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cli.py
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1979 lines (1625 loc) · 61.8 KB
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# The MIT License
#
# Copyright (c) 2008 Bob Farrell
# Copyright (c) bpython authors
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# Modified by Brandon Navra
# Notes for Windows
# Prerequsites
# - Curses
# - pyreadline
#
# Added
#
# - Support for running on windows command prompt
# - input from numpad keys
#
# Issues
#
# - Suspend doesn't work nor does detection of resizing of screen
# - Instead the suspend key exits the program
# - View source doesn't work on windows unless you install the less program (From GnuUtils or Cygwin)
from __future__importdivision
importplatform
importos
importsys
importcurses
importmath
importre
importtime
importfunctools
importstruct
ifplatform.system()!='Windows':
importsignal#Windows does not have job control
importtermios#Windows uses curses
importfcntl#Windows uses curses
importunicodedata
importerrno
fromtypesimportModuleType
fromsix.movesimportrange
# These are used for syntax highlighting
frompygmentsimportformat
frompygments.formattersimportTerminalFormatter
frombpython._py3compatimportPythonLexer
frompygments.tokenimportToken
frombpython.formatterimportBPythonFormatter
# This for completion
frombpythonimportimportcompletion
# This for config
frombpython.configimportStruct,getpreferredencoding
# This for keys
frombpython.keysimportcli_key_dispatchaskey_dispatch
# This for i18n
frombpythonimporttranslations
frombpython.translationsimport_
frombpythonimportrepl
frombpython._py3compatimportpy3
frombpython.pagerimportpage
importbpython.args
ifnotpy3:
importinspect
# --- module globals ---
stdscr=None
colors=None
DO_RESIZE=False
# ---
defcalculate_screen_lines(tokens,width,cursor=0):
"""Given a stream of tokens and a screen width plus an optional
initial cursor position, return the amount of needed lines on the
screen."""
lines=1
pos=cursor
for (token,value)intokens:
iftokenisToken.Textandvalue=='\n':
lines+=1
else:
pos+=len(value)
lines+=pos//width
pos%=width
returnlines
defforward_if_not_current(func):
@functools.wraps(func)
defnewfunc(self,*args,**kwargs):
dest=self.get_dest()
ifselfisdest:
returnfunc(self,*args,**kwargs)
else:
returngetattr(self.get_dest(),newfunc.__name__)(*args,**kwargs)
returnnewfunc
classFakeStream(object):
"""Provide a fake file object which calls functions on the interface
provided."""
def__init__(self,interface,get_dest):
self.encoding=getpreferredencoding()
self.interface=interface
self.get_dest=get_dest
@forward_if_not_current
defwrite(self,s):
self.interface.write(s)
@forward_if_not_current
defwritelines(self,l):
forsinl:
self.write(s)
defisatty(self):
# some third party (amongst them mercurial) depend on this
returnTrue
defflush(self):
self.interface.flush()
classFakeStdin(object):
"""Provide a fake stdin type for things like raw_input() etc."""
def__init__(self,interface):
"""Take the curses Repl on init and assume it provides a get_key method
which, fortunately, it does."""
self.encoding=getpreferredencoding()
self.interface=interface
self.buffer=list()
def__iter__(self):
returniter(self.readlines())
defflush(self):
"""Flush the internal buffer. This is a no-op. Flushing stdin
doesn't make any sense anyway."""
defwrite(self,value):
# XXX IPython expects sys.stdin.write to exist, there will no doubt be
# others, so here's a hack to keep them happy
raiseIOError(errno.EBADF,"sys.stdin is read-only")
defisatty(self):
returnTrue
defreadline(self,size=-1):
"""I can't think of any reason why anything other than readline would
be useful in the context of an interactive interpreter so this is the
only one I've done anything with. The others are just there in case
someone does something weird to stop it from blowing up."""
