fontifying emacs w3m view source buffer

fontifying emacs w3m view source buffer

[Peter K. Lee]

I'm doing some server-side web stuff, and was using emacs-w3m mode to
verify generated HTML text.

I wanted to know if there were existing hooks or calls from other
emacs packages to fontify the w3m view source buffer (since it's just
HTML after all).

Since I was using NXML for authoring, I tried adding something like
the following...

(defun saint/w3m-nxml-view (url)
  "Suitable for adding to `w3m-display-hook'."
  (if (string-match "\\`about://source/" url)
	  (progn
		(require 'nxml-mode)
        (nxml-mode))))
(add-hook 'w3m-display-hook 'saint/w3m-nxml-view)

which does work in fontifying buffer, but you're thrown out of w3m
mode completely.

(defun saint/w3m-nxml-view (url)
  "Suitable for adding to `w3m-display-hook'."
  (if (string-match "\\`about://source/" url)
	  (progn
		(require 'nxml-mode)
        (nxml-fontify-buffer))))
(add-hook 'w3m-display-hook 'saint/w3m-nxml-view)

I then tried the above, but call to nxml-fontify-buffer does not seem
to work.

Any suggestions?

TIA,

Peter

Re: fontifying emacs w3m view source buffer

[Thien-Thi Nguyen]

Peter K. Lee <saint@corenova.com> writes:

> Any suggestions?

check for applicability as you currently do, then, instead of
changing the mode of the buffer directly, copy its contents to a
new buffer which you can munge much more freely.  split the
command into the check and a call to a new function (something
along the lines of "prettify-html-other-buffer"), so that you can
use the latter in other contexts.  comment, document, GPL, post.

thi

Re: fontifying emacs w3m view source buffer

[Peter K. Lee]

Thien-Thi Nguyen <ttn@glug.org> writes:

> Peter K. Lee <saint@corenova.com> writes:
>
>> Any suggestions?
>
> check for applicability as you currently do, then, instead of
> changing the mode of the buffer directly, copy its contents to a
> new buffer which you can munge much more freely.  split the
> command into the check and a call to a new function (something
> along the lines of "prettify-html-other-buffer"), so that you can
> use the latter in other contexts.  comment, document, GPL, post.

Well, I didn't have to bother with copying into new buffer and the
like, but I did get it working to my liking.

I found an existing font-lock extension to HTML helper mode, and
modified the w3m-display hook to call the entry point into that
extension.

It works beautifully for HTML, but I figure I could have it do
something similar for other types of view-source files that is NOT
HTML and fontify accordingly.

So, here's the comment, document, GPL, post.

http://home.corenova.com/projects/saint/wiki/EmacsW3MFontifyViewSource

I'll update my wiki page as I enable rest of fontification in w3m view
source mode for other extensions.

-Peter