| # | |
| # Secret Labs' Regular Expression Engine | |
| # | |
| # various symbols used by the regular expression engine. | |
| # run this script to update the _sre include files! | |
| # | |
| # Copyright (c) 1998-2001 by Secret Labs AB. All rights reserved. | |
| # | |
| # See the sre.py file for information on usage and redistribution. | |
| # | |
| """Internal support module for sre""" | |
| # update when constants are added or removed | |
| MAGIC = 20031017 | |
| # max code word in this release | |
| MAXREPEAT = 65535 | |
| # SRE standard exception (access as sre.error) | |
| # should this really be here? | |
| class error(Exception): | |
| pass | |
| # operators | |
| FAILURE = "failure" | |
| SUCCESS = "success" | |
| ANY = "any" | |
| ANY_ALL = "any_all" | |
| ASSERT = "assert" | |
| ASSERT_NOT = "assert_not" | |
| AT = "at" | |
| BIGCHARSET = "bigcharset" | |
| BRANCH = "branch" | |
| CALL = "call" | |
| CATEGORY = "category" | |
| CHARSET = "charset" | |
| GROUPREF = "groupref" | |
| GROUPREF_IGNORE = "groupref_ignore" | |
| GROUPREF_EXISTS = "groupref_exists" | |
| IN = "in" | |
| IN_IGNORE = "in_ignore" | |
| INFO = "info" | |
| JUMP = "jump" | |
| LITERAL = "literal" | |
| LITERAL_IGNORE = "literal_ignore" | |
| MARK = "mark" | |
| MAX_REPEAT = "max_repeat" | |
| MAX_UNTIL = "max_until" | |
| MIN_REPEAT = "min_repeat" | |
| MIN_UNTIL = "min_until" | |
| NEGATE = "negate" | |
| NOT_LITERAL = "not_literal" | |
| NOT_LITERAL_IGNORE = "not_literal_ignore" | |
| RANGE = "range" | |
| REPEAT = "repeat" | |
| REPEAT_ONE = "repeat_one" | |
| SUBPATTERN = "subpattern" | |
| MIN_REPEAT_ONE = "min_repeat_one" | |
| # positions | |
| AT_BEGINNING = "at_beginning" | |
| AT_BEGINNING_LINE = "at_beginning_line" | |
| AT_BEGINNING_STRING = "at_beginning_string" | |
| AT_BOUNDARY = "at_boundary" | |
| AT_NON_BOUNDARY = "at_non_boundary" | |
| AT_END = "at_end" | |
| AT_END_LINE = "at_end_line" | |
| AT_END_STRING = "at_end_string" | |
| AT_LOC_BOUNDARY = "at_loc_boundary" | |
| AT_LOC_NON_BOUNDARY = "at_loc_non_boundary" | |
| AT_UNI_BOUNDARY = "at_uni_boundary" | |
| AT_UNI_NON_BOUNDARY = "at_uni_non_boundary" | |
| # categories | |
| CATEGORY_DIGIT = "category_digit" | |
| CATEGORY_NOT_DIGIT = "category_not_digit" | |
| CATEGORY_SPACE = "category_space" | |
| CATEGORY_NOT_SPACE = "category_not_space" | |
| CATEGORY_WORD = "category_word" | |
| CATEGORY_NOT_WORD = "category_not_word" | |
| CATEGORY_LINEBREAK = "category_linebreak" | |
| CATEGORY_NOT_LINEBREAK = "category_not_linebreak" | |
| CATEGORY_LOC_WORD = "category_loc_word" | |
| CATEGORY_LOC_NOT_WORD = "category_loc_not_word" | |
| CATEGORY_UNI_DIGIT = "category_uni_digit" | |
