Turn into a "proper" library.
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|
||||||
name = "winapi-x86_64-pc-windows-gnu"
|
|
||||||
version = "0.4.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows-sys"
|
|
||||||
version = "0.52.0"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
|
|
||||||
dependencies = [
|
|
||||||
"windows-targets",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows-targets"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
|
|
||||||
dependencies = [
|
|
||||||
"windows_aarch64_gnullvm",
|
|
||||||
"windows_aarch64_msvc",
|
|
||||||
"windows_i686_gnu",
|
|
||||||
"windows_i686_gnullvm",
|
|
||||||
"windows_i686_msvc",
|
|
||||||
"windows_x86_64_gnu",
|
|
||||||
"windows_x86_64_gnullvm",
|
|
||||||
"windows_x86_64_msvc",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_aarch64_gnullvm"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_aarch64_msvc"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_i686_gnu"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_i686_gnullvm"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_i686_msvc"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_x86_64_gnu"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_x86_64_gnullvm"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "windows_x86_64_msvc"
|
|
||||||
version = "0.52.6"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "zerocopy"
|
|
||||||
version = "0.7.35"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
|
|
||||||
dependencies = [
|
|
||||||
"byteorder",
|
|
||||||
"zerocopy-derive",
|
|
||||||
]
|
|
||||||
|
|
||||||
[[package]]
|
|
||||||
name = "zerocopy-derive"
|
|
||||||
version = "0.7.35"
|
|
||||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
|
||||||
checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
|
|
||||||
dependencies = [
|
|
||||||
"proc-macro2",
|
|
||||||
"quote",
|
|
||||||
"syn",
|
|
||||||
]
|
|
||||||
|
|
@ -3,10 +3,11 @@ name = "furigana_gen"
|
||||||
version = "0.1.0"
|
version = "0.1.0"
|
||||||
edition = "2021"
|
edition = "2021"
|
||||||
|
|
||||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
[lib]
|
||||||
|
name = "furigana_gen"
|
||||||
|
path = "src/lib.rs"
|
||||||
|
|
||||||
[dependencies]
|
[dependencies]
|
||||||
vibrato = "0.5"
|
vibrato = "0.5"
|
||||||
lz4_flex = "0.11"
|
lz4_flex = "0.11"
|
||||||
regex = "1.10"
|
quick-xml = "0.36.1"
|
||||||
once_cell = "1.19"
|
|
||||||
|
|
|
||||||
25
build.rs
Normal file
25
build.rs
Normal file
|
|
@ -0,0 +1,25 @@
|
||||||
|
// Generate table for traversal order of quad BVHs.
|
||||||
|
|
||||||
|
use std::{env, fs::File, io::Write, path::Path};
|
||||||
|
|
||||||
|
const KANJI: &str = include_str!("data/kanji_frequency.txt");
|
||||||
|
|
||||||
|
fn main() {
|
||||||
|
// Write traversal table to Rust file
|
||||||
|
let out_dir = env::var("OUT_DIR").unwrap();
|
||||||
|
let dest_path = Path::new(&out_dir).join("kanji_freq_inc.rs");
|
||||||
|
let mut f = File::create(&dest_path).unwrap();
|
||||||
|
|
||||||
|
f.write_all("const KANJI_FREQ: &[char] = &[".as_bytes())
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
for c in KANJI.chars() {
|
||||||
|
if c.is_whitespace() {
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
f.write_all(format!("\n'{}',", c).as_bytes()).unwrap();
|
||||||
|
}
|
||||||
|
|
||||||
|
f.write_all("\n];".as_bytes()).unwrap();
|
||||||
|
}
|
||||||
4001
data/kanji_frequency.txt
Normal file
4001
data/kanji_frequency.txt
Normal file
File diff suppressed because it is too large
Load Diff
Binary file not shown.
67
src/learner.rs
Normal file
67
src/learner.rs
Normal file
|
|
@ -0,0 +1,67 @@
|
||||||
|
use std::collections::HashMap;
|
||||||
|
|
||||||
|
const MIN_MAX_DISTANCE: usize = 100;
|
||||||
|
const MAX_MAX_DISTANCE: usize = 10000;
|
||||||
|
|
||||||
|
#[derive(Debug, Copy, Clone)]
|
||||||
|
struct WordStats {
|
||||||
|
// The last position (in words processed) that this word was seen at.
|
||||||
|
last_seen_at: usize,
|
||||||
|
|
||||||
|
// How many times this word has been seen so far.
|
||||||
|
times_seen: usize,
|
||||||
|
|
||||||
|
// Maximum distance before helps is needed again.
