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@@ -53,20 +53,50 @@ fn line_to_word(l: String) -> String {
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l
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}
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+// filtri {{{
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+
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+// i filtri dovrebbero essere creati da una struct Config{} creata parsando gli argomenti
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+
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+fn matches_regexp(regexp: &str) -> (impl std::ops::FnMut(&&String) -> bool) {
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+ // filtro
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+ let re = Regex::new(regexp).unwrap();
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+ move |w| re.is_match(w.as_str())
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+}
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+
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+
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+
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+fn sort_word(word: &str) -> Result<String, impl std::error::Error> {
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+ // funzione ausiliaria, utile per la is_anagram e cose simili
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+ // ritorna una COPIA
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+ // esempio: house -> ehosu
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+ let mut w_bytes = word.to_string().clone().into_bytes();
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+ w_bytes.sort();
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+ String::from_utf8(w_bytes)
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+}
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+
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+fn is_anagram(word: &str) -> (impl std::ops::FnMut(&&String) -> bool) {
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+ // filtro
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+ let sorted_word = sort_word(word).unwrap();
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+ move |w| {
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+ sorted_word == sort_word(w.as_str()).unwrap()
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+ }
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+}
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+
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+// filtri }}}
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+
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fn main() {
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let args: Vec<String> = env::args().collect();
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let fname = &args[1];
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- let regexp = &args[2];
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+ let pattern = &args[2];
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let f = File::open(fname).unwrap();
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let buf = BufReader::new(&f);
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let mut d = Dictionary::default();
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d.load_from_iterable(buf.lines());
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- let re = Regex::new(regexp).unwrap();
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- for w in d {
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- if re.is_match(w.as_str()) {
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- println!("{}", w)
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- }
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+ //let filter = matches_regexp(pattern);
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+ let filter = is_anagram(pattern);
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+ for w in d.words.iter().filter(filter) {
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+ println!("{}", w)
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}
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}
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