Show More
@@ -1,95 +1,98 b'' | |||
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1 | 1 | from IPython.core.debugger import Pdb |
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2 | 2 | |
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3 | 3 | from IPython.core.completer import IPCompleter |
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4 | 4 | from .ptutils import IPythonPTCompleter |
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5 | 5 | |
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6 | 6 | from prompt_toolkit.token import Token |
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7 | 7 | from prompt_toolkit.shortcuts import create_prompt_application |
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8 | 8 | from prompt_toolkit.interface import CommandLineInterface |
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9 | 9 | from prompt_toolkit.enums import EditingMode |
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10 | 10 | import sys |
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11 | 11 | |
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12 | 12 | |
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13 | 13 | class TerminalPdb(Pdb): |
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14 | 14 | def __init__(self, *args, **kwargs): |
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15 | 15 | Pdb.__init__(self, *args, **kwargs) |
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16 | 16 | self._ptcomp = None |
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17 | 17 | self.pt_init() |
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18 | 18 | |
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19 | 19 | def pt_init(self): |
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20 | 20 | def get_prompt_tokens(cli): |
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21 | 21 | return [(Token.Prompt, self.prompt)] |
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22 | 22 | |
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23 | def patch_stdout(**kwargs): | |
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24 | return self.pt_cli.patch_stdout_context(**kwargs) | |
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25 | ||
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23 | 26 | if self._ptcomp is None: |
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24 | 27 | compl = IPCompleter(shell=self.shell, |
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25 | 28 | namespace={}, |
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26 | 29 | global_namespace={}, |
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27 | 30 | parent=self.shell, |
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28 | 31 | ) |
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29 | self._ptcomp = IPythonPTCompleter(compl) | |
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32 | self._ptcomp = IPythonPTCompleter(compl, patch_stdout=patch_stdout) | |
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30 | 33 | |
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31 | 34 | self._pt_app = create_prompt_application( |
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32 | 35 | editing_mode=getattr(EditingMode, self.shell.editing_mode.upper()), |
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33 | 36 | history=self.shell.debugger_history, |
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34 | 37 | completer= self._ptcomp, |
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35 | 38 | enable_history_search=True, |
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36 | 39 | mouse_support=self.shell.mouse_support, |
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37 | 40 | get_prompt_tokens=get_prompt_tokens |
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38 | 41 | ) |
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39 | 42 | self.pt_cli = CommandLineInterface(self._pt_app, eventloop=self.shell._eventloop) |
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40 | 43 | |
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41 | 44 | def cmdloop(self, intro=None): |
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42 | 45 | """Repeatedly issue a prompt, accept input, parse an initial prefix |
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43 | 46 | off the received input, and dispatch to action methods, passing them |
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44 | 47 | the remainder of the line as argument. |
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45 | 48 | |
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46 | 49 | override the same methods from cmd.Cmd to provide prompt toolkit replacement. |
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47 | 50 | """ |
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48 | 51 | if not self.use_rawinput: |
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49 | 52 | raise ValueError('Sorry ipdb does not support use_rawinput=False') |
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50 | 53 | |
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51 | 54 | self.preloop() |
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52 | 55 | |
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53 | 56 | try: |
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54 | 57 | if intro is not None: |
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55 | 58 | self.intro = intro |
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56 | 59 | if self.intro: |
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57 | 60 | self.stdout.write(str(self.intro)+"\n") |
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58 | 61 | stop = None |
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59 | 62 | while not stop: |
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60 | 63 | if self.cmdqueue: |
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61 | 64 | line = self.cmdqueue.pop(0) |
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62 | 65 | else: |
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63 | 66 | self._ptcomp.ipy_completer.namespace = self.curframe_locals |
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64 | 67 | self._ptcomp.ipy_completer.global_namespace = self.curframe.f_globals |
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65 | 68 | try: |
