Add jumpable method

lua/neogen.lua

@@ -101,6 +101,10 @@ function neogen.jump_next()
     neogen.utilities.cursor.jump()
 end
 
+function neogen.jumpable()
+    return neogen.utilities.cursor.jumpable()
+end
+
 function neogen.generate_command()
     vim.api.nvim_command('command! -range -bar Neogen lua require("neogen").generate()')
 end

lua/neogen/utilities/cursor.lua

@@ -15,10 +15,12 @@ end
 neogen.utilities.cursor.go_next_extmark = function()
     local extm_list = vim.api.nvim_buf_get_extmarks(0, neogen_ns, 0, -1, {})
     if #extm_list ~= 0 then
-        vim.api.nvim_buf_del_extmark(0, neogen_ns, extm_list[1][1])
-    end
-    if #extm_list ~= 0 then
+
         vim.api.nvim_win_set_cursor(0, { extm_list[1][2] + 1, extm_list[1][3] })
+
+        if #extm_list ~= 0 then
+            vim.api.nvim_buf_del_extmark(0, neogen_ns, extm_list[1][1])
+        end
         return true
     else
         return false
@@ -39,3 +41,12 @@ neogen.utilities.cursor.del_extmarks = function()
         vim.api.nvim_buf_del_extmark(0, neogen_ns, v[1])
     end
 end
+
+neogen.utilities.cursor.jumpable = function ()
+    local extm_list = vim.api.nvim_buf_get_extmarks(0, neogen_ns, 0, -1, {})
+    if #extm_list ~= 0 then
+        return true
+    else
+        return false
+    end
+end