39 lines
678 B
Markdown
39 lines
678 B
Markdown
# SCL: Simple Calculator Language
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## Syntax
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As one would expect, you can evaluate simple infix expressions:
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```scl
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> 1 + 1
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= 2
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```
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You can also define your own functions:
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```scl
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> f(x) 2x
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> f(2)
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= 4
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```
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SCL will dynamically decide on types, but you can state them explicitly as
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well:
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```scl
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> f(x:int) 2x
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> f(2.2)
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! f(x:int): x must be of type int.
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```
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Variables can be defined, with several attributes:
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```scl
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> a = 1 // Interpret type automatically.
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> b:int = 1 // Must be int.
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> c:const:int = 1 // Constant: value can never change.
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> d:lazy = (1 + 1) // Interpreter will wait as long as possible before
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// evaluating.
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```
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