Add the 'json' package. Code taken from simplejson 1.9 and contributed by Bob

Ippolito.

Closes issue #2750.

Lib/json/tests/test_scanstring.py

@@ -0,0 +1,102 @@
+import sys
+import decimal
+from unittest import TestCase
+
+import json.decoder
+
+class TestScanString(TestCase):
+    def test_py_scanstring(self):
+        self._test_scanstring(json.decoder.py_scanstring)
+
+    def test_c_scanstring(self):
+        self._test_scanstring(json.decoder.c_scanstring)
+
+    def _test_scanstring(self, scanstring):
+        self.assertEquals(
+            scanstring('"z\\ud834\\udd20x"', 1, None, True),
+            (u'z\U0001d120x', 16))
+
+        if sys.maxunicode == 65535:
+            self.assertEquals(
+                scanstring(u'"z\U0001d120x"', 1, None, True),
+                (u'z\U0001d120x', 6))
+        else:
+            self.assertEquals(
+                scanstring(u'"z\U0001d120x"', 1, None, True),
+                (u'z\U0001d120x', 5))
+
+        self.assertEquals(
+            scanstring('"\\u007b"', 1, None, True),
+            (u'{', 8))
+
+        self.assertEquals(
+            scanstring('"A JSON payload should be an object or array, not a string."', 1, None, True),
+            (u'A JSON payload should be an object or array, not a string.', 60))
+
+        self.assertEquals(
+            scanstring('["Unclosed array"', 2, None, True),
+            (u'Unclosed array', 17))
+
+        self.assertEquals(
+            scanstring('["extra comma",]', 2, None, True),
+            (u'extra comma', 14))
+
+        self.assertEquals(
+            scanstring('["double extra comma",,]', 2, None, True),
+            (u'double extra comma', 21))
+
+        self.assertEquals(
+            scanstring('["Comma after the close"],', 2, None, True),
+            (u'Comma after the close', 24))
+
+        self.assertEquals(
+            scanstring('["Extra close"]]', 2, None, True),
+            (u'Extra close', 14))
+
+        self.assertEquals(
+            scanstring('{"Extra comma": true,}', 2, None, True),
+            (u'Extra comma', 14))
+
+        self.assertEquals(
+            scanstring('{"Extra value after close": true} "misplaced quoted value"', 2, None, True),
+            (u'Extra value after close', 26))
+
+        self.assertEquals(
+            scanstring('{"Illegal expression": 1 + 2}', 2, None, True),
+            (u'Illegal expression', 21))
+
+        self.assertEquals(
+            scanstring('{"Illegal invocation": alert()}', 2, None, True),
+            (u'Illegal invocation', 21))
+
+        self.assertEquals(
+            scanstring('{"Numbers cannot have leading zeroes": 013}', 2, None, True),
+            (u'Numbers cannot have leading zeroes', 37))
+
+        self.assertEquals(
+            scanstring('{"Numbers cannot be hex": 0x14}', 2, None, True),
+            (u'Numbers cannot be hex', 24))
+
+        self.assertEquals(
+            scanstring('[[[[[[[[[[[[[[[[[[[["Too deep"]]]]]]]]]]]]]]]]]]]]', 21, None, True),
+            (u'Too deep', 30))
+
+        self.assertEquals(
+            scanstring('{"Missing colon" null}', 2, None, True),
+            (u'Missing colon', 16))
+
+        self.assertEquals(
+            scanstring('{"Double colon":: null}', 2, None, True),
+            (u'Double colon', 15))
+
+        self.assertEquals(
+            scanstring('{"Comma instead of colon", null}', 2, None, True),
+            (u'Comma instead of colon', 25))
+
+        self.assertEquals(
+            scanstring('["Colon instead of comma": false]', 2, None, True),
+            (u'Colon instead of comma', 25))
+
+        self.assertEquals(
+            scanstring('["Bad value", truth]', 2, None, True),
+            (u'Bad value', 12))