Решение на Text Info от Исмаил Алиджиков

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Към профила на Исмаил Алиджиков

Код

pub struct TextInfo {

text: String

}

impl TextInfo {

pub fn new(text: &str) -> Self {

TextInfo {

text: String::from(text),

}

}

pub fn char_count(&self) -> usize {

self.text.chars().count()

}

pub fn alphabetic_count(&self) -> usize {

TextInfo::latin_letter_count(self) + TextInfo::cyrillic_letter_count(self)

}

pub fn latin_letter_count(&self) -> usize {

return self.text.chars().into_iter()

.filter(|&ch| TextInfo::is_latin_letter(ch))

.count();

}

pub fn cyrillic_letter_count(&self) -> usize {

return self.text.chars().into_iter()

.filter(|&ch| TextInfo::is_cyrillic_letter(ch))

.count();

Тук мисля, че би могъл да опростиш нещата, ако използваш matches метода на &str: https://doc.rust-lang.org/std/primitive.str.html#method.matches. Нещо, което да пробваш, ако искаш. Освен това мисля, че можеш да викнеш директно .filter(TextInfo::is_latin_letter), но не съм го пробвал -- опитай :).

Андрей коментира преди около 8 години

}

pub fn word_count(&self) -> usize {

let mut word_count = 0;

let mut is_in_word = false;

for ch in self.text.chars() {

if ch.is_alphabetic() {

if !is_in_word {

word_count += 1;

is_in_word = true;

}

} else {

is_in_word = false;

}

}

word_count

}

pub fn sentence_count(&self) -> usize {

TextInfo::declarative_count(&self.text) +

TextInfo::question_count(&self.text) +

TextInfo::exclamatory_count(&self.text)

}

pub fn emotion(&self) -> String {

let declaratives = TextInfo::declarative_count(&self.text);

let questions = TextInfo::question_count(&self.text);

let exclamatories = TextInfo::exclamatory_count(&self.text);

if exclamatories > declaratives && exclamatories > questions {

String::from("😮")

} else if questions > declaratives && questions > exclamatories {

String::from("🤔")

} else {

String::from("😐")

}

}

fn is_latin_letter(ch: char) -> bool {

match ch {

'a'...'z' | 'A'...'Z' => true,

_ => false,

}

}

fn is_cyrillic_letter(ch: char) -> bool {

match ch {

'а' ... 'я' | 'А' ... 'Я' => true,

_ => false,

}

}

fn declarative_count(text: &String) -> usize {

TextInfo::sentence_count_by_punctuation(text, '.')

}

fn question_count(text: &String) -> usize {

TextInfo::sentence_count_by_punctuation(text, '?')

}

fn exclamatory_count(text: &String) -> usize {

TextInfo::sentence_count_by_punctuation(text, '!')

}

fn sentence_count_by_punctuation(text: &String, punctuation: char) -> usize {

let mut sentence_count = 0;

for (i, ch) in text.chars().enumerate() {

if ch == punctuation && i != 0 {

let previous = text.chars().nth(i - 1).unwrap();

if !TextInfo::is_sentence_punctuation(previous) && !previous.is_whitespace() {

sentence_count += 1;

}

}

}

sentence_count

}

fn is_sentence_punctuation(ch: char) -> bool {

ch == '.' || ch == '?' || ch == '!'

}

}

Лог от изпълнението

Compiling solution v0.1.0 (file:///tmp/d20171026-5817-sknuz0/solution)
invalid expression
!1248 = !DIExpression(6, 34, 0, 6)
invalid expression
!1249 = !DIExpression(6, 34, 0, 6)
    Finished dev [unoptimized + debuginfo] target(s) in 3.39 secs
     Running target/debug/deps/solution-f5dd4e94aa395cae

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

     Running target/debug/deps/solution_test-c3b431457e2a7a27

running 15 tests
test solution_test::test_alpha_count ... ok
test solution_test::test_alpha_count_2 ... ok
test solution_test::test_char_count ... ok
test solution_test::test_cyrillic_letter_count ... ok
test solution_test::test_emotions ... ok
test solution_test::test_emotions_repeated_punctuation ... ok
test solution_test::test_empty_string ... ok
test solution_test::test_latin_letter_count ... ok
test solution_test::test_sentence_count ... ok
test solution_test::test_sentence_count_2 ... ok
test solution_test::test_triple_dots_count ... ok
test solution_test::test_unicode_char_count ... ok
test solution_test::test_word_count ... ok
test solution_test::test_word_count_2 ... ok
test solution_test::test_word_count_3 ... ok

test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

   Doc-tests solution

running 0 tests

test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

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