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Setup to use macro from test library
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1 changed files with 25 additions and 24 deletions
49
test2.scm
49
test2.scm
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@ -5,6 +5,7 @@
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;
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;
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(import (scheme base)
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(test-lib test)
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(scheme eval)
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(scheme write))
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@ -17,36 +18,36 @@
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;
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; WTF is the macro unable to be evaluated when the same code works as part of *defined-macros*???
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;
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(define-syntax test
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(er-macro-transformer
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(lambda (expr rename compare)
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(cond ((null? (cdr expr)) #t)
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; (cond ((null? (cdr expr)))
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((null? (cddr expr)) (cadr expr))
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(else (list (rename 'if) (cadr expr)
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(cons (rename 'and) (cddr expr))
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#f))))))
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(define-syntax or
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(er-macro-transformer
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(lambda (expr rename compare)
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(cond ((null? (cdr expr)) #f)
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((null? (cddr expr)) (cadr expr))
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(else
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(list (rename 'let) (list (list (rename 'tmp) (cadr expr)))
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(list (rename 'if) (rename 'tmp)
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(rename 'tmp)
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(cons (rename 'or) (cddr expr)))))))))
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;(define-syntax test
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; (er-macro-transformer
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; (lambda (expr rename compare)
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; (cond ((null? (cdr expr)) #t)
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;; (cond ((null? (cdr expr)))
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; ((null? (cddr expr)) (cadr expr))
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; (else (list (rename 'if) (cadr expr)
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; (cons (rename 'and) (cddr expr))
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; #f))))))
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;
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;(define-syntax or
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; (er-macro-transformer
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; (lambda (expr rename compare)
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; (cond ((null? (cdr expr)) #f)
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; ((null? (cddr expr)) (cadr expr))
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; (else
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; (list (rename 'let) (list (list (rename 'tmp) (cadr expr)))
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; (list (rename 'if) (rename 'tmp)
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; (rename 'tmp)
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; (cons (rename 'or) (cddr expr)))))))))
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(write (test 1 2 3))
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(write (or 1 2 3 'or))
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(write (or #f 2 3 'or))
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(write (my-or 1 2 3 'or))
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(write (my-or #f 2 3 'or))
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;(test 'done)
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'done
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(define x 1)
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(write x)
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(write
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(eval 'or))
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(eval 'my-or))
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(write
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(eval '(or 1 2 x)))
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(eval '(my-or 1 2 x)))
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