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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 asyncio |
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4 | 4 | import os |
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5 | 5 | import sys |
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6 | 6 | from warnings import warn |
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7 | 7 | from typing import Union as UnionType, Optional |
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8 | 8 | |
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9 | 9 | from IPython.core.async_helpers import get_asyncio_loop |
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10 | 10 | from IPython.core.interactiveshell import InteractiveShell, InteractiveShellABC |
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11 | 11 | from IPython.utils.py3compat import input |
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12 | 12 | from IPython.utils.terminal import toggle_set_term_title, set_term_title, restore_term_title |
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13 | 13 | from IPython.utils.process import abbrev_cwd |
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14 | 14 | from traitlets import ( |
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15 | 15 | Bool, |
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16 | 16 | Unicode, |
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17 | 17 | Dict, |
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18 | 18 | Integer, |
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19 | 19 | List, |
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20 | 20 | observe, |
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21 | 21 | Instance, |
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22 | 22 | Type, |
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23 | 23 | default, |
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24 | 24 | Enum, |
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25 | 25 | Union, |
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26 | 26 | Any, |
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27 | 27 | validate, |
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28 | 28 | Float, |
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29 | 29 | ) |
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30 | 30 | |
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31 | 31 | from prompt_toolkit.auto_suggest import AutoSuggestFromHistory |
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32 | 32 | from prompt_toolkit.enums import DEFAULT_BUFFER, EditingMode |
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33 | 33 | from prompt_toolkit.filters import HasFocus, Condition, IsDone |
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34 | 34 | from prompt_toolkit.formatted_text import PygmentsTokens |
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35 | 35 | from prompt_toolkit.history import History |
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36 | 36 | from prompt_toolkit.layout.processors import ConditionalProcessor, HighlightMatchingBracketProcessor |
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37 | 37 | from prompt_toolkit.output import ColorDepth |
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38 | 38 | from prompt_toolkit.patch_stdout import patch_stdout |
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39 | 39 | from prompt_toolkit.shortcuts import PromptSession, CompleteStyle, print_formatted_text |
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40 | 40 | from prompt_toolkit.styles import DynamicStyle, merge_styles |
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41 | 41 | from prompt_toolkit.styles.pygments import style_from_pygments_cls, style_from_pygments_dict |
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42 | 42 | from prompt_toolkit import __version__ as ptk_version |
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43 | 43 | |
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44 | 44 | from pygments.styles import get_style_by_name |
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45 | 45 | from pygments.style import Style |
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46 | 46 | from pygments.token import Token |
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47 | 47 | |
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48 | 48 | from .debugger import TerminalPdb, Pdb |
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49 | 49 | from .magics import TerminalMagics |
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50 | 50 | from .pt_inputhooks import get_inputhook_name_and_func |
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51 | 51 | from .prompts import Prompts, ClassicPrompts, RichPromptDisplayHook |
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52 | 52 | from .ptutils import IPythonPTCompleter, IPythonPTLexer |
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53 | 53 | from .shortcuts import ( |
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54 | 54 | KEY_BINDINGS, |
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55 | 55 | create_ipython_shortcuts, |
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56 | 56 | create_identifier, |
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57 | 57 | RuntimeBinding, |
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58 | 58 | add_binding, |
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59 | 59 | ) |
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60 | 60 | from .shortcuts.filters import KEYBINDING_FILTERS, filter_from_string |
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61 | 61 | from .shortcuts.auto_suggest import ( |
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62 | 62 | NavigableAutoSuggestFromHistory, |
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63 | 63 | AppendAutoSuggestionInAnyLine, |
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64 | 64 | ) |
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65 | 65 | |
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66 | 66 | PTK3 = ptk_version.startswith('3.') |
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67 | 67 | |
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68 | 68 | |
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69 | 69 | class _NoStyle(Style): pass |
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70 | 70 | |
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71 | 71 | |
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72 | 72 | |
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73 | 73 | _style_overrides_light_bg = { |
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74 | 74 | Token.Prompt: '#ansibrightblue', |
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75 | 75 | Token.PromptNum: '#ansiblue bold', |
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76 | 76 | Token.OutPrompt: '#ansibrightred', |
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77 | 77 | Token.OutPromptNum: '#ansired bold', |
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78 | 78 | } |
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79 | 79 | |
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80 | 80 | _style_overrides_linux = { |
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81 | 81 | Token.Prompt: '#ansibrightgreen', |
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82 | 82 | Token.PromptNum: '#ansigreen bold', |
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83 | 83 | Token.OutPrompt: '#ansibrightred', |
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84 | 84 | Token.OutPromptNum: '#ansired bold', |
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85 | 85 | } |
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86 | 86 | |
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87 | 87 | def get_default_editor(): |
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88 | 88 | try: |
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89 | 89 | return os.environ['EDITOR'] |
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90 | 90 | except KeyError: |
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91 | 91 | pass |
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92 | 92 | except UnicodeError: |
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93 | 93 | warn("$EDITOR environment variable is not pure ASCII. Using platform " |
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94 | 94 | "default editor.") |
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95 | 95 | |
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96 | 96 | if os.name == 'posix': |
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97 | 97 | return 'vi' # the only one guaranteed to be there! |
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98 | 98 | else: |
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99 | 99 | return 'notepad' # same in Windows! |