ifnotsize:
return''
elifself.buffer:
buffer=self.buffer.pop(0)
else:
buffer=''
curses.raw(True)
try:
whilenotbuffer.endswith(('\n','\r')):
key=self.interface.get_key()
ifkeyin [curses.erasechar(),'KEY_BACKSPACE']:
y,x=self.interface.scr.getyx()
ifbuffer:
self.interface.scr.delch(y,x-1)
buffer=buffer[:-1]
continue
elifkey==chr(4)andnotbuffer:
# C-d
return''
elif (keynotin ('\n','\r')and
(len(key)>1orunicodedata.category(key)=='Cc')):
continue
sys.stdout.write(key)
# Include the \n in the buffer - raw_input() seems to deal with trailing
# linebreaks and will break if it gets an empty string.
buffer+=key
finally:
curses.raw(False)
ifsize>0:
rest=buffer[size:]
ifrest:
self.buffer.append(rest)
buffer=buffer[:size]
ifpy3:
returnbuffer
else:
returnbuffer.encode(getpreferredencoding())
defread(self,size=None):
ifsize==0:
return''
data=list()
whilesizeisNoneorsize>0:
line=self.readline(sizeor-1)
ifnotline:
break
ifsizeisnotNone:
size-=len(line)
data.append(line)
return''.join(data)
defreadlines(self,size=-1):
returnlist(iter(self.readline,''))
# TODO:
#
# Tab completion does not work if not at the end of the line.
#
# Numerous optimisations can be made but it seems to do all the lookup stuff
# fast enough on even my crappy server so I'm not too bothered about that
# at the moment.
#
# The popup window that displays the argspecs and completion suggestions
# needs to be an instance of a ListWin class or something so I can wrap
# the addstr stuff to a higher level.
#
defget_color(config,name):
globalcolors
returncolors[config.color_scheme[name].lower()]
defget_colpair(config,name):
returncurses.color_pair(get_color(config,name)+1)
defmake_colors(config):
"""Init all the colours in curses and bang them into a dictionary"""
# blacK, Red, Green, Yellow, Blue, Magenta, Cyan, White, Default:
c= {
'k':0,
'r':1,
'g':2,
'y':3,
'b':4,
'm':5,
'c':6,
'w':7,
'd':-1,
}
ifplatform.system()=='Windows':
c=dict(c.items()+
[
('K',8),
('R',9),
('G',10),
('Y',11),
('B',12),
('M',13),
('C',14),
('W',15),
]
)
foriinrange(63):
ifi>7:
j=i//8
else:
j=c[config.color_scheme['background']]
curses.init_pair(i+1,i%8,j)
returnc
classCLIInteraction(repl.Interaction):
def__init__(self,config,statusbar=None):
repl.Interaction.__init__(self,config,statusbar)
defconfirm(self,q):
"""Ask for yes or no and return boolean"""
try:
reply=self.statusbar.prompt(q)
exceptValueError:
returnFalse
returnreply.lower()in (_('y'),_('yes'))
defnotify(self,s,n=10,wait_for_keypress=False):
returnself.statusbar.message(s,n)
deffile_prompt(self,s):
returnself.statusbar.prompt(s)
classCLIRepl(repl.Repl):
def__init__(self,scr,interp,statusbar,config,idle=None):
repl.Repl.__init__(self,interp,config)
self.interp.writetb=self.writetb
self.scr=scr
self.stdout_hist=''
self.list_win=newwin(get_colpair(config,'background'),1,1,1,1)
self.cpos=0
self.do_exit=False
self.exit_value= ()
self.f_string=''
self.idle=idle
self.in_hist=False
self.paste_mode=False
self.last_key_press=time.time()
self.s=''
self.statusbar=statusbar
self.formatter=BPythonFormatter(config.color_scheme)
self.interact=CLIInteraction(self.config,statusbar=self.statusbar)
ifconfig.cli_suggestion_width<=0orconfig.cli_suggestion_width>1:
config.cli_suggestion_width=0.8
def_get_cursor_offset(self):
returnlen(self.s)-self.cpos
def_set_cursor_offset(self,offset):
self.cpos=len(self.s)-offset
cursor_offset=property(_get_cursor_offset,_set_cursor_offset,None,
"The cursor offset from the beginning of the line")
defaddstr(self,s):
"""Add a string to the current input line and figure out
where it should go, depending on the cursor position."""
self.rl_history.reset()
ifnotself.cpos:
self.s+=s
else:
l=len(self.s)
self.s=self.s[:l-self.cpos]+s+self.s[l-self.cpos:]
self.complete()
defatbol(self):
"""Return True or False accordingly if the cursor is at the beginning
of the line (whitespace is ignored). This exists so that p_key() knows
how to handle the tab key being pressed - if there is nothing but white
space before the cursor then process it as a normal tab otherwise
attempt tab completion."""
