72 lines
1.9 KiB
Rust
72 lines
1.9 KiB
Rust
use proc_macro2::{Ident, TokenStream};
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use quote::{format_ident, quote};
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use std::{collections::BTreeMap, fs};
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pub fn build() -> TokenStream {
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let java_json: BTreeMap<String, String> = serde_json::from_str(
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&fs::read_to_string("../assets/en_us_java.json").expect("en_us_java is missing"),
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)
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.unwrap();
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let mut java_constants = TokenStream::new();
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for (name, value) in &java_json {
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let ident = to_valid_ident(name);
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let doc = if !value.is_empty() {
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quote!(#[doc = #value])
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} else {
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quote!()
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};
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java_constants.extend(quote! {
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#doc
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pub const #ident: &str = #name;
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});
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}
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let bedrock_content =
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fs::read_to_string("../assets/en_us_bedrock.lang").expect("en_us_bedrock is missing");
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let mut bedrock_constants = TokenStream::new();
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for line in bedrock_content.lines() {
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let line = line.trim();
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if line.is_empty() || line.starts_with('#') || line.starts_with('/') {
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continue;
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}
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if let Some((name, value)) = line.split_once('=') {
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let name = name.trim();
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let value = value.trim();
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let ident = to_valid_ident(name);
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let doc = if !value.is_empty() {
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quote!(#[doc = #value])
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} else {
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quote!()
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};
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bedrock_constants.extend(quote! {
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#doc
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pub const #ident: &str = #name;
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});
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}
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}
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// --- Final Assembly ---
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quote! {
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pub mod java {
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#java_constants
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}
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pub mod bedrock {
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#bedrock_constants
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}
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}
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}
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fn to_valid_ident(name: &str) -> Ident {
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let mut clean = name.to_uppercase().replace(['.', ':', '-'], "_");
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if clean.chars().next().is_some_and(|c| c.is_ascii_digit()) {
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clean.insert(0, '_');
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}
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format_ident!("{}", clean)
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}
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