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llama : add remove_space_prefix to llama_detokenize

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This commit adds a new parameter to llama_detokenize to remove the
leading space before tokens if they have a word boundary character.

The motivation for this change is that when llama_server returns
completion_propabilities, the tokens are detokenized and currently
the leading space for the boundary tokens are removed. With this change
llama_server can set remove_space_prefix to false and the leading space
will be preserved.

Resolves: https://github.com/ggerganov/llama.cpp/issues/11728
This commit is contained in:
Daniel Bevenius 2025-02-10 09:47:18 +01:00
parent d7b31a9d84
commit cc1fd2fd0d
7 changed files with 35 additions and 24 deletions
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6
common/common.h
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@ -601,12 +601,14 @@ std::string common_token_to_piece(
std::string common_detokenize(
const struct llama_context * ctx,
const std::vector<llama_token> & tokens,
bool special = true);
bool special = true,
bool remove_space_prefix = true);
std::string common_detokenize(
const struct llama_vocab * vocab,
const std::vector<llama_token> & tokens,
bool special = true);
bool special = true,
bool remove_space_prefix = true);
//
// Chat template utils