Support for index-based arrays slicing

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First steps

1. Read the whole issue, then the project's contributing guide.
2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
3. Fork the repository and make your change on a branch.
4. Open a pull request that references the issue number.

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  jinja2cpp/Jinja2Cpp#288 · Opened Sep 26, 2026

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  jinja2cpp/Jinja2Cpp#286 · Opened Sep 18, 2026

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  jinja2cpp/Jinja2Cpp#290 · Opened Sep 26, 2026

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  jinja2cpp/Jinja2Cpp#289 · Opened Sep 26, 2026

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  jinja2cpp/Jinja2Cpp#287 · Opened Sep 25, 2026

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