Mercurial > cpython-lru_cache-weakref
annotate Lib/idlelib/AutoComplete.py @ 78069:a8aa77458e12 3.2
Add c_size_t and c_ssize_t to the ctypes summary table.
| author | Antoine Pitrou <solipsis@pitrou.net> |
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| date | Thu, 12 Jul 2012 20:31:50 +0200 |
| parents | 62030ebb2b01 |
| children | 82fc6ff7aa3e |
| rev | line source |
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1 """AutoComplete.py - An IDLE extension for automatically completing names. |
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2 |
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3 This extension can complete either attribute names of file names. It can pop |
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4 a window with all available names, for the user to select from. |
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5 """ |
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6 import os |
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7 import sys |
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8 import string |
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9 |
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10 from idlelib.configHandler import idleConf |
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11 |
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12 # This string includes all chars that may be in a file name (without a path |
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13 # separator) |
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14 FILENAME_CHARS = string.ascii_letters + string.digits + os.curdir + "._~#$:-" |
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15 # This string includes all chars that may be in an identifier |
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16 ID_CHARS = string.ascii_letters + string.digits + "_" |
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17 |
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18 # These constants represent the two different types of completions |
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19 COMPLETE_ATTRIBUTES, COMPLETE_FILES = range(1, 2+1) |
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20 |
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21 from idlelib import AutoCompleteWindow |
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22 from idlelib.HyperParser import HyperParser |
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| 24 import __main__ | |
| 25 | |
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26 SEPS = os.sep |
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27 if os.altsep: # e.g. '/' on Windows... |
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28 SEPS += os.altsep |
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29 |
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30 class AutoComplete: |
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31 |
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32 menudefs = [ |
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33 ('edit', [ |
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34 ("Show Completions", "<<force-open-completions>>"), |
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35 ]) |
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36 ] |
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37 |
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38 popupwait = idleConf.GetOption("extensions", "AutoComplete", |
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39 "popupwait", type="int", default=0) |
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40 |
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41 def __init__(self, editwin=None): |
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42 self.editwin = editwin |
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43 if editwin is None: # subprocess and test |
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44 return |
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45 self.text = editwin.text |
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46 self.autocompletewindow = None |
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47 |
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48 # id of delayed call, and the index of the text insert when the delayed |
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49 # call was issued. If _delayed_completion_id is None, there is no |
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50 # delayed call. |
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51 self._delayed_completion_id = None |
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52 self._delayed_completion_index = None |
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53 |
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54 def _make_autocomplete_window(self): |
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55 return AutoCompleteWindow.AutoCompleteWindow(self.text) |
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56 |
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57 def _remove_autocomplete_window(self, event=None): |
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58 if self.autocompletewindow: |
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59 self.autocompletewindow.hide_window() |
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60 self.autocompletewindow = None |
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61 |
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62 def force_open_completions_event(self, event): |
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63 """Happens when the user really wants to open a completion list, even |
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64 if a function call is needed. |
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65 """ |
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66 self.open_completions(True, False, True) |
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67 |
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68 def try_open_completions_event(self, event): |
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69 """Happens when it would be nice to open a completion list, but not |
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70 really necessary, for example after an dot, so function |
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71 calls won't be made. |
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72 """ |
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73 lastchar = self.text.get("insert-1c") |
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74 if lastchar == ".": |
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75 self._open_completions_later(False, False, False, |
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76 COMPLETE_ATTRIBUTES) |
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77 elif lastchar in SEPS: |
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78 self._open_completions_later(False, False, False, |
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79 COMPLETE_FILES) |
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80 |
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81 def autocomplete_event(self, event): |
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82 """Happens when the user wants to complete his word, and if necessary, |
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83 open a completion list after that (if there is more than one |
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84 completion) |
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85 """ |
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86 if hasattr(event, "mc_state") and event.mc_state: |
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87 # A modifier was pressed along with the tab, continue as usual. |
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88 return |
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89 if self.autocompletewindow and self.autocompletewindow.is_active(): |
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90 self.autocompletewindow.complete() |
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91 return "break" |
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92 else: |
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93 opened = self.open_completions(False, True, True) |
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94 if opened: |
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95 return "break" |
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96 |
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97 def _open_completions_later(self, *args): |
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98 self._delayed_completion_index = self.text.index("insert") |
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99 if self._delayed_completion_id is not None: |
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100 self.text.after_cancel(self._delayed_completion_id) |
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101 self._delayed_completion_id = \ |
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102 self.text.after(self.popupwait, self._delayed_open_completions, |
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103 *args) |
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104 |
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105 def _delayed_open_completions(self, *args): |
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106 self._delayed_completion_id = None |
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107 if self.text.index("insert") != self._delayed_completion_index: |
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108 return |
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109 self.open_completions(*args) |
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110 |
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111 def open_completions(self, evalfuncs, complete, userWantsWin, mode=None): |
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112 """Find the completions and create the AutoCompleteWindow. |
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113 Return True if successful (no syntax error or so found). |
