Merge branch 'master' into amiga2.1

* turn window_renderer into managed pointer
this will make it easier to move it into userdata in the future

* remove unused function, remove comment

.github/workflows/build.yml

@@ -110,6 +110,12 @@ jobs:
         run: |
           echo "$HOME/.local/bin" >> "$GITHUB_PATH"
           echo "INSTALL_NAME=lite-xl-${GITHUB_REF##*/}-macos-universal" >> "$GITHUB_ENV"
+      - name: Setup Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.9'
+      - name: Install dmgbuild
+        run: pip install dmgbuild
       - uses: actions/checkout@v3
       - name: Download artifacts
         uses: actions/download-artifact@v3
@@ -117,8 +123,6 @@ jobs:
         with:
           name: macOS DMG Images
           path: dmgs-original
-      - name: Install appdmg
-        run: cd ~; npm i appdmg; cd -
       - name: Make universal bundles
         run: |
           bash --version
@@ -200,13 +204,14 @@ jobs:
         run: |
           "INSTALL_NAME=lite-xl-$($env:GITHUB_REF -replace ".*/")-windows-msvc-${{ matrix.arch.name }}" >> $env:GITHUB_ENV
           "INSTALL_REF=$($env:GITHUB_REF -replace ".*/")" >> $env:GITHUB_ENV
-          "LUA_SUBPROJECT_PATH=subprojects/lua-5.4.4" >> $env:GITHUB_ENV
+          "LUA_SUBPROJECT_PATH=subprojects/$(awk -F ' *= *' '/directory/ { printf $2 }' subprojects/lua.wrap)" >> $env:GITHUB_ENV
+      - name: Download and patch subprojects
+        shell: bash
+        run: |
+          meson subprojects download
+          cat resources/windows/001-lua-unicode.diff | patch -Np1 -d "$LUA_SUBPROJECT_PATH"
       - name: Configure
         run: |
-          # Download the subprojects first so we can patch it before configuring.
-          # This avoids reconfiguring the subprojects when compiling.
-          meson subprojects download
-          Get-Content -Path resources/windows/001-lua-unicode.diff -Raw | patch -d $env:LUA_SUBPROJECT_PATH -p1 --forward
           meson setup --wrap-mode=forcefallback build
       - name: Build
         run: |

.github/workflows/release.yml

@@ -185,8 +185,8 @@ jobs:
         uses: actions/setup-python@v2
         with:
           python-version: 3.9
-      - name: Install appdmg
-        run: cd ~; npm i appdmg; cd -
+      - name: Install dmgbuild
+        run: pip install dmgbuild
       - name: Prepare DMG Images
         run: |
           mkdir -p dmgs-addons dmgs-normal

.gitignore

@@ -28,3 +28,4 @@ lite
 
 !resources/windows/*.diff
 !resources/windows/*.exe.manifest.in
+!resources/macos/*.py

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2020-2021 Lite XL Team
+Copyright (c) 2020-present Lite XL Team
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

README.md

@@ -1,7 +1,7 @@
 # Lite XL
 
 [![CI]](https://github.com/lite-xl/lite-xl/actions/workflows/build.yml)
-[![Discord Badge Image]](https://discord.gg/RWzqC3nx7K)
+[![Discord Badge Image]](https://discord.gg/UQKnzBhY5H)
 
 ![screenshot-dark]
 
@@ -81,6 +81,39 @@ affects only the place where the application is actually installed.
 
 Head over to [releases](https://github.com/lite-xl/lite-xl/releases) and download the version for your operating system.
 
+### Windows
+
+Lite XL comes with installers on Windows for typical installations.
+Alternatively, we provide ZIP archives that you can download and extract anywhere and run directly.
+
+To make Lite XL portable (e.g. running Lite XL from a thumb drive),
+simply create a `user` folder where `lite-xl.exe` is located.
+Lite XL will load and store all your configurations and plugins in the folder.
+
+### macOS
+
+We provide DMG files for macOS. Simply drag the program into your Applications folder.
+
+> **Important**
+> Newer versions of Lite XL are signed with a self-signed certificate,
+> so you'll have to follow these steps when running Lite XL for the first time.
+>
+> 1. Find Lite XL in Finder (do not open it in Launchpad).
+> 2. Control-click Lite XL, then choose `Open` from the shortcut menu.
+> 3. Click `Open` in the popup menu.
+>
+> The correct steps may vary between macOS versions, so you should refer to
+> the [macOS User Guide](https://support.apple.com/en-my/guide/mac-help/mh40616/mac).
+>
+> On an older version of Lite XL, you will need to run these commands instead:
+> 
+> ```sh
+> # clears attributes from the directory
+> xattr -cr /Applications/Lite\ XL.app
+> ```
+>
+> Otherwise, macOS will display a **very misleading error** saying that the application is damaged.
+
 ### Linux
 
 Unzip the file and `cd` into the `lite-xl` directory:
@@ -91,6 +124,7 @@ cd lite-xl
 ```
 
 To run lite-xl without installing:
+
 ```sh
 ./lite-xl
 ```
@@ -103,21 +137,59 @@ mkdir -p $HOME/.local/bin && cp lite-xl $HOME/.local/bin/
 mkdir -p $HOME/.local/share/lite-xl && cp -r data/* $HOME/.local/share/lite-xl/
 ```
 
+#### Add Lite XL to PATH
+
+To run Lite XL from the command line, you must add it to PATH.
+
 If `$HOME/.local/bin` is not in PATH:
 
 ```sh
 echo -e 'export PATH=$PATH:$HOME/.local/bin' >> $HOME/.bashrc
 ```
 
-To get the icon to show up in app launcher:
+Alternatively on recent versions of GNOME and KDE Plasma,
+you can add `$HOME/.local/bin` to PATH via `~/.config/environment.d/envvars.conf`:
+
+```ini
+PATH=$HOME/.local/bin:$PATH
+```
+
+> **Note**
+> Some systems might not load `.bashrc` when logging in.
+> This can cause problems with launching applications from the desktop / menu.
+
+#### Add Lite XL to application launchers
+
+To get the icon to show up in app launcher, you need to create a desktop
+entry and put it into `/usr/share/applications` or `~/.local/share/applications`.
+
+Here is an example for a desktop entry in `~/.local/share/applications/com.lite_xl.LiteXL.desktop`,
+assuming Lite XL is in PATH:
+
+```ini
+[Desktop Entry]
+Type=Application
+Name=Lite XL
+Comment=A lightweight text editor written in Lua
+Exec=lite-xl %F
+Icon=lite-xl
+Terminal=false
+StartupWMClass=lite-xl
+Categories=Development;IDE;
+MimeType=text/plain;inode/directory;
+```
+
+To get the icon to show up in app launcher immediately, run:
 
 ```sh
 xdg-desktop-menu forceupdate
 ```
 
-You may need to logout and login again to see icon in app launcher.
+Alternatively, you may log out and log in again.
 
-To uninstall just run:
+#### Uninstall
+
+To uninstall Lite XL, run:
 
 ```sh
 rm -f $HOME/.local/bin/lite-xl
@@ -127,7 +199,6 @@ rm -rf $HOME/.local/share/icons/hicolor/scalable/apps/lite-xl.svg \
           $HOME/.local/share/lite-xl
 ```
 
-
 ## Contributing
 
 Any additional functionality that can be added through a plugin should be done

build-packages.sh

@@ -38,7 +38,7 @@ show_help() {
   echo "-v --version VERSION          Sets the version on the package name."
   echo "-A --appimage                 Create an AppImage (Linux only)."
   echo "-D --dmg                      Create a DMG disk image (macOS only)."
-  echo "                              Requires NPM and AppDMG."
+  echo "                              Requires dmgbuild."
   echo "-I --innosetup                Create an InnoSetup installer (Windows only)."
   echo "-r --release                  Compile in release mode."
   echo "-S --source                   Create a source code package,"

data/core/commands/doc.lua

@@ -43,7 +43,7 @@ local function save(filename)
     core.log("Saved \"%s\"", saved_filename)
   else
     core.error(err)
-    core.nag_view:show("Saving failed", string.format("Could not save \"%s\" do you want to save to another location?", doc().filename), {
+    core.nag_view:show("Saving failed", string.format("Couldn't save file \"%s\". Do you want to save to another location?", doc().filename), {
       { text = "No", default_no = true },
       { text = "Yes", default_yes = true }
     }, function(item)
@@ -340,10 +340,11 @@ local commands = {
         local text = dv.doc:get_text(line1, 1, line1, col1)
         if #text >= indent_size and text:find("^ *$") then
           dv.doc:delete_to_cursor(idx, 0, -indent_size)
-          return
+          goto continue
         end
       end
       dv.doc:delete_to_cursor(idx, translate.previous_char)
+      ::continue::
     end
   end,
 
@@ -544,6 +545,11 @@ local commands = {
     dv.doc.crlf = not dv.doc.crlf
   end,
 
+  ["doc:toggle-overwrite"] = function(dv)
+    dv.doc.overwrite = not dv.doc.overwrite
+    core.blink_reset() -- to show the cursor has changed edit modes
+  end,
+
   ["doc:save-as"] = function(dv)
     local last_doc = core.last_active_view and core.last_active_view.doc
     local text

data/core/commands/findreplace.lua

@@ -164,13 +164,16 @@ local function is_in_any_selection(line, col)
 end
 
 local function select_add_next(all)
-  local il1, ic1 = doc():get_selection(true)
-  for idx, l1, c1, l2, c2 in doc():get_selections(true, true) do
+  local il1, ic1
+  for _, l1, c1, l2, c2 in doc():get_selections(true, true) do
+    if not il1 then
+      il1, ic1 = l1, c1
+    end
     local text = doc():get_text(l1, c1, l2, c2)
     repeat
       l1, c1, l2, c2 = search.find(doc(), l2, c2, text, { wrap = true })
       if l1 == il1 and c1 == ic1 then break end
-      if l2 and (all or not is_in_any_selection(l2, c2)) then
+      if l2 and not is_in_any_selection(l2, c2) then
         doc():add_selection(l2, c2, l1, c1)
         if not all then
           core.active_view:scroll_to_make_visible(l2, c2)
@@ -266,7 +269,7 @@ command.add(valid_for_finding, {
       core.error("No find to continue from")
     else
       local sl1, sc1, sl2, sc2 = dv.doc:get_selection(true)
-      local line1, col1, line2, col2 = last_fn(dv.doc, sl1, sc2, last_text, case_sensitive, find_regex, false)
+      local line1, col1, line2, col2 = last_fn(dv.doc, sl2, sc2, last_text, case_sensitive, find_regex, false)
       if line1 then
         dv.doc:set_selection(line2, col2, line1, col1)
         dv:scroll_to_line(line2, true)

data/core/common.lua

@@ -226,7 +226,7 @@ function common.path_suggest(text, root)
   if root and root:sub(-1) ~= PATHSEP then
     root = root .. PATHSEP
   end
-  local path, name = text:match("^(.-)([^:/\\]*)$")
+  local path, name = text:match("^(.-)([^"..PATHSEP.."]*)$")
   local clean_dotslash = false
   -- ignore root if path is absolute
   local is_absolute = common.is_absolute_path(text)
@@ -279,7 +279,7 @@ end
 ---@param text string The input path.
 ---@return string[]
 function common.dir_path_suggest(text)
-  local path, name = text:match("^(.-)([^:/\\]*)$")
+  local path, name = text:match("^(.-)([^"..PATHSEP.."]*)$")
   local files = system.list_dir(path == "" and "." or path) or {}
   local res = {}
   for _, file in ipairs(files) do
@@ -298,7 +298,7 @@ end
 ---@param dir_list string[] A list of paths to filter.
 ---@return string[]
 function common.dir_list_suggest(text, dir_list)
-  local path, name = text:match("^(.-)([^:/\\]*)$")
+  local path, name = text:match("^(.-)([^"..PATHSEP.."]*)$")
   local res = {}
   for _, dir_path in ipairs(dir_list) do
     if dir_path:lower():find(text:lower(), nil, true) == 1 then
@@ -378,12 +378,15 @@ function common.bench(name, fn, ...)
   return res
 end
 
+-- From gvx/Ser
+local oddvals = {[tostring(1/0)] = "1/0", [tostring(-1/0)] = "-1/0", [tostring(-(0/0))] = "-(0/0)", [tostring(0/0)] = "0/0"}
 
 local function serialize(val, pretty, indent_str, escape, sort, limit, level)
   local space = pretty and " " or ""
   local indent = pretty and string.rep(indent_str, level) or ""
   local newline = pretty and "\n" or ""
-  if type(val) == "string" then
+  local ty = type(val)
+  if ty == "string" then
     local out = string.format("%q", val)
     if escape then
       out = string.gsub(out, "\\\n", "\\n")
@@ -395,7 +398,7 @@ local function serialize(val, pretty, indent_str, escape, sort, limit, level)
       out = string.gsub(out, "\\13", "\\r")
     end
     return out
-  elseif type(val) == "table" then
+  elseif ty == "table" then
     -- early exit
     if level >= limit then return tostring(val) end
     local next_indent = pretty and (indent .. indent_str) or ""
@@ -410,6 +413,12 @@ local function serialize(val, pretty, indent_str, escape, sort, limit, level)
     if sort then table.sort(t) end
     return "{" .. newline .. table.concat(t, "," .. newline) .. newline .. indent .. "}"
   end
+  if ty == "number" then
+    -- tostring is locale-dependent, so we need to replace an eventual `,` with `.`
+    local res, _ = tostring(val):gsub(",", ".")
+    -- handle inf/nan
+    return oddvals[res] or res
+  end
   return tostring(val)
 end
 
@@ -452,7 +461,7 @@ end
 function common.basename(path)
   -- a path should never end by / or \ except if it is '/' (unix root) or
   -- 'X:\' (windows drive)
-  return path:match("[^\\/]+$") or path
+  return path:match("[^"..PATHSEP.."]+$") or path
 end
 
 
@@ -461,7 +470,7 @@ end
 ---@param path string
 ---@return string|nil
 function common.dirname(path)
-  return path:match("(.+)[:\\/][^\\/]+$")
+  return path:match("(.+)["..PATHSEP.."][^"..PATHSEP.."]+$")
 end
 
 
@@ -507,10 +516,10 @@ end
 
 local function split_on_slash(s, sep_pattern)
   local t = {}
-  if s:match("^[/\\]") then
+  if s:match("^["..PATHSEP.."]") then
     t[#t + 1] = ""
   end
-  for fragment in string.gmatch(s, "([^/\\]+)") do
+  for fragment in string.gmatch(s, "([^"..PATHSEP.."]+)") do
     t[#t + 1] = fragment
   end
   return t
@@ -643,7 +652,7 @@ function common.mkdirp(path)
   while path and path ~= "" do
     local success_mkdir = system.mkdir(path)
     if success_mkdir then break end
-    local updir, basedir = path:match("(.*)[/\\](.+)$")
+    local updir, basedir = path:match("(.*)["..PATHSEP.."](.+)$")
     table.insert(subdirs, 1, basedir or path)
     path = updir
   end

data/core/config.lua

@@ -2,15 +2,71 @@ local common = require "core.common"
 
 local config = {}
 
+---The frame rate of Lite XL.
+---Note that setting this value to the screen's refresh rate
+---does not eliminate screen tearing.
+---
+---Defaults to 60.
+---@type number
 config.fps = 60
+
+---Maximum number of log items that will be stored.
+---When the number of log items exceed this value, old items will be discarded.
+---
+---Defaults to 800.
+---@type number
 config.max_log_items = 800
+
+---The timeout, in seconds, before a message dissapears from StatusView.
+---
+---Defaults to 5.
+---@type number
 config.message_timeout = 5
+
+---The number of pixels scrolled per-step.
+---
+---Defaults to 50 * SCALE.
+---@type number
 config.mouse_wheel_scroll = 50 * SCALE
+
+---Enables/disables transitions when scrolling with the scrollbar.
+---When enabled, the scrollbar will have inertia and slowly move towards the cursor.
+---Otherwise, the scrollbar will immediately follow the cursor.
+---
+---Defaults to false.
+---@type boolean
 config.animate_drag_scroll = false
+
+---Enables/disables scrolling past the end of a document.
+---
+---Defaults to true.
+---@type boolean
 config.scroll_past_end = true
----@type "expanded" | "contracted" | false @Force the scrollbar status of the DocView
+
+---@alias config.scrollbartype
+---| "expanded" # A thicker scrollbar is shown at all times.
+---| "contracted" # A thinner scrollbar is shown at all times.
+---| false # The scrollbar expands when the cursor hovers over it.
+
+---Controls whether the DocView scrollbar is always shown or hidden.
+---This option does not affect other View's scrollbars.
+---
+---Defaults to false.
+---@type config.scrollbartype
 config.force_scrollbar_status = false
+
+---The file size limit, in megabytes.
+---Files larger than this size will not be shown in the file picker.
+---
+---Defaults to 10.
+---@type number
 config.file_size_limit = 10
+
+---A list of files and directories to ignore.
+---Each element is a Lua pattern, where patterns ending with a forward slash
+---are recognized as directories while patterns ending with an anchor ("$") are
+---recognized as files.
+---@type string[]
 config.ignore_files = {
   -- folders
   "^%.svn/",        "^%.git/",   "^%.hg/",        "^CVS/", "^%.Trash/", "^%.Trash%-.*/",
@@ -21,46 +77,194 @@ config.ignore_files = {
   "%.suo$",         "%.pdb$",       "%.idb$",        "%.class$", "%.psd$", "%.db$",
   "^desktop%.ini$", "^%.DS_Store$", "^%.directory$",
 }
+
+---Lua pattern used to find symbols when advanced syntax highlighting
+---is not available.
+---This pattern is also used for navigation, e.g. move to next word.
+---
+---The default pattern matches all letters, followed by any number
+---of letters and digits.
+---@type string
 config.symbol_pattern = "[%a_][%w_]*"
+
+---A list of characters that delimits a word.
+---
+---The default is ``" \t\n/\\()\"':,.;<>~!@#$%^&*|+=[]{}`?-"``
+---@type string
 config.non_word_chars = " \t\n/\\()\"':,.;<>~!@#$%^&*|+=[]{}`?-"
+
+---The timeout, in seconds, before several consecutive actions
+---are merged as a single undo step.
+---
+---The default is 0.3 seconds.
+---@type number
 config.undo_merge_timeout = 0.3
+
+---The maximum number of undo steps per-document.
+---
+---The default is 10000.
+---@type number
 config.max_undos = 10000
+
+---The maximum number of tabs shown at a time.
+---
+---The default is 8.
+---@type number
 config.max_tabs = 8
+
+---Shows/hides the tab bar when there is only one tab open.
+---
+---The tab bar is always shown by default.
+---@type boolean
 config.always_show_tabs = true
--- Possible values: false, true, "no_selection"
+
+---@alias config.highlightlinetype
+---| true # Always highlight the current line.
+---| false # Never highlight the current line.
+---| "no_selection" # Highlight the current line if no text is selected.
+
+---Highlights the current line.
+---
+---The default is true.
+---@type config.highlightlinetype
 config.highlight_current_line = true
+
+---The spacing between each line of text.
+---
+---The default is 120% of the height of the text (1.2).
+---@type number
 config.line_height = 1.2
+
+---The number of spaces each level of indentation represents.
+---
+---The default is 2.
+---@type number
 config.indent_size = 2
+
+---The type of indentation.
+---
+---The default is "soft" (spaces).
+---@type "soft" | "hard"
 config.tab_type = "soft"
+
+---Do not remove whitespaces when advancing to the next line.
+---
+---Defaults to false.
+---@type boolean
 config.keep_newline_whitespace = false
+
+---Default line endings for new files.
+---
+---Defaults to `crlf` (`\r\n`) on Windows and `lf` (`\n`) on everything else.
+---@type "crlf" | "lf"
+config.line_endings = PLATFORM == "Windows" and "crlf" or "lf"
+
+---Maximum number of characters per-line for the line guide.
+---
+---Defaults to 80.
+---@type number
 config.line_limit = 80
+
+---Maximum number of project files to keep track of.
+---If the number of files in the project exceeds this number,
+---Lite XL will not be able to keep track of them.
+---They will be not be searched when searching for files or text.
+---
+---Defaults to 2000.
+---@type number
 config.max_project_files = 2000
+
+---Enables/disables all transitions.
+---
+---Defaults to true.
+---@type boolean
 config.transitions = true
+
+---Enable/disable individual transitions.
+---These values are overriden by `config.transitions`.
 config.disabled_transitions = {
+  ---Disables scrolling transitions.
   scroll = false,
+  ---Disables transitions for CommandView's suggestions list.
   commandview = false,
+  ---Disables transitions for showing/hiding the context menu.
   contextmenu = false,
+  ---Disables transitions when clicking on log items in LogView.
   logview = false,
+  ---Disables transitions for showing/hiding the Nagbar.
   nagbar = false,
+  ---Disables transitions when scrolling the tab bar.
   tabs = false,
+  ---Disables transitions when a tab is being dragged.
   tab_drag = false,
+  ---Disables transitions when a notification is shown.
   statusbar = false,
 }
+
+---The rate of all transitions.
+---
+---Defaults to 1.
+---@type number
 config.animation_rate = 1.0
+
+---The caret's blinking period, in seconds.
+---
+---Defaults to 0.8.
+---@type number
 config.blink_period = 0.8
+
+---Disables caret blinking.
+---
+---Defaults to false.
+---@type boolean
 config.disable_blink = false
+
+---Draws whitespaces as dots.
+---This option is deprecated.
+---Please use the drawwhitespace plugin instead.
+---@deprecated
 config.draw_whitespace = false
+
+---Disables system-drawn window borders.
+---
+---When set to true, Lite XL draws its own window decorations,
+---which can be useful for certain setups.
+---
+---Defaults to false.
+---@type boolean
 config.borderless = false
+
+---Shows/hides the close buttons on tabs.
+---When hidden, users can close tabs via keyboard shortcuts or commands.
+---
+---Defaults to true.
+---@type boolean
 config.tab_close_button = true
+
+---Maximum number of clicks recognized by Lite XL.
+---
+---Defaults to 3.
+---@type number
 config.max_clicks = 3
 
