dify/web/app/components/workflow/utils/variable.ts

import type { BlockEnum, ValueSelector } from '../types'
import { hasErrorHandleNode } from '.'

export const variableTransformer = (v: ValueSelector | string) => {
  if (typeof v === 'string') return v.replace(/^\{\{#|#\}\}$/g, '').split('.')

  return `{{#${v.join('.')}#}}`
}

export const isExceptionVariable = (variable: string, nodeType?: BlockEnum) => {
  return (variable === 'error_message' || variable === 'error_type') && hasErrorHandleNode(nodeType)
}