chat : implement minicpm5 parser (#24889)

* Add minicpm5 tool call parser

* Refactor MiniCPM5 PEG parser per review feedback

* Fix jinja min/max API to match Jinja2

* modify by review

* MiniCPM5: use autoparser for XML tool calls and fix grammar preserved-token triggers

* MiniCPM5: fix streaming tool-arg placeholder and remove alt XML markers

* skip min/max attribute tests in -py mode

* test-jinja: use real expected output for min/max attribute tests

* MiniCPM5: revert shared mapper and history fallbacks per review

Drop streaming tool-arg placeholder workarounds from the generic PEG
mapper and restore strict tool-call argument JSON parsing so MiniCPM5
support stays limited to autoparser/diff-analyzer changes.

* chat : refactor minicpm5 back to dedicated parser

* cont : simplify grammar

* cont : refactor

* cont : fixes

* cont : rename template to openbmb-MiniCPM5-1B.jinja

* cont : add message delimiters

* cont : fix tests

---------

Co-authored-by: zhangtao <zhangtao2@modelbest.cn>
Co-authored-by: 张涛 <>

tests/test-jinja.cpp

@@ -1584,6 +1584,36 @@ static void test_array_methods(testing & t) {
         "6"
     );
 
+    test_template(t, "array|min",
+        "{{ [tool_calls_count, tool_sep_count]|min }}",
+        {{"tool_calls_count", 2}, {"tool_sep_count", 1}},
+        "1"
+    );
+
+    test_template(t, "array|max",
+        "{{ [tool_calls_count, tool_sep_count]|max }}",
+        {{"tool_calls_count", 2}, {"tool_sep_count", 1}},
+        "2"
+    );
+
+    test_template(t, "array|min attribute",
+        "{{ items|min(attribute='x') }}",
+        {{"items", json::array({
+            json({{"x", 2}}),
+            json({{"x", 1}}),
+        })}},
+        "{'x': 1}"
+    );
+
+    test_template(t, "array|max attribute",
+        "{{ items|max(attribute='x') }}",
+        {{"items", json::array({
+            json({{"x", 2}}),
+            json({{"x", 1}}),
+        })}},
+        "{'x': 2}"
+    );
+
     // not used by any chat templates
     // test_template(t, "array.insert()",
     //     "{% set _ = arr.insert(1, 'x') %}{{ arr|join(',') }}",