def __init__(self, greet, load):
""" Initialise the interpreter session. """
# true if a prompt is needed on next cycle
self.prompt = True
# input mode is AUTO (used by AUTO)
state.basic_state.auto_mode = False
# interpreter is executing a command
state.basic_state.parse_mode = False
# interpreter is waiting for INPUT or LINE INPUT
state.basic_state.input_mode = False
# previous interpreter mode
self.last_mode = False, False
# syntax error prompt and EDIT
state.basic_state.edit_prompt = False
# initialise the display
display.init()
# initialise the console
console.init_mode()
# set up event handlers
state.basic_state.events = events.Events()
# load initial program
if load:
# on load, accept capitalised versions and default extension
with disk.open_native_or_dos_filename(load) as progfile:
program.load(progfile)
# set up interpreter and memory model state
reset.clear()
# greeting and keys
if greet:
console.clear()
console.write_line(greeting.format(version=plat.version, free=var.fre()))
console.show_keys(True)
def bluescreen(e):
""" Display a modal exception message. """
state.console_state.screen.screen(0, 0, 0, 0, new_width=80)
console.clear()
console.init_mode()
exc_type, exc_value, exc_traceback = sys.exc_info()
# log the standard python error
logging.error(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
# format the error more readably on the screen
state.console_state.screen.set_border(4)
state.console_state.screen.set_attr(0x70)
console.write_line('EXCEPTION')
state.console_state.screen.set_attr(15)
if state.basic_state.run_mode:
state.basic_state.bytecode.seek(-1, 1)
program.edit(program.get_line_number(state.basic_state.bytecode.tell()),
state.basic_state.bytecode.tell())
console.write_line('\n')
else:
state.basic_state.direct_line.seek(0)
console.write_line(str(tokenise.detokenise_compound_statement(state.basic_state.direct_line)[0])+'\n')
stack = traceback.extract_tb(exc_traceback)
for s in stack[-4:]:
stack_line = '{0}:{1}, {2}'.format(
os.path.split(s[0])[-1], s[1], s[2])
stack_line_2 = ' {0}'.format(s[3])
state.console_state.screen.set_attr(15)
console.write_line(stack_line)
state.console_state.screen.set_attr(7)
console.write_line(stack_line_2)
exc_message = traceback.format_exception_only(exc_type, exc_value)[0]
state.console_state.screen.set_attr(15)
console.write('{0}:'.format(exc_type.__name__))
state.console_state.screen.set_attr(7)
console.write_line(' {0}'.format(str(exc_value)))
state.console_state.screen.set_attr(0x70)
console.write_line(
'\nThis is a bug in PC-BASIC.')
state.console_state.screen.set_attr(7)
console.write(
'Sorry about that. Please send the above messages to the bugs forum\nby e-mail to ')
state.console_state.screen.set_attr(15)
console.write(
'*****@*****.**')
state.console_state.screen.set_attr(7)
console.write(
' or by filing a bug\nreport at ')
state.console_state.screen.set_attr(15)
console.write(
'https://github.com/robhagemans/pcbasic/issues')
state.console_state.screen.set_attr(7)
console.write_line(
'. Please include')
console.write_line('as much information as you can about what you were doing and how this happened.')
console.write_line('Thank you!')
state.console_state.screen.set_attr(7)
flow.set_pointer(False)
def bluescreen(e):
""" Display a modal exception message. """
state.console_state.screen.screen(0, 0, 0, 0, new_width=80)
console.clear()
console.init_mode()
exc_type, exc_value, exc_traceback = sys.exc_info()
# log the standard python error
logging.error(''.join(traceback.format_exception(exc_type, exc_value, exc_traceback)))
# format the error more readably on the screen
state.console_state.screen.set_border(4)
state.console_state.screen.set_attr(0x70)
console.write_line('EXCEPTION')
state.console_state.screen.set_attr(15)
if state.basic_state.run_mode:
state.basic_state.bytecode.seek(-1, 1)
program.edit(program.get_line_number(state.basic_state.bytecode.tell()),
state.basic_state.bytecode.tell())
console.write_line('\n')
else:
state.basic_state.direct_line.seek(0)
console.write_line(str(tokenise.detokenise_compound_statement(state.basic_state.direct_line)[0])+'\n')
stack = traceback.extract_tb(exc_traceback)
for s in stack[-4:]:
stack_line = '{0}:{1}, {2}'.format(
os.path.split(s[0])[-1], s[1], s[2])
stack_line_2 = ' {0}'.format(s[3])
state.console_state.screen.set_attr(15)
console.write_line(stack_line)
state.console_state.screen.set_attr(7)
console.write_line(stack_line_2)
exc_message = traceback.format_exception_only(exc_type, exc_value)[0]
state.console_state.screen.set_attr(15)
console.write('{0}:'.format(exc_type.__name__))
state.console_state.screen.set_attr(7)
console.write_line(' {0}'.format(str(exc_value)))
state.console_state.screen.set_attr(0x70)
console.write_line(
'\nThis is a bug in PC-BASIC.')