|
||||||
|
max_distance: usize,
|
||||||
|
}
|
||||||
|
|
||||||
|
pub struct Learner {
|
||||||
|
stats: HashMap<String, WordStats>,
|
||||||
|
words_processed: usize,
|
||||||
|
times_seen_threshold: usize,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl Learner {
|
||||||
|
pub fn new(times_seen_threshold: usize) -> Self {
|
||||||
|
Self {
|
||||||
|
stats: HashMap::new(),
|
||||||
|
words_processed: 0,
|
||||||
|
times_seen_threshold: times_seen_threshold,
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn record(&mut self, word: &str) {
|
||||||
|
self.stats
|
||||||
|
.entry(word.to_string())
|
||||||
|
.and_modify(|stats| {
|
||||||
|
let distance = self.words_processed - stats.last_seen_at;
|
||||||
|
|
||||||
|
stats.last_seen_at = self.words_processed;
|
||||||
|
stats.times_seen += 1;
|
||||||
|
if stats.times_seen <= self.times_seen_threshold {
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if distance < stats.max_distance {
|
||||||
|
stats.max_distance += distance.min((stats.max_distance as f64 * 0.5) as usize);
|
||||||
|
}
|
||||||
|
|
||||||
|
stats.max_distance = stats.max_distance.min(MAX_MAX_DISTANCE);
|
||||||
|
})
|
||||||
|
.or_insert(WordStats {
|
||||||
|
last_seen_at: self.words_processed,
|
||||||
|
times_seen: 1,
|
||||||
|
max_distance: MIN_MAX_DISTANCE,
|
||||||
|
});
|
||||||
|
self.words_processed += 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn needs_help(&self, word: &str) -> bool {
|
||||||
|
if let Some(stats) = self.stats.get(word) {
|
||||||
|
let distance = self.words_processed - stats.last_seen_at;
|
||||||
|
stats.times_seen <= self.times_seen_threshold || distance > stats.max_distance
|
||||||
|
} else {
|
||||||
|
true
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
516
src/lib.rs
Normal file
516
src/lib.rs
Normal file
|
|
@ -0,0 +1,516 @@
|
||||||
|
mod learner;
|
||||||
|
|
||||||
|
use std::{
|
||||||
|
collections::HashSet,
|
||||||
|
// fs::File,
|
||||||
|
io::{Cursor, Read},
|
||||||
|
};
|
||||||
|
|
||||||
|
use lz4_flex::frame::FrameDecoder;
|
||||||
|
use quick_xml::events::Event;
|
||||||
|
use vibrato::{Dictionary, Tokenizer};
|
||||||
|
|
||||||
|
use learner::Learner;
|
||||||
|
|
||||||
|
// Include KANJI_FREQ, a frequency-ordered array of kanji characters.
|
||||||
|
include!(concat!(env!("OUT_DIR"), "/kanji_freq_inc.rs"));
|
||||||
|
|
||||||
|
const DICT: &[u8] = include_bytes!("../data/dictionary/system.dic.lz4");
|
||||||
|
|
||||||
|
pub struct FuriganaGenerator {
|
||||||
|
tokenizer: Tokenizer,
|
||||||
|
exclude_kanji: HashSet<char>,
|
||||||
|
learner: Learner,
|
||||||
|
}
|
||||||
|
|
||||||
|
impl FuriganaGenerator {
|
||||||
|
// `exclude_count`: exclude the N most frequent kanji from furigana.
|
||||||
|
// Specifically, words made up *entirely* of those kanji will be excluded.
|
||||||
|
// If a word has some kanji that aren't in that set, even if it also has
|
||||||
|
// some that are, it will still get furigana.
|
||||||
|
pub fn new(exclude_count: usize, learn_mode: bool) -> Self {
|
||||||
|
let dict = {
|
||||||
|
// Note: we could just pass the decoder straight to `Dictionary::read()`
|
||||||
|
// below, and it would work. However, that ends up being slower than
|
||||||
|
// first decompressing the whole thing ahead of time.
|
||||||
|
let mut decoder = FrameDecoder::new(Cursor::new(DICT));
|
||||||
|
let mut data = Vec::new();
|
||||||
|
decoder.read_to_end(&mut data).unwrap();
|
||||||
|
|
||||||
|
Dictionary::read(Cursor::new(&data)).unwrap()
|
||||||
|
};
|
||||||
|
|
||||||
|
let exclude_kanji = {
|
||||||
|
let mut set = HashSet::new();
|
||||||
|
for &c in KANJI_FREQ.iter().take(exclude_count) {
|
||||||
|
set.insert(c);
|
||||||
|
}
|
||||||
|
set
|
||||||
|
};
|
||||||
|
|
||||||
|
Self {
|
||||||
|
tokenizer: Tokenizer::new(dict),
|
||||||
|
exclude_kanji: exclude_kanji,
|
||||||
|
learner: Learner::new(if learn_mode { 5 } else { usize::MAX }),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn add_html_furigana(&mut self, text: &str) -> String {
|
||||||
|
add_html_furigana_skip_already_ruby(
|
||||||
|
&text,
|
||||||
|
&self.tokenizer,
|
||||||
|
&self.exclude_kanji,
|
||||||
|
&mut self.learner,
|
||||||
|
)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn to_str<B: std::ops::Deref<Target = [u8]>>(bytes: &B) -> &str {
|
||||||
|
std::str::from_utf8(&bytes.deref()).unwrap()
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Like `add_html_furigana()`, but skips text that already has ruby on it, to it doesn't get double-ruby.
