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" Erlang refactor file
" Language: Erlang
" Maintainer: Pawel 'kTT' Salata <rockplayer.pl@gmail.com>
" URL: http://ktototaki.info
if exists("b:did_ftplugin_erlang")
finish
endif
" Don't load any other
let b:did_ftplugin_erlang=1
if !exists('g:erlangRefactoring') || g:erlangRefactoring == 0
finish
endif
if !exists('g:erlangWranglerPath')
let g:erlangWranglerPath = '/usr/share/wrangler/'
endif
if glob(g:erlangWranglerPath) == ""
call confirm("Wrong path to wrangler dir")
finish
endif
autocmd VimLeavePre * call StopWranglerServer()
let s:erlangServerName = "wrangler_vim"
" Starting background erlang session with wrangler on
function! StartWranglerServer()
let wranglerEbinDir = g:erlangWranglerPath . "/ebin"
let command = "erl_call -s -sname " . s:erlangServerName . " -x 'erl -pa " . wranglerEbinDir . "'"
call system(command)
call s:send_rpc('application', 'start', '[wrangler_app]')
endfunction
" Stopping erlang session
function! StopWranglerServer()
echo s:send_rpc('erlang', 'halt', '')
endfunction
" Sending rpc call to erlang session
function! s:send_rpc(module, fun, args)
let command = "erl_call -sname " . s:erlangServerName . " -a '" . a:module . " " . a:fun . " " . a:args . "'"
let result = system(command)
if match(result, 'erl_call: failed to connect to node .*') != -1
call StartWranglerServer()
return system(command)
endif
return result
endfunction
function! ErlangUndo()
echo s:send_rpc("wrangler_undo_server", "undo", "[]")
:e!
endfunction
function! s:trim(text)
return substitute(a:text, "^\\s\\+\\|\\s\\+$", "", "g")
endfunction
function! s:get_msg(result, tuple_start)
let msg_begin = '{' . a:tuple_start . ','
let matching_start = match(a:result, msg_begin)
if matching_start != -1
return s:trim(matchstr(a:result, '[^}]*', matching_start + strlen(msg_begin)))
endif
return ""
endfunction
" Check if there is an error in result
function! s:check_for_error(result)
let msg = s:get_msg(a:result, 'ok')
if msg != ""
return [0, msg]
endif
let msg = s:get_msg(a:result, 'warning')
if msg != ""
return [1, msg]
endif
let msg = s:get_msg(a:result, 'error')
if msg != ""
return [2, msg]
endif
return [-1, ""]
endfunction
" Sending apply changes to file
function! s:send_confirm()
let choice = confirm("What do you want?", "&Preview\n&Confirm\nCa&ncel", 0)
if choice == 1
echo "TODO: Display preview :)"
elseif choice == 2
let module = 'wrangler_preview_server'
let fun = 'commit'
let args = '[]'
return s:send_rpc(module, fun, args)
else
let module = 'wrangler_preview_server'
let fun = 'abort'
let args = '[]'
return s:send_rpc(module, fun, args)
echo "Canceled"
endif
endfunction
" Manually send confirm, for testing purpose only
function! SendConfirm()
echo s:send_confirm()
endfunction
" Format and send function extracton call
function! s:call_extract(start_line, start_col, end_line, end_col, name)
let file = expand("%:p")
let module = 'wrangler'
let fun = 'fun_extraction'
let args = '["' . file . '", {' . a:start_line . ', ' . a:start_col . '}, {' . a:end_line . ', ' . a:end_col . '}, "' . a:name . '", ' . &sw . ']'
let result = s:send_rpc(module, fun, args)
let [error_code, msg] = s:check_for_error(result)
if error_code != 0
call confirm(msg)
return 0
endif
echo "This files will be changed: " . matchstr(msg, "[^]]*", 1)
echo s:send_confirm()
return 1
endfunction
function! ErlangExtractFunction(mode) range
silent w!
let name = inputdialog("New function name: ")
if name != ""
if a:mode == "v"
let start_pos = getpos("'<")
let start_line = start_pos[1]
let start_col = start_pos[2]
let end_pos = getpos("'>")
let end_line = end_pos[1]
let end_col = end_pos[2]
elseif a:mode == "n"
let pos = getpos(".")
