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jinja : fix lexing of float literals with sign#18901

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CISC merged 3 commits intomasterfrom
cisc/jinja-fix-sign-float-literals
Jan 17, 2026
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jinja : fix lexing of float literals with sign#18901
CISC merged 3 commits intomasterfrom
cisc/jinja-fix-sign-float-literals

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@CISC CISC commented Jan 17, 2026

The lexer was only checking for integers and not floats when prepended with a unary operator.

Fixes #18900 (comment)

@CISC CISC requested a review from ggerganov as a code owner January 17, 2026 17:06
@CISC CISC requested review from ngxson and removed request for ggerganov January 17, 2026 17:06
@github-actions github-actions Bot added the testing Everything test related label Jan 17, 2026
CISC added a commit that referenced this pull request Jan 17, 2026
@CISC CISC added the jinja parser Issues related to the jinja parser label Jan 17, 2026
Comment thread common/jinja/lexer.cpp Outdated
Comment on lines +262 to +266
if (pos < src.size() && src[pos] == '.' && pos + 1 < src.size() && is_integer(src[pos + 1])) {
++pos; // Consume '.'
std::string frac = consume_while(is_integer);
num += "." + frac;
}
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while looking at this, I'm wondering if this case is currently supported: .5 and -.5 (they are valid python expressions)

we can probably extract this code to in to a new function is_fraction, and reuse the function to parse this case (ofc, can be done in a follow-up PR)

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I think a consume_numeric() would be appropriate here.

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Ok, needs refinement, worth doing in this PR I think.

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Actually, it seems jinja does not adhere to this, gives an error with no leading digit.

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hmm ok TIL not all python syntax are considered as valid jinja syntax..

Comment thread tests/test-jinja.cpp
Comment thread common/jinja/lexer.cpp Outdated
@CISC CISC requested a review from aldehir January 17, 2026 21:34
@CISC CISC merged commit 420960a into master Jan 17, 2026
73 of 78 checks passed
@CISC CISC deleted the cisc/jinja-fix-sign-float-literals branch January 17, 2026 23:57
Seunghhon pushed a commit to Seunghhon/llama.cpp that referenced this pull request Apr 26, 2026
* fix lexing of float literals with sign

* add test

* consume_numeric
phuongncn pushed a commit to phuongncn/llama.cpp-gx10-dgx-sparks-deepseekv4 that referenced this pull request Apr 28, 2026
… 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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