@redocly/theme/src/core/utils/replace-inputs-with-value.ts

Shared UI components lib

export function replaceInputsWithValue(node: string, inputs: Record<string, { value?: string }>) {
  const validKeys = Object.entries(inputs)
    .filter(([_, input]) => input.value)
    .map(([key]) => key)
    .join('|');

  if (!validKeys) {
    return node;
  }

  const inputRegex = new RegExp(`\\{\\{\\s*(${validKeys})\\s*\\}\\}`, 'g');

  return node.replace(inputRegex, (_, inputKey) => inputs[inputKey]?.value as string);
}