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Update special token handling in conversion scripts for gpt2 derived tokenizers (#3746)

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We still have the heads up in `README.md` regarding `bpe` tokenizers and this patch is needed for 

- a couple of tokenizer tests
- some more `special` and `non-special` added tokens handling (as far as I understand it)

* Update special token handling

* Add mpt
This commit is contained in:
Galunid
2023-10-23 21:46:00 +02:00
committed by GitHub
parent 5be6c803fa
commit 69a6735087
5 changed files with 56 additions and 19 deletions
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6
convert-mpt-hf-to-gguf.py
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@@ -136,9 +136,11 @@ for i in range(vocab_size):
tokens.append(f"[PAD{i}]")
toktypes.append(gguf.TokenType.USER_DEFINED)
elif reverse_vocab[i] in added_vocab:
# NOTE: wouldn't we like to distinguish CONTROL tokens here?
tokens.append(reverse_vocab[i])
toktypes.append(gguf.TokenType.USER_DEFINED)
if tokenizer.added_tokens_decoder[i].special:
toktypes.append(gguf.TokenType.CONTROL)
else:
toktypes.append(gguf.TokenType.USER_DEFINED)
else:
tokens.append(reverse_vocab[i])
toktypes.append(gguf.TokenType.NORMAL)