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pub mod ean13;
pub mod ean8;
pub mod ean_supp;
pub mod code39;
pub mod code128;
pub mod codabar;
pub mod tf;
mod helpers;
use std::ops::Range;
use std::iter::Iterator;
use error::Error;
trait Parse {
fn valid_chars() -> Vec<char>;
fn valid_len() -> Range<u32>;
fn parse(data: &str) -> Result<&str, Error> {
let valid_chars = Self::valid_chars();
let valid_len = Self::valid_len();
let data_len = data.len() as u32;
if data_len < valid_len.start || data_len > valid_len.end {
return Err(Error::Length);
}
let bad_char = data
.chars()
.find(|&c| valid_chars
.iter()
.find(|&vc| *vc == c)
.is_none());
match bad_char {
Some(_) => Err(Error::Character),
None => Ok(data),
}
}
}