|
||||||
|
fn add_html_furigana_skip_already_ruby(
|
||||||
|
text: &str,
|
||||||
|
tokenizer: &Tokenizer,
|
||||||
|
exclude_kanji: &HashSet<char>,
|
||||||
|
learner: &mut Learner,
|
||||||
|
) -> String {
|
||||||
|
let mut reader = quick_xml::Reader::from_str(text);
|
||||||
|
|
||||||
|
let mut new_text = String::new();
|
||||||
|
let mut rubys: i32 = 0;
|
||||||
|
|
||||||
|
loop {
|
||||||
|
match reader.read_event() {
|
||||||
|
Err(e) => panic!("Error at position {}: {:?}", reader.error_position(), e),
|
||||||
|
Ok(Event::Eof) => break,
|
||||||
|
|
||||||
|
Ok(Event::Start(e)) => {
|
||||||
|
if e.name().into_inner() == b"ruby" {
|
||||||
|
rubys += 1;
|
||||||
|
}
|
||||||
|
write_xml(&mut new_text, &Event::Start(e));
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(Event::End(e)) => {
|
||||||
|
if e.name().into_inner() == b"ruby" {
|
||||||
|
rubys -= 1;
|
||||||
|
}
|
||||||
|
write_xml(&mut new_text, &Event::End(e));
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(Event::Text(e)) => {
|
||||||
|
if rubys <= 0 {
|
||||||
|
new_text.push_str(&add_html_furigana(
|
||||||
|
to_str(&e),
|
||||||
|
tokenizer,
|
||||||
|
exclude_kanji,
|
||||||
|
learner,
|
||||||
|
));
|
||||||
|
} else {
|
||||||
|
write_xml(&mut new_text, &Event::Text(e));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// All other events, just re-write them verbatim.
|
||||||
|
Ok(e) => write_xml(&mut new_text, &e),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
new_text
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Takes an xml event and writes it verbatim to the given string.
|
||||||
|
///
|
||||||
|
/// NOTE: really what we want is for the events to provide their byte index range
|
||||||
|
/// in the original text, so we could just write that, and even double-check that
|
||||||
|
/// we're not missing anything. But for some reason quick_xml doesn't provide
|
||||||
|
/// that information.
|
||||||
|
fn write_xml(text: &mut String, event: &quick_xml::events::Event) {
|
||||||
|
match event {
|
||||||
|
Event::Start(e) => {
|
||||||
|
text.push_str("<");
|
||||||
|
text.push_str(to_str(e));
|
||||||
|
text.push_str(">");
|
||||||
|
}
|
||||||
|
|
||||||
|
Event::End(e) => {
|
||||||
|
text.push_str("</");
|
||||||
|
text.push_str(to_str(e));
|
||||||
|
text.push_str(">");
|
||||||
|
}
|
||||||
|
|
||||||
|
Event::Empty(e) => {
|
||||||
|
text.push_str("<");
|
||||||
|
text.push_str(to_str(e));
|
||||||
|
text.push_str("/>");
|
||||||
|
}
|
||||||
|
|
||||||
|
Event::CData(e) => {
|
||||||
|
text.push_str("<![CDATA[");
|
||||||
|
text.push_str(to_str(e));
|
||||||
|
text.push_str("]]>");
|
||||||
|
}
|
||||||
|
|
||||||
|
Event::Comment(e) => {
|
||||||
|
text.push_str("<!--");
|
||||||
|
text.push_str(to_str(e));
|
||||||
|
text.push_str("-->");
|
||||||
|
}
|
||||||
|
|
||||||
|
Event::Decl(e) => {
|
||||||
|
text.push_str("<?");
|
||||||
|
text.push_str(to_str(e));
|
||||||
|
text.push_str("?>");
|
||||||
|
}
|
||||||
|
|
||||||
|
Event::PI(e) => {
|
||||||
|
text.push_str("<?");
|
||||||
|
text.push_str(to_str(e));
|
||||||
|
text.push_str("?>");
|
||||||
|
}
|
||||||
|
|
||||||
|
Event::DocType(e) => {
|
||||||
|
text.push_str("<!DOCTYPE");
|
||||||
|
text.push_str(to_str(e));
|
||||||
|
text.push_str(">");
|
||||||
|
}
|
||||||
|
|
||||||
|
Event::Text(e) => text.push_str(to_str(e)),
|
||||||
|
|
||||||
|
_ => unreachable!(),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Adds furigana to Japanese text, using html ruby tags.