| CATEGORY_UNI_NOT_DIGIT = "category_uni_not_digit" | |
| CATEGORY_UNI_SPACE = "category_uni_space" | |
| CATEGORY_UNI_NOT_SPACE = "category_uni_not_space" | |
| CATEGORY_UNI_WORD = "category_uni_word" | |
| CATEGORY_UNI_NOT_WORD = "category_uni_not_word" | |
| CATEGORY_UNI_LINEBREAK = "category_uni_linebreak" | |
| CATEGORY_UNI_NOT_LINEBREAK = "category_uni_not_linebreak" | |
| OPCODES = [ | |
| # failure=0 success=1 (just because it looks better that way :-) | |
| FAILURE, SUCCESS, | |
| ANY, ANY_ALL, | |
| ASSERT, ASSERT_NOT, | |
| AT, | |
| BRANCH, | |
| CALL, | |
| CATEGORY, | |
| CHARSET, BIGCHARSET, | |
| GROUPREF, GROUPREF_EXISTS, GROUPREF_IGNORE, | |
| IN, IN_IGNORE, | |
| INFO, | |
| JUMP, | |
| LITERAL, LITERAL_IGNORE, | |
| MARK, | |
| MAX_UNTIL, | |
| MIN_UNTIL, | |
| NOT_LITERAL, NOT_LITERAL_IGNORE, | |
| NEGATE, | |
| RANGE, | |
| REPEAT, | |
| REPEAT_ONE, | |
| SUBPATTERN, | |
| MIN_REPEAT_ONE | |
| ] | |
| ATCODES = [ | |
| AT_BEGINNING, AT_BEGINNING_LINE, AT_BEGINNING_STRING, AT_BOUNDARY, | |
| AT_NON_BOUNDARY, AT_END, AT_END_LINE, AT_END_STRING, | |
| AT_LOC_BOUNDARY, AT_LOC_NON_BOUNDARY, AT_UNI_BOUNDARY, | |
| AT_UNI_NON_BOUNDARY | |
| ] | |
| CHCODES = [ | |
| CATEGORY_DIGIT, CATEGORY_NOT_DIGIT, CATEGORY_SPACE, | |
| CATEGORY_NOT_SPACE, CATEGORY_WORD, CATEGORY_NOT_WORD, | |
| CATEGORY_LINEBREAK, CATEGORY_NOT_LINEBREAK, CATEGORY_LOC_WORD, | |
| CATEGORY_LOC_NOT_WORD, CATEGORY_UNI_DIGIT, CATEGORY_UNI_NOT_DIGIT, | |
| CATEGORY_UNI_SPACE, CATEGORY_UNI_NOT_SPACE, CATEGORY_UNI_WORD, | |
| CATEGORY_UNI_NOT_WORD, CATEGORY_UNI_LINEBREAK, | |
| CATEGORY_UNI_NOT_LINEBREAK | |
| ] | |
| def makedict(list): | |
| d = {} | |
| i = 0 | |
| for item in list: | |
| d[item] = i | |
| i = i + 1 | |
| return d | |
| OPCODES = makedict(OPCODES) | |
| ATCODES = makedict(ATCODES) | |
| CHCODES = makedict(CHCODES) | |
| # replacement operations for "ignore case" mode | |
| OP_IGNORE = { | |
| GROUPREF: GROUPREF_IGNORE, | |
| IN: IN_IGNORE, | |
| LITERAL: LITERAL_IGNORE, | |
| NOT_LITERAL: NOT_LITERAL_IGNORE | |
| } | |
| AT_MULTILINE = { | |
| AT_BEGINNING: AT_BEGINNING_LINE, | |
| AT_END: AT_END_LINE | |
| } | |
| AT_LOCALE = { | |
| AT_BOUNDARY: AT_LOC_BOUNDARY, | |
| AT_NON_BOUNDARY: AT_LOC_NON_BOUNDARY | |
| } | |
| AT_UNICODE = { | |
| AT_BOUNDARY: AT_UNI_BOUNDARY, | |
| AT_NON_BOUNDARY: AT_UNI_NON_BOUNDARY | |
| } | |
| CH_LOCALE = { | |
| CATEGORY_DIGIT: CATEGORY_DIGIT, | |
| CATEGORY_NOT_DIGIT: CATEGORY_NOT_DIGIT, | |
| CATEGORY_SPACE: CATEGORY_SPACE, | |
| CATEGORY_NOT_SPACE: CATEGORY_NOT_SPACE, | |
| CATEGORY_WORD: CATEGORY_LOC_WORD, | |
| CATEGORY_NOT_WORD: CATEGORY_LOC_NOT_WORD, | |
| CATEGORY_LINEBREAK: CATEGORY_LINEBREAK, | |
