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1 | # encoding: utf-8 |
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1 | # encoding: utf-8 | |
2 | """ |
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2 | """ | |
3 | Prefiltering components. |
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3 | Prefiltering components. | |
4 |
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4 | |||
5 | Prefilters transform user input before it is exec'd by Python. These |
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5 | Prefilters transform user input before it is exec'd by Python. These | |
6 | transforms are used to implement additional syntax such as !ls and %magic. |
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6 | transforms are used to implement additional syntax such as !ls and %magic. | |
7 |
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7 | |||
8 | Authors: |
|
8 | Authors: | |
9 |
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9 | |||
10 | * Brian Granger |
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10 | * Brian Granger | |
11 | * Fernando Perez |
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11 | * Fernando Perez | |
12 | * Dan Milstein |
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12 | * Dan Milstein | |
13 | * Ville Vainio |
|
13 | * Ville Vainio | |
14 | """ |
|
14 | """ | |
15 |
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15 | |||
16 | #----------------------------------------------------------------------------- |
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16 | #----------------------------------------------------------------------------- | |
17 | # Copyright (C) 2008-2011 The IPython Development Team |
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17 | # Copyright (C) 2008-2011 The IPython Development Team | |
18 | # |
|
18 | # | |
19 | # Distributed under the terms of the BSD License. The full license is in |
|
19 | # Distributed under the terms of the BSD License. The full license is in | |
20 | # the file COPYING, distributed as part of this software. |
|
20 | # the file COPYING, distributed as part of this software. | |
21 | #----------------------------------------------------------------------------- |
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21 | #----------------------------------------------------------------------------- | |
22 |
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22 | |||
23 | #----------------------------------------------------------------------------- |
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23 | #----------------------------------------------------------------------------- | |
24 | # Imports |
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24 | # Imports | |
25 | #----------------------------------------------------------------------------- |
|
25 | #----------------------------------------------------------------------------- | |
26 |
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26 | |||
27 | from keyword import iskeyword |
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27 | from keyword import iskeyword | |
28 | import re |
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28 | import re | |
29 |
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29 | |||
30 | from IPython.core.autocall import IPyAutocall |
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30 | from IPython.core.autocall import IPyAutocall | |
31 | from traitlets.config.configurable import Configurable |
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31 | from traitlets.config.configurable import Configurable | |
32 | from IPython.core.inputsplitter import ( |
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32 | from IPython.core.inputsplitter import ( | |
33 | ESC_MAGIC, |
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33 | ESC_MAGIC, | |
34 | ESC_QUOTE, |
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34 | ESC_QUOTE, | |
35 | ESC_QUOTE2, |
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35 | ESC_QUOTE2, | |
36 | ESC_PAREN, |
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36 | ESC_PAREN, | |
37 | ) |
|
37 | ) | |
38 | from IPython.core.macro import Macro |
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38 | from IPython.core.macro import Macro | |
39 | from IPython.core.splitinput import LineInfo |
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39 | from IPython.core.splitinput import LineInfo | |
40 |
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40 | |||
41 | from traitlets import ( |
|
41 | from traitlets import ( | |
42 | List, Integer, Unicode, CBool, Bool, Instance, CRegExp |
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42 | List, Integer, Unicode, CBool, Bool, Instance, CRegExp | |
43 | ) |
|
43 | ) | |
44 |
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44 | |||
45 | #----------------------------------------------------------------------------- |
|
45 | #----------------------------------------------------------------------------- | |
46 | # Global utilities, errors and constants |
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46 | # Global utilities, errors and constants | |
47 | #----------------------------------------------------------------------------- |
|
47 | #----------------------------------------------------------------------------- | |
48 |
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48 | |||
49 |
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49 | |||
50 | class PrefilterError(Exception): |
|
50 | class PrefilterError(Exception): | |
51 | pass |
|
51 | pass | |
52 |
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52 | |||
53 |
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53 | |||
54 | # RegExp to identify potential function names |
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54 | # RegExp to identify potential function names | |
55 | re_fun_name = re.compile(r'[a-zA-Z_]([a-zA-Z0-9_.]*) *$') |
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55 | re_fun_name = re.compile(r'[a-zA-Z_]([a-zA-Z0-9_.]*) *$') | |
56 |
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56 | |||
57 | # RegExp to exclude strings with this start from autocalling. In |
|
57 | # RegExp to exclude strings with this start from autocalling. In | |
58 | # particular, all binary operators should be excluded, so that if foo is |
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58 | # particular, all binary operators should be excluded, so that if foo is | |
59 | # callable, foo OP bar doesn't become foo(OP bar), which is invalid. The |
|
59 | # callable, foo OP bar doesn't become foo(OP bar), which is invalid. The | |
60 | # characters '!=()' don't need to be checked for, as the checkPythonChars |
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60 | # characters '!=()' don't need to be checked for, as the checkPythonChars | |
61 | # routine explicitely does so, to catch direct calls and rebindings of |
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61 | # routine explicitely does so, to catch direct calls and rebindings of | |
62 | # existing names. |
|
62 | # existing names. | |
63 |
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63 | |||
64 | # Warning: the '-' HAS TO BE AT THE END of the first group, otherwise |
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64 | # Warning: the '-' HAS TO BE AT THE END of the first group, otherwise | |
65 | # it affects the rest of the group in square brackets. |
|
65 | # it affects the rest of the group in square brackets. | |
66 | re_exclude_auto = re.compile(r'^[,&^\|\*/\+-]' |
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66 | re_exclude_auto = re.compile(r'^[,&^\|\*/\+-]' | |
67 | r'|^is |^not |^in |^and |^or ') |
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67 | r'|^is |^not |^in |^and |^or ') | |
68 |
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68 | |||
69 | # try to catch also methods for stuff in lists/tuples/dicts: off |
|
69 | # try to catch also methods for stuff in lists/tuples/dicts: off | |
70 | # (experimental). For this to work, the line_split regexp would need |
|
70 | # (experimental). For this to work, the line_split regexp would need | |
71 | # to be modified so it wouldn't break things at '['. That line is |
|
71 | # to be modified so it wouldn't break things at '['. That line is | |
72 | # nasty enough that I shouldn't change it until I can test it _well_. |
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72 | # nasty enough that I shouldn't change it until I can test it _well_. | |
73 | #self.re_fun_name = re.compile (r'[a-zA-Z_]([a-zA-Z0-9_.\[\]]*) ?$') |
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73 | #self.re_fun_name = re.compile (r'[a-zA-Z_]([a-zA-Z0-9_.\[\]]*) ?$') | |
74 |
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74 | |||
75 |
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75 | |||
76 | # Handler Check Utilities |
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76 | # Handler Check Utilities | |
77 | def is_shadowed(identifier, ip): |
|
77 | def is_shadowed(identifier, ip): | |
78 | """Is the given identifier defined in one of the namespaces which shadow |
|
78 | """Is the given identifier defined in one of the namespaces which shadow | |
79 | the alias and magic namespaces? Note that an identifier is different |
|
79 | the alias and magic namespaces? Note that an identifier is different | |
80 | than ifun, because it can not contain a '.' character.""" |
|
80 | than ifun, because it can not contain a '.' character.""" | |
81 | # This is much safer than calling ofind, which can change state |
|
81 | # This is much safer than calling ofind, which can change state | |
82 | return (identifier in ip.user_ns \ |
|
82 | return (identifier in ip.user_ns \ | |
83 | or identifier in ip.user_global_ns \ |
|
83 | or identifier in ip.user_global_ns \ | |
84 | or identifier in ip.ns_table['builtin']\ |
|
84 | or identifier in ip.ns_table['builtin']\ | |
85 | or iskeyword(identifier)) |
|
85 | or iskeyword(identifier)) | |
86 |
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86 | |||
87 |
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87 | |||
88 | #----------------------------------------------------------------------------- |
|
88 | #----------------------------------------------------------------------------- | |
89 | # Main Prefilter manager |
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89 | # Main Prefilter manager | |
90 | #----------------------------------------------------------------------------- |
|
90 | #----------------------------------------------------------------------------- | |
91 |
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91 | |||
92 |
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92 | |||
93 | class PrefilterManager(Configurable): |
|
93 | class PrefilterManager(Configurable): | |
94 | """Main prefilter component. |
|
94 | """Main prefilter component. | |
95 |
|
95 | |||
96 | The IPython prefilter is run on all user input before it is run. The |
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96 | The IPython prefilter is run on all user input before it is run. The | |
97 | prefilter consumes lines of input and produces transformed lines of |
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97 | prefilter consumes lines of input and produces transformed lines of | |
98 | input. |
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98 | input. | |
99 |
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99 | |||
100 | The iplementation consists of two phases: |
|
100 | The iplementation consists of two phases: | |
101 |
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101 | |||
102 | 1. Transformers |
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102 | 1. Transformers | |
103 | 2. Checkers and handlers |
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103 | 2. Checkers and handlers | |
104 |
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104 | |||
105 | Over time, we plan on deprecating the checkers and handlers and doing |
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105 | Over time, we plan on deprecating the checkers and handlers and doing | |
