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venv/Lib/site-packages/fontTools/merge/options.py

@@ -0,0 +1,85 @@
+# Copyright 2013 Google, Inc. All Rights Reserved.
+#
+# Google Author(s): Behdad Esfahbod, Roozbeh Pournader
+
+
+class Options(object):
+
+	class UnknownOptionError(Exception):
+		pass
+
+	def __init__(self, **kwargs):
+
+		self.verbose = False
+		self.timing = False
+		self.drop_tables = []
+
+		self.set(**kwargs)
+
+	def set(self, **kwargs):
+		for k,v in kwargs.items():
+			if not hasattr(self, k):
+				raise self.UnknownOptionError("Unknown option '%s'" % k)
+			setattr(self, k, v)
+
+	def parse_opts(self, argv, ignore_unknown=[]):
+		ret = []
+		opts = {}
+		for a in argv:
+			orig_a = a
+			if not a.startswith('--'):
+				ret.append(a)
+				continue
+			a = a[2:]
+			i = a.find('=')
+			op = '='
+			if i == -1:
+				if a.startswith("no-"):
+					k = a[3:]
+					v = False
+				else:
+					k = a
+					v = True
+			else:
+				k = a[:i]
+				if k[-1] in "-+":
+					op = k[-1]+'='  # Ops is '-=' or '+=' now.
+					k = k[:-1]
+				v = a[i+1:]
+			ok = k
+			k = k.replace('-', '_')
+			if not hasattr(self, k):
+				if ignore_unknown is True or ok in ignore_unknown:
+					ret.append(orig_a)
+					continue
+				else:
+					raise self.UnknownOptionError("Unknown option '%s'" % a)
+
+			ov = getattr(self, k)
+			if isinstance(ov, bool):
+				v = bool(v)
+			elif isinstance(ov, int):
+				v = int(v)
+			elif isinstance(ov, list):
+				vv = v.split(',')
+				if vv == ['']:
+					vv = []
+				vv = [int(x, 0) if len(x) and x[0] in "0123456789" else x for x in vv]
+				if op == '=':
+					v = vv
+				elif op == '+=':
+					v = ov
+					v.extend(vv)
+				elif op == '-=':
+					v = ov
+					for x in vv:
+						if x in v:
+							v.remove(x)
+				else:
+					assert 0
+
+			opts[k] = v
+		self.set(**opts)
+
+		return ret
+