def test_exception(self):
c = CodeRunner(request_refresh=lambda: self.orig_stdout.flush() or
self.orig_stderr.flush())
def ctrlc():
raise KeyboardInterrupt()
stdout = FakeOutput(c, lambda x: ctrlc())
stderr = FakeOutput(c, lambda *args, **kwargs: None)
sys.stdout = stdout
sys.stderr = stderr
c.load_code('1 + 1')
c.run_code()
def test_simple(self):
c = CodeRunner(request_refresh=lambda: self.orig_stdout.flush() or self
.orig_stderr.flush())
stdout = FakeOutput(c, lambda *args, **kwargs: None, None)
stderr = FakeOutput(c, lambda *args, **kwargs: None, None)
sys.stdout = stdout
sys.stdout = stderr
c.load_code("1 + 1")
c.run_code()
c.run_code()
c.run_code()
def test_simple(self):
c = CodeRunner(request_refresh=lambda: self.orig_stdout.flush() or
self.orig_stderr.flush())
stdout = FakeOutput(c, lambda *args, **kwargs: None)
stderr = FakeOutput(c, lambda *args, **kwargs: None)
sys.stdout = stdout
sys.stdout = stderr
c.load_code('1 + 1')
c.run_code()
c.run_code()
c.run_code()
def test_exception(self):
c = CodeRunner(request_refresh=lambda: self.orig_stdout.flush() or self
.orig_stderr.flush())
def ctrlc():
raise KeyboardInterrupt()
stdout = FakeOutput(c, lambda x: ctrlc(), None)
stderr = FakeOutput(c, lambda *args, **kwargs: None, None)
sys.stdout = stdout
sys.stderr = stderr
c.load_code("1 + 1")
c.run_code()
def __init__(self, locals_=None, config=None, request_refresh=lambda: None, banner=None, interp=None):
"""
locals_ is a mapping of locals to pass into the interpreter
config is a bpython config.Struct with config attributes
request_refresh is a function that will be called when the Repl
wants to refresh the display, but wants control returned to it afterwards
banner is a string to display briefly in the status bar
interp is an interpreter to use
"""
logging.debug("starting init")
if config is None:
config = Struct()
loadini(config, default_config_path())
self.weak_rewind = bool(locals_ or interp) # If creating a new interpreter on undo
# would be unsafe because initial
# state was passed in
if interp is None:
interp = code.InteractiveInterpreter(locals=locals_)
if banner is None:
banner = _('welcome to bpython')
config.autocomplete_mode = SIMPLE # only one implemented currently
if config.cli_suggestion_width <= 0 or config.cli_suggestion_width > 1:
config.cli_suggestion_width = 1
self.reevaluating = False
self.fake_refresh_requested = False
def smarter_request_refresh():
if self.reevaluating or self.paste_mode:
self.fake_refresh_requested = True
else:
request_refresh()
self.request_refresh = smarter_request_refresh
self.status_bar = StatusBar(banner if config.curtsies_fill_terminal else '', _(
" <%s> Rewind <%s> Save <%s> Pastebin <%s> Editor"
) % (config.undo_key, config.save_key, config.pastebin_key, config.external_editor_key),
refresh_request=self.request_refresh
)
self.rl_char_sequences = get_updated_char_sequences(key_dispatch, config)
logging.debug("starting parent init")
super(Repl, self).__init__(interp, config)
self.formatter = BPythonFormatter(config.color_scheme)
self.interact = self.status_bar # overwriting what bpython.Repl put there
# interact is called to interact with the status bar,
# so we're just using the same object
self._current_line = '' # line currently being edited, without '>>> '
self.current_stdouterr_line = '' # current line of output - stdout and stdin go here
self.display_lines = [] # lines separated whenever logical line
# length goes over what the terminal width
# was at the time of original output
self.history = [] # this is every line that's been executed;
# it gets smaller on rewind
self.display_buffer = [] # formatted version of lines in the buffer
# kept around so we can unhighlight parens
# using self.reprint_line as called by
# bpython.Repl
self.scroll_offset = 0 # how many times display has been scrolled down
# because there wasn't room to display everything
self.cursor_offset_in_line = 0 # from the left, 0 means first char
self.coderunner = CodeRunner(self.interp, self.request_refresh)
self.stdout = FakeOutput(self.coderunner, self.send_to_stdout)
self.stderr = FakeOutput(self.coderunner, self.send_to_stderr)
self.stdin = FakeStdin(self.coderunner, self)
self.request_paint_to_clear_screen = False # next paint should clear screen
self.last_events = [None] * 50
self.presentation_mode = False
self.paste_mode = False
self.width = None # will both be set by a window resize event
self.height = None
class Repl(BpythonRepl):
"""Python Repl
Reacts to events like
-terminal dimensions and change events
-keystrokes
Behavior altered by
-number of scroll downs that were necessary to render array after each display
-initial cursor position
outputs:
-2D array to be rendered
Repl is mostly view-independent state of Repl - but self.width and self.height
are important for figuring out how to wrap lines for example.
