elisp

问题 I use emacs to edit a number of file types, and would like an easy visual queue to tell .c files from .vhd or .py files, for instance. How can I add a custom background color to the major mode for that language? 回答1: You can do this via hooks. Among other things you can hook is when a new major mode starts. Put something like this into your .emacs file, and emacs will set your background color to purple every time you go into Python mode. (add-hook 'python-mode-hook (lambda () (set-background

问题 For example, in the codes of zen-coding, the "C-j" shadows the normal behavior of "C-j" ( newline-and-indent ) (define-key zencoding-mode-keymap (kbd "C-j") 'zencoding-expand-line) Then how can I unset this keybinding and use C-j for newline-and-indent again? I tried this, but it doesn't work: (add-hook 'html-mode-hook (lambda () (progn (zencoding-mode) (local-set-key (kbd "C-j") 'newline-and-indent)))) Does anyone have ideas about this? 回答1: The general way to unbind a key (for any keymap)

问题 For example, in the codes of zen-coding, the "C-j" shadows the normal behavior of "C-j" ( newline-and-indent ) (define-key zencoding-mode-keymap (kbd "C-j") 'zencoding-expand-line) Then how can I unset this keybinding and use C-j for newline-and-indent again? I tried this, but it doesn't work: (add-hook 'html-mode-hook (lambda () (progn (zencoding-mode) (local-set-key (kbd "C-j") 'newline-and-indent)))) Does anyone have ideas about this? 回答1: The general way to unbind a key (for any keymap)

问题 I'm trying to write a function that will let me choose (interactively) the month and year for org-agenda-month-view -- which uses a format of 201312 ( without double-quotes) for December 2013 . I would like to use either words ( December ) or numbers ( 12 ) for the month, but need some assistance (please) to decode the name of the month into an integer -- something like (if (not (integer-p month)) (setq month (decode-name-of-month month))) . Also, any pointers on how to consolidate my two

问题 I would like to have which-function-mode on by default when I open up Emacs. I've added the following lines to my .emacs file. (setq which-func-mode t) (setq which-function-mode t) When I open up a .cpp file and navigate to the body of a function, I'm not seeing the function name in the status bar at the bottom like I should. If I then run M-x which-function-mode, the message is "Which-Function mode disabled" so it looks like the line in my .emacs file takes but is not quite working. Am I

问题 I am trying to write a function, that translates a string containing unicode characters into some default ASCII transcription. Ideally I'd like e.g. Ångström to become Angstroem or, if that is not possible, Angstrom . Likewise α=χ should become a=x (c?) or similar. Does Emacs have such built-in capabilities? I know I can get the names and similar of characters ( get-char-code-property ) but I know no built-in transcription table. The purpose is to translate titles of entries into meaningfully

问题 I am trying to write a function, that translates a string containing unicode characters into some default ASCII transcription. Ideally I'd like e.g. Ångström to become Angstroem or, if that is not possible, Angstrom . Likewise α=χ should become a=x (c?) or similar. Does Emacs have such built-in capabilities? I know I can get the names and similar of characters ( get-char-code-property ) but I know no built-in transcription table. The purpose is to translate titles of entries into meaningfully

问题 {It has been asked before: Emacs: highlight matching paren when cursor is on it, not after it but none of the answers are satisfactory} I am using mic-paren with following .emacs settings (although the problem exists with all similar emacs packages, so it seems to be some kind of default emacs behavior) (paren-activate) (setq paren-match-face 'highlight) (setq paren-sexp-mode t) which highlight the all the text between two parenthesis. It works well when the cursor is ON opening parenthesis

问题 I'd like my tab key to do the following: If I'm in the minibuffer, use word completion. Otherwise, if a region is selected, indent it. Otherwise, indent the line at the point (using tab-to-tab-stop). Here's the code, some of which is based on fragments I've found elsewhere on the Internet: (defun my-tab () "If region is selected, indent it and keep it selected, else indent current line." (interactive) (if (use-region-p) (increase-left-margin (region-beginning) (region-end) nil) (tab-to-tab

问题 I'd like my tab key to do the following: If I'm in the minibuffer, use word completion. Otherwise, if a region is selected, indent it. Otherwise, indent the line at the point (using tab-to-tab-stop). Here's the code, some of which is based on fragments I've found elsewhere on the Internet: (defun my-tab () "If region is selected, indent it and keep it selected, else indent current line." (interactive) (if (use-region-p) (increase-left-margin (region-beginning) (region-end) nil) (tab-to-tab