Added BrowsableAPIUnicodeRenderer for displaying unicode data in the web interface.

Added UnicodeJSONRenderer for displaying unicode data in the JSON format.

rest_framework/renderers.py

@@ -518,3 +518,62 @@ class BrowsableAPIRenderer(BaseRenderer):
             response.status_code = status.HTTP_200_OK
 
         return ret
+
+
+
+import re
+all_chars = (unichr(i) for i in xrange(0x110000))
+control_chars = ''.join(map(unichr, range(0,32) + range(127,160)))
+control_char_re = re.compile('[%s]' % re.escape(control_chars))
+
+class BrowsableAPIUnicodeRenderer(BrowsableAPIRenderer):
+    def get_content(self, renderer, data,
+                    accepted_media_type, renderer_context):
+        """
+            Get the content as if it had been rendered by the default
+            non-documenting renderer.
+            """
+        if not renderer:
+            return '[No renderers were found]'
+        
+        renderer_context['indent'] = 4
+        content = renderer.render(data, accepted_media_type, renderer_context)
+        
+        if not not control_char_re.match(content):
+            return '[%d bytes of binary content]'
+        
+        return content
+
+
+class UnicodeJSONRenderer(BaseRenderer):
+    """
+        Renderer which serializes to json.
+        """
+    
+    media_type = 'application/json'
+    format = 'json'
+    encoder_class = encoders.JSONEncoder
+    
+    def render(self, data, accepted_media_type=None, renderer_context=None):
+        """
+            Render `obj` into json.
+            """
+        if data is None:
+            return ''
+        
+        # If 'indent' is provided in the context, then pretty print the result.
+        # E.g. If we're being called by the BrowseableAPIRenderer.
+        renderer_context = renderer_context or {}
+        indent = renderer_context.get('indent', None)
+        
+        if accepted_media_type:
+            # If the media type looks like 'application/json; indent=4',
+            # then pretty print the result.
+            base_media_type, params = parse_header(accepted_media_type.encode('ascii'))
+            indent = params.get('indent', indent)
+            try:
+                indent = max(min(int(indent), 8), 0)
+            except (ValueError, TypeError):
+                indent = None
+        
+        return json.dumps(data, cls=self.encoder_class, indent=indent, ensure_ascii=False)