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66 | 69 | line = self.pt_cli.run(reset_current_buffer=True).text |
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67 | 70 | except EOFError: |
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68 | 71 | line = 'EOF' |
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69 | 72 | line = self.precmd(line) |
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70 | 73 | stop = self.onecmd(line) |
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71 | 74 | stop = self.postcmd(stop, line) |
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72 | 75 | self.postloop() |
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73 | 76 | except Exception: |
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74 | 77 | raise |
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75 | 78 | |
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76 | 79 | |
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77 | 80 | def set_trace(frame=None): |
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78 | 81 | """ |
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79 | 82 | Start debugging from `frame`. |
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80 | 83 | |
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81 | 84 | If frame is not specified, debugging starts from caller's frame. |
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82 | 85 | """ |
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83 | 86 | TerminalPdb().set_trace(frame or sys._getframe().f_back) |
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84 | 87 | |
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85 | 88 | |
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86 | 89 | if __name__ == '__main__': |
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87 | 90 | import pdb |
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88 | 91 | # IPython.core.debugger.Pdb.trace_dispatch shall not catch |
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89 | 92 | # bdb.BdbQuit. When started through __main__ and an exception |
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90 | 93 | # happened after hitting "c", this is needed in order to |
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91 | 94 | # be able to quit the debugging session (see #9950). |
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92 | 95 | old_trace_dispatch = pdb.Pdb.trace_dispatch |
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93 | 96 | pdb.Pdb = TerminalPdb |
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94 | 97 | pdb.Pdb.trace_dispatch = old_trace_dispatch |
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95 | 98 | pdb.main() |
@@ -1,485 +1,489 b'' | |||
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1 | 1 | """IPython terminal interface using prompt_toolkit""" |
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2 | 2 | |
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3 | 3 | import os |
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4 | 4 | import sys |
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5 | 5 | import warnings |
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6 | 6 | from warnings import warn |
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7 | 7 | |
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8 | 8 | from IPython.core.interactiveshell import InteractiveShell, InteractiveShellABC |
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9 | 9 | from IPython.utils import io |
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10 | 10 | from IPython.utils.py3compat import cast_unicode_py2, input |
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11 | 11 | from IPython.utils.terminal import toggle_set_term_title, set_term_title |
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12 | 12 | from IPython.utils.process import abbrev_cwd |
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13 | 13 | from traitlets import Bool, Unicode, Dict, Integer, observe, Instance, Type, default, Enum, Union |
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14 | 14 | |
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15 | 15 | from prompt_toolkit.enums import DEFAULT_BUFFER, EditingMode |
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16 | 16 | from prompt_toolkit.filters import (HasFocus, Condition, IsDone) |
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17 | 17 | from prompt_toolkit.history import InMemoryHistory |
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18 | 18 | from prompt_toolkit.shortcuts import create_prompt_application, create_eventloop, create_prompt_layout, create_output |
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19 | 19 | from prompt_toolkit.interface import CommandLineInterface |
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20 | 20 | from prompt_toolkit.key_binding.manager import KeyBindingManager |
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21 | 21 | from prompt_toolkit.layout.processors import ConditionalProcessor, HighlightMatchingBracketProcessor |
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22 | 22 | from prompt_toolkit.styles import PygmentsStyle, DynamicStyle |
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23 | 23 | |
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24 | 24 | from pygments.styles import get_style_by_name, get_all_styles |
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25 | 25 | from pygments.style import Style |
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26 | 26 | from pygments.token import Token |
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27 | 27 | |
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28 | 28 | from .debugger import TerminalPdb, Pdb |
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29 | 29 | from .magics import TerminalMagics |
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30 | 30 | from .pt_inputhooks import get_inputhook_name_and_func |
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31 | 31 | from .prompts import Prompts, ClassicPrompts, RichPromptDisplayHook |
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32 | 32 | from .ptutils import IPythonPTCompleter, IPythonPTLexer |
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33 | 33 | from .shortcuts import register_ipython_shortcuts |
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34 | 34 | |
