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12 """Internal support module for sre"""
13
14
15
16 MAGIC = 20031017
17
18
19
20 MAXREPEAT = 65535
21
22
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24
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29
30 FAILURE = "failure"
31 SUCCESS = "success"
32
33 ANY = "any"
34 ANY_ALL = "any_all"
35 ASSERT = "assert"
36 ASSERT_NOT = "assert_not"
37 AT = "at"
38 BIGCHARSET = "bigcharset"
39 BRANCH = "branch"
40 CALL = "call"
41 CATEGORY = "category"
42 CHARSET = "charset"
43 GROUPREF = "groupref"
44 GROUPREF_IGNORE = "groupref_ignore"
45 GROUPREF_EXISTS = "groupref_exists"
46 IN = "in"
47 IN_IGNORE = "in_ignore"
48 INFO = "info"
49 JUMP = "jump"
50 LITERAL = "literal"
51 LITERAL_IGNORE = "literal_ignore"
52 MARK = "mark"
53 MAX_REPEAT = "max_repeat"
54 MAX_UNTIL = "max_until"
55 MIN_REPEAT = "min_repeat"
56 MIN_UNTIL = "min_until"
57 NEGATE = "negate"
58 NOT_LITERAL = "not_literal"
59 NOT_LITERAL_IGNORE = "not_literal_ignore"
60 RANGE = "range"
61 REPEAT = "repeat"
62 REPEAT_ONE = "repeat_one"
63 SUBPATTERN = "subpattern"
64 MIN_REPEAT_ONE = "min_repeat_one"
65
66
67 AT_BEGINNING = "at_beginning"
68 AT_BEGINNING_LINE = "at_beginning_line"
69 AT_BEGINNING_STRING = "at_beginning_string"
70 AT_BOUNDARY = "at_boundary"
71 AT_NON_BOUNDARY = "at_non_boundary"
72 AT_END = "at_end"
73 AT_END_LINE = "at_end_line"
74 AT_END_STRING = "at_end_string"
75 AT_LOC_BOUNDARY = "at_loc_boundary"
76 AT_LOC_NON_BOUNDARY = "at_loc_non_boundary"
77 AT_UNI_BOUNDARY = "at_uni_boundary"
78 AT_UNI_NON_BOUNDARY = "at_uni_non_boundary"
79
80
81 CATEGORY_DIGIT = "category_digit"
82 CATEGORY_NOT_DIGIT = "category_not_digit"
83 CATEGORY_SPACE = "category_space"
84 CATEGORY_NOT_SPACE = "category_not_space"
85 CATEGORY_WORD = "category_word"
86 CATEGORY_NOT_WORD = "category_not_word"
87 CATEGORY_LINEBREAK = "category_linebreak"
88 CATEGORY_NOT_LINEBREAK = "category_not_linebreak"
89 CATEGORY_LOC_WORD = "category_loc_word"
90 CATEGORY_LOC_NOT_WORD = "category_loc_not_word"
91 CATEGORY_UNI_DIGIT = "category_uni_digit"
92 CATEGORY_UNI_NOT_DIGIT = "category_uni_not_digit"
93 CATEGORY_UNI_SPACE = "category_uni_space"
94 CATEGORY_UNI_NOT_SPACE = "category_uni_not_space"
95 CATEGORY_UNI_WORD = "category_uni_word"
96 CATEGORY_UNI_NOT_WORD = "category_uni_not_word"
97 CATEGORY_UNI_LINEBREAK = "category_uni_linebreak"
98 CATEGORY_UNI_NOT_LINEBREAK = "category_uni_not_linebreak"
99
100 OPCODES = [
101
102
103 FAILURE, SUCCESS,
104
105 ANY, ANY_ALL,
106 ASSERT, ASSERT_NOT,
107 AT,
108 BRANCH,
109 CALL,
110 CATEGORY,
111 CHARSET, BIGCHARSET,
112 GROUPREF, GROUPREF_EXISTS, GROUPREF_IGNORE,
113 IN, IN_IGNORE,
114 INFO,
115 JUMP,
116 LITERAL, LITERAL_IGNORE,
117 MARK,
118 MAX_UNTIL,
119 MIN_UNTIL,
120 NOT_LITERAL, NOT_LITERAL_IGNORE,
121 NEGATE,
122 RANGE,
123 REPEAT,
124 REPEAT_ONE,
125 SUBPATTERN,
126 MIN_REPEAT_ONE
127
128 ]
129
130 ATCODES = [
131 AT_BEGINNING, AT_BEGINNING_LINE, AT_BEGINNING_STRING, AT_BOUNDARY,
132 AT_NON_BOUNDARY, AT_END, AT_END_LINE, AT_END_STRING,
133 AT_LOC_BOUNDARY, AT_LOC_NON_BOUNDARY, AT_UNI_BOUNDARY,
134 AT_UNI_NON_BOUNDARY
135 ]
136
137 CHCODES = [
138 CATEGORY_DIGIT, CATEGORY_NOT_DIGIT, CATEGORY_SPACE,
139 CATEGORY_NOT_SPACE, CATEGORY_WORD, CATEGORY_NOT_WORD,
140 CATEGORY_LINEBREAK, CATEGORY_NOT_LINEBREAK, CATEGORY_LOC_WORD,
141 CATEGORY_LOC_NOT_WORD, CATEGORY_UNI_DIGIT, CATEGORY_UNI_NOT_DIGIT,
