text-no-case/dist.es2015/index.js

Convert text to all lowercase letters with spaces between words

import { lowerCase } from "text-lower-case";
// Support camel case ("camelCase" -> "camel Case" and "CAMELCase" -> "CAMEL Case").
// Updated to support Unicode letters
const DEFAULT_SPLIT_REGEXP = [
    /(\p{Ll}|\p{N})(\p{Lu})/gu,
    /(\p{Lu})(\p{Lu}\p{Ll})/gu,
];
// Remove all non-word characters, but preserve Unicode letters and numbers.
// Updated to use Unicode-aware character classes
const DEFAULT_STRIP_REGEXP = /[^\p{L}\p{N}]+/gu;
/**
 * Normalize text into something other libraries can manipulate easier.
 */
export function noCase(input, options = {}) {
    // Handle null/undefined inputs gracefully
    if (!input)
        return "";
    const { splitRegexp = DEFAULT_SPLIT_REGEXP, stripRegexp = DEFAULT_STRIP_REGEXP, transform = lowerCase, delimiter = " ", } = options;
    let result = replace(replace(input, splitRegexp, "$1\0$2"), stripRegexp, "\0");
    let start = 0;
    let end = result.length;
    // Trim the delimiter from around the output string.
    while (result.charAt(start) === "\0")
        start++;
    while (result.charAt(end - 1) === "\0")
        end--;
    // Transform each token independently.
    return result.slice(start, end).split("\0").map(transform).join(delimiter);
}
/**
 * Replace `re` in the input string with the replacement value.
 */
function replace(input, re, value) {
    if (re instanceof RegExp)
        return input.replace(re, value);
    return re.reduce((input, re) => input.replace(re, value), input);
}