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35 | 35 | DISPLAY_BANNER_DEPRECATED = object() |
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36 | 36 | |
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37 | 37 | |
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38 | 38 | from pygments.style import Style |
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39 | 39 | |
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40 | 40 | class _NoStyle(Style): pass |
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41 | 41 | |
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42 | 42 | |
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43 | 43 | |
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44 | 44 | _style_overrides_light_bg = { |
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45 | 45 | Token.Prompt: '#0000ff', |
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46 | 46 | Token.PromptNum: '#0000ee bold', |
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47 | 47 | Token.OutPrompt: '#cc0000', |
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48 | 48 | Token.OutPromptNum: '#bb0000 bold', |
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49 | 49 | } |
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50 | 50 | |
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51 | 51 | _style_overrides_linux = { |
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52 | 52 | Token.Prompt: '#00cc00', |
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53 | 53 | Token.PromptNum: '#00bb00 bold', |
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54 | 54 | Token.OutPrompt: '#cc0000', |
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55 | 55 | Token.OutPromptNum: '#bb0000 bold', |
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56 | 56 | } |
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57 | 57 | |
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58 | 58 | |
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59 | 59 | |
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60 | 60 | def get_default_editor(): |
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61 | 61 | try: |
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62 | 62 | return os.environ['EDITOR'] |
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63 | 63 | except KeyError: |
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64 | 64 | pass |
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65 | 65 | except UnicodeError: |
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66 | 66 | warn("$EDITOR environment variable is not pure ASCII. Using platform " |
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67 | 67 | "default editor.") |
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68 | 68 | |
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69 | 69 | if os.name == 'posix': |
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70 | 70 | return 'vi' # the only one guaranteed to be there! |
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71 | 71 | else: |
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72 | 72 | return 'notepad' # same in Windows! |
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73 | 73 | |
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74 | 74 | # conservatively check for tty |
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75 | 75 | # overridden streams can result in things like: |
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76 | 76 | # - sys.stdin = None |
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77 | 77 | # - no isatty method |
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78 | 78 | for _name in ('stdin', 'stdout', 'stderr'): |
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79 | 79 | _stream = getattr(sys, _name) |
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80 | 80 | if not _stream or not hasattr(_stream, 'isatty') or not _stream.isatty(): |
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81 | 81 | _is_tty = False |
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82 | 82 | break |
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83 | 83 | else: |
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84 | 84 | _is_tty = True |
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85 | 85 | |
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86 | 86 | |
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87 | 87 | _use_simple_prompt = ('IPY_TEST_SIMPLE_PROMPT' in os.environ) or (not _is_tty) |
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88 | 88 | |
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89 | 89 | class TerminalInteractiveShell(InteractiveShell): |
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90 | 90 | space_for_menu = Integer(6, help='Number of line at the bottom of the screen ' |
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91 | 91 | 'to reserve for the completion menu' |
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92 | 92 | ).tag(config=True) |
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93 | 93 | |
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94 | 94 | def _space_for_menu_changed(self, old, new): |
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95 | 95 | self._update_layout() |
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96 | 96 | |
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97 | 97 | pt_cli = None |
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98 | 98 | debugger_history = None |
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99 | 99 | _pt_app = None |
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100 | 100 | |
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101 | 101 | simple_prompt = Bool(_use_simple_prompt, |
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102 | 102 | help="""Use `raw_input` for the REPL, without completion, multiline input, and prompt colors. |
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103 | 103 | |
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104 | 104 | Useful when controlling IPython as a subprocess, and piping STDIN/OUT/ERR. Known usage are: |
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105 | 105 | IPython own testing machinery, and emacs inferior-shell integration through elpy. |
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106 | 106 | |
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107 | 107 | This mode default to `True` if the `IPY_TEST_SIMPLE_PROMPT` |
