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
|
# ====================================================================
# Copyright (c) 2004-2010 Open Source Applications Foundation.
#
# 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.
# ====================================================================
#
from icu import *
def processCollator(options):
if options.rules is not None:
rules = unicode(options.rules, 'unicode-escape')
collator = RuleBasedCollator(rules, Collator.TERTIARY,
UCollAttributeValue.OFF)
else:
collator = Collator.createInstance(Locale(options.locale))
if options.norm:
collator.setAttribute(UCollAttribute.NORMALIZATION_MODE,
UCollAttributeValue.ON)
if options.french:
collator.setAttribute(UCollAttribute.FRENCH_COLLATION,
UCollAttributeValue.ON)
if options.lower:
collator.setAttribute(UCollAttribute.CASE_FIRST,
UCollAttributeValue.LOWER_FIRST)
if options.upper:
collator.setAttribute(UCollAttribute.CASE_FIRST,
UCollAttributeValue.UPPER_FIRST)
if options.case:
collator.setAttribute(UCollAttribute.CASE_LEVEL,
UCollAttributeValue.ON)
if options.shifted:
collator.setAttribute(UCollAttribute.ALTERNATE_HANDLING,
UCollAttributeValue.SHIFTED)
if options.level == 1:
collator.setAttribute(UCollAttribute.STRENGTH,
UCollAttributeValue.PRIMARY)
elif options.level == 2:
collator.setAttribute(UCollAttribute.STRENGTH,
UCollAttributeValue.SECONDARY)
elif options.level == 3:
collator.setAttribute(UCollAttribute.STRENGTH,
UCollAttributeValue.TERTIARY)
elif options.level == 4:
collator.setAttribute(UCollAttribute.STRENGTH,
UCollAttributeValue.QUATERNARY)
elif options.level == 5:
collator.setAttribute(UCollAttribute.STRENGTH,
UCollAttributeValue.IDENTICAL)
else:
raise ValueError, "--level must be between 1 and 5"
return collator
def processStringSearch(options, collator):
source = unicode(options.source, "unicode-escape")
pattern = unicode(options.pattern, "unicode-escape")
search = StringSearch(pattern, source, collator)
if options.overlap:
search.setAttribute(USearchAttribute.OVERLAP,
USearchAttributeValue.ON)
if options.canonical:
search.setAttribute(USearchAttribute.CANONICAL_MATCH,
USearchAttributeValue.ON)
return search
def findPattern(search):
found = False
for offset in search:
print("Pattern found at offset", offset, "size", search.getMatchedLength())
found = True
if not found:
print("Pattern not found in source")
if __name__ == "__main__":
from optparse import OptionParser
parser = OptionParser(usage='''
strsrch [options*] --source source_string --pattern pattern_string
Example:
python strsrch.py --rules \\u0026b\\u003ca
--source a\\u0020b\\u0020bc --pattern b
The format \\uXXXX is supported for the rules and comparison strings''')
parser.add_option('-l', "--locale", dest='locale', default='en_US',
help="ICU locale to use. Default is en_US")
parser.add_option('-r', "--rules", dest='rules', default=None,
help="Collation rules file (overrides locale)")
parser.add_option('-f', "--french", dest='french', default=False,
action="store_true", help="French accent ordering")
parser.add_option('-n', "--norm", dest='norm', default=False,
action="store_true", help="Normalizing mode on")
parser.add_option('-s', "--shifted", dest='shifted', default=False,
action="store_true", help="Shifted mode")
parser.add_option('-L', "--lower", dest='lower', default=False,
action="store_true", help="Lower case first")
parser.add_option('-U', "--upper", dest='upper', default=False,
action="store_true", help="Upper case first")
parser.add_option('-C', "--case", dest='case', default=False,
action="store_true", help="Enable separate case level")
parser.add_option('-S', "--sort", dest='level', default='1',
help="Sort level, 1 to 5, for Primary, Secondary, Tertiary, Quaternary, Identical")
parser.add_option('-u', "--source", dest='source',
default="International Components for Unicode",
help="Source string")
parser.add_option('-p', "--pattern", dest='pattern',
default="Unicode",
help="Pattern string to look for in source")
parser.add_option('-o', "--overlap", dest='overlap', default=False,
action="store_true", help="Enable searching to be done on overlapping patterns")
parser.add_option('-c', "--canonical", dest='canonical', default=False,
action="store_true", help="Enable searching to be done matching canonical equivalent patterns")
options, args = parser.parse_args()
options.level = int(options.level)
collator = processCollator(options)
search = processStringSearch(options, collator)
print("Finding pattern", options.pattern, "in source", options.source)
findPattern(search)
del search
del collator
|
