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Added files for go language.

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1 parent 1d2826b commit 66feb902570b58f11944341b7d72d8a78d7a1939 @jgm committed May 5, 2011
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+au BufRead,BufNewFile *.go set filetype=go
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+" Copyright 2011 The Go Authors. All rights reserved.
+" Use of this source code is governed by a BSD-style
+" license that can be found in the LICENSE file.
+"
+" fmt.vim: Vim command to format Go files with gofmt.
+"
+" This filetype plugin add a new commands for go buffers:
+"
+" :Fmt
+"
+" Filter the current Go buffer through gofmt.
+" It tries to preserve cursor position and avoids
+" replacing the buffer with stderr output.
+"
+
+command! Fmt call s:GoFormat()
+
+function! s:GoFormat()
+ let view = winsaveview()
+ %!gofmt
+ if v:shell_error
+ %| " output errors returned by gofmt
+ " TODO(dchest): perhaps, errors should go to quickfix
+ undo
+ echohl Error | echomsg "Gofmt returned error" | echohl None
+ endif
+ call winrestview(view)
+endfunction
+
+" vim:ts=4:sw=4:et
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+" Copyright 2011 The Go Authors. All rights reserved.
+" Use of this source code is governed by a BSD-style
+" license that can be found in the LICENSE file.
+"
+" import.vim: Vim commands to import/drop Go packages.
+"
+" This filetype plugin adds three new commands for go buffers:
+"
+" :Import {path}
+"
+" Import ensures that the provided package {path} is imported
+" in the current Go buffer, using proper style and ordering.
+" If {path} is already being imported, an error will be
+" displayed and the buffer will be untouched.
+"
+" :ImportAs {localname} {path}
+"
+" Same as Import, but uses a custom local name for the package.
+"
+" :Drop {path}
+"
+" Remove the import line for the provided package {path}, if
+" present in the current Go buffer. If {path} is not being
+" imported, an error will be displayed and the buffer will be
+" untouched.
+"
+" In addition to these commands, there are also two shortcuts mapped:
+"
+" \f - Runs :Import fmt
+" \F - Runs :Drop fmt
+"
+" The backslash is the default maplocalleader, so it is possible that
+" your vim is set to use a different character (:help maplocalleader).
+"
+if exists("b:did_ftplugin")
+ finish
+endif
+
+command! -buffer -nargs=? Drop call s:SwitchImport(0, '', <f-args>)
+command! -buffer -nargs=1 Import call s:SwitchImport(1, '', <f-args>)
+command! -buffer -nargs=* ImportAs call s:SwitchImport(1, <f-args>)
+map <buffer> <LocalLeader>f :Import fmt<CR>
+map <buffer> <LocalLeader>F :Drop fmt<CR>
+
+function! s:SwitchImport(enabled, localname, path)
+ let view = winsaveview()
+ let path = a:path
+
+ " Quotes are not necessary, so remove them if provided.
+ if path[0] == '"'
+ let path = strpart(path, 1)
+ endif
+ if path[len(path)-1] == '"'
+ let path = strpart(path, 0, len(path) - 1)
+ endif
+ if path == ''
+ call s:Error('Import path not provided')
+ return
+ endif
+
+ let qpath = '"' . path . '"'
+ if a:localname != ''
+ let qlocalpath = a:localname . ' ' . qpath
+ else
+ let qlocalpath = qpath
+ endif
+ let indentstr = 0
+ let packageline = -1 " Position of package name statement
+ let appendline = -1 " Position to introduce new import
+ let deleteline = -1 " Position of line with existing import
+ let linesdelta = 0 " Lines added/removed
+
+ " Find proper place to add/remove import.
+ let line = 0
+ while line <= line('$')
+ let linestr = getline(line)
+
+ if linestr =~# '^package\s'
+ let packageline = line
+ let appendline = line
+
+ elseif linestr =~# '^import\s\+('
+ let appendstr = qlocalpath
+ let indentstr = 1
+ let appendline = line
+ while line <= line("$")
+ let line = line + 1
+ let linestr = getline(line)
+ let m = matchlist(getline(line), '^\()\|\(\s\+\)\(\S*\s*\)"\(.\+\)"\)')
+ if empty(m)
+ continue
+ endif
+ if m[1] == ')'
+ break
+ endif
+ if a:localname != '' && m[3] != ''
+ let qlocalpath = printf('%-' . (len(m[3])-1) . 's %s', a:localname, qpath)
+ endif
+ let appendstr = m[2] . qlocalpath
+ let indentstr = 0
+ if m[4] == path
+ let appendline = -1
+ let deleteline = line
+ break
+ elseif m[4] < path
+ let appendline = line
+ endif
+ endwhile
+ break
+
+ elseif linestr =~# '^import '
+ if appendline == packageline
+ let appendstr = 'import ' . qlocalpath
+ let appendline = line - 1
+ endif
+ let m = matchlist(linestr, '^import\(\s\+\)\(\S*\s*\)"\(.\+\)"')
+ if !empty(m)
+ if m[3] == path
+ let appendline = -1
+ let deleteline = line
+ break
+ endif
+ if m[3] < path
+ let appendline = line
+ endif
+ if a:localname != '' && m[2] != ''
+ let qlocalpath = printf("%s %" . len(m[2])-1 . "s", a:localname, qpath)
+ endif
+ let appendstr = 'import' . m[1] . qlocalpath
+ endif
+
+ elseif linestr =~# '^\(var\|const\|type\|func\)\>'
+ break
+
+ endif
+ let line = line + 1
+ endwhile
+
+ " Append or remove the package import, as requested.
