RPM Macro Expansion in Python
=============================
Parse RPM macro files and spec files, and expand macros safely—without the
potential Turing-Complete side effects.
This is a standalone library that depends only on the standard Python library
and [PLY](https://github.com/dabeaz/ply) (for expression parsing).
How to Use It
-------------
```bash
$ norpm-expand-specfile --specfile SPEC --expand-string '%{?epoch}%{!?epoch:(none)}:%version'
(none):1.1.1
```
Directly from Python, you can use:
```python
from norpm.macrofile import system_macro_registry
from norpm.specfile import specfile_expand
registry = system_macro_registry()
with open("SPEC", "r", encoding="utf8") as fd:
expanded_specfile = specfile_expand(fd.read(), registry)
print("Name:", registry["name"].value)
print("Version:", registry["version"].value)
```
State of the implementation
-----
There still are a [few features][rfes] to be implemented. Your contributions
are welcome and greatly encouraged!
[rfes]: https://github.com/praiskup/norpm/issues?q=is%3Aissue%20state%3Aopen%20label%3Aenhancement
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