64 lines
1.3 KiB
JavaScript
64 lines
1.3 KiB
JavaScript
//#region src/string/deburr.ts
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const deburrMap = new Map([
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["Æ", "Ae"],
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["Ð", "D"],
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["Ø", "O"],
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["Þ", "Th"],
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["ß", "ss"],
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["æ", "ae"],
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["ð", "d"],
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["ø", "o"],
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["þ", "th"],
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["Đ", "D"],
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["đ", "d"],
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["Ħ", "H"],
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["ħ", "h"],
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["ı", "i"],
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["IJ", "IJ"],
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["ij", "ij"],
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["ĸ", "k"],
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["Ŀ", "L"],
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["ŀ", "l"],
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["Ł", "L"],
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["ł", "l"],
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["ʼn", "'n"],
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["Ŋ", "N"],
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["ŋ", "n"],
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["Œ", "Oe"],
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["œ", "oe"],
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["Ŧ", "T"],
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["ŧ", "t"],
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["ſ", "s"]
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]);
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/**
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* Converts a string by replacing special characters and diacritical marks with their ASCII equivalents.
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* For example, "Crème brûlée" becomes "Creme brulee".
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*
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* @param {string} str - The input string to be deburred.
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* @returns {string} - The deburred string with special characters replaced by their ASCII equivalents.
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*
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* @example
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* // Basic usage:
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* deburr('Æthelred') // returns 'Aethelred'
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*
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* @example
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* // Handling diacritical marks:
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* deburr('München') // returns 'Munchen'
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*
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* @example
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* // Special characters:
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* deburr('Crème brûlée') // returns 'Creme brulee'
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*/
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function deburr(str) {
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str = str.normalize("NFD");
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let result = "";
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for (let i = 0; i < str.length; i++) {
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const char = str[i];
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if (char >= "̀" && char <= "ͯ" || char >= "︠" && char <= "︣") continue;
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result += deburrMap.get(char) ?? char;
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}
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return result;
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}
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//#endregion
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export { deburr };
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