Enum Rule

pub enum Rule {
    Max(i64),
    Min(i64),
    Format(&'static str),
    Lambda(Box<dyn Fn(FieldValue) -> bool>, Option<Box<dyn Fn(&str, &str, &str) -> String>>),
}

This enum offers rules avalable to be applied to a FieldValue.

Note that for diffent FieldValue, the same rule might mean diffent. For example, Max means the maximum length for str value, but means the maximum value for integer value.

Variants

Max(i64)

Maximum limit.

Min(i64)

Mininum limit.

Format(&'static str)

A regex pattern to match against the str representation of FieldValue.

Lambda(Box<dyn Fn(FieldValue) -> bool>, Option<Box<dyn Fn(&str, &str, &str) -> String>>)

A customized lambda, to let you offer your own check logic.