--- set as true to be able to test non supported plugins
+---Disables plugin version checking.
+---Do not change this unless you know what you are doing.
+---
+---Defaults to false.
+---@type boolean
 config.skip_plugins_version = false
 
 -- holds the plugins real config table
 local plugins_config = {}
 
--- virtual representation of plugins config table
+---A table containing configuration for all the plugins.
+---
+---This is a metatable that automaticaly creates a minimal
+---configuration when a plugin is initially configured.
+---Each plugins will then call `common.merge()` to get the finalized
+---plugin config.
+---Do not use raw operations on this table.
+---@type table
 config.plugins = {}
 
 -- allows virtual access to the plugins config table

data/core/contextmenu.lua

@@ -12,11 +12,31 @@ local divider_width = 1
 local divider_padding = 5
 local DIVIDER = {}
 
+---An item in the context menu.
+---@class core.contextmenu.item
+---@field text string
+---@field info string|nil If provided, this text is displayed on the right side of the menu.
+---@field command string|fun()
+
+---A list of items with the same predicate.
+---@see core.command.predicate
+---@class core.contextmenu.itemset
+---@field predicate core.command.predicate
+---@field items core.contextmenu.item[]
+
+---A context menu.
 ---@class core.contextmenu : core.object
+---@field itemset core.contextmenu.itemset[]
+---@field show_context_menu boolean
+---@field selected number
+---@field position core.view.position
+---@field current_scale number
 local ContextMenu = Object:extend()
 
+---A unique value representing the divider in a context menu.
 ContextMenu.DIVIDER = DIVIDER
 
+---Creates a new context menu.
 function ContextMenu:new()
   self.itemset = {}
   self.show_context_menu = false
@@ -55,12 +75,19 @@ local function update_items_size(items, update_binding)
   items.width, items.height = width, height
 end
 
+---Registers a list of items into the context menu with a predicate.
+---@param predicate core.command.predicate
+---@param items core.contextmenu.item[]
 function ContextMenu:register(predicate, items)
   predicate = command.generate_predicate(predicate)
   update_items_size(items, true)
   table.insert(self.itemset, { predicate = predicate, items = items })
 end
 
+---Shows the context menu.
+---@param x number
+---@param y number
+---@return boolean # If true, the context menu is shown.
 function ContextMenu:show(x, y)
   self.items = nil
   local items_list = { width = 0, height = 0 }
@@ -94,6 +121,7 @@ function ContextMenu:show(x, y)
   return false
 end
 
+---Hides the context menu.
 function ContextMenu:hide()
   self.show_context_menu = false
   self.items = nil
@@ -102,6 +130,8 @@ function ContextMenu:hide()
   core.request_cursor(core.active_view.cursor)
 end
 
+---Returns an iterator that iterates over each context menu item and their dimensions.
+---@return fun(): number, core.contextmenu.item, number, number, number, number
 function ContextMenu:each_item()
   local x, y, w = self.position.x, self.position.y, self.items.width
   local oy = y
@@ -115,8 +145,12 @@ function ContextMenu:each_item()
   end)
 end
 
+---Event handler for mouse movements.
+---@param px any
+---@param py any
+---@return boolean # true if the event is caught.
 function ContextMenu:on_mouse_moved(px, py)
-  if not self.show_context_menu then return end
+  if not self.show_context_menu then return false end
 
   self.selected = -1
   for i, item, x, y, w, h in self:each_item() do
@@ -128,6 +162,8 @@ function ContextMenu:on_mouse_moved(px, py)
   return true
 end
 
+---Event handler for when the selection is confirmed.
+---@param item core.contextmenu.item
 function ContextMenu:on_selected(item)
   if type(item.command) == "string" then
     command.perform(item.command)
@@ -140,6 +176,7 @@ local function change_value(value, change)
   return value + change
 end
 
+---Selects the the previous item.
 function ContextMenu:focus_previous()
   self.selected = (self.selected == -1 or self.selected == 1) and #self.items or change_value(self.selected, -1)
   if self:get_item_selected() == DIVIDER then
@@ -147,6 +184,7 @@ function ContextMenu:focus_previous()
   end
 end
 
+---Selects the next item.
 function ContextMenu:focus_next()
   self.selected = (self.selected == -1 or self.selected == #self.items) and 1 or change_value(self.selected, 1)
   if self:get_item_selected() == DIVIDER then
@@ -154,10 +192,13 @@ function ContextMenu:focus_next()
   end
 end
 
+---Gets the currently selected item.
+---@return core.contextmenu.item|nil
 function ContextMenu:get_item_selected()
   return (self.items or {})[self.selected]
 end
 
+---Hides the context menu and performs the command if an item is selected.
 function ContextMenu:call_selected_item()
     local selected = self:get_item_selected()
     self:hide()
@@ -166,6 +207,12 @@ function ContextMenu:call_selected_item()
     end
 end
 
+---Event handler for mouse press.
+---@param button core.view.mousebutton
+---@param px number
+---@param py number
+---@param clicks number
+---@return boolean # true if the event is caught.
 function ContextMenu:on_mouse_pressed(button, px, py, clicks)
   local caught = false
 
@@ -186,14 +233,20 @@ function ContextMenu:on_mouse_pressed(button, px, py, clicks)
   return caught
 end
 
+---@type fun(self: table, k: string, dest: number, rate?: number, name?: string)
 ContextMenu.move_towards = View.move_towards
 
+---Event handler for content update.
 function ContextMenu:update()
   if self.show_context_menu then
     self:move_towards("height", self.items.height, nil, "contextmenu")
   end
 end
 
+---Draws the context menu.
+---
+---This wraps `ContextMenu:draw_context_menu()`.
+---@see core.contextmenu.draw_context_menu
 function ContextMenu:draw()
   if not self.show_context_menu then return end
   if self.current_scale ~= SCALE then
@@ -206,6 +259,7 @@ function ContextMenu:draw()
   core.root_view:defer_draw(self.draw_context_menu, self)
 end
 
+---Draws the context menu.
 function ContextMenu:draw_context_menu()
   if not self.items then return end
   local bx, by, bw, bh = self.position.x, self.position.y, self.items.width, self.height

data/core/dirwatch.lua

@@ -91,6 +91,7 @@ end
 -- designed to be run inside a coroutine.
 function dirwatch:check(change_callback, scan_time, wait_time)
   local had_change = false
+  local last_error
   self.monitor:check(function(id)
     had_change = true
     if self.monitor:mode() == "single" then
@@ -102,7 +103,10 @@ function dirwatch:check(change_callback, scan_time, wait_time)
     elseif self.reverse_watched[id] then
       change_callback(self.reverse_watched[id])
     end
+  end, function(err)
+    last_error = err
   end)
+  if last_error ~= nil then error(last_error) end
   local start_time = system.get_time()
   for directory, old_modified in pairs(self.scanned) do
     if old_modified then
@@ -186,47 +190,45 @@ end
 -- "root" will by an absolute path without trailing '/'
 -- "path" will be a path starting without '/' and without trailing '/'
 --    or the empty string.
---    It will identifies a sub-path within "root.
+--    It identifies a sub-path within "root".
 -- The current path location will therefore always be: root .. path.
--- When recursing "root" will always be the same, only "path" will change.
+-- When recursing, "root" will always be the same, only "path" will change.
 -- Returns a list of file "items". In each item the "filename" will be the
 -- complete file path relative to "root" *without* the trailing '/', and without the starting '/'.
-function dirwatch.get_directory_files(dir, root, path, t, entries_count, recurse_pred)
+function dirwatch.get_directory_files(dir, root, path, entries_count, recurse_pred)
+  local t = {}
   local t0 = system.get_time()
-  local t_elapsed = system.get_time() - t0
-  local dirs, files = {}, {}
   local ignore_compiled = compile_ignore_files()
 
-
   local all = system.list_dir(root .. PATHSEP .. path)
   if not all then return nil end
-
-  for _, file in ipairs(all or {}) do
+  local entries = { }
+  for _, file in ipairs(all) do
     local info = get_project_file_info(root, (path ~= "" and (path .. PATHSEP) or "") .. file, ignore_compiled)
     if info then
-      table.insert(info.type == "dir" and dirs or files, info)
-      entries_count = entries_count + 1
+      table.insert(entries, info)
     end
   end
+  table.sort(entries, compare_file)
 
   local recurse_complete = true
-  table.sort(dirs, compare_file)
-  for _, f in ipairs(dirs) do
-    table.insert(t, f)
-    if recurse_pred(dir, f.filename, entries_count, t_elapsed) then
-      local _, complete, n = dirwatch.get_directory_files(dir, root, f.filename, t, entries_count, recurse_pred)
+  for _, info in ipairs(entries) do
+    table.insert(t, info)
+    entries_count = entries_count + 1
+    if info.type == "dir" then
+      if recurse_pred(dir, info.filename, entries_count, system.get_time() - t0) then
+        local t_rec, complete, n = dirwatch.get_directory_files(dir, root, info.filename, entries_count, recurse_pred)
         recurse_complete = recurse_complete and complete
         if n ~= nil then
           entries_count = n
+          for _, info_rec in ipairs(t_rec) do
+            table.insert(t, info_rec)
+          end
         end
       else
         recurse_complete = false
       end
     end
-
-  table.sort(files, compare_file)
-  for _, f in ipairs(files) do
-    table.insert(t, f)
   end
 
   return t, recurse_complete, entries_count

data/core/doc/init.lua

@@ -1,5 +1,6 @@
 local Object = require "core.object"
 local Highlighter = require "core.doc.highlighter"
+local translate = require "core.doc.translate"
 local core = require "core"
 local syntax = require "core.syntax"
 local config = require "core.config"
@@ -27,9 +28,11 @@ function Doc:new(filename, abs_filename, new_file)
       self:load(filename)
     end
   end
+  if new_file then
+    self.crlf = config.line_endings == "crlf"
+  end
 end
 
-
 function Doc:reset()
   self.lines = { "\n" }
   self.selections = { 1, 1, 1, 1 }
@@ -38,10 +41,10 @@ function Doc:reset()
   self.redo_stack = { idx = 1 }
   self.clean_change_id = 1
   self.highlighter = Highlighter(self)
+  self.overwrite = false
   self:reset_syntax()
 end
 
-
 function Doc:reset_syntax()
   local header = self:get_text(1, 1, self:position_offset(1, 1, 128))
   local path = self.abs_filename
@@ -56,16 +59,14 @@ function Doc:reset_syntax()
   end
 end
 
-
 function Doc:set_filename(filename, abs_filename)
   self.filename = filename
   self.abs_filename = abs_filename
   self:reset_syntax()
 end
 
-
 function Doc:load(filename)
-  local fp = assert( io.open(filename, "rb") )
+  local fp = assert(io.open(filename, "rb"))
   self:reset()
   self.lines = {}
   local i = 1
@@ -85,7 +86,6 @@ function Doc:load(filename)
   self:reset_syntax()
 end
 
-
 function Doc:reload()
   if self.filename then
     local sel = { self:get_selection() }
@@ -95,7 +95,6 @@ function Doc:reload()
   end
 end
 
-
 function Doc:save(filename, abs_filename)
   if not filename then
     assert(self.filename, "no filename set to default to")
@@ -104,7 +103,7 @@ function Doc:save(filename, abs_filename)
   else
     assert(self.filename or abs_filename, "calling save on unnamed doc without absolute path")
   end
-  local fp = assert( io.open(filename, "wb") )
+  local fp = assert(io.open(filename, "wb"))
   for _, line in ipairs(self.lines) do
     if self.crlf then line = line:gsub("\n", "\r\n") end
     fp:write(line)
@@ -115,26 +114,23 @@ function Doc:save(filename, abs_filename)
   self:clean()
 end
 
-
 function Doc:get_name()
   return self.filename or "unsaved"
 end
 
-
 function Doc:is_dirty()
   if self.new_file then
+    if self.filename then return true end
     return #self.lines > 1 or #self.lines[1] > 1
   else
     return self.clean_change_id ~= self:get_change_id()
   end
 end
 
-
 function Doc:clean()
   self.clean_change_id = self:get_change_id()
 end
 
-
 function Doc:get_indent_info()
   if not self.indent_info then return config.tab_type, config.indent_size, false end
   return self.indent_info.type or config.tab_type,
@@ -142,7 +138,6 @@ function Doc:get_indent_info()
       self.indent_info.confirmed
 end
 
-
 function Doc:get_change_id()
   return self.undo_stack.idx
 end
@@ -166,13 +161,14 @@ function Doc:get_selection(sort)
   return line1, col1, line2, col2, swap
 end
 
-
 ---Get the selection specified by `idx`
 ---@param idx integer @the index of the selection to retrieve
 ---@param sort? boolean @whether to sort the selection returned
 ---@return integer,integer,integer,integer,boolean? @line1, col1, line2, col2, was the selection sorted
 function Doc:get_selection_idx(idx, sort)
-  local line1, col1, line2, col2 = self.selections[idx*4-3], self.selections[idx*4-2], self.selections[idx*4-1], self.selections[idx*4]
+  local line1, col1, line2, col2 = self.selections[idx * 4 - 3], self.selections[idx * 4 - 2],
+      self.selections[idx * 4 - 1],
+      self.selections[idx * 4]
   if line1 and sort then
     return sort_positions(line1, col1, line2, col2)
   else
@@ -216,7 +212,7 @@ function Doc:set_selections(idx, line1, col1, line2, col2, swap, rm)
   if swap then line1, col1, line2, col2 = line2, col2, line1, col1 end
   line1, col1 = self:sanitize_position(line1, col1)
   line2, col2 = self:sanitize_position(line2 or line1, col2 or col1)
-  common.splice(self.selections, (idx - 1)*4 + 1, rm == nil and 4 or rm, { line1, col1, line2, col2 })
+  common.splice(self.selections, (idx - 1) * 4 + 1, rm == nil and 4 or rm, { line1, col1, line2, col2 })
 end
 
 function Doc:add_selection(line1, col1, line2, col2, swap)
@@ -232,7 +228,6 @@ function Doc:add_selection(line1, col1, line2, col2, swap)
   self.last_selection = target
 end
 
-
 function Doc:remove_selection(idx)
   if self.last_selection >= idx then
     self.last_selection = self.last_selection - 1
@@ -240,7 +235,6 @@ function Doc:remove_selection(idx)
   common.splice(self.selections, (idx - 1) * 4 + 1, 4)
 end
 
-
 function Doc:set_selection(line1, col1, line2, col2, swap)
   self.selections = {}
   self:set_selections(1, line1, col1, line2, col2, swap)
@@ -251,9 +245,9 @@ function Doc:merge_cursors(idx)
   for i = (idx or (#self.selections - 3)), (idx or 5), -4 do
     for j = 1, i - 4, 4 do
       if self.selections[i] == self.selections[j] and
-        self.selections[i+1] == self.selections[j+1] then
+          self.selections[i + 1] == self.selections[j + 1] then
         common.splice(self.selections, i, 4)
-          if self.last_selection >= (i+3)/4 then
+        if self.last_selection >= (i + 3) / 4 then
           self.last_selection = self.last_selection - 1
         end
         break
@@ -263,12 +257,12 @@ function Doc:merge_cursors(idx)
 end
 
 local function selection_iterator(invariant, idx)
-  local target = invariant[3] and (idx*4 - 7) or (idx*4 + 1)
+  local target = invariant[3] and (idx * 4 - 7) or (idx * 4 + 1)
   if target > #invariant[1] or target <= 0 or (type(invariant[3]) == "number" and invariant[3] ~= idx - 1) then return end
   if invariant[2] then
-    return idx+(invariant[3] and -1 or 1), sort_positions(table.unpack(invariant[1], target, target+4))
+    return idx + (invariant[3] and -1 or 1), sort_positions(table.unpack(invariant[1], target, target + 4))
   else
-    return idx+(invariant[3] and -1 or 1), table.unpack(invariant[1], target, target+4)
+    return idx + (invariant[3] and -1 or 1), table.unpack(invariant[1], target, target + 4)
   end
 end
 
@@ -276,8 +270,9 @@ end
 -- If a number, runs for exactly that iteration.
 function Doc:get_selections(sort_intra, idx_reverse)
   return selection_iterator, { self.selections, sort_intra, idx_reverse },
-    idx_reverse == true and ((#self.selections / 4) + 1) or ((idx_reverse or -1)+1)
+      idx_reverse == true and ((#self.selections / 4) + 1) or ((idx_reverse or -1) + 1)
 end
+
 -- End of cursor seciton.
 
 function Doc:sanitize_position(line, col)
@@ -290,7 +285,6 @@ function Doc:sanitize_position(line, col)
   return line, common.clamp(col, 1, #self.lines[line])
 end
 
-
 local function position_offset_func(self, line, col, fn, ...)
   line, col = self:sanitize_position(line, col)
   return fn(self, line, col, ...)
@@ -329,7 +323,6 @@ function Doc:position_offset(line, col, ...)
   end
 end
 
-
 function Doc:get_text(line1, col1, line2, col2)
   line1, col1 = self:sanitize_position(line1, col1)
   line2, col2 = self:sanitize_position(line2, col2)
@@ -345,13 +338,11 @@ function Doc:get_text(line1, col1, line2, col2)
   return table.concat(lines)
 end
 
-
 function Doc:get_char(line, col)
   line, col = self:sanitize_position(line, col)
   return self.lines[line]:sub(col, col)
 end
 
-
 local function push_undo(undo_stack, time, type, ...)
   undo_stack[undo_stack.idx] = { type = type, time = time, ... }
   undo_stack[undo_stack.idx - config.max_undos] = nil
@@ -412,7 +403,8 @@ function Doc:raw_insert(line, col, text, undo_stack, time)
     if cline1 < line then break end
     local line_addition = (line < cline1 or col < ccol1) and #lines - 1 or 0
     local column_addition = line == cline1 and ccol1 > col and len or 0
-    self:set_selections(idx, cline1 + line_addition, ccol1 + column_addition, cline2 + line_addition, ccol2 + column_addition)
+    self:set_selections(idx, cline1 + line_addition, ccol1 + column_addition, cline2 + line_addition,
+      ccol2 + column_addition)
   end
 
   -- push undo
@@ -425,7 +417,6 @@ function Doc:raw_insert(line, col, text, undo_stack, time)
   self:sanitize_selection()
 end
 
-
 function Doc:raw_remove(line1, col1, line2, col2, undo_stack, time)
   -- push undo
   local text = self:get_text(line1, col1, line2, col2)
@@ -484,15 +475,17 @@ function Doc:raw_remove(line1, col1, line2, col2, undo_stack, time)
   self:sanitize_selection()
 end
 
-
 function Doc:insert(line, col, text)
   self.redo_stack = { idx = 1 }
+  -- Reset the clean id when we're pushing something new before it
+  if self:get_change_id() < self.clean_change_id then
+    self.clean_change_id = -1
+  end
   line, col = self:sanitize_position(line, col)
   self:raw_insert(line, col, text, self.undo_stack, system.get_time())
   self:on_text_change("insert")
 end
 
-
 function Doc:remove(line1, col1, line2, col2)
   self.redo_stack = { idx = 1 }
   line1, col1 = self:sanitize_position(line1, col1)
@@ -502,28 +495,34 @@ function Doc:remove(line1, col1, line2, col2)
   self:on_text_change("remove")
 end
 
-
 function Doc:undo()
   pop_undo(self, self.undo_stack, self.redo_stack, false)
 end
 
-
 function Doc:redo()
   pop_undo(self, self.redo_stack, self.undo_stack, false)
 end
 
-
 function Doc:text_input(text, idx)
   for sidx, line1, col1, line2, col2 in self:get_selections(true, idx or true) do
+    local had_selection = false
     if line1 ~= line2 or col1 ~= col2 then
       self:delete_to_cursor(sidx)
+      had_selection = true
     end
+
+    if self.overwrite
+    and not had_selection
+    and col1 < #self.lines[line1]
+    and text:ulen() == 1 then
+      self:remove(line1, col1, translate.next_char(self, line1, col1))
+    end
+
     self:insert(line1, col1, text)
     self:move_to_cursor(sidx, #text)
   end
 end
 
-
 function Doc:ime_text_editing(text, start, length, idx)
   for sidx, line1, col1, line2, col2 in self:get_selections(true, idx or true) do
     if line1 ~= line2 or col1 ~= col2 then
@@ -534,7 +533,6 @@ function Doc:ime_text_editing(text, start, length, idx)
   end
 end
 
