vim中删除命令行.

古城微笑少年丶 2022-09-11 15:23 210阅读 0赞

[参考地址][Link 1]

augroup my_cmdline_window
        au!
        au CmdWinEnter * let s:old_cmdline_hist = getline(1, line('$')-1)
        "旧命令行列表.
        au CmdWinLeave * call s:update_history()
        "更新当前会话历史,尝试删除`viminfo`已删历史
    augroup END
    
    fu! s:update_history() abort
        let hist = filter(getline(1, '$'), 'v:val !~# "^\\s*$"')
        call histdel(':')
        for i in hist
            call histadd(':', i)
        endfor
        "此块仅更新当前会话历史记录
    
        let viminfo = expand('~/.viminfo')
        if !filereadable(viminfo)
            return
        endif
        "不可读,则停止.
    
        let info = readfile(viminfo)
        let deleted_entries = filter(copy(s:old_cmdline_hist), 'index(hist, v:val) == -1')
        "取`info`中内容,用`filter`取已删项
        "后者删除不满足后面条件项.
        "如果`过滤()`操作旧历史项不在新历史内,则该式为真
    
        call map(deleted_entries, 'index(info, ":".v:val)')
        "此行将删除文本项转换为`~/.viminfo`内部行地址
        call sort(filter(deleted_entries, 'v:val >= 0'))
        if empty(deleted_entries)
            return
        endif
        "排序行地址,删除非正的,避免上一步找不到的(如,索引()返回-1).
        "并检查此时是否还有行地址,无则停止
    
        for entry in reverse(deleted_entries)
            call remove(info, entry, entry + 1)
        endfor
        "此块从`信息`中删除相关行,删了2行(项,项+1)
        "因为每个命令行中`~/.viminfo`中有2行,第2行为时间戳.反序删除,不必更新要删除行地址(你删一行,下行要减一)
        call writefile(info, viminfo, 'b')
        "用新内容覆盖`~/.viminfo`.与原来一样,只是去掉`命令行窗口`删除的行.
        "使用前,注意,先备份.
    endfu

[Link 1]: https://stackoverflow.com/questions/45365388/how-to-permanently-delete-a-specific-entry-from-vims-command-line-history-witho