106 | everything in the transformers. |
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106 | everything in the transformers. | |
107 |
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107 | |||
108 | The transformers are instances of :class:`PrefilterTransformer` and have |
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108 | The transformers are instances of :class:`PrefilterTransformer` and have | |
109 | a single method :meth:`transform` that takes a line and returns a |
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109 | a single method :meth:`transform` that takes a line and returns a | |
110 | transformed line. The transformation can be accomplished using any |
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110 | transformed line. The transformation can be accomplished using any | |
111 | tool, but our current ones use regular expressions for speed. |
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111 | tool, but our current ones use regular expressions for speed. | |
112 |
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112 | |||
113 | After all the transformers have been run, the line is fed to the checkers, |
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113 | After all the transformers have been run, the line is fed to the checkers, | |
114 | which are instances of :class:`PrefilterChecker`. The line is passed to |
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114 | which are instances of :class:`PrefilterChecker`. The line is passed to | |
115 | the :meth:`check` method, which either returns `None` or a |
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115 | the :meth:`check` method, which either returns `None` or a | |
116 | :class:`PrefilterHandler` instance. If `None` is returned, the other |
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116 | :class:`PrefilterHandler` instance. If `None` is returned, the other | |
117 | checkers are tried. If an :class:`PrefilterHandler` instance is returned, |
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117 | checkers are tried. If an :class:`PrefilterHandler` instance is returned, | |
118 | the line is passed to the :meth:`handle` method of the returned |
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118 | the line is passed to the :meth:`handle` method of the returned | |
119 | handler and no further checkers are tried. |
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119 | handler and no further checkers are tried. | |
120 |
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120 | |||
121 | Both transformers and checkers have a `priority` attribute, that determines |
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121 | Both transformers and checkers have a `priority` attribute, that determines | |
122 | the order in which they are called. Smaller priorities are tried first. |
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122 | the order in which they are called. Smaller priorities are tried first. | |
123 |
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123 | |||
124 | Both transformers and checkers also have `enabled` attribute, which is |
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124 | Both transformers and checkers also have `enabled` attribute, which is | |
125 | a boolean that determines if the instance is used. |
|
125 | a boolean that determines if the instance is used. | |
126 |
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126 | |||
127 | Users or developers can change the priority or enabled attribute of |
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127 | Users or developers can change the priority or enabled attribute of | |
128 | transformers or checkers, but they must call the :meth:`sort_checkers` |
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128 | transformers or checkers, but they must call the :meth:`sort_checkers` | |
129 | or :meth:`sort_transformers` method after changing the priority. |
|
129 | or :meth:`sort_transformers` method after changing the priority. | |
130 | """ |
|
130 | """ | |
131 |
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131 | |||
132 | multi_line_specials = CBool(True).tag(config=True) |
|
132 | multi_line_specials = CBool(True).tag(config=True) | |
133 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True) |
|
133 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True) | |
134 |
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134 | |||
135 | def __init__(self, shell=None, **kwargs): |
|
135 | def __init__(self, shell=None, **kwargs): | |
136 | super(PrefilterManager, self).__init__(shell=shell, **kwargs) |
|
136 | super(PrefilterManager, self).__init__(shell=shell, **kwargs) | |
137 | self.shell = shell |
|
137 | self.shell = shell | |
138 | self.init_transformers() |
|
138 | self.init_transformers() | |
139 | self.init_handlers() |
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139 | self.init_handlers() | |
140 | self.init_checkers() |
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140 | self.init_checkers() | |
141 |
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141 | |||
142 | #------------------------------------------------------------------------- |
|
142 | #------------------------------------------------------------------------- | |
143 | # API for managing transformers |
|
143 | # API for managing transformers | |
144 | #------------------------------------------------------------------------- |
|
144 | #------------------------------------------------------------------------- | |
145 |
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145 | |||
146 | def init_transformers(self): |
|
146 | def init_transformers(self): | |
147 | """Create the default transformers.""" |
|
147 | """Create the default transformers.""" | |
148 | self._transformers = [] |
|
148 | self._transformers = [] | |
149 | for transformer_cls in _default_transformers: |
|
149 | for transformer_cls in _default_transformers: | |
150 | transformer_cls( |
|
150 | transformer_cls( | |
151 | shell=self.shell, prefilter_manager=self, parent=self |
|
151 | shell=self.shell, prefilter_manager=self, parent=self | |
152 | ) |
|
152 | ) | |
153 |
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153 | |||
154 | def sort_transformers(self): |
|
154 | def sort_transformers(self): | |
155 | """Sort the transformers by priority. |
|
155 | """Sort the transformers by priority. | |
156 |
|
156 | |||
157 | This must be called after the priority of a transformer is changed. |
|
157 | This must be called after the priority of a transformer is changed. | |
158 | The :meth:`register_transformer` method calls this automatically. |
|
158 | The :meth:`register_transformer` method calls this automatically. | |
159 | """ |
|
159 | """ | |
160 | self._transformers.sort(key=lambda x: x.priority) |
|
160 | self._transformers.sort(key=lambda x: x.priority) | |
161 |
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161 | |||
162 | @property |
|
162 | @property | |
163 | def transformers(self): |
|
163 | def transformers(self): | |
164 | """Return a list of checkers, sorted by priority.""" |
|
164 | """Return a list of checkers, sorted by priority.""" | |
165 | return self._transformers |
|
165 | return self._transformers | |
166 |
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166 | |||
167 | def register_transformer(self, transformer): |
|
167 | def register_transformer(self, transformer): | |
168 | """Register a transformer instance.""" |
|
168 | """Register a transformer instance.""" | |
169 | if transformer not in self._transformers: |
|
169 | if transformer not in self._transformers: | |
170 | self._transformers.append(transformer) |
|
170 | self._transformers.append(transformer) | |
171 | self.sort_transformers() |
|
171 | self.sort_transformers() | |
172 |
|
172 | |||
173 | def unregister_transformer(self, transformer): |
|
173 | def unregister_transformer(self, transformer): | |
174 | """Unregister a transformer instance.""" |
|
174 | """Unregister a transformer instance.""" | |
175 | if transformer in self._transformers: |
|
175 | if transformer in self._transformers: | |
176 | self._transformers.remove(transformer) |
|
176 | self._transformers.remove(transformer) | |
177 |
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177 | |||
178 | #------------------------------------------------------------------------- |
|
178 | #------------------------------------------------------------------------- | |
179 | # API for managing checkers |
|
179 | # API for managing checkers | |
180 | #------------------------------------------------------------------------- |
|
180 | #------------------------------------------------------------------------- | |
181 |
|
181 | |||
182 | def init_checkers(self): |
|
182 | def init_checkers(self): | |
183 | """Create the default checkers.""" |
|
183 | """Create the default checkers.""" | |
184 | self._checkers = [] |
|
184 | self._checkers = [] | |
185 | for checker in _default_checkers: |
|
185 | for checker in _default_checkers: | |
186 | checker( |
|
186 | checker( | |
187 | shell=self.shell, prefilter_manager=self, parent=self |
|
187 | shell=self.shell, prefilter_manager=self, parent=self | |
188 | ) |
|
188 | ) | |
189 |
|
189 | |||
190 | def sort_checkers(self): |
|
190 | def sort_checkers(self): | |
191 | """Sort the checkers by priority. |
|
191 | """Sort the checkers by priority. | |
192 |
|
192 | |||
193 | This must be called after the priority of a checker is changed. |
|
193 | This must be called after the priority of a checker is changed. | |
194 | The :meth:`register_checker` method calls this automatically. |
|
194 | The :meth:`register_checker` method calls this automatically. | |
195 | """ |
|
195 | """ | |
196 | self._checkers.sort(key=lambda x: x.priority) |
|
196 | self._checkers.sort(key=lambda x: x.priority) | |
197 |
|
197 | |||
198 | @property |
|
198 | @property | |
199 | def checkers(self): |
|
199 | def checkers(self): | |
200 | """Return a list of checkers, sorted by priority.""" |
|
200 | """Return a list of checkers, sorted by priority.""" | |
201 | return self._checkers |
|
201 | return self._checkers | |
202 |
|
202 | |||
203 | def register_checker(self, checker): |
|
203 | def register_checker(self, checker): | |
204 | """Register a checker instance.""" |
|
204 | """Register a checker instance.""" | |
205 | if checker not in self._checkers: |
|
205 | if checker not in self._checkers: | |
206 | self._checkers.append(checker) |
|
206 | self._checkers.append(checker) | |
207 | self.sort_checkers() |
|
207 | self.sort_checkers() | |
208 |
|
208 | |||
209 | def unregister_checker(self, checker): |
|
209 | def unregister_checker(self, checker): | |
210 | """Unregister a checker instance.""" |
|
210 | """Unregister a checker instance.""" | |
211 | if checker in self._checkers: |
|
211 | if checker in self._checkers: | |
212 | self._checkers.remove(checker) |
|
212 | self._checkers.remove(checker) | |
213 |
|
213 | |||
214 | #------------------------------------------------------------------------- |
|
214 | #------------------------------------------------------------------------- | |
215 | # API for managing handlers |
|
215 | # API for managing handlers | |
216 | #------------------------------------------------------------------------- |
|
216 | #------------------------------------------------------------------------- | |
217 |
|
217 | |||
218 | def init_handlers(self): |
|
218 | def init_handlers(self): | |
219 | """Create the default handlers.""" |
|
219 | """Create the default handlers.""" | |
220 | self._handlers = {} |
|
220 | self._handlers = {} | |
221 | self._esc_handlers = {} |
|
221 | self._esc_handlers = {} | |
222 | for handler in _default_handlers: |
|
222 | for handler in _default_handlers: | |
223 | handler( |
|
223 | handler( | |
224 | shell=self.shell, prefilter_manager=self, parent=self |
|
224 | shell=self.shell, prefilter_manager=self, parent=self | |
225 | ) |
|
225 | ) | |
226 |
|
226 | |||
227 | @property |
|
227 | @property | |
228 | def handlers(self): |
|
228 | def handlers(self): | |
229 | """Return a dict of all the handlers.""" |
|
229 | """Return a dict of all the handlers.""" | |
