support jinja-style macros

Description

Contributor guide

Tech stack

None

Domain

backend

Issue type

feature

DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.

3

Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.

3-5 days

Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.

stale

ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.

unclear

Prerequisites

Familiarity with ClojureUnderstanding of Selmer's template parsingKnowledge of Jinja macros

Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.

20

Research direction

First, review the existing Selmer template source code to understand how tags and filters are implemented. Then examine the Jinja macro documentation linked in the issue to define desired behavior. Look through the 5 comments on this issue for any prior discussion or direction from maintainers. Consider creating a design document outlining macro syntax and implementation plan before coding.