Usually self.width and self.height should be set by receiving a window resize event,
not manually set to anything - as long as the first event received is a window
resize event, this works fine.
"""
## initialization, cleanup
def __init__(self, locals_=None, config=None, request_refresh=lambda: None, banner=None, interp=None):
"""
locals_ is a mapping of locals to pass into the interpreter
config is a bpython config.Struct with config attributes
request_refresh is a function that will be called when the Repl
wants to refresh the display, but wants control returned to it afterwards
banner is a string to display briefly in the status bar
interp is an interpreter to use
"""
logging.debug("starting init")
if config is None:
config = Struct()
loadini(config, default_config_path())
self.weak_rewind = bool(locals_ or interp) # If creating a new interpreter on undo
# would be unsafe because initial
# state was passed in
if interp is None:
interp = code.InteractiveInterpreter(locals=locals_)
if banner is None:
banner = _('welcome to bpython')
config.autocomplete_mode = SIMPLE # only one implemented currently
if config.cli_suggestion_width <= 0 or config.cli_suggestion_width > 1:
config.cli_suggestion_width = 1
self.reevaluating = False
self.fake_refresh_requested = False
def smarter_request_refresh():
if self.reevaluating or self.paste_mode:
self.fake_refresh_requested = True
else:
request_refresh()
self.request_refresh = smarter_request_refresh
self.status_bar = StatusBar(banner if config.curtsies_fill_terminal else '', _(
" <%s> Rewind <%s> Save <%s> Pastebin <%s> Editor"
) % (config.undo_key, config.save_key, config.pastebin_key, config.external_editor_key),
refresh_request=self.request_refresh
)
self.rl_char_sequences = get_updated_char_sequences(key_dispatch, config)
logging.debug("starting parent init")
super(Repl, self).__init__(interp, config)
self.formatter = BPythonFormatter(config.color_scheme)
self.interact = self.status_bar # overwriting what bpython.Repl put there
# interact is called to interact with the status bar,
# so we're just using the same object
self._current_line = '' # line currently being edited, without '>>> '
self.current_stdouterr_line = '' # current line of output - stdout and stdin go here
self.display_lines = [] # lines separated whenever logical line
# length goes over what the terminal width
# was at the time of original output
self.history = [] # this is every line that's been executed;
# it gets smaller on rewind
self.display_buffer = [] # formatted version of lines in the buffer
# kept around so we can unhighlight parens
# using self.reprint_line as called by
# bpython.Repl
self.scroll_offset = 0 # how many times display has been scrolled down
# because there wasn't room to display everything
self.cursor_offset_in_line = 0 # from the left, 0 means first char
self.coderunner = CodeRunner(self.interp, self.request_refresh)
self.stdout = FakeOutput(self.coderunner, self.send_to_stdout)
self.stderr = FakeOutput(self.coderunner, self.send_to_stderr)
self.stdin = FakeStdin(self.coderunner, self)
self.request_paint_to_clear_screen = False # next paint should clear screen
self.last_events = [None] * 50
self.presentation_mode = False
self.paste_mode = False
self.width = None # will both be set by a window resize event
self.height = None
def __enter__(self):
self.orig_stdout = sys.stdout
self.orig_stderr = sys.stderr
self.orig_stdin = sys.stdin
sys.stdout = self.stdout
sys.stderr = self.stderr
sys.stdin = self.stdin
return self
def __exit__(self, *args):
sys.stdin = self.orig_stdin
sys.stdout = self.orig_stdout
sys.stderr = self.orig_stderr
def clean_up_current_line_for_exit(self):
"""Called when trying to exit to prep for final paint"""
logging.debug('unhighlighting paren for exit')
self.cursor_offset_in_line = -1
self.unhighlight_paren()
## Event handling
def process_event(self, e):
"""Returns True if shutting down, otherwise returns None.
