Development of Emacs/W3

headers Ian D | 16 Sep 2012 13:13 · /tmp/

       Is anyone still working on w3?  I'd like to know the status of the project, i.e. what's needed, any plans, etc,
as I'd like to assist with development.

Ian D

    A while back, I noticed that the back mechanism was no longer working in w3.  The patch below fixes this
problem.  It also updates the lisp code to please Emacs' byte-compiler.  If any problems are found, please
let me know.

Ian D.   

-- Patch Begins Here --

diff --git a/lisp/w3.el b/lisp/w3.el
index b33623d..16aaafe 100644
--- a/lisp/w3.el
+++ b/lisp/w3.el
 <at>  <at>  -69,8 +69,7  <at>  <at>  See the variable `w3-notify' for the different notification behaviors."
     ;; we must not leave a different buffer current.
     ;; We can't rely on the editor command loop to reselect
     ;; the selected window's buffer.
-    (save-excursion
-      (set-buffer buff)
+    (with-current-buffer buff
       (make-frame)))
    ((eq w3-notify 'bully)
     (pop-to-buffer buff)
 <at>  <at>  -216,8 +215,7  <at>  <at>  variable `http-header'."
   "Propagate information from <meta http-equiv...> elements to MIME headers.
 Operate on BUFFER."
   (let (content-type end-of-headers extra-headers)
-    (save-excursion
-      (set-buffer buffer)
+    (with-current-buffer buffer

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URL:
  <http://savannah.gnu.org/patch/?7546>

                 Summary: MacOS X w3 crashes on startup
                 Project: w3
            Submitted by: devon
            Submitted on: Fri 27 May 2011 06:06:32 PM GMT
                Category: None
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

    _______________________________________________________

Details:

Here's the fix

--- w3-git-2011e-May-26-Thu/lisp/font.el	2011-05-26 15:31:52.000000000 -0400
+++ w3/lisp/font.el	2011-05-27 13:07:30.000000000 -0400
 <at>  <at>  -79,6 +79,7  <at>  <at> 
     (mswindows . (mswindows-font-create-name mswindows-font-create-object))
     (win32    . (x-font-create-name x-font-create-object))
     (w32      . (x-font-create-name x-font-create-object))
+    (ns        . (x-font-create-name x-font-create-object)) ; NextStep, MacOS
X
     (pm       . (x-font-create-name x-font-create-object)) ; Change? FIXME
     (tty      . (tty-font-create-plist tty-font-create-object)))
   "Alist mapping device types to functions.
 <at>  <at>  -430,7 +431,7  <at>  <at> 
       ;(weight		"\\(bold\\|demibold\\|medium\\|black\\)")
       (weight\?		"\\([^-]*\\)")
       ;(slant		"\\([ior]\\)")
-      (slant\?		"\\([^-]?\\)")
+      (slant\?		"\\([^-]*\\)")
       (swidth		"\\([^-]*\\)")
       (adstyle		"\\([^-]*\\)")
       (pixelsize	"\\(\\*\\|[0-9]+\\)")

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  <http://savannah.gnu.org/patch/?7546>

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URL:
  <http://savannah.gnu.org/bugs/?30428>

                 Summary: Crash when viewing any page on nextstep
                 Project: w3
            Submitted by: legoscia
            Submitted on: Tue Jul 13 11:54:53 2010
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: legoscia
             Open/Closed: Open
         Discussion Lock: Any

    _______________________________________________________

Details:

In the nextstep port of emacs (e.g. on Mac OS X), font.el crashes with
"font-default-size-for-device: Wrong type argument: arrayp, nil" when trying
to display any page.  This is because 'ns is an unknown device type.

The attached patch makes this problem go away; however the text is insanely
big. The proper solution is probably more involved.