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100 | 100 | |
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101 | 101 | # conservatively check for tty |
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102 | 102 | # overridden streams can result in things like: |
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103 | 103 | # - sys.stdin = None |
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104 | 104 | # - no isatty method |
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105 | 105 | for _name in ('stdin', 'stdout', 'stderr'): |
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106 | 106 | _stream = getattr(sys, _name) |
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107 | 107 | try: |
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108 | 108 | if not _stream or not hasattr(_stream, "isatty") or not _stream.isatty(): |
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109 | 109 | _is_tty = False |
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110 | 110 | break |
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111 | 111 | except ValueError: |
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112 | 112 | # stream is closed |
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113 | 113 | _is_tty = False |
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114 | 114 | break |
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115 | 115 | else: |
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116 | 116 | _is_tty = True |
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117 | 117 | |
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118 | 118 | |
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119 | 119 | _use_simple_prompt = ('IPY_TEST_SIMPLE_PROMPT' in os.environ) or (not _is_tty) |
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120 | 120 | |
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121 | 121 | def black_reformat_handler(text_before_cursor): |
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122 | 122 | """ |
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123 | 123 | We do not need to protect against error, |
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124 | 124 | this is taken care at a higher level where any reformat error is ignored. |
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125 | 125 | Indeed we may call reformatting on incomplete code. |
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126 | 126 | """ |
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127 | 127 | import black |
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128 | 128 | |
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129 | 129 | formatted_text = black.format_str(text_before_cursor, mode=black.FileMode()) |
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130 | 130 | if not text_before_cursor.endswith("\n") and formatted_text.endswith("\n"): |
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131 | 131 | formatted_text = formatted_text[:-1] |
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132 | 132 | return formatted_text |
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133 | 133 | |
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134 | 134 | |
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135 | 135 | def yapf_reformat_handler(text_before_cursor): |
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136 | 136 | from yapf.yapflib import file_resources |
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137 | 137 | from yapf.yapflib import yapf_api |
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138 | 138 | |
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139 | 139 | style_config = file_resources.GetDefaultStyleForDir(os.getcwd()) |
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140 | 140 | formatted_text, was_formatted = yapf_api.FormatCode( |
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141 | 141 | text_before_cursor, style_config=style_config |
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142 | 142 | ) |
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143 | 143 | if was_formatted: |
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144 | 144 | if not text_before_cursor.endswith("\n") and formatted_text.endswith("\n"): |
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145 | 145 | formatted_text = formatted_text[:-1] |
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146 | 146 | return formatted_text |
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147 | 147 | else: |
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148 | 148 | return text_before_cursor |
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149 | 149 | |
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150 | 150 | |
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151 | 151 | class PtkHistoryAdapter(History): |
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152 | 152 | """ |
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153 | 153 | Prompt toolkit has it's own way of handling history, Where it assumes it can |
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154 | 154 | Push/pull from history. |
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155 | 155 | |
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156 | 156 | """ |
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157 | 157 | |
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158 | 158 | def __init__(self, shell): |
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159 | 159 | super().__init__() |
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160 | 160 | self.shell = shell |
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161 | 161 | self._refresh() |
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162 | 162 | |
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163 | 163 | def append_string(self, string): |
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164 | 164 | # we rely on sql for that. |
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165 | 165 | self._loaded = False |
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166 | 166 | self._refresh() |
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167 | 167 | |
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168 | 168 | def _refresh(self): |
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169 | 169 | if not self._loaded: |
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170 | 170 | self._loaded_strings = list(self.load_history_strings()) |
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171 | 171 | |
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172 | 172 | def load_history_strings(self): |
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173 | 173 | last_cell = "" |
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174 | 174 | res = [] |
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175 | 175 | for __, ___, cell in self.shell.history_manager.get_tail( |
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176 | 176 | self.shell.history_load_length, include_latest=True |
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177 | 177 | ): |
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178 | 178 | # Ignore blank lines and consecutive duplicates |
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179 | 179 | cell = cell.rstrip() |
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180 | 180 | if cell and (cell != last_cell): |
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181 | 181 | res.append(cell) |
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182 | 182 | last_cell = cell |
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183 | 183 | yield from res[::-1] |
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184 | 184 | |
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185 | 185 | def store_string(self, string: str) -> None: |
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186 | 186 | pass |
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187 | 187 | |
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188 | 188 | class TerminalInteractiveShell(InteractiveShell): |
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189 | 189 | mime_renderers = Dict().tag(config=True) |
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190 | 190 | |
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191 | 191 | space_for_menu = Integer(6, help='Number of line at the bottom of the screen ' |
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192 | 192 | 'to reserve for the tab completion menu, ' |
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193 | 193 | 'search history, ...etc, the height of ' |
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194 | 194 | 'these menus will at most this value. ' |
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195 | 195 | 'Increase it is you prefer long and skinny ' |
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196 | 196 | 'menus, decrease for short and wide.' |
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197 | 197 | ).tag(config=True) |
