Struct Replacer 

pub struct Replacer {
    pub regex: Option<Regex>,
    pub hints: Option<Vec<String>>,
    pub repl: Option<Vec<u8>>,
    pub repl_func: Option<Box<dyn Fn(&[u8]) -> Vec<u8> + Send + Sync>>,
}

Defines a rule for scrubbing sensitive information.

Fields

regex: Option<Regex>

regex must match the sensitive information within a value.

hints: Option<Vec<String>>

hints, if given, are strings which must also be present in the text for the regex to match. This can be used to limit the contexts where an otherwise very broad regex is actually applied.

repl: Option<Vec<u8>>

repl is the byte slice to replace the substring matching regex. It can use the regex crate’s replacement-string syntax (e.g., $1 to refer to the first capture group).

repl_func: Option<Box<dyn Fn(&[u8]) -> Vec<u8> + Send + Sync>>

repl_func, if set, is called with the matched byte slice. The return value is used as the replacement. Only one of repl and repl_func should be set.