230 | return self._handlers |
|
230 | return self._handlers | |
231 |
|
231 | |||
232 | def register_handler(self, name, handler, esc_strings): |
|
232 | def register_handler(self, name, handler, esc_strings): | |
233 | """Register a handler instance by name with esc_strings.""" |
|
233 | """Register a handler instance by name with esc_strings.""" | |
234 | self._handlers[name] = handler |
|
234 | self._handlers[name] = handler | |
235 | for esc_str in esc_strings: |
|
235 | for esc_str in esc_strings: | |
236 | self._esc_handlers[esc_str] = handler |
|
236 | self._esc_handlers[esc_str] = handler | |
237 |
|
237 | |||
238 | def unregister_handler(self, name, handler, esc_strings): |
|
238 | def unregister_handler(self, name, handler, esc_strings): | |
239 | """Unregister a handler instance by name with esc_strings.""" |
|
239 | """Unregister a handler instance by name with esc_strings.""" | |
240 | try: |
|
240 | try: | |
241 | del self._handlers[name] |
|
241 | del self._handlers[name] | |
242 | except KeyError: |
|
242 | except KeyError: | |
243 | pass |
|
243 | pass | |
244 | for esc_str in esc_strings: |
|
244 | for esc_str in esc_strings: | |
245 | h = self._esc_handlers.get(esc_str) |
|
245 | h = self._esc_handlers.get(esc_str) | |
246 | if h is handler: |
|
246 | if h is handler: | |
247 | del self._esc_handlers[esc_str] |
|
247 | del self._esc_handlers[esc_str] | |
248 |
|
248 | |||
249 | def get_handler_by_name(self, name): |
|
249 | def get_handler_by_name(self, name): | |
250 | """Get a handler by its name.""" |
|
250 | """Get a handler by its name.""" | |
251 | return self._handlers.get(name) |
|
251 | return self._handlers.get(name) | |
252 |
|
252 | |||
253 | def get_handler_by_esc(self, esc_str): |
|
253 | def get_handler_by_esc(self, esc_str): | |
254 | """Get a handler by its escape string.""" |
|
254 | """Get a handler by its escape string.""" | |
255 | return self._esc_handlers.get(esc_str) |
|
255 | return self._esc_handlers.get(esc_str) | |
256 |
|
256 | |||
257 | #------------------------------------------------------------------------- |
|
257 | #------------------------------------------------------------------------- | |
258 | # Main prefiltering API |
|
258 | # Main prefiltering API | |
259 | #------------------------------------------------------------------------- |
|
259 | #------------------------------------------------------------------------- | |
260 |
|
260 | |||
261 | def prefilter_line_info(self, line_info): |
|
261 | def prefilter_line_info(self, line_info): | |
262 | """Prefilter a line that has been converted to a LineInfo object. |
|
262 | """Prefilter a line that has been converted to a LineInfo object. | |
263 |
|
263 | |||
264 | This implements the checker/handler part of the prefilter pipe. |
|
264 | This implements the checker/handler part of the prefilter pipe. | |
265 | """ |
|
265 | """ | |
266 | # print "prefilter_line_info: ", line_info |
|
266 | # print "prefilter_line_info: ", line_info | |
267 | handler = self.find_handler(line_info) |
|
267 | handler = self.find_handler(line_info) | |
268 | return handler.handle(line_info) |
|
268 | return handler.handle(line_info) | |
269 |
|
269 | |||
270 | def find_handler(self, line_info): |
|
270 | def find_handler(self, line_info): | |
271 | """Find a handler for the line_info by trying checkers.""" |
|
271 | """Find a handler for the line_info by trying checkers.""" | |
272 | for checker in self.checkers: |
|
272 | for checker in self.checkers: | |
273 | if checker.enabled: |
|
273 | if checker.enabled: | |
274 | handler = checker.check(line_info) |
|
274 | handler = checker.check(line_info) | |
275 | if handler: |
|
275 | if handler: | |
276 | return handler |
|
276 | return handler | |
277 | return self.get_handler_by_name('normal') |
|
277 | return self.get_handler_by_name('normal') | |
278 |
|
278 | |||
279 | def transform_line(self, line, continue_prompt): |
|
279 | def transform_line(self, line, continue_prompt): | |
280 | """Calls the enabled transformers in order of increasing priority.""" |
|
280 | """Calls the enabled transformers in order of increasing priority.""" | |
281 | for transformer in self.transformers: |
|
281 | for transformer in self.transformers: | |
282 | if transformer.enabled: |
|
282 | if transformer.enabled: | |
283 | line = transformer.transform(line, continue_prompt) |
|
283 | line = transformer.transform(line, continue_prompt) | |
284 | return line |
|
284 | return line | |
285 |
|
285 | |||
286 | def prefilter_line(self, line, continue_prompt=False): |
|
286 | def prefilter_line(self, line, continue_prompt=False): | |
287 | """Prefilter a single input line as text. |
|
287 | """Prefilter a single input line as text. | |
288 |
|
288 | |||
289 | This method prefilters a single line of text by calling the |
|
289 | This method prefilters a single line of text by calling the | |
290 | transformers and then the checkers/handlers. |
|
290 | transformers and then the checkers/handlers. | |
291 | """ |
|
291 | """ | |
292 |
|
292 | |||
293 | # print "prefilter_line: ", line, continue_prompt |
|
293 | # print "prefilter_line: ", line, continue_prompt | |
294 | # All handlers *must* return a value, even if it's blank (''). |
|
294 | # All handlers *must* return a value, even if it's blank (''). | |
295 |
|
295 | |||
296 | # save the line away in case we crash, so the post-mortem handler can |
|
296 | # save the line away in case we crash, so the post-mortem handler can | |
297 | # record it |
|
297 | # record it | |
298 | self.shell._last_input_line = line |
|
298 | self.shell._last_input_line = line | |
299 |
|
299 | |||
300 | if not line: |
|
300 | if not line: | |
301 | # Return immediately on purely empty lines, so that if the user |
|
301 | # Return immediately on purely empty lines, so that if the user | |
302 | # previously typed some whitespace that started a continuation |
|
302 | # previously typed some whitespace that started a continuation | |
303 | # prompt, he can break out of that loop with just an empty line. |
|
303 | # prompt, he can break out of that loop with just an empty line. | |
304 | # This is how the default python prompt works. |
|
304 | # This is how the default python prompt works. | |
305 | return '' |
|
305 | return '' | |
306 |
|
306 | |||
307 | # At this point, we invoke our transformers. |
|
307 | # At this point, we invoke our transformers. | |
308 | if not continue_prompt or (continue_prompt and self.multi_line_specials): |
|
308 | if not continue_prompt or (continue_prompt and self.multi_line_specials): | |
309 | line = self.transform_line(line, continue_prompt) |
|
309 | line = self.transform_line(line, continue_prompt) | |
310 |
|
310 | |||
311 | # Now we compute line_info for the checkers and handlers |
|
311 | # Now we compute line_info for the checkers and handlers | |
312 | line_info = LineInfo(line, continue_prompt) |
|
312 | line_info = LineInfo(line, continue_prompt) | |
313 |
|
313 | |||
314 | # the input history needs to track even empty lines |
|
314 | # the input history needs to track even empty lines | |
315 | stripped = line.strip() |
|
315 | stripped = line.strip() | |
316 |
|
316 | |||
317 | normal_handler = self.get_handler_by_name('normal') |
|
317 | normal_handler = self.get_handler_by_name('normal') | |
318 | if not stripped: |
|
318 | if not stripped: | |
319 | return normal_handler.handle(line_info) |
|
319 | return normal_handler.handle(line_info) | |
320 |
|
320 | |||
321 | # special handlers are only allowed for single line statements |
|
321 | # special handlers are only allowed for single line statements | |
322 | if continue_prompt and not self.multi_line_specials: |
|
322 | if continue_prompt and not self.multi_line_specials: | |
323 | return normal_handler.handle(line_info) |
|
323 | return normal_handler.handle(line_info) | |
324 |
|
324 | |||
325 | prefiltered = self.prefilter_line_info(line_info) |
|
325 | prefiltered = self.prefilter_line_info(line_info) | |
326 | # print "prefiltered line: %r" % prefiltered |
|
326 | # print "prefiltered line: %r" % prefiltered | |
327 | return prefiltered |
|
327 | return prefiltered | |
328 |
|
328 | |||
329 | def prefilter_lines(self, lines, continue_prompt=False): |
|
329 | def prefilter_lines(self, lines, continue_prompt=False): | |
330 | """Prefilter multiple input lines of text. |
|
330 | """Prefilter multiple input lines of text. | |
331 |
|
331 | |||
332 | This is the main entry point for prefiltering multiple lines of |
|
332 | This is the main entry point for prefiltering multiple lines of | |
333 | input. This simply calls :meth:`prefilter_line` for each line of |
|
333 | input. This simply calls :meth:`prefilter_line` for each line of | |
334 | input. |
|
334 | input. | |
335 |
|
335 | |||
336 | This covers cases where there are multiple lines in the user entry, |
|
336 | This covers cases where there are multiple lines in the user entry, | |
337 | which is the case when the user goes back to a multiline history |
|
337 | which is the case when the user goes back to a multiline history | |
338 | entry and presses enter. |
|
338 | entry and presses enter. | |
339 | """ |
|
339 | """ | |
340 | llines = lines.rstrip('\n').split('\n') |
|
340 | llines = lines.rstrip('\n').split('\n') | |
341 | # We can get multiple lines in one shot, where multiline input 'blends' |
|
341 | # We can get multiple lines in one shot, where multiline input 'blends' | |
342 | # into one line, in cases like recalling from the readline history |
|
342 | # into one line, in cases like recalling from the readline history | |
343 | # buffer. We need to make sure that in such cases, we correctly |
|
343 | # buffer. We need to make sure that in such cases, we correctly | |
344 | # communicate downstream which line is first and which are continuation |
|
344 | # communicate downstream which line is first and which are continuation | |
345 | # ones. |
|
345 | # ones. | |
346 | if len(llines) > 1: |
|
346 | if len(llines) > 1: | |
347 | out = '\n'.join([self.prefilter_line(line, lnum>0) |
|
347 | out = '\n'.join([self.prefilter_line(line, lnum>0) | |
348 | for lnum, line in enumerate(llines) ]) |
|
348 | for lnum, line in enumerate(llines) ]) | |
349 | else: |
|
349 | else: | |
350 | out = self.prefilter_line(llines[0], continue_prompt) |
|
350 | out = self.prefilter_line(llines[0], continue_prompt) | |
351 |
|
351 | |||
352 | return out |
|
352 | return out | |
353 |
|
353 | |||
354 | #----------------------------------------------------------------------------- |
|
354 | #----------------------------------------------------------------------------- | |
355 | # Prefilter transformers |
|
355 | # Prefilter transformers | |
356 | #----------------------------------------------------------------------------- |
|
356 | #----------------------------------------------------------------------------- | |
357 |
|
357 | |||
358 |
|
358 | |||
359 | class PrefilterTransformer(Configurable): |
|
359 | class PrefilterTransformer(Configurable): | |
360 | """Transform a line of user input.""" |
|
360 | """Transform a line of user input.""" | |
361 |
|
361 | |||
362 | priority = Integer(100).tag(config=True) |
|
362 | priority = Integer(100).tag(config=True) | |
363 | # Transformers don't currently use shell or prefilter_manager, but as we |
|
363 | # Transformers don't currently use shell or prefilter_manager, but as we | |
364 | # move away from checkers and handlers, they will need them. |
|
364 | # move away from checkers and handlers, they will need them. | |
365 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True) |
|
365 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True) | |
366 | prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager', allow_none=True) |
|
366 | prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager', allow_none=True) | |
367 | enabled = Bool(True).tag(config=True) |
|
367 | enabled = Bool(True).tag(config=True) | |
368 |
|
368 | |||
369 | def __init__(self, shell=None, prefilter_manager=None, **kwargs): |
|
369 | def __init__(self, shell=None, prefilter_manager=None, **kwargs): | |
370 | super(PrefilterTransformer, self).__init__( |
|
370 | super(PrefilterTransformer, self).__init__( | |
