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Replace tokenizer-go with tiktoken-go
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| package tiktoken | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "strings" | ||
| "sync" | ||
|
|
||
| "github.com/pandodao/botastic/core" | ||
| "github.com/pkoukk/tiktoken-go" | ||
| ) | ||
|
|
||
| type Handler struct { | ||
| mutex sync.Mutex | ||
| defaultTiktoken *tiktoken.Tiktoken | ||
| encodingMap map[string]*tiktoken.Tiktoken | ||
| } | ||
|
|
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| func Init() (*Handler, error) { | ||
| // default encoding | ||
| encoding := "cl100k_base" | ||
| t, err := tiktoken.GetEncoding(encoding) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
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| h := &Handler{ | ||
| defaultTiktoken: t, | ||
| encodingMap: map[string]*tiktoken.Tiktoken{ | ||
| encoding: t, | ||
| }, | ||
| } | ||
| return h, nil | ||
| } | ||
|
|
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| func (h *Handler) CalToken(provider, model, text string) (int, error) { | ||
| if provider == core.ModelProviderOpenAI { | ||
| encodingName, ok := tiktoken.MODEL_TO_ENCODING[model] | ||
| if !ok { | ||
| return 0, fmt.Errorf("invalid openai model: %s", model) | ||
| } | ||
|
|
||
| h.mutex.Lock() | ||
| te, ok := h.encodingMap[encodingName] | ||
| h.mutex.Unlock() | ||
| if ok { | ||
| return len(te.Encode(text, nil, nil)), nil | ||
| } | ||
|
|
||
| h.mutex.Lock() | ||
| defer h.mutex.Unlock() | ||
|
|
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| te, err := tiktoken.GetEncoding(encodingName) | ||
| if err != nil { | ||
| return 0, err | ||
| } | ||
| h.encodingMap[encodingName] = te | ||
| return len(te.Encode(text, nil, nil)), nil | ||
| } | ||
|
|
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| // use default encoding for other providers | ||
| return len(h.defaultTiktoken.Encode(text, nil, nil)), nil | ||
| } | ||
|
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| func (h *Handler) CalTokenByName(name, text string) (int, error) { | ||
| ss := strings.Split(name, ":") | ||
| if len(ss) != 2 { | ||
| return 0, fmt.Errorf("invalid name: %s", name) | ||
| } | ||
|
|
||
| return h.CalToken(ss[0], ss[1], text) | ||
| } |
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