'font' CSS shorthand property ignored in SVG 'text' elements

[febdoctor]

The font properties set via a 'font' CSS shorthand property seem to be totally ignored when rendering text elements inside SVG images.

Here is a minimal SVG to reproduce the issue:

<svg xmlns="http://www.w3.org/2000/svg"  viewBox="0 0 400 400">

<style>
   .octl text {
         font: 7mm cursive;
          fill: purple;
          stroke: white;
          stroke-width: 0.1mm;
          stroke-linecap: butt;
          stroke-linejoin: miter;
   }

   	line {
	    stroke: black;
	}
</style>
<g class="octl">
<text class="octl" x="7mm" y="7mm">Text 14mm in cursive.</text>
<line x1="7mm" y1="7mm" x2="7mm" y2="0mm" />
<line x1="7mm" y1="10mm" x2="14mm" y2="10mm" />
</g>
</svg>

It renders well in the PDF from Firefox:

But Weasyprint uses default font family and size:

font1-firefox.svg.pdf
font1-weasyprint.svg.pdf

[febdoctor]

Replacing the "font" CSS property by specific properties like "font-size" and "font-family" works. This can be used as a workaround.

[liZe]

Hi, and thanks for the report!

This missing feature is caused by the dirty code used for SVG attributes management. We should use the real validated and computed values of SVG attributes and take care of font here:

WeasyPrint/weasyprint/svg/text.py

Lines 27 to 43 in a5d8412

	# TODO: use real computed values
	style = INITIAL_VALUES.copy()
	style['font_family'] = [
	font.strip('"\'') for font in
	node.get('font-family', 'sans-serif').split(',')]
	style['font_style'] = node.get('font-style', 'normal')
	style['font_weight'] = node.get('font-weight', 400)
	style['font_size'] = font_size
	if style['font_weight'] == 'normal':
	style['font_weight'] = 400
	elif style['font_weight'] == 'bold':
	style['font_weight'] = 700
	else:
	try:
	style['font_weight'] = int(style['font_weight'])
	except ValueError:
	style['font_weight'] = 400