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Re: Line wrapping with proportional fonts

In [emacs-w3m : No.11776] Dave Abrahams wrote:
> When I invoke `M-x variable-pitch-mode' in a w3m buffer, lines commonly
> extend beyond the right side of the window before they wrap.  In case
> this is impossible to address correctly and completely due to line wraps
> being calculated on the basis of a fixed character width, it would help
> if we could specify a margin width to be subtracted from the physical
> width when calculating line wraps.

shr.el may have a potential to be able (to be improved) to show
variable pitch text beautifully, because it decodes and renders
html by itself (Lars may not side with, since it is named
*Simple* HTML Renderer, though).  Emacs-w3m depends heavily on
decoding and a major part of rendering (including line wrapping)
of w3m, that seems to suppose that a fixed font is used.  So, I
think it is hard to make emacs-w3m re-render w3m's output.

This is what emacs-w3m does using w3m:

  (insert "<html>The quick brown fox jumps over the lazy dog.</html>")
  (call-process-region (point-min) (point-max) "w3m" t t nil
		       "-halfdump" "-T" "text/html" "-cols" "20")