returnnotself.s.lstrip()
defbs(self,delete_tabs=True):
"""Process a backspace"""
self.rl_history.reset()
y,x=self.scr.getyx()
ifnotself.s:
return
ifx==self.ixandy==self.iy:
return
n=1
self.clear_wrapped_lines()
ifnotself.cpos:
# I know the nested if blocks look nasty. :(
ifself.atbol()anddelete_tabs:
n=len(self.s)%self.config.tab_length
ifnotn:
n=self.config.tab_length
self.s=self.s[:-n]
else:
self.s=self.s[:-self.cpos-1]+self.s[-self.cpos:]
self.print_line(self.s,clr=True)
returnn
defbs_word(self):
self.rl_history.reset()
pos=len(self.s)-self.cpos-1
deleted= []
# First we delete any space to the left of the cursor.
whilepos>=0andself.s[pos]==' ':
deleted.append(self.s[pos])
pos-=self.bs()
# Then we delete a full word.
whilepos>=0andself.s[pos]!=' ':
deleted.append(self.s[pos])
pos-=self.bs()
return''.join(reversed(deleted))
defcheck(self):
"""Check if paste mode should still be active and, if not, deactivate
it and force syntax highlighting."""
if (self.paste_mode
andtime.time()-self.last_key_press>self.config.paste_time):
self.paste_mode=False
self.print_line(self.s)
defclear_current_line(self):
"""Called when a SyntaxError occurred in the interpreter. It is
used to prevent autoindentation from occuring after a
traceback."""
repl.Repl.clear_current_line(self)
self.s=''
defclear_wrapped_lines(self):
"""Clear the wrapped lines of the current input."""
# curses does not handle this on its own. Sad.
height,width=self.scr.getmaxyx()
max_y=min(self.iy+ (self.ix+len(self.s))//width+1,height)
foryinrange(self.iy+1,max_y):
self.scr.move(y,0)
self.scr.clrtoeol()
defcomplete(self,tab=False):
"""Get Autcomplete list and window.
Called whenever these should be updated, and called
with tab
"""
ifself.paste_mode:
self.scr.touchwin()#TODO necessary?
return
list_win_visible=repl.Repl.complete(self,tab)
iflist_win_visible:
try:
self.show_list(self.matches_iter.matches,self.arg_pos,
topline=self.funcprops,
formatter=self.matches_iter.completer.format)
exceptcurses.error:
# XXX: This is a massive hack, it will go away when I get
# cusswords into a good enough state that we can start
# using it.
self.list_win.border()
self.list_win.refresh()
list_win_visible=False
ifnotlist_win_visible:
self.scr.redrawwin()
self.scr.refresh()
defclrtobol(self):
"""Clear from cursor to beginning of line; usual C-u behaviour"""
self.clear_wrapped_lines()
ifnotself.cpos:
self.s=''
else:
self.s=self.s[-self.cpos:]
self.print_line(self.s,clr=True)
self.scr.redrawwin()
self.scr.refresh()
def_get_current_line(self):
returnself.s
def_set_current_line(self,line):
self.s=line
current_line=property(_get_current_line,_set_current_line,None,
"The characters of the current line")
defcut_to_buffer(self):
"""Clear from cursor to end of line, placing into cut buffer"""
self.cut_buffer=self.s[-self.cpos:]
self.s=self.s[:-self.cpos]
self.cpos=0
self.print_line(self.s,clr=True)
self.scr.redrawwin()
self.scr.refresh()
defdelete(self):
"""Process a del"""
ifnotself.s:
return
ifself.mvc(-1):
self.bs(False)
defecho(self,s,redraw=True):
"""Parse and echo a formatted string with appropriate attributes. It
uses the formatting method as defined in formatter.py to parse the
srings. It won't update the screen if it's reevaluating the code (as it
does with undo)."""
