Python code coverage for Lib/idlelib/autoexpand.py

#	count	content
1	n/a	'''Complete the current word before the cursor with words in the editor.
2	n/a
3	n/a	Each menu selection or shortcut key selection replaces the word with a
4	n/a	different word with the same prefix. The search for matches begins
5	n/a	before the target and moves toward the top of the editor. It then starts
6	n/a	after the cursor and moves down. It then returns to the original word and
7	n/a	the cycle starts again.
8	n/a
9	n/a	Changing the current text line or leaving the cursor in a different
10	n/a	place before requesting the next selection causes AutoExpand to reset
11	n/a	its state.
12	n/a
13	n/a	This is an extension file and there is only one instance of AutoExpand.
14	n/a	'''
15	n/a	import re
16	n/a	import string
17	n/a
18	n/a	###$ event <<expand-word>>
19	n/a	###$ win <Alt-slash>
20	n/a	###$ unix <Alt-slash>
21	n/a
22	n/a	class AutoExpand:
23	n/a
24	n/a	menudefs = [
25	n/a	('edit', [
26	n/a	('E_xpand Word', '<<expand-word>>'),
27	n/a	]),
28	n/a	]
29	n/a
30	n/a	wordchars = string.ascii_letters + string.digits + "_"
31	n/a
32	n/a	def __init__(self, editwin):
33	n/a	self.text = editwin.text
34	n/a	self.bell = self.text.bell
35	n/a	self.state = None
36	n/a
37	n/a	def expand_word_event(self, event):
38	n/a	"Replace the current word with the next expansion."
39	n/a	curinsert = self.text.index("insert")
40	n/a	curline = self.text.get("insert linestart", "insert lineend")
41	n/a	if not self.state:
42	n/a	words = self.getwords()
43	n/a	index = 0
44	n/a	else:
45	n/a	words, index, insert, line = self.state
46	n/a	if insert != curinsert or line != curline:
47	n/a	words = self.getwords()
48	n/a	index = 0
49	n/a	if not words:
50	n/a	self.bell()
51	n/a	return "break"
52	n/a	word = self.getprevword()
53	n/a	self.text.delete("insert - %d chars" % len(word), "insert")
54	n/a	newword = words[index]
55	n/a	index = (index + 1) % len(words)
56	n/a	if index == 0:
57	n/a	self.bell() # Warn we cycled around
58	n/a	self.text.insert("insert", newword)
59	n/a	curinsert = self.text.index("insert")
60	n/a	curline = self.text.get("insert linestart", "insert lineend")
61	n/a	self.state = words, index, curinsert, curline
62	n/a	return "break"
63	n/a
64	n/a	def getwords(self):
65	n/a	"Return a list of words that match the prefix before the cursor."
66	n/a	word = self.getprevword()
67	n/a	if not word:
68	n/a	return []
69	n/a	before = self.text.get("1.0", "insert wordstart")
70	n/a	wbefore = re.findall(r"\b" + word + r"\w+\b", before)
71	n/a	del before
72	n/a	after = self.text.get("insert wordend", "end")
73	n/a	wafter = re.findall(r"\b" + word + r"\w+\b", after)
74	n/a	del after
75	n/a	if not wbefore and not wafter:
76	n/a	return []
77	n/a	words = []
78	n/a	dict = {}
79	n/a	# search backwards through words before
80	n/a	wbefore.reverse()
81	n/a	for w in wbefore:
82	n/a	if dict.get(w):
83	n/a	continue
84	n/a	words.append(w)
85	n/a	dict[w] = w
86	n/a	# search onwards through words after
87	n/a	for w in wafter:
88	n/a	if dict.get(w):
89	n/a	continue
90	n/a	words.append(w)
91	n/a	dict[w] = w
92	n/a	words.append(word)
93	n/a	return words
94	n/a
95	n/a	def getprevword(self):
96	n/a	"Return the word prefix before the cursor."
97	n/a	line = self.text.get("insert linestart", "insert")
98	n/a	i = len(line)
99	n/a	while i > 0 and line[i-1] in self.wordchars:
100	n/a	i = i-1
101	n/a	return line[i:]
102	n/a
103	n/a	if __name__ == '__main__':
104	n/a	import unittest
105	n/a	unittest.main('idlelib.idle_test.test_autoexpand', verbosity=2)