rnr 0.5.1

RnR is a command-line tool to rename multiple files and directories that supports regular expressions 
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use std::result;

pub type Result<T> = result::Result<T, Error>;

/// Errors during app execution
#[derive(Clone, Debug, Eq, PartialEq)]
pub struct Error {
    /// Define the type of error
    pub kind: ErrorKind,
    /// Value associated to the error
    pub value: Option<String>,
}

/// Define type of error
#[derive(Clone, Debug, Eq, PartialEq)]
pub enum ErrorKind {
    CreateBackup,
    CreateFile,
    CreateSymlink,
    ExistingPath,
    JsonParse,
    ReadFile,
    Rename,
    SameFilename,
    SolveOrder,
}

impl Error {
    pub fn description(&self) -> &str {
        use self::ErrorKind::*;
        match self.kind {
            CreateBackup => "Cannot create a backup of ",
            CreateFile => "Cannot create file ",
            CreateSymlink => "Cannot create symlink ",
            ExistingPath => "Conflict with existing path ",
            JsonParse => "Cannot parse JSON file ",
            ReadFile => "Cannot open/read file ",
            Rename => "Cannot rename ",
            SameFilename => "Files will have the same name\n",
            SolveOrder => "Cannot solve sorting problem.",
        }
    }
}