LoadTaxonomyFromBytes parses taxonomy JSON from raw bytes.
(buf []byte)
| 29 | |
| 30 | // LoadTaxonomyFromBytes parses taxonomy JSON from raw bytes. |
| 31 | func LoadTaxonomyFromBytes(buf []byte) (*Taxonomy, error) { |
| 32 | var t Taxonomy |
| 33 | if err := json.Unmarshal(buf, &t); err != nil { |
| 34 | return nil, fmt.Errorf("parse taxonomy: %w", err) |
| 35 | } |
| 36 | |
| 37 | t.lookup = make(map[string]string, len(t.Categories)*4) |
| 38 | for _, cat := range t.Categories { |
| 39 | name := strings.ToLower(strings.TrimSpace(cat.Name)) |
| 40 | if name == "" { |
| 41 | return nil, fmt.Errorf("taxonomy: empty category name") |
| 42 | } |
| 43 | if prev, exists := t.lookup[name]; exists { |
| 44 | return nil, fmt.Errorf("taxonomy: duplicate name %q (conflicts with %q)", name, prev) |
| 45 | } |
| 46 | t.lookup[name] = name |
| 47 | for _, alias := range cat.Aliases { |
| 48 | a := strings.ToLower(strings.TrimSpace(alias)) |
| 49 | if a == "" { |
| 50 | continue |
| 51 | } |
| 52 | if prev, exists := t.lookup[a]; exists { |
| 53 | return nil, fmt.Errorf("taxonomy: duplicate alias %q in category %q (already mapped to %q)", a, name, prev) |
| 54 | } |
| 55 | t.lookup[a] = name |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | return &t, nil |
| 60 | } |
| 61 | |
| 62 | // Lookup returns the canonical category name for a given name or alias. |
| 63 | // Returns ("", false) if not found. |
no outgoing calls