racket/collects/ffi/examples/use-tcl.rkt

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Racket
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#! /usr/bin/env racket
#lang racket/base
(require "tcl.rkt")
(define (tcldemo . strs)
(for ([s (in-list strs)])
(printf "> ~a\n" s)
(with-handlers ([void (lambda (e)
(eprintf "~a\n" (if (exn? e) (exn-message e) e)))])
(printf "~a\n" (eval-tcl s)))))
(tcldemo "puts 123"
"puts $a"
"set a {this is some stupid string}"
"set b [list a a]"
"set c {[list $a $a]}"
"puts \"a = \\\"$a\\\"\""
"puts \"b = \\\"$b\\\"\""
"puts \"c = \\\"$c\\\"\""
"puts \"even better... \\\"[expr $c]\\\"\"")