@sketch-hq/sketch-assistant-utils/dist/esm/pointer-utils/index.js

Utility functions and types for Sketch Assistants.

import Ptr from '@json-schema-spec/json-pointer';
/**
 * Resolve a RFC6901 JSON Pointer to a value with a target object instance.
 */
const evalPointer = (pointer, instance) => {
    try {
        const ptr = Ptr.parse(pointer);
        return ptr.eval(instance);
    }
    catch (err) {
        return undefined;
    }
};
/**
 * Unwind a RFC6901 JSON Pointer string one level to find the JSON Pointer for its parent,
 * e.g. `/foo/bar/0/baz` => `foo/bar[0]`. If the JSON Pointer is invalid or the parent isn't
 * available (i.e. already at the root) then `undefined` is returned.
 */
const getParentPointer = (pointer) => {
    try {
        const ptr = Ptr.parse(pointer);
        if (ptr.tokens.length === 0)
            return undefined;
        try {
            return new Ptr(ptr.tokens.splice(0, ptr.tokens.length - 1)).toString();
        }
        catch (err) {
            return undefined;
        }
    }
    catch (err) {
        return undefined;
    }
};
export { evalPointer, getParentPointer };