func parseTimingFragment(text string, msg *m.Messages) m.RecipeTimingFragment {
result := m.RecipeTimingFragment{TagF: m.TimingTag}
for _, component := range fractionAwareSplitBySlashes(text) {
component = strings.TrimSpace(component)
if value, ok := extractComponent(component, servesRe); ok {
result.ServingSize = value
} else if value, ok := extractComponent(component, totalTimeRe); ok {
result.TotalTime = parseDuration(value)
} else if value, ok := extractComponent(component, prepTimeRe); ok {
result.PreparationTime = parseDuration(value)
} else {
msg.AddWarningf("Unknown duration component: %#v", component)
}
}
return result
}
