23 lines
727 B
Markdown
23 lines
727 B
Markdown
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# Special Forms
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Special forms are constructs that Keithlisp evaluates differently from
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other S-expressions.
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## `quote`
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```
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quote form
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```
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`quote` returns `form` as-is, without performing any evaluation on it.
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## `cond`
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```
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cond {(test {body-form}*)}*
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```
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`cond` is Keithlisp's basic conditional operator. It consists of zero or
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more clauses (a `test`, followed by zero or more `body-form`s).
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`cond` evaluates the `test` of each clause in order. If the result is
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non-nil, `cond` skips all remaining clauses, evaluates each `body-form`,
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and returns the result of the last one (or the result of `test` if the
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clause has no `body-form`s). Otherwise, if all `test`s evaluate to nil,
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or no clauses were given, `cond` returns nil.
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