XML文档中的奇怪字符

Question

I have a strange character showing up on my rss feed. On firefox, it looks like a box with four numbers in each corner, in some cases, 0 - 0 - 9 - 4, in other 0 - 0 - 9 - 2.

These are appearing where smart quotes should be.

I'm familiar with the black diamond with the question mark, but this is a new one.

Answer 1

The 0-0-9-4 indicates that the character was 0x0094, which is an unassigned UTF-16 character. Whatever is producing the feed is inserting characters for which your browser has no font mapping, or possibly the character-encoding specified in the header doesn't match the stream contents.