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24 lines
785 B
Markdown
24 lines
785 B
Markdown
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# Missing POSIX Functionality
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### References
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- [POSIX.1-2017 Chapter 2: Shell Command Language](https://pubs.opengroup.org/onlinepubs/9699919799.2018edition/utilities/V3_chap02.html)
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### Shell Command Language features known to be missing from `phoenix`
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- Parameter expansion
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> This is support for `$variables`, and this is **highest priority**.
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- Compound commands
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> This is `if`, `case`, `while`, `for`, etc
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- Arithmetic expansion
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- Alias substitution
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### How to Contribute
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- Check the [README.md file](../README.md) for contributor guidelines.
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- Additional features will require updates to
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[the parser](phoenix/src/ansi-shell/parsing).
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Right now there are repeated concerns between
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`buildParserFirstHalf` and `buildParserSecondHalf` which need to
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be factored out.
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