-
 function Doc:replace_cursor(idx, line1, col1, line2, col2, fn)
   local old_text = self:get_text(line1, col1, line2, col2)
   local new_text, res = fn(old_text)
@@ -550,7 +548,7 @@ function Doc:replace_cursor(idx, line1, col1, line2, col2, fn)
 end
 
 function Doc:replace(fn)
-  local has_selection, results = false, { }
+  local has_selection, results = false, {}
   for idx, line1, col1, line2, col2 in self:get_selections(true) do
     if line1 ~= line2 or col1 ~= col2 then
       results[idx] = self:replace_cursor(idx, line1, col1, line2, col2, fn)
@@ -564,7 +562,6 @@ function Doc:replace(fn)
   return results
 end
 
-
 function Doc:delete_to_cursor(idx, ...)
   for sidx, line1, col1, line2, col2 in self:get_selections(true, idx) do
     if line1 ~= line2 or col1 ~= col2 then
@@ -578,6 +575,7 @@ function Doc:delete_to_cursor(idx, ...)
   end
   self:merge_cursors(idx)
 end
+
 function Doc:delete_to(...) return self:delete_to_cursor(nil, ...) end
 
 function Doc:move_to_cursor(idx, ...)
@@ -586,8 +584,8 @@ function Doc:move_to_cursor(idx, ...)
   end
   self:merge_cursors(idx)
 end
-function Doc:move_to(...) return self:move_to_cursor(nil, ...) end
 
+function Doc:move_to(...) return self:move_to_cursor(nil, ...) end
 
 function Doc:select_to_cursor(idx, ...)
   for sidx, line, col, line2, col2 in self:get_selections(false, idx) do
@@ -596,8 +594,8 @@ function Doc:select_to_cursor(idx, ...)
   end
   self:merge_cursors(idx)
 end
-function Doc:select_to(...) return self:select_to_cursor(nil, ...) end
 
+function Doc:select_to(...) return self:select_to_cursor(nil, ...) end
 
 function Doc:get_indent_string()
   local indent_type, indent_size = self:get_indent_info()
@@ -620,7 +618,7 @@ function Doc:get_line_indent(line, rnd_up)
     local indent = e and line:sub(1, e):gsub("\t", soft_tab) or ""
     local number = #indent / #soft_tab
     return e, indent:sub(1,
-      (rnd_up and math.ceil(number) or math.floor(number))*#soft_tab)
+      (rnd_up and math.ceil(number) or math.floor(number)) * #soft_tab)
   end
 end
 
@@ -669,5 +667,4 @@ function Doc:on_close()
   core.log_quiet("Closed doc \"%s\"", self:get_name())
 end
 
-
 return Doc

data/core/doc/search.lua

@@ -66,7 +66,18 @@ function search.find(doc, line, col, text, opt)
       s, e = search_func(line_text, pattern, col, plain)
     end
     if s then
-      return line, s, line, e + 1
+      local line2 = line
+      -- If we've matched the newline too,
+      -- return until the initial character of the next line.
+      if e >= #doc.lines[line] then
+        line2 = line + 1
+        e = 0
+      end
+      -- Avoid returning matches that go beyond the last line.
+      -- This is needed to avoid selecting the "last" newline.
+      if line2 <= #doc.lines then
+        return line, s, line2, e + 1
+      end
     end
     col = opt.reverse and -1 or 1
   end

data/core/docview.lua

@@ -460,6 +460,13 @@ function DocView:draw_line_text(line, x, y)
   return self:get_line_height()
 end
 
+
+function DocView:draw_overwrite_caret(x, y, width)
+  local lh = self:get_line_height()
+  renderer.draw_rect(x, y + lh - style.caret_width, width, style.caret_width, style.caret)
+end
+
+
 function DocView:draw_caret(x, y)
   local lh = self:get_line_height()
   renderer.draw_rect(x, y, style.caret_width, lh, style.caret)
@@ -559,7 +566,12 @@ function DocView:draw_overlay()
         else
           if config.disable_blink
           or (core.blink_timer - core.blink_start) % T < T / 2 then
-            self:draw_caret(self:get_line_screen_position(line1, col1))
+            local x, y = self:get_line_screen_position(line1, col1)
+            if self.doc.overwrite then
+              self:draw_overwrite_caret(x, y, self:get_font():get_width(self.doc:get_char(line1, col1)))
+            else
+              self:draw_caret(x, y)
+            end
           end
         end
       end

data/core/init.lua

@@ -102,7 +102,7 @@ local function strip_leading_path(filename)
 end
 
 local function strip_trailing_slash(filename)
-  if filename:match("[^:][/\\]$") then
+  if filename:match("[^:]["..PATHSEP.."]$") then
     return filename:sub(1, -2)
   end
   return filename
@@ -120,9 +120,7 @@ local function show_max_files_warning(dir)
     "Too many files in project directory: stopped reading at "..
     config.max_project_files.." files. For more information see "..
     "usage.md at https://github.com/lite-xl/lite-xl."
-  if core.status_view then
-    core.status_view:show_message("!", style.accent, message)
-  end
+  core.warn(message)
 end
 
 
@@ -184,7 +182,7 @@ local function refresh_directory(topdir, target)
     directory_start_idx = directory_start_idx + 1
   end
 
-  local files = dirwatch.get_directory_files(topdir, topdir.name, (target or ""), {}, 0, function() return false end)
+  local files = dirwatch.get_directory_files(topdir, topdir.name, (target or ""), 0, function() return false end)
   local change = false
 
   -- If this file doesn't exist, we should be calling this on our parent directory, assume we'll do that.
@@ -265,7 +263,7 @@ function core.add_project_directory(path)
 
   local fstype = PLATFORM == "Linux" and system.get_fs_type(topdir.name) or "unknown"
   topdir.force_scans = (fstype == "nfs" or fstype == "fuse")
-  local t, complete, entries_count = dirwatch.get_directory_files(topdir, topdir.name, "", {}, 0, timed_max_files_pred)
+  local t, complete, entries_count = dirwatch.get_directory_files(topdir, topdir.name, "", 0, timed_max_files_pred)
   topdir.files = t
   if not complete then
     topdir.slow_filesystem = not complete and (entries_count <= config.max_project_files)
@@ -810,7 +808,11 @@ function core.init()
   end
 
   if not plugins_success or got_user_error or got_project_error then
+    -- defer LogView to after everything is initialized,
+    -- so that EmptyView won't be added after LogView.
+    core.add_thread(function()
       command.perform("core:open-log")
+    end)
   end
 
   core.configure_borderless_window()
@@ -1274,6 +1276,9 @@ function core.on_event(type, ...)
   elseif type == "textediting" then
     ime.on_text_editing(...)
   elseif type == "keypressed" then
+    -- In some cases during IME composition input is still sent to us
+    -- so we just ignore it.
+    if ime.editing then return false end
     did_keymap = keymap.on_key_pressed(...)
   elseif type == "keyreleased" then
     keymap.on_key_released(...)
@@ -1418,11 +1423,11 @@ local run_threads = coroutine.wrap(function()
 
       -- stop running threads if we're about to hit the end of frame
       if system.get_time() - core.frame_start > max_time then
-        coroutine.yield(0)
+        coroutine.yield(0, false)
       end
     end
 
-    coroutine.yield(minimal_time_to_wake)
+    coroutine.yield(minimal_time_to_wake, true)
   end
 end)
 
@@ -1430,10 +1435,15 @@ end)
 function core.run()
   local next_step
   local last_frame_time
+  local run_threads_full = 0
   while true do
     core.frame_start = system.get_time()
-    local time_to_wake = run_threads()
+    local time_to_wake, threads_done = run_threads()
+    if threads_done then
+      run_threads_full = run_threads_full + 1
+    end
     local did_redraw = false
+    local did_step = false
     local force_draw = core.redraw and last_frame_time and core.frame_start - last_frame_time > (1 / config.fps)
     if force_draw or not next_step or system.get_time() >= next_step then
       if core.step() then
@@ -1441,11 +1451,12 @@ function core.run()
         last_frame_time = core.frame_start
       end
       next_step = nil
+      did_step = true
     end
     if core.restart_request or core.quit_request then break end
 
     if not did_redraw then
-      if system.window_has_focus() then
+      if system.window_has_focus() or not did_step or run_threads_full < 2 then
         local now = system.get_time()
         if not next_step then -- compute the time until the next blink
           local t = now - core.blink_start
@@ -1454,7 +1465,7 @@ function core.run()
           local cursor_time_to_wake = dt + 1 / config.fps
           next_step = now + cursor_time_to_wake
         end
-        if time_to_wake > 0 and system.wait_event(math.min(next_step - now, time_to_wake)) then
+        if system.wait_event(math.min(next_step - now, time_to_wake)) then
           next_step = nil -- if we've recevied an event, perform a step
         end
       else
@@ -1462,6 +1473,7 @@ function core.run()
         next_step = nil -- perform a step when we're not in focus if get we an event
       end
     else -- if we redrew, then make sure we only draw at most FPS/sec
+      run_threads_full = 0
       local now = system.get_time()
       local elapsed = now - core.frame_start
       local next_frame = math.max(0, 1 / config.fps - elapsed)

data/core/keymap.lua

@@ -42,15 +42,19 @@ local modkeys = modkeys_os.keys
 ---@return string
 local function normalize_stroke(stroke)
   local stroke_table = {}
-  for modkey in stroke:gmatch("(%w+)%+") do
-    table.insert(stroke_table, modkey)
+  for key in stroke:gmatch("[^+]+") do
+    table.insert(stroke_table, key)
   end
-  if not next(stroke_table) then
-    return stroke
+  table.sort(stroke_table, function(a, b)
+    if a == b then return false end
+    for _, mod in ipairs(modkeys) do
+      if a == mod or b == mod then
+        return a == mod
       end
-  table.sort(stroke_table)
-  local new_stroke = table.concat(stroke_table, "+") .. "+"
-  return new_stroke .. stroke:sub(new_stroke:len() + 1)
+    end
+    return a < b
+  end)
+  return table.concat(stroke_table, "+")
 end
 
 
@@ -58,13 +62,13 @@ end
 ---@param key string
 ---@return string
 local function key_to_stroke(key)
-  local stroke = ""
+  local keys = { key }
   for _, mk in ipairs(modkeys) do
     if keymap.modkeys[mk] then
-      stroke = stroke .. mk .. "+"
+      table.insert(keys, mk)
     end
   end
-  return normalize_stroke(stroke) .. key
+  return normalize_stroke(table.concat(keys, "+"))
 end
 
 ---Remove the given value from an array associated to a key in a table.
@@ -92,12 +96,12 @@ end
 ---@param map keymap.map
 local function remove_duplicates(map)
   for stroke, commands in pairs(map) do
-    stroke = normalize_stroke(stroke)
+    local normalized_stroke = normalize_stroke(stroke)
     if type(commands) == "string" or type(commands) == "function" then
       commands = { commands }
     end
-    if keymap.map[stroke] then
-      for _, registered_cmd in ipairs(keymap.map[stroke]) do
+    if keymap.map[normalized_stroke] then
+      for _, registered_cmd in ipairs(keymap.map[normalized_stroke]) do
         local j = 0
         for i=1, #commands do
           while commands[i + j] == registered_cmd do
@@ -120,7 +124,6 @@ end
 function keymap.add_direct(map)
   for stroke, commands in pairs(map) do
     stroke = normalize_stroke(stroke)
-  
     if type(commands) == "string" or type(commands) == "function" then
       commands = { commands }
     end
@@ -174,7 +177,8 @@ end
 ---@param shortcut string
 ---@param cmd string
 function keymap.unbind(shortcut, cmd)
-  remove_only(keymap.map, normalize_stroke(shortcut), cmd)
+  shortcut = normalize_stroke(shortcut)
+  remove_only(keymap.map, shortcut, cmd)
   remove_only(keymap.reverse_map, cmd, shortcut)
 end
 
@@ -199,10 +203,6 @@ end
 -- Events listening
 --------------------------------------------------------------------------------
 function keymap.on_key_pressed(k, ...)
-  -- In MacOS and Windows during IME composition input is still sent to us
-  -- so we just ignore it
-  if PLATFORM ~= "Linux" and ime.editing then return false end
-
   local mk = modkey_map[k]
   if mk then
     keymap.modkeys[mk] = true
@@ -341,6 +341,7 @@ keymap.add_direct {
   ["ctrl+x"] = "doc:cut",
   ["ctrl+c"] = "doc:copy",
   ["ctrl+v"] = "doc:paste",
+  ["insert"] = "doc:toggle-overwrite",
   ["ctrl+insert"] = "doc:copy",
   ["shift+insert"] = "doc:paste",
   ["escape"] = { "command:escape", "doc:select-none", "dialog:select-no" },

data/core/modkeys-generic.lua

@@ -7,8 +7,12 @@ modkeys.map = {
   ["right shift"] = "shift",
   ["left alt"]    = "alt",
   ["right alt"]   = "altgr",
+  ["left gui"]    = "super",
+  ["left windows"] = "super",
+  ["right gui"]   = "super",
+  ["right windows"] = "super"
 }
 
-modkeys.keys = { "ctrl", "alt", "altgr", "shift" }
+modkeys.keys = { "ctrl", "shift", "alt", "altgr", "super" }
 
 return modkeys

data/core/modkeys-macos.lua

@@ -13,6 +13,6 @@ modkeys.map = {
   ["right alt"]      = "altgr",
 }
 
-modkeys.keys = { "cmd", "ctrl", "alt", "option", "altgr", "shift" }
+modkeys.keys = { "ctrl", "alt", "option", "altgr", "shift", "cmd" }
 
 return modkeys

data/core/nagview.lua

@@ -24,6 +24,7 @@ function NagView:new()
   self.scrollable = true
   self.target_height = 0
   self.on_mouse_pressed_root = nil
+  self.dim_alpha = 0
 end
 
 function NagView:get_title()
@@ -68,7 +69,9 @@ function NagView:dim_window_content()
   oy = oy + self.show_height
   local w, h = core.root_view.size.x, core.root_view.size.y - oy
   core.root_view:defer_draw(function()
-    renderer.draw_rect(ox, oy, w, h, style.nagbar_dim)
+    local dim_color = { table.unpack(style.nagbar_dim) }
+    dim_color[4] = style.nagbar_dim[4] * self.dim_alpha
+    renderer.draw_rect(ox, oy, w, h, dim_color)
   end)
 end
 
@@ -172,10 +175,13 @@ function NagView:update()
   NagView.super.update(self)
 
   if self.visible and core.active_view == self and self.title then
-    self:move_towards(self, "show_height", self:get_target_height(), nil, "nagbar")
+    local target_height = self:get_target_height()
+    self:move_towards(self, "show_height", target_height, nil, "nagbar")
     self:move_towards(self, "underline_progress", 1, nil, "nagbar")
+    self:move_towards(self, "dim_alpha", self.show_height / target_height, nil, "nagbar")
   else
     self:move_towards(self, "show_height", 0, nil, "nagbar")
+    self:move_towards(self, "dim_alpha", 0, nil, "nagbar")
     if self.show_height <= 0 then
       self.title = nil
       self.message = nil

data/core/node.lua

@@ -177,8 +177,12 @@ function Node:add_view(view, idx)
   assert(not self.locked, "Tried to add view to locked node")
   if self.views[1] and self.views[1]:is(EmptyView) then
     table.remove(self.views)
+    if idx and idx > 1 then
+      idx = idx - 1
     end
-  table.insert(self.views, idx or (#self.views + 1), view)
+  end
+  idx = common.clamp(idx or (#self.views + 1), 1, (#self.views + 1))
+  table.insert(self.views, idx, view)
   self:set_active_view(view)
 end
 

data/core/rootview.lua

@@ -313,10 +313,10 @@ function RootView:on_mouse_moved(x, y, dx, dy)
   if self.dragged_divider then
     local node = self.dragged_divider
     if node.type == "hsplit" then
-      x = common.clamp(x, 0, self.root_node.size.x * 0.95)
+      x = common.clamp(x - node.position.x, 0, self.root_node.size.x * 0.95)
       resize_child_node(node, "x", x, dx)
     elseif node.type == "vsplit" then
-      y = common.clamp(y, 0, self.root_node.size.y * 0.95)
+      y = common.clamp(y - node.position.y, 0, self.root_node.size.y * 0.95)
       resize_child_node(node, "y", y, dy)
     end
     node.divider = common.clamp(node.divider, 0.01, 0.99)
@@ -406,10 +406,10 @@ function RootView:on_touch_moved(x, y, dx, dy, ...)
   if self.dragged_divider then
     local node = self.dragged_divider
     if node.type == "hsplit" then
-      x = common.clamp(x, 0, self.root_node.size.x * 0.95)
+      x = common.clamp(x - node.position.x, 0, self.root_node.size.x * 0.95)
       resize_child_node(node, "x", x, dx)
     elseif node.type == "vsplit" then
-      y = common.clamp(y, 0, self.root_node.size.y * 0.95)
+      y = common.clamp(y - node.position.y, 0, self.root_node.size.y * 0.95)
       resize_child_node(node, "y", y, dy)
     end
     node.divider = common.clamp(node.divider, 0.01, 0.99)

data/core/scrollbar.lua

@@ -58,9 +58,9 @@ function Scrollbar:new(options)
   ---@type "expanded" | "contracted" | false @Force the scrollbar status
   self.force_status = options.force_status
   self:set_forced_status(options.force_status)
-  ---@type number? @Override the default value specified by `style.expanded_scrollbar_size`
-  self.contracted_size = options.contracted_size
   ---@type number? @Override the default value specified by `style.scrollbar_size`
+  self.contracted_size = options.contracted_size
+  ---@type number? @Override the default value specified by `style.expanded_scrollbar_size`
   self.expanded_size = options.expanded_size
 end
 
@@ -121,7 +121,7 @@ function Scrollbar:_get_thumb_rect_normal()
   across_size = across_size + (expanded_scrollbar_size - scrollbar_size) * self.expand_percent
   return
     nr.across + nr.across_size - across_size,
-    nr.along + self.percent * nr.scrollable * (nr.along_size - along_size) / (sz - nr.along_size),
+    nr.along + self.percent * (nr.along_size - along_size),
     across_size,
     along_size
 end
@@ -189,8 +189,9 @@ function Scrollbar:_on_mouse_pressed_normal(button, x, y, clicks)
       self.drag_start_offset = along - y
       return true
     elseif overlaps == "track" then
+      local nr = self.normal_rect
       self.drag_start_offset = - along_size / 2
-      return (y - self.normal_rect.along - along_size / 2) / self.normal_rect.along_size
+      return common.clamp((y - nr.along - along_size / 2) / (nr.along_size - along_size), 0, 1)
     end
   end
 end
@@ -237,7 +238,8 @@ end
 function Scrollbar:_on_mouse_moved_normal(x, y, dx, dy)
   if self.dragging then
     local nr = self.normal_rect
-    return common.clamp((y - nr.along + self.drag_start_offset) / nr.along_size, 0, 1)
+    local _, _, _, along_size = self:_get_thumb_rect_normal()
+    return common.clamp((y - nr.along + self.drag_start_offset) / (nr.along_size - along_size), 0, 1)
   end
   return self:_update_hover_status_normal(x, y)
 end
@@ -280,7 +282,7 @@ function Scrollbar:set_size(x, y, w, h, scrollable)
 end
 
 ---Updates the scrollbar location
----@param percent number @number between 0 and 1 representing the position of the middle part of the thumb
+---@param percent number @number between 0 and 1 where 0 means thumb at the top and 1 at the bottom
 function Scrollbar:set_percent(percent)
   self.percent = percent
 end

data/core/start.lua

@@ -1,11 +1,11 @@
 -- this file is used by lite-xl to setup the Lua environment when starting
-VERSION = "2.1.1r3"
+VERSION = "2.1.2r1"
 MOD_VERSION_MAJOR = 3
 MOD_VERSION_MINOR = 0
 MOD_VERSION_PATCH = 0
 MOD_VERSION_STRING = string.format("%d.%d.%d", MOD_VERSION_MAJOR, MOD_VERSION_MINOR, MOD_VERSION_PATCH)
 
-SCALE = tonumber(os.getenv("LITE_SCALE") or os.getenv("GDK_SCALE") or os.getenv("QT_SCALE_FACTOR")) or SCALE
+SCALE = tonumber(os.getenv("LITE_SCALE") or os.getenv("GDK_SCALE") or os.getenv("QT_SCALE_FACTOR")) or 1
 PATHSEP = package.config:sub(1, 1)
 
 EXEDIR = EXEFILE:match("^(.+)[/\\][^/\\]+$")

data/core/statusview.lua

@@ -232,15 +232,27 @@ function StatusView:register_docview_items()
       return {
         style.text, line, ":",
         col > config.line_limit and style.accent or style.text, col,
-        style.text,
-        self.separator,
-        string.format("%.f%%", line / #dv.doc.lines * 100)
+        style.text
       }
     end,
     command = "doc:go-to-line",
     tooltip = "line : column"
   })
 