Mostly mutates state of Repl object"""
# event names uses here are curses compatible, or the full names
# for a full list of what should have pretty names, see curtsies.events.CURSES_TABLE
if not isinstance(e, events.Event):
self.last_events.append(e)
self.last_events.pop(0)
logging.debug("processing event %r", e)
if isinstance(e, events.RefreshRequestEvent):
if self.status_bar.has_focus:
self.status_bar.process_event(e)
else:
assert self.coderunner.code_is_waiting
self.run_code_and_maybe_finish()
elif isinstance(e, events.WindowChangeEvent):
logging.debug('window change to %d %d', e.width, e.height)
self.scroll_offset -= e.cursor_dy
self.width, self.height = e.width, e.height
elif self.status_bar.has_focus:
return self.status_bar.process_event(e)
# handles paste events for both stdin and repl
elif isinstance(e, events.PasteEvent):
ctrl_char = compress_paste_event(e)
if ctrl_char is not None:
return self.process_event(ctrl_char)
with self.in_paste_mode():
for ee in e.events:
if self.stdin.has_focus:
self.stdin.process_event(ee)
else:
self.process_simple_event(ee)
self.update_completion()
elif self.stdin.has_focus:
return self.stdin.process_event(e)
elif isinstance(e, events.SigIntEvent):
logging.debug('received sigint event')
self.keyboard_interrupt()
self.update_completion()
return
elif e in self.rl_char_sequences:
self.cursor_offset_in_line, self._current_line = self.rl_char_sequences[e](self.cursor_offset_in_line, self._current_line)
self.update_completion()
# readline history commands
elif e in ("KEY_UP",) + key_dispatch[self.config.up_one_line_key]:
self.rl_history.enter(self._current_line)
self._current_line = self.rl_history.back(False)
self.cursor_offset_in_line = len(self._current_line)
self.update_completion()
elif e in ("KEY_DOWN",) + key_dispatch[self.config.down_one_line_key]:
self.rl_history.enter(self._current_line)
self._current_line = self.rl_history.forward(False)
self.cursor_offset_in_line = len(self._current_line)
self.update_completion()
elif e in key_dispatch[self.config.search_key]: #TODO Not Implemented
pass
#TODO add rest of history commands
# Need to figure out what these are, but I think they belong in manual_realine
# under slightly different names
elif e in key_dispatch[self.config.cut_to_buffer_key]: #TODO Not Implemented
pass
elif e in key_dispatch[self.config.yank_from_buffer_key]: #TODO Not Implemented
pass
elif e in key_dispatch[self.config.clear_screen_key]:
self.request_paint_to_clear_screen = True
elif e in key_dispatch[self.config.last_output_key]: #TODO Not Implemented
pass
elif e in key_dispatch[self.config.show_source_key]: #TODO Not Implemented
pass
elif e in key_dispatch[self.config.suspend_key]:
raise SystemExit()
elif e in ("",) + key_dispatch[self.config.exit_key]:
if self._current_line == '':
raise SystemExit()
elif e in ("\n", "\r", "PAD_ENTER"):
self.on_enter()
self.update_completion()
elif e == '\t': # tab
self.on_tab()
elif e in ("KEY_BTAB",): # shift-tab
self.on_tab(back=True)
elif e in key_dispatch[self.config.undo_key]: #ctrl-r for undo
self.undo()
self.update_completion()
elif e in key_dispatch[self.config.save_key]: # ctrl-s for save
g = greenlet.greenlet(self.write2file)
g.switch()
# F8 for pastebin
elif e in key_dispatch[self.config.pastebin_key]:
g = greenlet.greenlet(self.pastebin)
g.switch()
elif e in key_dispatch[self.config.external_editor_key]:
self.send_session_to_external_editor()
#TODO add PAD keys hack as in bpython.cli
elif e in ["\x18"]:
self.send_current_block_to_external_editor()
elif e in ["\x1b"]: #ESC
pass
else:
self.add_normal_character(e)
self.update_completion()
def on_enter(self, insert_into_history=True):
self.cursor_offset_in_line = -1 # so the cursor isn't touching a paren
self.unhighlight_paren() # in unhighlight_paren
self.highlighted_paren = None
self.rl_history.append(self._current_line)
self.rl_history.last()
self.history.append(self._current_line)
line = self._current_line
#self._current_line = ''
self.push(line, insert_into_history=insert_into_history)
def on_tab(self, back=False):
"""Do something on tab key
taken from bpython.cli
Does one of the following:
1) add space to move up to the next %4==0 column
2) complete the current word with characters common to all completions and
3) select the first or last match
4) select the next or previous match if already have a match
"""
def only_whitespace_left_of_cursor():
"""returns true if all characters on current line before cursor are whitespace"""
return self._current_line[:self.cursor_offset_in_line].strip()
logging.debug('self.matches: %r', self.matches)
if not only_whitespace_left_of_cursor():
front_white = (len(self._current_line[:self.cursor_offset_in_line]) -
len(self._current_line[:self.cursor_offset_in_line].lstrip()))
to_add = 4 - (front_white % self.config.tab_length)
for _ in range(to_add):
self.add_normal_character(' ')
return
#TODO I'm not sure what's going on in the next 10 lines, particularly list_win_visible
# get the (manually typed or common-sequence completed from manually typed) current word
if self.matches_iter:
cw = self.matches_iter.current_word
else:
self.complete(tab=True) #TODO why do we call this here?
