lesetid/dist/src-BHHz38yF.js

A dead simple read time estimation

import { isAnsi, isCJK, isPunctuation } from "./utils-CnJJfLNX.js";

//#region src/index.ts
const DEFAULT_OPTIONS = {
	wordsPerMinute: 200,
	charsPerMinute: 500,
	isWord: isAnsi
};
/**
* Counts the number of words and characters in the given text.
*
* @param {string?} text - the text to count words and characters in.
* @param {Options} [options] - the options to use.
* @returns {CountResult} the result of words and characters.
*/
function count(text, options = DEFAULT_OPTIONS) {
	if (!text) return {
		words: 0,
		chars: 0
	};
	let words = 0;
	let chars = 0;
	let start = 0;
	let end = text.length - 1;
	while (!isPunctuationOrWord(text[start], options.isWord || isAnsi)) start++;
	while (!isPunctuationOrWord(text[end], options.isWord || isAnsi)) end--;
	const normalizedText = `${text}\n`;
	for (let i = start; i <= end; i++) {
		const char = normalizedText[i];
		let nextChar = normalizedText[i + 1];
		if (isCJK(char)) {
			chars++;
			while (i <= end && !isPunctuationOrWord(nextChar, options.isWord || isAnsi)) {
				i++;
				nextChar = normalizedText[i + 1];
			}
		} else if (isPunctuationOrWord(char, options.isWord || isAnsi) && (!isPunctuationOrWord(nextChar, options.isWord || isAnsi) || isCJK(nextChar))) words++;
	}
	return {
		words,
		chars
	};
}
function isPunctuationOrWord(char = "", isWordFn) {
	return !char || !(isPunctuation(char) || isWordFn(char));
}
/**
* Estimate a text's reading time.
*
* @param {string} text - the text to estimate.
* @param {Options} [options] - the options to use.
* @returns {Estimation} the estimation result.
*/
function estimate(text, options = DEFAULT_OPTIONS) {
	if (!text) return {
		minutes: 0,
		time: 0,
		words: 0,
		chars: 0,
		text: "0 min read"
	};
	const { words, chars } = count(text);
	const { wordsPerMinute = 200, charsPerMinute = 500 } = options;
	const charMinutes = chars / charsPerMinute;
	const wordMinutes = words / wordsPerMinute;
	const totalMinutes = charMinutes + wordMinutes;
	const time = Math.round(totalMinutes * 60 * 1e3);
	const displayed = Math.ceil(Number.parseFloat(totalMinutes.toFixed(2)));
	return {
		minutes: displayed,
		time,
		words,
		chars,
		text: `${displayed} min read`
	};
}

//#endregion
export { DEFAULT_OPTIONS, count, estimate };