@winglet/json/dist/JSONPath/utils/convertJsonPathToPointer/convertJsonPathToPointer.cjs

TypeScript library for safe and efficient JSON data manipulation with RFC 6901 (JSON Pointer) and RFC 6902 (JSON Patch) compliance, featuring prototype pollution protection and immutable operations

'use strict';

const convertJsonPathToPointer = (dataPath) => {
    if (dataPath[0] === '/' || (dataPath[0] === '#' && dataPath[1] === '/'))
        return dataPath;
    if (!dataPath)
        return JSON_POINTER_SEPARATOR;
    const length = dataPath.length;
    let result = '';
    let start = 0;
    let index = 0;
    while (index < length) {
        const character = dataPath[index];
        if (character === JSON_PATH_SEPARATOR) {
            if (index > start)
                result += JSON_POINTER_SEPARATOR + dataPath.slice(start, index);
            start = index + 1;
            index++;
        }
        else if (character === JSON_PATH_ARRAY_INDEX_PREFIX) {
            if (index > start)
                result += JSON_POINTER_SEPARATOR + dataPath.slice(start, index);
            const openIndex = ++index;
            while (index < length && dataPath[index] !== JSON_PATH_ARRAY_INDEX_SUFFIX)
                index++;
            const arrayContent = dataPath.slice(openIndex, index);
            result +=
                JSON_POINTER_SEPARATOR +
                    (arrayContent === '' ? JSON_PATH_ARRAY_INDEX_NEW : arrayContent);
            if (index < length)
                index++;
            start = index;
        }
        else
            index++;
    }
    if (start < length)
        result += JSON_POINTER_SEPARATOR + dataPath.slice(start);
    return result || JSON_POINTER_SEPARATOR;
};
const JSON_PATH_SEPARATOR = '.';
const JSON_PATH_ARRAY_INDEX_PREFIX = '[';
const JSON_PATH_ARRAY_INDEX_SUFFIX = ']';
const JSON_POINTER_SEPARATOR = '/';
const JSON_PATH_ARRAY_INDEX_NEW = '-';

exports.convertJsonPathToPointer = convertJsonPathToPointer;