Connected to ".s:limp_bridge_id
else
return "Disconnected"
endif
endfun
fun! LimpBridge_disconnect()
let s:limp_bridge_connected = 0
let s:limp_bridge_id = "<disconnected>"
endfun
"
" optionally, specify the path of the core to save to
"
fun! LimpBridge_quit_lisp(...)
" we were given a file
if a:0 == 1 && a:1 != ""
let core = a:1
call LimpBridge_send_to_lisp("(sb-ext:save-lisp-and-die \"".core."\")\n")
echom "Lisp ".s:limp_bridge_id." is gone, core saved to ".core."."
else
call LimpBridge_send_to_lisp("(sb-ext:quit)\n")
echom "Lisp ".s:limp_bridge_id." is gone."
endif
call LimpBridge_disconnect()
endfun
fun! LimpBridge_shutdown_lisp()
if s:limp_bridge_connected == 1
let core = input("Name of core to save [none]: ", "", "file")
call LimpBridge_quit_lisp(core)
else
echom "Not connected."
endif
endfun
"
" when not connected, start new or connect to existing
" otherwise, switch to Lisp (screen)
fun! LimpBridge_boot_or_connect_or_display()
if s:limp_bridge_connected
" is it still running?
let status = system("screen -ls")
if stridx(status, s:limp_bridge_screenid) == -1
call LimpBridge_disconnect()
return
endif
let cmd = "screen -x ".s:limp_bridge_screenid
if has("gui_running") || b:listener_always_open_window == 1
let cmd = "xterm -e " . cmd
if b:listener_keep_open == 1
let cmd .= " &"
endif
endif
silent exe "!".cmd
redraw!
else
" connect to a fresh Lisp
let what = LimpBridge_connect()
if what <= 0
" user didn't want to connect, let's boot!
let name = input("Name the Lisp: ")
if strlen(name) == 0
" give up
return
endif
let core = input("Path to core to boot [use system-default]: ", "", "file")
let core_opt = ""
if filereadable(core)
let core_opt = "-c ".core
echom "Booting ".core."..."
else
echom "Booting..."
endif
let styfile = tempname()
let cmd = s:Limp_location . "/bin/lisp.sh ".core_opt."-s ".styfile." -b ".name
call system(cmd)
while getfsize(styfile) <= len("limp_listener")
sleep 200m
endwhile
" needs to be binary, or readfile() expects a newline...
let lines = readfile(styfile, 'b')
if len(lines) < 1
echom "Error getting screen ID!"
return
endif
let sty = lines[0]
call delete(styfile)
call LimpBridge_connect(sty)
call LimpBridge_boot_or_connect_or_display()
endif
endif
endfun
augroup LimpBridge
au!
autocmd BufLeave .LimpBridge_* setlocal nobuflisted
autocmd BufLeave *.lisp let g:limp_bridge_last_lisp = bufname( "%" )
augroup END
"-------------------------------------------------------------------
" plugin <-> function mappings
"-------------------------------------------------------------------
nnoremap <silent> <buffer> <Plug>LimpBootConnectDisplay :call LimpBridge_boot_or_connect_or_display()<CR>
nnoremap <silent> <buffer> <Plug>LimpDisconnect :call LimpBridge_disconnect()<CR>
nnoremap <silent> <buffer> <Plug>LimpShutdownLisp :call LimpBridge_shutdown_lisp()<CR>
nnoremap <silent> <buffer> <Plug>EvalTop :call LimpBridge_eval_top_form()<CR>
nnoremap <silent> <buffer> <Plug>EvalCurrent :call LimpBridge_eval_current_form()<CR>
nnoremap <silent> <buffer> <Plug>EvalExpression :call LimpBridge_prompt_eval_expression()<CR>
vnoremap <silent> <buffer> <Plug>EvalBlock :call LimpBridge_eval_block()<cr>
nnoremap <silent> <buffer> <Plug>AbortReset :call LimpBridge_send_to_lisp( "ABORT\n" )<CR>
nnoremap <silent> <buffer> <Plug>AbortInterrupt :call LimpBridge_send_to_lisp( "" )<CR>
nnoremap <silent> <buffer> <Plug>TestCurrent :call LimpBridge_stuff_current_form()<CR>
nnoremap <silent> <buffer> <Plug>TestTop :call LimpBridge_stuff_top_form()<CR>
nnoremap <silent> <buffer> <Plug>LoadThisFile :call LimpBridge_send_to_lisp( "(load \"" . expand( "%:p" ) . "\")\n")<CR>
nnoremap <silent> <buffer> <Plug>LoadAnyFile :call LimpBridge_send_to_lisp( "(load \"" . expand( "%:p:r" ) . "\")\n")<CR>
nnoremap <silent> <buffer> <Plug>CompileFile :w! <bar> call LimpBridge_send_to_lisp("(compile-file \"".expand("%:p")."\")\n")<CR>
" XXX: What's the proprer syntax for calling >1 Plug?
