from __future__ import unicode_literals, print_function, absolute_import

"""An example bpython repl without a nice UI for testing and to demonstrate

the methods of bpython.curtsiesrepl.repl.BaseRepl that must be overridden.

"""

import time

import logging

from bpython.curtsiesfrontend.repl import BaseRepl

from bpython.curtsiesfrontend import events as bpythonevents

from bpython import translations

from bpython import importcompletion

from curtsies.configfile_keynames import keymap as key_dispatch

logger = logging.getLogger(__name__)

class SimpleRepl(BaseRepl):

def __init__(self):

self.requested_events = []

BaseRepl.__init__(self)

def _request_refresh(self):

self.requested_events.append(bpythonevents.RefreshRequestEvent())

def _schedule_refresh(self, when='now'):

if when == 'now':

self.request_refresh()

else:

self.my_print('please refresh in '+str(round(when - time.time(), 1))+' seconds')

def _request_reload(self, files_modified=('?',)):

e = bpythonevents.ReloadEvent()

e.files_modified = files_modified

self.requested_events.append(e)

self.my_print('please hit enter to trigger a refresh')

def request_undo(self, n=1):

self.requested_events.append(bpythonevents.UndoEvent(n=n))

def my_print(self, msg):

if hasattr(self, 'orig_stdout'):

self.orig_stdout.write((msg+'\n').encode('utf8'))

self.orig_stdout.flush()

else:

print(msg)

def on_suspend(self):

pass

def after_suspend(self):

self.my_print('please hit enter to trigger a refresh')

def print_output(self):

arr, cpos = self.paint()

arr[cpos[0]:cpos[0]+1, cpos[1]:cpos[1]+1] = ['~']

self.my_print('X'*(self.width+8))

self.my_print(' enter -> "/", rewind -> "\\", '.center(self.width+8, 'X'))

self.my_print(' reload -> "|", pastebin -> "$", '.center(self.width+8, 'X'))

self.my_print(' "~" is the cursor '.center(self.width+8, 'X'))

self.my_print('X'*(self.width+8))

self.my_print('X``'+('`'*(self.width+2))+'``X')

for line in arr:

self.my_print('X```'+unicode(line.ljust(self.width))+'```X')

logger.debug('line:')

logger.debug(repr(line))

self.my_print('X``'+('`'*(self.width+2))+'``X')

self.my_print('X'*(self.width+8))

return max(len(arr) - self.height, 0)

def get_input(self):

chars = list(self.orig_stdin.readline()[:-1])

while chars or self.requested_events:

if self.requested_events:

self.process_event(self.requested_events.pop())

continue

c = chars.pop(0)

if c in '/':

c = '\n'

elif c in '\\':

c = key_dispatch[self.config.undo_key][0]

elif c in '$':

c = key_dispatch[self.config.pastebin_key][0]

elif c in '|':

c = key_dispatch[self.config.reimport_key][0]

self.process_event(c)

def main(args=None, locals_=None, banner=None):

translations.init()

while importcompletion.find_coroutine():

pass

with SimpleRepl() as r:

r.width = 50

r.height = 10

while True:

r.print_output()

r.get_input()

if __name__ == '__main__':

main()