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108 | 108 | environment variable is set, or the current terminal is not a tty. |
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109 | 109 | |
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110 | 110 | """ |
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111 | 111 | ).tag(config=True) |
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112 | 112 | |
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113 | 113 | @property |
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114 | 114 | def debugger_cls(self): |
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115 | 115 | return Pdb if self.simple_prompt else TerminalPdb |
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116 | 116 | |
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117 | 117 | confirm_exit = Bool(True, |
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118 | 118 | help=""" |
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119 | 119 | Set to confirm when you try to exit IPython with an EOF (Control-D |
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120 | 120 | in Unix, Control-Z/Enter in Windows). By typing 'exit' or 'quit', |
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121 | 121 | you can force a direct exit without any confirmation.""", |
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122 | 122 | ).tag(config=True) |
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123 | 123 | |
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124 | 124 | editing_mode = Unicode('emacs', |
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125 | 125 | help="Shortcut style to use at the prompt. 'vi' or 'emacs'.", |
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126 | 126 | ).tag(config=True) |
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127 | 127 | |
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128 | 128 | mouse_support = Bool(False, |
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129 | 129 | help="Enable mouse support in the prompt" |
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130 | 130 | ).tag(config=True) |
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131 | 131 | |
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132 | 132 | highlighting_style = Union([Unicode('legacy'), Type(klass=Style)], |
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133 | 133 | help="""The name or class of a Pygments style to use for syntax |
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134 | 134 | highlighting: \n %s""" % ', '.join(get_all_styles()) |
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135 | 135 | ).tag(config=True) |
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136 | 136 | |
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137 | 137 | |
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138 | 138 | @observe('highlighting_style') |
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139 | 139 | @observe('colors') |
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140 | 140 | def _highlighting_style_changed(self, change): |
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141 | 141 | self.refresh_style() |
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142 | 142 | |
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143 | 143 | def refresh_style(self): |
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144 | 144 | self._style = self._make_style_from_name_or_cls(self.highlighting_style) |
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145 | 145 | |
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146 | 146 | |
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147 | 147 | highlighting_style_overrides = Dict( |
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148 | 148 | help="Override highlighting format for specific tokens" |
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149 | 149 | ).tag(config=True) |
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150 | 150 | |
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151 | 151 | true_color = Bool(False, |
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152 | 152 | help=("Use 24bit colors instead of 256 colors in prompt highlighting. " |
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153 | 153 | "If your terminal supports true color, the following command " |
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154 | 154 | "should print 'TRUECOLOR' in orange: " |
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155 | 155 | "printf \"\\x1b[38;2;255;100;0mTRUECOLOR\\x1b[0m\\n\"") |
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156 | 156 | ).tag(config=True) |
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157 | 157 | |
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158 | 158 | editor = Unicode(get_default_editor(), |
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159 | 159 | help="Set the editor used by IPython (default to $EDITOR/vi/notepad)." |
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160 | 160 | ).tag(config=True) |
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161 | 161 | |
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162 | 162 | prompts_class = Type(Prompts, help='Class used to generate Prompt token for prompt_toolkit').tag(config=True) |
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163 | 163 | |
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164 | 164 | prompts = Instance(Prompts) |
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165 | 165 | |
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166 | 166 | @default('prompts') |
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167 | 167 | def _prompts_default(self): |
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168 | 168 | return self.prompts_class(self) |
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169 | 169 | |
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170 | 170 | @observe('prompts') |
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171 | 171 | def _(self, change): |
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172 | 172 | self._update_layout() |
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173 | 173 | |
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174 | 174 | @default('displayhook_class') |
