move title escaping code to lua

CMakeLists.txt

@@ -15,7 +15,6 @@ configure_file(${PROJECT_SOURCE_DIR}/menu.rc.in ${PROJECT_BINARY_DIR}/menu.rc @O
 
 set(CMAKE_SHARED_LIBRARY_PREFIX "")
 add_library(menu SHARED
-    src/mpv/misc/bstr.c
     src/mpv/misc/dispatch.c
     src/mpv/ta/ta.c
     src/mpv/ta/ta_talloc.c

src/lua/dyn_menu.lua

@@ -8,6 +8,7 @@ local msg = require('mp.msg')
 -- user options
 local o = {
     uosc_syntax = false,     -- toggle uosc menu syntax support
+    escape_title = true,     -- escape & to && in menu title
     max_title_length = 80,   -- limit the title length, set to 0 to disable.
     max_playlist_items = 20, -- limit the playlist items in submenu, set to 0 to disable.
 }
@@ -232,8 +233,8 @@ local function build_track_items(list, type, prop, prefix)
             local state = {}
             -- there may be 2 tracks selected at the same time, for example: subtitle
             if track.selected then
-                table.insert(state, 'checked')
-                if track.id ~= pos then table.insert(state, 'disabled') end
+                state[#state + 1] = 'checked'
+                if track.id ~= pos then state[#state + 1] = 'disabled' end
             end
 
             items[#items + 1] = {
@@ -281,11 +282,11 @@ local function update_tracks_menu(menu)
     local items_s = build_track_items(track_list, 'sub', 'sid', true)
 
     -- append video/audio/sub tracks into one submenu, separated by a separator
-    for _, item in ipairs(items_v) do table.insert(submenu, item) end
-    if #submenu > 0 and #items_a > 0 then table.insert(submenu, { type = 'separator' }) end
-    for _, item in ipairs(items_a) do table.insert(submenu, item) end
-    if #submenu > 0 and #items_s > 0 then table.insert(submenu, { type = 'separator' }) end
-    for _, item in ipairs(items_s) do table.insert(submenu, item) end
+    for _, item in ipairs(items_v) do submenu[#submenu + 1] = item end
+    if #submenu > 0 and #items_a > 0 then submenu[#submenu + 1] = { type = 'separator' } end
+    for _, item in ipairs(items_a) do submenu[#submenu + 1] = item end
+    if #submenu > 0 and #items_s > 0 then submenu[#submenu + 1] = { type = 'separator' } end
+    for _, item in ipairs(items_s) do submenu[#submenu + 1] = item end
 end
 
 -- handle #@tracks/<type> menu update for given type
@@ -295,7 +296,7 @@ local function update_track_menu(menu, type, prop)
     if #track_list == 0 then return end
 
     local items = build_track_items(track_list, type, prop, false)
-    for _, item in ipairs(items) do table.insert(submenu, item) end
+    for _, item in ipairs(items) do submenu[#submenu + 1] = item end
 end
 
 -- handle #@chapters menu update
@@ -418,7 +419,7 @@ local function update_menu_state(menu)
 
     local state = {}
     if type(res) == 'string' then
-        for s in res:gmatch('[^,%s]+') do table.insert(state, s) end
+        for s in res:gmatch('[^,%s]+') do state[#state + 1] = s end
     end
     menu.item.state = state
     menu_items_dirty = true
@@ -456,7 +457,7 @@ local function dyn_menu_load(item, keyword)
         state = nil,
         dirty = false,
     }
-    table.insert(dyn_menus, menu)
+    dyn_menus[#dyn_menus + 1] = menu
     keyword_to_menu[keyword] = menu
 
     local expr = keyword:match('^state=(.-)%s*$')
@@ -592,9 +593,6 @@ end
 
 -- parse input.conf, return menu items
 local function parse_input_conf(conf)
-    local items = {}
-    local by_id = {}
-
     local function extract_title(cmd)
         if not cmd or cmd == '' then return '' end
         local title = cmd:match('#menu:%s*(.*)%s*')
@@ -620,38 +618,40 @@ local function parse_input_conf(conf)
         return list
     end
 