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198 | 198 | |
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199 | 199 | pt_app: UnionType[PromptSession, None] = None |
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200 | 200 | auto_suggest: UnionType[ |
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201 | 201 | AutoSuggestFromHistory, NavigableAutoSuggestFromHistory, None |
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202 | 202 | ] = None |
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203 | 203 | debugger_history = None |
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204 | 204 | |
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205 | 205 | debugger_history_file = Unicode( |
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206 | 206 | "~/.pdbhistory", help="File in which to store and read history" |
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207 | 207 | ).tag(config=True) |
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208 | 208 | |
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209 | 209 | simple_prompt = Bool(_use_simple_prompt, |
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210 | 210 | help="""Use `raw_input` for the REPL, without completion and prompt colors. |
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211 | 211 | |
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212 | 212 | Useful when controlling IPython as a subprocess, and piping STDIN/OUT/ERR. Known usage are: |
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213 | 213 | IPython own testing machinery, and emacs inferior-shell integration through elpy. |
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214 | 214 | |
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215 | 215 | This mode default to `True` if the `IPY_TEST_SIMPLE_PROMPT` |
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216 | 216 | environment variable is set, or the current terminal is not a tty.""" |
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217 | 217 | ).tag(config=True) |
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218 | 218 | |
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219 | 219 | @property |
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220 | 220 | def debugger_cls(self): |
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221 | 221 | return Pdb if self.simple_prompt else TerminalPdb |
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222 | 222 | |
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223 | 223 | confirm_exit = Bool(True, |
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224 | 224 | help=""" |
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225 | 225 | Set to confirm when you try to exit IPython with an EOF (Control-D |
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226 | 226 | in Unix, Control-Z/Enter in Windows). By typing 'exit' or 'quit', |
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227 | 227 | you can force a direct exit without any confirmation.""", |
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228 | 228 | ).tag(config=True) |
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229 | 229 | |
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230 | 230 | editing_mode = Unicode('emacs', |
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231 | 231 | help="Shortcut style to use at the prompt. 'vi' or 'emacs'.", |
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232 | 232 | ).tag(config=True) |
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233 | 233 | |
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234 | 234 | emacs_bindings_in_vi_insert_mode = Bool( |
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235 | 235 | True, |
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236 | 236 | help="Add shortcuts from 'emacs' insert mode to 'vi' insert mode.", |
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237 | 237 | ).tag(config=True) |
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238 | 238 | |
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239 | 239 | modal_cursor = Bool( |
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240 | 240 | True, |
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241 | 241 | help=""" |
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242 | 242 | Cursor shape changes depending on vi mode: beam in vi insert mode, |
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243 | 243 | block in nav mode, underscore in replace mode.""", |
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244 | 244 | ).tag(config=True) |
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245 | 245 | |
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246 | 246 | ttimeoutlen = Float( |
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247 | 247 | 0.01, |
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248 | 248 | help="""The time in milliseconds that is waited for a key code |
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249 | 249 | to complete.""", |
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250 | 250 | ).tag(config=True) |
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251 | 251 | |
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252 | 252 | timeoutlen = Float( |
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253 | 253 | 0.5, |
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254 | 254 | help="""The time in milliseconds that is waited for a mapped key |
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255 | 255 | sequence to complete.""", |
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256 | 256 | ).tag(config=True) |
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257 | 257 | |
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258 | 258 | autoformatter = Unicode( |
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259 | 259 | None, |
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260 | 260 | help="Autoformatter to reformat Terminal code. Can be `'black'`, `'yapf'` or `None`", |
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261 | 261 | allow_none=True |
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262 | 262 | ).tag(config=True) |
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263 | 263 | |
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264 | 264 | auto_match = Bool( |
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265 | 265 | False, |
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266 | 266 | help=""" |
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267 | 267 | Automatically add/delete closing bracket or quote when opening bracket or quote is entered/deleted. |
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268 | 268 | Brackets: (), [], {} |
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269 | 269 | Quotes: '', \"\" |
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270 | 270 | """, |
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271 | 271 | ).tag(config=True) |
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272 | 272 | |
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273 | 273 | mouse_support = Bool(False, |
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274 | 274 | help="Enable mouse support in the prompt\n(Note: prevents selecting text with the mouse)" |
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275 | 275 | ).tag(config=True) |
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276 | 276 | |
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277 | 277 | # We don't load the list of styles for the help string, because loading |
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278 | 278 | # Pygments plugins takes time and can cause unexpected errors. |
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279 | 279 | highlighting_style = Union([Unicode('legacy'), Type(klass=Style)], |
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280 | 280 | help="""The name or class of a Pygments style to use for syntax |
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281 | 281 | highlighting. To see available styles, run `pygmentize -L styles`.""" |
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282 | 282 | ).tag(config=True) |
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283 | 283 | |
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284 | 284 | @validate('editing_mode') |
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285 | 285 | def _validate_editing_mode(self, proposal): |
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286 | 286 | if proposal['value'].lower() == 'vim': |
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287 | 287 | proposal['value']= 'vi' |
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288 | 288 | elif proposal['value'].lower() == 'default': |
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289 | 289 | proposal['value']= 'emacs' |
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290 | 290 | |