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175 | 175 | def _displayhook_class_default(self): |
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176 | 176 | return RichPromptDisplayHook |
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177 | 177 | |
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178 | 178 | term_title = Bool(True, |
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179 | 179 | help="Automatically set the terminal title" |
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180 | 180 | ).tag(config=True) |
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181 | 181 | |
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182 | 182 | display_completions = Enum(('column', 'multicolumn','readlinelike'), |
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183 | 183 | help= ( "Options for displaying tab completions, 'column', 'multicolumn', and " |
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184 | 184 | "'readlinelike'. These options are for `prompt_toolkit`, see " |
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185 | 185 | "`prompt_toolkit` documentation for more information." |
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186 | 186 | ), |
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187 | 187 | default_value='multicolumn').tag(config=True) |
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188 | 188 | |
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189 | 189 | highlight_matching_brackets = Bool(True, |
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190 | 190 | help="Highlight matching brackets .", |
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191 | 191 | ).tag(config=True) |
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192 | 192 | |
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193 | 193 | @observe('term_title') |
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194 | 194 | def init_term_title(self, change=None): |
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195 | 195 | # Enable or disable the terminal title. |
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196 | 196 | if self.term_title: |
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197 | 197 | toggle_set_term_title(True) |
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198 | 198 | set_term_title('IPython: ' + abbrev_cwd()) |
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199 | 199 | else: |
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200 | 200 | toggle_set_term_title(False) |
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201 | 201 | |
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202 | 202 | def init_display_formatter(self): |
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203 | 203 | super(TerminalInteractiveShell, self).init_display_formatter() |
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204 | 204 | # terminal only supports plain text |
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205 | 205 | self.display_formatter.active_types = ['text/plain'] |
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206 | 206 | |
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207 | 207 | def init_prompt_toolkit_cli(self): |
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208 | 208 | if self.simple_prompt: |
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209 | 209 | # Fall back to plain non-interactive output for tests. |
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210 | 210 | # This is very limited, and only accepts a single line. |
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211 | 211 | def prompt(): |
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212 | 212 | return cast_unicode_py2(input('In [%d]: ' % self.execution_count)) |
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213 | 213 | self.prompt_for_code = prompt |
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214 | 214 | return |
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215 | 215 | |
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216 | 216 | # Set up keyboard shortcuts |
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217 | 217 | kbmanager = KeyBindingManager.for_prompt() |
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218 | 218 | register_ipython_shortcuts(kbmanager.registry, self) |
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219 | 219 | |
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220 | 220 | # Pre-populate history from IPython's history database |
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221 | 221 | history = InMemoryHistory() |
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222 | 222 | last_cell = u"" |
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223 | 223 | for __, ___, cell in self.history_manager.get_tail(self.history_load_length, |
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224 | 224 | include_latest=True): |
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225 | 225 | # Ignore blank lines and consecutive duplicates |
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226 | 226 | cell = cell.rstrip() |
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227 | 227 | if cell and (cell != last_cell): |
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228 | 228 | history.append(cell) |
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229 | 229 | last_cell = cell |
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230 | 230 | |
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231 | 231 | self._style = self._make_style_from_name_or_cls(self.highlighting_style) |
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232 | 232 | style = DynamicStyle(lambda: self._style) |
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233 | 233 | |
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234 | 234 | editing_mode = getattr(EditingMode, self.editing_mode.upper()) |
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235 | 235 | |
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236 | def patch_stdout(**kwargs): | |
|
237 | return self.pt_cli.patch_stdout_context(**kwargs) | |
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238 | ||
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236 | 239 | self._pt_app = create_prompt_application( |
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237 | 240 | editing_mode=editing_mode, |
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238 | 241 | key_bindings_registry=kbmanager.registry, |
