How to open files in web browsers (e.g Firefox) within editors like vim or emacs?_问答_开发者

How to open files in browsers (e.g Firefox) within editors like vim or emacs? Notepad++ o开发者_运维技巧pen files in browsers by pressing Ctrl+Shift+Alt+X (Firefox). Is there a way to do this in gVim or Emacs?

browse-url-of-file is an interactive compiled Lisp function in `browse-url.el'.

It is bound to <menu-bar> <HTML> <Load this Buffer in Browser>, C-c C-z v.

(browse-url-of-file &optional file)

Ask a WWW browser to display file.
Display the current buffer's file if file is nil or if called interactively. Turn the filename into a URL with function browse-url-file-url. Pass the URL to a browser using the browse-url function then run browse-url-of-file-hook.

In emacs I don't think this is built in, I may be wrong, but if not here is a function to do it:

(defun open-in-browser()
  (interactive)
  (let ((filename (buffer-file-name)))
    (browse-url (concat "file://" filename))))

For whatever reason, my EmacsW32 on WinXP install kept sending browse-url directives to shell with "open file:// alone, and that didn't work so well*. Cutting it off at the knees, and modifying justin's original as below worked for me:

(defun open-in-browser()
"open buffer in browser, unless it is not a file. Then fail silently (ouch)."
  (interactive)
  (if (buffer-file-name)
      (let ((filename (buffer-file-name)))
        (shell-command (concat "start firefox.exe \"file://" filename "\"")))))

Needs some improvement. As well as replacement of your favorite browser. d**n you, hard-coding.

* I think the problem was the system-type check in browse-url-default-windows-browser, but not positive.

In gVim:

:!start cmd /c "C:\Users\pierre\AppData\Local\Google\Chrome\Application\chrome.exe" file:///"%:p""

You need the file:// URI to indicate that it is from the file system, this will work with all browsers. %:p produces the full file path for the current file. The quotes are necessary.

Simply map that to whatever you choose. You may need to do set shell=cmd.exe if you've set your shell to bash or something else.

In emacs (quoting justinhj):

(defun open-in-browser()
  (interactive)
  (let ((filename (buffer-file-name)))
    (browse-url (concat "file://" filename))))

You mean you'd like to open the file currently being edited in a web browser?

In Vim, use something like :!firefox %.

Edit: You could, in fact, use nmap <silent> <C-M-X> :!firefox %<CR> to cause Vim to act very much like Notepad++ (though this mapping won't care whether you press shift or not).

Note that not every browser will actually render the file's contents when given the filename on the command line; e.g. Google Chrome will open a "save as" dialogue instead, as if you were downloading the file in question. Look up your browser's docs if in doubt. Firefox will 'just work', though.

Depending what you want to do with this, you might consider Emacs + MozRepl, which basically lets you send javascript commands to Firefox via telnet. Unfortunately I can't seem to write the elisp to make this work, but a related trick for reloading webpages from within emacs is shown by Sard in What's in your .emacs?. More information on integrating emacs and mozrepl from the original source and also here for a cool trick that updates the page in the browser as you type in the emacs buffer - it's pretty nice for getting instant feedback when working with html.

I reckon the same thing would work with vim, but I've only used it in emacs.

I do it an Elisp function using shell command xdg-open.
Then I define a key in html-mode to call the function.
You've gotta be comfortable adding stuff to your .emacs file.

(defun open-html()
  "Get the HTML file path & open it"
  (interactive)
  (let (html-file-path)
    (setq html-file-path (buffer-file-name))
    (shell-command (format "xdg-open '%s'" html-file-path)))
)

This answer is based on Emacs 26.2

Emacs has the functions for opening a file in a browser built in but the behavior on different platforms may be different. Looking into the source code and documentation of browse-url-of-file by entering C-h f browse-url-of-file you'll see that the variable browse-url-browse-function determines which browser is used. You can then customize this variable to use, say, Chrome, by choosing browse-url-chrome and then apply and save the change. To access the customization page either entering C-h f browse-url-browser-function and then selecting the customize hyperlink, or M-x customize then searching for browse-url-browser-function.