Function normalizeExpands

core/record_query_expand.go:260–291

normalizeExpands normalizes expand strings and merges self containing paths (eg. ["a.b.c", "a.b", " test ", " ", "test"] -> ["a.b.c", "test"]).

(paths []string)

// normalizeExpands normalizes expand strings and merges self containing paths
// (eg. ["a.b.c", "a.b", "   test  ", "  ", "test"] -> ["a.b.c", "test"]).
func normalizeExpands(paths []string) []string {
	// normalize paths
	normalized := make([]string, 0, len(paths))
	for _, p := range paths {
		p = strings.ReplaceAll(p, " ", "") // replace spaces
		p = strings.Trim(p, ".")           // trim incomplete paths
		if p != "" {
			normalized = append(normalized, p)
		}
	}

	// merge containing paths
	result := make([]string, 0, len(normalized))
	for i, p1 := range normalized {
		var skip bool
		for j, p2 := range normalized {
			if i == j {
				continue
			}
			if strings.HasPrefix(p2, p1+".") {
				// skip because there is more detailed expand path
				skip = true
				break
			}
		}
		if !skip {
			result = append(result, p1)
		}
	}

	return list.ToUniqueStringSlice(result)
}