diff --git a/Lib/re/__init__.py b/Lib/re/__init__.py
index c47a2650e32f5f..9056249e012a8d 100644
--- a/Lib/re/__init__.py
+++ b/Lib/re/__init__.py
@@ -133,7 +133,7 @@
# public symbols
__all__ = [
"match", "fullmatch", "search", "sub", "subn", "split",
- "findall", "finditer", "compile", "purge", "template", "escape",
+ "findall", "finditer", "compile", "purge", "escape",
"error", "Pattern", "Match", "A", "I", "L", "M", "S", "X", "U",
"ASCII", "IGNORECASE", "LOCALE", "MULTILINE", "DOTALL", "VERBOSE",
"UNICODE", "NOFLAG", "RegexFlag",
@@ -152,8 +152,6 @@ class RegexFlag:
MULTILINE = M = _compiler.SRE_FLAG_MULTILINE # make anchors look for newline
DOTALL = S = _compiler.SRE_FLAG_DOTALL # make dot match newline
VERBOSE = X = _compiler.SRE_FLAG_VERBOSE # ignore whitespace and comments
- # sre extensions (experimental, don't rely on these)
- TEMPLATE = T = _compiler.SRE_FLAG_TEMPLATE # disable backtracking
DEBUG = _compiler.SRE_FLAG_DEBUG # dump pattern after compilation
__str__ = object.__str__
_numeric_repr_ = hex
@@ -235,10 +233,6 @@ def purge():
_cache.clear()
_compile_repl.cache_clear()
-def template(pattern, flags=0):
- "Compile a template pattern, returning a Pattern object"
- return _compile(pattern, flags|T)
-
# SPECIAL_CHARS
# closing ')', '}' and ']'
# '-' (a range in character set)
diff --git a/Lib/re/_compiler.py b/Lib/re/_compiler.py
index bedd4b8f400164..5b4c4a3f30a40c 100644
--- a/Lib/re/_compiler.py
+++ b/Lib/re/_compiler.py
@@ -147,8 +147,6 @@ def _compile(data, pattern, flags):
else:
emit(ANY)
elif op in REPEATING_CODES:
- if flags & SRE_FLAG_TEMPLATE:
- raise error("internal: unsupported template operator %r" % (op,))
if _simple(av[2]):
emit(REPEATING_CODES[op][2])
skip = _len(code); emit(0)
diff --git a/Lib/re/_constants.py b/Lib/re/_constants.py
index 327ba548118b3b..4c7e93e67ec607 100644
--- a/Lib/re/_constants.py
+++ b/Lib/re/_constants.py
@@ -202,7 +202,6 @@ def _makecodes(names):
}
# 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
@@ -245,7 +244,6 @@ def dump(f, d, prefix):
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)
diff --git a/Lib/re/_parser.py b/Lib/re/_parser.py
index ae44118564eb7d..eca2ffc28b45b1 100644
--- a/Lib/re/_parser.py
+++ b/Lib/re/_parser.py
@@ -61,12 +61,11 @@
"x": SRE_FLAG_VERBOSE,
# extensions
"a": SRE_FLAG_ASCII,
- "t": SRE_FLAG_TEMPLATE,
"u": SRE_FLAG_UNICODE,
}
TYPE_FLAGS = SRE_FLAG_ASCII | SRE_FLAG_LOCALE | SRE_FLAG_UNICODE
-GLOBAL_FLAGS = SRE_FLAG_DEBUG | SRE_FLAG_TEMPLATE
+GLOBAL_FLAGS = SRE_FLAG_DEBUG
class Verbose(Exception):
pass
diff --git a/Lib/test/test_re.py b/Lib/test/test_re.py
index 553eb4cfe85b69..959582e2f12575 100644
--- a/Lib/test/test_re.py
+++ b/Lib/test/test_re.py
@@ -2432,11 +2432,11 @@ def test_flags_repr(self):
"re.IGNORECASE|re.DOTALL|re.VERBOSE|0x100000")
self.assertEqual(
repr(~re.I),
- "re.ASCII|re.LOCALE|re.UNICODE|re.MULTILINE|re.DOTALL|re.VERBOSE|re.TEMPLATE|re.DEBUG")
+ "re.ASCII|re.LOCALE|re.UNICODE|re.MULTILINE|re.DOTALL|re.VERBOSE|re.DEBUG|0x1")
self.assertEqual(repr(~(re.I|re.S|re.X)),
- "re.ASCII|re.LOCALE|re.UNICODE|re.MULTILINE|re.TEMPLATE|re.DEBUG")
+ "re.ASCII|re.LOCALE|re.UNICODE|re.MULTILINE|re.DEBUG|0x1")
self.assertEqual(repr(~(re.I|re.S|re.X|(1<<20))),
- "re.ASCII|re.LOCALE|re.UNICODE|re.MULTILINE|re.TEMPLATE|re.DEBUG|0xffe00")
+ "re.ASCII|re.LOCALE|re.UNICODE|re.MULTILINE|re.DEBUG|0xffe01")
class ImplementationTest(unittest.TestCase):
diff --git a/Misc/NEWS.d/next/Library/2022-04-04-11-58-07.bpo-47211.W4GFkB.rst b/Misc/NEWS.d/next/Library/2022-04-04-11-58-07.bpo-47211.W4GFkB.rst
new file mode 100644
index 00000000000000..0bd5d1619ff784
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2022-04-04-11-58-07.bpo-47211.W4GFkB.rst
@@ -0,0 +1,2 @@
+Remove undocumented and never working function ``re.template()`` and flag
+``re.TEMPLATE``.
diff --git a/Modules/_sre/sre.c b/Modules/_sre/sre.c
index 491734f243849b..bd9204da428af8 100644
--- a/Modules/_sre/sre.c
+++ b/Modules/_sre/sre.c
@@ -1323,7 +1323,6 @@ pattern_repr(PatternObject *obj)
const char *name;
int value;
} flag_names[] = {
- {"re.TEMPLATE", SRE_FLAG_TEMPLATE},
{"re.IGNORECASE", SRE_FLAG_IGNORECASE},
{"re.LOCALE", SRE_FLAG_LOCALE},
{"re.MULTILINE", SRE_FLAG_MULTILINE},
diff --git a/Modules/_sre/sre_constants.h b/Modules/_sre/sre_constants.h
index 3e3643144a92c4..e53fa392ec5852 100644
--- a/Modules/_sre/sre_constants.h
+++ b/Modules/_sre/sre_constants.h
@@ -86,7 +86,6 @@
#define SRE_CATEGORY_UNI_NOT_WORD 15
#define SRE_CATEGORY_UNI_LINEBREAK 16
#define SRE_CATEGORY_UNI_NOT_LINEBREAK 17
-#define SRE_FLAG_TEMPLATE 1
#define SRE_FLAG_IGNORECASE 2
#define SRE_FLAG_LOCALE 4
#define SRE_FLAG_MULTILINE 8
pFad - Phonifier reborn
Pfad - The Proxy pFad of © 2024 Garber Painting. All rights reserved.
Note: This service is not intended for secure transactions such as banking, social media, email, or purchasing. Use at your own risk. We assume no liability whatsoever for broken pages.
Alternative Proxies:
Alternative Proxy
pFad Proxy
pFad v3 Proxy
pFad v4 Proxy