Add support for Laguna XS.2 & M.1 (#25165)

src/llama-vocab.cpp

@@ -496,6 +496,12 @@ struct llm_tokenizer_bpe : llm_tokenizer {
                     "[!\"#$%&'()*+,\\-./:;<=>?@\\[\\\\\\]^_`{|}~][A-Za-z]+|[^\\r\\n\\p{L}\\p{P}\\p{S}]?[\\p{L}\\p{M}]+| ?[\\p{P}\\p{S}]+[\\r\\n]*|\\s*[\\r\\n]+|\\s+(?!\\S)|\\s+",
                 };
                 break;
+            case LLAMA_VOCAB_PRE_TYPE_LAGUNA:
+                regex_exprs = {
+                    "[^\\n]+|[\\n]+",
+                    "(?:'[sS]|'[tT]|'[rR][eE]|'[vV][eE]|'[mM]|'[lL][lL]|'[dD])|[^\\r\\n\\p{L}\\p{N}]?\\p{L}+|\\p{N}| ?[^\\s\\p{L}\\p{N}]+[\\r\\n]*|\\s*[\\r\\n]+|\\s+(?!\\S)|\\s+",
+                };
+                break;
             case LLAMA_VOCAB_PRE_TYPE_EXAONE_MOE:
                 regex_exprs = {
                     // original regex from tokenizer.json
@@ -2342,6 +2348,10 @@ void llama_vocab::impl::load(llama_model_loader & ml, const LLM_KV & kv) {
                 tokenizer_pre == "afmoe") {
                 pre_type = LLAMA_VOCAB_PRE_TYPE_AFMOE;
                 clean_spaces = false;
+            } else if (
+                tokenizer_pre == "laguna") {
+                pre_type = LLAMA_VOCAB_PRE_TYPE_LAGUNA;
+                clean_spaces = false;
             } else if (
                 tokenizer_pre == "minimax-m2") {
                 pre_type = LLAMA_VOCAB_PRE_TYPE_MINIMAX_M2;