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mod json; mod toml; mod yaml; pub fn solve( file_type: &str, input: &str, expression: Option<&str>, replace: Option<&str>, ) -> String { match file_type.to_ascii_lowercase().as_ref() { "json" => json::JsonSolver::solve(input, expression, replace), "yaml" | "yml" => yaml::YamlSolver::solve(input, expression, replace), "toml" => toml::TomlSolver::solve(input, expression, replace), _ => panic!("Unknown file_type:{}", file_type), } } #[derive(Debug)] pub enum TError { KeyNotExist(String), ConversionError(String, Box<dyn std::error::Error>), Other(Box<dyn std::error::Error>), } impl std::error::Error for TError {} impl std::fmt::Display for TError { fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result { write!(f, "{:#?}", self) } } macro_rules! impl_error { ($ty:ty) => { impl std::convert::From<$ty> for TError { fn from(err: $ty) -> Self { TError::Other(Box::new(err)) } } }; } impl_error!(std::num::ParseIntError); impl_error!(serde_json::Error); impl_error!(serde_yaml::Error); impl_error!(::toml::de::Error); trait Solver { fn solve(input: &str, expression: Option<&str>, replace: Option<&str>) -> String; }