+  self:add_item({
+    predicate = predicate_docview,
+    name = "doc:position-percent",
+    alignment = StatusView.Item.LEFT,
+    get_item = function()
+      local dv = core.active_view
+      local line = dv.doc:get_selection()
+      return {
+        string.format("%.f%%", line / #dv.doc.lines * 100)
+      }
+    end,
+    tooltip = "caret position"
+  })
+
   self:add_item({
     predicate = predicate_docview,
     name = "doc:selections",
@@ -307,6 +319,19 @@ function StatusView:register_docview_items()
     end,
     command = "doc:toggle-line-ending"
   })
+
+  self:add_item {
+    predicate = predicate_docview,
+    name = "doc:overwrite-mode",
+    alignment = StatusView.Item.RIGHT,
+    get_item = function()
+      return {
+        style.text, core.active_view.doc.overwrite and "OVR" or "INS"
+      }
+    end,
+    command = "doc:toggle-overwrite",
+    separator = StatusView.separator2
+  }
 end
 
 

data/core/syntax.lua

@@ -3,7 +3,7 @@ local common = require "core.common"
 local syntax = {}
 syntax.items = {}
 
-local plain_text_syntax = { name = "Plain Text", patterns = {}, symbols = {} }
+syntax.plain_text_syntax = { name = "Plain Text", patterns = {}, symbols = {} }
 
 
 function syntax.add(t)
@@ -46,7 +46,7 @@ end
 function syntax.get(filename, header)
   return (filename and find(filename, "files"))
       or (header and find(header, "headers"))
-      or plain_text_syntax
+      or syntax.plain_text_syntax
 end
 
 

data/core/tokenizer.lua

@@ -210,9 +210,11 @@ function tokenizer.tokenize(incoming_syntax, text, state, resume)
         -- Remove '^' from the beginning of the pattern
         if type(target) == "table" then
           target[p_idx] = code:usub(2)
+          code = target[p_idx]
         else
           p.pattern = p.pattern and code:usub(2)
           p.regex = p.regex and code:usub(2)
+          code = p.pattern or p.regex
         end
       end
     end

data/core/view.lua

@@ -142,14 +142,14 @@ function View:on_mouse_pressed(button, x, y, clicks)
   local result = self.v_scrollbar:on_mouse_pressed(button, x, y, clicks)
   if result then
     if result ~= true then
-      self.scroll.to.y = result * self:get_scrollable_size()
+      self.scroll.to.y = result * (self:get_scrollable_size() - self.size.y)
     end
     return true
   end
   result = self.h_scrollbar:on_mouse_pressed(button, x, y, clicks)
   if result then
     if result ~= true then
-      self.scroll.to.x = result * self:get_h_scrollable_size()
+      self.scroll.to.x = result * (self:get_h_scrollable_size() - self.size.x)
     end
     return true
   end
@@ -177,7 +177,7 @@ function View:on_mouse_moved(x, y, dx, dy)
   result = self.v_scrollbar:on_mouse_moved(x, y, dx, dy)
   if result then
     if result ~= true then
-      self.scroll.to.y = result * self:get_scrollable_size()
+      self.scroll.to.y = result * (self:get_scrollable_size() - self.size.y)
       if not config.animate_drag_scroll then
         self:clamp_scroll_position()
         self.scroll.y = self.scroll.to.y
@@ -191,7 +191,7 @@ function View:on_mouse_moved(x, y, dx, dy)
   result = self.h_scrollbar:on_mouse_moved(x, y, dx, dy)
   if result then
     if result ~= true then
-      self.scroll.to.x = result * self:get_h_scrollable_size()
+      self.scroll.to.x = result * (self:get_h_scrollable_size() - self.size.x)
       if not config.animate_drag_scroll then
         self:clamp_scroll_position()
         self.scroll.x = self.scroll.to.x
@@ -287,12 +287,16 @@ end
 function View:update_scrollbar()
   local v_scrollable = self:get_scrollable_size()
   self.v_scrollbar:set_size(self.position.x, self.position.y, self.size.x, self.size.y, v_scrollable)
-  self.v_scrollbar:set_percent(self.scroll.y/v_scrollable)
+  local v_percent = self.scroll.y/(v_scrollable - self.size.y)
+  -- Avoid setting nan percent
+  self.v_scrollbar:set_percent(v_percent == v_percent and v_percent or 0)
   self.v_scrollbar:update()
 
   local h_scrollable = self:get_h_scrollable_size()
   self.h_scrollbar:set_size(self.position.x, self.position.y, self.size.x, self.size.y, h_scrollable)
-  self.h_scrollbar:set_percent(self.scroll.x/h_scrollable)
+  local h_percent = self.scroll.x/(h_scrollable - self.size.x)
+  -- Avoid setting nan percent
+  self.h_scrollbar:set_percent(h_percent == h_percent and h_percent or 0)
   self.h_scrollbar:update()
 end
 

data/plugins/autocomplete.lua

@@ -10,6 +10,10 @@ local RootView = require "core.rootview"
 local DocView = require "core.docview"
 local Doc = require "core.doc"
 
+---Symbols cache of all open documents
+---@type table<core.doc, table>
+local cache = setmetatable({}, { __mode = "k" })
+
 config.plugins.autocomplete = common.merge({
   -- Amount of characters that need to be written for autocomplete
   min_len = 3,
@@ -19,8 +23,16 @@ config.plugins.autocomplete = common.merge({
   max_suggestions = 100,
   -- Maximum amount of symbols to cache per document
   max_symbols = 4000,
+  -- Which symbols to show on the suggestions list: global, local, related, none
+  suggestions_scope = "global",
   -- Font size of the description box
   desc_font_size = 12,
+  -- Do not show the icons associated to the suggestions
+  hide_icons = false,
+  -- Position where icons will be displayed on the suggestions list
+  icon_position = "left",
+  -- Do not show the additional information related to a suggestion
+  hide_info = false,
   -- The config specification used by gui generators
   config_spec = {
     name = "Autocomplete",
@@ -60,6 +72,26 @@ config.plugins.autocomplete = common.merge({
       min = 1000,
       max = 10000
     },
+    {
+      label = "Suggestions Scope",
+      description = "Which symbols to show on the suggestions list.",
+      path = "suggestions_scope",
+      type = "selection",
+      default = "global",
+      values = {
+        {"All Documents", "global"},
+        {"Current Document", "local"},
+        {"Related Documents", "related"},
+        {"Known Symbols", "none"}
+      },
+      on_apply = function(value)
+        if value == "global" then
+          for _, doc in ipairs(core.docs) do
+            if cache[doc] then cache[doc] = nil end
+          end
+        end
+      end
+    },
     {
       label = "Description Font Size",
       description = "Font size of the description box.",
@@ -67,6 +99,31 @@ config.plugins.autocomplete = common.merge({
       type = "number",
       default = 12,
       min = 8
+    },
+    {
+      label = "Hide Icons",
+      description = "Do not show icons on the suggestions list.",
+      path = "hide_icons",
+      type = "toggle",
+      default = false
+    },
+    {
+      label = "Icons Position",
+      description = "Position to display icons on the suggestions list.",
+      path = "icon_position",
+      type = "selection",
+      default = "left",
+      values = {
+        {"Left", "left"},
+        {"Right", "Right"}
+      }
+    },
+    {
+      label = "Hide Items Info",
+      description = "Do not show the additional info related to each suggestion.",
+      path = "hide_info",
+      type = "toggle",
+      default = false
     }
   }
 }, config.plugins.autocomplete)
@@ -76,6 +133,7 @@ local autocomplete = {}
 autocomplete.map = {}
 autocomplete.map_manually = {}
 autocomplete.on_close = nil
+autocomplete.icons = {}
 
 -- Flag that indicates if the autocomplete box was manually triggered
 -- with the autocomplete.complete() function to prevent the suggestions
@@ -95,6 +153,7 @@ function autocomplete.add(t, manually_triggered)
           {
             text = text,
             info = info.info,
+            icon = info.icon,          -- Name of icon to show
             desc = info.desc,          -- Description shown on item selected
             onhover = info.onhover,    -- A callback called once when item is hovered
             onselect = info.onselect,  -- A callback called when item is selected
@@ -119,28 +178,35 @@ end
 --
 -- Thread that scans open document symbols and cache them
 --
-local max_symbols = config.plugins.autocomplete.max_symbols
+local global_symbols = {}
 
 core.add_thread(function()
-  local cache = setmetatable({}, { __mode = "k" })
-
-  local function get_syntax_symbols(symbols, doc)
-    if doc.syntax then
-      for sym in pairs(doc.syntax.symbols) do
-        symbols[sym] = true
+  local function load_syntax_symbols(doc)
+    if doc.syntax and not autocomplete.map["language_"..doc.syntax.name] then
+      local symbols = {
+        name = "language_"..doc.syntax.name,
+        files = doc.syntax.files,
+        items = {}
+      }
+      for name, type in pairs(doc.syntax.symbols) do
+        symbols.items[name] = type
       end
+      autocomplete.add(symbols)
+      return symbols.items
     end
+    return {}
   end
 
   local function get_symbols(doc)
     local s = {}
-    get_syntax_symbols(s, doc)
+    local syntax_symbols = load_syntax_symbols(doc)
+    local max_symbols = config.plugins.autocomplete.max_symbols
     if doc.disable_symbols then return s end
     local i = 1
     local symbols_count = 0
     while i <= #doc.lines do
       for sym in doc.lines[i]:gmatch(config.symbol_pattern) do
-        if not s[sym] then
+        if not s[sym] and not syntax_symbols[sym] then
           symbols_count = symbols_count + 1
           if symbols_count > max_symbols then
             s = nil
@@ -186,14 +252,18 @@ core.add_thread(function()
         }
       end
       -- update symbol set with doc's symbol set
+      if config.plugins.autocomplete.suggestions_scope == "global" then
         for sym in pairs(cache[doc].symbols) do
           symbols[sym] = true
         end
+      end
       coroutine.yield()
     end
 
-    -- update symbols list
-    autocomplete.add { name = "open-docs", items = symbols }
+    -- update global symbols list
+    if config.plugins.autocomplete.suggestions_scope == "global" then
+      global_symbols = symbols
+    end
 
     -- wait for next scan
     local valid = true
@@ -240,12 +310,50 @@ local function update_suggestions()
     map = autocomplete.map_manually
   end
 
+  local assigned_sym = {}
+
   -- get all relevant suggestions for given filename
   local items = {}
   for _, v in pairs(map) do
     if common.match_pattern(filename, v.files) then
       for _, item in pairs(v.items) do
         table.insert(items, item)
+        assigned_sym[item.text] = true
+      end
+    end
+  end
+
+  -- Append the global, local or related text symbols if applicable
+  local scope = config.plugins.autocomplete.suggestions_scope
+
+  if not triggered_manually then
+    local text_symbols = nil
+
+    if scope == "global" then
+      text_symbols = global_symbols
+    elseif scope == "local" and cache[doc] and cache[doc].symbols then
+      text_symbols = cache[doc].symbols
+    elseif scope == "related" then
+      for _, d in ipairs(core.docs) do
+        if doc.syntax == d.syntax then
+          if cache[d].symbols then
+            for name in pairs(cache[d].symbols) do
+              if not assigned_sym[name] then
+                table.insert(items, setmetatable(
+                  {text = name, info = "normal"}, mt
+                ))
+              end
+            end
+          end
+        end
+      end
+    end
+
+    if text_symbols then
+      for name in pairs(text_symbols) do
+        if not assigned_sym[name] then
+          table.insert(items, setmetatable({text = name, info = "normal"}, mt))
+        end
       end
     end
   end
@@ -286,13 +394,23 @@ local function get_suggestions_rect(av)
   y = y + av:get_line_height() + style.padding.y
   local font = av:get_font()
   local th = font:get_height()
+  local has_icons = false
+  local hide_info = config.plugins.autocomplete.hide_info
+  local hide_icons = config.plugins.autocomplete.hide_icons
 
   local max_width = 0
   for _, s in ipairs(suggestions) do
     local w = font:get_width(s.text)
-    if s.info then
+    if s.info and not hide_info then
       w = w + style.font:get_width(s.info) + style.padding.x
     end
+    local icon = s.icon or s.info
+    if not hide_icons and icon and autocomplete.icons[icon] then
+      w = w + autocomplete.icons[icon].font:get_width(
+        autocomplete.icons[icon].char
+      ) + (style.padding.x / 2)
+      has_icons = true
+    end
     max_width = math.max(max_width, w)
   end
 
@@ -319,7 +437,8 @@ local function get_suggestions_rect(av)
     x - style.padding.x,
     y - style.padding.y,
     max_width + style.padding.x * 2,
-    max_items * (th + style.padding.y) + style.padding.y
+    max_items * (th + style.padding.y) + style.padding.y,
+    has_icons
 end
 
 local function wrap_line(line, max_chars)
@@ -439,7 +558,7 @@ local function draw_suggestions_box(av)
   local ah = config.plugins.autocomplete.max_height
 
   -- draw background rect
-  local rx, ry, rw, rh = get_suggestions_rect(av)
+  local rx, ry, rw, rh, has_icons = get_suggestions_rect(av)
   renderer.draw_rect(rx, ry, rw, rh, style.background3)
 
   -- draw text
@@ -448,17 +567,52 @@ local function draw_suggestions_box(av)
   local y = ry + style.padding.y / 2
   local show_count = #suggestions <= ah and #suggestions or ah
   local start_index = suggestions_idx > ah and (suggestions_idx-(ah-1)) or 1
+  local hide_info = config.plugins.autocomplete.hide_info
 
   for i=start_index, start_index+show_count-1, 1 do
     if not suggestions[i] then
       break
     end
     local s = suggestions[i]
+
+    local icon_l_padding, icon_r_padding = 0, 0
+
+    if has_icons then
+      local icon = s.icon or s.info
+      if icon and autocomplete.icons[icon] then
+        local ifont = autocomplete.icons[icon].font
+        local itext = autocomplete.icons[icon].char
+        local icolor = autocomplete.icons[icon].color
+        if i == suggestions_idx then
+          icolor = style.accent
+        elseif type(icolor) == "string" then
+          icolor = style.syntax[icolor]
+        end
+        if config.plugins.autocomplete.icon_position == "left" then
+          common.draw_text(
+            ifont, icolor, itext, "left", rx + style.padding.x, y, rw, lh
+          )
+          icon_l_padding = ifont:get_width(itext) + (style.padding.x / 2)
+        else
+          common.draw_text(
+            ifont, icolor, itext, "right", rx, y, rw - style.padding.x, lh
+          )
+          icon_r_padding = ifont:get_width(itext) + (style.padding.x / 2)
+        end
+      end
+    end
+
     local color = (i == suggestions_idx) and style.accent or style.text
-    common.draw_text(font, color, s.text, "left", rx + style.padding.x, y, rw, lh)
-    if s.info then
+    common.draw_text(
+      font, color, s.text, "left",
+      rx + icon_l_padding + style.padding.x, y, rw, lh
+    )
+    if s.info and not hide_info then
       color = (i == suggestions_idx) and style.text or style.dim
-      common.draw_text(style.font, color, s.info, "right", rx, y, rw - style.padding.x, lh)
+      common.draw_text(
+        style.font, color, s.info, "right",
+        rx, y, rw - icon_r_padding - style.padding.x, lh
+      )
     end
     y = y + lh
     if suggestions_idx == i then
@@ -619,6 +773,31 @@ function autocomplete.can_complete()
   return false
 end
 
+---Register a font icon that can be assigned to completion items.
+---@param name string
+---@param character string
+---@param font? renderer.font
+---@param color? string | renderer.color A style.syntax[] name or specific color
+function autocomplete.add_icon(name, character, font, color)
+  local color_type = type(color)
+  assert(
+    not color or color_type == "table"
+      or (color_type == "string" and style.syntax[color]),
+    "invalid icon color given"
+  )
+  autocomplete.icons[name] = {
+    char = character,
+    font = font or style.code_font,
+    color = color or "keyword"
+  }
+end
+
+--
+-- Register built-in syntax symbol types icon
+--
+for name, _ in pairs(style.syntax) do
+  autocomplete.add_icon(name, "M", style.icon_font, name)
+end
 
 --
 -- Commands
@@ -632,7 +811,6 @@ command.add(predicate, {
   ["autocomplete:complete"] = function(dv)
     local doc = dv.doc
     local item = suggestions[suggestions_idx]
-    local text = item.text
     local inserted = false
     if item.onselect then
       inserted = item.onselect(suggestions_idx, item)

data/plugins/detectindent.lua

@@ -266,7 +266,7 @@ local function detect_indent_stat(doc)
   local max_lines = auto_detect_max_lines
   for i, text in get_non_empty_lines(doc.syntax, doc.lines) do
     local spaces = text:match("^ +")
-    if spaces then table.insert(stat, spaces:len()) end
+    if spaces and #spaces > 1 then table.insert(stat, #spaces) end
     local tabs = text:match("^\t+")
     if tabs then tab_count = tab_count + 1 end
     -- if nothing found for first lines try at least 4 more times

data/plugins/drawwhitespace.lua

@@ -347,7 +347,7 @@ end
 
 command.add(nil, {
   ["draw-whitespace:toggle"]  = function()
-    config.plugins.drawwhitespace.enabled = not config.drawwhitespace.enabled
+    config.plugins.drawwhitespace.enabled = not config.plugins.drawwhitespace.enabled
   end,
 
   ["draw-whitespace:disable"] = function()

data/plugins/language_cpp.lua

@@ -14,9 +14,9 @@ syntax.add {
     { pattern = { "/%*", "%*/" },           type = "comment"  },
     { pattern = { '"', '"', '\\' },         type = "string"   },
     { pattern = { "'", "'", '\\' },         type = "string"   },
-    { pattern = "0x%x+",                    type = "number"   },
+    { pattern = "0x%x+[%x']*",              type = "number"   },
     { pattern = "%d+[%d%.'eE]*f?",          type = "number"   },
-    { pattern = "%.?%d+f?",                 type = "number"   },
+    { pattern = "%.?%d+[%d']*f?",           type = "number"   },
     { pattern = "[%+%-=/%*%^%%<>!~|:&]",    type = "operator" },
     { pattern = "##",                       type = "operator" },
     { pattern = "struct%s()[%a_][%w_]*",    type = {"keyword", "keyword2"} },

data/plugins/language_js.lua

@@ -1,6 +1,56 @@
 -- mod-version:3
 local syntax = require "core.syntax"
 
+-- Regex pattern explanation:
+-- This will match / and will look ahead for something that looks like a regex.
+--
+-- (?!/) Don't match empty regexes.
+--
+-- (?>...) this is using an atomic group to minimize backtracking, as that'd
+--         cause "Catastrophic Backtracking" in some cases.
+--
+-- [^\\[\/]++ will match anything that's isn't an escape, a start of character
+--           class or an end of pattern, without backtracking (the second +).
+--
+-- \\. will match anything that's escaped.
+--
+-- \[(?:[^\\\]++]|\\.)*+\] will match character classes.
+--
+-- /[gmiyuvsd]*\s*[\n,;\)\]\}\.]) will match the end of pattern delimiter, optionally
+--                                followed by pattern options, and anything that can
+--                                be after a pattern.
+--
+-- Demo with some unit tests (click on the Unit Tests entry): https://regex101.com/r/R0w8Qw/1
+-- Note that it has a couple of changes to make it work on that platform.
+local regex_pattern = {
+  [=[/(?=(?!/)(?:(?>[^\\[\/]++|\\.|\[(?:[^\\\]]++|\\.)*+\])*+)++/[gmiyuvsd]*\s*[\n,;\)\]\}\.])()]=],
+  "/()[gmiyuvsd]*", "\\"
+}
+
+-- For the moment let's not actually differentiate the insides of the regex,
+-- as this will need new token types...
+local inner_regex_syntax = {
+  patterns = {
+    { pattern = "%(()%?[:!=><]", type = { "string", "string" } },
+    { pattern = "[.?+*%(%)|]", type = "string" },
+    { pattern = "{%d*,?%d*}", type = "string" },
+    { regex = { [=[\[()\^?]=], [=[(?:\]|(?=\n))()]=], "\\" },
+      type = { "string", "string" },
+      syntax = { -- Inside character class
+        patterns = {
+          { pattern = "\\\\", type = "string" },
+          { pattern = "\\%]", type = "string" },
+          { pattern = "[^%]\n]", type = "string" }
+        },
+        symbols = {}
+      }
+    },
+    { regex = "\\/", type = "string" },
+    { regex = "[^/\n]", type = "string" },
+  },
+  symbols = {}
+}
+
 syntax.add {
   name = "JavaScript",
   files = { "%.js$", "%.json$", "%.cson$", "%.mjs$", "%.cjs$" },
@@ -9,16 +59,16 @@ syntax.add {
   patterns = {
     { pattern = "//.*",                      type = "comment"  },
     { pattern = { "/%*", "%*/" },            type = "comment"  },
-    { pattern = { '/[^= ]', '/', '\\' },type = "string"   },
+    { regex = regex_pattern, syntax = inner_regex_syntax, type = {"string", "string"}  },
     { pattern = { '"', '"', '\\' },          type = "string"   },
     { pattern = { "'", "'", '\\' },          type = "string"   },
     { pattern = { "`", "`", '\\' },          type = "string"   },
-    { pattern = "0x[%da-fA-F_]+n?",     type = "number"   },
-    { pattern = "-?%d+[%d%.eE_n]*",     type = "number"   },
-    { pattern = "-?%.?%d+",             type = "number"   },
+    { pattern = "0x[%da-fA-F_]+n?()%s*()/?", type = {"number", "normal", "operator"}   },
+    { pattern = "-?%d+[%d%.eE_n]*()%s*()/?", type = {"number", "normal", "operator"}   },
+    { pattern = "-?%.?%d+()%s*()/?",         type = {"number", "normal", "operator"}   },
     { pattern = "[%+%-=/%*%^%%<>!~|&]",      type = "operator" },
     { pattern = "[%a_][%w_]*%f[(]",          type = "function" },
-    { pattern = "[%a_][%w_]*",          type = "symbol"   },
+    { pattern = "[%a_][%w_]*()%s*()/?",      type = {"symbol", "normal", "operator"}   },
   },
   symbols = {
     ["async"]      = "keyword",

data/plugins/language_md.lua

@@ -3,25 +3,6 @@ local syntax = require "core.syntax"
 local style = require "core.style"
 local core = require "core"
 
