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annotate .elisp/pycomplete.py @ 77:45d7441d0cf2

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Modularize .emacs
author Augie Fackler <durin42@gmail.com>
date Thu, 09 Apr 2009 13:39:20 -0500
parents b5d75594b356
children 014e745b2d04
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1
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2 """
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3 Python dot expression completion using Pymacs.
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4
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5 This almost certainly needs work, but if you add
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6
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7 (require 'pycomplete)
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8
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9 to your .xemacs/init.el file (untried w/ GNU Emacs so far) and have Pymacs
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10 installed, when you hit M-TAB it will try to complete the dot expression
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11 before point. For example, given this import at the top of the file:
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12
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13 import time
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14
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15 typing "time.cl" then hitting M-TAB should complete "time.clock".
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16
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17 This is unlikely to be done the way Emacs completion ought to be done, but
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18 it's a start. Perhaps someone with more Emacs mojo can take this stuff and
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19 do it right.
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20
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21 See pycomplete.el for the Emacs Lisp side of things.
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22 """
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23
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24 import sys
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25 import os.path
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26
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27 try:
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28 x = set
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29 except NameError:
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30 from sets import Set as set
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31 else:
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32 del x
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33
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34 def get_all_completions(s, imports=None):
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35 """Return contextual completion of s (string of >= zero chars).
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36
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37 If given, imports is a list of import statements to be executed first.
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38 """
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39 locald = {}
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40 if imports is not None:
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41 for stmt in imports:
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42 try:
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43 exec stmt in globals(), locald
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44 except TypeError:
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45 raise TypeError, "invalid type: %s" % stmt
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46
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47 dots = s.split(".")
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48 if not s or len(dots) == 1:
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49 keys = set()
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50 keys.update(locald.keys())
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51 keys.update(globals().keys())
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52 import __builtin__
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53 keys.update(dir(__builtin__))
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54 keys = list(keys)
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55 keys.sort()
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56 if s:
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57 return [k for k in keys if k.startswith(s)]
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58 else:
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59 return keys
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60
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61 sym = None
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62 for i in range(1, len(dots)):
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63 s = ".".join(dots[:i])
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64 try:
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65 sym = eval(s, globals(), locald)
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66 except NameError:
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67 try:
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68 sym = __import__(s, globals(), locald, [])
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69 except ImportError:
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70 return []
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71 if sym is not None:
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72 s = dots[-1]
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73 return [k for k in dir(sym) if k.startswith(s)]
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74
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75 def pycomplete(s, imports=None):
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76 completions = get_all_completions(s, imports)
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77 dots = s.split(".")
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78 return os.path.commonprefix([k[len(dots[-1]):] for k in completions])
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79
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80 if __name__ == "__main__":
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81 print "<empty> ->", pycomplete("")
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82 print "sys.get ->", pycomplete("sys.get")
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83 print "sy ->", pycomplete("sy")
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84 print "sy (sys in context) ->", pycomplete("sy", imports=["import sys"])
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85 print "foo. ->", pycomplete("foo.")
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86 print "Enc (email * imported) ->",
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87 print pycomplete("Enc", imports=["from email import *"])
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88 print "E (email * imported) ->",
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89 print pycomplete("E", imports=["from email import *"])
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90
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91 print "Enc ->", pycomplete("Enc")
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92 print "E ->", pycomplete("E")
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93
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94 # Local Variables :
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95 # pymacs-auto-reload : t
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96 # End :