render region with eww

render region with eww

[Ivan Kanis]

Lars,

emacs-w3m has a function called w3m-region. As the name implies it
renders html within a region. The package newsticker (included in Emacs)
uses that feature. I think it's implemented as a minor mode.

I am not sure how to write it wit eww. Any thoughts?

Ivan



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Re: render region with eww

[Rüdiger Sonderfeld]

On Wednesday 26 June 2013 10:04:38 Ivan Kanis wrote:
> emacs-w3m has a function called w3m-region. As the name implies it
> renders html within a region. The package newsticker (included in Emacs)
> uses that feature. I think it's implemented as a minor mode.
> 
> I am not sure how to write it wit eww. Any thoughts?

You can do this with shr alone.  A quick hack:

(defun shr-render-region (begin end &optional buffer)
  "Display the HTML rendering of the region between BEGIN and END."
  (interactive "r")
  (unless (fboundp 'libxml-parse-html-region)
    (error "This function requires Emacs to be compiled with libxml2"))
  (with-current-buffer (or buffer (current-buffer))
    (let ((dom (libxml-parse-html-region begin end)))
      (kill-region begin end)
      (goto-char begin)
      (shr-insert-document dom))))

Best Regards
Rüdiger

[PATCH] render region with eww

[Ivan Kanis]

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June, 26 at 11:00 Rüdiger Sonderfeld wrote:

>> I am not sure how to write it wit eww. Any thoughts?
>
> You can do this with shr alone.  A quick hack:

Thanks Rüdiger! it works nicely with newsticker.

Here is the patch for you Lars.


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From 656ced71e92d95b1ef8621bcb93984bd5e315711 Mon Sep 17 00:00:00 2001
From: Ivan Kanis <ivan@tao>
Date: Thu, 27 Jun 2013 19:59:27 +0200
Subject: [PATCH] add render region function

---
 emacs/misc/shr.el |   11 +++++++++++
 1 files changed, 11 insertions(+), 0 deletions(-)

diff --git a/emacs/misc/shr.el b/emacs/misc/shr.el
index f2db68b..fc48449 100644
--- a/emacs/misc/shr.el
+++ b/emacs/misc/shr.el
@@ -166,6 +166,17 @@ cid: URL as the argument.")
      (libxml-parse-html-region (point-min) (point-max))))
   (goto-char (point-min)))
 
+(defun shr-render-region (begin end &optional buffer)
+  "Display the HTML rendering of the region between BEGIN and END."
+  (interactive "r")
+  (unless (fboundp 'libxml-parse-html-region)
+    (error "This function requires Emacs to be compiled with libxml2"))
+  (with-current-buffer (or buffer (current-buffer))
+    (let ((dom (libxml-parse-html-region begin end)))
+      (kill-region begin end)
+      (goto-char begin)
+      (shr-insert-document dom))))
+
 (defun shr-visit-file (file)
   "Parse FILE as an HTML document, and render it in a new buffer."
   (interactive "fHTML file name: ")
-- 
1.7.1

Re: [PATCH] render region with eww

[Stefan Monnier]

> +(defun shr-render-region (begin end &optional buffer)
> +  "Display the HTML rendering of the region between BEGIN and END."
> +  (interactive "r")
> +  (unless (fboundp 'libxml-parse-html-region)
> +    (error "This function requires Emacs to be compiled with libxml2"))
> +  (with-current-buffer (or buffer (current-buffer))
> +    (let ((dom (libxml-parse-html-region begin end)))
> +      (kill-region begin end)
> +      (goto-char begin)
> +      (shr-insert-document dom))))

I think this should use delete-region, not kill-region.


        Stefan

Re: [PATCH] render region with eww

[Lars Magne Ingebrigtsen]

Ivan Kanis <ivan@kanis.fr> writes:

> Here is the patch for you Lars.

Thanks; applied (with Stefan's fix).

-- 
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