Because it is XML some symbols should be converted to entity (even inside attributes):
| Original | Escaped |
|---|---|
| < | < |
| > | > |
| & | & |
| “ | " |
If you want to use some where (not everywhere allowed) line breaks or tabs you can represent them as following:
| Original | Escaped |
|---|---|
| Any kind of line breaks (\r\n, \n\r, \r, \n) | \n - all line breaks use dos style at the end (\r\n) |
| Tab character (0x09) | \t |
| \n combination | \\n |
| \t combination | \\t |