vim/bundle/vimclojure/autoload/vimclojure.vim @ f7271f80d656

vim: kill bufexplorer
author Steve Losh <steve@stevelosh.com>
date Tue, 16 Nov 2010 16:54:38 -0500
parents fc8ea0a42a45
children 43e9e87b0120
" Part of Vim filetype plugin for Clojure
" Language:     Clojure
" Maintainer:   Meikel Brandmeyer <mb@kotka.de>

let s:save_cpo = &cpo
set cpo&vim

function! vimclojure#WarnDeprecated(old, new)
	echohl WarningMsg
	echomsg a:old . " is deprecated! Use " . a:new . "!"
	echomsg "eg. let " . a:new . " = <desired value here>"
	echohl None
endfunction

" Configuration
if !exists("g:vimclojure#HighlightBuiltins")
	if exists("g:clj_highlight_builtins")
		call vimclojure#WarnDeprecated("g:clj_highlight_builtins",
					\ "vimclojure#HighlightBuiltins")
		let vimclojure#HighlightBuiltins = g:clj_highlight_builtins
	else
		let vimclojure#HighlightBuiltins = 1
	endif
endif

if exists("g:clj_highlight_contrib")
	echohl WarningMsg
	echomsg "clj_highlight_contrib is deprecated! It's removed without replacement!"
	echohl None
endif

if !exists("g:vimclojure#DynamicHighlighting")
	if exists("g:clj_dynamic_highlighting")
		call vimclojure#WarnDeprecated("g:clj_dynamic_highlighting",
					\ "vimclojure#DynamicHighlighting")
		let vimclojure#DynamicHighlighting = g:clj_dynamic_highlighting
	else
		let vimclojure#DynamicHighlighting = 0
	endif
endif

if !exists("g:vimclojure#ParenRainbow")
	if exists("g:clj_paren_rainbow")
		call vimclojure#WarnDeprecated("g:clj_paren_rainbow",
					\ "vimclojure#ParenRainbow")
		let vimclojure#ParenRainbow = g:clj_paren_rainbow
	else
		let vimclojure#ParenRainbow = 0
	endif
endif

if !exists("g:vimclojure#WantNailgun")
	if exists("g:clj_want_gorilla")
		call vimclojure#WarnDeprecated("g:clj_want_gorilla",
					\ "vimclojure#WantNailgun")
		let vimclojure#WantNailgun = g:clj_want_gorilla
	else
		let vimclojure#WantNailgun = 0
	endif
endif

if !exists("g:vimclojure#UseErrorBuffer")
	let vimclojure#UseErrorBuffer = 1
endif

function! vimclojure#ReportError(msg)
	if g:vimclojure#UseErrorBuffer
		let buf = g:vimclojure#ResultBuffer.New()
		call buf.showText(a:msg)
		wincmd p
	else
		echoerr substitute(a:msg, '\n\(\t\?\)', ' ', 'g')
	endif
endfunction

function! vimclojure#SynIdName()
	return synIDattr(synID(line("."), col("."), 0), "name")
endfunction

function! vimclojure#GetExceptionFoldLevel(lnum)
	if a:lnum == 1
		return 0
	endif

	let pline = getline(a:lnum - 1)
	let line  = getline(a:lnum)

	if line[0] == '+' && pline[0] == '!'
		return ">1"
	endif

	if line[0] != '+' && line[0] != '|'
		return 0
	endif

	return "="
endfunction

function! vimclojure#WithSaved(closure)
	let v = a:closure.get(a:closure.tosafe)
	try
		let r = a:closure.f()
	finally
		call a:closure.set(a:closure.tosafe, v)
	endtry
	return r
endfunction

function! vimclojure#WithSavedPosition(closure)
	let a:closure['tosafe'] = "."
	let a:closure['get'] = function("getpos")
	let a:closure['set'] = function("setpos")
	return vimclojure#WithSaved(a:closure)
endfunction

function! vimclojure#WithSavedRegister(closure)
	let a:closure['get'] = function("getreg")
	let a:closure['set'] = function("setreg")
	return vimclojure#WithSaved(a:closure)
endfunction

