24 lines
1.0 KiB
Markdown
24 lines
1.0 KiB
Markdown
# bc
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A better basic calculator. Like the original `bc`, but with a better
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prompt. Work in progress. Very incapable right now.
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[](https://asciinema.org/a/75ay3m4mx5i93tbfu7dahc55u)
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## What?
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The idea behind `bc` is to display partial results to the right of the
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cursor in yellow while we type. A little example can be found in the video
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above. Other than that, we want to be compatible with the original `bc`, though
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somewhat faster. We have infinite precision integers and double precision floats.
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## TODO
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Basically everything except calculating stuff with numbers. This includes:
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- A parser (foundations are laid)
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- An evaluator (the current just does a tree rewrite on binary operations; this is
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cute, but not capable enough for the full `bc` language, of course)
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- A better data structure (numbers should probably have their own parent type to implement calculation)
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- A good readline copy (haskeline is sadly out of the question for this project)
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