iTerm 中 vim_mode 无法响应 <C-c> 及 <C-[>

我发现在其它软件中设置 vim_mode: true 后除了 <ESC> 外, <C-c> 及 <C-[> 被按下时也可切换为英文模式, 但 iTerm.app 中只有 <ESC> 可响应。此外 Terminal 中 <ESC>, <C-c>, <C-[> 在按下时均无法切换为英文模式。目前怀疑这两个软件内部可能存在潜在的与 <C-c> <C-[> 等按键的快捷键冲突。

下面是我的 Squirrel 配置, 如前所述, 除了 iTerm 及 Terminal 外, 诸如 MacVim, VSCode, Obsidian 等软件中均可通过按下 <C-c> 及 <C-[> 来实现切换为英文模式

    app_options:
      com.microsoft.VSCode:
        ascii_mode: true
        vim_mode: true
      org.vim.MacVim: # you should find
        ascii_mode: true
        # allowed switch to English input when <ESC> pressed, and don't need double press <ESC> in macvim anymore
        vim_mode: true
        #no_inline: false
      com.apple.Terminal:
        ascii_mode: true
        vim_mode: true
        #no_inline: false
      com.googlecode.iterm2:
        ascii_mode: true
        vim_mode: true
      md.obsidian:
        vim_mode: true
        ascii_mode: true

Reproduce the reported behavior using the provided app_options configuration in iTerm.app and Terminal, then compare it with MacVim, VSCode, and Obsidian. Trace how ESC, C-c, and C-[ are handled and identify whether terminal shortcuts prevent the mode switch; done means all three keys switch to English mode where the configuration enables vim_mode.