|
||||||
|
fn add_html_furigana(
|
||||||
|
text: &str,
|
||||||
|
tokenizer: &Tokenizer,
|
||||||
|
exclude_kanji: &HashSet<char>,
|
||||||
|
learner: &mut Learner,
|
||||||
|
) -> String {
|
||||||
|
let mut worker = tokenizer.new_worker();
|
||||||
|
|
||||||
|
worker.reset_sentence(text);
|
||||||
|
worker.tokenize();
|
||||||
|
|
||||||
|
let mut new_text = String::new();
|
||||||
|
for i in 0..worker.num_tokens() {
|
||||||
|
let t = worker.token(i);
|
||||||
|
let surface = t.surface();
|
||||||
|
|
||||||
|
let needs_help = learner.needs_help(surface);
|
||||||
|
learner.record(surface);
|
||||||
|
|
||||||
|
if !needs_help {
|
||||||
|
new_text.push_str(surface);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
let kana = t.feature().split(",").nth(1).unwrap();
|
||||||
|
|
||||||
|
let furigana_text = apply_furigana(surface, kana, exclude_kanji);
|
||||||
|
|
||||||
|
for (surf, furi) in furigana_text.iter() {
|
||||||
|
if furi.is_empty() {
|
||||||
|
new_text.push_str(surf);
|
||||||
|
continue;
|
||||||
|
}
|
||||||
|
|
||||||
|
new_text.push_str("<ruby>");
|
||||||
|
new_text.push_str(surf);
|
||||||
|
new_text.push_str("<rt>");
|
||||||
|
new_text.push_str(furi);
|
||||||
|
new_text.push_str("</rt></ruby>");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
new_text
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Returns a segmented list of (surface, furigana) pairs.
|
||||||
|
///
|
||||||
|
/// The furigana component of a pair may be empty, indicating no
|
||||||
|
/// furigana is needed for that surface element.
|
||||||
|
fn apply_furigana<'a>(
|
||||||
|
surface: &'a str,
|
||||||
|
kana: &'a str,
|
||||||
|
exclude_kanji: &HashSet<char>,
|
||||||
|
) -> Vec<(&'a str, &'a str)> {
|
||||||
|
let mut out = Vec::new();
|
||||||
|
|
||||||
|
if furigana_unneeded(surface, exclude_kanji) {
|
||||||
|
out.push((surface, ""));
|
||||||
|
return out;
|
||||||
|
}
|
||||||
|
|
||||||
|
let mut surface = surface;
|
||||||
|
let mut kana = kana;
|
||||||
|
|
||||||
|
// Trim any kana from the start.
|
||||||
|
{
|
||||||
|
let mut start_s = 0;
|
||||||
|
let mut start_k = 0;
|
||||||
|
for (sc, kc) in surface.chars().zip(kana.chars()) {
|
||||||
|
if is_equivalent_kana(sc, kc) {
|
||||||
|
start_s += sc.len_utf8();
|
||||||
|
start_k += kc.len_utf8();
|
||||||
|
} else {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
out.push((&surface[..start_s], ""));
|
||||||
|
surface = &surface[start_s..];
|
||||||
|
kana = &kana[start_k..];
|
||||||
|
}
|
||||||
|
|
||||||
|
// Trim any kana from the end.
|
||||||
|
{
|
||||||
|
let mut end_s = surface.len();
|
||||||
|
let mut end_k = kana.len();
|
||||||
|
for (sc, kc) in surface.chars().rev().zip(kana.chars().rev()) {
|
||||||
|
if is_equivalent_kana(sc, kc) {
|
||||||
|
end_s -= sc.len_utf8();
|
||||||
|
end_k -= kc.len_utf8();
|
||||||
|
} else {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
out.push((&surface[end_s..], ""));
|
||||||
|
surface = &surface[..end_s];
|
||||||
|
kana = &kana[..end_k];
|
||||||
|
}
|
||||||
|
|
||||||
|
// Try to uniquely match kana in the middle.
|
||||||
|
//
|
||||||
|
// This is just best-effort, and bails in any non-trivial cases.
|
||||||
|
while let Some((si, sc)) = surface.char_indices().find(|(_, c)| is_kana(*c)) {
|
||||||
|
// If there's more than one match, bail.
|
||||||
|
let equivalent_kana_count = kana
|
||||||
|
.chars()
|
||||||
|
.map(|c| is_equivalent_kana(c, sc))
|
||||||
|
.fold(0usize, |count, hit| count + hit as usize);
|
||||||
|
if equivalent_kana_count != 1 {
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Find the one match.
