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173 lines
4.2 KiB
Python
173 lines
4.2 KiB
Python
#
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# Secret Labs' Regular Expression Engine
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# $Id$
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#
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# various symbols used by the regular expression engine.
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# run this script to update the _sre include files!
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#
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# Copyright (c) 1998-2000 by Secret Labs AB. All rights reserved.
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#
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# This code can only be used for 1.6 alpha testing. All other use
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# require explicit permission from Secret Labs AB.
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#
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# Portions of this engine have been developed in cooperation with
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# CNRI. Hewlett-Packard provided funding for 1.6 integration and
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# other compatibility work.
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#
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# operators
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FAILURE = "failure"
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SUCCESS = "success"
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ANY = "any"
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ASSERT = "assert"
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AT = "at"
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BRANCH = "branch"
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CALL = "call"
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CATEGORY = "category"
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GROUP = "group"
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GROUP_IGNORE = "group_ignore"
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IN = "in"
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IN_IGNORE = "in_ignore"
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JUMP = "jump"
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LITERAL = "literal"
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LITERAL_IGNORE = "literal_ignore"
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MARK = "mark"
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MAX_REPEAT = "max_repeat"
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MAX_REPEAT_ONE = "max_repeat_one"
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MAX_UNTIL = "max_until"
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MIN_REPEAT = "min_repeat"
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MIN_UNTIL = "min_until"
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NEGATE = "negate"
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NOT_LITERAL = "not_literal"
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NOT_LITERAL_IGNORE = "not_literal_ignore"
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RANGE = "range"
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REPEAT = "repeat"
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SUBPATTERN = "subpattern"
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# positions
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AT_BEGINNING = "at_beginning"
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AT_BEGINNING_LINE = "at_beginning_line"
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AT_BOUNDARY = "at_boundary"
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AT_NON_BOUNDARY = "at_non_boundary"
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AT_END = "at_end"
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AT_END_LINE = "at_end_line"
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# categories
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CATEGORY_DIGIT = "category_digit"
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CATEGORY_NOT_DIGIT = "category_not_digit"
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CATEGORY_SPACE = "category_space"
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CATEGORY_NOT_SPACE = "category_not_space"
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CATEGORY_WORD = "category_word"
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CATEGORY_NOT_WORD = "category_not_word"
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CATEGORY_LINEBREAK = "category_linebreak"
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CATEGORY_NOT_LINEBREAK = "category_not_linebreak"
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CATEGORY_LOC_DIGIT = "category_loc_digit"
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CATEGORY_LOC_NOT_DIGIT = "category_loc_not_digit"
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CATEGORY_LOC_SPACE = "category_loc_space"
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CATEGORY_LOC_NOT_SPACE = "category_loc_not_space"
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CATEGORY_LOC_WORD = "category_loc_word"
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CATEGORY_LOC_NOT_WORD = "category_loc_not_word"
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CATEGORY_LOC_LINEBREAK = "category_loc_linebreak"
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CATEGORY_LOC_NOT_LINEBREAK = "category_loc_not_linebreak"
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OPCODES = [
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# failure=0 success=1 (just because it looks better that way :-)
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FAILURE, SUCCESS,
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ANY,
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ASSERT,
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AT,
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BRANCH,
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CALL,
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CATEGORY,
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GROUP, GROUP_IGNORE,
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IN, IN_IGNORE,
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JUMP,
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LITERAL, LITERAL_IGNORE,
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MARK,
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MAX_REPEAT, MAX_UNTIL,
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MAX_REPEAT_ONE,
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MIN_REPEAT, MIN_UNTIL,
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NOT_LITERAL, NOT_LITERAL_IGNORE,
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NEGATE,
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RANGE,
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REPEAT
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]
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ATCODES = [
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AT_BEGINNING, AT_BEGINNING_LINE, AT_BOUNDARY,
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AT_NON_BOUNDARY, AT_END, AT_END_LINE
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]
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CHCODES = [
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CATEGORY_DIGIT, CATEGORY_NOT_DIGIT, CATEGORY_SPACE,
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CATEGORY_NOT_SPACE, CATEGORY_WORD, CATEGORY_NOT_WORD,
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CATEGORY_LINEBREAK, CATEGORY_NOT_LINEBREAK, CATEGORY_LOC_DIGIT,
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CATEGORY_LOC_NOT_DIGIT, CATEGORY_LOC_SPACE,
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CATEGORY_LOC_NOT_SPACE, CATEGORY_LOC_WORD, CATEGORY_LOC_NOT_WORD,
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CATEGORY_LOC_LINEBREAK, CATEGORY_LOC_NOT_LINEBREAK
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]
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def makedict(list):
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d = {}
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i = 0
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for item in list:
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d[item] = i
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i = i + 1
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return d
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OPCODES = makedict(OPCODES)
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ATCODES = makedict(ATCODES)
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CHCODES = makedict(CHCODES)
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# replacement operations for "ignore case" mode
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OP_IGNORE = {
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GROUP: GROUP_IGNORE,
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IN: IN_IGNORE,
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LITERAL: LITERAL_IGNORE,
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NOT_LITERAL: NOT_LITERAL_IGNORE
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}
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AT_MULTILINE = {
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AT_BEGINNING: AT_BEGINNING_LINE,
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AT_END: AT_END_LINE
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}
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CH_LOCALE = {
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CATEGORY_DIGIT: CATEGORY_LOC_DIGIT,
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CATEGORY_NOT_DIGIT: CATEGORY_LOC_NOT_DIGIT,
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CATEGORY_SPACE: CATEGORY_LOC_SPACE,
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CATEGORY_NOT_SPACE: CATEGORY_LOC_NOT_SPACE,
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CATEGORY_WORD: CATEGORY_LOC_WORD,
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CATEGORY_NOT_WORD: CATEGORY_LOC_NOT_WORD,
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CATEGORY_LINEBREAK: CATEGORY_LOC_LINEBREAK,
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CATEGORY_NOT_LINEBREAK: CATEGORY_LOC_NOT_LINEBREAK
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}
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# flags
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SRE_FLAG_TEMPLATE = 1 # NYI
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SRE_FLAG_IGNORECASE = 2
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SRE_FLAG_LOCALE = 4
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SRE_FLAG_MULTILINE = 8
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SRE_FLAG_DOTALL = 16
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SRE_FLAG_VERBOSE = 32
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if __name__ == "__main__":
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import string
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def dump(f, d, prefix):
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items = d.items()
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items.sort(lambda a, b: cmp(a[1], b[1]))
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for k, v in items:
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f.write("#define %s_%s %s\n" % (prefix, string.upper(k), v))
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f = open("sre_constants.h", "w")
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f.write("/* generated from sre_constants.py */\n")
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dump(f, OPCODES, "SRE_OP")
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dump(f, ATCODES, "SRE")
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dump(f, CHCODES, "SRE")
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f.close()
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print "done"
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