vbatts/llama.cpp
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Fix bpe_gpt2_preprocess

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bobqianic 2024-02-10 23:17:39 +00:00 • committed by GitHub
parent f026f8120f
commit 98d5d20044
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1 changed files with 17 additions and 12 deletions
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llama.cpp
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@ -7789,7 +7789,7 @@ private:
work_queue.push(bigram); work_queue.push(bigram);
} }
std::vector<std::string> bpe_gpt2_preprocess(const std::string & text) { static std::vector<std::string> bpe_gpt2_preprocess(const std::string & text) {
std::vector<std::string> bpe_words; std::vector<std::string> bpe_words;
std::vector<std::string> bpe_encoded_words; std::vector<std::string> bpe_encoded_words;
@ -7819,7 +7819,7 @@ private:
const std::string & utf_char_next_next = (i + 2 < (int)text_utf.size()) ? text_utf[i + 2] : ""; const std::string & utf_char_next_next = (i + 2 < (int)text_utf.size()) ? text_utf[i + 2] : "";
// handling contractions // handling contractions
if (!split_condition && bytes_remain >= 2) { if (!split_condition && bytes_remain >= 2 && token != " ") {
// 's|'t|'m|'d // 's|'t|'m|'d
if (utf_char == "\'" && (utf_char_next == "s" || utf_char_next == "t" || utf_char_next == "m" || utf_char_next == "d")) { if (utf_char == "\'" && (utf_char_next == "s" || utf_char_next == "t" || utf_char_next == "m" || utf_char_next == "d")) {
split_condition = true; split_condition = true;
@ -7835,7 +7835,7 @@ private:
continue; continue;
} }
} }
if (!split_condition && bytes_remain >= 3) { if (!split_condition && bytes_remain >= 3 && token != " ") {
// 're|'ve|'ll // 're|'ve|'ll
if (utf_char == "\'" && ( if (utf_char == "\'" && (
(utf_char_next == "r" && utf_char_next_next == "e") || (utf_char_next == "r" && utf_char_next_next == "e") ||
@ -7891,7 +7891,7 @@ private:
else if (collecting_special && (codepoint_type(utf_char) == CODEPOINT_TYPE_LETTER || codepoint_type(utf_char) == CODEPOINT_TYPE_DIGIT || codepoint_type(utf_char) == CODEPOINT_TYPE_WHITESPACE)) { else if (collecting_special && (codepoint_type(utf_char) == CODEPOINT_TYPE_LETTER || codepoint_type(utf_char) == CODEPOINT_TYPE_DIGIT || codepoint_type(utf_char) == CODEPOINT_TYPE_WHITESPACE)) {
split_condition = true; split_condition = true;
} }
else if (collecting_whitespace_lookahead && (codepoint_type(utf_char_next) == CODEPOINT_TYPE_LETTER || codepoint_type(utf_char_next) == CODEPOINT_TYPE_DIGIT)) { else if (collecting_whitespace_lookahead && codepoint_type(utf_char_next) != CODEPOINT_TYPE_WHITESPACE) {
split_condition = true; split_condition = true;
} }
} }
@ -7913,9 +7913,14 @@ private:
collecting_whitespace_lookahead = false; collecting_whitespace_lookahead = false;
} }
else { else {
if (codepoint_type(token) == CODEPOINT_TYPE_PUNCTUATION && codepoint_type(utf_char) == CODEPOINT_TYPE_LETTER) {
bpe_words.emplace_back(token);
token = utf_char;
} else {
token += utf_char; token += utf_char;
} }
} }
}
for (std::string & word : bpe_words) { for (std::string & word : bpe_words) {
std::string encoded_token = ""; std::string encoded_token = "";