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239 | 242 | history=history, |
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240 |
completer=IPythonPTCompleter(shell=self |
|
|
243 | completer=IPythonPTCompleter(shell=self, | |
|
244 | patch_stdout=patch_stdout), | |
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241 | 245 | enable_history_search=True, |
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242 | 246 | style=style, |
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243 | 247 | mouse_support=self.mouse_support, |
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244 | 248 | **self._layout_options() |
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245 | 249 | ) |
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246 | 250 | self._eventloop = create_eventloop(self.inputhook) |
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247 | 251 | self.pt_cli = CommandLineInterface( |
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248 | 252 | self._pt_app, eventloop=self._eventloop, |
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249 | 253 | output=create_output(true_color=self.true_color)) |
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250 | 254 | |
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251 | 255 | def _make_style_from_name_or_cls(self, name_or_cls): |
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252 | 256 | """ |
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253 | 257 | Small wrapper that make an IPython compatible style from a style name |
|
254 | 258 | |
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255 | 259 | We need that to add style for prompt ... etc. |
|
256 | 260 | """ |
|
257 | 261 | style_overrides = {} |
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258 | 262 | if name_or_cls == 'legacy': |
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259 | 263 | legacy = self.colors.lower() |
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260 | 264 | if legacy == 'linux': |
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261 | 265 | style_cls = get_style_by_name('monokai') |
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262 | 266 | style_overrides = _style_overrides_linux |
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263 | 267 | elif legacy == 'lightbg': |
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264 | 268 | style_overrides = _style_overrides_light_bg |
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265 | 269 | style_cls = get_style_by_name('pastie') |
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266 | 270 | elif legacy == 'neutral': |
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267 | 271 | # The default theme needs to be visible on both a dark background |
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268 | 272 | # and a light background, because we can't tell what the terminal |
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269 | 273 | # looks like. These tweaks to the default theme help with that. |
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270 | 274 | style_cls = get_style_by_name('default') |
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271 | 275 | style_overrides.update({ |
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272 | 276 | Token.Number: '#007700', |
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273 | 277 | Token.Operator: 'noinherit', |
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274 | 278 | Token.String: '#BB6622', |
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275 | 279 | Token.Name.Function: '#2080D0', |
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276 | 280 | Token.Name.Class: 'bold #2080D0', |
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277 | 281 | Token.Name.Namespace: 'bold #2080D0', |
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278 | 282 | Token.Prompt: '#009900', |
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279 | 283 | Token.PromptNum: '#00ff00 bold', |
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280 | 284 | Token.OutPrompt: '#990000', |
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281 | 285 | Token.OutPromptNum: '#ff0000 bold', |
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282 | 286 | }) |
|
283 | 287 | elif legacy =='nocolor': |
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284 | 288 | style_cls=_NoStyle |
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285 | 289 | style_overrides = {} |
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286 | 290 | else : |
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287 | 291 | raise ValueError('Got unknown colors: ', legacy) |
|
288 | 292 | else : |
|
289 | 293 | if isinstance(name_or_cls, str): |
|
290 | 294 | style_cls = get_style_by_name(name_or_cls) |
|
291 | 295 | else: |
|
292 | 296 | style_cls = name_or_cls |
|
293 | 297 | style_overrides = { |
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294 | 298 | Token.Prompt: '#009900', |
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295 | 299 | Token.PromptNum: '#00ff00 bold', |
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296 | 300 | Token.OutPrompt: '#990000', |
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297 | 301 | Token.OutPromptNum: '#ff0000 bold', |
|
298 | 302 | } |
|
299 | 303 | style_overrides.update(self.highlighting_style_overrides) |
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300 | 304 | style = PygmentsStyle.from_defaults(pygments_style_cls=style_cls, |
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301 | 305 | style_dict=style_overrides) |
|
302 | 306 | |
|
303 | 307 | return style |
|
304 | 308 | |
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305 | 309 | def _layout_options(self): |
|
306 | 310 | """ |
|
307 | 311 | Return the current layout option for the current Terminal InteractiveShell |
|
308 | 312 | """ |
|
309 | 313 | return { |
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310 | 314 | 'lexer':IPythonPTLexer(), |
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311 | 315 | 'reserve_space_for_menu':self.space_for_menu, |
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312 | 316 | 'get_prompt_tokens':self.prompts.in_prompt_tokens, |
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313 | 317 | 'get_continuation_tokens':self.prompts.continuation_prompt_tokens, |