+    local function append_menu(menu, type, title, cmd, submenu)
+        menu[#menu + 1] = {
+            type = type,
+            title = (title and o.escape_title) and title:gsub('&', '&&') or title,
+            cmd = cmd,
+            submenu = submenu,
+        }
+    end
+
+    local items = {}
+    local by_id = {}
+
     for line in conf:gmatch('[^\r\n]+') do
         if line:sub(1, 1) ~= '#' or o.uosc_syntax then
-            local key, cmd = line:match('%s*([%S]+)%s+(.-)%s*$')
-            local title = extract_title(cmd)
-            local list = split_title(title)
-
             local submenu_id = ''
             local target_menu = items
+            local key, cmd = line:match('%s*([%S]+)%s+(.-)%s*$')
+            local list = split_title(extract_title(cmd))
 
             for id, name in ipairs(list) do
                 if id < #list then
                     submenu_id = submenu_id .. name
                     if not by_id[submenu_id] then
                         local submenu = {}
                         by_id[submenu_id] = submenu
-                        target_menu[#target_menu + 1] = {
-                            title = name,
-                            type = 'submenu',
-                            submenu = submenu,
-                        }
+                        append_menu(target_menu, 'submenu', name, nil, submenu)
                     end
                     target_menu = by_id[submenu_id]
                 else
                     if name == '-' or (o.uosc_syntax and name:sub(1, 3) == '---') then
-                        target_menu[#target_menu + 1] = {
-                            type = 'separator',
-                        }
+                        append_menu(target_menu, 'separator')
                     else
-                        target_menu[#target_menu + 1] = {
-                            title = (key ~= '' and key ~= '_') and (name .. "\t" .. key) or name,
-                            cmd = cmd,
-                        }
+                        local title = (key ~= '' and key ~= '_') and (name .. "\t" .. key) or name
+                        append_menu(target_menu, nil, title, cmd)
                     end
                 end
             end

src/menu.c

@@ -2,28 +2,9 @@
 // SPDX-License-Identifier: GPL-2.0-only
 
 #include <windows.h>
-#include "misc/bstr.h"
+#include "mpv_talloc.h"
 #include "menu.h"
 
-// escape & to && for menu title
-static wchar_t *escape_title(void *talloc_ctx, char *title) {
-    void *tmp = talloc_new(NULL);
-    bstr left, rest;
-    bstr escaped = bstr0(NULL);
-
-    left = bstr_split(bstr0(title), "&", &rest);
-    while (rest.len > 0) {
-        bstr_xappend(tmp, &escaped, left);
-        bstr_xappend(tmp, &escaped, bstr0("&&"));
-        left = bstr_split(rest, "&", &rest);
-    }
-    bstr_xappend(tmp, &escaped, left);
-
-    wchar_t *ret = mp_from_utf8(talloc_ctx, bstrdup0(tmp, escaped));
-    talloc_free(tmp);
-    return ret;
-}
-
 // append menu item to HMENU
 static int append_menu(HMENU hmenu, UINT fMask, UINT fType, UINT fState,
                        wchar_t *title, HMENU submenu, void *data) {
@@ -135,7 +116,7 @@ static void build_menu(void *talloc_ctx, HMENU hmenu, mpv_node *node) {
                          strcmp(cmd, "ignore") == 0;
             }
             int id = append_menu(hmenu, fMask, 0, (UINT)fState,
-                                 escape_title(talloc_ctx, title), submenu,
+                                 mp_from_utf8(talloc_ctx, title), submenu,
                                  talloc_strdup(talloc_ctx, cmd));
             if (grayed) EnableMenuItem(hmenu, id, MF_BYCOMMAND | MF_GRAYED);
         }