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Issue #11461: Fix the incremental UTF-16 decoder. Original patch by

Browse source 
Amaury Forgeot d'Arc. Added tests for partial decoding of non-BMP
characters.
This commit is contained in:
Serhiy Storchaka 2013-01-08 23:40:52 +02:00
commit ae3b32ad6b
3 changed files with 47 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

48
Lib/test/test_codecs.py
View file

@ -330,7 +330,7 @@ def test_badbom(self):
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
[
"", # first byte of BOM read
"", # second byte of BOM read
@ -352,6 +352,10 @@ def test_partial(self):
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
@ -386,7 +390,7 @@ class UTF32LETest(ReadTest):
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
[
"",
"",
@ -404,6 +408,10 @@ def test_partial(self):
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
@ -426,7 +434,7 @@ class UTF32BETest(ReadTest):
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
[
"",
"",
@ -444,6 +452,10 @@ def test_partial(self):
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
@ -494,7 +506,7 @@ def test_badbom(self):
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
[
"", # first byte of BOM read
"", # second byte of BOM read => byteorder known
@ -506,6 +518,10 @@ def test_partial(self):
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
@ -543,7 +559,7 @@ class UTF16LETest(ReadTest):
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
[
"",
"\x00",
@ -553,6 +569,10 @@ def test_partial(self):
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
@ -582,7 +602,7 @@ class UTF16BETest(ReadTest):
def test_partial(self):
self.check_partial(
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
[
"",
"\x00",
@ -592,6 +612,10 @@ def test_partial(self):
"\x00\xff\u0100",
"\x00\xff\u0100",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff",
"\x00\xff\u0100\uffff\U00010000",
]
)
@ -621,7 +645,7 @@ class UTF8Test(ReadTest):
def test_partial(self):
self.check_partial(
"\x00\xff\u07ff\u0800\uffff",
"\x00\xff\u07ff\u0800\uffff\U00010000",
[
"\x00",
"\x00",
@ -634,6 +658,10 @@ def test_partial(self):
"\x00\xff\u07ff\u0800",
"\x00\xff\u07ff\u0800",
"\x00\xff\u07ff\u0800\uffff",
"\x00\xff\u07ff\u0800\uffff",
"\x00\xff\u07ff\u0800\uffff",
"\x00\xff\u07ff\u0800\uffff",
"\x00\xff\u07ff\u0800\uffff\U00010000",
]
)
@ -816,7 +844,7 @@ class UTF8SigTest(ReadTest):
def test_partial(self):
self.check_partial(
"\ufeff\x00\xff\u07ff\u0800\uffff",
"\ufeff\x00\xff\u07ff\u0800\uffff\U00010000",
[
"",
"",
@ -835,6 +863,10 @@ def test_partial(self):
"\ufeff\x00\xff\u07ff\u0800",
"\ufeff\x00\xff\u07ff\u0800",
"\ufeff\x00\xff\u07ff\u0800\uffff",
"\ufeff\x00\xff\u07ff\u0800\uffff",
"\ufeff\x00\xff\u07ff\u0800\uffff",
"\ufeff\x00\xff\u07ff\u0800\uffff",
"\ufeff\x00\xff\u07ff\u0800\uffff\U00010000",
]
)

3
Misc/NEWS
View file

@ -12,6 +12,9 @@ What's New in Python 3.3.1?
Core and Builtins
-----------------
- Issue #11461: Fix the incremental UTF-16 decoder. Original patch by
Amaury Forgeot d'Arc.
- Issue #16881: Fix Py_ARRAY_LENGTH macro for GCC < 3.1.
- Issue #16856: Fix a segmentation fault from calling repr() on a dict with

5
Objects/unicodeobject.c
View file

@ -5284,8 +5284,11 @@ PyUnicode_DecodeUTF16Stateful(const char *s,
/* The remaining input chars are ignored if the callback
chooses to skip the input */
case 1:
q -= 2;
if (consumed)
goto End;
errmsg = "unexpected end of data";
startinpos = ((const char *)q) - 2 - starts;
startinpos = ((const char *)q) - starts;
endinpos = ((const char *)e) - starts;
break;
case 2: