Record parsing

fmp/fmp_dict.go

@@ -0,0 +1,58 @@
+package fmp
+
+type FmpDict map[uint64]*FmpDictEntry
+
+type FmpDictEntry struct {
+	Value    []byte
+	Children *FmpDict
+}
+
+func (dict *FmpDict) GetEntry(path ...uint64) *FmpDictEntry {
+	for i, key := range path {
+		_, ok := (*dict)[key]
+		if !ok {
+			return nil
+		}
+
+		if i == len(path)-1 {
+			return (*dict)[key]
+		} else {
+			dict = (*dict)[key].Children
+			if dict == nil {
+				return nil
+			}
+		}
+	}
+	return nil
+}
+
+func (dict *FmpDict) GetValue(path ...uint64) []byte {
+	ent := dict.GetEntry(path...)
+	if ent != nil {
+		return ent.Value
+	}
+	return nil
+}
+
+func (dict *FmpDict) GetChildren(path ...uint64) *FmpDict {
+	ent := dict.GetEntry(path...)
+	if ent != nil {
+		return ent.Children
+	}
+	return &FmpDict{}
+}
+
+func (dict *FmpDict) SetValue(path []uint64, value []byte) {
+	for i, key := range path {
+		_, ok := (*dict)[key]
+		if !ok {
+			(*dict)[key] = &FmpDictEntry{Children: &FmpDict{}}
+		}
+
+		if i == len(path)-1 {
+			(*dict)[key].Value = value
+		} else {
+			dict = (*dict)[key].Children
+		}
+	}
+}