Added Fredrik Lundh's sre module and its supporting cast.

NOTE: THIS IS VERY ROUGH ALPHA CODE!

1 files changed, 131 insertions, 0 deletions

diff --git a/Lib/sre_constants.py b/Lib/sre_constants.py
new file mode 100644
index 0000000..af88309
--- /dev/null
+++ b/Lib/sre_constants.py
@@ -0,0 +1,131 @@
+#
+# Secret Labs' Regular Expression Engine
+# $Id$
+#
+# various symbols used by the regular expression engine.
+# run this script to update the _sre include files!
+#
+# Copyright (c) 1998-2000 by Secret Labs AB.  All rights reserved.
+#
+# This code can only be used for 1.6 alpha testing.  All other use
+# require explicit permission from Secret Labs AB.
+#
+# Portions of this engine have been developed in cooperation with
+# CNRI.  Hewlett-Packard provided funding for 1.6 integration and
+# other compatibility work.
+#
+
+# operators
+
+FAILURE = "failure"
+SUCCESS = "success"
+
+ANY = "any"
+ASSERT = "assert"
+AT = "at"
+BRANCH = "branch"
+CALL = "call"
+CATEGORY = "category"
+GROUP = "group"
+GROUP_IGNORE = "group_ignore"
+IN = "in"
+IN_IGNORE = "in_ignore"
+JUMP = "jump"
+LITERAL = "literal"
+LITERAL_IGNORE = "literal_ignore"
+MARK = "mark"
+MAX_REPEAT = "max_repeat"
+MAX_REPEAT_ONE = "max_repeat_one"
+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"
+SUBPATTERN = "subpattern"
+
+# positions
+AT_BEGINNING = "at_beginning"
+AT_BOUNDARY = "at_boundary"
+AT_NON_BOUNDARY = "at_non_boundary"
+AT_END = "at_end"
+
+# 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"
+
+CODES = [
+
+    # failure=0 success=1 (just because it looks better that way :-)
+    FAILURE, SUCCESS,
+
+    ANY,
+    ASSERT,
+    AT,
+    BRANCH,
+    CALL,
+    CATEGORY,
+    GROUP, GROUP_IGNORE,
+    IN, IN_IGNORE,
+    JUMP,
+    LITERAL, LITERAL_IGNORE,
+    MARK,
+    MAX_REPEAT, MAX_UNTIL,
+    MAX_REPEAT_ONE,
+    MIN_REPEAT, MIN_UNTIL,
+    NOT_LITERAL, NOT_LITERAL_IGNORE,
+    NEGATE,
+    RANGE,
+    REPEAT
+
+]
+
+# convert to dictionary
+c = {}
+i = 0
+for code in CODES:
+    c[code] = i
+    i = i + 1
+CODES = c
+
+# replacement operations for "ignore case" mode
+MAP_IGNORE = {
+    GROUP: GROUP_IGNORE,
+    IN: IN_IGNORE,
+    LITERAL: LITERAL_IGNORE,
+    NOT_LITERAL: NOT_LITERAL_IGNORE
+}
+
+POSITIONS = {
+    AT_BEGINNING: ord("a"),
+    AT_BOUNDARY: ord("b"),
+    AT_NON_BOUNDARY: ord("B"),
+    AT_END: ord("z"),
+}
+
+CATEGORIES = {
+    CATEGORY_DIGIT: ord("d"),
+    CATEGORY_NOT_DIGIT: ord("D"),
+    CATEGORY_SPACE: ord("s"),
+    CATEGORY_NOT_SPACE: ord("S"),
+    CATEGORY_WORD: ord("w"),
+    CATEGORY_NOT_WORD: ord("W"),
+}
+
+if __name__ == "__main__":
+    import string
+    items = CODES.items()
+    items.sort(lambda a, b: cmp(a[1], b[1]))
+    f = open("sre_constants.h", "w")
+    f.write("/* generated by sre_constants.py */\n")
+    for k, v in items:
+	f.write("#define SRE_OP_" + string.upper(k) + " " + str(v) + "\n")
+    f.close()
+    print "done"