@beenotung/tslib/io.js

utils library in Typescript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.IO = exports.rl = exports.getRL = exports.createRL = void 0;
const tslib_1 = require("tslib");
const readline_1 = require("readline");
const lazy_1 = require("./lazy");
function createRL(options = { input: process.stdin, output: process.stdout }) {
    return readline_1.createInterface(options);
}
exports.createRL = createRL;
exports.getRL = lazy_1.createLazy(createRL);
{
    let isNew = true;
    exports.rl = new Proxy({}, {
        get: (target, p) => {
            if (isNew) {
                isNew = false;
                Object.assign(target, exports.getRL());
            }
            return target[p];
        },
    });
}
var IO;
(function (IO) {
    /**
     * @description lineNum start from 0
     * */
    function forEachLine(onnext, oncomplete) {
        const rl = exports.getRL();
        let lineNum = -1;
        rl.on('line', line => {
            lineNum++;
            if (line) {
                onnext(line, lineNum);
            }
        });
        if (typeof oncomplete === 'function') {
            rl.on('close', oncomplete);
        }
    }
    IO.forEachLine = forEachLine;
    /**
     * @description lineNum start from 0
     * */
    function mapLine(f) {
        return tslib_1.__awaiter(this, void 0, void 0, function* () {
            return new Promise((resolve, reject) => {
                try {
                    const res = [];
                    forEachLine((line, lineNum) => res.push(f(line, lineNum)), () => resolve(res));
                }
                catch (e) {
                    reject(e);
                }
            });
        });
    }
    IO.mapLine = mapLine;
    function collect() {
        return tslib_1.__awaiter(this, void 0, void 0, function* () {
            return mapLine(x => x);
        });
    }
    IO.collect = collect;
})(IO = exports.IO || (exports.IO = {}));
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