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Diffstat (limited to 'lib/python2.7/sre_constants.py')
| -rw-r--r-- | lib/python2.7/sre_constants.py | 259 |
1 files changed, 259 insertions, 0 deletions
diff --git a/lib/python2.7/sre_constants.py b/lib/python2.7/sre_constants.py new file mode 100644 index 0000000..b0175e7 --- /dev/null +++ b/lib/python2.7/sre_constants.py @@ -0,0 +1,259 @@ +# +# 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 + +from _sre import MAXREPEAT + +# 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" |