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https://github.com/zaaarf/fluent-fluently.git
synced 2024-11-21 17:44:50 +01:00
feat: initial, basic implementation
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commit
0a759cfc29
6 changed files with 133 additions and 0 deletions
6
.editorconfig
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6
.editorconfig
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[*]
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end_of_line = lf
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insert_final_newline = true
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charset = utf-8
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indent_style = tab
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indent_size = 2
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2
.gitignore
vendored
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.gitignore
vendored
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/target
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Cargo.lock
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11
Cargo.toml
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11
Cargo.toml
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[package]
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name = "fluent-fluently"
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version = "0.1.0"
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edition = "2021"
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[dependencies]
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fluent = "0.16.0"
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fluent-syntax = "0.11.0"
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intl-memoizer = "0.5.1"
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unic-langid = "0.9.4"
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walkdir = "2.4.0"
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2
README.md
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README.md
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# Fluent, fluently
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I found myself needing to do localisation, one time. I decided I'd want it to happen at runtime, so that any spelling fixes may be applied without needing to recompile the whole program. [Fluent](https://github.com/projectfluent/fluent-rs) provides an API, but no real way to use it. I couldn't find any existing implementation fitting my use case, so I wrote this.
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33
src/error.rs
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33
src/error.rs
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use std::result::Result as StdResult;
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use fluent::FluentResource;
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pub type Result<T> = StdResult<T, Error>;
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pub enum Error {
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IoError(String)
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}
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impl From<std::io::Error> for Error {
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fn from(value: std::io::Error) -> Self {
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todo!()
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}
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}
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impl From<(FluentResource, Vec<fluent_syntax::parser::ParserError>)> for Error {
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fn from(value: (FluentResource, Vec<fluent_syntax::parser::ParserError>)) -> Self {
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todo!()
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}
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}
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impl From<Vec<fluent::FluentError>> for Error {
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fn from(value: Vec<fluent::FluentError>) -> Self {
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todo!()
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}
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}
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impl From<unic_langid::LanguageIdentifierError> for Error {
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fn from(value: unic_langid::LanguageIdentifierError) -> Self {
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todo!()
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}
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}
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79
src/lib.rs
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79
src/lib.rs
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use std::{collections::HashMap, sync::Arc};
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use fluent::{bundle::FluentBundle, FluentResource};
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use intl_memoizer::concurrent::IntlLangMemoizer;
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use unic_langid::LanguageIdentifier;
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use crate::error::Result;
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pub mod error;
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type TypedFluentBundle = FluentBundle<Arc<FluentResource>, IntlLangMemoizer>;
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pub struct Localiser {
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bundles: HashMap<LanguageIdentifier, TypedFluentBundle>,
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default_language: LanguageIdentifier
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}
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impl Localiser {
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pub fn try_load(path: String, default_language: String) -> Result<Self> {
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let mut bundles = HashMap::new();
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let paths = std::fs::read_dir(path)?
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.filter_map(|res| res.ok())
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.map(|dir_entry| dir_entry.path())
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.filter_map(|path| {
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if path.extension().map_or(false, |ext| ext == "ftl") || path.is_dir() {
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Some(path)
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} else {
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None
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}
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}).collect::<Vec<_>>();
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//TODO load default first and call bundle.add_resource_overriding(default_bundle) on others
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let default_language = default_language.parse::<LanguageIdentifier>()?;
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for path in paths {
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// validate filename as language code
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let language_code = path.file_stem()
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.and_then(|f| f.to_str())
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.map(|f| f.parse::<LanguageIdentifier>())
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.and_then(|id| match id {
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Ok(id) => Some(id),
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Err(_) => None
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});
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if language_code.is_none() {
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continue;
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}
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let language_code = language_code.unwrap();
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let mut bundle: TypedFluentBundle = fluent::bundle::FluentBundle::new_concurrent(vec![language_code.clone()]);
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if path.is_dir() { //is a directory
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for res in Self::path_to_resources(&path)? {
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bundle.add_resource(res)?;
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}
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} else { //is a single file
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bundle.add_resource(Self::file_to_resource(&path)?)?;
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}
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bundles.insert(language_code, bundle);
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}
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Ok(Self {
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bundles,
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default_language
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})
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}
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fn path_to_resources(path: &std::path::PathBuf) -> Result<Vec<Arc<FluentResource>>> {
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let mut res = Vec::new();
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for entry in walkdir::WalkDir::new(path).follow_links(true).into_iter().filter_map(|e| e.ok()) {
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let entry_path = entry.path().to_path_buf();
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res.push(Self::file_to_resource(&entry_path)?);
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}
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Ok(res)
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}
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fn file_to_resource(path: &std::path::PathBuf) -> Result<Arc<FluentResource>> {
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let content = std::fs::read_to_string(path)?;
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Ok(Arc::new(FluentResource::try_new(content)?))
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}
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}
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