name : sre_constants.py # # 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 try: from _sre import MAXREPEAT except ImportError: import _sre MAXREPEAT = _sre.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"