parseTransform() in simpletransform.py does not parse valid transformations

[Kjell Magne Fauske]

The parseTransform(transf,mat) function in simpletransform.py in the extension directory, contains several bugs. It should be able to parse all valid SVG transforms, but fails parsing basic expressions like:

matrix = parseTransform('rotate(10)')
matrix = parseTransform('skewY(10)')
matrix = parseTransform('translate(10 10)')
matrix = parseTransform(' rotate(10)')
matrix = parseTransform('translate(700,210) rotate(-30)')

I have attached a patch and unit tests that addresses all the above issues.

[Kjell Magne Fauske (kjellmf)]

I have written a few unit tests to ensure that the patch catches all of the parsing bugs. Note that the test only tests the parsing. The validity of the numerical output is not verified.

[bbyak (buliabyak)]

thanks, committed to svn