| CATEGORY_NOT_LINEBREAK: CATEGORY_NOT_LINEBREAK | |
| } | |
| CH_UNICODE = { | |
| CATEGORY_DIGIT: CATEGORY_UNI_DIGIT, | |
| CATEGORY_NOT_DIGIT: CATEGORY_UNI_NOT_DIGIT, | |
| CATEGORY_SPACE: CATEGORY_UNI_SPACE, | |
| CATEGORY_NOT_SPACE: CATEGORY_UNI_NOT_SPACE, | |
| CATEGORY_WORD: CATEGORY_UNI_WORD, | |
| CATEGORY_NOT_WORD: CATEGORY_UNI_NOT_WORD, | |
| CATEGORY_LINEBREAK: CATEGORY_UNI_LINEBREAK, | |
| CATEGORY_NOT_LINEBREAK: CATEGORY_UNI_NOT_LINEBREAK | |
| } | |
| # flags | |
| SRE_FLAG_TEMPLATE = 1 # template mode (disable backtracking) | |
| SRE_FLAG_IGNORECASE = 2 # case insensitive | |
| SRE_FLAG_LOCALE = 4 # honour system locale | |
| SRE_FLAG_MULTILINE = 8 # treat target as multiline string | |
| SRE_FLAG_DOTALL = 16 # treat target as a single string | |
| SRE_FLAG_UNICODE = 32 # use unicode locale | |
| SRE_FLAG_VERBOSE = 64 # ignore whitespace and comments | |
| SRE_FLAG_DEBUG = 128 # debugging | |
| # flags for INFO primitive | |
| SRE_INFO_PREFIX = 1 # has prefix | |
| SRE_INFO_LITERAL = 2 # entire pattern is literal (given by prefix) | |
| SRE_INFO_CHARSET = 4 # pattern starts with character from given set | |
| if __name__ == "__main__": | |
| def dump(f, d, prefix): | |
| items = d.items() | |
| items.sort(key=lambda a: a[1]) | |
| for k, v in items: | |
| f.write("#define %s_%s %s\n" % (prefix, k.upper(), v)) | |
| f = open("sre_constants.h", "w") | |
| f.write("""\ | |
| /* | |
| * Secret Labs' Regular Expression Engine | |
| * | |
| * regular expression matching engine | |
| * | |
| * NOTE: This file is generated by sre_constants.py. If you need | |
| * to change anything in here, edit sre_constants.py and run it. | |
| * | |
| * Copyright (c) 1997-2001 by Secret Labs AB. All rights reserved. | |
| * | |
| * See the _sre.c file for information on usage and redistribution. | |
| */ | |
| """) | |
| f.write("#define SRE_MAGIC %d\n" % MAGIC) | |
| dump(f, OPCODES, "SRE_OP") | |
| dump(f, ATCODES, "SRE") | |
| dump(f, CHCODES, "SRE") | |
| f.write("#define SRE_FLAG_TEMPLATE %d\n" % SRE_FLAG_TEMPLATE) | |
| f.write("#define SRE_FLAG_IGNORECASE %d\n" % SRE_FLAG_IGNORECASE) | |
| f.write("#define SRE_FLAG_LOCALE %d\n" % SRE_FLAG_LOCALE) | |
| f.write("#define SRE_FLAG_MULTILINE %d\n" % SRE_FLAG_MULTILINE) | |
| f.write("#define SRE_FLAG_DOTALL %d\n" % SRE_FLAG_DOTALL) | |
| f.write("#define SRE_FLAG_UNICODE %d\n" % SRE_FLAG_UNICODE) | |
| f.write("#define SRE_FLAG_VERBOSE %d\n" % SRE_FLAG_VERBOSE) | |
| f.write("#define SRE_INFO_PREFIX %d\n" % SRE_INFO_PREFIX) | |
| f.write("#define SRE_INFO_LITERAL %d\n" % SRE_INFO_LITERAL) | |
| f.write("#define SRE_INFO_CHARSET %d\n" % SRE_INFO_CHARSET) | |
| f.close() | |
| print "done" |