Emacs FAQ

问题：Emacs: Failed to verify signature xxx.sig 办法： 重命名~/.emacs.d/elpa/gnupg，M-x package-refresh-contents, 记得git不要带上这个文件夹

C-x C-= C-x C– M-x text-scale-adust 自适应

使用C-h b C-c &发现是org-mark-ring-goto 使用C-h f org-mark-ring-goto org-mark-ring-goto is an interactive compiled Lisp function in ‘org.el’.

It is bound to C-c &.

(org-mark-ring-goto &optional N)

Jump to the previous position in the mark ring. With prefix arg N, jump back that many stored positions. When called several times in succession, walk through the entire ring. Org mode commands jumping to a different position in the current file, or to another Org file, automatically push the old position onto the ring. 目测是跳转到刚刚的打开页面， 也就是返回

• publish org files

see https://orgmode.org/worg/org-tutorials/org-publish-html-tutorial.html

• 模版自动插入 一种方式是auto-insert, 也可以通过yasnipet或者org-capture的模版实现

首先鼠标就可以拖动哈 命令行操作，

C-x z

M-x emacs-init-time 56.530494s 震惊了 后来10s 急需优化一下，记录一下优化过程 我重新启动，发现停留时间长的有org-roam-ui, 估计默认开启了，决定关掉，因为确实很少用 直接删掉配置不行，所以确认参数是org-roam-ui-mode 进行(setq org-roam-ui-mode nil)即可 发现还是好了不少了哈 继续看messages里面信息

尝试把eletric那个mode关闭或者C-u C-y试试

用C-c '

indicator相关的display干掉

Ctrl-Enter

类似这样

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  #include <stdio.h>
  #include <string.h>

  int main() {
    char s1[] = "hello ";
    char s2[] = "liuliancao";

    char s3[] = "";
    strcpy(s3, s1);

    printf("strcopy(s3, s1), s3 is %s\n", s3);

    printf("strcat(s1, s2) is %s\n", strcat(s1, s2));

    printf("strlen(s1) is %d\n", strlen(s1));

    printf("strcmp(%s,%s) is %d\n", s1, s1, strcmp(s1, s1));
    printf("strcmp(%s,%s) is %d\n", s1, s2, strcmp(s1, s2));

  }

先分析下原因吧，把这段放到bash执行必然是可以的，所以是emacs环境变量相关和bash不一致 ,而这部分是babel相关的，所以检查下babel相关的变量

M-x comment-dwim

https://www.emacswiki.org/emacs/EmacsAsDaemon

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(use-package undo-tree
  :ensure t
  :init
  (global-undo-tree-mode t))

再使用C-x u就会有一个树选择，当然也可以Ctrl+/来直接回到上一次

emacs会把copy的内容放进kill ring里面，通过C-y实现粘贴

通过M-y可以选择到之前的内容

整体观察下来，最近尝试用下gnus

gnus我建议先阅读下文档emacswiki gnus和gnus tutorial

首先直接M-x gnus打开gnus会报错，因为没有任何group设置

gnus在线pdf文档

https://sqrtminusone.xyz/posts/2021-02-27-gmail/ https://allsyed.com/posts/manage-gmail-with-emacs-part-1/ 配置了gmail报错

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  (use-package gnus
    :ensure t
    :config
    ;; gmail accounts
    ;; (setq user-email-address "liuliancao@gmail.com")
    ;; (setq user-full-name "liuliancao")
    ;; (setq gnus-select-method
    ;;       '(nnimap "gmail"
    ;;                (nnimap-address "imap.gmail.com")
    ;;                (nnimap-server-port 993)
    ;;                (nnimap-stream ssl)))
    ;; (setq smtpmail-smtp-server "smtp.gmail.com")
    ;; (setq smtp-smtp-service 587)
    ;; (setq message-mail-function 'smtpmail-send-it)
    ;; (setq gnus-message-archive-group nil)
    ;; (setq mml-secure-openpgp-encrypt-to-self t)
    ;; (add-hook 'message-setup-hook 'mml-secure-message-encrypt)
    (setq gnus-select-method
      '(nnimap "qqmail"
               (nnimap-address "imap.qq.com")
               (nnimap-user "luqixue@qq.com") ;; atention nnimap-user must be full with @
               (nnimap-server-port 993)
               (nnimap-stream ssl)
               ))
     (setq send-mail-function 'smtpmail-send-it
            user-mail-address "luqixue@qq.com"
            user-full-name "lqx"
            smtpmail-smtp-server "smtp.qq.com"
            smtpmail-smtp-service 465
            smtpmail-stream-type 'ssl
            )
      )

待研究 暂时用C-M-v

设置auto-fill-mode 文章段落调用M-x fill-region

M-n或者M-p

建议阅读orgguide,或者pdf下下来

#+STARTUP: content

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C-c |		org-table-create-or-convert-from-region

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<S-down>	org-shiftdown
<S-left>	org-shiftleft
<S-return>	org-table-copy-down
<S-right>	org-shiftright
<S-up>		org-shiftup

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C-c [		org-agenda-file-to-front
C-c ]		org-remove-file

使用hs-minor-mode C-c @ C-d折叠 C-c @ C-s展开 觉得快捷键麻烦可以M-x hs-搜索下就好了

使用retangle mark C-x SPC C-n C-p move C-t YOUR_STRING RET

记录书签 C-x r m 查找书签 C-x r b

C-c -

如果是临时安装，建议重启一下emacs

https://orgmode.org/manual/Repeated-tasks.html

比如一个任务要每天提醒，在日期后面加一个+1d就可以 SCHEDULED: <2022-11-30 三 +1d>

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#+PANDOC_OPTIONS: self-contained:t

使用pandoc的时候 加上这个开头

按b

C-c -，更换格式，S-right

M-x flush-lines