371 | shell=shell, prefilter_manager=prefilter_manager, **kwargs |
|
371 | shell=shell, prefilter_manager=prefilter_manager, **kwargs | |
372 | ) |
|
372 | ) | |
373 | self.prefilter_manager.register_transformer(self) |
|
373 | self.prefilter_manager.register_transformer(self) | |
374 |
|
374 | |||
375 | def transform(self, line, continue_prompt): |
|
375 | def transform(self, line, continue_prompt): | |
376 | """Transform a line, returning the new one.""" |
|
376 | """Transform a line, returning the new one.""" | |
377 | return None |
|
377 | return None | |
378 |
|
378 | |||
379 | def __repr__(self): |
|
379 | def __repr__(self): | |
380 | return "<%s(priority=%r, enabled=%r)>" % ( |
|
380 | return "<%s(priority=%r, enabled=%r)>" % ( | |
381 | self.__class__.__name__, self.priority, self.enabled) |
|
381 | self.__class__.__name__, self.priority, self.enabled) | |
382 |
|
382 | |||
383 |
|
383 | |||
384 | #----------------------------------------------------------------------------- |
|
384 | #----------------------------------------------------------------------------- | |
385 | # Prefilter checkers |
|
385 | # Prefilter checkers | |
386 | #----------------------------------------------------------------------------- |
|
386 | #----------------------------------------------------------------------------- | |
387 |
|
387 | |||
388 |
|
388 | |||
389 | class PrefilterChecker(Configurable): |
|
389 | class PrefilterChecker(Configurable): | |
390 | """Inspect an input line and return a handler for that line.""" |
|
390 | """Inspect an input line and return a handler for that line.""" | |
391 |
|
391 | |||
392 | priority = Integer(100).tag(config=True) |
|
392 | priority = Integer(100).tag(config=True) | |
393 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True) |
|
393 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True) | |
394 | prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager', allow_none=True) |
|
394 | prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager', allow_none=True) | |
395 | enabled = Bool(True).tag(config=True) |
|
395 | enabled = Bool(True).tag(config=True) | |
396 |
|
396 | |||
397 | def __init__(self, shell=None, prefilter_manager=None, **kwargs): |
|
397 | def __init__(self, shell=None, prefilter_manager=None, **kwargs): | |
398 | super(PrefilterChecker, self).__init__( |
|
398 | super(PrefilterChecker, self).__init__( | |
399 | shell=shell, prefilter_manager=prefilter_manager, **kwargs |
|
399 | shell=shell, prefilter_manager=prefilter_manager, **kwargs | |
400 | ) |
|
400 | ) | |
401 | self.prefilter_manager.register_checker(self) |
|
401 | self.prefilter_manager.register_checker(self) | |
402 |
|
402 | |||
403 | def check(self, line_info): |
|
403 | def check(self, line_info): | |
404 | """Inspect line_info and return a handler instance or None.""" |
|
404 | """Inspect line_info and return a handler instance or None.""" | |
405 | return None |
|
405 | return None | |
406 |
|
406 | |||
407 | def __repr__(self): |
|
407 | def __repr__(self): | |
408 | return "<%s(priority=%r, enabled=%r)>" % ( |
|
408 | return "<%s(priority=%r, enabled=%r)>" % ( | |
409 | self.__class__.__name__, self.priority, self.enabled) |
|
409 | self.__class__.__name__, self.priority, self.enabled) | |
410 |
|
410 | |||
411 |
|
411 | |||
412 | class EmacsChecker(PrefilterChecker): |
|
412 | class EmacsChecker(PrefilterChecker): | |
413 |
|
413 | |||
414 | priority = Integer(100).tag(config=True) |
|
414 | priority = Integer(100).tag(config=True) | |
415 | enabled = Bool(False).tag(config=True) |
|
415 | enabled = Bool(False).tag(config=True) | |
416 |
|
416 | |||
417 | def check(self, line_info): |
|
417 | def check(self, line_info): | |
418 | "Emacs ipython-mode tags certain input lines." |
|
418 | "Emacs ipython-mode tags certain input lines." | |
419 | if line_info.line.endswith('# PYTHON-MODE'): |
|
419 | if line_info.line.endswith('# PYTHON-MODE'): | |
420 | return self.prefilter_manager.get_handler_by_name('emacs') |
|
420 | return self.prefilter_manager.get_handler_by_name('emacs') | |
421 | else: |
|
421 | else: | |
422 | return None |
|
422 | return None | |
423 |
|
423 | |||
424 |
|
424 | |||
425 | class MacroChecker(PrefilterChecker): |
|
425 | class MacroChecker(PrefilterChecker): | |
426 |
|
426 | |||
427 | priority = Integer(250).tag(config=True) |
|
427 | priority = Integer(250).tag(config=True) | |
428 |
|
428 | |||
429 | def check(self, line_info): |
|
429 | def check(self, line_info): | |
430 | obj = self.shell.user_ns.get(line_info.ifun) |
|
430 | obj = self.shell.user_ns.get(line_info.ifun) | |
431 | if isinstance(obj, Macro): |
|
431 | if isinstance(obj, Macro): | |
432 | return self.prefilter_manager.get_handler_by_name('macro') |
|
432 | return self.prefilter_manager.get_handler_by_name('macro') | |
433 | else: |
|
433 | else: | |
434 | return None |
|
434 | return None | |
435 |
|
435 | |||
436 |
|
436 | |||
437 | class IPyAutocallChecker(PrefilterChecker): |
|
437 | class IPyAutocallChecker(PrefilterChecker): | |
438 |
|
438 | |||
439 | priority = Integer(300).tag(config=True) |
|
439 | priority = Integer(300).tag(config=True) | |
440 |
|
440 | |||
441 | def check(self, line_info): |
|
441 | def check(self, line_info): | |
442 | "Instances of IPyAutocall in user_ns get autocalled immediately" |
|
442 | "Instances of IPyAutocall in user_ns get autocalled immediately" | |
443 | obj = self.shell.user_ns.get(line_info.ifun, None) |
|
443 | obj = self.shell.user_ns.get(line_info.ifun, None) | |
444 | if isinstance(obj, IPyAutocall): |
|
444 | if isinstance(obj, IPyAutocall): | |
445 | obj.set_ip(self.shell) |
|
445 | obj.set_ip(self.shell) | |
446 | return self.prefilter_manager.get_handler_by_name('auto') |
|
446 | return self.prefilter_manager.get_handler_by_name('auto') | |
447 | else: |
|
447 | else: | |
448 | return None |
|
448 | return None | |
449 |
|
449 | |||
450 |
|
450 | |||
451 | class AssignmentChecker(PrefilterChecker): |
|
451 | class AssignmentChecker(PrefilterChecker): | |
452 |
|
452 | |||
453 | priority = Integer(600).tag(config=True) |
|
453 | priority = Integer(600).tag(config=True) | |
454 |
|
454 | |||
455 | def check(self, line_info): |
|
455 | def check(self, line_info): | |
456 | """Check to see if user is assigning to a var for the first time, in |
|
456 | """Check to see if user is assigning to a var for the first time, in | |
457 | which case we want to avoid any sort of automagic / autocall games. |
|
457 | which case we want to avoid any sort of automagic / autocall games. | |
458 |
|
458 | |||
459 | This allows users to assign to either alias or magic names true python |
|
459 | This allows users to assign to either alias or magic names true python | |
460 | variables (the magic/alias systems always take second seat to true |
|
460 | variables (the magic/alias systems always take second seat to true | |
461 | python code). E.g. ls='hi', or ls,that=1,2""" |
|
461 | python code). E.g. ls='hi', or ls,that=1,2""" | |
462 | if line_info.the_rest: |
|
462 | if line_info.the_rest: | |
463 | if line_info.the_rest[0] in '=,': |
|
463 | if line_info.the_rest[0] in '=,': | |
464 | return self.prefilter_manager.get_handler_by_name('normal') |
|
464 | return self.prefilter_manager.get_handler_by_name('normal') | |
465 | else: |
|
465 | else: | |
466 | return None |
|
466 | return None | |
467 |
|
467 | |||
468 |
|
468 | |||
469 | class AutoMagicChecker(PrefilterChecker): |
|
469 | class AutoMagicChecker(PrefilterChecker): | |
470 |
|
470 | |||
471 | priority = Integer(700).tag(config=True) |
|
471 | priority = Integer(700).tag(config=True) | |
472 |
|
472 | |||
473 | def check(self, line_info): |
|
473 | def check(self, line_info): | |
474 | """If the ifun is magic, and automagic is on, run it. Note: normal, |
|
474 | """If the ifun is magic, and automagic is on, run it. Note: normal, | |
475 | non-auto magic would already have been triggered via '%' in |
|
475 | non-auto magic would already have been triggered via '%' in | |
476 | check_esc_chars. This just checks for automagic. Also, before |
|
476 | check_esc_chars. This just checks for automagic. Also, before | |
477 | triggering the magic handler, make sure that there is nothing in the |
|
477 | triggering the magic handler, make sure that there is nothing in the | |
478 | user namespace which could shadow it.""" |
|
478 | user namespace which could shadow it.""" | |
479 | if not self.shell.automagic or not self.shell.find_magic(line_info.ifun): |
|
479 | if not self.shell.automagic or not self.shell.find_magic(line_info.ifun): | |
480 | return None |
|
480 | return None | |
481 |
|
481 | |||
482 | # We have a likely magic method. Make sure we should actually call it. |
|
482 | # We have a likely magic method. Make sure we should actually call it. | |
483 | if line_info.continue_prompt and not self.prefilter_manager.multi_line_specials: |
|
483 | if line_info.continue_prompt and not self.prefilter_manager.multi_line_specials: | |
484 | return None |
|
484 | return None | |
485 |
|
485 | |||
486 | head = line_info.ifun.split('.',1)[0] |
|
486 | head = line_info.ifun.split('.',1)[0] | |
487 | if is_shadowed(head, self.shell): |
|
487 | if is_shadowed(head, self.shell): | |
488 | return None |
|
488 | return None | |
489 |
|
489 | |||
490 | return self.prefilter_manager.get_handler_by_name('magic') |
|
490 | return self.prefilter_manager.get_handler_by_name('magic') | |
491 |
|
491 | |||
492 |
|
492 | |||
493 | class PythonOpsChecker(PrefilterChecker): |
|
493 | class PythonOpsChecker(PrefilterChecker): | |
494 |
|
494 | |||
495 | priority = Integer(900).tag(config=True) |
|
495 | priority = Integer(900).tag(config=True) | |
496 |
|
496 | |||
497 | def check(self, line_info): |
|
497 | def check(self, line_info): | |
498 | """If the 'rest' of the line begins with a function call or pretty much |
|
498 | """If the 'rest' of the line begins with a function call or pretty much | |
499 | any python operator, we should simply execute the line (regardless of |
|
499 | any python operator, we should simply execute the line (regardless of | |
500 | whether or not there's a possible autocall expansion). This avoids |
|
500 | whether or not there's a possible autocall expansion). This avoids | |
501 | spurious (and very confusing) geattr() accesses.""" |
|
501 | spurious (and very confusing) geattr() accesses.""" | |
502 | if line_info.the_rest and line_info.the_rest[0] in '!=()<>,+*/%^&|': |
|
502 | if line_info.the_rest and line_info.the_rest[0] in '!=()<>,+*/%^&|': | |
503 | return self.prefilter_manager.get_handler_by_name('normal') |
|
503 | return self.prefilter_manager.get_handler_by_name('normal') | |
504 | else: |
|
504 | else: | |
505 | return None |
|
505 | return None | |
506 |
|
506 | |||
507 |
|
507 | |||
508 | class AutocallChecker(PrefilterChecker): |
|
508 | class AutocallChecker(PrefilterChecker): | |
509 |
|
509 | |||
510 | priority = Integer(1000).tag(config=True) |
|
510 | priority = Integer(1000).tag(config=True) | |
511 |
|
511 | |||
512 |
function_name_regexp = CRegExp(re_fun_name |
|
512 | function_name_regexp = CRegExp(re_fun_name, | |
513 |
help="RegExp to identify potential function names." |
|
513 | help="RegExp to identify potential function names." | |
514 | exclude_regexp = CRegExp(re_exclude_auto).tag(config=True, |
|
514 | ).tag(config=True) | |
515 | help="RegExp to exclude strings with this start from autocalling.") |
|
515 | exclude_regexp = CRegExp(re_exclude_auto, | |
|
516 | help="RegExp to exclude strings with this start from autocalling." | |||
|
517 | ).tag(config=True) | |||
516 |
|
518 | |||
517 | def check(self, line_info): |
|
519 | def check(self, line_info): | |
518 | "Check if the initial word/function is callable and autocall is on." |
|
520 | "Check if the initial word/function is callable and autocall is on." | |
519 | if not self.shell.autocall: |
|
521 | if not self.shell.autocall: | |
520 | return None |
|
522 | return None | |
521 |
|
523 | |||
522 | oinfo = line_info.ofind(self.shell) # This can mutate state via getattr |
|
524 | oinfo = line_info.ofind(self.shell) # This can mutate state via getattr | |
523 | if not oinfo['found']: |
|
