Adding kerning classes to the font

[mekkablue]

Hi, can anyone tell me why this does not work:

Code:

f = fl.font
thisclass = "_f_left: f' florin f_f fi fl f_f_i f_f_l"
f.classes.append(thisclass)

How do I append a class to fl.font.classes, which is a list of strings?
TIA, Eric.

[Eigi]

Hello,

try this:

Code:

classes = list(fl.font.classes)
thisclass = "_f_left: f' florin f_f fi fl f_f_i f_f_l"
classes.append(thisclass)
fl.font.classes = classes
fl.UpdateFont(fl.ifont)

[mekkablue]

Thanks, Eigi, I’ll try it.

[emtype]

Eigi,

your code works well but it create a class that don't have information about left or rigth side...

Do you know any way to import the classes file (.flc) by Python ?

thank you, em.

[Eigi]

Hello,

you can use this code to set the left / right flags for kerning classes:

Code:

for class_index in range(len(fl.font.classes)):
name, content = fl.font.classes[class_index].split(':', 1)
if name.startswith('_'):         # it is a kerning class
left = 0
right = 0
if name.endswith('_left'):     # left only class
left = 1
elif name.endswith('_right'):  # right only class
right = 1
else:                          # double sided class
left = 1
right = 1
fl.font.SetClassFlags(class_index, left, right)
fl.UpdateFont(fl.ifont)

Best

Eigi

[emtype]

Eigi, you are a genious!

Now I can go and back from FontLab to Superpolator without lose this vital info.

Thank you, em.

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