function! vimclojure#WithSavedOption(closure)
	function a:closure.get(option)
		execute "let val = &" . a:option
		return val
	endfunction

	function a:closure.set(option, value)
		execute "let &" . a:option . " = a:value"
	endfunction

	return vimclojure#WithSaved(a:closure)
endfunction

function! vimclojure#Yank(r, how)
	let closure = {'tosafe': a:r, 'yank': a:how}

	function closure.f() dict
		silent execute self.yank
		return getreg(self.tosafe)
	endfunction

	return vimclojure#WithSavedRegister(closure)
endfunction

function! vimclojure#EscapePathForOption(path)
	let path = fnameescape(a:path)

	" Hardcore escapeing of whitespace...
	let path = substitute(path, '\', '\\\\', 'g')
	let path = substitute(path, '\ ', '\\ ', 'g')

	return path
endfunction

function! vimclojure#AddPathToOption(path, option)
	let path = vimclojure#EscapePathForOption(a:path)
	execute "setlocal " . a:option . "+=" . path
endfunction

function! vimclojure#AddCompletions(ns)
	let completions = split(globpath(&rtp, "ftplugin/clojure/completions-" . a:ns . ".txt"), '\n')
	if completions != []
		call vimclojure#AddPathToOption('k' . completions[0], 'complete')
	endif
endfunction

" Nailgun part:
function! vimclojure#ExtractSexpr(toplevel)
	let closure = { "flag" : (a:toplevel ? "r" : "") }

	function closure.f() dict
		if searchpairpos('(', '', ')', 'bW' . self.flag,
					\ 'vimclojure#SynIdName() !~ "clojureParen\\d"') != [0, 0]
			return vimclojure#Yank('l', 'normal! "ly%')
		end
		return ""
	endfunction

	return vimclojure#WithSavedPosition(closure)
endfunction

function! vimclojure#BufferName()
	let file = expand("%")
	if file == ""
		let file = "UNNAMED"
	endif
	return file
endfunction

" Key mappings and Plugs
function! vimclojure#MakePlug(mode, plug, f, args)
	execute a:mode . "noremap <Plug>Clojure" . a:plug
				\ . " :call " . a:f . "(" . a:args . ")<CR>"
endfunction

function! vimclojure#MakeProtectedPlug(mode, plug, f, args)
	execute a:mode . "noremap <Plug>Clojure" . a:plug
				\ . " :call vimclojure#ProtectedPlug(function(\""
				\ . a:f . "\"), [ " . a:args . " ])<CR>"
endfunction

function! vimclojure#MapPlug(mode, keys, plug)
	if !hasmapto("<Plug>Clojure" . a:plug)
		execute a:mode . "map <buffer> <unique> <silent> <LocalLeader>" . a:keys
					\ . " <Plug>Clojure" . a:plug
	endif
endfunction

function! vimclojure#MapCommandPlug(mode, keys, plug)
	if exists("b:vimclojure_namespace")
		call vimclojure#MapPlug(a:mode, a:keys, a:plug)
	elseif g:vimclojure#WantNailgun == 1
		let msg = ':call vimclojure#ReportError("VimClojure could not initialise the server connection.\n'
					\ . 'That means you will not be able to use the interactive features.\n'
					\ . 'Reasons might be that the server is not running or that there is\n'
					\ . 'some trouble with the classpath.\n\n'
					\ . 'VimClojure will *not* start the server for you or handle the classpath.\n'
					\ . 'There is a plethora of tools like ivy, maven, gradle and leiningen,\n'
					\ . 'which do this better than VimClojure could ever do it.")'
		execute a:mode . "map <buffer> <silent> <LocalLeader>" . a:keys
					\ . " " . msg . "<CR>"
	endif
endfunction

if !exists("*vimclojure#ProtectedPlug")
	function vimclojure#ProtectedPlug(f, args)
		try
			return call(a:f, a:args)
		catch /.*/
			call vimclojure#ReportError(v:exception)
		endtry
	endfunction
endif

