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use crate::common::RecordBigram;
use super::Word;
#[derive(Hash, Eq, PartialEq, Debug, Clone, Copy)]
pub struct WordPair {
pub word0: Word,
pub word1: Word,
}
impl WordPair {
pub fn convert(bigram_rows: Vec<RecordBigram>) -> Vec<WordPair> {
let mut wordpair_vec: Vec<WordPair> = vec!();
let mut number_of_parse_errors = 0;
for bigram_row in bigram_rows {
let word0 = match Word::parse(&bigram_row.word0) {
Some(value) => value,
None => {
number_of_parse_errors += 1;
continue;
}
};
let word1 = match Word::parse(&bigram_row.word1) {
Some(value) => value,
None => {
number_of_parse_errors += 1;
continue;
}
};
let pair = WordPair {
word0: word0,
word1: word1
};
wordpair_vec.push(pair);
}
if number_of_parse_errors > 0 {
error!("number of parse errors: {}", number_of_parse_errors);
}
wordpair_vec
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::common::parse_csv_data;
#[test]
fn test_10000_parse_ok() {
let data = "\
count;word0;word1
29843;START;mov
28868;add;mov
24764;mov;STOP
";
let mut input: &[u8] = data.as_bytes();
let records: Vec<RecordBigram> = parse_csv_data(&mut input).unwrap();
let wordpair_vec = WordPair::convert(records);
let strings: Vec<String> = wordpair_vec.iter().map(|record| {
format!("{} {}", record.word0, record.word1)
}).collect();
let strings_joined: String = strings.join(",");
assert_eq!(strings_joined, "START mov,add mov,mov STOP");
}
}
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