-local initial_color = style.syntax["keyword2"]
-
--- Add 3 type of font styles for use on markdown files
-for _, attr in pairs({"bold", "italic", "bold_italic"}) do
-  local attributes = {}
-  if attr ~= "bold_italic" then
-    attributes[attr] = true
-  else
-    attributes["bold"] = true
-    attributes["italic"] = true
-  end
-  style.syntax_fonts["markdown_"..attr] = style.code_font:copy(
-    style.code_font:get_size(),
-    attributes
-  )
-  -- also add a color for it
-  style.syntax["markdown_"..attr] = style.syntax["keyword2"]
-end
-
 local in_squares_match = "^%[%]"
 local in_parenthesis_match = "^%(%)"
 
@@ -225,12 +206,63 @@ syntax.add {
 
 -- Adjust the color on theme changes
 core.add_thread(function()
-  while true do
-    if initial_color ~= style.syntax["keyword2"] then
-      for _, attr in pairs({"bold", "italic", "bold_italic"}) do
+  local custom_fonts = { bold = {font = nil, color = nil}, italic = {}, bold_italic = {} }
+  local initial_color
+  local last_code_font
+
+  local function set_font(attr)
+    local attributes = {}
+    if attr ~= "bold_italic" then
+      attributes[attr] = true
+    else
+      attributes["bold"] = true
+      attributes["italic"] = true
+    end
+    local font = style.code_font:copy(
+      style.code_font:get_size(),
+      attributes
+    )
+    custom_fonts[attr].font = font
+    style.syntax_fonts["markdown_"..attr] = font
+  end
+
+  local function set_color(attr)
+    custom_fonts[attr].color = style.syntax["keyword2"]
     style.syntax["markdown_"..attr] = style.syntax["keyword2"]
   end
+
+  -- Add 3 type of font styles for use on markdown files
+  for attr, _ in pairs(custom_fonts) do
+    -- Only set it if the font wasn't manually customized
+    if not style.syntax_fonts["markdown_"..attr] then
+      set_font(attr)
+    end
+
+    -- Only set it if the color wasn't manually customized
+    if not style.syntax["markdown_"..attr] then
+      set_color(attr)
+    end
+  end
+
+  while true do
+    if last_code_font ~= style.code_font then
+      last_code_font = style.code_font
+      for attr, _ in pairs(custom_fonts) do
+        -- Only set it if the font wasn't manually customized
+        if style.syntax_fonts["markdown_"..attr] == custom_fonts[attr].font then
+          set_font(attr)
+        end
+      end
+    end
+
+    if initial_color ~= style.syntax["keyword2"] then
       initial_color = style.syntax["keyword2"]
+      for attr, _ in pairs(custom_fonts) do
+        -- Only set it if the color wasn't manually customized
+        if style.syntax["markdown_"..attr] == custom_fonts[attr].color then
+          set_color(attr)
+        end
+      end
     end
     coroutine.yield(1)
   end

data/plugins/linewrapping.lua

@@ -219,7 +219,7 @@ function LineWrapping.draw_guide(docview)
 end
 
 function LineWrapping.update_docview_breaks(docview)
-  local x,y,w,h = docview.v_scrollbar:get_thumb_rect()
+  local w = docview.v_scrollbar.expanded_size or style.expanded_scrollbar_size
   local width = (type(config.plugins.linewrapping.width_override) == "function" and config.plugins.linewrapping.width_override(docview))
     or config.plugins.linewrapping.width_override or (docview.size.x - docview:get_gutter_width() - w)
   if (not docview.wrapped_settings or docview.wrapped_settings.width == nil or width ~= docview.wrapped_settings.width) then

data/plugins/treeview.lua

@@ -29,7 +29,7 @@ local tooltip_alpha_rate = 1
 
 local function get_depth(filename)
   local n = 1
-  for sep in filename:gmatch("[\\/]") do
+  for _ in filename:gmatch(PATHSEP) do
     n = n + 1
   end
   return n

data/plugins/workspace.lua

@@ -83,7 +83,8 @@ local function save_view(view)
       filename = view.doc.filename,
       selection = { view.doc:get_selection() },
       scroll = { x = view.scroll.to.x, y = view.scroll.to.y },
-      text = not view.doc.filename and view.doc:get_text(1, 1, math.huge, math.huge)
+      crlf = view.doc.crlf,
+      text = view.doc.new_file and view.doc:get_text(1, 1, math.huge, math.huge)
     }
   end
   if mt == LogView then return end
@@ -106,7 +107,6 @@ local function load_view(t)
     if not t.filename then
       -- document not associated to a file
       dv = DocView(core.open_doc())
-      if t.text then dv.doc:insert(1, 1, t.text) end
     else
       -- we have a filename, try to read the file
       local ok, doc = pcall(core.open_doc, t.filename)
@@ -114,9 +114,11 @@ local function load_view(t)
         dv = DocView(doc)
       end
     end
-    -- doc view "dv" can be nil here if the filename associated to the document
-    -- cannot be read.
     if dv and dv.doc then
+      if dv.doc.new_file and t.text then
+        dv.doc:insert(1, 1, t.text)
+        dv.doc.crlf = t.crlf
+      end
       dv.doc:set_selection(table.unpack(t.selection))
       dv.last_line1, dv.last_col1, dv.last_line2, dv.last_col2 = dv.doc:get_selection()
       dv.scroll.x, dv.scroll.to.x = t.scroll.x, t.scroll.x

docs/api/dirmonitor.lua

@@ -45,10 +45,14 @@ function dirmonitor:unwatch(fd_or_path) end
 ---edited, removed or added. A file descriptor will be passed to the
 ---callback in "multiple" mode or a path in "single" mode.
 ---
+---If an error occurred during the callback execution, the error callback will be called with the error object.
+---This callback should not manipulate coroutines to avoid deadlocks.
+---
 ---@param callback dirmonitor.callback
+---@param error_callback fun(error: any): nil
 ---
 ---@return boolean? changes True when changes were detected.
-function dirmonitor:check(callback) end
+function dirmonitor:check(callback, error_callback) end
 
 ---
 ---Get the working mode for the current file system monitoring backend.

docs/api/system.lua

@@ -61,10 +61,10 @@ function system.poll_event() end
 ---
 ---Wait until an event is triggered.
 ---
----@param timeout number Amount of seconds, also supports fractions
----of a second, eg: 0.01
+---@param timeout? number Amount of seconds, also supports fractions
+---of a second, eg: 0.01. If not provided, waits forever.
 ---
----@return boolean status True on success or false if there was an error.
+---@return boolean status True on success or false if there was an error or if no event was received.
 function system.wait_event(timeout) end
 
 ---

meson.build

@@ -4,8 +4,7 @@ project('lite-xl',
     license : 'MIT',
     meson_version : '>= 0.56',
     default_options : [
-        'c_std=gnu11',
-        'wrap_mode=nofallback'
+        'c_std=gnu11'
     ]
 )
 
@@ -84,11 +83,10 @@ if not get_option('source-only')
         'lua',    # Fedora
     ]
 
+    if get_option('use_system_lua')
         foreach lua : lua_names
             last_lua = (lua == lua_names[-1] or get_option('wrap_mode') == 'forcefallback')
-        lua_dep = dependency(lua, fallback: last_lua ? ['lua', 'lua_dep'] : [], required : false,
-            version: '>= 5.4',
-            default_options: default_fallback_options + ['default_library=static', 'line_editing=false', 'interpreter=false']
+            lua_dep = dependency(lua, required : false,
             )
             if lua_dep.found()
                 break
@@ -101,6 +99,11 @@ if not get_option('source-only')
                 lua_dep = cc.find_library('lua', required : true)
             endif
         endforeach
+    else
+        lua_dep = dependency('', fallback: ['lua', 'lua_dep'], required : true,
+            default_options: default_fallback_options + ['default_library=static', 'line_editing=disabled', 'interpreter=false']
+        )
+    endif
 
     pcre2_dep = dependency('libpcre2-8', fallback: ['pcre2', 'libpcre2_8'],
         default_options: default_fallback_options + ['default_library=static', 'grep=false', 'test=false']
@@ -120,6 +123,7 @@ if not get_option('source-only')
     sdl_options += 'use_atomic=enabled'
     sdl_options += 'use_threads=enabled'
     sdl_options += 'use_timers=enabled'
+    sdl_options += 'with_main=true'
     # investigate if this is truly needed
     # Do not remove before https://github.com/libsdl-org/SDL/issues/5413 is released
     sdl_options += 'use_events=enabled'
@@ -152,12 +156,24 @@ if not get_option('source-only')
     sdl_options += 'use_video_vulkan=disabled'
     sdl_options += 'use_video_offscreen=disabled'
     sdl_options += 'use_power=disabled'
+    sdl_options += 'system_iconv=disabled'
 
     sdl_dep = dependency('sdl2', fallback: ['sdl2', 'sdl2_dep'],
         default_options: default_fallback_options + sdl_options
     )
 
-    lite_deps = [lua_dep, sdl_dep, freetype_dep, pcre2_dep, libm, libdl]
+    if host_machine.system() == 'windows'
+        if sdl_dep.type_name() == 'internal'
+            sdlmain_dep = dependency('sdl2main', fallback: ['sdl2main_dep'])
+        else
+            sdlmain_dep = cc.find_library('SDL2main')
+        endif
+    else
+        sdlmain_dep = dependency('', required: false)
+        assert(not sdlmain_dep.found(), 'checking if fake dependency has been found')
+    endif
+
+    lite_deps = [lua_dep, sdl_dep, sdlmain_dep, freetype_dep, pcre2_dep, libm, libdl]
 endif
 #===============================================================================
 # Install Configuration

meson_options.txt

@@ -4,3 +4,4 @@ option('portable', type : 'boolean', value : false, description: 'Portable insta
 option('renderer', type : 'boolean', value : false, description: 'Use SDL renderer')
 option('dirmonitor_backend', type : 'combo', value : '', choices : ['', 'inotify', 'fsevents', 'kqueue', 'win32', 'dummy'], description: 'define what dirmonitor backend to use')
 option('arch_tuple', type : 'string', value : '', description: 'Specify a custom architecture tuple')
+option('use_system_lua', type : 'boolean', value : false, description: 'Prefer System Lua over a the meson wrap')

resources/README.md

@@ -11,8 +11,9 @@ This folder contains resources that is used for building or packaging the projec
 - `icons/icon.{icns,ico,inl,rc,svg}`: lite-xl icon in various formats.
 - `linux/com.lite_xl.LiteXL.appdata.xml`: AppStream metadata.
 - `linux/com.lite_xl.LiteXL.desktop`: Desktop file for Linux desktops.
-- `macos/appdmg.png`: Background image for packaging MacOS DMGs.
-- `macos/Info.plist.in`: Template for generating `info.plist` on MacOS. See `macos/macos-retina-display.md` for details.
+- `macos/dmg-cover.png`: Background image for packaging macOS DMGs.
+- `macos/Info.plist.in`: Template for generating `info.plist` on macOS. See `macos/macos-retina-display.md` for details.
+- `macos/lite-xl-dmg.py`: Configuration options for dmgbuild for packaging macOS DMGs.
 - `windows/001-lua-unicode.diff`: Patch for allowing Lua to load files with UTF-8 filenames on Windows.
 
 ### Development

resources/include/lite_xl_plugin_api.h

@@ -31,9 +31,14 @@
  * An example command would be: gcc -shared -o xxxxx.so xxxxx.c
  * You must not link to ANY lua library to avoid symbol collision.
  *
- * This file contains stock configuration for a typical installation of Lua 5.4.
+ * This file contains stock configuration for a typical installation of Lua 5.4.6.
  * DO NOT MODIFY ANYTHING. MODIFYING STUFFS IN HERE WILL BREAK
  * COMPATIBILITY WITH LITE XL AND CAUSE UNDEBUGGABLE BUGS.
+ *
+ * For reference, here are a list of permalinks to previous version of this file that targets an older version of Lua.
+ * If you don't need functionalities offered by the new version, use the OLDEST FILE for backwards compatibility.
+ *
+ * - Lua 5.4.4: https://github.com/lite-xl/lite-xl/blob/397973067f14420b26e3b20a238a50016c0b75e2/resources/include/lite_xl_plugin_api.h
 **/
 #ifndef LITE_XL_PLUGIN_API
 #define LITE_XL_PLUGIN_API
@@ -1028,6 +1033,7 @@ extern const char lua_ident[];
 SYMBOL_DECLARE(lua_State *, lua_newstate, lua_Alloc f, void *ud)
 SYMBOL_DECLARE(void,        lua_close, lua_State *L)
 SYMBOL_DECLARE(lua_State *, lua_newthread, lua_State *L)
+SYMBOL_DECLARE(int,         lua_closethread, lua_State *L, lua_State *from)
 SYMBOL_DECLARE(int,         lua_resetthread, lua_State *L)
 
 SYMBOL_DECLARE(lua_CFunction, lua_atpanic, lua_State *L, lua_CFunction panicf)
@@ -1739,6 +1745,9 @@ SYMBOL_WRAP_DECL(void, lua_close, lua_State *L) {
 SYMBOL_WRAP_DECL(lua_State *, lua_newthread, lua_State *L) {
   return SYMBOL_WRAP_CALL(lua_newthread, L);
 }
+SYMBOL_WRAP_DECL(int, lua_closethread, lua_State *L, lua_State *from) {
+  return SYMBOL_WRAP_CALL(lua_closethread, L, from);
+}
 SYMBOL_WRAP_DECL(int, lua_resetthread, lua_State *L) {
   return SYMBOL_WRAP_CALL(lua_resetthread, L);
 }
@@ -2351,6 +2360,7 @@ void lite_xl_plugin_init(void *XL) {
   IMPORT_SYMBOL(lua_newstate, lua_State *, lua_Alloc f, void *ud);
   IMPORT_SYMBOL(lua_close, void, lua_State *L);
   IMPORT_SYMBOL(lua_newthread, lua_State *, lua_State *L);
+  IMPORT_SYMBOL(lua_closethread, int, lua_State *L, lua_State *from);
   IMPORT_SYMBOL(lua_resetthread, int, lua_State *L);
   IMPORT_SYMBOL(lua_atpanic, lua_CFunction, lua_State *L, lua_CFunction panicf);
   IMPORT_SYMBOL(lua_version, lua_Number, lua_State *L);

resources/macos/lite-xl-dmg.py

@@ -0,0 +1,28 @@
+# configuration for dmgbuild
+
+import os.path
+
+app_path = "Lite XL.app"
+app_name = os.path.basename(app_path)
+
+# Image options
+format = defines.get("format", "UDZO")
+
+# Content options
+files = [(app_path, app_name)]
+symlinks = { "Applications": "/Applications" }
+icon = "resources/icons/icon.icns"
+icon_locations = {
+    app_name: (144, 248),
+    "Applications": (336, 248)
+}
+
+# Window options
+background = "resources/macos/dmg-cover.png"
+window_rect = ((360, 360), (480, 380))
+default_view = "coverflow"
+include_icon_view_settings = True
+
+# Icon view options
+icon_size = 80
+text_size = 11.0

resources/windows/001-lua-unicode.diff

@@ -1,6 +1,6 @@
-diff -ruN lua-5.4.4\meson.build lua-5.4.4-patched\meson.build
---- lua-5.4.4\meson.build	Wed Feb 22 18:16:56 2023
-+++ lua-5.4.4-patched\meson.build	Wed Feb 22 04:10:01 2023
+diff -ruN lua-5.4.4/meson.build lua-5.4.4-patched/meson.build
+--- lua-5.4.4/meson.build	Wed Feb 22 18:16:56 2023
++++ lua-5.4.4-patched/meson.build	Wed Feb 22 04:10:01 2023
 @@ -85,6 +85,7 @@
    'src/lutf8lib.c',
    'src/lvm.c',
@@ -9,9 +9,9 @@ diff -ruN lua-5.4.4\meson.build lua-5.4.4-patched\meson.build
    dependencies: lua_lib_deps,
    version: meson.project_version(),
    soversion: lua_versions[0] + '.' + lua_versions[1],
-diff -ruN lua-5.4.4\src\luaconf.h lua-5.4.4-patched\src\luaconf.h
---- lua-5.4.4\src\luaconf.h	Thu Jan 13 19:24:43 2022
-+++ lua-5.4.4-patched\src\luaconf.h	Wed Feb 22 04:10:02 2023
+diff -ruN lua-5.4.4/src/luaconf.h lua-5.4.4-patched/src/luaconf.h
+--- lua-5.4.4/src/luaconf.h	Thu Jan 13 19:24:43 2022
++++ lua-5.4.4-patched/src/luaconf.h	Wed Feb 22 04:10:02 2023
 @@ -782,5 +782,15 @@
 
 
@@ -28,9 +28,9 @@ diff -ruN lua-5.4.4\src\luaconf.h lua-5.4.4-patched\src\luaconf.h
 +
  #endif
 
-diff -ruN lua-5.4.4\src\Makefile lua-5.4.4-patched\src\Makefile
---- lua-5.4.4\src\Makefile	Thu Jul 15 22:01:52 2021
-+++ lua-5.4.4-patched\src\Makefile	Wed Feb 22 04:10:02 2023
+diff -ruN lua-5.4.4/src/Makefile lua-5.4.4-patched/src/Makefile
+--- lua-5.4.4/src/Makefile	Thu Jul 15 22:01:52 2021
++++ lua-5.4.4-patched/src/Makefile	Wed Feb 22 04:10:02 2023
 @@ -33,7 +33,7 @@
  PLATS= guess aix bsd c89 freebsd generic linux linux-readline macosx mingw posix solaris
 
@@ -40,9 +40,9 @@ diff -ruN lua-5.4.4\src\Makefile lua-5.4.4-patched\src\Makefile
  LIB_O=	lauxlib.o lbaselib.o lcorolib.o ldblib.o liolib.o lmathlib.o loadlib.o loslib.o lstrlib.o ltablib.o lutf8lib.o linit.o
  BASE_O= $(CORE_O) $(LIB_O) $(MYOBJS)
 
-diff -ruN lua-5.4.4\src\utf8_wrappers.c lua-5.4.4-patched\src\utf8_wrappers.c
---- lua-5.4.4\src\utf8_wrappers.c	Thu Jan 01 08:00:00 1970
-+++ lua-5.4.4-patched\src\utf8_wrappers.c	Wed Feb 22 18:13:45 2023
+diff -ruN lua-5.4.4/src/utf8_wrappers.c lua-5.4.4-patched/src/utf8_wrappers.c
+--- lua-5.4.4/src/utf8_wrappers.c	Thu Jan 01 08:00:00 1970
++++ lua-5.4.4-patched/src/utf8_wrappers.c	Wed Feb 22 18:13:45 2023
 @@ -0,0 +1,129 @@
 +/**
 + * Wrappers to provide Unicode (UTF-8) support on Windows.
@@ -173,9 +173,9 @@ diff -ruN lua-5.4.4\src\utf8_wrappers.c lua-5.4.4-patched\src\utf8_wrappers.c
 +  return env_value;
 +}
 +#endif
-diff -ruN lua-5.4.4\src\utf8_wrappers.h lua-5.4.4-patched\src\utf8_wrappers.h
---- lua-5.4.4\src\utf8_wrappers.h	Thu Jan 01 08:00:00 1970
-+++ lua-5.4.4-patched\src\utf8_wrappers.h	Wed Feb 22 18:09:48 2023
+diff -ruN lua-5.4.4/src/utf8_wrappers.h lua-5.4.4-patched/src/utf8_wrappers.h
+--- lua-5.4.4/src/utf8_wrappers.h	Thu Jan 01 08:00:00 1970
++++ lua-5.4.4-patched/src/utf8_wrappers.h	Wed Feb 22 18:09:48 2023
 @@ -0,0 +1,46 @@
 +/**
 + * Wrappers to provide Unicode (UTF-8) support on Windows.

scripts/README.md

@@ -10,7 +10,7 @@ Various scripts and configurations used to configure, build, and package Lite XL
 
 ### Package
 
-- **appdmg.sh**:    Create a macOS DMG image using [AppDMG][1].
+- **appdmg.sh**:    Create a macOS DMG image using [dmgbuild][1].
 - **appimage.sh**:  [AppImage][2] builder.
 - **innosetup.sh**: Creates a 32/64 bit [InnoSetup][3] installer package.
 - **package.sh**:   Creates all binary / DMG image / installer / source packages.
@@ -25,6 +25,6 @@ Various scripts and configurations used to configure, build, and package Lite XL
 - **generate_header.sh**: Generates a header file for native plugin API
 - **keymap-generator**: Generates a JSON file containing the keymap
 