525 | if not oinfo['found']: | |
524 | return None |
|
526 | return None | |
525 |
|
527 | |||
526 | if callable(oinfo['obj']) \ |
|
528 | if callable(oinfo['obj']) \ | |
527 | and (not self.exclude_regexp.match(line_info.the_rest)) \ |
|
529 | and (not self.exclude_regexp.match(line_info.the_rest)) \ | |
528 | and self.function_name_regexp.match(line_info.ifun): |
|
530 | and self.function_name_regexp.match(line_info.ifun): | |
529 | return self.prefilter_manager.get_handler_by_name('auto') |
|
531 | return self.prefilter_manager.get_handler_by_name('auto') | |
530 | else: |
|
532 | else: | |
531 | return None |
|
533 | return None | |
532 |
|
534 | |||
533 |
|
535 | |||
534 | #----------------------------------------------------------------------------- |
|
536 | #----------------------------------------------------------------------------- | |
535 | # Prefilter handlers |
|
537 | # Prefilter handlers | |
536 | #----------------------------------------------------------------------------- |
|
538 | #----------------------------------------------------------------------------- | |
537 |
|
539 | |||
538 |
|
540 | |||
539 | class PrefilterHandler(Configurable): |
|
541 | class PrefilterHandler(Configurable): | |
540 |
|
542 | |||
541 | handler_name = Unicode('normal') |
|
543 | handler_name = Unicode('normal') | |
542 | esc_strings = List([]) |
|
544 | esc_strings = List([]) | |
543 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True) |
|
545 | shell = Instance('IPython.core.interactiveshell.InteractiveShellABC', allow_none=True) | |
544 | prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager', allow_none=True) |
|
546 | prefilter_manager = Instance('IPython.core.prefilter.PrefilterManager', allow_none=True) | |
545 |
|
547 | |||
546 | def __init__(self, shell=None, prefilter_manager=None, **kwargs): |
|
548 | def __init__(self, shell=None, prefilter_manager=None, **kwargs): | |
547 | super(PrefilterHandler, self).__init__( |
|
549 | super(PrefilterHandler, self).__init__( | |
548 | shell=shell, prefilter_manager=prefilter_manager, **kwargs |
|
550 | shell=shell, prefilter_manager=prefilter_manager, **kwargs | |
549 | ) |
|
551 | ) | |
550 | self.prefilter_manager.register_handler( |
|
552 | self.prefilter_manager.register_handler( | |
551 | self.handler_name, |
|
553 | self.handler_name, | |
552 | self, |
|
554 | self, | |
553 | self.esc_strings |
|
555 | self.esc_strings | |
554 | ) |
|
556 | ) | |
555 |
|
557 | |||
556 | def handle(self, line_info): |
|
558 | def handle(self, line_info): | |
557 | # print "normal: ", line_info |
|
559 | # print "normal: ", line_info | |
558 | """Handle normal input lines. Use as a template for handlers.""" |
|
560 | """Handle normal input lines. Use as a template for handlers.""" | |
559 |
|
561 | |||
560 | # With autoindent on, we need some way to exit the input loop, and I |
|
562 | # With autoindent on, we need some way to exit the input loop, and I | |
561 | # don't want to force the user to have to backspace all the way to |
|
563 | # don't want to force the user to have to backspace all the way to | |
562 | # clear the line. The rule will be in this case, that either two |
|
564 | # clear the line. The rule will be in this case, that either two | |
563 | # lines of pure whitespace in a row, or a line of pure whitespace but |
|
565 | # lines of pure whitespace in a row, or a line of pure whitespace but | |
564 | # of a size different to the indent level, will exit the input loop. |
|
566 | # of a size different to the indent level, will exit the input loop. | |
565 | line = line_info.line |
|
567 | line = line_info.line | |
566 | continue_prompt = line_info.continue_prompt |
|
568 | continue_prompt = line_info.continue_prompt | |
567 |
|
569 | |||
568 | if (continue_prompt and |
|
570 | if (continue_prompt and | |
569 | self.shell.autoindent and |
|
571 | self.shell.autoindent and | |
570 | line.isspace() and |
|
572 | line.isspace() and | |
571 | 0 < abs(len(line) - self.shell.indent_current_nsp) <= 2): |
|
573 | 0 < abs(len(line) - self.shell.indent_current_nsp) <= 2): | |
572 | line = '' |
|
574 | line = '' | |
573 |
|
575 | |||
574 | return line |
|
576 | return line | |
575 |
|
577 | |||
576 | def __str__(self): |
|
578 | def __str__(self): | |
577 | return "<%s(name=%s)>" % (self.__class__.__name__, self.handler_name) |
|
579 | return "<%s(name=%s)>" % (self.__class__.__name__, self.handler_name) | |
578 |
|
580 | |||
579 |
|
581 | |||
580 | class MacroHandler(PrefilterHandler): |
|
582 | class MacroHandler(PrefilterHandler): | |
581 | handler_name = Unicode("macro") |
|
583 | handler_name = Unicode("macro") | |
582 |
|
584 | |||
583 | def handle(self, line_info): |
|
585 | def handle(self, line_info): | |
584 | obj = self.shell.user_ns.get(line_info.ifun) |
|
586 | obj = self.shell.user_ns.get(line_info.ifun) | |
585 | pre_space = line_info.pre_whitespace |
|
587 | pre_space = line_info.pre_whitespace | |
586 | line_sep = "\n" + pre_space |
|
588 | line_sep = "\n" + pre_space | |
587 | return pre_space + line_sep.join(obj.value.splitlines()) |
|
589 | return pre_space + line_sep.join(obj.value.splitlines()) | |
588 |
|
590 | |||
589 |
|
591 | |||
590 | class MagicHandler(PrefilterHandler): |
|
592 | class MagicHandler(PrefilterHandler): | |
591 |
|
593 | |||
592 | handler_name = Unicode('magic') |
|
594 | handler_name = Unicode('magic') | |
593 | esc_strings = List([ESC_MAGIC]) |
|
595 | esc_strings = List([ESC_MAGIC]) | |
594 |
|
596 | |||
595 | def handle(self, line_info): |
|
597 | def handle(self, line_info): | |
596 | """Execute magic functions.""" |
|
598 | """Execute magic functions.""" | |
597 | ifun = line_info.ifun |
|
599 | ifun = line_info.ifun | |
598 | the_rest = line_info.the_rest |
|
600 | the_rest = line_info.the_rest | |
599 | cmd = '%sget_ipython().magic(%r)' % (line_info.pre_whitespace, |
|
601 | cmd = '%sget_ipython().magic(%r)' % (line_info.pre_whitespace, | |
600 | (ifun + " " + the_rest)) |
|
602 | (ifun + " " + the_rest)) | |
601 | return cmd |
|
603 | return cmd | |
602 |
|
604 | |||
603 |
|
605 | |||
604 | class AutoHandler(PrefilterHandler): |
|
606 | class AutoHandler(PrefilterHandler): | |
605 |
|
607 | |||
606 | handler_name = Unicode('auto') |
|
608 | handler_name = Unicode('auto') | |
607 | esc_strings = List([ESC_PAREN, ESC_QUOTE, ESC_QUOTE2]) |
|
609 | esc_strings = List([ESC_PAREN, ESC_QUOTE, ESC_QUOTE2]) | |
608 |
|
610 | |||
609 | def handle(self, line_info): |
|
611 | def handle(self, line_info): | |
610 | """Handle lines which can be auto-executed, quoting if requested.""" |
|
612 | """Handle lines which can be auto-executed, quoting if requested.""" | |
611 | line = line_info.line |
|
613 | line = line_info.line | |
612 | ifun = line_info.ifun |
|
614 | ifun = line_info.ifun | |
613 | the_rest = line_info.the_rest |
|
615 | the_rest = line_info.the_rest | |
614 | esc = line_info.esc |
|
616 | esc = line_info.esc | |
615 | continue_prompt = line_info.continue_prompt |
|
617 | continue_prompt = line_info.continue_prompt | |
616 | obj = line_info.ofind(self.shell)['obj'] |
|
618 | obj = line_info.ofind(self.shell)['obj'] | |
617 |
|
619 | |||
618 | # This should only be active for single-line input! |
|
620 | # This should only be active for single-line input! | |
619 | if continue_prompt: |
|
621 | if continue_prompt: | |
620 | return line |
|
622 | return line | |
621 |
|
623 | |||
622 | force_auto = isinstance(obj, IPyAutocall) |
|
624 | force_auto = isinstance(obj, IPyAutocall) | |
623 |
|
625 | |||
624 | # User objects sometimes raise exceptions on attribute access other |
|
626 | # User objects sometimes raise exceptions on attribute access other | |
625 | # than AttributeError (we've seen it in the past), so it's safest to be |
|
627 | # than AttributeError (we've seen it in the past), so it's safest to be | |
626 | # ultra-conservative here and catch all. |
|
628 | # ultra-conservative here and catch all. | |
627 | try: |
|
629 | try: | |
628 | auto_rewrite = obj.rewrite |
|
630 | auto_rewrite = obj.rewrite | |
629 | except Exception: |
|
631 | except Exception: | |
630 | auto_rewrite = True |
|
632 | auto_rewrite = True | |
631 |
|
633 | |||
632 | if esc == ESC_QUOTE: |
|
634 | if esc == ESC_QUOTE: | |
633 | # Auto-quote splitting on whitespace |
|
635 | # Auto-quote splitting on whitespace | |
634 | newcmd = '%s("%s")' % (ifun,'", "'.join(the_rest.split()) ) |
|
636 | newcmd = '%s("%s")' % (ifun,'", "'.join(the_rest.split()) ) | |
635 | elif esc == ESC_QUOTE2: |
|
637 | elif esc == ESC_QUOTE2: | |
636 | # Auto-quote whole string |
|
638 | # Auto-quote whole string | |
637 | newcmd = '%s("%s")' % (ifun,the_rest) |
|
639 | newcmd = '%s("%s")' % (ifun,the_rest) | |
638 | elif esc == ESC_PAREN: |
|
640 | elif esc == ESC_PAREN: | |
639 | newcmd = '%s(%s)' % (ifun,",".join(the_rest.split())) |
|
641 | newcmd = '%s(%s)' % (ifun,",".join(the_rest.split())) | |
640 | else: |
|
642 | else: | |
641 | # Auto-paren. |
|
643 | # Auto-paren. | |
642 | if force_auto: |
|
644 | if force_auto: | |
643 | # Don't rewrite if it is already a call. |
|
645 | # Don't rewrite if it is already a call. | |
644 | do_rewrite = not the_rest.startswith('(') |
|
646 | do_rewrite = not the_rest.startswith('(') | |
645 | else: |
|
647 | else: | |
646 | if not the_rest: |
|
648 | if not the_rest: | |
647 | # We only apply it to argument-less calls if the autocall |
|
649 | # We only apply it to argument-less calls if the autocall | |
648 | # parameter is set to 2. |
|
650 | # parameter is set to 2. | |
649 | do_rewrite = (self.shell.autocall >= 2) |
|
651 | do_rewrite = (self.shell.autocall >= 2) | |
650 | elif the_rest.startswith('[') and hasattr(obj, '__getitem__'): |
|
652 | elif the_rest.startswith('[') and hasattr(obj, '__getitem__'): | |
651 | # Don't autocall in this case: item access for an object |
|
653 | # Don't autocall in this case: item access for an object | |
652 | # which is BOTH callable and implements __getitem__. |
|
654 | # which is BOTH callable and implements __getitem__. | |
653 | do_rewrite = False |
|
655 | do_rewrite = False | |
654 | else: |
|
656 | else: | |
655 | do_rewrite = True |
|
657 | do_rewrite = True | |
656 |
|
658 | |||
657 | # Figure out the rewritten command |
|
659 | # Figure out the rewritten command | |
658 | if do_rewrite: |
|
660 | if do_rewrite: | |
659 | if the_rest.endswith(';'): |
|
661 | if the_rest.endswith(';'): | |
660 | newcmd = '%s(%s);' % (ifun.rstrip(),the_rest[:-1]) |
|
662 | newcmd = '%s(%s);' % (ifun.rstrip(),the_rest[:-1]) | |
661 | else: |
|
663 | else: | |
662 | newcmd = '%s(%s)' % (ifun.rstrip(), the_rest) |
|
664 | newcmd = '%s(%s)' % (ifun.rstrip(), the_rest) | |
663 | else: |
|
665 | else: | |
664 | normal_handler = self.prefilter_manager.get_handler_by_name('normal') |
|
666 | normal_handler = self.prefilter_manager.get_handler_by_name('normal') | |
665 | return normal_handler.handle(line_info) |
|
667 | return normal_handler.handle(line_info) | |
666 |
|
668 | |||
667 | # Display the rewritten call |
|
669 | # Display the rewritten call | |
668 | if auto_rewrite: |
|
670 | if auto_rewrite: | |
669 | self.shell.auto_rewrite_input(newcmd) |
|
671 | self.shell.auto_rewrite_input(newcmd) | |
670 |
|
672 | |||
671 | return newcmd |
|
673 | return newcmd | |
672 |
|
674 | |||
673 |
|
675 | |||
674 | class EmacsHandler(PrefilterHandler): |
|
676 | class EmacsHandler(PrefilterHandler): | |
675 |
|
677 | |||
676 | handler_name = Unicode('emacs') |
|
678 | handler_name = Unicode('emacs') | |
677 | esc_strings = List([]) |
|
679 | esc_strings = List([]) | |
678 |
|
680 | |||
679 | def handle(self, line_info): |
|
681 | def handle(self, line_info): | |
680 | """Handle input lines marked by python-mode.""" |
|
682 | """Handle input lines marked by python-mode.""" | |
681 |
|
683 | |||
682 | # Currently, nothing is done. Later more functionality can be added |
|
684 | # Currently, nothing is done. Later more functionality can be added | |
683 | # here if needed. |
|
685 | # here if needed. | |
684 |
|
686 | |||
685 | # The input cache shouldn't be updated |
|
687 | # The input cache shouldn't be updated | |
686 | return line_info.line |
|
688 | return line_info.line | |
687 |
|
689 | |||
688 |
|
