Add a hook function to handle an escaped character entity.
Add a hook function to handle an escaped character entity. When an entity definition isn't one of the five supported types (>, <, &, ', "), the appropriate function you install will be called to handle the translation. You will need to add one functions for each entity encoding you want to support.The function must return a pointer to the string to be output instead of the encoded entity. This should preferably be a static buffer. Your function will have a pointer to the first character after the ampersand as its first and only argument.