if not self.config.auto_display_list and not self.list_win_visible:
return True #TODO why?
cw = self.current_string() or self.current_word
logging.debug('current string: %r', self.current_string())
logging.debug('current word: %r', self.current_word)
if not cw:
return
# check to see if we can expand the current word
cseq = os.path.commonprefix(self.matches)
expanded_string = cseq[len(cw):]
if expanded_string:
self.current_word = cw + expanded_string #asdf
self.matches_iter.update(cseq, self.matches)
return
if self.matches:
self.current_word = (self.matches_iter.previous()
if back else self.matches_iter.next())
def process_simple_event(self, e):
if e in ("\n", "\r", "PAD_ENTER"):
self.on_enter()
while self.fake_refresh_requested:
self.fake_refresh_requested = False
self.process_event(events.RefreshRequestEvent())
elif isinstance(e, events.Event):
pass # ignore events
else:
self.add_normal_character(e)
def send_current_block_to_external_editor(self, filename=None):
text = self.send_to_external_editor(self.get_current_block())
lines = [line for line in text.split('\n')]
while lines and not lines[-1].split():
lines.pop()
events = '\n'.join(lines + ([''] if len(lines) == 1 else ['', '']))
self.clear_current_block()
with self.in_paste_mode():
for e in events:
self.process_simple_event(e)
self._current_line = ''
self.cursor_offset_in_line = len(self._current_line)
def send_session_to_external_editor(self, filename=None):
for_editor = '### current bpython session - file will be reevaluated, ### lines will not be run\n'.encode('utf8')
for_editor += ('\n'.join(line[4:] if line[:4] in ('... ', '>>> ') else '### '+line
for line in self.getstdout().split('\n')).encode('utf8'))
text = self.send_to_external_editor(for_editor)
lines = text.split('\n')
self.history = [line for line in lines if line[:4] != '### ']
self.reevaluate(insert_into_history=True)
self._current_line = lines[-1][4:]
self.cursor_offset_in_line = len(self._current_line)
## Handler Helpers
def add_normal_character(self, char):
if len(char) > 1 or is_nop(char):
return
self._current_line = (self._current_line[:self.cursor_offset_in_line] +
char +
self._current_line[self.cursor_offset_in_line:])
self.cursor_offset_in_line += 1
if self.config.cli_trim_prompts and self._current_line.startswith(">>> "):
self._current_line = self._current_line[4:]
self.cursor_offset_in_line = max(0, self.cursor_offset_in_line - 4)
def update_completion(self, tab=False):
"""Update autocomplete info; self.matches and self.argspec"""
if self.list_win_visible and not self.config.auto_display_list:
self.list_win_visible = False
self.matches_iter.update(self.current_word)
return
if self.config.auto_display_list or tab:
self.list_win_visible = BpythonRepl.complete(self, tab)
def push(self, line, insert_into_history=True):
"""Push a line of code onto the buffer, start running the buffer
If the interpreter successfully runs the code, clear the buffer
"""
if self.paste_mode:
self.saved_indent = 0
else:
indent = len(re.match(r'[ ]*', line).group())
if line.endswith(':'):
indent = max(0, indent + self.config.tab_length)
elif line and line.count(' ') == len(line):
indent = max(0, indent - self.config.tab_length)
elif line and ':' not in line and line.strip().startswith(('return', 'pass', 'raise', 'yield')):
indent = max(0, indent - self.config.tab_length)
self.saved_indent = indent
#current line not added to display buffer if quitting #TODO I don't understand this comment
if self.config.syntax:
display_line = bpythonparse(format(self.tokenize(line), self.formatter))
