155 lines
3.7 KiB
VimL
155 lines
3.7 KiB
VimL
" Copyright 2011 The Go Authors. All rights reserved.
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" Use of this source code is governed by a BSD-style
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" license that can be found in the LICENSE file.
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let s:buf_nr = -1
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if !exists("g:go_doc_command")
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let g:go_doc_command = "godoc"
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endif
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if !exists("g:go_doc_options")
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let g:go_doc_options = ""
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endif
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" returns the package and exported name. exported name might be empty.
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" ie: fmt and Println
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" ie: github.com/fatih/set and New
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function! s:godocWord(args)
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if !executable('godoc')
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let msg = "godoc command not found."
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let msg .= " install with: go get golang.org/x/tools/cmd/godoc"
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call go#util#EchoWarning(msg)
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return []
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endif
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if !len(a:args)
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let oldiskeyword = &iskeyword
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setlocal iskeyword+=.
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let word = expand('<cword>')
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let &iskeyword = oldiskeyword
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let word = substitute(word, '[^a-zA-Z0-9\\/._~-]', '', 'g')
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let words = split(word, '\.\ze[^./]\+$')
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else
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let words = a:args
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endif
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if !len(words)
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return []
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endif
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let pkg = words[0]
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if len(words) == 1
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let exported_name = ""
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else
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let exported_name = words[1]
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endif
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let packages = go#tool#Imports()
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if has_key(packages, pkg)
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let pkg = packages[pkg]
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endif
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return [pkg, exported_name]
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endfunction
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function! s:godocNotFound(content)
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if len(a:content) == 0
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return 1
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endif
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return a:content =~# '^.*: no such file or directory\n$'
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endfunction
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function! go#doc#OpenBrowser(...)
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let pkgs = s:godocWord(a:000)
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if empty(pkgs)
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return
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endif
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let pkg = pkgs[0]
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let exported_name = pkgs[1]
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" example url: https://godoc.org/github.com/fatih/set#Set
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let godoc_url = "https://godoc.org/" . pkg . "#" . exported_name
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call go#tool#OpenBrowser(godoc_url)
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endfunction
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function! go#doc#Open(newmode, mode, ...)
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if len(a:000)
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" check if we have 'godoc' and use it automatically
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let bin_path = go#path#CheckBinPath('godoc')
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if empty(bin_path)
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return
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endif
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let command = printf("%s %s", bin_path, join(a:000, ' '))
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else
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" check if we have 'gogetdoc' and use it automatically
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let bin_path = go#path#CheckBinPath('gogetdoc')
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if empty(bin_path)
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return
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endif
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let offset = go#util#OffsetCursor()
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let fname = expand("%:p:gs!\\!/!")
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let pos = shellescape(fname.':#'.offset)
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let command = printf("%s -pos %s", bin_path, pos)
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endif
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let out = go#util#System(command)
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if go#util#ShellError() != 0
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call go#util#EchoError(out)
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return
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endif
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call s:GodocView(a:newmode, a:mode, out)
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endfunction
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function! s:GodocView(newposition, position, content)
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" reuse existing buffer window if it exists otherwise create a new one
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if !bufexists(s:buf_nr)
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execute a:newposition
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sil file `="[Godoc]"`
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let s:buf_nr = bufnr('%')
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elseif bufwinnr(s:buf_nr) == -1
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execute a:position
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execute s:buf_nr . 'buffer'
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elseif bufwinnr(s:buf_nr) != bufwinnr('%')
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execute bufwinnr(s:buf_nr) . 'wincmd w'
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endif
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" cap buffer height to 20, but resize it for smaller contents
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let max_height = 20
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let content_height = len(split(a:content, "\n"))
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if content_height > max_height
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exe 'resize ' . max_height
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else
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exe 'resize ' . content_height
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endif
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setlocal filetype=godoc
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setlocal bufhidden=delete
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setlocal buftype=nofile
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setlocal noswapfile
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setlocal nobuflisted
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setlocal nocursorline
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setlocal nocursorcolumn
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setlocal iskeyword+=:
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setlocal iskeyword-=-
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setlocal modifiable
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%delete _
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call append(0, split(a:content, "\n"))
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sil $delete _
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setlocal nomodifiable
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sil normal! gg
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" close easily with <esc> or enter
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noremap <buffer> <silent> <CR> :<C-U>close<CR>
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noremap <buffer> <silent> <Esc> :<C-U>close<CR>
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endfunction
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" vim: sw=2 ts=2 et
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