Spell suggestions (#399)

* feat: spell suggest picker

* set correct window title

* add entry to readme

README.md

@@ -398,6 +398,7 @@ Built-in functions. Ready to be bound to any key you like. :smile:
 | `builtin.vim_options`               | Lists vim options and on enter edit the options value.                                      |
 | `builtin.registers`                 | Lists vim registers and edit or paste selection.                                            |
 | `builtin.autocommands`              | Lists vim autocommands and go to their declaration.                                         |
+| `builtin.spell_suggest`             | Lists spelling suggestions for <cword>.
 | `builtin.keymaps`                   | Lists normal-mode mappings.                                                                 |
 | `builtin.filetypes`                 | Lists all filetypes.                                                                        |
 | `builtin.highlights`                | Lists all highlights.                                                                       |

lua/telescope/builtin/init.lua

@@ -54,6 +54,7 @@ builtin.keymaps = require('telescope.builtin.internal').keymaps
 builtin.filetypes = require('telescope.builtin.internal').filetypes
 builtin.highlights = require('telescope.builtin.internal').highlights
 builtin.autocommands = require('telescope.builtin.internal').autocommands
+builtin.spell_suggest = require('telescope.builtin.internal').spell_suggest
 
 builtin.lsp_references = require('telescope.builtin.lsp').references
 builtin.lsp_document_symbols = require('telescope.builtin.lsp').document_symbols

lua/telescope/builtin/internal.lua

@@ -771,6 +771,29 @@ internal.autocommands = function(opts)
   }):find()
 end
 
+internal.spell_suggest = function(opts)
+  if not vim.wo.spell then return false end
+
+  local cursor_word = vim.fn.expand("<cword>")
+  local suggestions = vim.fn.spellsuggest(cursor_word)
+
+  pickers.new(opts, {
+    prompt_title = 'Spelling Suggestions',
+    finder = finders.new_table {
+      results = suggestions,
+    },
+    sorter = conf.generic_sorter(opts),
+    attach_mappings = function(prompt_bufnr)
+      actions.goto_file_selection_edit:replace(function()
+        local selection = actions.get_selected_entry()
+        actions.close(prompt_bufnr)
+        vim.cmd('normal! "_ciw"' .. selection[1])
+      end)
+      return true
+    end
+  }):find()
+end
+
 local function apply_checks(mod)
   for k, v in pairs(mod) do
     mod[k] = function(opts)