vbatts/llama.cpp
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common : llama_byte_to_token: allow falling back to finding just the token byte in SPM vocabs

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Aarni Koskela 2024-02-13 13:05:51 +02:00
parent 93aed7595b
commit 72b353f555
1 changed files with 7 additions and 1 deletions
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llama.cpp
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@ -7751,7 +7751,13 @@ static llama_token llama_byte_to_token(const llama_vocab & vocab, uint8_t ch) {
switch (llama_vocab_get_type(vocab)) { switch (llama_vocab_get_type(vocab)) {
case LLAMA_VOCAB_TYPE_SPM: { case LLAMA_VOCAB_TYPE_SPM: {
const char buf[7] = { '<', '0', 'x', hex[ch >> 4], hex[ch & 15], '>', 0 }; const char buf[7] = { '<', '0', 'x', hex[ch >> 4], hex[ch & 15], '>', 0 };
return vocab.token_to_id.at(buf); auto token = vocab.token_to_id.find(buf);
if (token != vocab.token_to_id.end()) {
return (*token).second;
}
// Try to fall back to just the byte as a string
const char buf2[2] = { (char)ch, 0 };
return vocab.token_to_id.at(buf2);
} }
case LLAMA_VOCAB_TYPE_WPM: case LLAMA_VOCAB_TYPE_WPM:
case LLAMA_VOCAB_TYPE_BPE: { case LLAMA_VOCAB_TYPE_BPE: {