+ if a:enabled
+ if deleteline != -1
+ call s:Error(qpath . ' already being imported')
+ elseif appendline == -1
+ call s:Error('No package line found')
+ else
+ if appendline == packageline
+ call append(appendline + 0, '')
+ call append(appendline + 1, 'import (')
+ call append(appendline + 2, ')')
+ let appendline += 2
+ let linesdelta += 3
+ let appendstr = qlocalpath
+ let indentstr = 1
+ endif
+ call append(appendline, appendstr)
+ execute appendline + 1
+ if indentstr
+ execute 'normal >>'
+ endif
+ let linesdelta += 1
+ endif
+ else
+ if deleteline == -1
+ call s:Error(qpath . ' not being imported')
+ else
+ execute deleteline . 'd'
+ let linesdelta -= 1
+
+ if getline(deleteline-1) =~# '^import\s\+(' && getline(deleteline) =~# '^)'
+ " Delete empty import block
+ let deleteline -= 1
+ execute deleteline . "d"
+ execute deleteline . "d"
+ let linesdelta -= 2
+ endif
+
+ if getline(deleteline) == '' && getline(deleteline - 1) == ''
+ " Delete spacing for removed line too.
+ execute deleteline . "d"
+ let linesdelta -= 1
+ endif
+ endif
+ endif
+
+ " Adjust view for any changes.
+ let view.lnum += linesdelta
+ let view.topline += linesdelta
+ if view.topline < 0
+ let view.topline = 0
+ endif
+
+ " Put buffer back where it was.
+ call winrestview(view)
+
+endfunction
+
+function! s:Error(s)
+ echohl Error | echo a:s | echohl None
+endfunction
+
+" vim:ts=4:sw=4:et
View
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+" Copyright 2011 The Go Authors. All rights reserved.
+" Use of this source code is governed by a BSD-style
+" license that can be found in the LICENSE file.
+"
+" indent/go.vim: Vim indent file for Go.
+"
+
+if exists("b:did_indent")
+ finish
+endif
+let b:did_indent = 1
+
+" C indentation is mostly correct
+setlocal cindent
+
+" Options set:
+" +0 -- Don't indent continuation lines (because Go doesn't use semicolons
+" much)
+" L0 -- Don't move jump labels (NOTE: this isn't correct when working with
+" gofmt, but it does keep struct literals properly indented.)
+" :0 -- Align case labels with switch statement
+" l1 -- Always align case body relative to case labels
+" J1 -- Indent JSON-style objects (properly indents struct-literals)
+" (0, Ws -- Indent lines inside of unclosed parentheses by one shiftwidth
+" m1 -- Align closing parenthesis line with first non-blank of matching
+" parenthesis line
+"
+" Known issue: Trying to do a multi-line struct literal in a short variable
+" declaration will not indent properly.
+setlocal cinoptions+=+0,L0,:0,l1,J1,(0,Ws,m1
View
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+Vim syntax highlighting for Go (http://golang.org)
+==================================================
+
+To install automatic syntax highlighting for GO programs:
+
+ 1. Copy or link the filetype detection script to the ftdetect directory
+ underneath your vim runtime directory (normally $HOME/.vim/ftdetect)
+ 2. Copy or link syntax/go.vim to the syntax directory underneath your vim
+ runtime directory (normally $HOME/.vim/syntax). Linking this file rather
+ than just copying it will ensure any changes are automatically reflected
+ in your syntax highlighting.
+ 3. Add the following line to your .vimrc file (normally $HOME/.vimrc):
+
+ syntax on
+
+In a typical unix environment you might accomplish this using the following
+commands:
+
+ mkdir -p $HOME/.vim/ftdetect
+ mkdir -p $HOME/.vim/syntax
+ ln -s $GOROOT/misc/vim/ftdetect/gofiletype.vim $HOME/.vim/ftdetect/
+ ln -s $GOROOT/misc/vim/syntax/go.vim $HOME/.vim/syntax
+ echo "syntax on" >> $HOME/.vimrc
+
+
+Vim filetype plugins for Go
+===========================
+
+To install one of the available filetype plugins for Go:
+
+ 1. Same as 1 above.
+ 2. Copy or link one or more plugins from ftplugin/go/*.vim to the
+ Go-specific ftplugin directory underneath your vim runtime directory
+ (normally $HOME/.vim/ftplugin/go/*.vim).
+ 3. Add the following line to your .vimrc file (normally $HOME/.vimrc):
+
+ filetype plugin on
+
+
+Vim indentation plugin for Go
+=============================
+
+To install automatic indentation for Go:
+
+ 1. Same as 1 above.
+ 2. Copy or link indent/go.vim to the indent directory underneath your vim
+ runtime directory (normally $HOME/.vim/indent).
+ 3. Add the following line to your .vimrc file (normally $HOME/.vimrc):
+
+ filetype indent on
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