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291 | 291 | if hasattr(EditingMode, proposal['value'].upper()): |
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292 | 292 | return proposal['value'].lower() |
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293 | 293 | |
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294 | 294 | return self.editing_mode |
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295 | 295 | |
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296 | 296 | |
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297 | 297 | @observe('editing_mode') |
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298 | 298 | def _editing_mode(self, change): |
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299 | 299 | if self.pt_app: |
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300 | 300 | self.pt_app.editing_mode = getattr(EditingMode, change.new.upper()) |
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301 | 301 | |
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302 | 302 | def _set_formatter(self, formatter): |
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303 | 303 | if formatter is None: |
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304 | 304 | self.reformat_handler = lambda x:x |
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305 | 305 | elif formatter == 'black': |
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306 | 306 | self.reformat_handler = black_reformat_handler |
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307 | 307 | elif formatter == "yapf": |
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308 | 308 | self.reformat_handler = yapf_reformat_handler |
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309 | 309 | else: |
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310 | 310 | raise ValueError |
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311 | 311 | |
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312 | 312 | @observe("autoformatter") |
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313 | 313 | def _autoformatter_changed(self, change): |
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314 | 314 | formatter = change.new |
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315 | 315 | self._set_formatter(formatter) |
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316 | 316 | |
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317 | 317 | @observe('highlighting_style') |
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318 | 318 | @observe('colors') |
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319 | 319 | def _highlighting_style_changed(self, change): |
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320 | 320 | self.refresh_style() |
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321 | 321 | |
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322 | 322 | def refresh_style(self): |
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323 | 323 | self._style = self._make_style_from_name_or_cls(self.highlighting_style) |
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324 | 324 | |
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325 | 325 | |
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326 | 326 | highlighting_style_overrides = Dict( |
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327 | 327 | help="Override highlighting format for specific tokens" |
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328 | 328 | ).tag(config=True) |
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329 | 329 | |
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330 | 330 | true_color = Bool(False, |
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331 | 331 | help="""Use 24bit colors instead of 256 colors in prompt highlighting. |
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332 | 332 | If your terminal supports true color, the following command should |
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333 | 333 | print ``TRUECOLOR`` in orange:: |
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334 | 334 | |
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335 | 335 | printf \"\\x1b[38;2;255;100;0mTRUECOLOR\\x1b[0m\\n\" |
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336 | 336 | """, |
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337 | 337 | ).tag(config=True) |
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338 | 338 | |
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339 | 339 | editor = Unicode(get_default_editor(), |
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340 | 340 | help="Set the editor used by IPython (default to $EDITOR/vi/notepad)." |
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341 | 341 | ).tag(config=True) |
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342 | 342 | |
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343 | 343 | prompts_class = Type(Prompts, help='Class used to generate Prompt token for prompt_toolkit').tag(config=True) |
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344 | 344 | |
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345 | 345 | prompts = Instance(Prompts) |
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346 | 346 | |
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347 | 347 | @default('prompts') |
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348 | 348 | def _prompts_default(self): |
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349 | 349 | return self.prompts_class(self) |
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350 | 350 | |
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351 | 351 | # @observe('prompts') |
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352 | 352 | # def _(self, change): |
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353 | 353 | # self._update_layout() |
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354 | 354 | |
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355 | 355 | @default('displayhook_class') |
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356 | 356 | def _displayhook_class_default(self): |
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357 | 357 | return RichPromptDisplayHook |
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358 | 358 | |
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359 | 359 | term_title = Bool(True, |
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360 | 360 | help="Automatically set the terminal title" |
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361 | 361 | ).tag(config=True) |
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362 | 362 | |
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363 | 363 | term_title_format = Unicode("IPython: {cwd}", |
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364 | 364 | help="Customize the terminal title format. This is a python format string. " + |
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365 | 365 | "Available substitutions are: {cwd}." |
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366 | 366 | ).tag(config=True) |
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367 | 367 | |
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368 | 368 | display_completions = Enum(('column', 'multicolumn','readlinelike'), |
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369 | 369 | help= ( "Options for displaying tab completions, 'column', 'multicolumn', and " |
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370 | 370 | "'readlinelike'. These options are for `prompt_toolkit`, see " |
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371 | 371 | "`prompt_toolkit` documentation for more information." |
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372 | 372 | ), |
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373 | 373 | default_value='multicolumn').tag(config=True) |
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374 | 374 | |
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375 | 375 | highlight_matching_brackets = Bool(True, |
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376 | 376 | help="Highlight matching brackets.", |
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377 | 377 | ).tag(config=True) |
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378 | 378 | |
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379 | 379 | extra_open_editor_shortcuts = Bool(False, |
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380 | 380 | help="Enable vi (v) or Emacs (C-X C-E) shortcuts to open an external editor. " |
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381 | 381 | "This is in addition to the F2 binding, which is always enabled." |
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382 | 382 | ).tag(config=True) |
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383 | 383 | |
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384 | 384 | handle_return = Any(None, |
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385 | 385 | help="Provide an alternative handler to be called when the user presses " |