" A Buffer...
if !exists("g:vimclojure#SplitPos")
	let vimclojure#SplitPos = "top"
endif

if !exists("g:vimclojure#SplitSize")
	let vimclojure#SplitSize = ""
endif

let vimclojure#Buffer = {}

function! vimclojure#Buffer.New() dict
	let instance = copy(self)

	call self.MakeBuffer()
	call self.Init(instance)

	return instance
endfunction

function! vimclojure#Buffer.MakeBuffer()
	if g:vimclojure#SplitPos == "left" || g:vimclojure#SplitPos == "right"
		let o_sr = &splitright
		if g:vimclojure#SplitPos == "left"
			set nosplitright
		else
			set splitright
		end
		execute printf("%svnew", g:vimclojure#SplitSize)
		let &splitright = o_sr
	else
		let o_sb = &splitbelow
		if g:vimclojure#SplitPos == "bottom"
			set splitbelow
		else
			set nosplitbelow
		end
		execute printf("%snew", g:vimclojure#SplitSize)
		let &splitbelow = o_sb
	endif
endfunction

function! vimclojure#Buffer.Init(instance)
	let a:instance._buffer = bufnr("%")
endfunction

function! vimclojure#Buffer.goHere() dict
	execute "buffer! " . self._buffer
endfunction

function! vimclojure#Buffer.goHereWindow() dict
	execute "sbuffer! " . self._buffer
endfunction

function! vimclojure#Buffer.resize() dict
	call self.goHere()
	let size = line("$")
	if size < 3
		let size = 3
	endif
	execute "resize " . size
endfunction

function! vimclojure#Buffer.showText(text) dict
	call self.goHere()
	if type(a:text) == type("")
		let text = split(a:text, '\n')
	else
		let text = a:text
	endif
	call append(line("$"), text)
endfunction

function! vimclojure#Buffer.showOutput(output) dict
	call self.goHere()
	if a:output.value == 0
		if a:output.stdout != ""
			call self.showText(a:output.stdout)
		endif
		if a:output.stderr != ""
			call self.showText(a:output.stderr)
		endif
	else
		call self.showText(a:output.value)
	endif
endfunction

function! vimclojure#Buffer.clear() dict
	1
	normal! "_dG
endfunction

function! vimclojure#Buffer.close() dict
	execute "bdelete! " . self._buffer
endfunction

" The transient buffer, used to display results.
let vimclojure#ResultBuffer = copy(vimclojure#Buffer)
let vimclojure#ResultBuffer["__superBufferInit"] = vimclojure#ResultBuffer["Init"]
let vimclojure#ResultBuffer.__instance = []

function! vimclojure#ResultBuffer.New() dict
	if g:vimclojure#ResultBuffer.__instance != []
		let closure = {
					\ 'instance' : g:vimclojure#ResultBuffer.__instance[0],
					\ 'tosafe'   : 'switchbuf',
					\ 'class'    : self
					\ }
		function closure.f() dict
			set switchbuf=useopen
			call self.instance.goHereWindow()
			call self.instance.clear()
			return self.class.Init(self.instance)
		endfunction

		return vimclojure#WithSavedOption(closure)
	endif

	let instance = copy(self)
	let g:vimclojure#ResultBuffer.__instance = [ instance ]

	call g:vimclojure#Buffer.MakeBuffer()
	call self.__superBufferInit(instance)
	call self.Init(instance)

	return instance
endfunction

function! vimclojure#ResultBuffer.Init(instance) dict
	setlocal noswapfile
	setlocal buftype=nofile
	setlocal bufhidden=wipe

	call vimclojure#MapPlug("n", "p", "CloseResultBuffer")

	call a:instance.clear()
	let leader = exists("g:maplocalleader") ? g:maplocalleader : "\\"
	call append(0, "; Use " . leader . "p to close this buffer!")

