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Code Issues Releases Activity

Record parsing

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This commit is contained in:
Romein van Buren
2025-06-22 19:14:22 +02:00
parent d22b209ca5
commit 7cf3fd93ac
6 changed files with 232 additions and 168 deletions
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84
fmp/fmp_util.go
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@ -1,65 +1,13 @@
package fmp
import "slices"
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
}
}
func addIf(cond bool, val uint64) uint64 {
if cond {
return val
}
return nil
return 0
}
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
}
}
}
func parseVarUint64(payload []byte) uint64 {
func decodeVarUint64(payload []byte) uint64 {
var length uint64
n := min(len(payload), 8) // clamp to uint64
for i := range n {
@ -69,30 +17,10 @@ func parseVarUint64(payload []byte) uint64 {
return length
}
func decodeFmpString(payload []byte) string {
func decodeString(payload []byte) string {
result := ""
for i := range payload {
result += string(payload[i] ^ 0x5A)
}
return result
}
func addIf(cond bool, val uint64) uint64 {
if cond {
return val
}
return 0
}
func slicesHaveSameElements[Type comparable](a, b []Type) bool {
if len(a) != len(b) {
return false
}
for _, av := range a {
found := slices.Contains(b, av)
if !found {
return false
}
}
return true
}