# careful: self.tokenize requires that the line not be in self.buffer yet!
logging.debug('display line being pushed to buffer: %r -> %r', line, display_line)
self.display_buffer.append(display_line)
else:
self.display_buffer.append(fmtstr(line))
if insert_into_history:
self.insert_into_history(line)
self.buffer.append(line)
code_to_run = '\n'.join(self.buffer)
logging.debug('running %r in interpreter', self.buffer)
try:
c = bool(code.compile_command('\n'.join(self.buffer)))
self.saved_predicted_parse_error = False
except (ValueError, SyntaxError, OverflowError):
c = self.saved_predicted_parse_error = True
if c:
logging.debug('finished - buffer cleared')
self.display_lines.extend(self.display_buffer_lines)
self.display_buffer = []
self.buffer = []
self.cursor_offset_in_line = 0
self.coderunner.load_code(code_to_run)
self.run_code_and_maybe_finish()
def run_code_and_maybe_finish(self, for_code=None):
r = self.coderunner.run_code(for_code=for_code)
if r:
logging.debug("----- Running finish command stuff -----")
logging.debug("saved_indent: %r", self.saved_indent)
err = self.saved_predicted_parse_error
self.saved_predicted_parse_error = False
indent = self.saved_indent
if err:
indent = 0
#TODO This should be printed ABOVE the error that just happened instead
# or maybe just thrown away and not shown
if self.current_stdouterr_line:
self.display_lines.extend(paint.display_linize(self.current_stdouterr_line, self.width))
self.current_stdouterr_line = ''
self._current_line = ' '*indent
self.cursor_offset_in_line = len(self._current_line)
def keyboard_interrupt(self):
#TODO factor out the common cleanup from running a line
self.cursor_offset_in_line = -1
self.unhighlight_paren()
self.display_lines.extend(self.display_buffer_lines)
self.display_lines.extend(paint.display_linize(self.current_cursor_line, self.width))
self.display_lines.extend(paint.display_linize("KeyboardInterrupt", self.width))
self.clear_current_block(remove_from_history=False)
def unhighlight_paren(self):
"""modify line in self.display_buffer to unhighlight a paren if possible
self.highlighted_paren should be a line in ?
"""
if self.highlighted_paren is not None and self.config.syntax:
lineno, saved_tokens = self.highlighted_paren
if lineno == len(self.display_buffer):
# then this is the current line, so don't worry about it
return
self.highlighted_paren = None
logging.debug('trying to unhighlight a paren on line %r', lineno)
logging.debug('with these tokens: %r', saved_tokens)
new = bpythonparse(format(saved_tokens, self.formatter))
self.display_buffer[lineno] = self.display_buffer[lineno].setslice_with_length(0, len(new), new, len(self.display_buffer[lineno]))
def clear_current_block(self, remove_from_history=True):
self.display_buffer = []
if remove_from_history:
[self.history.pop() for _ in self.buffer]
self.buffer = []
self.cursor_offset_in_line = 0
self.saved_indent = 0
self._current_line = ''
self.cursor_offset_in_line = len(self._current_line)
def get_current_block(self):
return '\n'.join(self.buffer + [self._current_line])
def send_to_stdout(self, output):
lines = output.split('\n')
logging.debug('display_lines: %r', self.display_lines)
self.current_stdouterr_line += lines[0]
if len(lines) > 1:
self.display_lines.extend(paint.display_linize(self.current_stdouterr_line, self.width, blank_line=True))
self.display_lines.extend(sum([paint.display_linize(line, self.width, blank_line=True) for line in lines[1:-1]], []))
self.current_stdouterr_line = lines[-1]
logging.debug('display_lines: %r', self.display_lines)
def send_to_stderr(self, error):
#self.send_to_stdout(error)
self.display_lines.extend([func_for_letter(self.config.color_scheme['error'])(line)
for line in sum([paint.display_linize(line, self.width)
for line in error.split('\n')], [])])
def send_to_stdin(self, line):
if line.endswith('\n'):
self.display_lines.extend(paint.display_linize(self.current_output_line, self.width))
self.current_output_line = ''
#self.display_lines = self.display_lines[:len(self.display_lines) - self.stdin.old_num_lines]
#lines = paint.display_linize(line, self.width)
#self.stdin.old_num_lines = len(lines)
#self.display_lines.extend(paint.display_linize(line, self.width))
pass
## formatting, output
@property
def done(self):
"""Whether the last block is complete - which prompt to use, ps1 or ps2"""
return not self.buffer
@property
def current_line_formatted(self):
"""The colored current line (no prompt, not wrapped)"""
if self.config.syntax:
fs = bpythonparse(format(self.tokenize(self._current_line), self.formatter))
logging.debug('Display line %r -> %r', self._current_line, fs)
else:
fs = fmtstr(self._current_line)
if hasattr(self, 'old_fs') and str(fs) != str(self.old_fs):
pass
#logging.debug('calculating current formatted line: %r', repr(fs))
self.old_fs = fs
return fs
@property
def lines_for_display(self):
"""All display lines (wrapped, colored, with prompts)"""
return self.display_lines + self.display_buffer_lines
@property
def current_word(self):
"""Returns the "current word", based on what's directly left of the cursor.