-[1]: https://github.com/LinusU/node-appdmg
+[1]: https://github.com/dmgbuild/dmgbuild
 [2]: https://docs.appimage.org/
 [3]: https://jrsoftware.org/isinfo.php

scripts/appdmg.sh

@@ -6,25 +6,4 @@ if [ ! -e "src/api/api.h" ]; then
   exit 1
 fi
 
-cat > lite-xl-dmg.json << EOF
-{
-  "title": "Lite XL",
-  "icon": "$(pwd)/resources/icons/icon.icns",
-  "background": "$(pwd)/resources/macos/appdmg.png",
-  "window": {
-    "position": {
-      "x": 360,
-      "y": 360
-    },
-    "size": {
-      "width": 480,
-      "height": 360
-    }
-  },
-  "contents": [
-    { "x": 144, "y": 248, "type": "file", "path": "$(pwd)/Lite XL.app" },
-    { "x": 336, "y": 248, "type": "link", "path": "/Applications" }
-  ]
-}
-EOF
-~/node_modules/appdmg/bin/appdmg.js lite-xl-dmg.json "$(pwd)/$1.dmg"
+dmgbuild -s resources/macos/lite-xl-dmg.py "Lite XL" "$1.dmg"

scripts/build.sh

@@ -181,7 +181,7 @@ main() {
     # download the subprojects so we can start patching before configure.
     # this will prevent reconfiguring the project.
     meson subprojects download
-    lua_subproject_path=$(echo subprojects/lua-*/)
+    lua_subproject_path="subprojects/$(awk -F ' *= *' '/directory/ { printf $2 }' subprojects/lua.wrap)"
     if [[ -d $lua_subproject_path ]]; then
       patch -d $lua_subproject_path -p1 --forward < resources/windows/001-lua-unicode.diff
     fi

scripts/innosetup/innosetup.iss.in

@@ -1,7 +1,7 @@
 #define MyAppName      "Lite XL"
 #define MyAppVersion   "@PROJECT_VERSION@"
 #define MyAppPublisher "Lite XL Team"
-#define MyAppURL       "https://lite-xl.github.io"
+#define MyAppURL       "https://lite-xl.com"
 #define MyAppExeName   "lite-xl.exe"
 #define BuildDir       "@PROJECT_BUILD_DIR@"
 #define SourceDir      "@PROJECT_SOURCE_DIR@"
@@ -57,9 +57,13 @@ OutputBaseFilename=LiteXL-{#MyAppVersion}-{#ArchInternal}-setup
 
 LicenseFile={#SourceDir}/LICENSE
 SetupIconFile={#SourceDir}/resources/icons/icon.ico
+UninstallDisplayIcon={app}\{#MyAppExeName}, 0
 WizardImageFile="{#SourceDir}/scripts/innosetup/wizard-modern-image.bmp"
 WizardSmallImageFile="{#SourceDir}/scripts/innosetup/litexl-55px.bmp"
 
+; Required for the add to path option to refresh environment
+ChangesEnvironment=yes
+
 [Languages]
 Name: "english"; MessagesFile: "compiler:Default.isl"
 
@@ -67,11 +71,10 @@ Name: "english"; MessagesFile: "compiler:Default.isl"
 Name: "desktopicon"; Description: "{cm:CreateDesktopIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked
 Name: "quicklaunchicon"; Description: "{cm:CreateQuickLaunchIcon}"; GroupDescription: "{cm:AdditionalIcons}"; Flags: unchecked; OnlyBelowVersion: 6.1; Check: not IsAdminInstallMode
 Name: "portablemode"; Description: "Portable Mode"; Flags: unchecked
+Name: "envPath"; Description: "Add lite-xl to the PATH variable, allowing it to be run from a command line."
 
 [Files]
-Source: "{#BuildDir}/src/lite-xl.exe"; DestDir: "{app}"; Flags: ignoreversion
-Source: "{#BuildDir}/mingwLibs{#Arch}/*"; DestDir: "{app}"; Flags: ignoreversion ; Check: DirExists(ExpandConstant('{#BuildDir}/mingwLibs{#Arch}'))
-Source: "{#SourceDir}/data/*"; DestDir: "{app}/data"; Flags: ignoreversion recursesubdirs
+Source: "{#SourceDir}/lite-xl/*"; DestDir: "{app}"; Flags: ignoreversion recursesubdirs
 ; NOTE: Don't use "Flags: ignoreversion" on any shared system files
 
 [Icons]
@@ -81,8 +84,78 @@ Name: "{group}\{cm:UninstallProgram,{#MyAppName}}"; Filename: "{uninstallexe}";
 Name: "{userappdata}\Microsoft\Internet Explorer\Quick Launch\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: quicklaunchicon; Check: not WizardIsTaskSelected('portablemode')
 ; Name: "{usersendto}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"
 
+[Registry]
+Root: "HKA"; Subkey: "Software\Classes\*\shell\{#MyAppName}"; ValueType: string; ValueName: ""; ValueData: "Open with {#MyAppName}"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\*\shell\{#MyAppName}"; ValueType: string; ValueName: "Icon"; ValueData: "{app}\{#MyAppExeName}, 0"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\*\shell\{#MyAppName}\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExename}""  ""%1"""; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\shell\{#MyAppName}"; ValueType: string; ValueName: ""; ValueData: "Open with {#MyAppName}"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\shell\{#MyAppName}"; ValueType: string; ValueName: "Icon"; ValueData: "{app}\{#MyAppExeName}, 0"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\shell\{#MyAppName}\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExename}""  ""%1"""; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\background\shell\{#MyAppName}"; ValueType: string; ValueName: ""; ValueData: "Open with {#MyAppName}"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\background\shell\{#MyAppName}"; ValueType: string; ValueName: "Icon"; ValueData: "{app}\{#MyAppExeName}, 0"; Flags: uninsdeletekey
+Root: "HKA"; Subkey: "Software\Classes\directory\background\shell\{#MyAppName}\command"; ValueType: string; ValueName: ""; ValueData: """{app}\{#MyAppExename}""  ""%V"""; Flags: uninsdeletekey
+
 [Run]
 Filename: "{app}/{#MyAppExeName}"; Description: "{cm:LaunchProgram,{#StringChange(MyAppName, '&', '&&')}}"; Flags: nowait postinstall skipifsilent
 
 [Setup]
 Uninstallable=not WizardIsTaskSelected('portablemode')
+
+; Code to add installation path to environment taken from:
+; https://stackoverflow.com/a/46609047
+[Code]
+const EnvironmentKey = 'SYSTEM\CurrentControlSet\Control\Session Manager\Environment';
+
+procedure EnvAddPath(Path: string);
+var
+  Paths: string;
+begin
+  { Retrieve current path (use empty string if entry not exists) }
+  if not RegQueryStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths)
+  then Paths := '';
+
+  { Skip if string already found in path }
+  if Pos(';' + Uppercase(Path) + ';', ';' + Uppercase(Paths) + ';') > 0 then exit;
+
+  { App string to the end of the path variable }
+  Paths := Paths + ';'+ Path +';'
+
+  { Overwrite (or create if missing) path environment variable }
+  if RegWriteStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths)
+  then Log(Format('The [%s] added to PATH: [%s]', [Path, Paths]))
+  else Log(Format('Error while adding the [%s] to PATH: [%s]', [Path, Paths]));
+end;
+
+procedure EnvRemovePath(Path: string);
+var
+  Paths: string;
+  P: Integer;
+begin
+  { Skip if registry entry not exists }
+  if not RegQueryStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths) then
+    exit;
+
+  { Skip if string not found in path }
+  P := Pos(';' + Uppercase(Path) + ';', ';' + Uppercase(Paths) + ';');
+  if P = 0 then exit;
+
+  { Update path variable }
+  Delete(Paths, P - 1, Length(Path) + 1);
+
+  { Overwrite path environment variable }
+  if RegWriteStringValue(HKEY_LOCAL_MACHINE, EnvironmentKey, 'Path', Paths)
+  then Log(Format('The [%s] removed from PATH: [%s]', [Path, Paths]))
+  else Log(Format('Error while removing the [%s] from PATH: [%s]', [Path, Paths]));
+end;
+
+procedure CurStepChanged(CurStep: TSetupStep);
+begin
+  if (CurStep = ssPostInstall) and WizardIsTaskSelected('envPath')
+  then EnvAddPath(ExpandConstant('{app}'));
+end;
+
+procedure CurUninstallStepChanged(CurUninstallStep: TUninstallStep);
+begin
+  if CurUninstallStep = usPostUninstall
+  then EnvRemovePath(ExpandConstant('{app}'));
+end;

scripts/install-dependencies.sh

@@ -57,9 +57,7 @@ main() {
     else
       brew install bash ninja sdl2
     fi
-    pip3 install meson
-    cd ~; npm install appdmg; cd -
-    ~/node_modules/appdmg/bin/appdmg.js --version
+    pip3 install meson dmgbuild
   elif [[ "$OSTYPE" == "msys" ]]; then
     if [[ $lhelper == true ]]; then
       pacman --noconfirm -S \

scripts/package.sh

@@ -25,7 +25,7 @@ show_help() {
   echo "-A --appimage                 Create an AppImage (Linux only)."
   echo "-B --binary                   Create a normal / portable package or macOS bundle,"
   echo "                              depending on how the build was configured. (Default.)"
-  echo "-D --dmg                      Create a DMG disk image with AppDMG (macOS only)."
+  echo "-D --dmg                      Create a DMG disk image with dmgbuild (macOS only)."
   echo "-I --innosetup                Create a InnoSetup package (Windows only)."
   echo "-r --release                  Strip debugging symbols."
   echo "-S --source                   Create a source code package,"
@@ -264,6 +264,11 @@ main() {
     $stripcmd "${exe_file}"
   fi
 
+  if [[ $bundle == true ]]; then
+    # https://eclecticlight.co/2019/01/17/code-signing-for-the-concerned-3-signing-an-app/
+    codesign --force --deep -s - "${dest_dir}"
+  fi
+
   echo "Creating a compressed archive ${package_name}"
   if [[ $binary == true ]]; then
     rm -f "${package_name}".tar.gz

src/api/dirmonitor.c

@@ -1,4 +1,5 @@
 #include "api.h"
+#include "lua.h"
 #include <SDL.h>
 #include <stdlib.h>
 #include <string.h>
@@ -25,13 +26,16 @@ int get_mode_dirmonitor();
 
 
 static int f_check_dir_callback(int watch_id, const char* path, void* L) {
-  lua_pushvalue(L, -1);
+  // using absolute indices from f_dirmonitor_check (2: callback, 3: error_callback)
+  lua_pushvalue(L, 2);
   if (path)
     lua_pushlstring(L, path, watch_id);
   else
     lua_pushnumber(L, watch_id);
-  lua_call(L, 1, 1);
-  int result = lua_toboolean(L, -1);
+
+  int result = 0;
+  if (lua_pcall(L, 1, 1, 3) == LUA_OK)
+    result = lua_toboolean(L, -1);
   lua_pop(L, 1);
   return !result;
 }
@@ -95,8 +99,20 @@ static int f_dirmonitor_unwatch(lua_State *L) {
 }
 
 
+static int f_noop(lua_State *L) { return 0; }
+
+
 static int f_dirmonitor_check(lua_State* L) {
   struct dirmonitor* monitor = luaL_checkudata(L, 1, API_TYPE_DIRMONITOR);
+  luaL_checktype(L, 2, LUA_TFUNCTION);
+  if (!lua_isnoneornil(L, 3)) {
+    luaL_checktype(L, 3, LUA_TFUNCTION);
+  } else {
+    lua_settop(L, 2);
+    lua_pushcfunction(L, f_noop);
+  }
+  lua_settop(L, 3);
+
   SDL_LockMutex(monitor->mutex);
   if (monitor->length < 0)
     lua_pushnil(L);

src/api/process.c

@@ -34,6 +34,8 @@
 typedef DWORD process_error_t;
 typedef HANDLE process_stream_t;
 typedef HANDLE process_handle_t;
+typedef wchar_t process_arglist_t[32767];
+typedef wchar_t *process_env_t;
 
 #define HANDLE_INVALID (INVALID_HANDLE_VALUE)
 #define PROCESS_GET_HANDLE(P) ((P)->process_information.hProcess)
@@ -45,12 +47,20 @@ static volatile long PipeSerialNumber;
 typedef int process_error_t;
 typedef int process_stream_t;
 typedef pid_t process_handle_t;
+typedef char **process_arglist_t;
+typedef char **process_env_t;
 
 #define HANDLE_INVALID (0)
 #define PROCESS_GET_HANDLE(P) ((P)->pid)
 
 #endif
 
+#ifdef __GNUC__
+#define UNUSED __attribute__((__unused__))
+#else
+#define UNUSED
+#endif
+
 typedef struct {
   bool running, detached;
   int returncode, deadline;
@@ -342,14 +352,248 @@ static bool signal_process(process_t* proc, signal_e sig) {
   return true;
 }
 
+
+static UNUSED char *xstrdup(const char *str) {
+  char *result = str ? malloc(strlen(str) + 1) : NULL;
+  if (result) strcpy(result, str);
+  return result;
+}
+
+
+static int process_arglist_init(process_arglist_t *list, size_t *list_len, size_t nargs) {
+  *list_len = 0;
+#ifdef _WIN32
+  memset(*list, 0, sizeof(process_arglist_t));
+#else
+  *list = calloc(sizeof(char *), nargs + 1);
+  if (!*list) return ENOMEM;
+#endif
+  return 0;
+}
+
+
+static int process_arglist_add(process_arglist_t *list, size_t *list_len, const char *arg, bool escape) {
+  size_t len = *list_len;
+#ifdef _WIN32
+  int arg_len;
+  wchar_t *cmdline = *list;
+  wchar_t arg_w[32767];
+  // this length includes the null terminator!
+  if (!(arg_len = MultiByteToWideChar(CP_UTF8, 0, arg, -1, arg_w, 32767)))
+    return GetLastError();
+  if (arg_len + len > 32767)
+    return ERROR_NOT_ENOUGH_MEMORY;
+
+  if (!escape) {
+    // replace the current null terminator with a space
+    if (len > 0) cmdline[len-1] = ' ';
+    memcpy(cmdline + len, arg_w, arg_len * sizeof(wchar_t));
+    len += arg_len;
+  } else {
+    // if the string contains spaces, then we must quote it
+    bool quote = wcspbrk(arg_w, L" \t\v\r\n");
+    int backslash = 0, escaped_len = quote ? 2 : 0;
+    for (int i = 0; i < arg_len; i++) {
+      if (arg_w[i] == L'\\') {
+        backslash++;
+      } else if (arg_w[i] == L'"') {
+        escaped_len += backslash + 1;
+        backslash = 0;
+      } else {
+        backslash = 0;
+      }
+      escaped_len++;
+    }
+    // escape_len contains NUL terminator
+    if (escaped_len + len > 32767)
+      return ERROR_NOT_ENOUGH_MEMORY;
+    // replace our previous NUL terminator with space
+    if (len > 0) cmdline[len-1] = L' ';
+    if (quote) cmdline[len++] = L'"';
+    // we are not going to iterate over NUL terminator
+    for (int i = 0;arg_w[i]; i++) {
+      if (arg_w[i] == L'\\') {
+        backslash++;
+      } else if (arg_w[i] == L'"') {
+        // add backslash + 1 backslashes
+        for (int j = 0; j < backslash; j++)
+          cmdline[len++] = L'\\';
+        cmdline[len++] = L'\\';
+        backslash = 0;
+      } else {
+        backslash = 0;
+      }
+      cmdline[len++] = arg_w[i];
+    }
+    if (quote) cmdline[len++] = L'"';
+    cmdline[len++] = L'\0';
+  }
+#else
+  char **cmd = *list;
+  cmd[len] = xstrdup(arg);
+  if (!cmd[len]) return ENOMEM;
+  len++;
+#endif
+  *list_len = len;
+  return 0;
+}
+
+
+static void process_arglist_free(process_arglist_t *list) {
+#ifndef _WIN32
+  char **cmd = *list;
+  for (int i = 0; cmd[i]; i++)
+    free(cmd[i]);
+  free(cmd);
+  *list = NULL;
+#endif
+}
+
+
+static int process_env_init(process_env_t *env_list, size_t *env_len, size_t nenv) {
+  *env_len = 0;
+#ifdef _WIN32
+  *env_list = NULL;
+#else
+  *env_list = calloc(sizeof(char *), nenv * 2);
+  if (!*env_list) return ENOMEM;
+#endif
+  return 0;
+}
+
+
+#ifdef _WIN32
+static int cmp_name(wchar_t *a, wchar_t *b) {
+  wchar_t _A[32767], _B[32767], *A = _A, *B = _B, *a_eq, *b_eq;
+  int na, nb, r;
+  a_eq = wcschr(a, L'=');
+  b_eq = wcschr(b, L'=');
+  assert(a_eq);
+  assert(b_eq);
+  na = a_eq - a;
+  nb = b_eq - b;
+  r = LCMapStringW(LOCALE_INVARIANT, LCMAP_UPPERCASE, a, na, A, na);
+  assert(r == na);
+  A[na] = L'\0';
+  r = LCMapStringW(LOCALE_INVARIANT, LCMAP_UPPERCASE, b, nb, B, nb);
+  assert(r == nb);
+  B[nb] = L'\0';
+
+  for (;;) {
+    wchar_t AA = *A++, BB = *B++;
+    if (AA > BB)
+      return 1;
+    else if (AA < BB)
+      return -1;
+    else if (!AA && !BB)
+      return 0;
+  }
+}
+
+
+static int process_env_add_variable(process_env_t *env_list, size_t *env_list_len, wchar_t *var, size_t var_len) {
+  wchar_t *list, *list_p;
+  size_t block_var_len, list_len;
+  list = list_p = *env_list;
+  list_len = *env_list_len;
+  if (list_len) {
+    // check if it is already in the block
+    while ((block_var_len = wcslen(list_p))) {
+      if (cmp_name(list_p, var) == 0)
+        return -1; // already installed
+      list_p += block_var_len + 1;
+    }
+  }
+  // allocate list + 1 characters for the block terminator
+  list = realloc(list, (list_len + var_len + 1) * sizeof(wchar_t));
+  if (!list) return ERROR_NOT_ENOUGH_MEMORY;
+  // copy the env variable to the block
+  memcpy(list + list_len, var, var_len * sizeof(wchar_t));
+  // terminate the block again
+  list[list_len + var_len] = L'\0';
+  *env_list = list;
+  *env_list_len = (list_len + var_len);
+  return 0;
+}
+
+
+static int process_env_add_system(process_env_t *env_list, size_t *env_list_len) {
+  int retval = 0;
+  wchar_t *proc_env_block, *proc_env_block_p;
+  int proc_env_len;
+
+  proc_env_block = proc_env_block_p = GetEnvironmentStringsW();
+  while ((proc_env_len = wcslen(proc_env_block_p))) {
+    // try to add it to the list
+    if ((retval = process_env_add_variable(env_list, env_list_len, proc_env_block_p, proc_env_len + 1)) > 0)
+      goto cleanup;
+    proc_env_block_p += proc_env_len + 1;
+  }
+  retval = 0;
+
+cleanup:
+  if (proc_env_block) FreeEnvironmentStringsW(proc_env_block);
+  return retval;
+}
+#endif
+
+
+static int process_env_add(process_env_t *env_list, size_t *env_len, const char *key, const char *value) {
+#ifdef _WIN32
+  wchar_t env_var[32767];
+  int r, var_len = 0;
+  if (!(r = MultiByteToWideChar(CP_UTF8, 0, key, -1, env_var, 32767)))
+    return GetLastError();
+  var_len += r;
+  env_var[var_len-1] = L'=';
+  if (!(r = MultiByteToWideChar(CP_UTF8, 0, value, -1, env_var + var_len, 32767 - var_len)))
+    return GetLastError();
+  var_len += r;
+  return process_env_add_variable(env_list, env_len, env_var, var_len);
+#else
+  (*env_list)[*env_len] = xstrdup(key);
+  if (!(*env_list)[*env_len])
+    return ENOMEM;
+  (*env_list)[*env_len + 1] = xstrdup(value);
+  if (!(*env_list)[*env_len + 1])
+    return ENOMEM;
+  *env_len += 2;
+#endif
+  return 0;
+}
+
+
+static void process_env_free(process_env_t *list) {
+  if (!*list) return;
+#ifdef _WIN32
+  free(*list);
+#else
+  for (size_t i = 0; (*list)[i]; i++) free((*list)[i]);
+  free(*list);
+#endif
+  *list = NULL;
+}
+
+
 static int process_start(lua_State* L) {
-  int retval = 1;
-  size_t env_len = 0, key_len, val_len;
-  const char *cmd[256] = { NULL }, *env_names[256] = { NULL }, *env_values[256] = { NULL }, *cwd = NULL;
-  bool detach = false, literal = false;
+  int r, retval = 1;
+  size_t env_len = 0, cmd_len = 0, arglist_len = 0, env_vars_len = 0;
+  process_arglist_t arglist;
+  process_env_t env_vars = NULL;
+  const char *cwd = NULL;
+  bool detach = false, escape = true;
   int deadline = 10, new_fds[3] = { STDIN_FD, STDOUT_FD, STDERR_FD };
-  size_t arg_len = lua_gettop(L), cmd_len;
-  if (lua_type(L, 1) == LUA_TTABLE) {
+
+  if (lua_isstring(L, 1)) {
+    escape = false;
+    // create a table that contains the string as the value
+    lua_createtable(L, 1, 0);
+    lua_pushvalue(L, 1);
+    lua_rawseti(L, -2, 1);
+    lua_replace(L, 1);
+  }
+
+  luaL_checktype(L, 1, LUA_TTABLE);
   #if LUA_VERSION_NUM > 501
     lua_len(L, 1);
   #else
@@ -357,36 +601,15 @@ static int process_start(lua_State* L) {
   #endif
   cmd_len = luaL_checknumber(L, -1); lua_pop(L, 1);
   if (!cmd_len)
-      // we have not allocated anything here yet, so we can skip cleanup code
-      // don't do this anywhere else!
-      return luaL_argerror(L, 1,"table cannot be empty");
+    return luaL_argerror(L, 1, "table cannot be empty");
+  // check if each arguments is a string
   for (size_t i = 1; i <= cmd_len; ++i) {
-      lua_pushinteger(L, i);
-      lua_rawget(L, 1);
-      cmd[i-1] = luaL_checkstring(L, -1);
-    }
-  } else {
-    literal = true;
-    cmd[0] = luaL_checkstring(L, 1);
-    cmd_len = 1;
+    lua_rawgeti(L, 1, i);
+    luaL_checkstring(L, -1);
+    lua_pop(L, 1);
   }
 