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386 | 386 | "Return. This is an advanced option intended for debugging, which " |
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387 | 387 | "may be changed or removed in later releases." |
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388 | 388 | ).tag(config=True) |
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389 | 389 | |
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390 | 390 | enable_history_search = Bool(True, |
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391 | 391 | help="Allows to enable/disable the prompt toolkit history search" |
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392 | 392 | ).tag(config=True) |
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393 | 393 | |
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394 | 394 | autosuggestions_provider = Unicode( |
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395 | 395 | "NavigableAutoSuggestFromHistory", |
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396 | 396 | help="Specifies from which source automatic suggestions are provided. " |
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397 | 397 | "Can be set to ``'NavigableAutoSuggestFromHistory'`` (:kbd:`up` and " |
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398 | 398 | ":kbd:`down` swap suggestions), ``'AutoSuggestFromHistory'``, " |
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399 | 399 | " or ``None`` to disable automatic suggestions. " |
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400 | 400 | "Default is `'NavigableAutoSuggestFromHistory`'.", |
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401 | 401 | allow_none=True, |
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402 | 402 | ).tag(config=True) |
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403 | 403 | |
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404 | 404 | def _set_autosuggestions(self, provider): |
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405 | 405 | # disconnect old handler |
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406 | 406 | if self.auto_suggest and isinstance( |
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407 | 407 | self.auto_suggest, NavigableAutoSuggestFromHistory |
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408 | 408 | ): |
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409 | 409 | self.auto_suggest.disconnect() |
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410 | 410 | if provider is None: |
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411 | 411 | self.auto_suggest = None |
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412 | 412 | elif provider == "AutoSuggestFromHistory": |
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413 | 413 | self.auto_suggest = AutoSuggestFromHistory() |
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414 | 414 | elif provider == "NavigableAutoSuggestFromHistory": |
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415 | 415 | self.auto_suggest = NavigableAutoSuggestFromHistory() |
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416 | 416 | else: |
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417 | 417 | raise ValueError("No valid provider.") |
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418 | 418 | if self.pt_app: |
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419 | 419 | self.pt_app.auto_suggest = self.auto_suggest |
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420 | 420 | |
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421 | 421 | @observe("autosuggestions_provider") |
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422 | 422 | def _autosuggestions_provider_changed(self, change): |
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423 | 423 | provider = change.new |
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424 | 424 | self._set_autosuggestions(provider) |
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425 | 425 | |
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426 | 426 | shortcuts = List( |
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427 | 427 | trait=Dict( |
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428 | 428 | key_trait=Enum( |
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429 | 429 | [ |
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430 | 430 | "command", |
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431 | 431 | "match_keys", |
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432 | 432 | "match_filter", |
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433 | 433 | "new_keys", |
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434 | 434 | "new_filter", |
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435 | 435 | "create", |
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436 | 436 | ] |
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437 | 437 | ), |
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438 | 438 | per_key_traits={ |
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439 | 439 | "command": Unicode(), |
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440 | 440 | "match_keys": List(Unicode()), |
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441 | 441 | "match_filter": Unicode(), |
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442 | 442 | "new_keys": List(Unicode()), |
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443 | 443 | "new_filter": Unicode(), |
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444 | 444 | "create": Bool(False), |
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445 | 445 | }, |
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446 | 446 | ), |
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447 | 447 | help="""Add, disable or modifying shortcuts. |
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448 | 448 | |
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449 | 449 | Each entry on the list should be a dictionary with ``command`` key |
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450 | 450 | identifying the target function executed by the shortcut and at least |
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451 | 451 | one of the following: |
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452 | 452 | |
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453 | 453 | - ``match_keys``: list of keys used to match an existing shortcut, |
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454 | 454 | - ``match_filter``: shortcut filter used to match an existing shortcut, |
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455 | 455 | - ``new_keys``: list of keys to set, |
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456 | 456 | - ``new_filter``: a new shortcut filter to set |
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457 | 457 | |
|
458 | 458 | The filters have to be composed of pre-defined verbs and joined by one |
|
459 | 459 | of the following conjunctions: ``&`` (and), ``|`` (or), ``~`` (not). |
|
460 | 460 | The pre-defined verbs are: |
|
461 | 461 | |
|
462 | 462 | {} |
|
463 | 463 | |
|
464 | 464 | |
|
465 | 465 | To disable a shortcut set ``new_keys`` to an empty list. |
|
466 | 466 | To add a shortcut add key ``create`` with value ``True``. |
|
467 | 467 | |
|
468 | 468 | When modifying/disabling shortcuts, ``match_keys``/``match_filter`` can |
|
469 | 469 | be omitted if the provided specification uniquely identifies a shortcut |
|
470 | 470 | to be modified/disabled. When modifying a shortcut ``new_filter`` or |
|
471 | 471 | ``new_keys`` can be omitted which will result in reuse of the existing |
|
472 | 472 | filter/keys. |
|
473 | 473 | |
|
474 | 474 | Only shortcuts defined in IPython (and not default prompt-toolkit |
|
475 | 475 | shortcuts) can be modified or disabled. The full list of shortcuts, |
|
476 | 476 | command identifiers and filters is available under |
|
477 | 477 | :ref:`terminal-shortcuts-list`. |
|
478 | 478 | """.format( |
|
479 | 479 | "\n ".join([f"- `{k}`" for k in KEYBINDING_FILTERS]) |
|
480 | 480 | ), |
|
481 | 481 | ).tag(config=True) |
|
482 | 482 | |
|
483 | 483 | @observe("shortcuts") |
|
484 | 484 | def _shortcuts_changed(self, change): |
|
485 | 485 | if self.pt_app: |
|
486 | 486 | self.pt_app.key_bindings = self._merge_shortcuts(user_shortcuts=change.new) |
|
487 | 487 | |
|
488 | 488 | def _merge_shortcuts(self, user_shortcuts): |
|
489 | 489 | # rebuild the bindings list from scratch |
|
490 | 490 | key_bindings = create_ipython_shortcuts(self) |
|
491 | 491 | |
|
492 | 492 | # for now we only allow adding shortcuts for commands which are already |
|
493 | 493 | # registered; this is a security precaution. |
|
494 | 494 | known_commands = { |
|
495 | 495 | create_identifier(binding.command): binding.command |
|
496 | 496 | for binding in KEY_BINDINGS |
|
497 | 497 | } |
|
498 | 498 | shortcuts_to_skip = [] |
|
499 | 499 | shortcuts_to_add = [] |
|
500 | 500 | |
|
