107 lines
2.6 KiB
Python
107 lines
2.6 KiB
Python
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import fontTools.ttLib as ttLib
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from fontTools.ttLib.ttVisitor import TTVisitor
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from fontTools.misc.textTools import Tag
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class JsonVisitor(TTVisitor):
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def _open(self, s):
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print(s, file=self.file)
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self._indent += self.indent
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def _close(self, s):
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self._indent = self._indent[:-len(self.indent)]
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print("%s%s," % (self._indent, s), file=self.file)
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def __init__(self, file, indent=" "):
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self.file = file
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self.indent = indent
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self._indent = ""
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def visitObject(self, obj):
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self._open("{")
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super().visitObject(obj)
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print('%s"type": "%s"' % (self._indent, obj.__class__.__name__), file=self.file)
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self._close("}")
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def visitAttr(self, obj, attr, value):
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print('%s"%s": ' % (self._indent, attr), end="", file=self.file)
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self.visit(value)
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def visitList(self, obj, *args, **kwargs):
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self._open("[")
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for value in obj:
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print(self._indent, end="", file=self.file)
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self.visit(value, *args, **kwargs)
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self._close("]")
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def visitDict(self, obj, *args, **kwargs):
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self._open("{")
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for key, value in obj.items():
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print('%s"%s": ' % (self._indent, key), end="", file=self.file)
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self.visit(value, *args, **kwargs)
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self._close("}")
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def visitLeaf(self, obj):
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if isinstance(obj, tuple):
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obj = list(obj)
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if isinstance(obj, bytes):
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s = repr(obj)
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s = s[1:]
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else:
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s = repr(obj)
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if s[0] == "'":
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s = '"' + s[1:-1] + '"'
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print("%s," % s, file=self.file)
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@JsonVisitor.register(ttLib.TTFont)
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def visit(self, font):
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if hasattr(visitor, "font"):
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return False
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visitor.font = font
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self._open("{")
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for tag in font.keys():
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print('%s"%s": ' % (self._indent, tag), end="", file=self.file)
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visitor.visit(font[tag])
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self._close("}")
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del visitor.font
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return False
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@JsonVisitor.register_attr(ttLib.getTableClass("glyf"), "glyphOrder")
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def visit(visitor, obj, attr, value):
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return False
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@JsonVisitor.register(ttLib.getTableModule("glyf").GlyphCoordinates)
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def visit(self, obj):
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self.visitList(obj)
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return False
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@JsonVisitor.register(Tag)
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def visit(self, obj):
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print('"%s",' % str(obj), file=self.file)
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return False
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if __name__ == "__main__":
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from fontTools.ttLib import TTFont
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import sys
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if len(sys.argv) != 2:
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print("usage: print-json.py font")
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sys.exit()
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font = TTFont(sys.argv[1])
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visitor = JsonVisitor(sys.stdout)
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visitor.visit(font)
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