fix(snippets): fix end selection when selection is exclusive

autoload/coc/snippet.vim

@@ -104,20 +104,29 @@ function! coc#snippet#disable()
   silent! execute 'sunmap <buffer> <silent> '.nextkey
 endfunction
 
-function! coc#snippet#select(position, text) abort
+function! coc#snippet#select(start, end, text) abort
   if pumvisible()
     call coc#_cancel()
   endif
   if mode() == 's'
     call feedkeys("\<Esc>", 'in')
   endif
-  let cursor = coc#snippet#to_cursor(a:position)
-  call cursor([cursor[0], cursor[1] - (&selection !~# 'exclusive')])
-  let len = strchars(a:text) - (&selection !~# 'exclusive')
-  let cmd = ''
-  let cmd .= mode()[0] ==# 'i' ? "\<Esc>l" : ''
-  let cmd .= printf('v%s', len > 0 ? len . 'h' : '')
-  let cmd .= "o\<C-g>"
+  if &selection ==# 'exclusive'
+    let cursor = coc#snippet#to_cursor(a:start)
+    call cursor([cursor[0], cursor[1]])
+    let cmd = ''
+    let cmd .= mode()[0] ==# 'i' ? "\<Esc>".(col('.') == 1 ? '' : 'l') : ''
+    let cmd .= printf('v%s', strchars(a:text) . 'l')
+    let cmd .= "\<C-g>"
+  else
+    let cursor = coc#snippet#to_cursor(a:end)
+    call cursor([cursor[0], cursor[1] - 1])
+    let len = strchars(a:text) - 1
+    let cmd = ''
+    let cmd .= mode()[0] ==# 'i' ? "\<Esc>l" : ''
+    let cmd .= printf('v%s', len > 0 ? len . 'h' : '')
+    let cmd .= "o\<C-g>"
+  endif
   call feedkeys(cmd, 'n')
 endfunction
 

src/snippets/session.ts

@@ -202,7 +202,7 @@ export class SnippetSession {
     let { range, value } = placeholder
     let { nvim } = this
     if (value.length > 0) {
-      await nvim.call('coc#snippet#select', [range.end, value])
+      await nvim.call('coc#snippet#select', [range.start, range.end, value])
     } else {
       await nvim.call('coc#snippet#move', [range.start])
     }