Add str.capitalize (support BEE-spoke-data/tFINE-900m-instruct-orpo)

include/minja/minja.hpp

@@ -1385,6 +1385,13 @@ static std::string strip(const std::string & s) {
   return s.substr(start, end - start + 1);
 }
 
+static std::string capitalize(const std::string & s) {
+  if (s.empty()) return s;
+  auto result = s;
+  result[0] = std::toupper(result[0]);
+  return result;
+}
+
 static std::string html_escape(const std::string & s) {
   std::string result;
   result.reserve(s.size());
@@ -1462,6 +1469,9 @@ class MethodCallExpr : public Expression {
           if (method->get_name() == "strip") {
             vargs.expectArgs("strip method", {0, 0}, {0, 0});
             return Value(strip(str));
+          } else if (method->get_name() == "capitalize") {
+            vargs.expectArgs("capitalize method", {0, 0}, {0, 0});
+            return Value(capitalize(str));
           } else if (method->get_name() == "endswith") {
             vargs.expectArgs("endswith method", {1, 1}, {0, 0});
             auto suffix = vargs.args[0].get<std::string>();

tests/CMakeLists.txt

@@ -78,6 +78,7 @@ set(MODEL_IDS
     databricks/dbrx-instruct # Gated
     google/gemma-2-2b-it # Gated
     google/gemma-7b-it # Gated
+    BEE-spoke-data/tFINE-900m-instruct-orpo
     MiniMaxAI/MiniMax-Text-01
     indischepartij/MiniCPM-3B-OpenHermes-2.5-v2
     mattshumer/Reflection-Llama-3.1-70B

tests/test-syntax.cpp

@@ -74,6 +74,10 @@ TEST(SyntaxTest, SimpleCases) {
         return testing::Throws<std::runtime_error>(Property(&std::runtime_error::what, testing::HasSubstr(expected_substr)));
     };
 
+    EXPECT_EQ(
+        "Ok",
+        render("{{ 'ok'.capitalize() }}", {}, {}));
+
     EXPECT_EQ(
         "ok",
         render("{# Hey\nHo #}{#- Multiline...\nComments! -#}{{ 'ok' }}{# yo #}", {}, {}));