    _______________________________________________________

File Attachments:

-------------------------------------------------------
Date: Tue Jul 13 11:54:53 2010  Name: font.el.diff  Size: 581B   By: legoscia
Treat nextstep fonts as X fonts
<http://savannah.gnu.org/bugs/download.php?file_id=20952>

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  <http://savannah.gnu.org/bugs/?30428>

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Currently h1 is smaller than the normal text on the page, which is
more certainly incorrect.  There are suggested default values in
appendix D of the css 2 spec (http://www.w3.org/TR/CSS21/sample.html),
which seem to work much better for h1-h6:

           }

  <at> media multifont {
-      h1  { font-size : +12pt }
-      h2  { font-size : +6pt  }
-      h3  { font-size : +4pt  }
-      h5  { font-size : -2pt  }
-      h6  { font-size : -4pt  }
+      h1  { font-size : 2em; margin: .67em 0 }
+      h2  { font-size : 1.5em; margin: .75em 0 }
+      h3  { font-size : 1.17em; margin: .83em 0 }
+      h5  { font-size : .83em; margin: 1.5em 0 }
+      h6  { font-size : .67em; margin: 1.67em 0 }
 }

 /* This causes problems with Emacs 19 */

Back in July, I submitted a bug fix to address the fact that the
margin preceding list items is converting pixel width to a space each.
 The fix I proposed at the time was far too aggressive, so I am
proposing an alternate solution:

 <at>  <at>  -624,7 +624,7  <at>  <at>  If the face already exists, it is unmodified."
 	     (beginning-of-line)
 	     (case list-style
 	       ((disc circle square)
-		(insert (format (format "%%%dc" margin)
+		(insert (format (format "%%%dc" (/ margin (frame-char-width)))
 				(or (cdr-safe (assq list-style w3-bullets))
 				    ?o))))
 	       ((decimal lower-roman upper-roman lower-alpha upper-alpha)

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Hi,

I would like Emacs/W3 to be uploaded to ELPA (Emacs Lisp Package
Archive) http://tromey.com/elpa/ 

This is because ELPA makes it very easy to quickly install the packages
I want on different emacsen, on different platforms.

I just do `M-x package-list-packages RET' to open a dired-like buffer,
listing all emacs lisp packages on offer at ELPA, then mark the packages
you'd like to install with `i' and then finally `x' to install them.

I've already prepared an ELPA package and sendt to Tom Tromey, the
maintainer of ELPA.  But he prefers to have upstream approval, and also
that the upstream maintainers upload new version directly to ELPA.

To ease that task, I'm enclosing some diffs to the current git repo for
ELPA.  The diffs are originally from Tom Tromey, but I've modified them
to make them run on debian etch (and lenny).

The diffs make it possible to just do:
 make elpa
to get a w3-$VERSION.tar file in the w3 directory that can be uploaded
to ELPA.

An ELPA package consists of a directory with all .el files and all info
files, and a *-pkg.el file, containing package meta-info.  It must be
possible to byte compile all of the .el files by making load-path
include the package directory.

My modifications to Tom's original Makefile.in diffs, are:
 - Don't depend on .elc for building elpa
 - Use ginstall-info rather than install-info to create a dir.info file,
   since install-info on debian is a different version with different
   arguments, that's a part of the dpkg package
 - Generate a w3-pkg.el file
 - Added an elpaclean target that will delete the w3-pkg.el, the ELPA
   package, and any staging directories, and made clean also do
   elpaclean 

The w3.el change is, according to Tom, to make w3 adjust to the
different directory layout it finds in ELPA.