501 | 501 | for shortcut in user_shortcuts: |
|
502 | 502 | command_id = shortcut["command"] |
|
503 | 503 | if command_id not in known_commands: |
|
504 | 504 | allowed_commands = "\n - ".join(known_commands) |
|
505 | 505 | raise ValueError( |
|
506 | 506 | f"{command_id} is not a known shortcut command." |
|
507 | 507 | f" Allowed commands are: \n - {allowed_commands}" |
|
508 | 508 | ) |
|
509 | 509 | old_keys = shortcut.get("match_keys", None) |
|
510 | 510 | old_filter = ( |
|
511 | 511 | filter_from_string(shortcut["match_filter"]) |
|
512 | 512 | if "match_filter" in shortcut |
|
513 | 513 | else None |
|
514 | 514 | ) |
|
515 | 515 | matching = [ |
|
516 | 516 | binding |
|
517 | 517 | for binding in KEY_BINDINGS |
|
518 | 518 | if ( |
|
519 | 519 | (old_filter is None or binding.filter == old_filter) |
|
520 | 520 | and (old_keys is None or [k for k in binding.keys] == old_keys) |
|
521 | 521 | and create_identifier(binding.command) == command_id |
|
522 | 522 | ) |
|
523 | 523 | ] |
|
524 | 524 | |
|
525 | 525 | new_keys = shortcut.get("new_keys", None) |
|
526 | 526 | new_filter = shortcut.get("new_filter", None) |
|
527 | 527 | |
|
528 | 528 | command = known_commands[command_id] |
|
529 | 529 | |
|
530 | 530 | creating_new = shortcut.get("create", False) |
|
531 | 531 | modifying_existing = not creating_new and ( |
|
532 | 532 | new_keys is not None or new_filter |
|
533 | 533 | ) |
|
534 | 534 | |
|
535 | 535 | if creating_new and new_keys == []: |
|
536 | 536 | raise ValueError("Cannot add a shortcut without keys") |
|
537 | 537 | |
|
538 | 538 | if modifying_existing: |
|
539 | 539 | specification = { |
|
540 | 540 | key: shortcut[key] |
|
541 | 541 | for key in ["command", "filter"] |
|
542 | 542 | if key in shortcut |
|
543 | 543 | } |
|
544 | 544 | if len(matching) == 0: |
|
545 | 545 | raise ValueError( |
|
546 | 546 | f"No shortcuts matching {specification} found in {KEY_BINDINGS}" |
|
547 | 547 | ) |
|
548 | 548 | elif len(matching) > 1: |
|
549 | 549 | raise ValueError( |
|
550 | 550 | f"Multiple shortcuts matching {specification} found," |
|
551 | 551 | f" please add keys/filter to select one of: {matching}" |
|
552 | 552 | ) |
|
553 | 553 | |
|
554 | 554 | matched = matching[0] |
|
555 | 555 | old_filter = matched.filter |
|
556 | 556 | old_keys = list(matched.keys) |
|
557 | 557 | shortcuts_to_skip.append( |
|
558 | 558 | RuntimeBinding( |
|
559 | 559 | command, |
|
560 | 560 | keys=old_keys, |
|
561 | 561 | filter=old_filter, |
|
562 | 562 | ) |
|
563 | 563 | ) |
|
564 | 564 | |
|
565 | 565 | if new_keys != []: |
|
566 | 566 | shortcuts_to_add.append( |
|
567 | 567 | RuntimeBinding( |
|
568 | 568 | command, |
|
569 | 569 | keys=new_keys or old_keys, |
|
570 | 570 | filter=filter_from_string(new_filter) |
|
571 | 571 | if new_filter is not None |
|
572 | 572 | else ( |
|
573 | 573 | old_filter |
|
574 | 574 | if old_filter is not None |
|
575 | 575 | else filter_from_string("always") |
|
576 | 576 | ), |
|
577 | 577 | ) |
|
578 | 578 | ) |
|
579 | 579 | |
|
580 | 580 | # rebuild the bindings list from scratch |
|
581 | 581 | key_bindings = create_ipython_shortcuts(self, skip=shortcuts_to_skip) |
|
582 | 582 | for binding in shortcuts_to_add: |
|
583 | 583 | add_binding(key_bindings, binding) |
|
584 | 584 | |
|
585 | 585 | return key_bindings |
|
586 | 586 | |
|
587 | 587 | prompt_includes_vi_mode = Bool(True, |
|
588 | 588 | help="Display the current vi mode (when using vi editing mode)." |
|
589 | 589 | ).tag(config=True) |
|
590 | 590 | |
|
591 | prompt_line_number_format = Unicode( | |
|
592 | "", | |
|
593 | help="The format for line numbering, will be passed `line` (int, 1 based)" | |
|
594 | " the current line number and `rel_line` the relative line number." | |
|
595 | " for example to display both you can use the following template string :" | |
|
596 | " c.TerminalInteractiveShell.prompt_line_number_format='{line: 4d}/{rel_line:+03d} | '" | |
|
597 | " This will display the current line number, with leading space and a width of at least 4" | |
|
598 | " character, as well as the relative line number 0 padded and always with a + or - sign." | |
|
599 | " Note that when using Emacs mode the prompt of the first line may not update.", | |
|
600 | ).tag(config=True) | |
|
601 | ||
|
591 | 602 | @observe('term_title') |
|
592 | 603 | def init_term_title(self, change=None): |
|
593 | 604 | # Enable or disable the terminal title. |
|
594 | 605 | if self.term_title and _is_tty: |
|
595 | 606 | toggle_set_term_title(True) |
|
596 | 607 | set_term_title(self.term_title_format.format(cwd=abbrev_cwd())) |
|
597 | 608 | else: |
|
598 | 609 | toggle_set_term_title(False) |
|
599 | 610 | |
|
600 | 611 | def restore_term_title(self): |
|
601 | 612 | if self.term_title and _is_tty: |
|
602 | 613 | restore_term_title() |
|
603 | 614 | |
|
604 | 615 | def init_display_formatter(self): |
|
605 | 616 | super(TerminalInteractiveShell, self).init_display_formatter() |
|
606 | 617 | # terminal only supports plain text |
|
607 | 618 | self.display_formatter.active_types = ["text/plain"] |
|
608 | 619 | |
|
609 | 620 | def init_prompt_toolkit_cli(self): |
|
610 | 621 | if self.simple_prompt: |
|
611 | 622 | # Fall back to plain non-interactive output for tests. |
|
612 | 623 | # This is very limited. |
|
613 | 624 | def prompt(): |
|
614 | 625 | prompt_text = "".join(x[1] for x in self.prompts.in_prompt_tokens()) |
|
615 | 626 | lines = [input(prompt_text)] |
|
616 | 627 | prompt_continuation = "".join(x[1] for x in self.prompts.continuation_prompt_tokens()) |
|
617 | 628 | while self.check_complete('\n'.join(lines))[0] == 'incomplete': |
|
618 | 629 | lines.append( input(prompt_continuation) ) |
|
619 | 630 | return '\n'.join(lines) |
|
620 | 631 | self.prompt_for_code = prompt |
|
621 | 632 | return |
|
622 | 633 | |
|
623 | 634 | # Set up keyboard shortcuts |
|
624 | 635 | key_bindings = self._merge_shortcuts(user_shortcuts=self.shortcuts) |
|
625 | 636 | |
|
626 | 637 | # Pre-populate history from IPython's history database |
|
627 | 638 | history = PtkHistoryAdapter(self) |
|
628 | 639 | |
|
629 | 640 | self._style = self._make_style_from_name_or_cls(self.highlighting_style) |
|
630 | 641 | self.style = DynamicStyle(lambda: self._style) |
|
631 | 642 | |
|
632 | 643 | editing_mode = getattr(EditingMode, self.editing_mode.upper()) |
|
633 | 644 | |
|
634 | 645 | self._use_asyncio_inputhook = False |
|
635 | 646 | self.pt_app = PromptSession( |
|
636 | 647 | auto_suggest=self.auto_suggest, |
|
637 | 648 | editing_mode=editing_mode, |
|
638 | 649 | key_bindings=key_bindings, |
|
639 | 650 | history=history, |
|
640 | 651 | completer=IPythonPTCompleter(shell=self), |
|
641 | 652 | enable_history_search=self.enable_history_search, |
|
642 | 653 | style=self.style, |
|
643 | 654 | include_default_pygments_style=False, |
|
644 | 655 | mouse_support=self.mouse_support, |
|
645 | 656 | enable_open_in_editor=self.extra_open_editor_shortcuts, |
|
646 | 657 | color_depth=self.color_depth, |
|
647 | 658 | tempfile_suffix=".py", |
|
648 | 659 | **self._extra_prompt_options(), |
|
649 | 660 | ) |
|
650 | 661 | if isinstance(self.auto_suggest, NavigableAutoSuggestFromHistory): |
|
651 | 662 | self.auto_suggest.connect(self.pt_app) |
|
652 | 663 | |
|
653 | 664 | def _make_style_from_name_or_cls(self, name_or_cls): |
|
654 | 665 | """ |
|
655 | 666 | Small wrapper that make an IPython compatible style from a style name |
|
656 | 667 | |
|
657 | 668 | We need that to add style for prompt ... etc. |
|
658 | 669 | """ |
|
659 | 670 | style_overrides = {} |
|
660 | 671 | if name_or_cls == 'legacy': |
|
661 | 672 | legacy = self.colors.lower() |
|
662 | 673 | if legacy == 'linux': |
|
663 | 674 | style_cls = get_style_by_name('monokai') |
|
664 | 675 | style_overrides = _style_overrides_linux |
|
665 | 676 | elif legacy == 'lightbg': |
|
666 | 677 | style_overrides = _style_overrides_light_bg |
|
667 | 678 | style_cls = get_style_by_name('pastie') |
|
668 | 679 | elif legacy == 'neutral': |
|
669 | 680 | # The default theme needs to be visible on both a dark background |
|
670 | 681 | # and a light background, because we can't tell what the terminal |
|
671 | 682 | # looks like. These tweaks to the default theme help with that. |
|
672 | 683 | style_cls = get_style_by_name('default') |
|
673 | 684 | style_overrides.update({ |
|
674 | 685 | Token.Number: '#ansigreen', |
|
675 | 686 | Token.Operator: 'noinherit', |
|
676 | 687 | Token.String: '#ansiyellow', |
|
677 | 688 | Token.Name.Function: '#ansiblue', |
|
678 | 689 | Token.Name.Class: 'bold #ansiblue', |
|
679 | 690 | Token.Name.Namespace: 'bold #ansiblue', |
|
680 | 691 | Token.Name.Variable.Magic: '#ansiblue', |
|
681 | 692 | Token.Prompt: '#ansigreen', |
|
682 | 693 | Token.PromptNum: '#ansibrightgreen bold', |
|
683 | 694 | Token.OutPrompt: '#ansired', |
|
684 | 695 | Token.OutPromptNum: '#ansibrightred bold', |
|
685 | 696 | }) |
|
686 | 697 | |
|
687 | 698 | # Hack: Due to limited color support on the Windows console |
|
