From: Colin Patrick Mccabe <cmccabe@alumni.cmu.edu>
Date: Thu, 21 May 2015 22:35:49 +0000 (-0700)
Subject: add vim autocomplete stuff
X-Git-Url: http://club.cc.cmu.edu/~cmccabe/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0690197906a1e220375d05ab454d111cfbefc545;p=cmccabe-etc

add vim autocomplete stuff

Signed-off-by: Colin McCabe <cmccabe@alumni.cmu.edu>
---

diff --git a/.vim/autoload/gocomplete.vim b/.vim/autoload/gocomplete.vim
new file mode 100644
index 0000000..59f6868
--- /dev/null
+++ b/.vim/autoload/gocomplete.vim
@@ -0,0 +1,87 @@
+if exists('g:loaded_gocode')
+	finish
+endif
+let g:loaded_gocode = 1
+
+fu! s:gocodeCurrentBuffer()
+	let buf = getline(1, '$')
+	if &encoding != 'utf-8'
+		let buf = map(buf, 'iconv(v:val, &encoding, "utf-8")')
+	endif
+	if &l:fileformat == 'dos'
+		" XXX: line2byte() depend on 'fileformat' option.
+		" so if fileformat is 'dos', 'buf' must include '\r'.
+		let buf = map(buf, 'v:val."\r"')
+	endif
+	let file = tempname()
+	call writefile(buf, file)
+	return file
+endf
+
+let s:vim_system = get(g:, 'gocomplete#system_function', 'system')
+
+fu! s:system(str, ...)
+	return call(s:vim_system, [a:str] + a:000)
+endf
+
+fu! s:gocodeShellescape(arg)
+	try
+		let ssl_save = &shellslash
+		set noshellslash
+		return shellescape(a:arg)
+	finally
+		let &shellslash = ssl_save
+	endtry
+endf
+
+fu! s:gocodeCommand(cmd, preargs, args)
+	for i in range(0, len(a:args) - 1)
+		let a:args[i] = s:gocodeShellescape(a:args[i])
+	endfor
+	for i in range(0, len(a:preargs) - 1)
+		let a:preargs[i] = s:gocodeShellescape(a:preargs[i])
+	endfor
+	let result = s:system(printf('gocode %s %s %s', join(a:preargs), a:cmd, join(a:args)))
+	if v:shell_error != 0
+		return "[\"0\", []]"
+	else
+		if &encoding != 'utf-8'
+			let result = iconv(result, 'utf-8', &encoding)
+		endif
+		return result
+	endif
+endf
+
+fu! s:gocodeCurrentBufferOpt(filename)
+	return '-in=' . a:filename
+endf
+
+fu! s:gocodeCursor()
+	if &encoding != 'utf-8'
+		let c = col('.')
+		let buf = line('.') == 1 ? "" : (join(getline(1, line('.')-1), "\n") . "\n")
+		let buf .= c == 1 ? "" : getline('.')[:c-2]
+		return printf('%d', len(iconv(buf, &encoding, "utf-8")))
+	endif
+	return printf('%d', line2byte(line('.')) + (col('.')-2))
+endf
+
+fu! s:gocodeAutocomplete()
+	let filename = s:gocodeCurrentBuffer()
+	let result = s:gocodeCommand('autocomplete',
+				   \ [s:gocodeCurrentBufferOpt(filename), '-f=vim'],
+				   \ [expand('%:p'), s:gocodeCursor()])
+	call delete(filename)
+	return result
+endf
+
+fu! gocomplete#Complete(findstart, base)
+	"findstart = 1 when we need to get the text length
+	if a:findstart == 1
+		execute "silent let g:gocomplete_completions = " . s:gocodeAutocomplete()
+		return col('.') - g:gocomplete_completions[0] - 1
+	"findstart = 0 when we need to return the list of completions
+	else
+		return g:gocomplete_completions[1]
+	endif
+endf
diff --git a/.vim/plugin/gocomplete.vim b/.vim/plugin/gocomplete.vim
new file mode 100644
index 0000000..ffe2b48
--- /dev/null
+++ b/.vim/plugin/gocomplete.vim
@@ -0,0 +1 @@
+setlocal omnifunc=gocomplete#Complete