image-in-browser/lib/common/string-utils.js

Package for encoding / decoding images, transforming images, applying filters, drawing primitives on images on the client side (no need for server Node.js)

import { LibError } from '../error/lib-error.js';
export class StringUtils {
    static getCodePoints(str) {
        const array = new Uint8Array(str.length);
        for (let i = 0; i < str.length; i++) {
            const codePoint = str.codePointAt(i);
            if (codePoint !== undefined) {
                if (0 <= codePoint && codePoint < 256) {
                    array[i] = codePoint;
                }
                else {
                    throw new LibError(`Error encoding text "${str}": unknown character code point ${codePoint}`);
                }
            }
            else {
                throw new LibError(`Error encoding text "${str}"`);
            }
        }
        return array;
    }
}
StringUtils.utf8Decoder = new TextDecoder('utf8');
StringUtils.latin1Decoder = new TextDecoder('latin1');
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