	return a:instance
endfunction

function! vimclojure#ResultBuffer.CloseBuffer() dict
	if g:vimclojure#ResultBuffer.__instance != []
		let instance = g:vimclojure#ResultBuffer.__instance[0]
		let g:vimclojure#ResultBuffer.__instance = []
		call instance.close()
	endif
endfunction

function! s:InvalidateResultBufferIfNecessary(buf)
	if g:vimclojure#ResultBuffer.__instance != []
				\ && g:vimclojure#ResultBuffer.__instance[0]._buffer == a:buf
		let g:vimclojure#ResultBuffer.__instance = []
	endif
endfunction

augroup VimClojureResultBuffer
	au BufDelete * call s:InvalidateResultBufferIfNecessary(expand("<abuf>"))
augroup END

" A special result buffer for clojure output.
let vimclojure#ClojureResultBuffer = copy(vimclojure#ResultBuffer)
let vimclojure#ClojureResultBuffer["__superResultBufferInit"] =
			\ vimclojure#ResultBuffer["Init"]
let vimclojure#ClojureResultBuffer["__superResultBufferShowOutput"] =
			\ vimclojure#ResultBuffer["showOutput"]

function! vimclojure#ClojureResultBuffer.Init(instance) dict
	call self.__superResultBufferInit(a:instance)
	let b:vimclojure_clojure_result_buffer = 1

	set filetype=clojure

	return a:instance
endfunction

function! vimclojure#ClojureResultBuffer.showOutput(text) dict
	call self.__superResultBufferShowOutput(a:text)
	normal G
endfunction

" Nails
if !exists("vimclojure#NailgunClient")
	let vimclojure#NailgunClient = "ng"
endif

function! vimclojure#ShellEscapeArguments(vals)
	let closure = { 'vals': a:vals, 'tosafe': 'shellslash' }

	function closure.f() dict
		set noshellslash
		return map(copy(self.vals), 'shellescape(v:val)')
	endfunction

	return vimclojure#WithSavedOption(closure)
endfunction

function! vimclojure#ExecuteNailWithInput(nail, input, ...)
	if type(a:input) == type("")
		let input = split(a:input, '\n', 1)
	else
		let input = a:input
	endif

	let inputfile = tempname()
	try
		call writefile(input, inputfile)

		let cmdline = vimclojure#ShellEscapeArguments(
					\ [g:vimclojure#NailgunClient, "vimclojure.Nail", a:nail]
					\ + a:000)
		let cmd = join(cmdline, " ") . " <" . inputfile
		" Add hardcore quoting for Windows
		if has("win32") || has("win64")
			let cmd = '"' . cmd . '"'
		endif

		let output = system(cmd)

		if v:shell_error
			throw "Error executing Nail! (" . v:shell_error . ")\n" . output
		endif
	finally
		call delete(inputfile)
	endtry

	execute "let result = " . substitute(output, '\n$', '', '')
	return result
endfunction

function! vimclojure#ExecuteNail(nail, ...)
	return call(function("vimclojure#ExecuteNailWithInput"), [a:nail, ""] + a:000)
endfunction

function! vimclojure#FilterNail(nail, rngStart, rngEnd, ...)
	let cmdline = [g:vimclojure#NailgunClient,
				\ "vimclojure.Nail", a:nail]
				\ + vimclojure#ShellEscapeArguments(a:000)
	let cmd = a:rngStart . "," . a:rngEnd . "!" . join(cmdline, " ")

	silent execute cmd
endfunction

function! vimclojure#DocLookup(word)
	if a:word == ""
		return
	endif

	let doc = vimclojure#ExecuteNailWithInput("DocLookup", a:word,
				\ "-n", b:vimclojure_namespace)
	let buf = g:vimclojure#ResultBuffer.New()
	call buf.showOutput(doc)
	wincmd p
endfunction

function! vimclojure#FindDoc()
	let pattern = input("Pattern to look for: ")
	let doc = vimclojure#ExecuteNailWithInput("FindDoc", pattern)
	let buf = g:vimclojure#ResultBuffer.New()
	call buf.showOutput(doc)
	wincmd p
endfunction