""nnoremap <buffer> <Plug>CompileAndLoadFile <Plug>CompileFile <bar> <Plug>LoadAnyFile
nnoremap <silent> <buffer> <Plug>CompileAndLoadFile :w! <bar> call LimpBridge_send_to_lisp("(compile-file \"".expand("%:p")."\")\n") <bar> call LimpBridge_send_to_lisp( "(load \"" . expand( "%:p:r" ) . "\")\n")<CR>
" Goto Test Buffer:
" Goto Split: split current buffer and goto test buffer
nnoremap <silent> <buffer> <Plug>GotoTestBuffer :call LimpBridge_goto_buffer_or_window(g:limp_bridge_test)<CR>
nnoremap <silent> <buffer> <Plug>GotoTestBufferAndSplit :sb <bar> call LimpBridge_goto_buffer_or_window(g:limp_bridge_test)<CR>
" Goto Last: return to g:limp_bridge_last_lisp, i.e. last buffer
nnoremap <silent> <buffer> <Plug>GotoLastLispBuffer :call LimpBridge_goto_buffer_or_window(g:limp_bridge_last_lisp)<CR>
" HyperSpec:
nnoremap <silent> <buffer> <Plug>HyperspecExact :call LimpBridge_hyperspec("exact", 0)<CR>
nnoremap <silent> <buffer> <Plug>HyperspecPrefix :call LimpBridge_hyperspec("prefix", 1)<CR>
nnoremap <silent> <buffer> <Plug>HyperspecSuffix :call LimpBridge_hyperspec("suffix", 1)<CR>
nnoremap <silent> <buffer> <Plug>HyperspecGrep :call LimpBridge_hyperspec("grep", 1)<CR>
nnoremap <silent> <buffer> <Plug>HyperspecFirstLetterIndex :call LimpBridge_hyperspec("index", 0)<CR>
nnoremap <silent> <buffer> <Plug>HyperspecFullIndex :call LimpBridge_hyperspec("index-page", 0)<CR>
" Help Describe: ask Lisp about the current symbol
nnoremap <silent> <buffer> <Plug>HelpDescribe :call LimpBridge_send_to_lisp("(describe '".expand("<cword>").")")<CR>
"-------------------------------------------------------------------
" library
"-------------------------------------------------------------------
" assume that all of the file has been loaded & defined once
" if one of the functions are defined.
if exists("*LimpBridge_goto_buffer_or_window")
finish
endif
function! LimpBridge_goto_buffer_or_window( buff )
if -1 == bufwinnr( a:buff )
exe "hide bu" a:buff
else
exe bufwinnr( a:buff ) . "wincmd w"
endif
endfunction
function! LimpBridge_get_pos()
" what buffer are we in?
let bufnr = bufnr( "%" )
" get current position
let c_cur = virtcol( "." )
let l_cur = line( "." )
normal! H
let l_top = line( "." )
let pos = bufnr . "|" . l_top . "," . l_cur . "," . c_cur
" go back
exe "normal! " l_cur . "G" . c_cur . "|"
return( pos )
endfunction
function! LimpBridge_goto_pos( pos )
let mx = '\(\d\+\)|\(\d\+\),\(\d\+\),\(\d\+\)'
let bufnr = substitute( a:pos, mx, '\1', '' )
let l_top = substitute( a:pos, mx, '\2', '' )
let l_cur = substitute( a:pos, mx, '\3', '' )
let c_cur = substitute( a:pos, mx, '\4', '' )
silent exe "hide bu" bufnr
silent exe "normal! " . l_top . "Gzt" . l_cur . "G" . c_cur . "|"
endfunction
function! LimpBridge_yank( motion )
let value = ''
let p = LimpBridge_get_pos()
silent! exec 'normal!' a:motion
let new_p = LimpBridge_get_pos()
" did we move?