|
||||||
|
let (ki, kc) = kana
|
||||||
|
.char_indices()
|
||||||
|
.find(|(_, c)| is_equivalent_kana(sc, *c))
|
||||||
|
.unwrap();
|
||||||
|
|
||||||
|
// Insert the segments.
|
||||||
|
out.insert(out.len() - 2, (&surface[..si], &kana[..ki]));
|
||||||
|
out.insert(out.len() - 2, (&surface[si..(si + sc.len_utf8())], ""));
|
||||||
|
surface = &surface[(si + sc.len_utf8())..];
|
||||||
|
kana = &kana[(ki + kc.len_utf8())..];
|
||||||
|
}
|
||||||
|
|
||||||
|
// Left over.
|
||||||
|
out.insert(out.len() - 2, (surface, kana));
|
||||||
|
|
||||||
|
out.iter().filter(|(s, _)| !s.is_empty()).copied().collect()
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Due to the way this is used, this isn't meant to be exact, but instead
|
||||||
|
/// liberal in what it considers equivalent.
|
||||||
|
fn is_equivalent_kana(a: char, b: char) -> bool {
|
||||||
|
const PAIRS: &[[char; 2]] = &[['は', 'わ'], ['を', 'お'], ['づ', 'ず'], ['へ', 'え']];
|
||||||
|
const VOWELS: &[char] = &['あ', 'い', 'う', 'え', 'お', 'ぁ', 'ぃ', 'ぅ', 'ぇ', 'ぉ'];
|
||||||
|
|
||||||
|
let (a, b) = match (normalize_kana(a), normalize_kana(b)) {
|
||||||
|
(Some(a), Some(b)) => (a, b),
|
||||||
|
_ => return false,
|
||||||
|
};
|
||||||
|
|
||||||
|
if a == b {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
if a == 'ー' && VOWELS.contains(&b) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
if b == 'ー' && VOWELS.contains(&a) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
for &[c, d] in PAIRS {
|
||||||
|
if (a == c && b == d) || (a == d && b == c) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
false
|
||||||
|
}
|
||||||
|
|
||||||
|
const HIRAGANA: u32 = 0x3041;
|
||||||
|
const KATAKANA: u32 = 0x30A1;
|
||||||
|
const KANA_COUNT: u32 = 0x3097 - HIRAGANA;
|
||||||
|
|
||||||
|
pub fn is_kana(c: char) -> bool {
|
||||||
|
if c == 'ー' {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
let c = c as u32;
|
||||||
|
|
||||||
|
if c >= HIRAGANA && c < (HIRAGANA + KANA_COUNT) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
if c >= KATAKANA && c < (KATAKANA + KANA_COUNT) {
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn normalize_kana(c: char) -> Option<char> {
|
||||||
|
if !is_kana(c) {
|
||||||
|
return None;
|
||||||
|
}
|
||||||
|
|
||||||
|
Some(katakana_to_hiragana(c).unwrap_or(c))
|
||||||
|
}
|
||||||
|
|
||||||
|
/// Returns true if furigana defininitely isn't needed.
|
||||||
|
pub fn furigana_unneeded(text: &str, exclude_kanji: &HashSet<char>) -> bool {
|
||||||
|
text.chars().all(|c| {
|
||||||
|
is_kana(c) || c.is_ascii() || c.is_numeric() || c == '々' || exclude_kanji.contains(&c)
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn hiragana_to_katakana(c: char) -> Option<char> {
|
||||||
|
let c = c as u32;
|
||||||
|
if c >= HIRAGANA && c < (HIRAGANA + KANA_COUNT) {
|
||||||
|
char::try_from(c + KATAKANA - HIRAGANA).ok()
|
||||||
|
} else {
|
||||||
|
None
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn katakana_to_hiragana(c: char) -> Option<char> {
|
||||||
|
let c = c as u32;
|
||||||
|
if c >= KATAKANA && c < (KATAKANA + KANA_COUNT) {
|
||||||
|
char::try_from(c - KATAKANA + HIRAGANA).ok()
|
||||||
|
} else {
|
||||||
|
None
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
#[cfg(test)]
|
||||||
|
mod tests {
|
||||||
|
use super::*;
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn apply_furigana_01() {
|
||||||
|
let surface = "へぇ";
|
||||||
|
let kana = "ヘー";
|
||||||
|
let pairs = apply_furigana(surface, kana, &HashSet::new());
|
||||||
|
|
||||||
|
assert_eq!(&[("へぇ", "")], &pairs[..]);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn apply_furigana_02() {
|
||||||
|
let surface = "へぇー";
|
||||||
|
let kana = "ヘー";
|
||||||
|
let pairs = apply_furigana(surface, kana, &HashSet::new());
|
||||||
|
|
||||||
|
assert_eq!(&[("へぇー", "")], &pairs[..]);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn apply_furigana_03() {
|
||||||
|
let surface = "へ";
|
||||||
|
let kana = "え";
|
||||||
|
let pairs = apply_furigana(surface, kana, &HashSet::new());
|
||||||
|
|
||||||
|
assert_eq!(&[("へ", "")], &pairs[..]);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn apply_furigana_04() {
|
||||||
|
let surface = "食べる";
|
||||||
|
let kana = "タベル";
|
||||||
|
let pairs = apply_furigana(surface, kana, &HashSet::new());
|
||||||
|
|
||||||
|
assert_eq!(&[("食", "タ"), ("べる", "")], &pairs[..]);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn apply_furigana_05() {
|
||||||
|
let surface = "流れ出す";
|
||||||
|
let kana = "ながれだす";
|
||||||
|
let pairs = apply_furigana(surface, kana, &HashSet::new());
|
||||||
|
|
||||||
|
assert_eq!(
|
||||||
|
&[("流", "なが"), ("れ", ""), ("出", "だ"), ("す", "")],
|
||||||
|
&pairs[..]