let s:DefaultJavadocPaths = {
			\ "java" : "http://java.sun.com/javase/6/docs/api/",
			\ "org/apache/commons/beanutils" : "http://commons.apache.org/beanutils/api/",
			\ "org/apache/commons/chain" : "http://commons.apache.org/chain/api-release/",
			\ "org/apache/commons/cli" : "http://commons.apache.org/cli/api-release/",
			\ "org/apache/commons/codec" : "http://commons.apache.org/codec/api-release/",
			\ "org/apache/commons/collections" : "http://commons.apache.org/collections/api-release/",
			\ "org/apache/commons/logging" : "http://commons.apache.org/logging/apidocs/",
			\ "org/apache/commons/mail" : "http://commons.apache.org/email/api-release/",
			\ "org/apache/commons/io" : "http://commons.apache.org/io/api-release/"
			\ }

if !exists("vimclojure#JavadocPathMap")
	let vimclojure#JavadocPathMap = {}
endif

for k in keys(s:DefaultJavadocPaths)
	if !has_key(vimclojure#JavadocPathMap, k)
		let vimclojure#JavadocPathMap[k] = s:DefaultJavadocPaths[k]
	endif
endfor

if !exists("vimclojure#Browser")
	if has("win32") || has("win64")
		let vimclojure#Browser = "start"
	elseif has("mac")
		let vimclojure#Browser = "open"
	else
		let vimclojure#Browser = "firefox -new-window"
	endif
endif

function! vimclojure#JavadocLookup(word)
	let word = substitute(a:word, "\\.$", "", "")
	let path = vimclojure#ExecuteNailWithInput("JavadocPath", word,
				\ "-n", b:vimclojure_namespace)

	if path.stderr != ""
		let buf = g:vimclojure#ResultBuffer.New()
		call buf.showOutput(path)
		wincmd p
		return
	endif

	let match = ""
	for pattern in keys(g:vimclojure#JavadocPathMap)
		if path.value =~ "^" . pattern && len(match) < len(pattern)
			let match = pattern
		endif
	endfor

	if match == ""
		echoerr "No matching Javadoc URL found for " . path.value
	endif

	let url = g:vimclojure#JavadocPathMap[match] . path.value
	call system(join([g:vimclojure#Browser, url], " "))
endfunction

function! vimclojure#SourceLookup(word)
	let source = vimclojure#ExecuteNailWithInput("SourceLookup", a:word,
				\ "-n", b:vimclojure_namespace)
	let buf = g:vimclojure#ClojureResultBuffer.New()
	call buf.showOutput(source)
	wincmd p
endfunction

function! vimclojure#MetaLookup(word)
	let meta = vimclojure#ExecuteNailWithInput("MetaLookup", a:word,
				\ "-n", b:vimclojure_namespace)
	let buf = g:vimclojure#ClojureResultBuffer.New()
	call buf.showOutput(meta)
	wincmd p
endfunction

function! vimclojure#GotoSource(word)
	let pos = vimclojure#ExecuteNailWithInput("SourceLocation", a:word,
				\ "-n", b:vimclojure_namespace)

	if pos.stderr != ""
		let buf = g:vimclojure#ResultBuffer.New()
		call buf.showOutput(pos)
		wincmd p
		return
	endif

	if !filereadable(pos.value.file)
		let file = findfile(pos.value.file)
		if file == ""
			echoerr pos.value.file . " not found in 'path'"
			return
		endif
		let pos.value.file = file
	endif

	execute "edit " . pos.value.file
	execute pos.value.line
endfunction

" Evaluators
function! vimclojure#MacroExpand(firstOnly)
	let sexp = vimclojure#ExtractSexpr(0)
	let ns = b:vimclojure_namespace

	let cmd = ["MacroExpand", sexp, "-n", ns]
	if a:firstOnly
		let cmd = cmd + [ "-o" ]
	endif

	let expanded = call(function("vimclojure#ExecuteNailWithInput"), cmd)

	let buf = g:vimclojure#ClojureResultBuffer.New()
	call buf.showOutput(expanded)
	wincmd p
endfunction

function! vimclojure#RequireFile(all)
	let ns = b:vimclojure_namespace
	let all = a:all ? "-all" : ""

