Решение на Text Info от Димитър Николов

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Към профила на Димитър Николов

Код

#[derive(Debug)]

pub struct TextInfo {

my_str: String,

}

impl TextInfo {

// Allocation

pub fn new( s: &str ) -> TextInfo {

TextInfo {

my_str: String::from( s ),

}

}

// Char count

pub fn char_count( &self ) -> usize {

self.my_str.chars().count()

}

// Letter count

pub fn alphabetic_count( &self ) -> usize {

let mut count = 0_usize;

for ch in self.my_str.chars() {

if ch.is_alphabetic() {

count += 1;

}

}

count

}

// Latin letter count

pub fn latin_letter_count( &self ) -> usize {

let mut count = 0_usize;

for ch in self.my_str.chars() {

if ( ch >= 'a' && ch <= 'z' )

|| ( ch >= 'A' && ch <= 'Z' ) {

count += 1;

}

}

count

}

// Cyrillic letter count

pub fn cyrillic_letter_count( &self ) -> usize {

let mut count = 0_usize;

for ch in self.my_str.chars() {

if ( ch >= 'а' && ch <= 'я' )

|| ( ch >= 'А' && ch <= 'Я' ) {

count += 1;

}

}

count

}

// Word count

pub fn word_count( &self ) -> usize {

let mut count = 0_usize;

let mut is_over = false;

for ch in self.my_str.chars() {

if ( is_over == false )

&& ( ch == ' ' || ch == ',' || ch == '!' || ch == '.' || ch == '?' ) {

count += 1;

is_over = true;

}

if ( is_over == true )

&& ( ch != ' ' && ch != ',' && ch != '!' && ch != '.' && ch != '?' ) {

is_over = false;

}

}

count - 1

}

// Sentance count

pub fn sentence_count( &self ) -> usize {

let mut count = 0_usize;

let mut is_over = false;

for ch in self.my_str.chars() {

if ( is_over == false )

&& ( ch == '!' || ch == '.' || ch == '?' ) {

count += 1;

is_over = true;

}

if ( is_over == true )

&& ( ch != '!' && ch != '.' && ch != '?' ) {

is_over = false;

}

}

count

}

// Emotion gauge

// Treats multiple symbols like "!?!" by judging the last value or in this case '!'

pub fn emotion( &self ) -> String {

// .

let mut count_dot = 0_u32;

// !

let mut count_excl = 0_u32;

// ?

let mut count_ques = 0_u32;

let mut temp_char : char;

let mut is_over = false;

for (pos, ch) in self.my_str.chars().enumerate() {

if ( is_over == false )

&& ( ch == '!' || ch == '.' || ch == '?' ) {

is_over = true;

}

if ( is_over == true )

&& ( ch != '!' && ch != '.' && ch != '?' ) {

temp_char = self.my_str.chars().nth(pos - 1).unwrap();

match temp_char {

'.' => count_dot += 1,

'!' => count_excl += 1,

'?' => count_ques += 1,

// WTF does it want me to do this case?

// I left this great piece of code there to substitute doing nothing.

_ => count_ques = count_ques

Rust няма как да знае, че си проверил за всички възможни символи по-горе с (ch != '!'..... Всъщност, ти дори не използваш ch, а вземаш символа наново (не съм сигурен защо), но както и да е. В случай, че има някакъв ръкав, който не може да се стигне, това може да се комуникира с макроса unreachable!: https://doc.rust-lang.org/1.3.0/std/macro.unreachable!.html. Ако кода някога удари там, ще гръмне, така че ще знаеш, че имаш някаква грешка.

Андрей коментира преди почти 8 години

}

is_over = false;

}

}

if count_excl > count_dot {

if count_excl > count_ques {

String::from( "😮" )

}

else {

String::from( "🤔" )

}

}

else {

if count_ques > count_dot {

String::from( "🤔" )

}

else {

String::from( "😐" )

}

}

}

}

Лог от изпълнението

Compiling solution v0.1.0 (file:///tmp/d20171026-5817-sdjs6z/solution)
invalid expression
!1230 = !DIExpression(6, 34, 0, 6)
invalid expression
!1229 = !DIExpression(6, 34, 0, 6)
    Finished dev [unoptimized + debuginfo] target(s) in 3.40 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 ... FAILED
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 ... FAILED
test solution_test::test_word_count_3 ... FAILED

failures:

---- solution_test::test_empty_string stdout ----
	thread 'solution_test::test_empty_string' panicked at 'attempt to subtract with overflow', src/lib.rs:78:9
note: Run with `RUST_BACKTRACE=1` for a backtrace.

---- solution_test::test_word_count_2 stdout ----
	thread 'solution_test::test_word_count_2' panicked at 'assertion failed: `(left == right)`
  left: `9`,
 right: `8`', tests/solution_test.rs:50:4

---- solution_test::test_word_count_3 stdout ----
	thread 'solution_test::test_word_count_3' panicked at 'assertion failed: `(left == right)`
  left: `7`,
 right: `4`', tests/solution_test.rs:56:4


failures:
    solution_test::test_empty_string
    solution_test::test_word_count_2
    solution_test::test_word_count_3

test result: FAILED. 12 passed; 3 failed; 0 ignored; 0 measured; 0 filtered out

error: test failed, to rerun pass '--test solution_test'

История (1 версия и 3 коментара)