688 | 699 | # the prompt colors will be wrong without this |
|
689 | 700 | if os.name == 'nt': |
|
690 | 701 | style_overrides.update({ |
|
691 | 702 | Token.Prompt: '#ansidarkgreen', |
|
692 | 703 | Token.PromptNum: '#ansigreen bold', |
|
693 | 704 | Token.OutPrompt: '#ansidarkred', |
|
694 | 705 | Token.OutPromptNum: '#ansired bold', |
|
695 | 706 | }) |
|
696 | 707 | elif legacy =='nocolor': |
|
697 | 708 | style_cls=_NoStyle |
|
698 | 709 | style_overrides = {} |
|
699 | 710 | else : |
|
700 | 711 | raise ValueError('Got unknown colors: ', legacy) |
|
701 | 712 | else : |
|
702 | 713 | if isinstance(name_or_cls, str): |
|
703 | 714 | style_cls = get_style_by_name(name_or_cls) |
|
704 | 715 | else: |
|
705 | 716 | style_cls = name_or_cls |
|
706 | 717 | style_overrides = { |
|
707 | 718 | Token.Prompt: '#ansigreen', |
|
708 | 719 | Token.PromptNum: '#ansibrightgreen bold', |
|
709 | 720 | Token.OutPrompt: '#ansired', |
|
710 | 721 | Token.OutPromptNum: '#ansibrightred bold', |
|
711 | 722 | } |
|
712 | 723 | style_overrides.update(self.highlighting_style_overrides) |
|
713 | 724 | style = merge_styles([ |
|
714 | 725 | style_from_pygments_cls(style_cls), |
|
715 | 726 | style_from_pygments_dict(style_overrides), |
|
716 | 727 | ]) |
|
717 | 728 | |
|
718 | 729 | return style |
|
719 | 730 | |
|
720 | 731 | @property |
|
721 | 732 | def pt_complete_style(self): |
|
722 | 733 | return { |
|
723 | 734 | 'multicolumn': CompleteStyle.MULTI_COLUMN, |
|
724 | 735 | 'column': CompleteStyle.COLUMN, |
|
725 | 736 | 'readlinelike': CompleteStyle.READLINE_LIKE, |
|
726 | 737 | }[self.display_completions] |
|
727 | 738 | |
|
728 | 739 | @property |
|
729 | 740 | def color_depth(self): |
|
730 | 741 | return (ColorDepth.TRUE_COLOR if self.true_color else None) |
|
731 | 742 | |
|
732 | 743 | def _extra_prompt_options(self): |
|
733 | 744 | """ |
|
734 | 745 | Return the current layout option for the current Terminal InteractiveShell |
|
735 | 746 | """ |
|
736 | 747 | def get_message(): |
|
737 | 748 | return PygmentsTokens(self.prompts.in_prompt_tokens()) |
|
738 | 749 | |
|
739 | 750 | if self.editing_mode == 'emacs': |
|
740 | 751 | # with emacs mode the prompt is (usually) static, so we call only |
|
741 | 752 | # the function once. With VI mode it can toggle between [ins] and |
|
742 | 753 | # [nor] so we can't precompute. |
|
743 | 754 | # here I'm going to favor the default keybinding which almost |
|
744 | 755 | # everybody uses to decrease CPU usage. |
|
745 | 756 | # if we have issues with users with custom Prompts we can see how to |
|
746 | 757 | # work around this. |
|
747 | 758 | get_message = get_message() |
|
748 | 759 | |
|
749 | 760 | options = { |
|
750 | 761 | "complete_in_thread": False, |
|
751 | 762 | "lexer": IPythonPTLexer(), |
|
752 | 763 | "reserve_space_for_menu": self.space_for_menu, |
|
753 | 764 | "message": get_message, |
|
754 | 765 | "prompt_continuation": ( |
|
755 | 766 | lambda width, lineno, is_soft_wrap: PygmentsTokens( |
|
756 | 767 | self.prompts.continuation_prompt_tokens(width, lineno=lineno) |
|
757 | 768 | ) |
|
758 | 769 | ), |
|
759 | 770 | "multiline": True, |
|
760 | 771 | "complete_style": self.pt_complete_style, |
|
761 | 772 | "input_processors": [ |
|
762 | 773 | # Highlight matching brackets, but only when this setting is |
|
763 | 774 | # enabled, and only when the DEFAULT_BUFFER has the focus. |
|
764 | 775 | ConditionalProcessor( |
|
765 | 776 | processor=HighlightMatchingBracketProcessor(chars="[](){}"), |
|
766 | 777 | filter=HasFocus(DEFAULT_BUFFER) |
|
767 | 778 | & ~IsDone() |
|
768 | 779 | & Condition(lambda: self.highlight_matching_brackets), |
|
769 | 780 | ), |
|
770 | 781 | # Show auto-suggestion in lines other than the last line. |
|
771 | 782 | ConditionalProcessor( |
|
772 | 783 | processor=AppendAutoSuggestionInAnyLine(), |
|
773 | 784 | filter=HasFocus(DEFAULT_BUFFER) |
|
774 | 785 | & ~IsDone() |
|
775 | 786 | & Condition( |
|
776 | 787 | lambda: isinstance( |
|
777 | 788 | self.auto_suggest, NavigableAutoSuggestFromHistory |
|
778 | 789 | ) |
|
779 | 790 | ), |
|
780 | 791 | ), |
|
781 | 792 | ], |
|
782 | 793 | } |
|
783 | 794 | if not PTK3: |
|
784 | 795 | options['inputhook'] = self.inputhook |
|
785 | 796 | |
|
786 | 797 | return options |
|
787 | 798 | |
|
788 | 799 | def prompt_for_code(self): |
|
789 | 800 | if self.rl_next_input: |
|
790 | 801 | default = self.rl_next_input |
|
791 | 802 | self.rl_next_input = None |
|
792 | 803 | else: |
|
793 | 804 | default = '' |
|
794 | 805 | |
|
795 | 806 | # In order to make sure that asyncio code written in the |
|
796 | 807 | # interactive shell doesn't interfere with the prompt, we run the |
|
797 | 808 | # prompt in a different event loop. |
|
798 | 809 | # If we don't do this, people could spawn coroutine with a |
|
799 | 810 | # while/true inside which will freeze the prompt. |
|
800 | 811 | |
|
801 | 812 | with patch_stdout(raw=True): |
|
802 | 813 | if self._use_asyncio_inputhook: |
|
803 | 814 | # When we integrate the asyncio event loop, run the UI in the |
|
804 | 815 | # same event loop as the rest of the code. don't use an actual |
|
805 | 816 | # input hook. (Asyncio is not made for nesting event loops.) |
|
806 | 817 | asyncio_loop = get_asyncio_loop() |
|
807 | 818 | text = asyncio_loop.run_until_complete( |
|
808 | 819 | self.pt_app.prompt_async( |
|
809 | 820 | default=default, **self._extra_prompt_options() |
|
810 | 821 | ) |
|
811 | 822 | ) |
|
812 | 823 | else: |
|
813 | 824 | text = self.pt_app.prompt( |
|
814 | 825 | default=default, |
|
815 | 826 | inputhook=self._inputhook, |
|
816 | 827 | **self._extra_prompt_options(), |
|
817 | 828 | ) |
|
818 | 829 | |
|
819 | 830 | return text |
|
820 | 831 | |
|
821 | 832 | def enable_win_unicode_console(self): |
|
822 | 833 | # Since IPython 7.10 doesn't support python < 3.6 and PEP 528, Python uses the unicode APIs for the Windows |
|
823 | 834 | # console by default, so WUC shouldn't be needed. |
|
824 | 835 | warn("`enable_win_unicode_console` is deprecated since IPython 7.10, does not do anything and will be removed in the future", |
|
825 | 836 | DeprecationWarning, |
|
826 | 837 | stacklevel=2) |
|
827 | 838 | |
|
828 | 839 | def init_io(self): |
|
829 | 840 | if sys.platform not in {'win32', 'cli'}: |
|
830 | 841 | return |
|
831 | 842 | |
|
832 | 843 | import colorama |
|
833 | 844 | colorama.init() |
|
834 | 845 | |
|
835 | 846 | def init_magics(self): |
|
836 | 847 | super(TerminalInteractiveShell, self).init_magics() |
|
837 | 848 | self.register_magics(TerminalMagics) |
|
838 | 849 | |
|
839 | 850 | def init_alias(self): |
|
840 | 851 | # The parent class defines aliases that can be safely used with any |
|
841 | 852 | # frontend. |
|
842 | 853 | super(TerminalInteractiveShell, self).init_alias() |
|
843 | 854 | |
|
844 | 855 | # Now define aliases that only make sense on the terminal, because they |
|
845 | 856 | # need direct access to the console in a way that we can't emulate in |
|
846 | 857 | # GUI or web frontend |
|
847 | 858 | if os.name == 'posix': |
|
848 | 859 | for cmd in ('clear', 'more', 'less', 'man'): |
|
849 | 860 | self.alias_manager.soft_define_alias(cmd, cmd) |
|
850 | 861 | |
|
851 | 862 | |
|
852 | 863 | def __init__(self, *args, **kwargs) -> None: |
|
853 | 864 | super(TerminalInteractiveShell, self).__init__(*args, **kwargs) |
|
854 | 865 | self._set_autosuggestions(self.autosuggestions_provider) |
|
855 | 866 | self.init_prompt_toolkit_cli() |
|
856 | 867 | self.init_term_title() |
|
857 | 868 | self.keep_running = True |
|
858 | 869 | self._set_formatter(self.autoformatter) |
|
859 | 870 | |
|
860 | 871 | |
|
861 | 872 | def ask_exit(self): |
|
862 | 873 | self.keep_running = False |
|
863 | 874 | |
|
864 | 875 | rl_next_input = None |
|
865 | 876 | |
|
866 | 877 | def interact(self): |
|
867 | 878 | self.keep_running = True |
|
868 | 879 | while self.keep_running: |
|
869 | 880 | print(self.separate_in, end='') |
|
870 | 881 | |
|
871 | 882 | try: |
|
872 | 883 | code = self.prompt_for_code() |
|
873 | 884 | except EOFError: |
|
874 | 885 | if (not self.confirm_exit) \ |
|
875 | 886 | or self.ask_yes_no('Do you really want to exit ([y]/n)?','y','n'): |
|
876 | 887 | self.ask_exit() |
|
877 | 888 | |
|
878 | 889 | else: |
|
879 | 890 | if code: |
|
880 | 891 | self.run_cell(code, store_history=True) |
|
881 | 892 | |
|
882 | 893 | def mainloop(self): |
|
883 | 894 | # An extra layer of protection in case someone mashing Ctrl-C breaks |
|
884 | 895 | # out of our internal code. |
|
885 | 896 | while True: |
|
886 | 897 | try: |
|
887 | 898 | self.interact() |
|
888 | 899 | break |
|
889 | 900 | except KeyboardInterrupt as e: |
|
890 | 901 | print("\n%s escaped interact()\n" % type(e).__name__) |
|
891 | 902 | finally: |
|
892 | 903 | # An interrupt during the eventloop will mess up the |
|
893 | 904 | # internal state of the prompt_toolkit library. |
|
894 | 905 | # Stopping the eventloop fixes this, see |
|
895 | 906 | # https://github.com/ipython/ipython/pull/9867 |
|
896 | 907 | if hasattr(self, '_eventloop'): |
