def help(self, *args):
"""
display help text
(command)?
"""
commands = self.commands()
if args:
if args[0] not in commands:
raise self.UnknownCommandError(args[0])
commands = args[:1]
self.shell.log.append('<span class="grey">help: </span> <span class="blue">{0}</span>'.format(args[0]))
else:
self.shell.log.append('<span class="grey">help</span>')
self.shell.log.append()
self.shell.log.append('<span class="grey">{0}</span>'.format(
Utilities.tab(('command', 'parameters', 'functions'))))
for command in commands:
# doc[0]: function
# doc[1]: empty
# doc[2]: parameters
# doc[3]: details
doc = ['not documented', '', '', '']
docstring = eval('self.{0}'.format(command)).__doc__
if docstring:
for i, d in enumerate(d.strip() for d in docstring.strip().splitlines()):
doc[i] = d
self.shell.log.append(Utilities.tab((command, doc[2], doc[0])))
if args and doc[3]:
self.shell.log.append()
self.shell.log.append(doc[3])
self.shell.log.append()
