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128 lines
3.8 KiB
128 lines
3.8 KiB
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import os
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import re
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from difflib import SequenceMatcher
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from autojump_utils import is_python3
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from autojump_utils import last
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if is_python3(): # pragma: no cover
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ifilter = filter
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imap = map
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os.getcwdu = os.getcwd
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else:
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from itertools import ifilter
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from itertools import imap
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def match_anywhere(needles, haystack, ignore_case=False):
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"""
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Matches needles anywhere in the path as long as they're in the same (but
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not necessary consecutive) order.
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For example:
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needles = ['foo', 'baz']
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regex needle = r'.*foo.*baz.*'
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haystack = [
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(path='/foo/bar/baz', weight=10),
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(path='/baz/foo/bar', weight=10),
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(path='/foo/baz', weight=10),
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]
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result = [
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(path='/moo/foo/baz', weight=10),
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(path='/foo/baz', weight=10),
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]
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"""
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regex_needle = '.*' + '.*'.join(imap(re.escape, needles)) + '.*'
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regex_flags = re.IGNORECASE | re.UNICODE if ignore_case else re.UNICODE
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found = lambda haystack: re.search(
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regex_needle,
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haystack.path,
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flags=regex_flags,
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)
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return ifilter(found, haystack)
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def match_consecutive(needles, haystack, ignore_case=False):
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"""
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Matches consecutive needles at the end of a path.
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For example:
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needles = ['foo', 'baz']
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haystack = [
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(path='/foo/bar/baz', weight=10),
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(path='/foo/baz/moo', weight=10),
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(path='/moo/foo/baz', weight=10),
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(path='/foo/baz', weight=10),
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]
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# We can't actually use re.compile because of re.UNICODE
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regex_needle = re.compile(r'''
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foo # needle #1
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[^/]* # all characters except os.sep zero or more times
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/ # os.sep
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[^/]* # all characters except os.sep zero or more times
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baz # needle #2
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[^/]* # all characters except os.sep zero or more times
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$ # end of string
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''')
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result = [
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(path='/moo/foo/baz', weight=10),
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(path='/foo/baz', weight=10),
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]
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"""
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regex_no_sep = '[^' + os.sep + ']*'
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regex_no_sep_end = regex_no_sep + '$'
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regex_one_sep = regex_no_sep + os.sep + regex_no_sep
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regex_needle = regex_one_sep.join(imap(re.escape, needles)) + regex_no_sep_end
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regex_flags = re.IGNORECASE | re.UNICODE if ignore_case else re.UNICODE
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found = lambda entry: re.search(
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regex_needle,
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entry.path,
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flags=regex_flags,
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)
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return ifilter(found, haystack)
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def match_fuzzy(needles, haystack, ignore_case=False, threshold=0.6):
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"""
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Performs an approximate match with the last needle against the end of
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every path past an acceptable threshold.
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For example:
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needles = ['foo', 'bar']
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haystack = [
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(path='/foo/bar/baz', weight=11),
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(path='/foo/baz/moo', weight=10),
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(path='/moo/foo/baz', weight=10),
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(path='/foo/baz', weight=10),
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(path='/foo/bar', weight=10),
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]
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result = [
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(path='/foo/bar/baz', weight=11),
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(path='/moo/foo/baz', weight=10),
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(path='/foo/baz', weight=10),
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(path='/foo/bar', weight=10),
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]
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This is a weak heuristic and used as a last resort to find matches.
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"""
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end_dir = lambda path: last(os.path.split(path))
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if ignore_case:
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needle = last(needles).lower()
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match_percent = lambda entry: SequenceMatcher(
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a=needle,
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b=end_dir(entry.path.lower())).ratio()
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else:
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needle = last(needles)
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match_percent = lambda entry: SequenceMatcher(
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a=needle,
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b=end_dir(entry.path)).ratio()
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meets_threshold = lambda entry: match_percent(entry) >= threshold
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return ifilter(meets_threshold, haystack)
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