Added support for Viking pre-tokenizer (#8135)

Co-authored-by: kustaaya <kustaaya@protonmail.com>

src/llama.cpp

@@ -5067,6 +5067,9 @@ static void llm_load_vocab(
             } else if (
                 tokenizer_pre == "poro-chat") {
                 vocab.type_pre = LLAMA_VOCAB_PRE_TYPE_PORO;
+            } else if (
+                tokenizer_pre == "viking") {
+                vocab.type_pre = LLAMA_VOCAB_PRE_TYPE_VIKING;
             } else {
                 throw std::runtime_error(format("unknown pre-tokenizer type: '%s'", tokenizer_pre.c_str()));
             }
@@ -13703,6 +13706,12 @@ struct llm_tokenizer_bpe {
                     " ?[^(\\s|.,!?…。，、।۔،)]+",
                 };
                 break;
+            case LLAMA_VOCAB_PRE_TYPE_VIKING:
+                regex_exprs = {
+                    "\\p{N}",
+                    " ?[^(\\s|.,!?…。，、।۔،)]+",
+                };
+                break;
             default:
                 // default regex for BPE tokenization pre-processing
                 regex_exprs = {