Function validate_string_contents 

pub fn validate_string_contents(
    value: &str,
    context: &str,
) -> Result<(), String>

Validate that a string contains no I-JSON forbidden noncharacters.

Errors

Returns a description of the violation if the string contains a forbidden Unicode noncharacter (U+FDD0..U+FDEF, U+xFFFE, U+xFFFF).