612 		layerNames = [layerName for layerName, directoryName in layerContents]
625 		for layerName, layerDirectory in layerContents:
627 				return layerName
631 	def getGlyphSet(self, layerName=None, validateRead=None, validateWrite=None):  argument
650 		if layerName is None:
651 			layerName = self.getDefaultLayerName(validate=validateRead)
655 			if layerName == storedLayerName:
659 			raise UFOLibError("No glyphs directory is mapped to \"%s\"." % layerName)
664 				"No '%s' directory for layer '%s'" % (directory, layerName)
673 	def getCharacterMapping(self, layerName=None, validate=None):  argument
680 		glyphSet = self.getGlyphSet(layerName, validateRead=validate, validateWrite=True)
1324 			for layerName in layerOrder:
1325 				if layerName is None:
1326 					layerName = DEFAULT_LAYER_NAME
1328 					layerName = tounicode(layerName)
1329 				newOrder.append(layerName)
1335 		layerContents = [(layerName, self.layerContents[layerName]) for layerName in layerOrder]
1338 	def _findDirectoryForLayerName(self, layerName):  argument
1341 			if layerName is None and directoryName == DEFAULT_GLYPHS_DIRNAME:
1344 			elif existingLayerName == layerName:
1348 			raise UFOLibError("Could not locate a glyph set directory for the layer named %s." % layerName)
1351 …def getGlyphSet(self, layerName=None, defaultLayer=True, glyphNameToFileNameFunc=None, validateRea…  argument
1370 		if self._formatVersion < 3 and (not defaultLayer or layerName is not None):
1373 		if layerName is None and defaultLayer:
1376 					layerName = existingLayerName
1377 			if layerName is None:
1378 				layerName = DEFAULT_LAYER_NAME
1379 		elif layerName is None and not defaultLayer:
1387 …return self._getGlyphSetFormatVersion3(validateRead, validateWrite, layerName=layerName, defaultLa…
1415 …def _getGlyphSetFormatVersion3(self, validateRead, validateWrite, layerName=None, defaultLayer=Tru…  argument
1424 					if existingLayerName != layerName:
1429 				elif existingLayerName == layerName:
1432 		if layerName in self.layerContents:
1433 			directory = self.layerContents[layerName]
1442 				if not isinstance(layerName, unicode):
1444 						layerName = unicode(layerName)
1447 				directory = userNameToFileName(layerName, existing=existing, prefix="glyphs.")
1451 		self.layerContents[layerName] = directory
1461 	def renameGlyphSet(self, layerName, newLayerName, defaultLayer=False):  argument
1475 		if layerName == newLayerName:
1477 			if self.layerContents[layerName] != DEFAULT_GLYPHS_DIRNAME and not defaultLayer:
1480 			if self.layerContents[layerName] == DEFAULT_GLYPHS_DIRNAME and defaultLayer:
1492 		oldDirectory = self._findDirectoryForLayerName(layerName)
1499 		del self.layerContents[layerName]
1504 	def deleteGlyphSet(self, layerName):  argument
1512 		foundDirectory = self._findDirectoryForLayerName(layerName)
1514 		del self.layerContents[layerName]