application/octet-stream
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1.25 KB
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76 lines
; Contains native nujel implementations of some
; core language constructs and essential macros
[defmacro comment [...body]
"Does nothing"
#nil
]
[defmacro += [val inc]
`[set! ~val [+ ~val ~inc]]
]
[defmacro cdr! [l]
"[set! l [cdr l]]"
`[set! ~l [cdr ~l]]
]
[defun not [v]
"Return true if V is false"
[if v #f #t]
]
[defun list [...arguments]
"Return ARGUMENTS as a list"
...arguments
]
[defun default [arg default-value]
"Returns ARG or DEFAULT-VALUE if ARG is #nil"
[if arg arg default-value]
]
[defun caar [p]
"[car [car p]]"
[car [car p]]
]
[defun cadr [p]
"[car [cdr p]]"
[car [cdr p]]
]
[defun cdar [p]
"[cdr [car p]]"
[cdr [car p]]
]
[defun cddr [p]
"[cdr [cdr p]]"
[cdr [cdr p]]
]
[defun cadar [p]
"[cdr [car p]]"
[car [cdr [car p]]]
]
[defun caddr [p]
"[car [cdr [cdr p]]]"
[car [cdr [cdr p]]]
]
[defun cdddr [p]
"[cdr [cdr [cdr p]]]"
[cdr [cdr [cdr p]]]
]
[defun cadddr [p]
"[car [cdr [cdr [cdr p]]]]"
[car [cdr [cdr [cdr p]]]]
]
[defun caddddr [p]
"[car [cdr [cdr [cdr p]]]]"
[car [cdr [cdr [cdr [cdr p]]]]]
]
