Library import 16 (#2433)

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1 files changed, 220 insertions, 0 deletions

diff --git a/contrib/tools/python3/Lib/re/_constants.py b/contrib/tools/python3/Lib/re/_constants.py
new file mode 100644
index 0000000000..d8718d3607
--- /dev/null
+++ b/contrib/tools/python3/Lib/re/_constants.py
@@ -0,0 +1,220 @@
+#
+# 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 __init__.py file for information on usage and redistribution.
+#
+
+"""Internal support module for sre"""
+
+# update when constants are added or removed
+
+MAGIC = 20221023
+
+from _sre import MAXREPEAT, MAXGROUPS
+
+# SRE standard exception (access as sre.error)
+# should this really be here?
+
+class error(Exception):
+    """Exception raised for invalid regular expressions.
+
+    Attributes:
+
+        msg: The unformatted error message
+        pattern: The regular expression pattern
+        pos: The index in the pattern where compilation failed (may be None)
+        lineno: The line corresponding to pos (may be None)
+        colno: The column corresponding to pos (may be None)
+    """
+
+    __module__ = 're'
+
+    def __init__(self, msg, pattern=None, pos=None):
+        self.msg = msg
+        self.pattern = pattern
+        self.pos = pos
+        if pattern is not None and pos is not None:
+            msg = '%s at position %d' % (msg, pos)
+            if isinstance(pattern, str):
+                newline = '\n'
+            else:
+                newline = b'\n'
+            self.lineno = pattern.count(newline, 0, pos) + 1
+            self.colno = pos - pattern.rfind(newline, 0, pos)
+            if newline in pattern:
+                msg = '%s (line %d, column %d)' % (msg, self.lineno, self.colno)
+        else:
+            self.lineno = self.colno = None
+        super().__init__(msg)
+
+
+class _NamedIntConstant(int):
+    def __new__(cls, value, name):
+        self = super(_NamedIntConstant, cls).__new__(cls, value)
+        self.name = name
+        return self
+
+    def __repr__(self):
+        return self.name
+
+    __reduce__ = None
+
+MAXREPEAT = _NamedIntConstant(MAXREPEAT, 'MAXREPEAT')
+
+def _makecodes(*names):
+    items = [_NamedIntConstant(i, name) for i, name in enumerate(names)]
+    globals().update({item.name: item for item in items})
+    return items
+
+# operators
+OPCODES = _makecodes(
+    # failure=0 success=1 (just because it looks better that way :-)
+    'FAILURE', 'SUCCESS',
+
+    'ANY', 'ANY_ALL',
+    'ASSERT', 'ASSERT_NOT',
+    'AT',
+    'BRANCH',
+    'CATEGORY',
+    'CHARSET', 'BIGCHARSET',
+    'GROUPREF', 'GROUPREF_EXISTS',
+    'IN',
+    'INFO',
+    'JUMP',
+    'LITERAL',
+    'MARK',
+    'MAX_UNTIL',
+    'MIN_UNTIL',
+    'NOT_LITERAL',
+    'NEGATE',
+    'RANGE',
+    'REPEAT',
+    'REPEAT_ONE',
+    'SUBPATTERN',
+    'MIN_REPEAT_ONE',
+    'ATOMIC_GROUP',
+    'POSSESSIVE_REPEAT',
+    'POSSESSIVE_REPEAT_ONE',
+
+    'GROUPREF_IGNORE',
+    'IN_IGNORE',
+    'LITERAL_IGNORE',
+    'NOT_LITERAL_IGNORE',
+
+    'GROUPREF_LOC_IGNORE',
+    'IN_LOC_IGNORE',
+    'LITERAL_LOC_IGNORE',
+    'NOT_LITERAL_LOC_IGNORE',
+
+    'GROUPREF_UNI_IGNORE',
+    'IN_UNI_IGNORE',
+    'LITERAL_UNI_IGNORE',
+    'NOT_LITERAL_UNI_IGNORE',
+    'RANGE_UNI_IGNORE',
+
+    # The following opcodes are only occurred in the parser output,
+    # but not in the compiled code.
+    'MIN_REPEAT', 'MAX_REPEAT',
+)
+del OPCODES[-2:] # remove MIN_REPEAT and MAX_REPEAT
+
+# positions
+ATCODES = _makecodes(
+    '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',
+)
+
+# categories
+CHCODES = _makecodes(
+    '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',
+)
+
+
+# replacement operations for "ignore case" mode
+OP_IGNORE = {
+    LITERAL: LITERAL_IGNORE,
+    NOT_LITERAL: NOT_LITERAL_IGNORE,
+}
+
+OP_LOCALE_IGNORE = {
+    LITERAL: LITERAL_LOC_IGNORE,
+    NOT_LITERAL: NOT_LITERAL_LOC_IGNORE,
+}
+
+OP_UNICODE_IGNORE = {
+    LITERAL: LITERAL_UNI_IGNORE,
+    NOT_LITERAL: NOT_LITERAL_UNI_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 (unknown purpose, deprecated)
+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
+SRE_FLAG_ASCII = 256 # use ascii "locale"
+
+# 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