#!/usr/bin/env node
function parsePath(path) {
if (typeof path !== 'string' || path.trim().length === 0) {
throw new Error('Path must be a non-empty string');
}
const segments = [];
const pattern = /([^[.\]]+)|\[(.*?)\]/g;
let match;
while ((match = pattern.exec(path)) !== null) {
const raw = match[1] !== undefined ? match[1] : match[2];
if (raw === undefined || raw === '') {
continue;
}
const trimmed = raw.trim();
if (!trimmed) {
continue;
}
const unquoted = trimmed.replace(/^['"]|['"]$/g, '');
if (/^\d+$/.test(unquoted)) {
segments.push(Number.parseInt(unquoted, 10));
} else {
segments.push(unquoted);
}
}
return segments;
}
function getPathValue(target, path, { defaultValue, required } = {}) {
if (path === undefined || path === null || path === '') {
return target;
}
const segments = Array.isArray(path) ? path : parsePath(path);
let current = target;
for (const segment of segments) {
if (current === undefined || current === null) {
if (required) {
throw new Error(`Path '${Array.isArray(path) ? path.join('.') : path}' not found`);
}
return defaultValue;
}
current = current[segment];
}
if (current === undefined && required) {
throw new Error(`Path '${Array.isArray(path) ? path.join('.') : path}' not found`);
}
return current === undefined ? defaultValue : current;
}
module.exports = {
parsePath,
getPathValue,
};