state.console_state.screen.set_attr(7)
console.write(
'Sorry about that. Please send the above messages to the bugs forum\nby e-mail to ')
state.console_state.screen.set_attr(15)
console.write(
'*****@*****.**')
state.console_state.screen.set_attr(7)
console.write(
' or by filing a bug\nreport at ')
state.console_state.screen.set_attr(15)
console.write(
'https://github.com/robhagemans/pcbasic/issues')
state.console_state.screen.set_attr(7)
console.write_line(
'. Please include')
console.write_line('as much information as you can about what you were doing and how this happened.')
console.write_line('Thank you!')
state.console_state.screen.set_attr(7)
flow.set_pointer(False)
def prepare_console():
""" Initialise backend and console. """
import state
import backend
import display
import sound
import console
# we need this prepared for input to work,
# even if we don't use any function from it
import inputs
interface = config.get('interface') or 'graphical'
display.init(interface)
sound.init('none' if config.get('nosound') else interface)
if not state.loaded:
console.init_mode()
return backend, console
def prepare_console():
""" Initialise backend and console. """
import state
import backend
import display
import sound
import console
# we need this prepared for input to work,
# even if we don't use any function from it
import inputs
interface = config.get('interface') or 'graphical'
display.init(interface)
sound.init('none' if config.get('nosound') else interface)
if not state.loaded:
console.init_mode()
return backend, console
def prepare_console():
""" Initialise backend and console. """
import state
import backend
import sound
# load backend modules
# this can't be done in backend.py as it would create circular dependency
import console
import error
import fp
# we need this prepared for input to work,
# even if we don't use any function from it
import redirect
# hack: mark modules for inclusion by pyinstaller
# see https://groups.google.com/forum/#!topic/pyinstaller/S8QgHXiGJ_A
if False:
import video_none
import video_curses
import video_ansi
import video_cli
import video_pygame
import audio_none
import audio_beep
import audio_pygame
backends = {
'none': ('video_none', 'audio_none'),
'cli': ('video_cli', 'audio_beep'),
'text': ('video_curses', 'audio_beep'),
'ansi': ('video_ansi', 'audio_beep'),
'graphical': ('video_pygame', 'audio_pygame'),
}
if not config.get('interface'):
config.options['interface'] = 'graphical'
# select interface
video_name, audio_name = backends[config.get('interface')]
# initialise video backend before console
while True:
try:
# __name__ global is needed when calling from setuptools package
video = __import__(video_name, globals={"__name__": __name__})
except ImportError as e:
video = None
if not video:
if not video_name or video_name == 'video_none':
logging.error('Failed to initialise interface.')
raise error.Exit()
logging.error('Could not load module %s.', video_name)
video_name = 'video_none'
continue
if backend.init_video(video):
break
else:
video_name = video.fallback
if video:
video.close()
if video_name:
logging.info('Falling back to %s interface.', video_name)
if config.get('nosound'):
sound.audio = __import__('audio_none', globals={"__name__": __name__})
else:
sound.audio = __import__(audio_name, globals={"__name__": __name__})
if not sound.init():
sound.audio = __import__('audio_none', globals={"__name__": __name__})
sound.init()
logging.warning(
'Failed to initialise sound. Sound will be disabled.\r')
if not state.loaded:
console.init_mode()
# set the output for maths error messages
fp.init(error_stream=console)
return backend, console
def prepare_console():
""" Initialise backend and console. """
import state
import backend
import sound
# load backend modules
# this can't be done in backend.py as it would create circular dependency
import console
import error
import fp
# we need this prepared for input to work,
# even if we don't use any function from it
import redirect
# hack: mark modules for inclusion by pyinstaller
# see https://groups.google.com/forum/#!topic/pyinstaller/S8QgHXiGJ_A
if False:
import video_none
import video_curses
import video_ansi
import video_cli
import video_pygame
import audio_none
import audio_beep
import audio_pygame
backends = {
'none': ('video_none', 'audio_none'),
'cli': ('video_cli', 'audio_beep'),
'text': ('video_curses', 'audio_beep'),
'ansi': ('video_ansi', 'audio_beep'),
'graphical': ('video_pygame', 'audio_pygame'),
}
if not config.get('interface'):
config.options['interface'] = 'graphical'
# select interface
video_name, audio_name = backends[config.get('interface')]
# initialise video backend before console
while True:
try:
# __name__ global is needed when calling from setuptools package
video = __import__(video_name, globals={"__name__": __name__})
except ImportError as e:
video = None
if not video:
if not video_name or video_name == 'video_none':
logging.error('Failed to initialise interface.')
raise error.Exit()
logging.error('Could not load module %s.', video_name)
video_name = 'video_none'
continue
if backend.init_video(video):
break
else:
video_name = video.fallback
if video:
video.close()
if video_name:
logging.info('Falling back to %s interface.', video_name)
if config.get('nosound'):
sound.audio = __import__('audio_none', globals={"__name__": __name__})
else:
sound.audio = __import__(audio_name, globals={"__name__": __name__})
if not sound.init():
sound.audio = __import__('audio_none', globals={"__name__": __name__})
sound.init()
logging.warning('Failed to initialise sound. Sound will be disabled.\r')
if not state.loaded:
console.init_mode()
# set the output for maths error messages
fp.init(error_stream=console)
return backend, console