690 | |||
689 | #----------------------------------------------------------------------------- |
|
691 | #----------------------------------------------------------------------------- | |
690 | # Defaults |
|
692 | # Defaults | |
691 | #----------------------------------------------------------------------------- |
|
693 | #----------------------------------------------------------------------------- | |
692 |
|
694 | |||
693 |
|
695 | |||
694 | _default_transformers = [ |
|
696 | _default_transformers = [ | |
695 | ] |
|
697 | ] | |
696 |
|
698 | |||
697 | _default_checkers = [ |
|
699 | _default_checkers = [ | |
698 | EmacsChecker, |
|
700 | EmacsChecker, | |
699 | MacroChecker, |
|
701 | MacroChecker, | |
700 | IPyAutocallChecker, |
|
702 | IPyAutocallChecker, | |
701 | AssignmentChecker, |
|
703 | AssignmentChecker, | |
702 | AutoMagicChecker, |
|
704 | AutoMagicChecker, | |
703 | PythonOpsChecker, |
|
705 | PythonOpsChecker, | |
704 | AutocallChecker |
|
706 | AutocallChecker | |
705 | ] |
|
707 | ] | |
706 |
|
708 | |||
707 | _default_handlers = [ |
|
709 | _default_handlers = [ | |
708 | PrefilterHandler, |
|
710 | PrefilterHandler, | |
709 | MacroHandler, |
|
711 | MacroHandler, | |
710 | MagicHandler, |
|
712 | MagicHandler, | |
711 | AutoHandler, |
|
713 | AutoHandler, | |
712 | EmacsHandler |
|
714 | EmacsHandler | |
713 | ] |
|
715 | ] |
@@ -1,463 +1,464 b'' | |||||
1 | """IPython terminal interface using prompt_toolkit in place of readline""" |
|
1 | """IPython terminal interface using prompt_toolkit in place of readline""" | |
2 | from __future__ import print_function |
|
2 | from __future__ import print_function | |
3 |
|
3 | |||
4 | import os |
|
4 | import os | |
5 | import sys |
|
5 | import sys | |
6 | import signal |
|
6 | import signal | |
7 | import unicodedata |
|
7 | import unicodedata | |
8 | from warnings import warn |
|
8 | from warnings import warn | |
9 | from wcwidth import wcwidth |
|
9 | from wcwidth import wcwidth | |
10 |
|
10 | |||
11 | from IPython.core.error import TryNext |
|
11 | from IPython.core.error import TryNext | |
12 | from IPython.core.interactiveshell import InteractiveShell |
|
12 | from IPython.core.interactiveshell import InteractiveShell | |
13 | from IPython.utils.py3compat import PY3, cast_unicode_py2, input |
|
13 | from IPython.utils.py3compat import PY3, cast_unicode_py2, input | |
14 | from IPython.utils.terminal import toggle_set_term_title, set_term_title |
|
14 | from IPython.utils.terminal import toggle_set_term_title, set_term_title | |
15 | from IPython.utils.process import abbrev_cwd |
|
15 | from IPython.utils.process import abbrev_cwd | |
16 | from traitlets import Bool, CBool, Unicode, Dict, Integer, observe |
|
16 | from traitlets import Bool, CBool, Unicode, Dict, Integer, observe | |
17 |
|
17 | |||
18 | from prompt_toolkit.completion import Completer, Completion |
|
18 | from prompt_toolkit.completion import Completer, Completion | |
19 | from prompt_toolkit.enums import DEFAULT_BUFFER, SEARCH_BUFFER, EditingMode |
|
19 | from prompt_toolkit.enums import DEFAULT_BUFFER, SEARCH_BUFFER, EditingMode | |
20 | from prompt_toolkit.filters import HasFocus, HasSelection, Condition, ViInsertMode, EmacsInsertMode |
|
20 | from prompt_toolkit.filters import HasFocus, HasSelection, Condition, ViInsertMode, EmacsInsertMode | |
21 | from prompt_toolkit.history import InMemoryHistory |
|
21 | from prompt_toolkit.history import InMemoryHistory | |
22 | from prompt_toolkit.shortcuts import create_prompt_application, create_eventloop, create_prompt_layout |
|
22 | from prompt_toolkit.shortcuts import create_prompt_application, create_eventloop, create_prompt_layout | |
23 | from prompt_toolkit.interface import CommandLineInterface |
|
23 | from prompt_toolkit.interface import CommandLineInterface | |
24 | from prompt_toolkit.key_binding.manager import KeyBindingManager |
|
24 | from prompt_toolkit.key_binding.manager import KeyBindingManager | |
25 | from prompt_toolkit.keys import Keys |
|
25 | from prompt_toolkit.keys import Keys | |
26 | from prompt_toolkit.layout.lexers import Lexer |
|
26 | from prompt_toolkit.layout.lexers import Lexer | |
27 | from prompt_toolkit.layout.lexers import PygmentsLexer |
|
27 | from prompt_toolkit.layout.lexers import PygmentsLexer | |
28 | from prompt_toolkit.styles import PygmentsStyle, DynamicStyle |
|
28 | from prompt_toolkit.styles import PygmentsStyle, DynamicStyle | |
29 |
|
29 | |||
30 | from pygments.styles import get_style_by_name, get_all_styles |
|
30 | from pygments.styles import get_style_by_name, get_all_styles | |
31 | from pygments.lexers import Python3Lexer, BashLexer, PythonLexer |
|
31 | from pygments.lexers import Python3Lexer, BashLexer, PythonLexer | |
32 | from pygments.token import Token |
|
32 | from pygments.token import Token | |
33 |
|
33 | |||
34 | from .pt_inputhooks import get_inputhook_func |
|
34 | from .pt_inputhooks import get_inputhook_func | |
35 | from .interactiveshell import get_default_editor, TerminalMagics |
|
35 | from .interactiveshell import get_default_editor, TerminalMagics | |
36 |
|
36 | |||
37 |
|
37 | |||
38 | class IPythonPTCompleter(Completer): |
|
38 | class IPythonPTCompleter(Completer): | |
39 | """Adaptor to provide IPython completions to prompt_toolkit""" |
|
39 | """Adaptor to provide IPython completions to prompt_toolkit""" | |
40 | def __init__(self, ipy_completer): |
|
40 | def __init__(self, ipy_completer): | |
41 | self.ipy_completer = ipy_completer |
|
41 | self.ipy_completer = ipy_completer | |
42 |
|
42 | |||
43 | def get_completions(self, document, complete_event): |
|
43 | def get_completions(self, document, complete_event): | |
44 | if not document.current_line.strip(): |
|
44 | if not document.current_line.strip(): | |
45 | return |
|
45 | return | |
46 |
|
46 | |||
47 | used, matches = self.ipy_completer.complete( |
|
47 | used, matches = self.ipy_completer.complete( | |
48 | line_buffer=document.current_line, |
|
48 | line_buffer=document.current_line, | |
49 | cursor_pos=document.cursor_position_col |
|
49 | cursor_pos=document.cursor_position_col | |
50 | ) |
|
50 | ) | |
51 | start_pos = -len(used) |
|
51 | start_pos = -len(used) | |
52 | for m in matches: |
|
52 | for m in matches: | |
53 | m = unicodedata.normalize('NFC', m) |
|
53 | m = unicodedata.normalize('NFC', m) | |
54 |
|
54 | |||
55 | # When the first character of the completion has a zero length, |
|
55 | # When the first character of the completion has a zero length, | |
56 | # then it's probably a decomposed unicode character. E.g. caused by |
|
56 | # then it's probably a decomposed unicode character. E.g. caused by | |
57 | # the "\dot" completion. Try to compose again with the previous |
|
57 | # the "\dot" completion. Try to compose again with the previous | |
58 | # character. |
|
58 | # character. | |
59 | if wcwidth(m[0]) == 0: |
|
59 | if wcwidth(m[0]) == 0: | |
60 | if document.cursor_position + start_pos > 0: |
|
60 | if document.cursor_position + start_pos > 0: | |
61 | char_before = document.text[document.cursor_position + start_pos - 1] |
|
61 | char_before = document.text[document.cursor_position + start_pos - 1] | |
62 | m = unicodedata.normalize('NFC', char_before + m) |
|
62 | m = unicodedata.normalize('NFC', char_before + m) | |
63 |
|
63 | |||
64 | # Yield the modified completion instead, if this worked. |
|
64 | # Yield the modified completion instead, if this worked. | |
65 | if wcwidth(m[0:1]) == 1: |
|
65 | if wcwidth(m[0:1]) == 1: | |
66 | yield Completion(m, start_position=start_pos - 1) |
|
66 | yield Completion(m, start_position=start_pos - 1) | |
67 | continue |
|
67 | continue | |
68 |
|
68 | |||
69 | # TODO: Use Jedi to determine meta_text |
|
69 | # TODO: Use Jedi to determine meta_text | |
70 | # (Jedi currently has a bug that results in incorrect information.) |
|
70 | # (Jedi currently has a bug that results in incorrect information.) | |
71 | # meta_text = '' |
|
71 | # meta_text = '' | |
72 | # yield Completion(m, start_position=start_pos, |
|
72 | # yield Completion(m, start_position=start_pos, | |
73 | # display_meta=meta_text) |
|
73 | # display_meta=meta_text) | |
74 | yield Completion(m, start_position=start_pos) |
|
74 | yield Completion(m, start_position=start_pos) | |
75 |
|
75 | |||
76 | class IPythonPTLexer(Lexer): |
|
76 | class IPythonPTLexer(Lexer): | |
77 | """ |
|
77 | """ | |
78 | Wrapper around PythonLexer and BashLexer. |
|
78 | Wrapper around PythonLexer and BashLexer. | |
79 | """ |
|
79 | """ | |
80 | def __init__(self): |
|
80 | def __init__(self): | |
81 | self.python_lexer = PygmentsLexer(Python3Lexer if PY3 else PythonLexer) |
|
81 | self.python_lexer = PygmentsLexer(Python3Lexer if PY3 else PythonLexer) | |
82 | self.shell_lexer = PygmentsLexer(BashLexer) |
|
82 | self.shell_lexer = PygmentsLexer(BashLexer) | |
83 |
|
83 | |||
84 | def lex_document(self, cli, document): |
|
84 | def lex_document(self, cli, document): | |
85 | if document.text.startswith('!'): |
|
85 | if document.text.startswith('!'): | |
86 | return self.shell_lexer.lex_document(cli, document) |
|
86 | return self.shell_lexer.lex_document(cli, document) | |
87 | else: |
|
87 | else: | |
88 | return self.python_lexer.lex_document(cli, document) |
|
88 | return self.python_lexer.lex_document(cli, document) | |
89 |
|
89 | |||
90 |
|
90 | |||
91 | class TerminalInteractiveShell(InteractiveShell): |
|
91 | class TerminalInteractiveShell(InteractiveShell): | |
92 | colors_force = True |
|
92 | colors_force = True | |
93 |
|
93 | |||
94 |
space_for_menu = Integer(6 |
|
94 | space_for_menu = Integer(6, help='Number of line at the bottom of the screen ' | |
95 |
'to reserve for the completion menu' |
|
95 | 'to reserve for the completion menu' | |
|
96 | ).tag(config=True) | |||
96 |
|
97 | |||
97 | def _space_for_menu_changed(self, old, new): |
|
98 | def _space_for_menu_changed(self, old, new): | |
98 | self._update_layout() |
|
99 | self._update_layout() | |
99 |
|
100 | |||
100 | pt_cli = None |
|
101 | pt_cli = None | |
101 |
|
102 | |||
102 | autoedit_syntax = CBool(False).tag(config=True, |
|
103 | autoedit_syntax = CBool(False).tag(config=True, | |
103 | help="auto editing of files with syntax errors.") |
|
104 | help="auto editing of files with syntax errors.") | |
104 |
|
105 | |||
105 | confirm_exit = CBool(True).tag(config=True, |
|
106 | confirm_exit = CBool(True).tag(config=True, | |
106 | help=""" |
|
107 | help=""" | |
107 | Set to confirm when you try to exit IPython with an EOF (Control-D |
|
108 | Set to confirm when you try to exit IPython with an EOF (Control-D | |
108 | in Unix, Control-Z/Enter in Windows). By typing 'exit' or 'quit', |
|
109 | in Unix, Control-Z/Enter in Windows). By typing 'exit' or 'quit', | |
109 | you can force a direct exit without any confirmation.""", |
|
110 | you can force a direct exit without any confirmation.""", | |
110 | ) |
|
111 | ) | |
111 |
editing_mode = Unicode('emacs' |
|
112 | editing_mode = Unicode('emacs', | |
112 | help="Shortcut style to use at the prompt. 'vi' or 'emacs'.", |
|
113 | help="Shortcut style to use at the prompt. 'vi' or 'emacs'.", | |
113 | ) |
|
114 | ).tag(config=True) | |
114 |
|
115 | |||
115 |
mouse_support = Bool(False |
|
116 | mouse_support = Bool(False, | |
116 | help="Enable mouse support in the prompt" |
|
117 | help="Enable mouse support in the prompt" | |
117 | ) |
|
118 | ).tag(config=True) | |
118 |
|
119 | |||
119 |
highlighting_style = Unicode('default' |
|
120 | highlighting_style = Unicode('default', | |
120 | help="The name of a Pygments style to use for syntax highlighting: \n %s" % ', '.join(get_all_styles()) |
|
121 | help="The name of a Pygments style to use for syntax highlighting: \n %s" % ', '.join(get_all_styles()) | |
121 | ) |
|
122 | ).tag(config=True) | |
122 |
|
123 | |||
123 | def _highlighting_style_changed(self, old, new): |
|
124 | def _highlighting_style_changed(self, old, new): | |
124 | self._style = self._make_style_from_name(self.highlighting_style) |
|
125 | self._style = self._make_style_from_name(self.highlighting_style) | |
125 |
|
126 | |||
126 |
highlighting_style_overrides = Dict( |
|
127 | highlighting_style_overrides = Dict( | |