142 CATEGORY_UNI_SPACE, CATEGORY_UNI_NOT_SPACE, CATEGORY_UNI_WORD,
143 CATEGORY_UNI_NOT_WORD, CATEGORY_UNI_LINEBREAK,
144 CATEGORY_UNI_NOT_LINEBREAK
145 ]
146
148 d = {}
149 i = 0
150 for item in list:
151 d[item] = i
152 i = i + 1
153 return d
154
155 OPCODES = makedict(OPCODES)
156 ATCODES = makedict(ATCODES)
157 CHCODES = makedict(CHCODES)
158
159
160 OP_IGNORE = {
161 GROUPREF: GROUPREF_IGNORE,
162 IN: IN_IGNORE,
163 LITERAL: LITERAL_IGNORE,
164 NOT_LITERAL: NOT_LITERAL_IGNORE
165 }
166
167 AT_MULTILINE = {
168 AT_BEGINNING: AT_BEGINNING_LINE,
169 AT_END: AT_END_LINE
170 }
171
172 AT_LOCALE = {
173 AT_BOUNDARY: AT_LOC_BOUNDARY,
174 AT_NON_BOUNDARY: AT_LOC_NON_BOUNDARY
175 }
176
177 AT_UNICODE = {
178 AT_BOUNDARY: AT_UNI_BOUNDARY,
179 AT_NON_BOUNDARY: AT_UNI_NON_BOUNDARY
180 }
181
182 CH_LOCALE = {
183 CATEGORY_DIGIT: CATEGORY_DIGIT,
184 CATEGORY_NOT_DIGIT: CATEGORY_NOT_DIGIT,
185 CATEGORY_SPACE: CATEGORY_SPACE,
186 CATEGORY_NOT_SPACE: CATEGORY_NOT_SPACE,
187 CATEGORY_WORD: CATEGORY_LOC_WORD,
188 CATEGORY_NOT_WORD: CATEGORY_LOC_NOT_WORD,
189 CATEGORY_LINEBREAK: CATEGORY_LINEBREAK,
190 CATEGORY_NOT_LINEBREAK: CATEGORY_NOT_LINEBREAK
191 }
192
193 CH_UNICODE = {
194 CATEGORY_DIGIT: CATEGORY_UNI_DIGIT,
195 CATEGORY_NOT_DIGIT: CATEGORY_UNI_NOT_DIGIT,
196 CATEGORY_SPACE: CATEGORY_UNI_SPACE,
197 CATEGORY_NOT_SPACE: CATEGORY_UNI_NOT_SPACE,
198 CATEGORY_WORD: CATEGORY_UNI_WORD,
199 CATEGORY_NOT_WORD: CATEGORY_UNI_NOT_WORD,
200 CATEGORY_LINEBREAK: CATEGORY_UNI_LINEBREAK,
201 CATEGORY_NOT_LINEBREAK: CATEGORY_UNI_NOT_LINEBREAK
202 }
203
204
205 SRE_FLAG_TEMPLATE = 1
206 SRE_FLAG_IGNORECASE = 2
207 SRE_FLAG_LOCALE = 4
208 SRE_FLAG_MULTILINE = 8
209 SRE_FLAG_DOTALL = 16
210 SRE_FLAG_UNICODE = 32
211 SRE_FLAG_VERBOSE = 64
212 SRE_FLAG_DEBUG = 128
213
214
215 SRE_INFO_PREFIX = 1
216 SRE_INFO_LITERAL = 2
217 SRE_INFO_CHARSET = 4
218
219 if __name__ == "__main__":
220 - def dump(f, d, prefix):
221 items = d.items()
222 items.sort(key=lambda a: a[1])
223 for k, v in items:
224 f.write("#define %s_%s %s\n" % (prefix, k.upper(), v))
225 f = open("sre_constants.h", "w")
226 f.write("""\
227 /*
228 * Secret Labs' Regular Expression Engine
229 *
230 * regular expression matching engine
231 *
232 * NOTE: This file is generated by sre_constants.py. If you need
233 * to change anything in here, edit sre_constants.py and run it.
234 *
235 * Copyright (c) 1997-2001 by Secret Labs AB. All rights reserved.
236 *
237 * See the _sre.c file for information on usage and redistribution.
238 */
239
240 """)
241
242 f.write("#define SRE_MAGIC %d\n" % MAGIC)
243
244 dump(f, OPCODES, "SRE_OP")
245 dump(f, ATCODES, "SRE")
246 dump(f, CHCODES, "SRE")
247
248 f.write("#define SRE_FLAG_TEMPLATE %d\n" % SRE_FLAG_TEMPLATE)
249 f.write("#define SRE_FLAG_IGNORECASE %d\n" % SRE_FLAG_IGNORECASE)
250 f.write("#define SRE_FLAG_LOCALE %d\n" % SRE_FLAG_LOCALE)
251 f.write("#define SRE_FLAG_MULTILINE %d\n" % SRE_FLAG_MULTILINE)
252 f.write("#define SRE_FLAG_DOTALL %d\n" % SRE_FLAG_DOTALL)
253 f.write("#define SRE_FLAG_UNICODE %d\n" % SRE_FLAG_UNICODE)
254 f.write("#define SRE_FLAG_VERBOSE %d\n" % SRE_FLAG_VERBOSE)
255
256 f.write("#define SRE_INFO_PREFIX %d\n" % SRE_INFO_PREFIX)
257 f.write("#define SRE_INFO_LITERAL %d\n" % SRE_INFO_LITERAL)
258 f.write("#define SRE_INFO_CHARSET %d\n" % SRE_INFO_CHARSET)
259
260 f.close()
261 print "done"
262