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314 | 318 | 'multiline':True, |
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315 | 319 | 'display_completions_in_columns': (self.display_completions == 'multicolumn'), |
|
316 | 320 | |
|
317 | 321 | # Highlight matching brackets, but only when this setting is |
|
318 | 322 | # enabled, and only when the DEFAULT_BUFFER has the focus. |
|
319 | 323 | 'extra_input_processors': [ConditionalProcessor( |
|
320 | 324 | processor=HighlightMatchingBracketProcessor(chars='[](){}'), |
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321 | 325 | filter=HasFocus(DEFAULT_BUFFER) & ~IsDone() & |
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322 | 326 | Condition(lambda cli: self.highlight_matching_brackets))], |
|
323 | 327 | } |
|
324 | 328 | |
|
325 | 329 | def _update_layout(self): |
|
326 | 330 | """ |
|
327 | 331 | Ask for a re computation of the application layout, if for example , |
|
328 | 332 | some configuration options have changed. |
|
329 | 333 | """ |
|
330 | 334 | if self._pt_app: |
|
331 | 335 | self._pt_app.layout = create_prompt_layout(**self._layout_options()) |
|
332 | 336 | |
|
333 | 337 | def prompt_for_code(self): |
|
334 | 338 | document = self.pt_cli.run( |
|
335 | 339 | pre_run=self.pre_prompt, reset_current_buffer=True) |
|
336 | 340 | return document.text |
|
337 | 341 | |
|
338 | 342 | def enable_win_unicode_console(self): |
|
339 | 343 | if sys.version_info >= (3, 6): |
|
340 | 344 | # Since PEP 528, Python uses the unicode APIs for the Windows |
|
341 | 345 | # console by default, so WUC shouldn't be needed. |
|
342 | 346 | return |
|
343 | 347 | |
|
344 | 348 | import win_unicode_console |
|
345 | 349 | win_unicode_console.enable() |
|
346 | 350 | |
|
347 | 351 | def init_io(self): |
|
348 | 352 | if sys.platform not in {'win32', 'cli'}: |
|
349 | 353 | return |
|
350 | 354 | |
|
351 | 355 | self.enable_win_unicode_console() |
|
352 | 356 | |
|
353 | 357 | import colorama |
|
354 | 358 | colorama.init() |
|
355 | 359 | |
|
356 | 360 | # For some reason we make these wrappers around stdout/stderr. |
|
357 | 361 | # For now, we need to reset them so all output gets coloured. |
|
358 | 362 | # https://github.com/ipython/ipython/issues/8669 |
|
359 | 363 | # io.std* are deprecated, but don't show our own deprecation warnings |
|
360 | 364 | # during initialization of the deprecated API. |
|
361 | 365 | with warnings.catch_warnings(): |
|
362 | 366 | warnings.simplefilter('ignore', DeprecationWarning) |
|
363 | 367 | io.stdout = io.IOStream(sys.stdout) |
|
364 | 368 | io.stderr = io.IOStream(sys.stderr) |
|
365 | 369 | |
|
366 | 370 | def init_magics(self): |
|
367 | 371 | super(TerminalInteractiveShell, self).init_magics() |
|
368 | 372 | self.register_magics(TerminalMagics) |
|
369 | 373 | |
|
370 | 374 | def init_alias(self): |
|
371 | 375 | # The parent class defines aliases that can be safely used with any |
|
372 | 376 | # frontend. |
|
373 | 377 | super(TerminalInteractiveShell, self).init_alias() |
|
374 | 378 | |
|
375 | 379 | # Now define aliases that only make sense on the terminal, because they |
|
376 | 380 | # need direct access to the console in a way that we can't emulate in |
|
377 | 381 | # GUI or web frontend |
|
378 | 382 | if os.name == 'posix': |
|
379 | 383 | for cmd in ['clear', 'more', 'less', 'man']: |
|
380 | 384 | self.alias_manager.soft_define_alias(cmd, cmd) |
|
381 | 385 | |
|
382 | 386 | |
|
383 | 387 | def __init__(self, *args, **kwargs): |
|
384 | 388 | super(TerminalInteractiveShell, self).__init__(*args, **kwargs) |
|
385 | 389 | self.init_prompt_toolkit_cli() |
|
386 | 390 | self.init_term_title() |
|
387 | 391 | self.keep_running = True |
|
388 | 392 | |
|
389 | 393 | self.debugger_history = InMemoryHistory() |
|
390 | 394 | |
|
391 | 395 | def ask_exit(self): |
|
392 | 396 | self.keep_running = False |
|
393 | 397 | |
|
394 | 398 | rl_next_input = None |
|
395 | 399 | |
|
396 | 400 | def pre_prompt(self): |
|
397 | 401 | if self.rl_next_input: |
|
398 | 402 | self.pt_cli.application.buffer.text = cast_unicode_py2(self.rl_next_input) |
|
399 | 403 | self.rl_next_input = None |
|
400 | 404 | |
|
401 | 405 | def interact(self, display_banner=DISPLAY_BANNER_DEPRECATED): |
|
402 | 406 | |
|
403 | 407 | if display_banner is not DISPLAY_BANNER_DEPRECATED: |
|
404 | 408 | warn('interact `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2) |
|
405 | 409 | |
|
406 | 410 | self.keep_running = True |
|
407 | 411 | while self.keep_running: |
|
408 | 412 | print(self.separate_in, end='') |
|
409 | 413 | |
|
410 | 414 | try: |
|
411 | 415 | code = self.prompt_for_code() |
|
412 | 416 | except EOFError: |
|
413 | 417 | if (not self.confirm_exit) \ |
|
414 | 418 | or self.ask_yes_no('Do you really want to exit ([y]/n)?','y','n'): |
|
415 | 419 | self.ask_exit() |
|
416 | 420 | |
|
417 | 421 | else: |
|
418 | 422 | if code: |
|
419 | 423 | self.run_cell(code, store_history=True) |
|
420 | 424 | |
|
421 | 425 | def mainloop(self, display_banner=DISPLAY_BANNER_DEPRECATED): |
|
422 | 426 | # An extra layer of protection in case someone mashing Ctrl-C breaks |
|
423 | 427 | # out of our internal code. |
|
424 | 428 | if display_banner is not DISPLAY_BANNER_DEPRECATED: |
|
425 | 429 | warn('mainloop `display_banner` argument is deprecated since IPython 5.0. Call `show_banner()` if needed.', DeprecationWarning, stacklevel=2) |
|
426 | 430 | while True: |
|
427 | 431 | try: |
|
428 | 432 | self.interact() |
|
429 | 433 | break |
|
430 | 434 | except KeyboardInterrupt as e: |
|
431 | 435 | print("\n%s escaped interact()\n" % type(e).__name__) |
|
432 | 436 | finally: |
|
433 | 437 | # An interrupt during the eventloop will mess up the |
|
434 | 438 | # internal state of the prompt_toolkit library. |
|
435 | 439 | # Stopping the eventloop fixes this, see |
|
436 | 440 | # https://github.com/ipython/ipython/pull/9867 |
|
437 | 441 | if hasattr(self, '_eventloop'): |
|
438 | 442 | self._eventloop.stop() |
|
439 | 443 | |
|
440 | 444 | _inputhook = None |
|
441 | 445 | def inputhook(self, context): |
|
442 | 446 | if self._inputhook is not None: |
|
443 | 447 | self._inputhook(context) |
|
444 | 448 | |
|
445 | 449 | active_eventloop = None |
|
446 | 450 | def enable_gui(self, gui=None): |
|
447 | 451 | if gui: |
|
448 | 452 | self.active_eventloop, self._inputhook =\ |
|
449 | 453 | get_inputhook_name_and_func(gui) |
|
450 | 454 | else: |
|