127 | help="Override highlighting format for specific tokens" |
|
128 | help="Override highlighting format for specific tokens" | |
128 | ) |
|
129 | ).tag(config=True) | |
129 |
|
130 | |||
130 |
editor = Unicode(get_default_editor() |
|
131 | editor = Unicode(get_default_editor(), | |
131 | help="Set the editor used by IPython (default to $EDITOR/vi/notepad)." |
|
132 | help="Set the editor used by IPython (default to $EDITOR/vi/notepad)." | |
132 | ) |
|
133 | ).tag(config=True) | |
133 |
|
134 | |||
134 |
term_title = Bool(True |
|
135 | term_title = Bool(True, | |
135 | help="Automatically set the terminal title" |
|
136 | help="Automatically set the terminal title" | |
136 | ) |
|
137 | ).tag(config=True) | |
137 |
|
138 | |||
138 |
display_completions_in_columns = Bool(False |
|
139 | display_completions_in_columns = Bool(False, | |
139 | help="Display a multi column completion menu.", |
|
140 | help="Display a multi column completion menu.", | |
140 | ) |
|
141 | ).tag(config=True) | |
141 |
|
142 | |||
142 | @observe('term_title') |
|
143 | @observe('term_title') | |
143 | def _term_title_changed(self, change): |
|
144 | def _term_title_changed(self, change): | |
144 | self.init_term_title() |
|
145 | self.init_term_title() | |
145 |
|
146 | |||
146 | def init_term_title(self): |
|
147 | def init_term_title(self): | |
147 | # Enable or disable the terminal title. |
|
148 | # Enable or disable the terminal title. | |
148 | if self.term_title: |
|
149 | if self.term_title: | |
149 | toggle_set_term_title(True) |
|
150 | toggle_set_term_title(True) | |
150 | set_term_title('IPython: ' + abbrev_cwd()) |
|
151 | set_term_title('IPython: ' + abbrev_cwd()) | |
151 | else: |
|
152 | else: | |
152 | toggle_set_term_title(False) |
|
153 | toggle_set_term_title(False) | |
153 |
|
154 | |||
154 | def get_prompt_tokens(self, cli): |
|
155 | def get_prompt_tokens(self, cli): | |
155 | return [ |
|
156 | return [ | |
156 | (Token.Prompt, 'In ['), |
|
157 | (Token.Prompt, 'In ['), | |
157 | (Token.PromptNum, str(self.execution_count)), |
|
158 | (Token.PromptNum, str(self.execution_count)), | |
158 | (Token.Prompt, ']: '), |
|
159 | (Token.Prompt, ']: '), | |
159 | ] |
|
160 | ] | |
160 |
|
161 | |||
161 | def get_continuation_tokens(self, cli, width): |
|
162 | def get_continuation_tokens(self, cli, width): | |
162 | return [ |
|
163 | return [ | |
163 | (Token.Prompt, (' ' * (width - 5)) + '...: '), |
|
164 | (Token.Prompt, (' ' * (width - 5)) + '...: '), | |
164 | ] |
|
165 | ] | |
165 |
|
166 | |||
166 | def init_prompt_toolkit_cli(self): |
|
167 | def init_prompt_toolkit_cli(self): | |
167 | if ('IPY_TEST_SIMPLE_PROMPT' in os.environ) or not sys.stdin.isatty(): |
|
168 | if ('IPY_TEST_SIMPLE_PROMPT' in os.environ) or not sys.stdin.isatty(): | |
168 | # Fall back to plain non-interactive output for tests. |
|
169 | # Fall back to plain non-interactive output for tests. | |
169 | # This is very limited, and only accepts a single line. |
|
170 | # This is very limited, and only accepts a single line. | |
170 | def prompt(): |
|
171 | def prompt(): | |
171 | return cast_unicode_py2(input('In [%d]: ' % self.execution_count)) |
|
172 | return cast_unicode_py2(input('In [%d]: ' % self.execution_count)) | |
172 | self.prompt_for_code = prompt |
|
173 | self.prompt_for_code = prompt | |
173 | return |
|
174 | return | |
174 |
|
175 | |||
175 | kbmanager = KeyBindingManager.for_prompt() |
|
176 | kbmanager = KeyBindingManager.for_prompt() | |
176 | insert_mode = ViInsertMode() | EmacsInsertMode() |
|
177 | insert_mode = ViInsertMode() | EmacsInsertMode() | |
177 | # Ctrl+J == Enter, seemingly |
|
178 | # Ctrl+J == Enter, seemingly | |
178 | @kbmanager.registry.add_binding(Keys.ControlJ, |
|
179 | @kbmanager.registry.add_binding(Keys.ControlJ, | |
179 | filter=(HasFocus(DEFAULT_BUFFER) |
|
180 | filter=(HasFocus(DEFAULT_BUFFER) | |
180 | & ~HasSelection() |
|
181 | & ~HasSelection() | |
181 | & insert_mode |
|
182 | & insert_mode | |
182 | )) |
|
183 | )) | |
183 | def _(event): |
|
184 | def _(event): | |
184 | b = event.current_buffer |
|
185 | b = event.current_buffer | |
185 | d = b.document |
|
186 | d = b.document | |
186 | if not (d.on_last_line or d.cursor_position_row >= d.line_count |
|
187 | if not (d.on_last_line or d.cursor_position_row >= d.line_count | |
187 | - d.empty_line_count_at_the_end()): |
|
188 | - d.empty_line_count_at_the_end()): | |
188 | b.newline() |
|
189 | b.newline() | |
189 | return |
|
190 | return | |
190 |
|
191 | |||
191 | status, indent = self.input_splitter.check_complete(d.text) |
|
192 | status, indent = self.input_splitter.check_complete(d.text) | |
192 |
|
193 | |||
193 | if (status != 'incomplete') and b.accept_action.is_returnable: |
|
194 | if (status != 'incomplete') and b.accept_action.is_returnable: | |
194 | b.accept_action.validate_and_handle(event.cli, b) |
|
195 | b.accept_action.validate_and_handle(event.cli, b) | |
195 | else: |
|
196 | else: | |
196 | b.insert_text('\n' + (' ' * (indent or 0))) |
|
197 | b.insert_text('\n' + (' ' * (indent or 0))) | |
197 |
|
198 | |||
198 | @kbmanager.registry.add_binding(Keys.ControlC, filter=HasFocus(DEFAULT_BUFFER)) |
|
199 | @kbmanager.registry.add_binding(Keys.ControlC, filter=HasFocus(DEFAULT_BUFFER)) | |
199 | def _reset_buffer(event): |
|
200 | def _reset_buffer(event): | |
200 | event.current_buffer.reset() |
|
201 | event.current_buffer.reset() | |
201 |
|
202 | |||
202 | @kbmanager.registry.add_binding(Keys.ControlC, filter=HasFocus(SEARCH_BUFFER)) |
|
203 | @kbmanager.registry.add_binding(Keys.ControlC, filter=HasFocus(SEARCH_BUFFER)) | |
203 | def _reset_search_buffer(event): |
|
204 | def _reset_search_buffer(event): | |
204 | if event.current_buffer.document.text: |
|
205 | if event.current_buffer.document.text: | |
205 | event.current_buffer.reset() |
|
206 | event.current_buffer.reset() | |
206 | else: |
|
207 | else: | |
207 | event.cli.push_focus(DEFAULT_BUFFER) |
|
208 | event.cli.push_focus(DEFAULT_BUFFER) | |
208 |
|
209 | |||
209 | supports_suspend = Condition(lambda cli: hasattr(signal, 'SIGTSTP')) |
|
210 | supports_suspend = Condition(lambda cli: hasattr(signal, 'SIGTSTP')) | |
210 |
|
211 | |||
211 | @kbmanager.registry.add_binding(Keys.ControlZ, filter=supports_suspend) |
|
212 | @kbmanager.registry.add_binding(Keys.ControlZ, filter=supports_suspend) | |
212 | def _suspend_to_bg(event): |
|
213 | def _suspend_to_bg(event): | |
213 | event.cli.suspend_to_background() |
|
214 | event.cli.suspend_to_background() | |
214 |
|
215 | |||
215 | @Condition |
|
216 | @Condition | |
216 | def cursor_in_leading_ws(cli): |
|
217 | def cursor_in_leading_ws(cli): | |
217 | before = cli.application.buffer.document.current_line_before_cursor |
|
218 | before = cli.application.buffer.document.current_line_before_cursor | |
218 | return (not before) or before.isspace() |
|
219 | return (not before) or before.isspace() | |
219 |
|
220 | |||
220 | # Ctrl+I == Tab |
|
221 | # Ctrl+I == Tab | |
221 | @kbmanager.registry.add_binding(Keys.ControlI, |
|
222 | @kbmanager.registry.add_binding(Keys.ControlI, | |
222 | filter=(HasFocus(DEFAULT_BUFFER) |
|
223 | filter=(HasFocus(DEFAULT_BUFFER) | |
223 | & ~HasSelection() |
|
224 | & ~HasSelection() | |
224 | & insert_mode |
|
225 | & insert_mode | |
225 | & cursor_in_leading_ws |
|
226 | & cursor_in_leading_ws | |
226 | )) |
|
227 | )) | |
227 | def _indent_buffer(event): |
|
228 | def _indent_buffer(event): | |
228 | event.current_buffer.insert_text(' ' * 4) |
|
229 | event.current_buffer.insert_text(' ' * 4) | |
229 |
|
230 | |||
230 | # Pre-populate history from IPython's history database |
|
231 | # Pre-populate history from IPython's history database | |
231 | history = InMemoryHistory() |
|
232 | history = InMemoryHistory() | |
232 | last_cell = u"" |
|
233 | last_cell = u"" | |
233 | for __, ___, cell in self.history_manager.get_tail(self.history_load_length, |
|
234 | for __, ___, cell in self.history_manager.get_tail(self.history_load_length, | |
234 | include_latest=True): |
|
235 | include_latest=True): | |
235 | # Ignore blank lines and consecutive duplicates |
|
236 | # Ignore blank lines and consecutive duplicates | |
236 | cell = cell.rstrip() |
|
237 | cell = cell.rstrip() | |
237 | if cell and (cell != last_cell): |
|
238 | if cell and (cell != last_cell): | |
238 | history.append(cell) |
|
239 | history.append(cell) | |
239 |
|
240 | |||
240 | self._style = self._make_style_from_name(self.highlighting_style) |
|
241 | self._style = self._make_style_from_name(self.highlighting_style) | |
241 | style = DynamicStyle(lambda: self._style) |
|
242 | style = DynamicStyle(lambda: self._style) | |
242 |
|
243 | |||
243 | editing_mode = getattr(EditingMode, self.editing_mode.upper()) |
|
244 | editing_mode = getattr(EditingMode, self.editing_mode.upper()) | |
244 |
|
245 | |||
245 | self._app = create_prompt_application( |
|
246 | self._app = create_prompt_application( | |
246 | editing_mode=editing_mode, |
|
247 | editing_mode=editing_mode, | |
247 | key_bindings_registry=kbmanager.registry, |
|
248 | key_bindings_registry=kbmanager.registry, | |
248 | history=history, |
|
249 | history=history, | |
249 | completer=IPythonPTCompleter(self.Completer), |
|
250 | completer=IPythonPTCompleter(self.Completer), | |
250 | enable_history_search=True, |
|
251 | enable_history_search=True, | |
251 | style=style, |
|
252 | style=style, | |
252 | mouse_support=self.mouse_support, |
|
253 | mouse_support=self.mouse_support, | |
253 | **self._layout_options() |
|
254 | **self._layout_options() | |
254 | ) |
|
255 | ) | |
255 | self.pt_cli = CommandLineInterface(self._app, |
|
256 | self.pt_cli = CommandLineInterface(self._app, | |
256 | eventloop=create_eventloop(self.inputhook)) |
|
257 | eventloop=create_eventloop(self.inputhook)) | |
257 |
|
258 | |||
258 | def _make_style_from_name(self, name): |
|
259 | def _make_style_from_name(self, name): | |
259 | """ |
|
260 | """ | |
260 | Small wrapper that make an IPython compatible style from a style name |
|
261 | Small wrapper that make an IPython compatible style from a style name | |
261 |
|
262 | |||
262 | We need that to add style for prompt ... etc. |
|
263 | We need that to add style for prompt ... etc. | |
263 | """ |
|
264 | """ | |
264 | style_cls = get_style_by_name(name) |
|
265 | style_cls = get_style_by_name(name) | |
265 | style_overrides = { |
|
266 | style_overrides = { | |
266 | Token.Prompt: '#009900', |
|
267 | Token.Prompt: '#009900', | |
267 | Token.PromptNum: '#00ff00 bold', |
|
268 | Token.PromptNum: '#00ff00 bold', | |
268 | } |
|
269 | } | |
269 | if name == 'default': |
|
270 | if name == 'default': | |
270 | style_cls = get_style_by_name('default') |
|
271 | style_cls = get_style_by_name('default') | |
271 | # The default theme needs to be visible on both a dark background |
|
272 | # The default theme needs to be visible on both a dark background | |
272 | # and a light background, because we can't tell what the terminal |
|
273 | # and a light background, because we can't tell what the terminal | |
273 | # looks like. These tweaks to the default theme help with that. |
|
274 | # looks like. These tweaks to the default theme help with that. | |
274 | style_overrides.update({ |
|
275 | style_overrides.update({ | |
275 | Token.Number: '#007700', |
|
276 | Token.Number: '#007700', | |
276 | Token.Operator: 'noinherit', |
|
277 | Token.Operator: 'noinherit', | |
277 | Token.String: '#BB6622', |
|
278 | Token.String: '#BB6622', | |
278 | Token.Name.Function: '#2080D0', |
|
279 | Token.Name.Function: '#2080D0', | |
279 | Token.Name.Class: 'bold #2080D0', |
|
280 | Token.Name.Class: 'bold #2080D0', | |
280 | Token.Name.Namespace: 'bold #2080D0', |
|
281 | Token.Name.Namespace: 'bold #2080D0', | |
281 | }) |
|
282 | }) | |
282 | style_overrides.update(self.highlighting_style_overrides) |
|
283 | style_overrides.update(self.highlighting_style_overrides) | |
283 | style = PygmentsStyle.from_defaults(pygments_style_cls=style_cls, |
|
284 | style = PygmentsStyle.from_defaults(pygments_style_cls=style_cls, | |
284 | style_dict=style_overrides) |
|
285 | style_dict=style_overrides) | |
285 |
|
286 | |||
286 | return style |
|
287 | return style | |
