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1 | 1 | """ Greedy completer extension for IPython |
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2 | 2 | |
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3 | 3 | Normal tab completer refuses to evaluate nonsafe stuff. This will evaluate |
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4 | 4 | everything, so you need to consider the consequences of pressing tab |
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5 | 5 | yourself! |
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6 | 6 | |
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7 | 7 | Note that this extension simplifies readline interaction by setting |
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8 | 8 | only whitespace as completer delimiter. If this works well, we will |
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9 | 9 | do the same in default completer. |
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10 | 10 | |
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11 | 11 | """ |
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12 | 12 | from IPython import generics,ipapi |
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13 | 13 | from IPython.genutils import dir2 |
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14 | 14 | |
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15 | 15 | def attr_matches(self, text): |
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16 | 16 | """Compute matches when text contains a dot. |
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17 | 17 | |
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18 | 18 | MONKEYPATCHED VERSION (ipy_greedycompleter.py) |
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19 | 19 | |
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20 | 20 | Assuming the text is of the form NAME.NAME....[NAME], and is |
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21 | 21 | evaluatable in self.namespace or self.global_namespace, it will be |
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22 | 22 | evaluated and its attributes (as revealed by dir()) are used as |
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23 | 23 | possible completions. (For class instances, class members are are |
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24 | 24 | also considered.) |
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25 | 25 | |
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26 | 26 | WARNING: this can still invoke arbitrary C code, if an object |
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27 | 27 | with a __getattr__ hook is evaluated. |
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28 | 28 | |
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29 | 29 | """ |
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30 | 30 | import re |
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31 | 31 | |
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32 | 32 | force_complete = 1 |
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33 | 33 | # Another option, seems to work great. Catches things like ''.<tab> |
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34 | 34 | m = re.match(r"(\S+(\.\w+)*)\.(\w*)$", text) |
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35 | 35 | |
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36 | 36 | if m: |
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37 | 37 | expr, attr = m.group(1, 3) |
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38 | 38 | else: |
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39 | 39 | # force match - eval anything that ends with colon |
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40 | 40 | if not force_complete: |
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41 | 41 | return [] |
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42 | 42 | |
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43 | 43 | m2 = re.match(r"(.+)\.(\w*)$", self.lbuf) |
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44 | 44 | if not m2: |
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45 | 45 | return [] |
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46 | 46 | expr, attr = m2.group(1,2) |
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47 | 47 | |
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48 | 48 | |
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49 | 49 | try: |
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50 | 50 | obj = eval(expr, self.namespace) |
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51 | 51 | except: |
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52 | 52 | try: |
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53 | 53 | obj = eval(expr, self.global_namespace) |
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54 | 54 | except: |
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55 | 55 | return [] |
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56 | 56 | |
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57 | 57 | words = dir2(obj) |
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58 | 58 | |
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59 | 59 | try: |
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60 | 60 | words = generics.complete_object(obj, words) |
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61 | 61 | except ipapi.TryNext: |
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62 | 62 | pass |
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63 | 63 | # Build match list to return |
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64 | 64 | n = len(attr) |
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65 | 65 | res = ["%s.%s" % (expr, w) for w in words if w[:n] == attr ] |
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66 | 66 | return res |
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67 | 67 | |
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68 | 68 | def main(): |
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69 | import readline | |
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69 | import IPython.rlineimpl as readline | |
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70 | 70 | readline.set_completer_delims(" \n\t") |
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71 | 71 | # monkeypatch - the code will be folded to normal completer later on |
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72 | 72 | import IPython.completer |
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73 | 73 | IPython.completer.Completer.attr_matches = attr_matches |
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74 | 74 | |
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75 | 75 | main() No newline at end of file |
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