-  if (arg_len > 1) {
-    lua_getfield(L, 2, "env");
-    if (!lua_isnil(L, -1)) {
-      lua_pushnil(L);
-      while (lua_next(L, -2) != 0) {
-        const char* key = luaL_checklstring(L, -2, &key_len);
-        const char* val = luaL_checklstring(L, -1, &val_len);
-        env_names[env_len] = malloc(key_len+1);
-        strcpy((char*)env_names[env_len], key);
-        env_values[env_len] = malloc(val_len+1);
-        strcpy((char*)env_values[env_len], val);
-        lua_pop(L, 1);
-        ++env_len;
-      }
-    } else
-      lua_pop(L, 1);
+  if (lua_istable(L, 2)) {
     lua_getfield(L, 2, "detach");  detach = lua_toboolean(L, -1);
     lua_getfield(L, 2, "timeout"); deadline = luaL_optnumber(L, -1, deadline);
     lua_getfield(L, 2, "cwd");     cwd = luaL_optstring(L, -1, NULL);
@@ -394,12 +617,55 @@ static int process_start(lua_State* L) {
     lua_getfield(L, 2, "stdout");  new_fds[STDOUT_FD] = luaL_optnumber(L, -1, STDOUT_FD);
     lua_getfield(L, 2, "stderr");  new_fds[STDERR_FD] = luaL_optnumber(L, -1, STDERR_FD);
     for (int stream = STDIN_FD; stream <= STDERR_FD; ++stream) {
-      if (new_fds[stream] > STDERR_FD || new_fds[stream] < REDIRECT_PARENT) {
-        lua_pushfstring(L, "error: redirect to handles, FILE* and paths are not supported");
+      if (new_fds[stream] > STDERR_FD || new_fds[stream] < REDIRECT_PARENT)
+        return luaL_error(L, "error: redirect to handles, FILE* and paths are not supported");
+    }
+    lua_pop(L, 6); // pop all the values above
+
+    luaL_getsubtable(L, 2, "env");
+    // count environment variobles
+    lua_pushnil(L);
+    while (lua_next(L, -2) != 0) {
+      luaL_checkstring(L, -2);
+      luaL_checkstring(L, -1);
+      lua_pop(L, 1);
+      env_len++;
+    }
+
+    if (env_len) {
+      if ((r = process_env_init(&env_vars, &env_vars_len, env_len)) != 0) {
         retval = -1;
+        push_error(L, "cannot allocate environment list", r);
         goto cleanup;
       }
+
+      lua_pushnil(L);
+      while (lua_next(L, -2) != 0) {
+        if ((r = process_env_add(&env_vars, &env_vars_len, lua_tostring(L, -2), lua_tostring(L, -1))) != 0) {
+          retval = -1;
+          push_error(L, "cannot copy environment variable", r);
+          goto cleanup;
         }
+        lua_pop(L, 1);
+        env_len++;
+      }
+    }
+  }
+
+  // allocate and copy commands
+  if ((r = process_arglist_init(&arglist, &arglist_len, cmd_len)) != 0) {
+    retval = -1;
+    push_error(L, "cannot create argument list", r);
+    goto cleanup;
+  }
+  for (size_t i = 1; i <= cmd_len; i++) {
+    lua_rawgeti(L, 1, i);
+    if ((r = process_arglist_add(&arglist, &arglist_len, lua_tostring(L, -1), escape)) != 0) {
+      retval = -1;
+      push_error(L, "cannot add argument", r);
+      goto cleanup;
+    }
+    lua_pop(L, 1);
   }
 
   process_t* self = lua_newuserdata(L, sizeof(process_t));
@@ -408,6 +674,13 @@ static int process_start(lua_State* L) {
   self->deadline = deadline;
   self->detached = detach;
   #if _WIN32
+    if (env_vars) {
+      if ((r = process_env_add_system(&env_vars, &env_vars_len)) != 0) {
+        retval = -1;
+        push_error(L, "cannot add environment variable", r);
+        goto cleanup;
+      }
+    }
     for (int i = 0; i < 3; ++i) {
       switch (new_fds[i]) {
         case REDIRECT_PARENT:
@@ -458,7 +731,7 @@ static int process_start(lua_State* L) {
         self->child_pipes[i][1] = self->child_pipes[new_fds[i]][1];
       }
     }
-    STARTUPINFO siStartInfo;
+    STARTUPINFOW siStartInfo;
     memset(&self->process_information, 0, sizeof(self->process_information));
     memset(&siStartInfo, 0, sizeof(siStartInfo));
     siStartInfo.cb = sizeof(siStartInfo);
@@ -466,48 +739,10 @@ static int process_start(lua_State* L) {
     siStartInfo.hStdInput = self->child_pipes[STDIN_FD][0];
     siStartInfo.hStdOutput = self->child_pipes[STDOUT_FD][1];
     siStartInfo.hStdError = self->child_pipes[STDERR_FD][1];
-    char commandLine[32767] = { 0 }, environmentBlock[32767], wideEnvironmentBlock[32767*2];
-    int offset = 0;
-    if (!literal) {
-      for (size_t i = 0; i < cmd_len; ++i) {
-        size_t len = strlen(cmd[i]);
-        if (offset + len + 2 >= sizeof(commandLine)) break;
-        if (i > 0)
-          commandLine[offset++] = ' ';
-        commandLine[offset++] = '"';
-        int backslashCount = 0; // Yes, this is necessary.
-        for (size_t j = 0; j < len && offset + 2 + backslashCount < sizeof(commandLine); ++j) {
-          if (cmd[i][j] == '\\')
-            ++backslashCount;
-          else if (cmd[i][j] == '"') {
-            for (size_t k = 0; k < backslashCount; ++k)
-              commandLine[offset++] = '\\';
-            commandLine[offset++] = '\\';
-            backslashCount = 0;
-          } else
-            backslashCount = 0;
-          commandLine[offset++] = cmd[i][j];
-        }
-        if (offset + 1 + backslashCount >= sizeof(commandLine)) break;
-        for (size_t k = 0; k < backslashCount; ++k)
-          commandLine[offset++] = '\\';
-        commandLine[offset++] = '"';
-      }
-      commandLine[offset] = 0;
-    } else {
-      strncpy(commandLine, cmd[0], sizeof(commandLine));
-    }
-    offset = 0;
-    for (size_t i = 0; i < env_len; ++i) {
-      if (offset + strlen(env_values[i]) + strlen(env_names[i]) + 1 >= sizeof(environmentBlock))
-        break;
-      offset += snprintf(&environmentBlock[offset], sizeof(environmentBlock) - offset, "%s=%s", env_names[i], env_values[i]);
-      environmentBlock[offset++] = 0;
-    }
-    environmentBlock[offset++] = 0;
-    if (env_len > 0)
-      MultiByteToWideChar(CP_UTF8, MB_PRECOMPOSED, environmentBlock, offset, (LPWSTR)wideEnvironmentBlock, sizeof(wideEnvironmentBlock));
-    if (!CreateProcess(NULL, commandLine, NULL, NULL, true, (detach ? DETACHED_PROCESS : CREATE_NO_WINDOW) | CREATE_UNICODE_ENVIRONMENT, env_len > 0 ? wideEnvironmentBlock : NULL, cwd, &siStartInfo, &self->process_information)) {
+    wchar_t cwd_w[MAX_PATH];
+    if (cwd) // TODO: error handling
+      MultiByteToWideChar(CP_UTF8, 0, cwd, -1, cwd_w, MAX_PATH);
+    if (!CreateProcessW(NULL, arglist, NULL, NULL, true, (detach ? DETACHED_PROCESS : CREATE_NO_WINDOW) | CREATE_UNICODE_ENVIRONMENT, env_vars, cwd ? cwd_w : NULL, &siStartInfo, &self->process_information)) {
       push_error(L, NULL, GetLastError());
       retval = -1;
       goto cleanup;
@@ -555,9 +790,9 @@ static int process_start(lua_State* L) {
         close(self->child_pipes[stream][stream == STDIN_FD ? 1 : 0]);
       }
       size_t set;
-      for (set = 0; set < env_len && setenv(env_names[set], env_values[set], 1) == 0; ++set);
-      if (set == env_len && (!detach || setsid() != -1) && (!cwd || chdir(cwd) != -1))
-        execvp(cmd[0], (char** const)cmd);
+      for (set = 0; set < env_vars_len && setenv(env_vars[set], env_vars[set+1], 1) == 0; set += 2);
+      if (set == env_vars_len && (!detach || setsid() != -1) && (!cwd || chdir(cwd) != -1))
+        execvp(arglist[0], (char** const)arglist);
       write(control_pipe[1], &errno, sizeof(errno));
       _exit(-1);
     }
@@ -591,16 +826,15 @@ static int process_start(lua_State* L) {
     if (control_pipe[0]) close(control_pipe[0]);
     if (control_pipe[1]) close(control_pipe[1]);
   #endif
-  for (size_t i = 0; i < env_len; ++i) {
-    free((char*)env_names[i]);
-    free((char*)env_values[i]);
-  }
   for (int stream = 0; stream < 3; ++stream) {
     process_stream_t* pipe = &self->child_pipes[stream][stream == STDIN_FD ? 0 : 1];
     if (*pipe) {
       close_fd(pipe);
     }
   }
+  process_arglist_free(&arglist);
+  process_env_free(&env_vars);
+
   if (retval == -1)
     return lua_error(L);
 
@@ -741,6 +975,10 @@ static int self_signal(lua_State* L, signal_e sig) {
 static int f_terminate(lua_State* L) { return self_signal(L, SIGNAL_TERM); }
 static int f_kill(lua_State* L) { return self_signal(L, SIGNAL_KILL); }
 static int f_interrupt(lua_State* L) { return self_signal(L, SIGNAL_INTERRUPT); }
+<<<<<<< HEAD
+=======
+
+>>>>>>> master
 static int f_gc(lua_State* L) {
   process_kill_list_t *list = NULL;
   process_kill_t *p = NULL;

src/api/renderer.c

@@ -90,7 +90,7 @@ static int f_font_load(lua_State *L) {
     return ret_code;
 
   RenFont** font = lua_newuserdata(L, sizeof(RenFont*));
-  *font = ren_font_load(&window_renderer, filename, size, antialiasing, hinting, style);
+  *font = ren_font_load(window_renderer, filename, size, antialiasing, hinting, style);
   if (!*font)
     return luaL_error(L, "failed to load font");
   luaL_setmetatable(L, API_TYPE_FONT);
@@ -130,7 +130,7 @@ static int f_font_copy(lua_State *L) {
   }
   for (int i = 0; i < FONT_FALLBACK_MAX && fonts[i]; ++i) {
     RenFont** font = lua_newuserdata(L, sizeof(RenFont*));
-    *font = ren_font_copy(&window_renderer, fonts[i], size, antialiasing, hinting, style);
+    *font = ren_font_copy(window_renderer, fonts[i], size, antialiasing, hinting, style);
     if (!*font)
       return luaL_error(L, "failed to copy font");
     luaL_setmetatable(L, API_TYPE_FONT);
@@ -198,7 +198,7 @@ static int f_font_get_width(lua_State *L) {
   size_t len;
   const char *text = luaL_checklstring(L, 2, &len);
 
-  lua_pushnumber(L, ren_font_group_get_width(&window_renderer, fonts, text, len));
+  lua_pushnumber(L, ren_font_group_get_width(window_renderer, fonts, text, len, NULL));
   return 1;
 }
 
@@ -217,7 +217,7 @@ static int f_font_get_size(lua_State *L) {
 static int f_font_set_size(lua_State *L) {
   RenFont* fonts[FONT_FALLBACK_MAX]; font_retrieve(L, fonts, 1);
   float size = luaL_checknumber(L, 2);
-  ren_font_group_set_size(&window_renderer, fonts, size);
+  ren_font_group_set_size(window_renderer, fonts, size);
   return 0;
 }
 
@@ -276,7 +276,7 @@ static int f_show_debug(lua_State *L) {
 
 static int f_get_size(lua_State *L) {
   int w, h;
-  ren_get_size(&window_renderer, &w, &h);
+  ren_get_size(window_renderer, &w, &h);
   lua_pushnumber(L, w);
   lua_pushnumber(L, h);
   return 2;
@@ -284,13 +284,13 @@ static int f_get_size(lua_State *L) {
 
 
 static int f_begin_frame(UNUSED lua_State *L) {
-  rencache_begin_frame(&window_renderer);
+  rencache_begin_frame(window_renderer);
   return 0;
 }
 
 
 static int f_end_frame(UNUSED lua_State *L) {
-  rencache_end_frame(&window_renderer);
+  rencache_end_frame(window_renderer);
   // clear the font reference table
   lua_newtable(L);
   lua_rawseti(L, LUA_REGISTRYINDEX, RENDERER_FONT_REF);
@@ -311,7 +311,7 @@ static int f_set_clip_rect(lua_State *L) {
   lua_Number w = luaL_checknumber(L, 3);
   lua_Number h = luaL_checknumber(L, 4);
   RenRect rect = rect_to_grid(x, y, w, h);
-  rencache_set_clip_rect(&window_renderer, rect);
+  rencache_set_clip_rect(window_renderer, rect);
   return 0;
 }
 
@@ -323,7 +323,7 @@ static int f_draw_rect(lua_State *L) {
   lua_Number h = luaL_checknumber(L, 4);
   RenRect rect = rect_to_grid(x, y, w, h);
   RenColor color = checkcolor(L, 5, 255);
-  rencache_draw_rect(&window_renderer, rect, color);
+  rencache_draw_rect(window_renderer, rect, color);
   return 0;
 }
 
@@ -348,7 +348,7 @@ static int f_draw_text(lua_State *L) {
   double x = luaL_checknumber(L, 3);
   int y = luaL_checknumber(L, 4);
   RenColor color = checkcolor(L, 5, 255);
-  x = rencache_draw_text(&window_renderer, fonts, text, len, x, y, color);
+  x = rencache_draw_text(window_renderer, fonts, text, len, x, y, color);
   lua_pushnumber(L, x);
   return 1;
 }

src/api/system.c

@@ -78,7 +78,7 @@ static SDL_HitTestResult SDLCALL hit_test(SDL_Window *window, const SDL_Point *p
   const int controls_width = hit_info->controls_width;
   int w, h;
 
-  SDL_GetWindowSize(window_renderer.window, &w, &h);
+  SDL_GetWindowSize(window_renderer->window, &w, &h);
 
   if (pt->y < hit_info->title_height &&
     #if RESIZE_FROM_TOP
@@ -197,7 +197,7 @@ top:
 
     case SDL_WINDOWEVENT:
       if (e.window.event == SDL_WINDOWEVENT_RESIZED) {
-        ren_resize_window(&window_renderer);
+        ren_resize_window(window_renderer);
         lua_pushstring(L, "resized");
         /* The size below will be in points. */
         lua_pushinteger(L, e.window.data1);
@@ -236,8 +236,8 @@ top:
       SDL_GetMouseState(&mx, &my);
       lua_pushstring(L, "filedropped");
       lua_pushstring(L, e.drop.file);
-      lua_pushinteger(L, mx);
-      lua_pushinteger(L, my);
+      lua_pushinteger(L, mx * window_renderer->scale_x);
+      lua_pushinteger(L, my * window_renderer->scale_y);
       SDL_free(e.drop.file);
       return 4;
 
@@ -294,8 +294,8 @@ top:
       if (e.button.button == 1) { SDL_CaptureMouse(1); }
       lua_pushstring(L, "mousepressed");
       lua_pushstring(L, button_name(e.button.button));
-      lua_pushinteger(L, e.button.x);
-      lua_pushinteger(L, e.button.y);
+      lua_pushinteger(L, e.button.x * window_renderer->scale_x);
+      lua_pushinteger(L, e.button.y * window_renderer->scale_y);
       lua_pushinteger(L, e.button.clicks);
       return 5;
 
@@ -303,8 +303,8 @@ top:
       if (e.button.button == 1) { SDL_CaptureMouse(0); }
       lua_pushstring(L, "mousereleased");
       lua_pushstring(L, button_name(e.button.button));
-      lua_pushinteger(L, e.button.x);
-      lua_pushinteger(L, e.button.y);
+      lua_pushinteger(L, e.button.x * window_renderer->scale_x);
+      lua_pushinteger(L, e.button.y * window_renderer->scale_y);
       return 4;
 
     case SDL_MOUSEMOTION:
@@ -316,10 +316,10 @@ top:
         e.motion.yrel += event_plus.motion.yrel;
       }
       lua_pushstring(L, "mousemoved");
-      lua_pushinteger(L, e.motion.x);
-      lua_pushinteger(L, e.motion.y);
-      lua_pushinteger(L, e.motion.xrel);
-      lua_pushinteger(L, e.motion.yrel);
+      lua_pushinteger(L, e.motion.x * window_renderer->scale_x);
+      lua_pushinteger(L, e.motion.y * window_renderer->scale_y);
+      lua_pushinteger(L, e.motion.xrel * window_renderer->scale_x);
+      lua_pushinteger(L, e.motion.yrel * window_renderer->scale_y);
       return 5;
 
     case SDL_MOUSEWHEEL:
@@ -335,7 +335,7 @@ top:
       return 3;
 
       case SDL_FINGERDOWN:
-      SDL_GetWindowSize(window_renderer.window, &w, &h);
+      SDL_GetWindowSize(window_renderer->window, &w, &h);
 
       lua_pushstring(L, "touchpressed");
       lua_pushinteger(L, (lua_Integer)(e.tfinger.x * w));
@@ -344,7 +344,7 @@ top:
       return 4;
 
     case SDL_FINGERUP:
-      SDL_GetWindowSize(window_renderer.window, &w, &h);
+      SDL_GetWindowSize(window_renderer->window, &w, &h);
 
       lua_pushstring(L, "touchreleased");
       lua_pushinteger(L, (lua_Integer)(e.tfinger.x * w));
@@ -360,7 +360,7 @@ top:
         e.tfinger.dx += event_plus.tfinger.dx;
         e.tfinger.dy += event_plus.tfinger.dy;
       }
-      SDL_GetWindowSize(window_renderer.window, &w, &h);
+      SDL_GetWindowSize(window_renderer->window, &w, &h);
 
       lua_pushstring(L, "touchmoved");
       lua_pushinteger(L, (lua_Integer)(e.tfinger.x * w));
@@ -374,7 +374,7 @@ top:
       #ifdef LITE_USE_SDL_RENDERER
         rencache_invalidate();
       #else
-        SDL_UpdateWindowSurface(window_renderer.window);
+        SDL_UpdateWindowSurface(window_renderer->window);
       #endif
       lua_pushstring(L, e.type == SDL_APP_WILLENTERFOREGROUND ? "enteringforeground" : "enteredforeground");
       return 1;
@@ -397,6 +397,7 @@ static int f_wait_event(lua_State *L) {
   int nargs = lua_gettop(L);
   if (nargs >= 1) {
     double n = luaL_checknumber(L, 1);
+    if (n < 0) n = 0;
     lua_pushboolean(L, SDL_WaitEventTimeout(NULL, n * 1000));
   } else {
     lua_pushboolean(L, SDL_WaitEvent(NULL));
@@ -439,7 +440,7 @@ static int f_set_cursor(lua_State *L) {
 
 static int f_set_window_title(lua_State *L) {
   const char *title = luaL_checkstring(L, 1);
-  SDL_SetWindowTitle(window_renderer.window, title);
+  SDL_SetWindowTitle(window_renderer->window, title);
   return 0;
 }
 
