jinja : correct default size for string slices#19913
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… and new jinja template engine (ggml-org#1369) --------- Co-authored-by: Piotr Wilkin <piotr.wilkin@syndatis.com> common : add nemotron 3 parsing (ggml-org#18077) common : add parser for ministral/mistral large 3/devstral 2 (ggml-org#17713) common : default content to an empty string (ggml-org#18485) chat: make tool description and parameters optional per OpenAI spec (ggml-org#18478) Per the OpenAI API specification, both 'description' and 'parameters' fields in tool function definitions are optional. Previously, the parser would throw an exception if these fields were missing. Attempts to fix ggml-org#17667 common : implement new jinja template engine (ggml-org#18462) --------- Co-authored-by: Alde Rojas <hello@alde.dev> Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com> Co-authored-by: Georgi Gerganov <ggerganov@gmail.com> jinja: correct member access rule (ggml-org#18905) jinja : fix lexing of float literals with sign (ggml-org#18901) jinja : add missing tojson filter for bool (ggml-org#18900) jinja : attribute support for join, map and sort (ggml-org#18883) jinja : fix object item order (and properly implement dictsort) (ggml-org#18904) tests : add test-jinja -py option for cross-checking (ggml-org#18906) Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com> --------- Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com> ci : run test-jinja -py on high perf [no ci] (ggml-org#18916) jinja : fix undefined keys and attributes and int/float as bool (ggml-org#18924) jinja: support none|string (ggml-org#18995) Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com> Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com> --------- Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com> jinja : implement mixed type object keys (ggml-org#18955) --------- Co-authored-by: Xuan Son Nguyen <son@huggingface.co> jinja : undefined should be treated as sequence/iterable (return string/array) by filters/tests (ggml-org#19147) `tojson` is not a supported `undefined` filter keep it DRY and fix some types jinja : do not pass empty tools and add some none filters (ggml-org#19176) jinja : add unordered_map include to value.h [no ci] (ggml-org#19205) jinja : add missing 'in' test to template engine (ggml-org#19004) (ggml-org#19239) The jinja template parser was missing the 'in' test from global_builtins(), causing templates using reject("in", ...), select("in", ...), or 'x is in(y)' to fail with "selectattr: unknown test 'in'". This broke tool-calling for Qwen3-Coder and any other model whose chat template uses the 'in' test. Added test_is_in supporting array, string, and object containment checks, mirroring the existing 'in' operator logic in runtime.cpp. Includes test cases for all three containment types plus reject/select filter usage. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com> --------- Co-authored-by: Sid Mohan <sidmohan0@users.noreply.github.com> Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com> Co-authored-by: Xuan Son Nguyen <son@huggingface.co> Add Jinja support for "indent" string filter (ggml-org#19529) Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com> Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com> --------- Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com> add vendor refactor chat server : support preserving reasoning_content in assistant message (ggml-org#18994) chat : fix translategemma crash on common_chat_format_example (ggml-org#19019) chat: fix language input for translategemma (ggml-org#19052) Co-authored-by: Aldehir Rojas <hello@alde.dev> --------- Co-authored-by: Aldehir Rojas <hello@alde.dev> chat: fix case where template accepts type content only (ggml-org#19419) mtmd : chat : Fix extra \n between text and media marker (ggml-org#19595) Thanks to @tugot17 for detecting and reporting the issue. For vision models (e.g. LFM2.5-VL-1.6B and Qwen/Qwen3-VL-4B-Instruct) `llama-mtmd-cli` produces identical output to HF implementation. However `llama-server` doesn't. I traced it down to extra newline inserted after `<__media__>`. This happens in `to_json_oaicompat`, that treats media markers as text and joins all parts with `\n` separator. PR introduces new type `media_marker` and uses it for media markers. Extra logic is added to prevent insertion of newlines before and after media markers. With this change number of input tokens is identical to HF implementation and as a result the output is also identical. I explored other ways to address the issue * remove completely `\n` between text parts in `to_json_oaicompat` * merge text messages in server-common.cpp before sending them to `to_json_oaicompat` Please propose alternative ways of fixing this issue. Co-authored-by: Piotr Wilkin (ilintar) <piotr.wilkin@syndatis.com> --------- Co-authored-by: Piotr Wilkin (ilintar) <piotr.wilkin@syndatis.com> common : merge qwen3-coder and nemotron nano 3 parsers (ggml-org#19765) common : fix improper trimming in XML parser on complete message (ggml-org#19805) Co-authored-by: Jules LEIDELINGER <11395311+julio75012@users.noreply.github.com> jinja: correct stats for tojson and string filters (ggml-org#19785) jinja : correct default size for string slices (ggml-org#19913) common : handle unicode during partial json parsing (ggml-org#16526) common : fix json schema with '\' in literals (ggml-org#17307) add back qwen_coder_xml and mirothinker Co-authored-by: Aldehir Rojas <hello@alde.dev>
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As of b8157, when trying to use string slices in a chat template, and the slice does not specify end index (e.g.
content[1 : ]), no output will be emitted since the default end index is calculated only for arrays, and remains 0 for strings. This PR adds handling for strings, and should be complete for currently supported data types.test-chat-template details
test.jinja:{{- messages[0].content[:] }}test.json:{ "messages": [ { "role": "user", "content": "123456" } ] }Before (b8157):
After (this PR):