	let require = "(require :reload" . all . " :verbose '". ns. ")"
	let result = vimclojure#ExecuteNailWithInput("Repl", require, "-r")

	let resultBuffer = g:vimclojure#ClojureResultBuffer.New()
	call resultBuffer.showOutput(result)
	wincmd p
endfunction

function! vimclojure#RunTests(all)
	let ns = b:vimclojure_namespace

	let result = call(function("vimclojure#ExecuteNailWithInput"),
				\ [ "RunTests", "", "-n", ns ] + (a:all ? [ "-a" ] : []))
	let resultBuffer = g:vimclojure#ClojureResultBuffer.New()
	call resultBuffer.showOutput(result)
	wincmd p
endfunction

function! vimclojure#EvalFile()
	let content = getbufline(bufnr("%"), 1, line("$"))
	let file = vimclojure#BufferName()
	let ns = b:vimclojure_namespace

	let result = vimclojure#ExecuteNailWithInput("Repl", content,
				\ "-r", "-n", ns, "-f", file)

	let resultBuffer = g:vimclojure#ClojureResultBuffer.New()
	call resultBuffer.showOutput(result)
	wincmd p
endfunction

function! vimclojure#EvalLine()
	let theLine = line(".")
	let content = getline(theLine)
	let file = vimclojure#BufferName()
	let ns = b:vimclojure_namespace

	let result = vimclojure#ExecuteNailWithInput("Repl", content,
				\ "-r", "-n", ns, "-f", file, "-l", theLine)

	let resultBuffer = g:vimclojure#ClojureResultBuffer.New()
	call resultBuffer.showOutput(result)
	wincmd p
endfunction

function! vimclojure#EvalBlock() range
	let file = vimclojure#BufferName()
	let ns = b:vimclojure_namespace

	let content = getbufline(bufnr("%"), a:firstline, a:lastline)
	let result = vimclojure#ExecuteNailWithInput("Repl", content,
				\ "-r", "-n", ns, "-f", file, "-l", a:firstline - 1)

	let resultBuffer = g:vimclojure#ClojureResultBuffer.New()
	call resultBuffer.showOutput(result)
	wincmd p
endfunction

function! vimclojure#EvalToplevel()
	let file = vimclojure#BufferName()
	let ns = b:vimclojure_namespace

	let pos = searchpairpos('(', '', ')', 'bWnr',
					\ 'vimclojure#SynIdName() !~ "clojureParen\\d"')

	if pos == [0, 0]
		throw "Error: Not in toplevel expression!"
	endif

	let expr = vimclojure#ExtractSexpr(1)
	let result = vimclojure#ExecuteNailWithInput("Repl", expr,
				\ "-r", "-n", ns, "-f", file, "-l", pos[0] - 1)

	let resultBuffer = g:vimclojure#ClojureResultBuffer.New()
	call resultBuffer.showOutput(result)
	wincmd p
endfunction

function! vimclojure#EvalParagraph()
	let file = vimclojure#BufferName()
	let ns = b:vimclojure_namespace
	let startPosition = line(".")

	let closure = {}

	function! closure.f() dict
		normal! }
		return line(".")
	endfunction

	let endPosition = vimclojure#WithSavedPosition(closure)

	let content = getbufline(bufnr("%"), startPosition, endPosition)
	let result = vimclojure#ExecuteNailWithInput("Repl", content,
				\ "-r", "-n", ns, "-f", file, "-l", startPosition - 1)

	let resultBuffer = g:vimclojure#ClojureResultBuffer.New()
	call resultBuffer.showOutput(result)
	wincmd p
endfunction

" The Repl
let vimclojure#Repl = copy(vimclojure#Buffer)
let vimclojure#Repl.__superBufferInit = vimclojure#Repl.Init

let vimclojure#Repl._history = []
let vimclojure#Repl._historyDepth = 0
let vimclojure#Repl._replCommands = [ ",close", ",st", ",ct", ",toggle-pprint" ]