if p != new_p
" go back
silent! exec 'normal!' a:motion
let old_l = @l
exec 'normal! "ly' . a:motion
let value = @l
let @l = old_l
endif
call LimpBridge_goto_pos( p )
return( value )
endfunction
" copy an expression to a buffer
function! LimpBridge_send_sexp_to_buffer( sexp, buffer )
let p = LimpBridge_get_pos()
" go to the given buffer, go to the bottom
exe "hide bu" a:buffer
silent normal! G
" tried append() -- doesn't work the way I need it to
let old_l = @l
let @l = a:sexp
silent exe "put l"
" normal! "lp
let @l = old_l
call LimpBridge_goto_pos( p )
endfunction
" destroys contents of LimpBridge_channel buffer
function! LimpBridge_send_to_lisp( sexp )
if a:sexp == ''
return
endif
if !s:limp_bridge_connected
echom "Not connected to Lisp!"
return
endif
let p = LimpBridge_get_pos()
" goto LimpBridge_channel, delete it, put s-exp, write it to lisp
try
exe "hide bu" s:limp_bridge_channel
exe "%d"
normal! 1G
" tried append() -- doesn't work the way I need it to
let old_l = @l
let @l = a:sexp
normal! "lP
let @l = old_l
silent exe 'w!'
call system('screen -x '.s:limp_bridge_screenid.' -p 0 -X eval "readbuf" "paste ."')
catch /^Vim:E211:/
echom "Lisp is gone!"
" file not available, Lisp disappeared
call LimpBridge_disconnect()
endtry
call LimpBridge_goto_pos( p )
endfunction
function! LimpBridge_prompt_eval_expression()
let whatwhat = input("Eval: ")
call LimpBridge_send_to_lisp(whatwhat)
endfun
" Actually evals current top level form
function! LimpBridge_eval_top_form()
" save position
let p = LimpBridge_get_pos()
silent! exec "normal! 99[("
call LimpBridge_send_to_lisp( LimpBridge_yank( "%" ) )
" fix cursor position, in case of error below
call LimpBridge_goto_pos( p )
endfunction
function! LimpBridge_eval_current_form()
" save position
let pos = LimpBridge_get_pos()
" find & yank current s-exp
normal! [(
let sexp = LimpBridge_yank( "%" )
call LimpBridge_send_to_lisp( sexp )
call LimpBridge_goto_pos( pos )
endfunction
function! LimpBridge_eval_block() range
" save position
let pos = LimpBridge_get_pos()
" yank current visual block
let old_l = @l
'<,'> yank l
let sexp = @l
let @l = old_l
call LimpBridge_send_to_lisp( sexp )
call LimpBridge_goto_pos( pos )
endfunction
function! LimpBridge_stuff_current_form()
" save position
let pos = LimpBridge_get_pos()
" find & yank current s-exp
normal! [(
call LimpBridge_send_sexp_to_buffer( LimpBridge_yank( "%" ), s:limp_bridge_test )
call LimpBridge_goto_pos( pos )
endfunction
function! LimpBridge_stuff_top_form()
" save position
let pos = LimpBridge_get_pos()
" find & yank top-level s-exp
silent! exec "normal! 99[("
call LimpBridge_send_sexp_to_buffer( LimpBridge_yank( "%" ), s:limp_bridge_test )
call LimpBridge_goto_pos( pos )
endfunction
function! LimpBridge_hyperspec(type, make_page)
" get current word under cursor
let word = expand( "<cword>" )
let cmd = "! perl " . s:Limp_location . "/bin/limp-hyperspec.pl"
let cmd = cmd . " " . a:type . " " . a:make_page . " '" . word . "'"
silent! exe cmd
redraw!
endfunction
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