1 // The Computer Language Benchmarks Game
2 // https://benchmarksgame-team.pages.debian.net/benchmarksgame/
3 //
4 // contributed by the Rust Project Developers
5 // contributed by TeXitoi
6 // contributed by BurntSushi
7
8 use std::io::{self, Read};
9 use std::sync::Arc;
10 use std::thread;
11
12 macro_rules! regex {
13 ($re:expr) => {
14 ::regex::Regex::new($re).unwrap()
15 };
16 }
17
main()18 fn main() {
19 let mut seq = String::with_capacity(51 * (1 << 20));
20 io::stdin().read_to_string(&mut seq).unwrap();
21 let ilen = seq.len();
22
23 seq = regex!(">[^\n]*\n|\n").replace_all(&seq, "").into_owned();
24 let clen = seq.len();
25 let seq_arc = Arc::new(seq.clone());
26
27 let variants = vec![
28 regex!("agggtaaa|tttaccct"),
29 regex!("[cgt]gggtaaa|tttaccc[acg]"),
30 regex!("a[act]ggtaaa|tttacc[agt]t"),
31 regex!("ag[act]gtaaa|tttac[agt]ct"),
32 regex!("agg[act]taaa|ttta[agt]cct"),
33 regex!("aggg[acg]aaa|ttt[cgt]ccct"),
34 regex!("agggt[cgt]aa|tt[acg]accct"),
35 regex!("agggta[cgt]a|t[acg]taccct"),
36 regex!("agggtaa[cgt]|[acg]ttaccct"),
37 ];
38 let mut counts = vec![];
39 for variant in variants {
40 let seq = seq_arc.clone();
41 let restr = variant.to_string();
42 let future = thread::spawn(move || variant.find_iter(&seq).count());
43 counts.push((restr, future));
44 }
45
46 let substs = vec![
47 (regex!("B"), "(c|g|t)"),
48 (regex!("D"), "(a|g|t)"),
49 (regex!("H"), "(a|c|t)"),
50 (regex!("K"), "(g|t)"),
51 (regex!("M"), "(a|c)"),
52 (regex!("N"), "(a|c|g|t)"),
53 (regex!("R"), "(a|g)"),
54 (regex!("S"), "(c|g)"),
55 (regex!("V"), "(a|c|g)"),
56 (regex!("W"), "(a|t)"),
57 (regex!("Y"), "(c|t)"),
58 ];
59 let mut seq = seq;
60 for (re, replacement) in substs {
61 seq = re.replace_all(&seq, replacement).into_owned();
62 }
63
64 for (variant, count) in counts {
65 println!("{} {}", variant, count.join().unwrap());
66 }
67 println!("\n{}\n{}\n{}", ilen, clen, seq.len());
68 }
69