Zsh 清除回滚缓冲区

Question

使用 BashCtrlL将清除屏幕但不回滚缓冲区。过去，我通过使用以下方法解决了这个问题：

tput reset

但是我注意到这个命令不会用 Zsh 清除回滚缓冲区。那么，它是如何完成的呢？

Answer 1

function clear-scrollback-buffer {
  # Behavior of clear: 
  # 1. clear scrollback if E3 cap is supported (terminal, platform specific)
  # 2. then clear visible screen
  # For some terminal 'e[3J' need to be sent explicitly to clear scrollback
  clear && printf '\e[3J'
  # .reset-prompt: bypass the zsh-syntax-highlighting wrapper
  # https://github.com/sorin-ionescu/prezto/issues/1026
  # https://github.com/zsh-users/zsh-autosuggestions/issues/107#issuecomment-183824034
  # -R: redisplay the prompt to avoid old prompts being eaten up
  # https://github.com/Powerlevel9k/powerlevel9k/pull/1176#discussion_r299303453
  zle && zle .reset-prompt && zle -R
}

zle -N clear-scrollback-buffer
bindkey '^L' clear-scrollback-buffer

clear并zle .reset-prompt && zle -R添加以确保它适用于多行提示，这很重要。

参考

• 做clear什么
• 清除缓冲区而不清除状态行