idna_cli/
lib.rs

1use serde::Serialize;
2use std::fs::File;
3use std::io::{self, BufRead};
4use std::path::Path;
5
6/**
7# Errors
8
9Return an error if the given filename path fails to open for reading
10*/
11pub fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
12where
13    P: AsRef<Path>,
14{
15    let file = File::open(filename)?;
16    Ok(io::BufReader::new(file).lines())
17}
18// https://doc.rust-lang.org/rust-by-example/std_misc/file/read_lines.html#a-more-efficient-approach
19
20#[must_use]
21pub fn to_unicode(domain: &str) -> (String, String) {
22    match idna::domain_to_unicode(domain) {
23        (s, Err(e)) => (s, e.to_string()),
24        (s, _) => (s, String::new()),
25    }
26}
27
28#[must_use]
29pub fn to_ascii(domain: &str) -> (String, String) {
30    match idna::domain_to_ascii(domain) {
31        Ok(s) => (s, String::new()),
32        Err(e) => (String::new(), e.to_string()),
33    }
34}
35
36#[must_use]
37pub fn process(domain: &str, decode: bool) -> (String, String) {
38    if decode {
39        to_unicode(domain)
40    } else {
41        to_ascii(domain)
42    }
43}
44
45pub fn print_csv_result(domain: &str, decode: bool) {
46    let (converted, errors) = process(domain, decode);
47    println!("{domain:?},{converted:?},{errors:?}");
48}
49
50#[derive(Debug, Serialize)]
51pub struct Domain {
52    ascii: String,
53    unicode: String,
54    errors: String,
55}
56
57impl Domain {
58    #[must_use]
59    pub fn new(domain: &str, decode: bool) -> Domain {
60        let (converted, errors) = process(domain, decode);
61        if decode {
62            Domain {
63                ascii: domain.to_string(),
64                unicode: converted,
65                errors,
66            }
67        } else {
68            Domain {
69                ascii: converted,
70                unicode: domain.to_string(),
71                errors,
72            }
73        }
74    }
75}
idna_cli/lib.rs

idna_cli/
lib.rs