ifnotpy3andisinstance(s,unicode):
s=s.encode(getpreferredencoding())
a=get_colpair(self.config,'output')
if'\x01'ins:
rx=re.search('\x01([A-Za-z])([A-Za-z]?)',s)
ifrx:
fg=rx.groups()[0]
bg=rx.groups()[1]
col_num=self._C[fg.lower()]
ifbgandbg!='I':
col_num*=self._C[bg.lower()]
a=curses.color_pair(int(col_num)+1)
ifbg=='I':
a=a|curses.A_REVERSE
s=re.sub('\x01[A-Za-z][A-Za-z]?','',s)
iffg.isupper():
a=a|curses.A_BOLD
s=s.replace('\x03','')
s=s.replace('\x01','')
# Replace NUL bytes, as addstr raises an exception otherwise
s=s.replace('\0','')
# Replace \r\n bytes, as addstr remove the current line otherwise
s=s.replace('\r\n','\n')
self.scr.addstr(s,a)
ifredrawandnotself.evaluating:
self.scr.refresh()
defend(self,refresh=True):
self.cpos=0
h,w=gethw()
y,x=divmod(len(self.s)+self.ix,w)
y+=self.iy
self.scr.move(y,x)
ifrefresh:
self.scr.refresh()
returnTrue
defhbegin(self):
"""Replace the active line with first line in history and
increment the index to keep track"""
self.cpos=0
self.clear_wrapped_lines()
self.rl_history.enter(self.s)
self.s=self.rl_history.first()
self.print_line(self.s,clr=True)
defhend(self):
"""Same as hbegin() but, well, forward"""
self.cpos=0
self.clear_wrapped_lines()
self.rl_history.enter(self.s)
self.s=self.rl_history.last()
self.print_line(self.s,clr=True)
defback(self):
"""Replace the active line with previous line in history and
increment the index to keep track"""
self.cpos=0
self.clear_wrapped_lines()
self.rl_history.enter(self.s)
self.s=self.rl_history.back()
self.print_line(self.s,clr=True)
deffwd(self):
"""Same as back() but, well, forward"""
self.cpos=0
self.clear_wrapped_lines()
self.rl_history.enter(self.s)
self.s=self.rl_history.forward()
self.print_line(self.s,clr=True)
defsearch(self):
"""Search with the partial matches from the history object."""
self.cpo=0
self.clear_wrapped_lines()
self.rl_history.enter(self.s)
self.s=self.rl_history.back(start=False,search=True)
self.print_line(self.s,clr=True)
defget_key(self):
key=''
whileTrue:
try:
key+=self.scr.getkey()
ifpy3:
# Seems like we get a in the locale's encoding
# encoded string in Python 3 as well, but of
# type str instead of bytes, hence convert it to
# bytes first and decode then
key=key.encode('latin-1').decode(getpreferredencoding())
else:
key=key.decode(getpreferredencoding())
self.scr.nodelay(False)
exceptUnicodeDecodeError:
# Yes, that actually kind of sucks, but I don't see another way to get
# input right
self.scr.nodelay(True)
exceptcurses.error:
# I'm quite annoyed with the ambiguity of this exception handler. I previously
# caught "curses.error, x" and accessed x.message and checked that it was "no
# input", which seemed a crappy way of doing it. But then I ran it on a
# different computer and the exception seems to have entirely different
# attributes. So let's hope getkey() doesn't raise any other crazy curses
# exceptions. :)
self.scr.nodelay(False)
# XXX What to do here? Raise an exception?
ifkey:
returnkey
else:
ifkey!='\x00':
t=time.time()
self.paste_mode= (
t-self.last_key_press<=self.config.paste_time
)
self.last_key_press=t
returnkey
else:
key=''
finally:
ifself.idle:
self.idle(self)
defget_line(self):
"""Get a line of text and return it
This function initialises an empty string and gets the
curses cursor position on the screen and stores it
for the echo() function to use later (I think).
Then it waits for key presses and passes them to p_key(),
which returns None if Enter is pressed (that means "Return",
idiot)."""
self.s=''
self.rl_history.reset()
self.iy,self.ix=self.scr.getyx()
ifnotself.paste_mode:
for_inrange(self.next_indentation()):
self.p_key('\t')
self.cpos=0
whileTrue:
key=self.get_key()
ifself.p_key(key)isNone:
ifself.config.cli_trim_promptsandself.s.startswith(">>> "):
self.s=self.s[4:]
returnself.s
defhome(self,refresh=True):
self.scr.move(self.iy,self.ix)
self.cpos=len(self.s)
ifrefresh:
self.scr.refresh()
returnTrue
deflf(self):
"""Process a linefeed character; it only needs to check the
cursor position and move appropriately so it doesn't clear
the current line after the cursor."""