451 | 455 | self.active_eventloop = self._inputhook = None |
|
452 | 456 | |
|
453 | 457 | # Run !system commands directly, not through pipes, so terminal programs |
|
454 | 458 | # work correctly. |
|
455 | 459 | system = InteractiveShell.system_raw |
|
456 | 460 | |
|
457 | 461 | def auto_rewrite_input(self, cmd): |
|
458 | 462 | """Overridden from the parent class to use fancy rewriting prompt""" |
|
459 | 463 | if not self.show_rewritten_input: |
|
460 | 464 | return |
|
461 | 465 | |
|
462 | 466 | tokens = self.prompts.rewrite_prompt_tokens() |
|
463 | 467 | if self.pt_cli: |
|
464 | 468 | self.pt_cli.print_tokens(tokens) |
|
465 | 469 | print(cmd) |
|
466 | 470 | else: |
|
467 | 471 | prompt = ''.join(s for t, s in tokens) |
|
468 | 472 | print(prompt, cmd, sep='') |
|
469 | 473 | |
|
470 | 474 | _prompts_before = None |
|
471 | 475 | def switch_doctest_mode(self, mode): |
|
472 | 476 | """Switch prompts to classic for %doctest_mode""" |
|
473 | 477 | if mode: |
|
474 | 478 | self._prompts_before = self.prompts |
|
475 | 479 | self.prompts = ClassicPrompts(self) |
|
476 | 480 | elif self._prompts_before: |
|
477 | 481 | self.prompts = self._prompts_before |
|
478 | 482 | self._prompts_before = None |
|
479 | 483 | self._update_layout() |
|
480 | 484 | |
|
481 | 485 | |
|
482 | 486 | InteractiveShellABC.register(TerminalInteractiveShell) |
|
483 | 487 | |
|
484 | 488 | if __name__ == '__main__': |
|
485 | 489 | TerminalInteractiveShell.instance().interact() |
@@ -1,110 +1,113 b'' | |||
|
1 | 1 | """prompt-toolkit utilities |
|
2 | 2 | |
|
3 | 3 | Everything in this module is a private API, |
|
4 | 4 | not to be used outside IPython. |
|
5 | 5 | """ |
|
6 | 6 | |
|
7 | 7 | # Copyright (c) IPython Development Team. |
|
8 | 8 | # Distributed under the terms of the Modified BSD License. |
|
9 | 9 | |
|
10 | 10 | import unicodedata |
|
11 | 11 | from wcwidth import wcwidth |
|
12 | 12 | |
|
13 | 13 | from IPython.core.completer import IPCompleter |
|
14 | 14 | from prompt_toolkit.completion import Completer, Completion |
|
15 | 15 | from prompt_toolkit.layout.lexers import Lexer |
|
16 | 16 | from prompt_toolkit.layout.lexers import PygmentsLexer |
|
17 | 17 | |
|
18 | 18 | import pygments.lexers as pygments_lexers |
|
19 | 19 | |
|
20 | 20 | |
|
21 | 21 | class IPythonPTCompleter(Completer): |
|
22 | 22 | """Adaptor to provide IPython completions to prompt_toolkit""" |
|
23 | def __init__(self, ipy_completer=None, shell=None): | |
|
23 | def __init__(self, ipy_completer=None, shell=None, patch_stdout=None): | |
|
24 | 24 | if shell is None and ipy_completer is None: |
|
25 | 25 | raise TypeError("Please pass shell=an InteractiveShell instance.") |
|
26 | 26 | self._ipy_completer = ipy_completer |
|
27 | 27 | self.shell = shell |
|
28 | if patch_stdout is None: | |
|
29 | raise TypeError("Please pass patch_stdout") | |
|
30 | self.patch_stdout = patch_stdout | |
|
28 | 31 | |
|
29 | 32 | @property |
|
30 | 33 | def ipy_completer(self): |
|
31 | 34 | if self._ipy_completer: |
|
32 | 35 | return self._ipy_completer |
|
33 | 36 | else: |
|
34 | 37 | return self.shell.Completer |
|
35 | 38 | |
|
36 | 39 | def get_completions(self, document, complete_event): |
|
37 | 40 | if not document.current_line.strip(): |
|
38 | 41 | return |
|
39 | 42 | |
|
40 | 43 | # Some bits of our completion system may print stuff (e.g. if a module |
|
41 | 44 | # is imported). This context manager ensures that doesn't interfere with |
|
42 | 45 | # the prompt. |
|
43 |
with self. |
|
|
46 | with self.patch_stdout(): | |
|
44 | 47 | used, matches = self.ipy_completer.complete( |
|
45 | 48 | line_buffer=document.current_line, |
|
46 | 49 | cursor_pos=document.cursor_position_col |
|
47 | 50 | ) |
|
48 | 51 | start_pos = -len(used) |
|
49 | 52 | for m in matches: |
|
50 | 53 | if not m: |
|
51 | 54 | # Guard against completion machinery giving us an empty string. |
|
52 | 55 | continue |
|
53 | 56 | |
|
54 | 57 | m = unicodedata.normalize('NFC', m) |
|
55 | 58 | |
|
56 | 59 | # When the first character of the completion has a zero length, |
|
57 | 60 | # then it's probably a decomposed unicode character. E.g. caused by |
|
58 | 61 | # the "\dot" completion. Try to compose again with the previous |
|
59 | 62 | # character. |
|
60 | 63 | if wcwidth(m[0]) == 0: |
|
61 | 64 | if document.cursor_position + start_pos > 0: |
|
62 | 65 | char_before = document.text[document.cursor_position + start_pos - 1] |
|
63 | 66 | m = unicodedata.normalize('NFC', char_before + m) |
|
64 | 67 | |
|
65 | 68 | # Yield the modified completion instead, if this worked. |
|
66 | 69 | if wcwidth(m[0:1]) == 1: |
|
67 | 70 | yield Completion(m, start_position=start_pos - 1) |
|
68 | 71 | continue |
|
69 | 72 | |
|
70 | 73 | # TODO: Use Jedi to determine meta_text |
|
71 | 74 | # (Jedi currently has a bug that results in incorrect information.) |
|
72 | 75 | # meta_text = '' |
|
73 | 76 | # yield Completion(m, start_position=start_pos, |
|
74 | 77 | # display_meta=meta_text) |
|
75 | 78 | yield Completion(m, start_position=start_pos) |
|
76 | 79 | |
|
77 | 80 | class IPythonPTLexer(Lexer): |
|
78 | 81 | """ |
|
79 | 82 | Wrapper around PythonLexer and BashLexer. |
|
80 | 83 | """ |
|
81 | 84 | def __init__(self): |
|
82 | 85 | l = pygments_lexers |
|
83 | 86 | self.python_lexer = PygmentsLexer(l.Python3Lexer) |
|
84 | 87 | self.shell_lexer = PygmentsLexer(l.BashLexer) |
|
85 | 88 | |
|
86 | 89 | self.magic_lexers = { |
|
87 | 90 | 'HTML': PygmentsLexer(l.HtmlLexer), |
|
88 | 91 | 'html': PygmentsLexer(l.HtmlLexer), |
|
89 | 92 | 'javascript': PygmentsLexer(l.JavascriptLexer), |
|
90 | 93 | 'js': PygmentsLexer(l.JavascriptLexer), |
|
91 | 94 | 'perl': PygmentsLexer(l.PerlLexer), |
|
92 | 95 | 'ruby': PygmentsLexer(l.RubyLexer), |
|
93 | 96 | 'latex': PygmentsLexer(l.TexLexer), |
|
94 | 97 | } |
|
95 | 98 | |
|
96 | 99 | def lex_document(self, cli, document): |
|
97 | 100 | text = document.text.lstrip() |
|
98 | 101 | |
|
99 | 102 | lexer = self.python_lexer |
|
100 | 103 | |
|
101 | 104 | if text.startswith('!') or text.startswith('%%bash'): |
|
102 | 105 | lexer = self.shell_lexer |
|
103 | 106 | |
|
104 | 107 | elif text.startswith('%%'): |
|
105 | 108 | for magic, l in self.magic_lexers.items(): |
|
106 | 109 | if text.startswith('%%' + magic): |
|
107 | 110 | lexer = l |
|
108 | 111 | break |
|
109 | 112 | |
|
110 | 113 | return lexer.lex_document(cli, document) |
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