5b67fcbb86
Uses of these dots expand to an expression generating a runtime error stating "expected a finished expression, but found a placeholder". Students may write and run unfinished templates (as usual), but will get an error message that is more specific and hopefully more useful than unbound variable. Added tests for this functionality. svn: r6743
47 lines
1.5 KiB
Scheme
47 lines
1.5 KiB
Scheme
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(module htdp-intermediate-lambda mzscheme
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(require "private/teach.ss"
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"private/contract-forms.ss"
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(lib "etc.ss")
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(lib "list.ss")
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(lib "docprovide.ss" "syntax"))
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;; syntax:
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(provide (rename intermediate-define define)
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(rename intermediate-define-struct define-struct)
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(rename intermediate-lambda lambda)
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(rename advanced-app #%app)
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(rename beginner-top #%top)
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(rename intermediate-local local)
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(rename intermediate-let let)
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(rename intermediate-let* let*)
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(rename intermediate-letrec letrec)
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(rename intermediate-recur recur)
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(rename beginner-cond cond)
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(rename beginner-else else)
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(rename beginner-if if)
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(rename beginner-and and)
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(rename beginner-or or)
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(rename beginner-require require)
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(rename beginner-dots ..)
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(rename beginner-dots ...)
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(rename beginner-dots ....)
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(rename beginner-dots .....)
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(rename beginner-dots ......)
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(rename intermediate-quote quote)
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(rename intermediate-quasiquote quasiquote)
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(rename intermediate-unquote unquote)
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(rename intermediate-unquote-splicing unquote-splicing)
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(rename intermediate-time time)
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(rename intermediate-module-begin #%module-begin)
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;; (rename intermediate-contract contract)
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;; (rename intermediate-define-data define-data)
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#%datum
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#%top-interaction
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empty true false)
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;; procedures:
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(provide-and-document
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procedures
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(all-from beginner: (lib "htdp-intermediate.ss" "lang") procedures)))
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