|
||||||
|
);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn apply_furigana_06() {
|
||||||
|
let surface = "物の怪";
|
||||||
|
let kana = "もののけ";
|
||||||
|
let pairs = apply_furigana(surface, kana, &HashSet::new());
|
||||||
|
|
||||||
|
assert_eq!(&[("物の怪", "もののけ")], &pairs[..]);
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn is_equivalent_kana_01() {
|
||||||
|
assert!(is_equivalent_kana('か', 'カ'));
|
||||||
|
assert!(is_equivalent_kana('カ', 'か'));
|
||||||
|
assert!(is_equivalent_kana('ぁ', 'ァ'));
|
||||||
|
assert!(is_equivalent_kana('ァ', 'ぁ'));
|
||||||
|
assert!(is_equivalent_kana('は', 'わ'));
|
||||||
|
assert!(is_equivalent_kana('わ', 'は'));
|
||||||
|
assert!(is_equivalent_kana('を', 'お'));
|
||||||
|
assert!(is_equivalent_kana('お', 'を'));
|
||||||
|
assert!(is_equivalent_kana('づ', 'ず'));
|
||||||
|
assert!(is_equivalent_kana('ず', 'づ'));
|
||||||
|
assert!(is_equivalent_kana('ー', 'あ'));
|
||||||
|
assert!(is_equivalent_kana('あ', 'ー'));
|
||||||
|
assert!(is_equivalent_kana('ー', 'ぁ'));
|
||||||
|
assert!(is_equivalent_kana('ぁ', 'ー'));
|
||||||
|
|
||||||
|
assert!(!is_equivalent_kana('は', 'ば'));
|
||||||
|
assert!(!is_equivalent_kana('ー', 'か'));
|
||||||
|
assert!(!is_equivalent_kana('た', '食'));
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn tokenize_01() {
|
||||||
|
let gen = FuriganaGenerator::new(0, false);
|
||||||
|
|
||||||
|
let mut worker = gen.tokenizer.new_worker();
|
||||||
|
worker.reset_sentence("食べている");
|
||||||
|
worker.tokenize();
|
||||||
|
|
||||||
|
assert_eq!(3, worker.num_tokens());
|
||||||
|
assert_eq!("食べ", worker.token(0).surface());
|
||||||
|
assert_eq!("動詞-一般,タベ", worker.token(0).feature());
|
||||||
|
assert_eq!("て", worker.token(1).surface());
|
||||||
|
assert_eq!("助詞-接続助詞,テ", worker.token(1).feature());
|
||||||
|
assert_eq!("いる", worker.token(2).surface());
|
||||||
|
assert_eq!("動詞-非自立可能,イル", worker.token(2).feature());
|
||||||
|
}
|
||||||
|
|
||||||
|
#[test]
|
||||||
|
fn add_html_furigana_01() {
|
||||||
|
let mut gen = FuriganaGenerator::new(0, false);
|
||||||
|
|
||||||
|
let text = gen
|
||||||
|
.add_html_furigana(r#"<sup class="食う">食べる</sup>のは<ruby>良</ruby>いね！<hi />"#);
|
||||||
|
|
||||||
|
assert_eq!(
|
||||||
|
text,
|
||||||
|
r#"<sup class="食う"><ruby>食<rt>タ</rt></ruby>べる</sup>のは<ruby>良</ruby>いね！<hi />"#
|
||||||
|
);
|
||||||
|
}
|
||||||
|
}
|
||||||
216
src/main.rs
216
src/main.rs
|
|
@ -1,216 +0,0 @@
|
||||||
use std::{
|
|
||||||
// fs::File,
|
|
||||||
io::{Cursor, Read},
|
|
||||||
};
|
|
||||||
|
|
||||||
use lz4_flex::frame::FrameDecoder;
|
|
||||||
use once_cell::sync::Lazy;
|
|
||||||
use regex::Regex;
|
|
||||||
use vibrato::{Dictionary, Tokenizer};
|
|
||||||
|
|
||||||
const DICT: &[u8] = include_bytes!("../dictionary/system.dic.lz4");
|
|
||||||
|
|
||||||
fn main() {
|
|
||||||
let dict = {
|
|
||||||
// Note: we could just pass the decoder straight to `Dictionary::read()`
|
|
||||||
// below, and it would work. However, that ends up being slower than
|
|
||||||
// first decompressing the whole thing ahead of time.
