Function markIntegerIndexKeys

apps/json-format/json-auto-utils.js:145–192

(source)

    }

    function markIntegerIndexKeys(source) {
        source = String(source || '');
        let result = '';
        let i = 0;

        while (i < source.length) {
            if (source[i] !== '"') {
                result += source[i++];
                continue;
            }

            const start = i;
            i++;
            let escaped = false;
            while (i < source.length) {
                const char = source[i++];
                if (escaped) {
                    escaped = false;
                    continue;
                }
                if (char === '\\') {
                    escaped = true;
                    continue;
                }
                if (char === '"') {
                    break;
                }
            }

            const rawKey = source.slice(start, i);
            let j = i;
            while (j < source.length && /\s/.test(source[j])) j++;

            if (source[j] === ':') {
                try {
                    const key = JSON.parse(rawKey);
                    if (isIntegerIndexKey(key)) {
                        result += JSON.stringify(PRESERVED_INTEGER_KEY_PREFIX + key);
                        continue;
                    }
                } catch (_) {}
            }

            result += rawKey;
        }

        return result;
    }

    function normalizePreservedKey(key) {
        if (typeof key === 'string' && key.indexOf(PRESERVED_INTEGER_KEY_PREFIX) === 0) {