ifself.cpos:
for_inrange(self.cpos):
self.mvc(-1)
# Reprint the line (as there was maybe a highlighted paren in it)
self.print_line(self.s,newline=True)
self.echo("\n")
defmkargspec(self,topline,in_arg,down):
"""This figures out what to do with the argspec and puts it nicely into
the list window. It returns the number of lines used to display the
argspec. It's also kind of messy due to it having to call so many
addstr() to get the colouring right, but it seems to be pretty
sturdy."""
r=3
fn=topline.func
args=topline.argspec.args
kwargs=topline.argspec.defaults
_args=topline.argspec.varargs
_kwargs=topline.argspec.varkwargs
is_bound_method=topline.is_bound_method
ifpy3:
kwonly=topline.argspec.kwonly
kwonly_defaults=topline.argspec.kwonly_defaultsordict()
max_w=int(self.scr.getmaxyx()[1]*0.6)
self.list_win.erase()
self.list_win.resize(3,max_w)
h,w=self.list_win.getmaxyx()
self.list_win.addstr('\n ')
self.list_win.addstr(fn,
get_colpair(self.config,'name')|curses.A_BOLD)
self.list_win.addstr(': (',get_colpair(self.config,'name'))
maxh=self.scr.getmaxyx()[0]
ifis_bound_methodandisinstance(in_arg,int):
in_arg+=1
punctuation_colpair=get_colpair(self.config,'punctuation')
fork,iinenumerate(args):
y,x=self.list_win.getyx()
ln=len(str(i))
kw=None
ifkwargsandk+1>len(args)-len(kwargs):
kw=repr(kwargs[k- (len(args)-len(kwargs))])
ln+=len(kw)+1
ifln+x>=w:
ty=self.list_win.getbegyx()[0]
ifnotdownandty>0:
h+=1
self.list_win.mvwin(ty-1,1)
self.list_win.resize(h,w)
elifdownandh+r<maxh-ty:
h+=1
self.list_win.resize(h,w)
else:
break
r+=1
self.list_win.addstr('\n\t')
ifstr(i)=='self'andk==0:
color=get_colpair(self.config,'name')
else:
color=get_colpair(self.config,'token')
ifk==in_argori==in_arg:
color|=curses.A_BOLD
ifnotpy3:
# See issue #138: We need to format tuple unpacking correctly
# We use the undocumented function inspection.strseq() for
# that. Fortunately, that madness is gone in Python 3.
self.list_win.addstr(inspect.strseq(i,str),color)
else:
self.list_win.addstr(str(i),color)
ifkwisnotNone:
self.list_win.addstr('=',punctuation_colpair)
self.list_win.addstr(kw,get_colpair(self.config,'token'))
ifk!=len(args)-1:
self.list_win.addstr(', ',punctuation_colpair)
if_args:
ifargs:
self.list_win.addstr(', ',punctuation_colpair)
self.list_win.addstr('*%s'% (_args, ),
get_colpair(self.config,'token'))
ifpy3andkwonly:
ifnot_args:
ifargs:
self.list_win.addstr(', ',punctuation_colpair)
self.list_win.addstr('*',punctuation_colpair)
marker=object()
forarginkwonly:
self.list_win.addstr(', ',punctuation_colpair)
color=get_colpair(self.config,'token')
ifarg==in_arg:
color|=curses.A_BOLD
self.list_win.addstr(arg,color)
default=kwonly_defaults.get(arg,marker)
ifdefaultisnotmarker:
self.list_win.addstr('=',punctuation_colpair)
self.list_win.addstr(repr(default),
get_colpair(self.config,'token'))
if_kwargs:
ifargsor_argsor (py3andkwonly):
self.list_win.addstr(', ',punctuation_colpair)
self.list_win.addstr('**%s'% (_kwargs, ),
get_colpair(self.config,'token'))
self.list_win.addstr(')',punctuation_colpair)
returnr
defmvc(self,i,refresh=True):
"""This method moves the cursor relatively from the current
position, where:
0 == (right) end of current line
length of current line len(self.s) == beginning of current line
and:
current cursor position + i
for positive values of i the cursor will move towards the beginning
of the line, negative values the opposite."""