|
|
||||||
let mut decoder = FrameDecoder::new(Cursor::new(DICT));
|
|
||||||
let mut data = Vec::new();
|
|
||||||
decoder.read_to_end(&mut data).unwrap();
|
|
||||||
|
|
||||||
Dictionary::read(Cursor::new(&data)).unwrap()
|
|
||||||
};
|
|
||||||
|
|
||||||
let text = {
|
|
||||||
let mut text = String::new();
|
|
||||||
std::io::stdin().read_to_string(&mut text).unwrap();
|
|
||||||
text
|
|
||||||
};
|
|
||||||
|
|
||||||
let tokenizer = Tokenizer::new(dict);
|
|
||||||
print!("{}", add_html_furigana_skip_already_ruby(&text, &tokenizer));
|
|
||||||
}
|
|
||||||
|
|
||||||
/// Like `add_html_furigana()`, but skips text that already has ruby on it, to it doesn't get double-ruby.
|
|
||||||
fn add_html_furigana_skip_already_ruby(text: &str, tokenizer: &Tokenizer) -> String {
|
|
||||||
static ALREADY_RUBY: Lazy<Regex> = Lazy::new(|| Regex::new(r"<ruby.*?>.*?</ruby>").unwrap());
|
|
||||||
|
|
||||||
let mut new_text = String::new();
|
|
||||||
let mut last_byte_index = 0;
|
|
||||||
for hit in ALREADY_RUBY.find_iter(text) {
|
|
||||||
new_text.push_str(&add_html_furigana(
|
|
||||||
&text[last_byte_index..hit.start()],
|
|
||||||
tokenizer,
|
|
||||||
));
|
|
||||||
new_text.push_str(hit.as_str());
|
|
||||||
last_byte_index = hit.end();
|
|
||||||
}
|
|
||||||
|
|
||||||
new_text.push_str(&add_html_furigana(&text[last_byte_index..], tokenizer));
|
|
||||||
|
|
||||||
new_text
|
|
||||||
}
|
|
||||||
|
|
||||||
/// Adds furigana to Japanese text, using html ruby tags.
|
|
||||||
fn add_html_furigana(text: &str, tokenizer: &Tokenizer) -> String {
|
|
||||||
let mut worker = tokenizer.new_worker();
|
|
||||||
|
|
||||||
worker.reset_sentence(text);
|
|
||||||
worker.tokenize();
|
|
||||||
|
|
||||||
let mut new_text = String::new();
|
|
||||||
for i in 0..worker.num_tokens() {
|
|
||||||
let t = worker.token(i);
|
|
||||||
let surface = t.surface();
|
|
||||||
let kana = t.feature().split(",").nth(1).unwrap();
|
|
||||||
|
|
||||||
let (start_bytes, end_bytes) = matching_kana_ends(surface, kana);
|
|
||||||
|
|
||||||
if kana.is_empty()
|
|
||||||
|| start_bytes == surface.len()
|
|
||||||
|| surface
|
|
||||||
.chars()
|
|
||||||
.map(|c| c.is_ascii() || c.is_numeric())
|
|
||||||
.all(|n| n)
|
|
||||||
{
|
|
||||||
new_text.push_str(surface);
|
|
||||||
} else {
|
|
||||||
let start = &surface[..start_bytes];
|
|
||||||
let mid = &surface[start_bytes..(surface.len() - end_bytes)];
|
|
||||||
let mid_kana = &kana[start_bytes..(kana.len() - end_bytes)];
|
|
||||||
let end = &surface[(surface.len() - end_bytes)..];
|
|
||||||
new_text.push_str(start);
|
|
||||||
new_text.push_str("<ruby>");
|
|
||||||
new_text.push_str(mid);
|
|
||||||
new_text.push_str("<rt>");
|
|
||||||
new_text.push_str(mid_kana);
|
|
||||||
new_text.push_str("</rt></ruby>");
|
|
||||||
new_text.push_str(end);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
new_text
|
|
||||||
}
|
|
||||||
|
|
||||||
/// Returns (matching_start_bytes, matching_end_bytes).
