Merged revisions 83395,83417 via svnmerge from
svn+ssh://svn.python.org/python/branches/py3k

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  r83395 | georg.brandl | 2010-08-01 10:49:18 +0200 (So, 01 Aug 2010) | 1 line

  #8821: do not rely on Unicode strings being terminated with a \u0000, rather explicitly check range before looking for a second surrogate character.
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  r83417 | georg.brandl | 2010-08-01 20:38:26 +0200 (So, 01 Aug 2010) | 1 line

  #5776: fix mistakes in python specfile.  (Nobody probably uses it anyway.)
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diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index 199f34a..a18c571 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -3597,7 +3597,7 @@
 
             ch2 = *s++;
             size--;
-            if (ch2 >= 0xDC00 && ch2 <= 0xDFFF) {
+            if (ch2 >= 0xDC00 && ch2 <= 0xDFFF && size) {
                 ucs = (((ch & 0x03FF) << 10) | (ch2 & 0x03FF)) + 0x00010000;
                 *p++ = '\\';
                 *p++ = 'U';
@@ -3839,7 +3839,7 @@
 
                 ch2 = *s++;
                 size--;
-                if (ch2 >= 0xDC00 && ch2 <= 0xDFFF) {
+                if (ch2 >= 0xDC00 && ch2 <= 0xDFFF && size) {
                     ucs = (((ch & 0x03FF) << 10) | (ch2 & 0x03FF)) + 0x00010000;
                     *p++ = '\\';
                     *p++ = 'U';