examples inclue "socket.socket.metho" or "self.reco" or "yiel"
cw() is currently an alias, but cw() is used by bpyton.repl.Repl
so must match its definition of current word - changing how it behaves
has many repercussions.
"""
start, end, word = self._get_current_word()
return word
def _get_current_word(self):
pos = self.cursor_offset_in_line
matches = list(re.finditer(r'''[\w_][\w0-9._\[\]']*[(]?''', self._current_line))
start = pos
end = pos
word = None
for m in matches:
if m.start() < pos and m.end() >= pos:
start = m.start()
end = m.end()
word = m.group()
return (start, end, word)
@current_word.setter
def current_word(self, value):
# current word means word cursor is at the end of
start, end, word = self._get_current_word()
self._current_line = self._current_line[:start] + value + self._current_line[end:]
self.cursor_offset_in_line = start + len(value)
@property
def display_buffer_lines(self):
"""The display lines (wrapped, colored, with prompts) for the current buffer"""
lines = []
for display_line in self.display_buffer:
display_line = (func_for_letter(self.config.color_scheme['prompt_more'])(self.ps2)
if lines else
func_for_letter(self.config.color_scheme['prompt'])(self.ps1)) + display_line
for line in paint.display_linize(display_line, self.width):
lines.append(line)
return lines
@property
def display_line_with_prompt(self):
"""colored line with prompt"""
return (func_for_letter(self.config.color_scheme['prompt'])(self.ps1)
if self.done else
func_for_letter(self.config.color_scheme['prompt_more'])(self.ps2)) + self.current_line_formatted
@property
def current_cursor_line(self):
"""Current line, either output/input or Python prompt + code"""
value = (self.current_output_line +
('' if self.coderunner.running else self.display_line_with_prompt))
logging.debug('current cursor line: %r', value)
return value
@property
def current_output_line(self):
"""line of output currently being written, and stdin typed"""
return self.current_stdouterr_line + self.stdin.current_line
@current_output_line.setter
def current_output_line(self, value):
self.current_stdouterr_line = ''
self.stdin.current_line = '\n'
def paint(self, about_to_exit=False, user_quit=False):
"""Returns an array of min_height or more rows and width columns, plus cursor position
Paints the entire screen - ideally the terminal display layer will take a diff and only
write to the screen in portions that have changed, but the idea is that we don't need
to worry about that here, instead every frame is completely redrawn because
less state is cool!
"""
# The hairiest function in the curtsies - a cleanup would be great.
if about_to_exit:
self.clean_up_current_line_for_exit() # exception to not changing state!
width, min_height = self.width, self.height
show_status_bar = bool(self.status_bar._message) or (self.config.curtsies_fill_terminal or self.status_bar.has_focus)
if show_status_bar:
min_height -= 1
current_line_start_row = len(self.lines_for_display) - max(0, self.scroll_offset)
if self.request_paint_to_clear_screen: # or show_status_bar and about_to_exit ?
self.request_paint_to_clear_screen = False
if self.config.curtsies_fill_terminal: #TODO clean up this logic - really necessary check?
