feat: accept next word and next line completions. (#380)

* feat: accept next word and next line completions.

The process of inserting suggestions is always roughly the same, so
abstracted that into the `s:CompletionInserter` function.

With that, refactored `codeium#Accept` and introduced
`codeium#AcceptNextWord` and `codeium#AcceptNextLine`. Fixes #27

* feat: add default bindings for the new functions

* refactor(AcceptNextWord): handle when completionParts is undefined

autoload/codeium.vim

@@ -39,14 +39,14 @@ function! codeium#CompletionText() abort
   endtry
 endfunction
 
-function! codeium#Accept() abort
+function! s:CompletionInserter(current_completion, insert_text) abort
   let default = get(g:, 'codeium_tab_fallback', pumvisible() ? "\<C-N>" : "\t")
 
   if mode() !~# '^[iR]' || !exists('b:_codeium_completions')
     return default
   endif
 
-  let current_completion = s:GetCurrentCompletionItem()
+  let current_completion = a:current_completion
   if current_completion is v:null
     return default
   endif
@@ -58,7 +58,7 @@ function! codeium#Accept() abort
   let start_offset = get(range, 'startOffset', 0)
   let end_offset = get(range, 'endOffset', 0)
 
-  let text = current_completion.completion.text . suffix_text
+  let text = a:insert_text . suffix_text
   if empty(text)
     return default
   endif
@@ -87,6 +87,29 @@ function! codeium#Accept() abort
   return delete_range . insert_text . cursor_text
 endfunction
 
+function! codeium#Accept() abort
+  let current_completion = s:GetCurrentCompletionItem()
+  return s:CompletionInserter(current_completion, current_completion.completion.text) 
+endfunction
+
+function! codeium#AcceptNextWord() abort
+  let current_completion = s:GetCurrentCompletionItem()
+  let completion_parts = get(current_completion, 'completionParts', [])
+  if len(completion_parts) == 0
+    return ''
+  endif
+  let prefix_text = get(completion_parts[0], 'prefix', '')
+  let completion_text = get(completion_parts[0], 'text', '')
+  let next_word = matchstr(completion_text, '\v^\W*\k*')
+  return s:CompletionInserter(current_completion, prefix_text . next_word)
+endfunction
+
+function! codeium#AcceptNextLine() abort
+  let current_completion = s:GetCurrentCompletionItem()
+  let text = substitute(current_completion.completion.text, '\v\n.*$', '', '')
+  return s:CompletionInserter(current_completion, text)
+endfunction
+
 function! s:HandleCompletionsResult(out, err, status) abort
   if exists('b:_codeium_completions')
     let response_text = join(a:out, '')

plugin/codeium.vim

@@ -58,6 +58,12 @@ if !get(g:, 'codeium_disable_bindings')
   if empty(mapcheck('<M-Bslash>', 'i'))
     imap <M-Bslash> <Plug>(codeium-complete)
   endif
+  if empty(mapcheck('<C-Right>', 'i'))
+    imap <script><silent><nowait><expr> <C-Right> codeium#AcceptNextWord()
+  endif
+  if empty(mapcheck('<Right>', 'i'))
+    imap <script><silent><nowait><expr> <Right> codeium#AcceptNextLine()
+  endif
 endif
 
 call s:SetStyle()