tests/expected/calcbounds.svg
<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd" >
<svg xmlns="http://www.w3.org/2000/svg">
<defs>
<font id="calcbounds" horiz-adv-x="50">
<font-face font-family="calcbounds"
units-per-em="90" ascent="90"
descent="0" />
<missing-glyph horiz-adv-x="0" />
<glyph glyph-name="arrow-left"
unicode=""
horiz-adv-x="50" d="M0 15L50 60L50 -30z" />
<glyph glyph-name="arrow-right"
unicode=""
horiz-adv-x="50" d="M100 15L50 60L50 -30z" />
</font>
</defs>
</svg>