let start_line = pos[1]
let start_col = pos[2]
let end_line = pos[1]
let end_col = pos[2]
else
echo "Mode not supported."
return
endif
if s:call_extract(start_line, start_col, end_line, end_col, name)
let temp = &autoread
set autoread
:e
if temp == 0
set noautoread
endif
endif
else
echo "Empty function name. Ignoring."
endif
endfunction
nmap <A-r>e :call ErlangExtractFunction("n")<ENTER>
vmap <A-r>e :call ErlangExtractFunction("v")<ENTER>
function! s:call_rename(mode, line, col, name, search_path)
let file = expand("%:p")
let module = 'wrangler'
let fun = 'rename_' . a:mode
let args = '["' . file .'", '
if a:mode != "mod"
let args = args . a:line . ', ' . a:col . ', '
endif
let args = args . '"' . a:name . '", ["' . a:search_path . '"], ' . &sw . ']'
let result = s:send_rpc(module, fun, args)
let [error_code, msg] = s:check_for_error(result)
if error_code != 0
call confirm(msg)
return 0
endif
echo "This files will be changed: " . matchstr(msg, "[^]]*", 1)
echo s:send_confirm()
return 1
endfunction
function! ErlangRename(mode)
silent w!
if a:mode == "mod"
let name = inputdialog('Rename module to: ')
else
let name = inputdialog('Rename "' . expand("<cword>") . '" to: ')
endif
if name != ""
let search_path = expand("%:p:h")
"let search_path = inputdialog('Search path: ', expand("%:p:h"))
let pos = getpos(".")
let line = pos[1]
let col = pos[2]
let current_filename = expand("%")
let current_filepath = expand("%:p")
let new_filename = name . '.erl'
if s:call_rename(a:mode, line, col, name, search_path)
if a:mode == "mod"
execute ':bd ' . current_filename
execute ':e ' . new_filename
silent execute '!mv ' . current_filepath . ' ' . current_filepath . '.bak'
redraw!
else
let temp = &autoread
set autoread
:e
if temp == 0
set noautoread
endif
endif
endif
else
echo "Empty name. Ignoring."
endif
endfunction
function! ErlangRenameFunction()
call ErlangRename("fun")
endfunction
map <A-r>f :call ErlangRenameFunction()<ENTER>
function! ErlangRenameVariable()
call ErlangRename("var")
endfunction
map <A-r>v :call ErlangRenameVariable()<ENTER>
function! ErlangRenameModule()
call ErlangRename("mod")
endfunction
map <A-r>m :call ErlangRenameModule()<ENTER>
function! ErlangRenameProcess()
call ErlangRename("process")
endfunction
map <A-r>p :call ErlangRenameProcess()<ENTER>
function! s:call_tuple_fun_args(start_line, start_col, end_line, end_col, search_path)
let file = expand("%:p")
let module = 'wrangler'
let fun = 'tuple_funpar'
let args = '["' . file . '", {' . a:start_line . ', ' . a:start_col . '}, {' . a:end_line . ', ' . a:end_col . '}, ["' . a:search_path . '"], ' . &sw . ']'
let result = s:send_rpc(module, fun, args)
if s:check_for_error(result)
return 0
endif
call s:send_confirm()
return 1
endfunction
function! ErlangTupleFunArgs(mode)
silent w!
let search_path = expand("%:p:h")
"let search_path = inputdialog('Search path: ', expand("%:p:h"))
if a:mode == "v"
let start_pos = getpos("'<")
let start_line = start_pos[1]
let start_col = start_pos[2]
let end_pos = getpos("'>")
let end_line = end_pos[1]
let end_col = end_pos[2]
if s:call_tuple_fun_args(start_line, start_col, end_line, end_col, search_path)
let temp = &autoread
set autoread
:e
if temp == 0
set noautoread
endif
endif
elseif a:mode == "n"
let pos = getpos(".")
let line = pos[1]
let col = pos[2]
if s:call_tuple_fun_args(line, col, line, col, search_path)
let temp = &autoread
set autoread
:e
if temp == 0
set noautoread
endif
endif
else
echo "Mode not supported."
endif
endfunction
nmap <A-r>t :call ErlangTupleFunArgs("n")<ENTER>
vmap <A-r>t :call ErlangTupleFunArgs("v")<ENTER>
" vim: set foldmethod=marker:
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