" Simple wrapper to allow on demand load of autoload/vimclojure.vim.
function! vimclojure#StartRepl(...)
	let ns = a:0 > 0 ? a:1 : "user"
	call g:vimclojure#Repl.New(ns)
endfunction

function! vimclojure#Repl.New(namespace) dict
	let instance = copy(self)

	call g:vimclojure#Buffer.MakeBuffer()
	call self.Init(instance, a:namespace)

	return instance
endfunction

function! vimclojure#Repl.Init(instance, namespace) dict
	call self.__superBufferInit(a:instance)

	let a:instance._prompt = a:namespace . "=>"

	setlocal buftype=nofile
	setlocal noswapfile

	call append(line("$"), ["Clojure", a:instance._prompt . " "])

	let replStart = vimclojure#ExecuteNail("Repl", "-s",
				\ "-n", a:namespace)
	let a:instance._id = replStart.value.id
	call vimclojure#ExecuteNailWithInput("Repl",
				\ "(require 'clojure.stacktrace)",
				\ "-r", "-i", a:instance._id)

	let b:vimclojure_repl = a:instance

	set filetype=clojure

	if !hasmapto("<Plug>ClojureReplEnterHook")
		imap <buffer> <silent> <CR> <Plug>ClojureReplEnterHook
	endif
	if !hasmapto("<Plug>ClojureReplUpHistory")
		imap <buffer> <silent> <C-Up> <Plug>ClojureReplUpHistory
	endif
	if !hasmapto("<Plug>ClojureReplDownHistory")
		imap <buffer> <silent> <C-Down> <Plug>ClojureReplDownHistory
	endif

	normal! G
	startinsert!
endfunction

function! vimclojure#Repl.isReplCommand(cmd) dict
	for candidate in self._replCommands
		if candidate == a:cmd
			return 1
		endif
	endfor
	return 0
endfunction

function! vimclojure#Repl.doReplCommand(cmd) dict
	if a:cmd == ",close"
		call vimclojure#ExecuteNail("Repl", "-S", "-i", self._id)
		call self.close()
		stopinsert
	elseif a:cmd == ",st"
		let result = vimclojure#ExecuteNailWithInput("Repl",
					\ "(vimclojure.util/pretty-print-stacktrace *e)", "-r",
					\ "-i", self._id)
		call self.showOutput(result)
		call self.showPrompt()
	elseif a:cmd == ",ct"
		let result = vimclojure#ExecuteNailWithInput("Repl",
					\ "(vimclojure.util/pretty-print-causetrace *e)", "-r",
					\ "-i", self._id)
		call self.showOutput(result)
		call self.showPrompt()
	elseif a:cmd == ",toggle-pprint"
		let result = vimclojure#ExecuteNailWithInput("Repl",
					\ "(set! vimclojure.repl/*print-pretty* (not vimclojure.repl/*print-pretty*))", "-r",
					\ "-i", self._id)
		call self.showOutput(result)
		call self.showPrompt()
	endif
endfunction

function! vimclojure#Repl.showPrompt() dict
	call self.showText(self._prompt . " ")
	normal! G
	startinsert!
endfunction

function! vimclojure#Repl.getCommand() dict
	let ln = line("$")

	while getline(ln) !~ "^" . self._prompt && ln > 0
		let ln = ln - 1
	endwhile

	" Special Case: User deleted Prompt by accident. Insert a new one.
	if ln == 0
		call self.showPrompt()
		return ""
	endif

	let cmd = vimclojure#Yank("l", ln . "," . line("$") . "yank l")

	let cmd = substitute(cmd, "^" . self._prompt . "\\s*", "", "")
	let cmd = substitute(cmd, "\n$", "", "")
	return cmd
endfunction

function! vimclojure#Repl.enterHook() dict
	let cmd = self.getCommand()