arr = FSArray(self.height - 1 + current_line_start_row, width)
else:
arr = FSArray(self.height + current_line_start_row, width)
else:
arr = FSArray(0, width)
#TODO test case of current line filling up the whole screen (there aren't enough rows to show it)
if current_line_start_row < 0: #if current line trying to be drawn off the top of the screen
logging.debug('#<---History contiguity broken by rewind--->')
msg = "#<---History contiguity broken by rewind--->"
arr[0, 0:min(len(msg), width)] = [msg[:width]]
# move screen back up a screen minus a line
while current_line_start_row < 0:
self.scroll_offset = self.scroll_offset - self.height
current_line_start_row = len(self.lines_for_display) - max(-1, self.scroll_offset)
history = paint.paint_history(max(0, current_line_start_row - 1), width, self.lines_for_display)
arr[1:history.height+1,:history.width] = history
if arr.height <= min_height:
arr[min_height, 0] = ' ' # force scroll down to hide broken history message
else:
history = paint.paint_history(current_line_start_row, width, self.lines_for_display)
arr[:history.height,:history.width] = history
current_line = paint.paint_current_line(min_height, width, self.current_cursor_line)
if user_quit: # quit() or exit() in interp
current_line_start_row = current_line_start_row - current_line.height
logging.debug("---current line row slice %r, %r", current_line_start_row, current_line_start_row + current_line.height)
logging.debug("---current line col slice %r, %r", 0, current_line.width)
arr[current_line_start_row:current_line_start_row + current_line.height,
0:current_line.width] = current_line
if current_line.height > min_height:
return arr, (0, 0) # short circuit, no room for infobox
lines = paint.display_linize(self.current_cursor_line+'X', width)
# extra character for space for the cursor
current_line_end_row = current_line_start_row + len(lines) - 1
if self.stdin.has_focus:
cursor_row, cursor_column = divmod(len(self.current_stdouterr_line) + self.stdin.cursor_offset_in_line, width)
assert cursor_column >= 0, cursor_column
elif self.coderunner.running: #TODO does this ever happen?
cursor_row, cursor_column = divmod(len(self.current_cursor_line) + self.cursor_offset_in_line, width)
assert cursor_column >= 0, (cursor_column, len(self.current_cursor_line), len(self._current_line), self.cursor_offset_in_line)
else:
cursor_row, cursor_column = divmod(len(self.current_cursor_line) - len(self._current_line) + self.cursor_offset_in_line, width)
assert cursor_column >= 0, (cursor_column, len(self.current_cursor_line), len(self._current_line), self.cursor_offset_in_line)
cursor_row += current_line_start_row
if self.list_win_visible:
logging.debug('infobox display code running')
visible_space_above = history.height
visible_space_below = min_height - current_line_end_row - 1
info_max_rows = max(visible_space_above, visible_space_below)
infobox = paint.paint_infobox(info_max_rows, int(width * self.config.cli_suggestion_width), self.matches, self.argspec, self.current_word, self.docstring, self.config)
if visible_space_above >= infobox.height and self.config.curtsies_list_above:
arr[current_line_start_row - infobox.height:current_line_start_row, 0:infobox.width] = infobox
else:
arr[current_line_end_row + 1:current_line_end_row + 1 + infobox.height, 0:infobox.width] = infobox
logging.debug('slamming infobox of shape %r into arr of shape %r', infobox.shape, arr.shape)
logging.debug('about to exit: %r', about_to_exit)
if show_status_bar:
if self.config.curtsies_fill_terminal:
if about_to_exit:
arr[max(arr.height, min_height), :] = FSArray(1, width)
else:
arr[max(arr.height, min_height), :] = paint.paint_statusbar(1, width, self.status_bar.current_line, self.config)
if self.presentation_mode:
rows = arr.height
columns = arr.width
last_key_box = paint.paint_last_events(rows, columns, [events.pp_event(x) for x in self.last_events if x])
arr[arr.height-last_key_box.height:arr.height, arr.width-last_key_box.width:arr.width] = last_key_box
else:
statusbar_row = min_height + 1 if arr.height == min_height else arr.height
if about_to_exit:
arr[statusbar_row, :] = FSArray(1, width)
else:
arr[statusbar_row, :] = paint.paint_statusbar(1, width, self.status_bar.current_line, self.config)