|
897 | 908 | self._eventloop.stop() |
|
898 | 909 | |
|
899 | 910 | self.restore_term_title() |
|
900 | 911 | |
|
901 | 912 | # try to call some at-exit operation optimistically as some things can't |
|
902 | 913 | # be done during interpreter shutdown. this is technically inaccurate as |
|
903 | 914 | # this make mainlool not re-callable, but that should be a rare if not |
|
904 | 915 | # in existent use case. |
|
905 | 916 | |
|
906 | 917 | self._atexit_once() |
|
907 | 918 | |
|
908 | 919 | |
|
909 | 920 | _inputhook = None |
|
910 | 921 | def inputhook(self, context): |
|
911 | 922 | if self._inputhook is not None: |
|
912 | 923 | self._inputhook(context) |
|
913 | 924 | |
|
914 | 925 | active_eventloop: Optional[str] = None |
|
915 | 926 | |
|
916 | 927 | def enable_gui(self, gui: Optional[str] = None) -> None: |
|
917 | 928 | if self.simple_prompt is True and gui is not None: |
|
918 | 929 | print( |
|
919 | 930 | f'Cannot install event loop hook for "{gui}" when running with `--simple-prompt`.' |
|
920 | 931 | ) |
|
921 | 932 | print( |
|
922 | 933 | "NOTE: Tk is supported natively; use Tk apps and Tk backends with `--simple-prompt`." |
|
923 | 934 | ) |
|
924 | 935 | return |
|
925 | 936 | |
|
926 | 937 | if self._inputhook is None and gui is None: |
|
927 | 938 | print("No event loop hook running.") |
|
928 | 939 | return |
|
929 | 940 | |
|
930 | 941 | if self._inputhook is not None and gui is not None: |
|
931 | 942 | newev, newinhook = get_inputhook_name_and_func(gui) |
|
932 | 943 | if self._inputhook == newinhook: |
|
933 | 944 | # same inputhook, do nothing |
|
934 | 945 | self.log.info( |
|
935 | 946 | f"Shell is already running the {self.active_eventloop} eventloop. Doing nothing" |
|
936 | 947 | ) |
|
937 | 948 | return |
|
938 | 949 | self.log.warning( |
|
939 | 950 | f"Shell is already running a different gui event loop for {self.active_eventloop}. " |
|
940 | 951 | "Call with no arguments to disable the current loop." |
|
941 | 952 | ) |
|
942 | 953 | return |
|
943 | 954 | if self._inputhook is not None and gui is None: |
|
944 | 955 | self.active_eventloop = self._inputhook = None |
|
945 | 956 | |
|
946 | 957 | if gui and (gui not in {"inline", "webagg"}): |
|
947 | 958 | # This hook runs with each cycle of the `prompt_toolkit`'s event loop. |
|
948 | 959 | self.active_eventloop, self._inputhook = get_inputhook_name_and_func(gui) |
|
949 | 960 | else: |
|
950 | 961 | self.active_eventloop = self._inputhook = None |
|
951 | 962 | |
|
952 | 963 | self._use_asyncio_inputhook = gui == "asyncio" |
|
953 | 964 | |
|
954 | 965 | # Run !system commands directly, not through pipes, so terminal programs |
|
955 | 966 | # work correctly. |
|
956 | 967 | system = InteractiveShell.system_raw |
|
957 | 968 | |
|
958 | 969 | def auto_rewrite_input(self, cmd): |
|
959 | 970 | """Overridden from the parent class to use fancy rewriting prompt""" |
|
960 | 971 | if not self.show_rewritten_input: |
|
961 | 972 | return |
|
962 | 973 | |
|
963 | 974 | tokens = self.prompts.rewrite_prompt_tokens() |
|
964 | 975 | if self.pt_app: |
|
965 | 976 | print_formatted_text(PygmentsTokens(tokens), end='', |
|
966 | 977 | style=self.pt_app.app.style) |
|
967 | 978 | print(cmd) |
|
968 | 979 | else: |
|
969 | 980 | prompt = ''.join(s for t, s in tokens) |
|
970 | 981 | print(prompt, cmd, sep='') |
|
971 | 982 | |
|
972 | 983 | _prompts_before = None |
|
973 | 984 | def switch_doctest_mode(self, mode): |
|
974 | 985 | """Switch prompts to classic for %doctest_mode""" |
|
975 | 986 | if mode: |
|
976 | 987 | self._prompts_before = self.prompts |
|
977 | 988 | self.prompts = ClassicPrompts(self) |
|
978 | 989 | elif self._prompts_before: |
|
979 | 990 | self.prompts = self._prompts_before |
|
980 | 991 | self._prompts_before = None |
|
981 | 992 | # self._update_layout() |
|
982 | 993 | |
|
983 | 994 | |
|
984 | 995 | InteractiveShellABC.register(TerminalInteractiveShell) |
|
985 | 996 | |
|
986 | 997 | if __name__ == '__main__': |
|
987 | 998 | TerminalInteractiveShell.instance().interact() |
@@ -1,113 +1,127 | |||
|
1 | 1 | """Terminal input and output prompts.""" |
|
2 | 2 | |
|
3 | 3 | from pygments.token import Token |
|
4 | 4 | import sys |
|
5 | 5 | |
|
6 | 6 | from IPython.core.displayhook import DisplayHook |
|
7 | 7 | |
|
8 | 8 | from prompt_toolkit.formatted_text import fragment_list_width, PygmentsTokens |
|
9 | 9 | from prompt_toolkit.shortcuts import print_formatted_text |
|
10 | 10 | from prompt_toolkit.enums import EditingMode |
|
11 | 11 | |
|
12 | 12 | |
|
13 | 13 | class Prompts(object): |
|
14 | 14 | def __init__(self, shell): |
|
15 | 15 | self.shell = shell |
|
16 | 16 | |
|
17 | 17 | def vi_mode(self): |
|
18 | 18 | if (getattr(self.shell.pt_app, 'editing_mode', None) == EditingMode.VI |
|
19 | 19 | and self.shell.prompt_includes_vi_mode): |
|
20 | 20 | mode = str(self.shell.pt_app.app.vi_state.input_mode) |
|
21 | 21 | if mode.startswith('InputMode.'): |
|
22 | 22 | mode = mode[10:13].lower() |
|
23 | 23 | elif mode.startswith('vi-'): |
|
24 | 24 | mode = mode[3:6] |
|
25 | 25 | return '['+mode+'] ' |
|
26 | 26 | return '' |
|
27 | 27 | |
|
28 | def current_line(self) -> int: | |
|
29 | if self.shell.pt_app is not None: | |
|
30 | return self.shell.pt_app.default_buffer.document.cursor_position_row or 0 | |
|
31 | return 0 | |
|
28 | 32 | |
|
29 | 33 | def in_prompt_tokens(self): |
|
30 | 34 | return [ |
|
31 | 35 | (Token.Prompt, self.vi_mode()), |
|
32 | (Token.Prompt, "1 | "), | |
|
36 | ( | |
|
37 | Token.Prompt, | |
|
38 | self.shell.prompt_line_number_format.format( | |
|
39 | line=1, rel_line=-self.current_line() | |
|
40 | ), | |
|
41 | ), | |
|
33 | 42 | (Token.Prompt, "In ["), |
|
34 | 43 | (Token.PromptNum, str(self.shell.execution_count)), |
|
35 | 44 | (Token.Prompt, ']: '), |
|
36 | 45 | ] |
|
37 | 46 | |
|
38 | 47 | def _width(self): |
|
39 | 48 | return fragment_list_width(self.in_prompt_tokens()) |
|
40 | 49 | |
|
41 | 50 | def continuation_prompt_tokens(self, width=None, *, lineno=None): |
|
42 | 51 | if width is None: |
|
43 | 52 | width = self._width() |
|
44 | prefix = " " * len(self.vi_mode()) + str(lineno + 1) + " | " | |
|
53 | line = lineno + 1 if lineno is not None else 0 | |
|
54 | prefix = " " * len( | |
|
55 | self.vi_mode() | |
|
56 | ) + self.shell.prompt_line_number_format.format( | |
|
57 | line=line, rel_line=line - self.current_line() - 1 | |
|
58 | ) | |
|
45 | 59 | return [ |
|
46 | 60 | ( |
|
47 | 61 | Token.Prompt, |
|
48 | 62 | prefix + (" " * (width - len(prefix) - 5)) + "...: ", |
|
49 | 63 | ), |
|
50 | 64 | ] |
|
51 | 65 | |
|
52 | 66 | def rewrite_prompt_tokens(self): |
|
53 | 67 | width = self._width() |
|
54 | 68 | return [ |
|
55 | 69 | (Token.Prompt, ('-' * (width - 2)) + '> '), |
|
56 | 70 | ] |
|
57 | 71 | |
|
58 | 72 | def out_prompt_tokens(self): |
|
59 | 73 | return [ |
|
60 | 74 | (Token.OutPrompt, 'Out['), |
|
61 | 75 | (Token.OutPromptNum, str(self.shell.execution_count)), |
|
62 | 76 | (Token.OutPrompt, ']: '), |
|
63 | 77 | ] |
|
64 | 78 | |
|
65 | 79 | class ClassicPrompts(Prompts): |
|
66 | 80 | def in_prompt_tokens(self): |
|
67 | 81 | return [ |
|
68 | 82 | (Token.Prompt, '>>> '), |
|
69 | 83 | ] |
|
70 | 84 | |
|
71 | 85 | def continuation_prompt_tokens(self, width=None): |
|
72 | 86 | return [ |
|
73 | 87 | (Token.Prompt, '... ') |
|
74 | 88 | ] |
|
75 | 89 | |
|
76 | 90 | def rewrite_prompt_tokens(self): |
|
77 | 91 | return [] |
|
78 | 92 | |
|
79 | 93 | def out_prompt_tokens(self): |
|
80 | 94 | return [] |
|
81 | 95 | |
|
82 | 96 | class RichPromptDisplayHook(DisplayHook): |
|
83 | 97 | """Subclass of base display hook using coloured prompt""" |
|
84 | 98 | def write_output_prompt(self): |
|
85 | 99 | sys.stdout.write(self.shell.separate_out) |
|
86 | 100 | # If we're not displaying a prompt, it effectively ends with a newline, |
|
87 | 101 | # because the output will be left-aligned. |
|
88 | 102 | self.prompt_end_newline = True |
|
89 | 103 | |
|
90 | 104 | if self.do_full_cache: |
|
91 | 105 | tokens = self.shell.prompts.out_prompt_tokens() |
|
92 | 106 | prompt_txt = ''.join(s for t, s in tokens) |
|
93 | 107 | if prompt_txt and not prompt_txt.endswith('\n'): |
|
94 | 108 | # Ask for a newline before multiline output |
|
95 | 109 | self.prompt_end_newline = False |
|
96 | 110 | |
|
97 | 111 | if self.shell.pt_app: |
|
98 | 112 | print_formatted_text(PygmentsTokens(tokens), |
|
99 | 113 | style=self.shell.pt_app.app.style, end='', |
|
100 | 114 | ) |
|
101 | 115 | else: |
|
102 | 116 | sys.stdout.write(prompt_txt) |
|
103 | 117 | |
|
104 | 118 | def write_format_data(self, format_dict, md_dict=None) -> None: |
|
105 | 119 | if self.shell.mime_renderers: |
|
106 | 120 | |
|
107 | 121 | for mime, handler in self.shell.mime_renderers.items(): |
|
108 | 122 | if mime in format_dict: |
|
109 | 123 | handler(format_dict[mime], None) |
|
110 | 124 | return |
|
111 | 125 | |
|
112 | 126 | super().write_format_data(format_dict, md_dict) |
|
113 | 127 |
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