Use floating window for completion menus (#224)

* WIP

* WIP

* Fix #226

* Insert text

* Emulate vim native

* テキトウ

* Tekito

* Move scrollbar impl

* aaa

* Ignore unexpected event

* fix

* fix scroll

* Refactor (conflict...)

* Fix bug

* Positive integer

* Refactor a bit

* Fix for pumheight=0

* fx

* Improve matching highlight

* Improve colorscheme handling

* fmt

* Add cmp.visible

* Fix pum pos

* ABBR_MARGIN

* Fix cel calculation

* up

* refactor

* fix

* a

* a

* compat

* Remove current completion state

* Fix ghost text

* Add feature toggle

* highlight customization

* Update

* Add breaking change announcement

* Add README.md

* Remove unused function

* extmark ephemeral ghost text

* Support native comp

* Fix docs  pos

* a

* Remove if native menu visible

* theme async

* Improvement idea: option to disables insert on select item (#240)

* use ghost text instead of insertion on prev/next item

* add disables_insert_on_selection option

* move disable_insert_on_select option as argumet on

* update README

* use an enum behavior to disable insert on select

* Adopt contribution

* Preselect

* Improve

* Change configuration option

* a

* Improve

* Improve

* Implement proper <C-e> behavior to native/custom

* Support <C-c> maybe

* Improve docs view

* Improve

* Avoid syntax leak

* TODO: refactor

* Fix

* Revert win pos

* fmt

* ghost text remaining

* Don't use italic by default

* bottom

* dedup by label

* Ignore events

* up

* Hacky native view partial support

* up

* perf

* improve

* more cache

* fmt

* Fix format option

* fmt

* recheck

* Fix

* Improve

* Improve

* compat

* implement redraw

* improve

* up

* fmt/lint

* immediate ghost text

* source timeout

* up

* Support multibyte

* disable highlight

* up

* improve

* fmt

* fmt

* fix

* fix

* up

* up

* Use screenpos

* Add undojoin check

* Fix height

* matcher bug

* Fix dot-repeat

* Remove undojoin

* macro

* Support dot-repeat

* MacroSafe

* Default item count is 200

* fmt

Co-authored-by: Eric Puentes <eric.puentes@mercadolibre.com.co>

lua/cmp/utils/str.lua

@@ -15,6 +15,8 @@ INVALID_CHARS[string.byte('\t')] = true
 INVALID_CHARS[string.byte('\n')] = true
 INVALID_CHARS[string.byte('\r')] = true
 
+local NR_BYTE = string.byte('\n')
+
 local PAIR_CHARS = {}
 PAIR_CHARS[string.byte('[')] = string.byte(']')
 PAIR_CHARS[string.byte('(')] = string.byte(')')
@@ -72,24 +74,6 @@ str.strikethrough = function(text)
   return buffer
 end
 
----omit
----@param text string
----@param width number
----@return string
-str.omit = function(text, width)
-  if width == 0 then
-    return ''
-  end
-
-  if not text then
-    text = ''
-  end
-  if #text > width then
-    return string.sub(text, 1, width + 1) .. '...'
-  end
-  return text
-end
-
 ---trim
 ---@param text string
 ---@return string
@@ -136,21 +120,12 @@ str.get_word = function(text, stop_char)
   return text
 end
 
----Get character length.
----@param text string
----@param s number
----@param e number
----@return number
-str.chars = function(text, s, e)
-  return vim.fn.strchars(string.sub(text, s, e))
-end
-
 ---Oneline
 ---@param text string
 ---@return string
 str.oneline = function(text)
   for i = 1, #text do
-    if string.byte(text, i) == string.byte('\n', 1) then
+    if string.byte(text, i) == NR_BYTE then
       return string.sub(text, 1, i - 1)
     end
   end