	" Special Case: Showed prompt (or user just hit enter).
	if cmd == ""
		return
	endif

	if self.isReplCommand(cmd)
		call self.doReplCommand(cmd)
		return
	endif

	let result = vimclojure#ExecuteNailWithInput("CheckSyntax", cmd,
				\ "-n", b:vimclojure_namespace)
	if result.value == 0 && result.stderr == ""
		execute "normal! GA\<CR>x"
		normal! ==x
		startinsert!
	elseif result.stderr != ""
		let buf = g:vimclojure#ResultBuffer.New()
		call buf.showOutput(result)
	else
		let result = vimclojure#ExecuteNailWithInput("Repl", cmd,
					\ "-r", "-i", self._id)
		call self.showOutput(result)

		let self._historyDepth = 0
		let self._history = [cmd] + self._history

		let namespace = vimclojure#ExecuteNailWithInput("ReplNamespace", "",
					\ "-i", self._id)
		let b:vimclojure_namespace = namespace.value
		let self._prompt = namespace.value . "=>"

		call self.showPrompt()
	endif
endfunction

function! vimclojure#Repl.upHistory() dict
	let histLen = len(self._history)
	let histDepth = self._historyDepth

	if histLen > 0 && histLen > histDepth
		let cmd = self._history[histDepth]
		let self._historyDepth = histDepth + 1

		call self.deleteLast()

		call self.showText(self._prompt . " " . cmd)
	endif

	normal! G$
endfunction

function! vimclojure#Repl.downHistory() dict
	let histLen = len(self._history)
	let histDepth = self._historyDepth

	if histDepth > 0 && histLen > 0
		let self._historyDepth = histDepth - 1
		let cmd = self._history[self._historyDepth]

		call self.deleteLast()

		call self.showText(self._prompt . " " . cmd)
	elseif histDepth == 0
		call self.deleteLast()
		call self.showText(self._prompt . " ")
	endif

	normal! G$
endfunction

function! vimclojure#Repl.deleteLast() dict
	normal! G

	while getline("$") !~ self._prompt
		normal! dd
	endwhile

	normal! dd
endfunction

" Highlighting
function! vimclojure#ColorNamespace(highlights)
	for [category, words] in items(a:highlights)
		if words != []
			execute "syntax keyword clojure" . category . " " . join(words, " ")
		endif
	endfor
endfunction

" Omni Completion
function! vimclojure#OmniCompletion(findstart, base)
	if a:findstart == 1
		let line = getline(".")
		let start = col(".") - 1

		while start > 0 && line[start - 1] =~ '\w\|-\|\.\|+\|*\|/'
			let start -= 1
		endwhile

		return start
	else
		let slash = stridx(a:base, '/')
		if slash > -1
			let prefix = strpart(a:base, 0, slash)
			let base = strpart(a:base, slash + 1)
		else
			let prefix = ""
			let base = a:base
		endif

		if prefix == "" && base == ""
			return []
		endif

		let completions = vimclojure#ExecuteNail("Complete",
					\ "-n", b:vimclojure_namespace,
					\ "-p", prefix, "-b", base)
		return completions.value
	endif
endfunction

function! vimclojure#InitBuffer()
	if exists("b:vimclojure_loaded")
		return
	endif
	let b:vimclojure_loaded = 1

	if g:vimclojure#WantNailgun == 1
		if !exists("b:vimclojure_namespace")
			" Get the namespace of the buffer.
			if &previewwindow
				let b:vimclojure_namespace = "user"
			else
				try
					let content = getbufline(bufnr("%"), 1, line("$"))
					let namespace =
								\ vimclojure#ExecuteNailWithInput(
								\   "NamespaceOfFile", content)
					if namespace.stderr != ""
						throw namespace.stderr
					endif
					let b:vimclojure_namespace = namespace.value
				catch /.*/
					call vimclojure#ReportError(
								\ "Could not determine the Namespace of the file.\n\n"
								\ . "This might have different reasons. Please check, that the ng server\n"
								\ . "is running with the correct classpath and that the file does not contain\n"
								\ . "syntax errors. The interactive features will not be enabled, ie. the\n"
								\ . "keybindings will not be mapped.\n\nReason:\n" . v:exception)
				endtry
			endif
		endif
	endif
endfunction

function! vimclojure#AddToLispWords(word)
	execute "setlocal lw+=" . a:word
endfunction

" Epilog
let &cpo = s:save_cpo