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114 if complete is True, then if there's nothing to complete and no |
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115 start of completion, won't open completions and return False. |
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116 If mode is given, will open a completion list only in this mode. |
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117 """ |
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118 # Cancel another delayed call, if it exists. |
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119 if self._delayed_completion_id is not None: |
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120 self.text.after_cancel(self._delayed_completion_id) |
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121 self._delayed_completion_id = None |
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122 |
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123 hp = HyperParser(self.editwin, "insert") |
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124 curline = self.text.get("insert linestart", "insert") |
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125 i = j = len(curline) |
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126 if hp.is_in_string() and (not mode or mode==COMPLETE_FILES): |
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127 # Find the beginning of the string |
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128 # fetch_completions will look at the file system to determine whether the |
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129 # string value constitutes an actual file name |
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130 # XXX could consider raw strings here and unescape the string value if it's |
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131 # not raw. |
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132 self._remove_autocomplete_window() |
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133 mode = COMPLETE_FILES |
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134 # Find last separator or string start |
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135 while i and curline[i-1] not in "'\"" + SEPS: |
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136 i -= 1 |
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137 comp_start = curline[i:j] |
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138 j = i |
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139 # Find string start |
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140 while i and curline[i-1] not in "'\"": |
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141 i -= 1 |
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142 comp_what = curline[i:j] |
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143 elif hp.is_in_code() and (not mode or mode==COMPLETE_ATTRIBUTES): |
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144 self._remove_autocomplete_window() |
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145 mode = COMPLETE_ATTRIBUTES |
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146 while i and (curline[i-1] in ID_CHARS or ord(curline[i-1]) > 127): |
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147 i -= 1 |
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148 comp_start = curline[i:j] |
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149 if i and curline[i-1] == '.': |
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150 hp.set_index("insert-%dc" % (len(curline)-(i-1))) |
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151 comp_what = hp.get_expression() |
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152 if not comp_what or \ |
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153 (not evalfuncs and comp_what.find('(') != -1): |
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154 return |
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155 else: |
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156 comp_what = "" |
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157 else: |
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158 return |
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159 |
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160 if complete and not comp_what and not comp_start: |
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161 return |
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162 comp_lists = self.fetch_completions(comp_what, mode) |
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163 if not comp_lists[0]: |
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164 return |
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165 self.autocompletewindow = self._make_autocomplete_window() |
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166 self.autocompletewindow.show_window(comp_lists, |
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167 "insert-%dc" % len(comp_start), |
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168 complete, |
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169 mode, |
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170 userWantsWin) |
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171 return True |
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172 |
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173 def fetch_completions(self, what, mode): |
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174 """Return a pair of lists of completions for something. The first list |
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175 is a sublist of the second. Both are sorted. |
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176 |
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177 If there is a Python subprocess, get the comp. list there. Otherwise, |
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178 either fetch_completions() is running in the subprocess itself or it |
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179 was called in an IDLE EditorWindow before any script had been run. |
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180 |
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181 The subprocess environment is that of the most recently run script. If |
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182 two unrelated modules are being edited some calltips in the current |
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183 module may be inoperative if the module was not the last to run. |
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184 """ |
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185 try: |
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186 rpcclt = self.editwin.flist.pyshell.interp.rpcclt |
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187 except: |
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188 rpcclt = None |
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189 if rpcclt: |
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190 return rpcclt.remotecall("exec", "get_the_completion_list", |
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191 (what, mode), {}) |
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192 else: |
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193 if mode == COMPLETE_ATTRIBUTES: |
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194 if what == "": |
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195 namespace = __main__.__dict__.copy() |
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196 namespace.update(__main__.__builtins__.__dict__) |
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197 bigl = eval("dir()", namespace) |
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198 bigl.sort() |
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199 if "__all__" in bigl: |
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200 smalll = sorted(eval("__all__", namespace)) |
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201 else: |
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203 else: |
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204 try: |
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205 entity = self.get_entity(what) |
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206 bigl = dir(entity) |
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207 bigl.sort() |
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208 if "__all__" in bigl: |
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209 smalll = sorted(entity.__all__) |
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210 else: |
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212 except: |
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213 return [], [] |
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214 |
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215 elif mode == COMPLETE_FILES: |
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216 if what == "": |
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217 what = "." |
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218 try: |
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219 expandedpath = os.path.expanduser(what) |
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220 bigl = os.listdir(expandedpath) |
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221 bigl.sort() |
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223 except OSError: |
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224 return [], [] |
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225 |
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226 if not smalll: |
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227 smalll = bigl |
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228 return smalll, bigl |
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229 |
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230 def get_entity(self, name): |
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231 """Lookup name in a namespace spanning sys.modules and __main.dict__""" |
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232 namespace = sys.modules.copy() |
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233 namespace.update(__main__.__dict__) |
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234 return eval(name, namespace) |