Repository navigation
Expand file tree
/
Copy pathline.py
More file actions
243 lines (187 loc) · 7.84 KB
/
Copy pathline.py
File metadata and controls
243 lines (187 loc) · 7.84 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
"""Extracting and changing portions of the current line
All functions take cursor offset from the beginning of the line and the line of
Python code, and return None, or a tuple of the start index, end index, and the
word."""
from itertools import chain
from collections import namedtuple
from typing import Optional
from .lazyre import LazyReCompile
LinePart = namedtuple("LinePart", ["start", "stop", "word"])
current_word_re = LazyReCompile(r"(?<![)\]\w_.])" r"([\w_][\w0-9._]*[(]?)")
def current_word(cursor_offset: int, line: str) -> Optional[LinePart]:
"""the object.attribute.attribute just before or under the cursor"""
pos = cursor_offset
start = pos
end = pos
word = None
for m in current_word_re.finditer(line):
if m.start(1) < pos and m.end(1) >= pos:
start = m.start(1)
end = m.end(1)
word = m.group(1)
if word is None:
return None
return LinePart(start, end, word)
current_dict_key_re = LazyReCompile(r"""[\w_][\w0-9._]*\[([\w0-9._(), '"]*)""")
def current_dict_key(cursor_offset: int, line: str) -> Optional[LinePart]:
"""If in dictionary completion, return the current key"""
for m in current_dict_key_re.finditer(line):
if m.start(1) <= cursor_offset and m.end(1) >= cursor_offset:
return LinePart(m.start(1), m.end(1), m.group(1))
return None
current_dict_re = LazyReCompile(r"""([\w_][\w0-9._]*)\[([\w0-9._(), '"]*)""")
def current_dict(cursor_offset: int, line: str) -> Optional[LinePart]:
"""If in dictionary completion, return the dict that should be used"""
for m in current_dict_re.finditer(line):
if m.start(2) <= cursor_offset and m.end(2) >= cursor_offset:
return LinePart(m.start(1), m.end(1), m.group(1))
return None
current_string_re = LazyReCompile(
'''(?P<open>(?:""")|"|(?:''\')|')(?:((?P<closed>.+?)(?P=open))|'''
"""(?P<unclosed>.+))"""
)
def current_string(cursor_offset: int, line: str) -> Optional[LinePart]:
"""If inside a string of nonzero length, return the string (excluding
quotes)
Weaker than bpython.Repl's current_string, because that checks that a
string is a string based on previous lines in the buffer."""
for m in current_string_re.finditer(line):
i = 3 if m.group(3) else 4
if m.start(i) <= cursor_offset and m.end(i) >= cursor_offset:
return LinePart(m.start(i), m.end(i), m.group(i))
return None
current_object_re = LazyReCompile(r"([\w_][\w0-9_]*)[.]")
def current_object(cursor_offset: int, line: str) -> Optional[LinePart]:
"""If in attribute completion, the object on which attribute should be
looked up."""
match = current_word(cursor_offset, line)
if match is None:
return None
start, end, word = match
s = ""
for m in current_object_re.finditer(word):
if m.end(1) + start < cursor_offset:
if s:
s += "."
s += m.group(1)
if not s:
return None
return LinePart(start, start + len(s), s)
current_object_attribute_re = LazyReCompile(r"([\w_][\w0-9_]*)[.]?")
