Add <plug> mappings (#210)

* Add <plug> mappings
* Update doc

Author: mattn

doc/vim-lsp.txt

@@ -32,7 +32,8 @@ CONTENTS                                                  *vim-lsp-contents*
       LspRename                   |LspRename|
       LspTypeDefinition           |LspTypeDefinition|
       LspWorkspaceSymbols         |LspWorkspaceSymbols|
-    Autocomplete               |vim-lsp-autocomplete|
+    Mappings			|vim-lsp-mappings|
+    Autocomplete		|vim-lsp-autocomplete|
       omnifunc                    |vim-lsp-omnifunc|
       asyncomplete.vim            |vim-lsp-asyncomplete|
     License			|vim-lsp-license|
@@ -352,6 +353,33 @@ LspStatus                                                        *LspStatus*
 
 Prints the status of all registered servers.
 
+===============================================================================
+Mappings	                                          *vim-lsp-mappings*
+
+To map keys to the feature of vim-lsp, use <plug> mappings:
+>
+  autocmd FileType python,go nmap gd <plug>(lsp-definition)
+<
+Available plug mappings are following:
+
+  (lsp-code-action)
+  (lsp-definition)
+  (lsp-document-symbol)
+  (lsp-document-diagnostics)
+  (lsp-hover)
+  (lsp-next-error)
+  (lsp-previous-error)
+  (lsp-references)
+  (lsp-rename)
+  (lsp-workspace-symbol)
+  (lsp-document-format)
+  (lsp-document-format)
+  (lsp-implementation)
+  (lsp-type-definition)
+  (lsp-status)
+
+See also *vim-lsp-commands*
+
 ===============================================================================
 Autocomplete                                          *vim-lsp-autocomplete*
 

plugin/lsp.vim

@@ -37,3 +37,19 @@ command! -range LspDocumentRangeFormat call lsp#ui#vim#document_range_format()
 command! LspImplementation call lsp#ui#vim#implementation()
 command! LspTypeDefinition call lsp#ui#vim#type_definition()
 command! -nargs=0 LspStatus echo lsp#get_server_status()
+
+nnoremap <expr> <plug>(lsp-code-action) [lsp#ui#vim#code_action(),''][1]
+nnoremap <expr> <plug>(lsp-definition) [lsp#ui#vim#definition(), ''][1]
+nnoremap <expr> <plug>(lsp-document-symbol) [lsp#ui#vim#document_symbol(),''][1]
+nnoremap <expr> <plug>(lsp-document-diagnostics) [lsp#ui#vim#diagnostics#document_diagnostics(),''][1]
+nnoremap <expr> <plug>(lsp-hover) [lsp#ui#vim#hover#get_hover_under_cursor(),''][1]
+nnoremap <expr> <plug>(lsp-next-error) [lsp#ui#vim#signs#next_error(),''][1]
+nnoremap <expr> <plug>(lsp-previous-error) [lsp#ui#vim#signs#previous_error(),''][1]
+nnoremap <expr> <plug>(lsp-references) [lsp#ui#vim#references(),''][1]
+nnoremap <expr> <plug>(lsp-rename) [lsp#ui#vim#rename(),''][1]
+nnoremap <expr> <plug>(lsp-workspace-symbol) [lsp#ui#vim#workspace_symbol(),''][1]
+nnoremap <expr> <plug>(lsp-document-format) [lsp#ui#vim#document_format(),''][1]
+vnoremap <expr> <plug>(lsp-document-format) [lsp#ui#vim#document_range_format(),''][1]
+nnoremap <expr> <plug>(lsp-implementation) [lsp#ui#vim#implementation(),''][1]
+nnoremap <expr> <plug>(lsp-type-definition) [lsp#ui#vim#type_definition(),''][1]
+nnoremap <expr> <plug>(lsp-status) [execute("echo lsp#get_server_status()",1),''][1]