y,x=self.scr.getyx()
ifself.cpos==0andi<0:
returnFalse
ifx==self.ixandy==self.iyandi>=1:
returnFalse
h,w=gethw()
ifx-i<0:
y-=1
x=w
ifx-i>=w:
y+=1
x=0+i
self.cpos+=i
self.scr.move(y,x-i)
ifrefresh:
self.scr.refresh()
returnTrue
defp_key(self,key):
"""Process a keypress"""
ifkeyisNone:
return''
config=self.config
ifplatform.system()=='Windows':
C_BACK=chr(127)
BACKSP=chr(8)
else:
C_BACK=chr(8)
BACKSP=chr(127)
ifkey==C_BACK:# C-Backspace (on my computer anyway!)
self.clrtobol()
key='\n'
# Don't return; let it get handled
ifkey==chr(27):#Escape Key
return''
ifkeyin (BACKSP,'KEY_BACKSPACE'):
self.bs()
self.complete()
return''
elifkeyinkey_dispatch[config.delete_key]andnotself.s:
# Delete on empty line exits
self.do_exit=True
returnNone
elifkeyin ('KEY_DC', )+key_dispatch[config.delete_key]:
self.delete()
self.complete()
# Redraw (as there might have been highlighted parens)
self.print_line(self.s)
return''
elifkeyinkey_dispatch[config.undo_key]:# C-r
n=self.prompt_undo()
ifn>0:
self.undo(n=n)
return''
elifkeyinkey_dispatch[config.search_key]:
self.search()
return''
elifkeyin ('KEY_UP', )+key_dispatch[config.up_one_line_key]:
# Cursor Up/C-p
self.back()
return''
elifkeyin ('KEY_DOWN', )+key_dispatch[config.down_one_line_key]:
# Cursor Down/C-n
self.fwd()
return''
elifkeyin ("KEY_LEFT",' ^B',chr(2)):# Cursor Left or ^B
self.mvc(1)
# Redraw (as there might have been highlighted parens)
self.print_line(self.s)
elifkeyin ("KEY_RIGHT",'^F',chr(6)):# Cursor Right or ^F
self.mvc(-1)
# Redraw (as there might have been highlighted parens)
self.print_line(self.s)
elifkeyin ("KEY_HOME",'^A',chr(1)):# home or ^A
self.home()
# Redraw (as there might have been highlighted parens)
self.print_line(self.s)
elifkeyin ("KEY_END",'^E',chr(5)):# end or ^E
self.end()
# Redraw (as there might have been highlighted parens)
self.print_line(self.s)
elifkeyin ("KEY_NPAGE",'\T'):# page_down or \T
self.hend()
self.print_line(self.s)
elifkeyin ("KEY_PPAGE",'\S'):# page_up or \S
self.hbegin()
self.print_line(self.s)
elifkeyinkey_dispatch[config.cut_to_buffer_key]:# cut to buffer
self.cut_to_buffer()
return''
elifkeyinkey_dispatch[config.yank_from_buffer_key]:
# yank from buffer
self.yank_from_buffer()
return''
elifkeyinkey_dispatch[config.clear_word_key]:
self.cut_buffer=self.bs_word()
self.complete()
return''
elifkeyinkey_dispatch[config.clear_line_key]:
self.clrtobol()
return''
elifkeyinkey_dispatch[config.clear_screen_key]:
self.s_hist= [self.s_hist[-1]]
self.highlighted_paren=None
self.redraw()
return''
elifkeyinkey_dispatch[config.exit_key]:
ifnotself.s:
self.do_exit=True
returnNone
else:
return''
elifkeyinkey_dispatch[config.save_key]:
self.write2file()
return''
elifkeyinkey_dispatch[config.pastebin_key]:
self.pastebin()
return''
elifkeyinkey_dispatch[config.copy_clipboard_key]:
self.copy2clipboard()
return''
elifkeyinkey_dispatch[config.last_output_key]:
page(self.stdout_hist[self.prev_block_finished:-4])
return''
elifkeyinkey_dispatch[config.show_source_key]:
try:
source=self.get_source_of_current_name()
exceptrepl.SourceNotFoundase:
self.statusbar.message(_(e))
else:
ifconfig.highlight_show_source:
source=format(PythonLexer().get_tokens(source),
TerminalFormatter())
page(source)
return''
elifkeyin ('\n','\r','PADENTER'):
self.lf()
returnNone
elifkey=='\t':
returnself.tab()
elifkey=='KEY_BTAB':
returnself.tab(back=True)
elifkeyinkey_dispatch[config.suspend_key]:
ifplatform.system()!='Windows':
self.suspend()
return''
else:
self.do_exit=True