[sheet-] both names and name setter will set both _names and _name

visidata/basesheet.py

@@ -112,9 +112,9 @@ def _class_options(cls):
 
  def __init__(self, *names, rows=UNLOADED, **kwargs):
  self._name = None # initial cache value necessary for self.options
+ self._names = []
  self.loading = False
  self.names = list(names)
- self.name = self.options.name_joiner.join(str(x) for x in self.names if x)
  self.source = None
  self.rows = rows # list of opaque objects
  self._scr = None
@@ -238,8 +238,10 @@ def names(self):
 
  @names.setter
  def names(self, names):
+ if self._names:
+ vd.addUndo(setattr, self, 'names', self._names)
  self._names = names
- self.name = self.options.name_joiner.join(self.maybeClean(str(x)) for x in self._names)
+ self._name = self.options.name_joiner.join(self.maybeClean(str(x)) for x in self._names)
 
  @property
  def name(self):
@@ -250,9 +252,9 @@ def name(self):
  def name(self, name):
  'Set name without spaces.'
  if self._names:
- vd.addUndo(setattr, self, '_names', self._names)
+ vd.addUndo(setattr, self, 'names', self._names)
  self._name = self.maybeClean(str(name))
- self._names = self._name.split(self.options.name_joiner)
+ self._names = [self._name]
 
  def maybeClean(self, s):
  'stub'