def current_object_attribute(
cursor_offset: int, line: str
) -> Optional[LinePart]:
"""If in attribute completion, the attribute being completed"""
# TODO replace with more general current_expression_attribute
match = current_word(cursor_offset, line)
if match is None:
return None
start, end, word = match
matches = current_object_attribute_re.finditer(word)
next(matches)
for m in matches:
if (
m.start(1) + start <= cursor_offset
and m.end(1) + start >= cursor_offset
):
return LinePart(m.start(1) + start, m.end(1) + start, m.group(1))
return None
current_from_import_from_re = LazyReCompile(
r"from +([\w0-9_.]*)(?:\s+import\s+([\w0-9_]+[,]?\s*)+)*"
)
def current_from_import_from(
cursor_offset: int, line: str
) -> Optional[LinePart]:
"""If in from import completion, the word after from
returns None if cursor not in or just after one of the two interesting
parts of an import: from (module) import (name1, name2)
"""
# TODO allow for as's
for m in current_from_import_from_re.finditer(line):
if (m.start(1) < cursor_offset and m.end(1) >= cursor_offset) or (
m.start(2) < cursor_offset and m.end(2) >= cursor_offset
):
return LinePart(m.start(1), m.end(1), m.group(1))
return None
current_from_import_import_re_1 = LazyReCompile(r"from\s+([\w0-9_.]*)\s+import")
current_from_import_import_re_2 = LazyReCompile(r"([\w0-9_]+)")
current_from_import_import_re_3 = LazyReCompile(r", *([\w0-9_]*)")
def current_from_import_import(
cursor_offset: int, line: str
) -> Optional[LinePart]:
"""If in from import completion, the word after import being completed
returns None if cursor not in or just after one of these words
"""
baseline = current_from_import_import_re_1.search(line)
if baseline is None:
return None
match1 = current_from_import_import_re_2.search(line[baseline.end() :])
if match1 is None:
return None
for m in chain(
(match1,),
current_from_import_import_re_3.finditer(line[baseline.end() :]),
):
start = baseline.end() + m.start(1)
end = baseline.end() + m.end(1)
if start < cursor_offset and end >= cursor_offset:
return LinePart(start, end, m.group(1))
return None
current_import_re_1 = LazyReCompile(r"import")
current_import_re_2 = LazyReCompile(r"([\w0-9_.]+)")
current_import_re_3 = LazyReCompile(r"[,][ ]*([\w0-9_.]*)")
def current_import(cursor_offset: int, line: str) -> Optional[LinePart]:
# TODO allow for multiple as's
baseline = current_import_re_1.search(line)
if baseline is None:
return None
match1 = current_import_re_2.search(line[baseline.end() :])
if match1 is None:
return None
for m in chain(
(match1,), current_import_re_3.finditer(line[baseline.end() :])
):
start = baseline.end() + m.start(1)
end = baseline.end() + m.end(1)
if start < cursor_offset and end >= cursor_offset:
return LinePart(start, end, m.group(1))
return None
current_method_definition_name_re = LazyReCompile(r"def\s+([a-zA-Z_][\w]*)")
def current_method_definition_name(
cursor_offset: int, line: str
) -> Optional[LinePart]:
"""The name of a method being defined"""
for m in current_method_definition_name_re.finditer(line):
if m.start(1) <= cursor_offset and m.end(1) >= cursor_offset:
return LinePart(m.start(1), m.end(1), m.group(1))
return None
current_single_word_re = LazyReCompile(r"(?<![.])\b([a-zA-Z_][\w]*)")
def current_single_word(cursor_offset: int, line: str) -> Optional[LinePart]:
"""the un-dotted word just before or under the cursor"""
for m in current_single_word_re.finditer(line):
if m.start(1) <= cursor_offset and m.end(1) >= cursor_offset:
return LinePart(m.start(1), m.end(1), m.group(1))
return None
def current_dotted_attribute(
cursor_offset: int, line: str
) -> Optional[LinePart]:
"""The dotted attribute-object pair before the cursor"""
match = current_word(cursor_offset, line)
if match is None:
return None
start, end, word = match
if "." in word[1:]:
return LinePart(start, end, word)
return None
current_expression_attribute_re = LazyReCompile(
r"[.]\s*((?:[\w_][\w0-9_]*)|(?:))"
)
def current_expression_attribute(
cursor_offset: int, line: str
) -> Optional[LinePart]:
"""If after a dot, the attribute being completed"""
# TODO replace with more general current_expression_attribute
for m in current_expression_attribute_re.finditer(line):
if m.start(1) <= cursor_offset and m.end(1) >= cursor_offset:
return LinePart(m.start(1), m.end(1), m.group(1))
return None