@@ -449,39 +450,39 @@ enum { WIN_NORMAL, WIN_MINIMIZED, WIN_MAXIMIZED, WIN_FULLSCREEN };
 
 static int f_set_window_mode(lua_State *L) {
   int n = luaL_checkoption(L, 1, "normal", window_opts);
-  SDL_SetWindowFullscreen(window_renderer.window,
+  SDL_SetWindowFullscreen(window_renderer->window,
     n == WIN_FULLSCREEN ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
-  if (n == WIN_NORMAL) { SDL_RestoreWindow(window_renderer.window); }
-  if (n == WIN_MAXIMIZED) { SDL_MaximizeWindow(window_renderer.window); }
-  if (n == WIN_MINIMIZED) { SDL_MinimizeWindow(window_renderer.window); }
+  if (n == WIN_NORMAL) { SDL_RestoreWindow(window_renderer->window); }
+  if (n == WIN_MAXIMIZED) { SDL_MaximizeWindow(window_renderer->window); }
+  if (n == WIN_MINIMIZED) { SDL_MinimizeWindow(window_renderer->window); }
   return 0;
 }
 
 
 static int f_set_window_bordered(lua_State *L) {
   int bordered = lua_toboolean(L, 1);
-  SDL_SetWindowBordered(window_renderer.window, bordered);
+  SDL_SetWindowBordered(window_renderer->window, bordered);
   return 0;
 }
 
 
 static int f_set_window_hit_test(lua_State *L) {
   if (lua_gettop(L) == 0) {
-    SDL_SetWindowHitTest(window_renderer.window, NULL, NULL);
+    SDL_SetWindowHitTest(window_renderer->window, NULL, NULL);
     return 0;
   }
   window_hit_info->title_height = luaL_checknumber(L, 1);
   window_hit_info->controls_width = luaL_checknumber(L, 2);
   window_hit_info->resize_border = luaL_checknumber(L, 3);
-  SDL_SetWindowHitTest(window_renderer.window, hit_test, window_hit_info);
+  SDL_SetWindowHitTest(window_renderer->window, hit_test, window_hit_info);
   return 0;
 }
 
 
 static int f_get_window_size(lua_State *L) {
   int x, y, w, h;
-  SDL_GetWindowSize(window_renderer.window, &w, &h);
-  SDL_GetWindowPosition(window_renderer.window, &x, &y);
+  SDL_GetWindowSize(window_renderer->window, &w, &h);
+  SDL_GetWindowPosition(window_renderer->window, &x, &y);
   lua_pushinteger(L, w);
   lua_pushinteger(L, h);
   lua_pushinteger(L, x);
@@ -495,22 +496,22 @@ static int f_set_window_size(lua_State *L) {
   double h = luaL_checknumber(L, 2);
   double x = luaL_checknumber(L, 3);
   double y = luaL_checknumber(L, 4);
-  SDL_SetWindowSize(window_renderer.window, w, h);
-  SDL_SetWindowPosition(window_renderer.window, x, y);
-  ren_resize_window(&window_renderer);
+  SDL_SetWindowSize(window_renderer->window, w, h);
+  SDL_SetWindowPosition(window_renderer->window, x, y);
+  ren_resize_window(window_renderer);
   return 0;
 }
 
 
 static int f_window_has_focus(lua_State *L) {
-  unsigned flags = SDL_GetWindowFlags(window_renderer.window);
+  unsigned flags = SDL_GetWindowFlags(window_renderer->window);
   lua_pushboolean(L, flags & SDL_WINDOW_INPUT_FOCUS);
   return 1;
 }
 
 
 static int f_get_window_mode(lua_State *L) {
-  unsigned flags = SDL_GetWindowFlags(window_renderer.window);
+  unsigned flags = SDL_GetWindowFlags(window_renderer->window);
   if (flags & SDL_WINDOW_FULLSCREEN_DESKTOP) {
     lua_pushstring(L, "fullscreen");
   } else if (flags & SDL_WINDOW_MINIMIZED) {
@@ -548,8 +549,8 @@ static int f_raise_window(lua_State *L) {
     to allow the window to be focused. Also on wayland the raise window event
     may not always be obeyed.
   */
-  SDL_SetWindowInputFocus(window_renderer.window);
-  SDL_RaiseWindow(window_renderer.window);
+  SDL_SetWindowInputFocus(window_renderer->window);
+  SDL_RaiseWindow(window_renderer->window);
   return 0;
 }
 
@@ -876,6 +877,7 @@ static int f_get_time(lua_State *L) {
 
 static int f_sleep(lua_State *L) {
   double n = luaL_checknumber(L, 1);
+  if (n < 0) n = 0;
   SDL_Delay(n * 1000);
   return 0;
 }
@@ -929,7 +931,7 @@ static int f_fuzzy_match(lua_State *L) {
 
 static int f_set_window_opacity(lua_State *L) {
   double n = luaL_checknumber(L, 1);
-  int r = SDL_SetWindowOpacity(window_renderer.window, n);
+  int r = SDL_SetWindowOpacity(window_renderer->window, n);
   lua_pushboolean(L, r > -1);
   return 1;
 }
@@ -1071,7 +1073,7 @@ static int f_load_native_plugin(lua_State *L) {
 #endif
 
 /* Special purpose filepath compare function. Corresponds to the
-   order used in the TreeView view of the project's files. Returns true iff
+   order used in the TreeView view of the project's files. Returns true if
    path1 < path2 in the TreeView order. */
 static int f_path_compare(lua_State *L) {
   size_t len1, len2;

src/main.c

@@ -35,16 +35,6 @@
 
 static SDL_Window *window;
 
-static double get_scale(void) {
-#ifndef __APPLE__
-  float dpi;
-  if (SDL_GetDisplayDPI(0, NULL, &dpi, NULL) == 0)
-    return dpi / 96.0;
-#endif
-  return 1.0;
-}
-
-
 static void get_exe_filename(char *buf, int sz) {
 #if _WIN32
   int len;
@@ -204,6 +194,8 @@ int main(int argc, char **argv) {
   SDL_SetHint("SDL_MOUSE_DOUBLE_CLICK_RADIUS", "4");
 #endif
 
+  SDL_SetHint(SDL_HINT_RENDER_DRIVER, "software");
+
   SDL_DisplayMode dm;
   SDL_GetCurrentDisplayMode(0, &dm);
 
@@ -217,7 +209,7 @@ int main(int argc, char **argv) {
     fprintf(stderr, "Error creating lite-xl window: %s", SDL_GetError());
     exit(1);
   }
-  ren_init(window);
+  window_renderer = ren_init(window);
 
   lua_State *L;
 init_lua:
@@ -239,9 +231,6 @@ init_lua:
   lua_pushstring(L, LITE_ARCH_TUPLE);
   lua_setglobal(L, "ARCH");
 
-  lua_pushnumber(L, get_scale());
-  lua_setglobal(L, "SCALE");
-
   char exename[2048];
   get_exe_filename(exename, sizeof(exename));
   if (*exename) {
@@ -314,7 +303,7 @@ init_lua:
 
   // This allows the window to be destroyed before lite-xl is done with
   // reaping child processes
-  ren_free_window_resources(&window_renderer);
+  ren_free(window_renderer);
   lua_close(L);
 
 #if defined(__amigaos4__)

src/rencache.c

@@ -191,8 +191,9 @@ void rencache_draw_rect(RenWindow *window_renderer, RenRect rect, RenColor color
 
 double rencache_draw_text(RenWindow *window_renderer, RenFont **fonts, const char *text, size_t len, double x, int y, RenColor color)
 {
-  double width = ren_font_group_get_width(window_renderer, fonts, text, len);
-  RenRect rect = { x, y, (int)width, ren_font_group_get_height(fonts) };
+  int x_offset;
+  double width = ren_font_group_get_width(window_renderer, fonts, text, len, &x_offset);
+  RenRect rect = { x + x_offset, y, (int)(width - x_offset), ren_font_group_get_height(fonts) };
   if (rects_overlap(last_clip_rect, rect)) {
     int sz = len + 1;
     DrawTextCommand *cmd = push_command(window_renderer, DRAW_TEXT, sizeof(DrawTextCommand) + sz);

src/renderer.c

@@ -22,7 +22,7 @@
 #define MAX_LOADABLE_GLYPHSETS (MAX_UNICODE / GLYPHSET_SIZE)
 #define SUBPIXEL_BITMAPS_CACHED 3
 
-RenWindow window_renderer = {0};
+RenWindow* window_renderer = NULL;
 static FT_Library library;
 
 // draw_rect_surface is used as a 1x1 surface to simplify ren_draw_rect with blending
@@ -167,7 +167,7 @@ static void font_load_glyphset(RenFont* font, int idx) {
           for (unsigned int column = 0; column < slot->bitmap.width; ++column) {
             int current_source_offset = source_offset + (column / 8);
             int source_pixel = slot->bitmap.buffer[current_source_offset];
-            pixels[++target_offset] = ((source_pixel >> (7 - (column % 8))) & 0x1) << 7;
+            pixels[++target_offset] = ((source_pixel >> (7 - (column % 8))) & 0x1) * 0xFF;
           }
         } else
           memcpy(&pixels[target_offset], &slot->bitmap.buffer[source_offset], slot->bitmap.width);
@@ -348,10 +348,11 @@ int ren_font_group_get_height(RenFont **fonts) {
   return fonts[0]->height;
 }
 
-double ren_font_group_get_width(RenWindow *window_renderer, RenFont **fonts, const char *text, size_t len) {
+double ren_font_group_get_width(RenWindow *window_renderer, RenFont **fonts, const char *text, size_t len, int *x_offset) {
   double width = 0;
   const char* end = text + len;
   GlyphMetric* metric = NULL; GlyphSet* set = NULL;
+  bool set_x_offset = x_offset == NULL;
   while (text < end) {
     unsigned int codepoint;
     text = utf8_to_codepoint(text, &codepoint);
@@ -359,8 +360,15 @@ double ren_font_group_get_width(RenWindow *window_renderer, RenFont **fonts, con
     if (!metric)
       break;
     width += (!font || metric->xadvance) ? metric->xadvance : fonts[0]->space_advance;
+    if (!set_x_offset) {
+      set_x_offset = true;
+      *x_offset = metric->bitmap_left; // TODO: should this be scaled by the surface scale?
+    }
   }
   const int surface_scale = renwin_get_surface(window_renderer).scale;
+  if (!set_x_offset) {
+    *x_offset = 0;
+  }
   return width / surface_scale;
 }
 
@@ -493,33 +501,38 @@ void ren_draw_rect(RenSurface *rs, RenRect rect, RenColor color) {
 }
 
 /*************** Window Management ****************/
-void ren_free_window_resources(RenWindow *window_renderer) {
+RenWindow* ren_init(SDL_Window *win) {
+  assert(win);
+  int error = FT_Init_FreeType( &library );
+  if ( error ) {
+    fprintf(stderr, "internal font error when starting the application\n");
+    return NULL;
+  }
+  RenWindow* window_renderer = malloc(sizeof(RenWindow));
+
+  window_renderer->window = win;
+  renwin_init_surface(window_renderer);
+  renwin_init_command_buf(window_renderer);
+  renwin_clip_to_surface(window_renderer);
+  draw_rect_surface = SDL_CreateRGBSurface(0, 1, 1, 32,
+                       0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
+
+  return window_renderer;
+}
+
+void ren_free(RenWindow* window_renderer) {
+  assert(window_renderer);
   renwin_free(window_renderer);
   SDL_FreeSurface(draw_rect_surface);
   free(window_renderer->command_buf);
   window_renderer->command_buf = NULL;
   window_renderer->command_buf_size = 0;
+  free(window_renderer);
 }
 
-// TODO remove global and return RenWindow*
-void ren_init(SDL_Window *win) {
-  assert(win);
-  int error = FT_Init_FreeType( &library );
-  if ( error ) {
-    fprintf(stderr, "internal font error when starting the application\n");
-    return;
-  }
-  window_renderer.window = win;
-  renwin_init_surface(&window_renderer);
-  renwin_init_command_buf(&window_renderer);
-  renwin_clip_to_surface(&window_renderer);
-  draw_rect_surface = SDL_CreateRGBSurface(0, 1, 1, 32,
-                       0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF);
-}
-
-
 void ren_resize_window(RenWindow *window_renderer) {
   renwin_resize_surface(window_renderer);
+  renwin_update_scale(window_renderer);
 }
 
 

src/renderer.h

@@ -23,7 +23,7 @@ typedef struct { SDL_Surface *surface; int scale; } RenSurface;
 
 struct RenWindow;
 typedef struct RenWindow RenWindow;
-extern RenWindow window_renderer;
+extern RenWindow* window_renderer;
 
 RenFont* ren_font_load(RenWindow *window_renderer, const char *filename, float size, ERenFontAntialiasing antialiasing, ERenFontHinting hinting, unsigned char style);
 RenFont* ren_font_copy(RenWindow *window_renderer, RenFont* font, float size, ERenFontAntialiasing antialiasing, ERenFontHinting hinting, int style);
@@ -34,17 +34,17 @@ int ren_font_group_get_height(RenFont **font);
 float ren_font_group_get_size(RenFont **font);
 void ren_font_group_set_size(RenWindow *window_renderer, RenFont **font, float size);
 void ren_font_group_set_tab_size(RenFont **font, int n);
-double ren_font_group_get_width(RenWindow *window_renderer, RenFont **font, const char *text, size_t len);
+double ren_font_group_get_width(RenWindow *window_renderer, RenFont **font, const char *text, size_t len, int *x_offset);
 double ren_draw_text(RenSurface *rs, RenFont **font, const char *text, size_t len, float x, int y, RenColor color);
 
 void ren_draw_rect(RenSurface *rs, RenRect rect, RenColor color);
 
-void ren_init(SDL_Window *win);
+RenWindow* ren_init(SDL_Window *win);
+void ren_free(RenWindow* window_renderer);
 void ren_resize_window(RenWindow *window_renderer);
 void ren_update_rects(RenWindow *window_renderer, RenRect *rects, int count);
 void ren_set_clip_rect(RenWindow *window_renderer, RenRect rect);
 void ren_get_size(RenWindow *window_renderer, int *x, int *y); /* Reports the size in points. */
-void ren_free_window_resources(RenWindow *window_renderer);
 
 
 #endif

src/renwindow.c

@@ -41,7 +41,8 @@ static void setup_renderer(RenWindow *ren, int w, int h) {
 #endif
 
 
-void renwin_init_surface(UNUSED RenWindow *ren) {
+void renwin_init_surface(RenWindow *ren) {
+  ren->scale_x = ren->scale_y = 1;
 #ifdef LITE_USE_SDL_RENDERER
   if (ren->rensurface.surface) {
     SDL_FreeSurface(ren->rensurface.surface);
@@ -107,6 +108,16 @@ void renwin_resize_surface(UNUSED RenWindow *ren) {
 #endif
 }
 
+void renwin_update_scale(RenWindow *ren) {
+#ifndef LITE_USE_SDL_RENDERER
+  SDL_Surface *surface = SDL_GetWindowSurface(ren->window);
+  int window_w = surface->w, window_h = surface->h;
+  SDL_GetWindowSize(ren->window, &window_w, &window_h);
+  ren->scale_x = (float)surface->w / window_w;
+  ren->scale_y = (float)surface->h / window_h;
+#endif
+}
+
 void renwin_show_window(RenWindow *ren) {
   SDL_ShowWindow(ren->window);
 }

src/renwindow.h

@@ -6,6 +6,8 @@ struct RenWindow {
   uint8_t *command_buf;
   size_t command_buf_idx;
   size_t command_buf_size;
+  float scale_x;
+  float scale_y;
 #ifdef LITE_USE_SDL_RENDERER
   SDL_Renderer *renderer;
   SDL_Texture *texture;
@@ -19,6 +21,7 @@ void renwin_init_command_buf(RenWindow *ren);
 void renwin_clip_to_surface(RenWindow *ren);
 void renwin_set_clip_rect(RenWindow *ren, RenRect rect);
 void renwin_resize_surface(RenWindow *ren);
+void renwin_update_scale(RenWindow *ren);
 void renwin_show_window(RenWindow *ren);
 void renwin_update_rects(RenWindow *ren, RenRect *rects, int count);
 void renwin_free(RenWindow *ren);

subprojects/freetype2.wrap

@@ -1,9 +1,10 @@
 [wrap-file]
-directory = freetype-2.12.1
-source_url = https://download.savannah.gnu.org/releases/freetype/freetype-2.12.1.tar.xz
-source_filename = freetype-2.12.1.tar.xz
-source_hash = 4766f20157cc4cf0cd292f80bf917f92d1c439b243ac3018debf6b9140c41a7f
-wrapdb_version = 2.12.1-2
+directory = freetype-2.13.2
+source_url = https://download.savannah.gnu.org/releases/freetype/freetype-2.13.2.tar.xz
+source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/freetype2_2.13.2-1/freetype-2.13.2.tar.xz
+source_filename = freetype-2.13.2.tar.xz
+source_hash = 12991c4e55c506dd7f9b765933e62fd2be2e06d421505d7950a132e4f1bb484d
+wrapdb_version = 2.13.2-1
 
 [provide]
 freetype2 = freetype_dep

subprojects/lua.wrap

@@ -1,12 +1,14 @@
 [wrap-file]
-directory = lua-5.4.4
-source_url = https://www.lua.org/ftp/lua-5.4.4.tar.gz
-source_filename = lua-5.4.4.tar.gz
-source_hash = 164c7849653b80ae67bec4b7473b884bf5cc8d2dca05653475ec2ed27b9ebf61
-patch_filename = lua_5.4.4-1_patch.zip
-patch_url = https://wrapdb.mesonbuild.com/v2/lua_5.4.4-1/get_patch
-patch_hash = e61cd965c629d6543176f41a9f1cb9050edfd1566cf00ce768ff211086e40bdc
+directory = lua-5.4.6
+source_url = https://www.lua.org/ftp/lua-5.4.6.tar.gz
+source_filename = lua-5.4.6.tar.gz
+source_hash = 7d5ea1b9cb6aa0b59ca3dde1c6adcb57ef83a1ba8e5432c0ecd06bf439b3ad88
+patch_filename = lua_5.4.6-3_patch.zip
+patch_url = https://wrapdb.mesonbuild.com/v2/lua_5.4.6-3/get_patch
+patch_hash = 9b72a95422fd47f79f969d9abdb589ee95712d5512a5246f94e7e4f63d2cb7b7
+source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/lua_5.4.6-3/lua-5.4.6.tar.gz
+wrapdb_version = 5.4.6-3
 
 [provide]
 lua-5.4 = lua_dep
-
+lua = lua_dep

subprojects/pcre2.wrap

@@ -1,12 +1,13 @@
 [wrap-file]
 directory = pcre2-10.42
-source_url = https://github.com/PhilipHazel/pcre2/releases/download/pcre2-10.42/pcre2-10.42.tar.bz2
+source_url = https://github.com/PCRE2Project/pcre2/releases/download/pcre2-10.42/pcre2-10.42.tar.bz2
 source_filename = pcre2-10.42.tar.bz2
 source_hash = 8d36cd8cb6ea2a4c2bb358ff6411b0c788633a2a45dabbf1aeb4b701d1b5e840
-patch_filename = pcre2_10.42-1_patch.zip
-patch_url = https://wrapdb.mesonbuild.com/v2/pcre2_10.42-1/get_patch
-patch_hash = 06969e916dfee663c189810df57d98574f15e0754a44cd93f3f0bc7234b05d89
-wrapdb_version = 10.42-1
+patch_filename = pcre2_10.42-5_patch.zip
+patch_url = https://wrapdb.mesonbuild.com/v2/pcre2_10.42-5/get_patch
+patch_hash = 7ba1730a3786c46f41735658a9884b09bc592af3840716e0ccc552e7ddf5630c
+source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/pcre2_10.42-5/pcre2-10.42.tar.bz2
+wrapdb_version = 10.42-5
 
 [provide]
 libpcre2-8 = libpcre2_8

subprojects/sdl2.wrap

@@ -1,12 +1,15 @@
 [wrap-file]
-directory = SDL2-2.26.0
-source_url = https://github.com/libsdl-org/SDL/releases/download/release-2.26.0/SDL2-2.26.0.tar.gz
-source_filename = SDL2-2.26.0.tar.gz
-source_hash = 8000d7169febce93c84b6bdf376631f8179132fd69f7015d4dadb8b9c2bdb295
-patch_filename = sdl2_2.26.0-1_patch.zip
-patch_url = https://wrapdb.mesonbuild.com/v2/sdl2_2.26.0-1/get_patch
-patch_hash = 6fcfd727d71cf7837332723518d5e47ffd64f1e7630681cf4b50e99f2bf7676f
-wrapdb_version = 2.26.0-1
+directory = SDL2-2.28.1
+source_url = https://github.com/libsdl-org/SDL/releases/download/release-2.28.1/SDL2-2.28.1.tar.gz
+source_filename = SDL2-2.28.1.tar.gz
+source_hash = 4977ceba5c0054dbe6c2f114641aced43ce3bf2b41ea64b6a372d6ba129cb15d
+patch_filename = sdl2_2.28.1-2_patch.zip
+patch_url = https://wrapdb.mesonbuild.com/v2/sdl2_2.28.1-2/get_patch
+patch_hash = 2dd332226ba2a4373c6d4eb29fa915e9d5414cf7bb9fa2e4a5ef3b16a06e2736
+source_fallback_url = https://github.com/mesonbuild/wrapdb/releases/download/sdl2_2.28.1-2/SDL2-2.28.1.tar.gz
+wrapdb_version = 2.28.1-2
 
 [provide]
 sdl2 = sdl2_dep
+sdl2main = sdl2main_dep
+sdl2_test = sdl2_test_dep