287 |
|
288 | |||
288 | def _layout_options(self): |
|
289 | def _layout_options(self): | |
289 | """ |
|
290 | """ | |
290 | Return the current layout option for the current Terminal InteractiveShell |
|
291 | Return the current layout option for the current Terminal InteractiveShell | |
291 | """ |
|
292 | """ | |
292 | return { |
|
293 | return { | |
293 | 'lexer':IPythonPTLexer(), |
|
294 | 'lexer':IPythonPTLexer(), | |
294 | 'reserve_space_for_menu':self.space_for_menu, |
|
295 | 'reserve_space_for_menu':self.space_for_menu, | |
295 | 'get_prompt_tokens':self.get_prompt_tokens, |
|
296 | 'get_prompt_tokens':self.get_prompt_tokens, | |
296 | 'get_continuation_tokens':self.get_continuation_tokens, |
|
297 | 'get_continuation_tokens':self.get_continuation_tokens, | |
297 | 'multiline':True, |
|
298 | 'multiline':True, | |
298 | 'display_completions_in_columns': self.display_completions_in_columns, |
|
299 | 'display_completions_in_columns': self.display_completions_in_columns, | |
299 | } |
|
300 | } | |
300 |
|
301 | |||
301 | def _update_layout(self): |
|
302 | def _update_layout(self): | |
302 | """ |
|
303 | """ | |
303 | Ask for a re computation of the application layout, if for example , |
|
304 | Ask for a re computation of the application layout, if for example , | |
304 | some configuration options have changed. |
|
305 | some configuration options have changed. | |
305 | """ |
|
306 | """ | |
306 | self._app.layout = create_prompt_layout(**self._layout_options()) |
|
307 | self._app.layout = create_prompt_layout(**self._layout_options()) | |
307 |
|
308 | |||
308 | def prompt_for_code(self): |
|
309 | def prompt_for_code(self): | |
309 | document = self.pt_cli.run( |
|
310 | document = self.pt_cli.run( | |
310 | pre_run=self.pre_prompt, reset_current_buffer=True) |
|
311 | pre_run=self.pre_prompt, reset_current_buffer=True) | |
311 | return document.text |
|
312 | return document.text | |
312 |
|
313 | |||
313 | def init_io(self): |
|
314 | def init_io(self): | |
314 | if sys.platform not in {'win32', 'cli'}: |
|
315 | if sys.platform not in {'win32', 'cli'}: | |
315 | return |
|
316 | return | |
316 |
|
317 | |||
317 | import colorama |
|
318 | import colorama | |
318 | colorama.init() |
|
319 | colorama.init() | |
319 |
|
320 | |||
320 | # For some reason we make these wrappers around stdout/stderr. |
|
321 | # For some reason we make these wrappers around stdout/stderr. | |
321 | # For now, we need to reset them so all output gets coloured. |
|
322 | # For now, we need to reset them so all output gets coloured. | |
322 | # https://github.com/ipython/ipython/issues/8669 |
|
323 | # https://github.com/ipython/ipython/issues/8669 | |
323 | from IPython.utils import io |
|
324 | from IPython.utils import io | |
324 | io.stdout = io.IOStream(sys.stdout) |
|
325 | io.stdout = io.IOStream(sys.stdout) | |
325 | io.stderr = io.IOStream(sys.stderr) |
|
326 | io.stderr = io.IOStream(sys.stderr) | |
326 |
|
327 | |||
327 | def init_magics(self): |
|
328 | def init_magics(self): | |
328 | super(TerminalInteractiveShell, self).init_magics() |
|
329 | super(TerminalInteractiveShell, self).init_magics() | |
329 | self.register_magics(TerminalMagics) |
|
330 | self.register_magics(TerminalMagics) | |
330 |
|
331 | |||
331 | def init_alias(self): |
|
332 | def init_alias(self): | |
332 | # The parent class defines aliases that can be safely used with any |
|
333 | # The parent class defines aliases that can be safely used with any | |
333 | # frontend. |
|
334 | # frontend. | |
334 | super(TerminalInteractiveShell, self).init_alias() |
|
335 | super(TerminalInteractiveShell, self).init_alias() | |
335 |
|
336 | |||
336 | # Now define aliases that only make sense on the terminal, because they |
|
337 | # Now define aliases that only make sense on the terminal, because they | |
337 | # need direct access to the console in a way that we can't emulate in |
|
338 | # need direct access to the console in a way that we can't emulate in | |
338 | # GUI or web frontend |
|
339 | # GUI or web frontend | |
339 | if os.name == 'posix': |
|
340 | if os.name == 'posix': | |
340 | for cmd in ['clear', 'more', 'less', 'man']: |
|
341 | for cmd in ['clear', 'more', 'less', 'man']: | |
341 | self.alias_manager.soft_define_alias(cmd, cmd) |
|
342 | self.alias_manager.soft_define_alias(cmd, cmd) | |
342 |
|
343 | |||
343 |
|
344 | |||
344 | def __init__(self, *args, **kwargs): |
|
345 | def __init__(self, *args, **kwargs): | |
345 | super(TerminalInteractiveShell, self).__init__(*args, **kwargs) |
|
346 | super(TerminalInteractiveShell, self).__init__(*args, **kwargs) | |
346 | self.init_prompt_toolkit_cli() |
|
347 | self.init_prompt_toolkit_cli() | |
347 | self.init_term_title() |
|
348 | self.init_term_title() | |
348 | self.keep_running = True |
|
349 | self.keep_running = True | |
349 |
|
350 | |||
350 | def ask_exit(self): |
|
351 | def ask_exit(self): | |
351 | self.keep_running = False |
|
352 | self.keep_running = False | |
352 |
|
353 | |||
353 | rl_next_input = None |
|
354 | rl_next_input = None | |
354 |
|
355 | |||
355 | def pre_prompt(self): |
|
356 | def pre_prompt(self): | |
356 | if self.rl_next_input: |
|
357 | if self.rl_next_input: | |
357 | self.pt_cli.application.buffer.text = cast_unicode_py2(self.rl_next_input) |
|
358 | self.pt_cli.application.buffer.text = cast_unicode_py2(self.rl_next_input) | |
358 | self.rl_next_input = None |
|
359 | self.rl_next_input = None | |
359 |
|
360 | |||
360 | def interact(self): |
|
361 | def interact(self): | |
361 | while self.keep_running: |
|
362 | while self.keep_running: | |
362 | print(self.separate_in, end='') |
|
363 | print(self.separate_in, end='') | |
363 |
|
364 | |||
364 | try: |
|
365 | try: | |
365 | code = self.prompt_for_code() |
|
366 | code = self.prompt_for_code() | |
366 | except EOFError: |
|
367 | except EOFError: | |
367 | if (not self.confirm_exit) \ |
|
368 | if (not self.confirm_exit) \ | |
368 | or self.ask_yes_no('Do you really want to exit ([y]/n)?','y','n'): |
|
369 | or self.ask_yes_no('Do you really want to exit ([y]/n)?','y','n'): | |
369 | self.ask_exit() |
|
370 | self.ask_exit() | |
370 |
|
371 | |||
371 | else: |
|
372 | else: | |
372 | if code: |
|
373 | if code: | |
373 | self.run_cell(code, store_history=True) |
|
374 | self.run_cell(code, store_history=True) | |
374 | if self.autoedit_syntax and self.SyntaxTB.last_syntax_error: |
|
375 | if self.autoedit_syntax and self.SyntaxTB.last_syntax_error: | |
375 | self.edit_syntax_error() |
|
376 | self.edit_syntax_error() | |
376 |
|
377 | |||
377 | def mainloop(self): |
|
378 | def mainloop(self): | |
378 | # An extra layer of protection in case someone mashing Ctrl-C breaks |
|
379 | # An extra layer of protection in case someone mashing Ctrl-C breaks | |
379 | # out of our internal code. |
|
380 | # out of our internal code. | |
380 | while True: |
|
381 | while True: | |
381 | try: |
|
382 | try: | |
382 | self.interact() |
|
383 | self.interact() | |
383 | break |
|
384 | break | |
384 | except KeyboardInterrupt: |
|
385 | except KeyboardInterrupt: | |
385 | print("\nKeyboardInterrupt escaped interact()\n") |
|
386 | print("\nKeyboardInterrupt escaped interact()\n") | |
386 |
|
387 | |||
387 | _inputhook = None |
|
388 | _inputhook = None | |
388 | def inputhook(self, context): |
|
389 | def inputhook(self, context): | |
389 | if self._inputhook is not None: |
|
390 | if self._inputhook is not None: | |
390 | self._inputhook(context) |
|
391 | self._inputhook(context) | |
391 |
|
392 | |||
392 | def enable_gui(self, gui=None): |
|
393 | def enable_gui(self, gui=None): | |
393 | if gui: |
|
394 | if gui: | |
394 | self._inputhook = get_inputhook_func(gui) |
|
395 | self._inputhook = get_inputhook_func(gui) | |
395 | else: |
|
396 | else: | |
396 | self._inputhook = None |
|
397 | self._inputhook = None | |
397 |
|
398 | |||
398 | # Methods to support auto-editing of SyntaxErrors: |
|
399 | # Methods to support auto-editing of SyntaxErrors: | |
399 |
|
400 | |||
400 | def edit_syntax_error(self): |
|
401 | def edit_syntax_error(self): | |
401 | """The bottom half of the syntax error handler called in the main loop. |
|
402 | """The bottom half of the syntax error handler called in the main loop. | |
402 |
|
403 | |||
403 | Loop until syntax error is fixed or user cancels. |
|
404 | Loop until syntax error is fixed or user cancels. | |
404 | """ |
|
405 | """ | |
405 |
|
406 | |||
406 | while self.SyntaxTB.last_syntax_error: |
|
407 | while self.SyntaxTB.last_syntax_error: | |
407 | # copy and clear last_syntax_error |
|
408 | # copy and clear last_syntax_error | |
408 | err = self.SyntaxTB.clear_err_state() |
|
409 | err = self.SyntaxTB.clear_err_state() | |
409 | if not self._should_recompile(err): |
|
410 | if not self._should_recompile(err): | |
410 | return |
|
411 | return | |
411 | try: |
|
412 | try: | |
412 | # may set last_syntax_error again if a SyntaxError is raised |
|
413 | # may set last_syntax_error again if a SyntaxError is raised | |
413 | self.safe_execfile(err.filename, self.user_ns) |
|
414 | self.safe_execfile(err.filename, self.user_ns) | |
414 | except: |
|
415 | except: | |
415 | self.showtraceback() |
|
416 | self.showtraceback() | |
416 | else: |
|
417 | else: | |
417 | try: |
|
418 | try: | |
418 | with open(err.filename) as f: |
|
419 | with open(err.filename) as f: | |
419 | # This should be inside a display_trap block and I |
|
420 | # This should be inside a display_trap block and I | |
420 | # think it is. |
|
421 | # think it is. | |
421 | sys.displayhook(f.read()) |
|
422 | sys.displayhook(f.read()) | |
422 | except: |
|
423 | except: | |
423 | self.showtraceback() |
|
424 | self.showtraceback() | |
424 |
|
425 | |||
425 | def _should_recompile(self, e): |
|
426 | def _should_recompile(self, e): | |
426 | """Utility routine for edit_syntax_error""" |
|
427 | """Utility routine for edit_syntax_error""" | |
427 |
|
428 | |||
428 | if e.filename in ('<ipython console>', '<input>', '<string>', |
|
429 | if e.filename in ('<ipython console>', '<input>', '<string>', | |
429 | '<console>', '<BackgroundJob compilation>', |
|
430 | '<console>', '<BackgroundJob compilation>', | |
430 | None): |
|
431 | None): | |
431 | return False |
|
432 | return False | |
432 | try: |
|
433 | try: | |
433 | if (self.autoedit_syntax and |
|
434 | if (self.autoedit_syntax and | |
434 | not self.ask_yes_no( |
|
435 | not self.ask_yes_no( | |
435 | 'Return to editor to correct syntax error? ' |
|
436 | 'Return to editor to correct syntax error? ' | |
436 | '[Y/n] ', 'y')): |
|
437 | '[Y/n] ', 'y')): | |
437 | return False |
|
438 | return False | |
438 | except EOFError: |
|
439 | except EOFError: | |
439 | return False |
|
440 | return False | |
440 |
|
441 | |||
441 | def int0(x): |
|
442 | def int0(x): | |
442 | try: |
|
443 | try: | |
443 | return int(x) |
|
444 | return int(x) | |
444 | except TypeError: |
|
445 | except TypeError: | |
445 | return 0 |
|
446 | return 0 | |
446 |
|
447 | |||
447 | # always pass integer line and offset values to editor hook |
|
448 | # always pass integer line and offset values to editor hook | |
448 | try: |
|
449 | try: | |
449 | self.hooks.fix_error_editor(e.filename, |
|
450 | self.hooks.fix_error_editor(e.filename, | |
450 | int0(e.lineno), int0(e.offset), |
|
451 | int0(e.lineno), int0(e.offset), | |
451 | e.msg) |
|
452 | e.msg) | |
452 | except TryNext: |
|
453 | except TryNext: | |
453 | warn('Could not open editor') |
|
454 | warn('Could not open editor') | |
454 | return False |
|
455 | return False | |
455 | return True |
|
456 | return True | |
456 |
|
457 | |||
457 | # Run !system commands directly, not through pipes, so terminal programs |
|
458 | # Run !system commands directly, not through pipes, so terminal programs | |
458 | # work correctly. |
|
459 | # work correctly. | |
459 | system = InteractiveShell.system_raw |
|
460 | system = InteractiveShell.system_raw | |
460 |
|
461 | |||
461 |
|
462 | |||
462 | if __name__ == '__main__': |
|
463 | if __name__ == '__main__': | |
463 | TerminalInteractiveShell.instance().interact() |
|
464 | TerminalInteractiveShell.instance().interact() |
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