@cornerstonejs/dicom-image-loader/dist/esm/imageLoader/wadors/findIndexOfString.js

Cornerstone Image Loader for DICOM WADO-URI and WADO-RS and Local file

function checkToken(token, data, dataOffset) {
    if (dataOffset + token.length > data.length) {
        return false;
    }
    let endIndex = dataOffset;
    for (let i = 0; i < token.length; i++) {
        if (token[i] !== data[endIndex++]) {
            return false;
        }
    }
    return true;
}
function stringToUint8Array(str) {
    const uint = new Uint8Array(str.length);
    for (let i = 0, j = str.length; i < j; i++) {
        uint[i] = str.charCodeAt(i);
    }
    return uint;
}
function findIndexOfString(data, str, offset) {
    offset = offset || 0;
    const token = stringToUint8Array(str);
    for (let i = offset; i < data.length; i++) {
        if (token[0] === data[i]) {
            if (checkToken(token, data, i)) {
                return i;
            }
        }
    }
    return -1;
}
export default findIndexOfString;