Convert special characters to HTML entities and decode them back.
| Char | Entity | Name | Code |
|---|---|---|---|
| & | & | Ampersand | & |
| < | < | Less than | < |
| > | > | Greater than | > |
| " | " | Double quote | " |
| ' | ' | Apostrophe | ' |
| | Non-breaking space |   | |
| © | © | Copyright | © |
| — | — | Em dash | — |