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diagrams / SVGFonts

Fonts from the SVG-Font format
http://hackage.haskell.org/package/SVGFonts
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Avoid head #27

Closed phadej closed 6 years ago

phadej commented 6 years ago

now instead of

Prelude.head: empty list

we get

no <font>-tag found in SVG file using SVGFonts library.Most likely wrong namespace in <svg>-tag. Please delete xmlns=...
CallStack (from HasCallStack):
  error, called at src/Graphics/SVGFonts/ReadFont.hs:98:19 in SVGFonts-1.7-inplace:Graphics.SVGFonts.ReadFont

I'd prefer Either, than hidden exception, but this is already an improvement.

tkvogt commented 6 years ago

Yes.