code: func (fp *formatParser) addStatic(b []byte) {
  	if b == nil {
  		return
  	} else if len(fp.lastStatic) == 0 {
  		fp.lastStatic = b
  	} else {
  		fp.lastStatic = append(fp.lastStatic, b...)
  	}
  }
docs: // Adds a static string to the formatFuncs implementation.