Here are the git diffs:

diff --git a/Makefile.in b/Makefile.in
index 449d657..42098f8 100644
--- a/Makefile.in
+++ b/Makefile.in
 <at>  <at>  -31,9 +31,12  <at>  <at>  distclean: clean
 	for x in $(SUBDIRS); do ( cd $$x && $(MAKE) $ <at>  ); done
 	$(RM) config.* Makefile

-clean:
+clean: elpaclean
 	for x in $(SUBDIRS); do ( cd $$x && $(MAKE) $ <at>  ); done

+elpaclean:
+	$(RM) $(ELPA_PACKAGE_DEF) $(DIRNAME).tar
+
 dotemacs:
 	 <at> if (grep ";;; Emacs/W3 Configuration" $(DOTEMACS) 2>&1) >/dev/null; then \
 		echo Emacs/W3 setup already exists in $(DOTEMACS);	\
 <at>  <at>  -102,3 +105,28  <at>  <at>  _pkg.el: Makefile
 	 <at> echo ";;;###autoload" > _pkg.el
 	 <at> echo "(package-provide '$(PACKAGE)" >> pkg.el
 	 <at> echo "		:version $(VERSION)" >> pkg.el
+
+###############################################################################
+# ELPA
+###############################################################################
+ELPA_PACKAGE_DEF=lisp/w3-pkg.el
+
+elpa: info $(ELPA_PACKAGE_DEF)
+	rm -fr /tmp/$(DIRNAME)
+	mkdir /tmp/$(DIRNAME)
+	cp $(srcdir)/lisp/*.el /tmp/$(DIRNAME)
+	rm -f /tmp/$(DIRNAME)/docomp.el
+	rm -f /tmp/$(DIRNAME)/custom-load.el
+	rm -f /tmp/$(DIRNAME)/auto-autoloads.el
+	cp texi/*.info /tmp/$(DIRNAME)/
+	tar cf - etc | (cd /tmp/$(DIRNAME); tar xf -)
+	rm -f /tmp/$(DIRNAME)/etc/Makefile
+	rm -f /tmp/$(DIRNAME)/etc/Makefile.in
+	ginstall-info /tmp/$(DIRNAME)/w3.info /tmp/$(DIRNAME)/dir
+	ginstall-info /tmp/$(DIRNAME)/w3-faq.info /tmp/$(DIRNAME)/dir
+	rm -f /tmp/$(DIRNAME)/dir.old
+	( cd /tmp; tar cf - $(DIRNAME) ) | cat > $(DIRNAME).tar
+	rm -fr /tmp/$(DIRNAME)
+
+$(ELPA_PACKAGE_DEF):
+	echo "(define-package \"w3\" \"$(VERSION)\" \"A web browser written entirely in Emacs Lisp\")" > $(ELPA_PACKAGE_DEF)
diff --git a/lisp/w3.el b/lisp/w3.el
index b33623d..387600b 100644
--- a/lisp/w3.el
+++ b/lisp/w3.el
 <at>  <at>  -5,7 +5,7  <at>  <at> 
 ;; Keywords: faces, help, comm, news, mail, processes, mouse, hypermedia

 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
-;;; Copyright (c) 1996, 97, 98, 99, 2001, 2007, 2008 Free Software Foundation, Inc.
+;;; Copyright (c) 1996, 97, 98, 99, 2001, 2007, 2008, 2009 Free Software Foundation, Inc.
 ;;; Copyright (c) 1993 - 1996 by William M. Perry <wmperry <at> cs.indiana.edu>
 ;;;
 ;;; This file is part of GNU Emacs.
 <at>  <at>  -1710,6 +1710,9  <at>  <at>  BUFFER, the end of BUFFER, nil, and (current-buffer), respectively."
 		       (if (fboundp 'locate-data-directory)
 			   (locate-data-directory "w3"))
 		       data-directory
+		       ;; For ELPA.
+ 		       (expand-file-name "etc" w3-lisp)
+
 		       (concat data-directory "w3/")
 		       (expand-file-name "../../w3" data-directory)
 		       w3-lisp

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W3 Development?

w3.el Patch

Question about using w3c browser inside emacs.

[patch #7546] MacOS X w3 crashes on startup

[bug #30428] Crash when viewing any page on nextstep

Default size of header tags

List Item Margins

Wrong type argument: arrayp, nil

Suggest change to css-expand-length

Putting Emacs/W3 in ELPA?

Compiling for CarbonEmacs on Mac OS X Tiger

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