if self.config.color_scheme['background'] not in ('d', 'D'):
for r in range(arr.height):
arr[r] = fmtstr(arr[r], bg=color_for_letter(self.config.color_scheme['background']))
logging.debug('returning arr of size %r', arr.shape)
logging.debug('cursor pos: %r', (cursor_row, cursor_column))
return arr, (cursor_row, cursor_column)
@contextlib.contextmanager
def in_paste_mode(self):
orig_value = self.paste_mode
self.paste_mode = True
yield
self.paste_mode = orig_value
## Debugging shims, good example of embedding a Repl in other code
def dumb_print_output(self):
arr, cpos = self.paint()
arr[cpos[0]:cpos[0]+1, cpos[1]:cpos[1]+1] = ['~']
def my_print(msg):
self.orig_stdout.write(str(msg)+'\n')
my_print('X'*(self.width+8))
my_print(' use "/" for enter '.center(self.width+8, 'X'))
my_print(' use "\\" for rewind '.center(self.width+8, 'X'))
my_print(' use "|" to raise an error '.center(self.width+8, 'X'))
my_print(' use "$" to pastebin '.center(self.width+8, 'X'))
my_print(' "~" is the cursor '.center(self.width+8, 'X'))
my_print('X'*(self.width+8))
my_print('X``'+('`'*(self.width+2))+'``X')
for line in arr:
my_print('X```'+line.ljust(self.width)+'```X')
logging.debug('line:')
logging.debug(repr(line))
my_print('X``'+('`'*(self.width+2))+'``X')
my_print('X'*(self.width+8))
return max(len(arr) - self.height, 0)
def dumb_input(self, requested_refreshes=[]):
chars = list(self.orig_stdin.readline()[:-1])
while chars or requested_refreshes:
if requested_refreshes:
requested_refreshes.pop()
self.process_event(events.RefreshRequestEvent())
continue
c = chars.pop(0)
if c in '/':
c = '\n'
elif c in '\\':
c = ''
elif c in '|':
def r(): raise Exception('errors in other threads should look like this')
t = threading.Thread(target=r)
t.daemon = True
t.start()
elif c in '$':
c = key_dispatch[self.config.pastebin_key][0]
self.process_event(c)
def __repr__(self):
s = ''
s += '<Repl\n'
s += " cursor_offset_in_line:" + repr(self.cursor_offset_in_line) + '\n'
s += " num display lines:" + repr(len(self.display_lines)) + '\n'
s += " lines scrolled down:" + repr(self.scroll_offset) + '\n'
s += '>'
return s
## Provided for bpython.repl.Repl
def current_line(self):
"""Returns the current line"""
return self._current_line
def echo(self, msg, redraw=True):
"""
Notification that redrawing the current line is necessary (we don't
care, since we always redraw the whole screen)
Supposed to parse and echo a formatted string with appropriate attributes.
It's not supposed to update the screen if it's reevaluating the code (as it
does with undo)."""
logging.debug("echo called with %r" % msg)
def cw(self):
"""Returns the "current word", based on what's directly left of the cursor.
examples inclue "socket.socket.metho" or "self.reco" or "yiel" """
return self.current_word
@property
def cpos(self):
"many WATs were had - it's the pos from the end of the line back"""
return len(self._current_line) - self.cursor_offset_in_line
def reprint_line(self, lineno, tokens):
logging.debug("calling reprint line with %r %r", lineno, tokens)
if self.config.syntax:
self.display_buffer[lineno] = bpythonparse(format(tokens, self.formatter))
def reevaluate(self, insert_into_history=False):
"""bpython.Repl.undo calls this"""
old_logical_lines = self.history
self.history = []
self.display_lines = []
if not self.weak_rewind:
self.interp = code.InteractiveInterpreter()
self.coderunner.interp = self.interp
self.completer = Autocomplete(self.interp.locals, self.config)
self.completer.autocomplete_mode = 'simple'
self.buffer = []
self.display_buffer = []
self.highlighted_paren = None
self.reevaluating = True
sys.stdin = ReevaluateFakeStdin(self.stdin, self)
for line in old_logical_lines:
self._current_line = line
self.on_enter(insert_into_history=insert_into_history)
while self.fake_refresh_requested:
self.fake_refresh_requested = False
self.process_event(events.RefreshRequestEvent())
sys.stdin = self.stdin
self.reevaluating = False
self.cursor_offset_in_line = 0
self._current_line = ''
def getstdout(self):
lines = self.lines_for_display + [self.current_line_formatted]
s = '\n'.join([x.s if isinstance(x, FmtStr) else x for x in lines]
) if lines else ''
return s