romanize-string/dist/esm/transliterators/thai-romanization.js

A fully typed, general-purpose utility for unidirectional string transliteration (non-Latin script => Latin script).

import { spawnSync } from "child_process";
import ThaiAnalyzer from "tnthai";
import { ensurePythonWithThaiLib } from "../utils/ensure-python-with-thai-lib.js";
const analyzer = new ThaiAnalyzer();
export const romanizeThai = (input) => {
    try {
        ensurePythonWithThaiLib();
        const { solution } = analyzer.segmenting(input);
        const segmentedString = solution
            .filter((word) => word.trim().length > 0)
            .join(" ")
            .replace(/\s+([.,!?;:])/g, "$1");
        const result = spawnSync("python3", [
            "src/transliterators/python-thai-romanization.py",
            segmentedString,
        ], {
            encoding: "utf-8",
            input: "",
        });
        if (result.error) {
            throw new Error(`Python error: ${result.error.message}`);
        }
        if (result.status !== 0) {
            throw new Error(`Python script exited with code ${result.status}: ${result.stderr}`);
        }
        return result.stdout
            .replace(/\b(\w{1,10})\s*\/\s*(\w{1,10})\b/g, "$1/$2") // Remove spaces around polite suffix separators
            .trim();
    }
    catch (err) {
        console.error("Thai transliteration failed.");
        console.error(err);
        return input;
    }
};