|
|
||||||
///
|
|
||||||
/// Note that the bytes are in terms of `a`'s bytes.
|
|
||||||
///
|
|
||||||
/// If `matching_start_bytes == a.len()` you can assume that strings are kana
|
|
||||||
/// equivalents, and thus no ruby is needed.
|
|
||||||
fn matching_kana_ends(a: &str, b: &str) -> (usize, usize) {
|
|
||||||
let mut start_bytes = 0;
|
|
||||||
for (ca, cb) in a.chars().zip(b.chars()) {
|
|
||||||
if ca == cb || is_equivalent_kana(ca, cb) {
|
|
||||||
start_bytes += ca.len_utf8();
|
|
||||||
} else {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
let mut end_bytes = 0;
|
|
||||||
for (ca, cb) in a.chars().rev().zip(b.chars().rev()) {
|
|
||||||
if ca == cb || is_equivalent_kana(ca, cb) {
|
|
||||||
end_bytes += ca.len_utf8();
|
|
||||||
} else {
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
if (start_bytes + end_bytes) >= a.len() || (start_bytes + end_bytes) >= b.len() {
|
|
||||||
(a.len(), 0)
|
|
||||||
} else {
|
|
||||||
(start_bytes, end_bytes)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
fn is_equivalent_kana(a: char, b: char) -> bool {
|
|
||||||
let a = normalize_kana(a);
|
|
||||||
let b = normalize_kana(b);
|
|
||||||
match (a, b) {
|
|
||||||
(Some('は'), Some('わ'))
|
|
||||||
| (Some('わ'), Some('は'))
|
|
||||||
| (Some('を'), Some('お'))
|
|
||||||
| (Some('お'), Some('を'))
|
|
||||||
| (Some(_), Some('ー'))
|
|
||||||
| (Some('ー'), Some(_)) => true,
|
|
||||||
|
|
||||||
(Some(c), Some(d)) if c == d => true,
|
|
||||||
|
|
||||||
_ => false,
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
const HIRAGANA: u32 = 0x3041;
|
|
||||||
const KATAKANA: u32 = 0x30A1;
|
|
||||||
const KANA_COUNT: u32 = 0x3097 - HIRAGANA;
|
|
||||||
|
|
||||||
pub fn is_kana(c: char) -> bool {
|
|
||||||
if c == 'ー' {
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
let c = c as u32;
|
|
||||||
|
|
||||||
if c >= HIRAGANA && c < (HIRAGANA + KANA_COUNT) {
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
if c >= KATAKANA && c < (KATAKANA + KANA_COUNT) {
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
|
|
||||||
pub fn normalize_kana(c: char) -> Option<char> {
|
|
||||||
if !is_kana(c) {
|
|
||||||
return None;
|
|
||||||
}
|
|
||||||
|
|
||||||
Some(katakana_to_hiragana(c).unwrap_or(c))
|
|
||||||
}
|
|
||||||
|
|
||||||
pub fn hiragana_to_katakana(c: char) -> Option<char> {
|
|
||||||
let c = c as u32;
|
|
||||||
if c >= HIRAGANA && c < (HIRAGANA + KANA_COUNT) {
|
|
||||||
char::try_from(c + KATAKANA - HIRAGANA).ok()
|
|
||||||
} else {
|
|
||||||
None
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
pub fn katakana_to_hiragana(c: char) -> Option<char> {
|
|
||||||
let c = c as u32;
|
|
||||||
if c >= KATAKANA && c < (KATAKANA + KANA_COUNT) {
|
|
||||||
char::try_from(c - KATAKANA + HIRAGANA).ok()
|
|
||||||
} else {
|
|
||||||
None
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
#[cfg(test)]
|
|
||||||
mod tests {
|
|
||||||
use super::*;
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn matching_kana_ends_01() {
|
|
||||||
let surface = "へぇ";
|
|
||||||
let kana = "ヘー";
|
|
||||||
let (start_bytes, end_bytes) = matching_kana_ends(surface, kana);
|
|
||||||
|
|
||||||
assert_eq!(6, start_bytes);
|
|
||||||
assert_eq!(0, end_bytes);
|
|
||||||
}
|
|
||||||
|
|
||||||
#[test]
|
|
||||||
fn matching_kana_ends_02() {
|
|
||||||
let surface = "へぇー";
|
|
||||||
let kana = "ヘー";
|
|
||||||
let (start_bytes, end_bytes) = matching_kana_ends(surface, kana);
|
|
||||||
|
|
||||||
assert_eq!(9, start_bytes);
|
|
||||||
assert_eq!(0, end_bytes);
|
|
||||||
}
|
|
||||||
}
|
|
||||||
Loading…
Reference in New Issue
Block a user