code: func (po *Po) parseContext(l string) {
  	// Save current Translation buffer.
  	po.saveBuffer()
  
  	// Buffer context
  	po.ctxBuffer, _ = strconv.Unquote(strings.TrimSpace(strings.TrimPrefix(l, "msgctxt")))
  }
docs: // parseContext takes a line starting with "msgctxt",
  // saves the current Translation buffer and creates a new context.