@orchestrator/core/esm2020/lib/util.mjs

> Core package of Orchestrator library.

/**
 * @internal
 */
export function execRegex(regex, val) {
    const arr = [];
    let group;
    while ((group = regex.exec(val)) !== null) {
        if (group.index === regex.lastIndex) {
            regex.lastIndex++;
        }
        arr.push(...group);
    }
    return !arr.length ? null : arr;
}
/**
 * @internal
 */
export function parseFunction(fnStr) {
    const fnRegex = /^function\s*(?:[A-z0-9]+)?\s*\(([\w\W]*?)\)\s*\{([\w\W]*)\}$/gm;
    const arrowFnRegex = /^\(?([\w\W]*?)\)?\s*=>\s*\{([\w\W]*)\}$/gm;
    const returnArrowFnRegex = /^\(?([\w\W]*?)\)?\s*=>\s*([^}{]*)$/gm;
    fnStr = fnStr.trim();
    const fnInfo = execRegex(fnRegex, fnStr) ||
        execRegex(arrowFnRegex, fnStr) ||
        execRegex(returnArrowFnRegex, fnStr);
    if (!fnInfo || fnInfo.length < 2) {
        return null;
    }
    const _args = fnInfo.length > 2 ? fnInfo[1] || '' : '';
    const args = _args
        .split(',')
        .map(arg => arg.trim())
        .filter(arg => !!arg);
    const isReturnFunction = returnArrowFnRegex.test(fnStr);
    const _body = fnInfo[fnInfo.length - 1];
    if (!_body && isReturnFunction) {
        return null;
    }
    const body = isReturnFunction ? `return ${_body}` : _body || '';
    return { args, body };
}
/**
 * @internal
 */
export function isArgOptional(argExpr) {
    return /^[^=]+\s*=.+/.test(argExpr);
}
/**
 * @internal
 */
export function getArgName(argExpr) {
    return argExpr.match(/^([^=\s]+)(?:\s*=.+)?/)[1];
}
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