# The MIT License # # Copyright (c) 2009-2012 the bpython authors. # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in # all copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN # THE SOFTWARE. # import __builtin__ import rlcompleter import re from bpython import inspection # Needed for special handling of __abstractmethods__ # abc only exists since 2.6, so check both that it exists and that it's # the one we're expecting try: import abc abc.ABCMeta has_abc = True except (ImportError, AttributeError): has_abc = False # Autocomplete modes SIMPLE = 'simple' SUBSTRING = 'substring' FUZZY = 'fuzzy' class Autocomplete(rlcompleter.Completer): """ """ def __init__(self, namespace = None, config = None): rlcompleter.Completer.__init__(self, namespace) self.locals = namespace if hasattr(config, 'autocomplete_mode'): self.autocomplete_mode = config.autocomplete_mode else: self.autocomplete_mode = SUBSTRING def attr_matches(self, text): """Taken from rlcompleter.py and bent to my will. """ # Gna, Py 2.6's rlcompleter searches for __call__ inside the # instance instead of the type, so we monkeypatch to prevent # side-effects (__getattr__/__getattribute__) m = re.match(r"(\w+(\.\w+)*)\.(\w*)", text) if not m: return [] expr, attr = m.group(1, 3) if expr.isdigit(): # Special case: float literal, using attrs here will result in # a SyntaxError return [] obj = eval(expr, self.locals) with inspection.AttrCleaner(obj): matches = self.attr_lookup(obj, expr, attr) return matches def attr_lookup(self, obj, expr, attr): """Second half of original attr_matches method factored out so it can be wrapped in a safe try/finally block in case anything bad happens to restore the original __getattribute__ method.""" words = dir(obj) if hasattr(obj, '__class__'): words.append('__class__') words = words + rlcompleter.get_class_members(obj.__class__) if has_abc and not isinstance(obj.__class__, abc.ABCMeta): try: words.remove('__abstractmethods__') except ValueError: pass matches = [] n = len(attr) for word in words: if self.method_match(word, n, attr) and word != "__builtins__": matches.append("%s.%s" % (expr, word)) return matches def _callable_postfix(self, value, word): """rlcompleter's _callable_postfix done right.""" with inspection.AttrCleaner(value): if inspection.is_callable(value): word += '(' return word def global_matches(self, text): """Compute matches when text is a simple name. Return a list of all keywords, built-in functions and names currently defined in self.namespace that match. """ hash = {} n = len(text) import keyword for word in keyword.kwlist: if self.method_match(word, n, text): hash[word] = 1 for nspace in [__builtin__.__dict__, self.namespace]: for word, val in nspace.items(): if self.method_match(word, len(text), text) and word != "__builtins__": hash[self._callable_postfix(val, word)] = 1 matches = hash.keys() matches.sort() return matches def method_match(self, word, size, text): if self.autocomplete_mode == SIMPLE: return word[:size] == text elif self.autocomplete_mode == SUBSTRING: s = r'.*%s.*' % text return re.search(s, word) else: s = r'.*%s.*' % '.*'.join(list(text)) return re.search(s, word)