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f522319598
- Some additioanl tests. - Split step9 tests into optional but self-hosting requirements (metadata on functions) and other optional (conj, metadata on collections).
45 lines
1.4 KiB
Racket
45 lines
1.4 KiB
Racket
#lang racket
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(provide pr_str pr_lst)
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(require "types.rkt")
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(define (pr_str obj print_readably)
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(let ([_r print_readably])
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(cond
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[(list? obj)
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(string-join (map (lambda (o) (pr_str o _r)) obj)
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" " #:before-first "(" #:after-last ")")]
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[(vector? obj)
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(string-join (map (lambda (o) (pr_str o _r)) (vector->list obj))
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" " #:before-first "[" #:after-last "]")]
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[(hash? obj)
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(string-join (dict-map obj (lambda (k v)
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(format "~a ~a"
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(pr_str k _r)
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(pr_str v _r))))
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" " #:before-first "{" #:after-last "}")]
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[(string? obj)
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(if (regexp-match #px"^\u029e" obj)
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(format ":~a" (substring obj 1))
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(if _r
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(format "\"~a\""
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(string-replace
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(string-replace
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(string-replace obj "\\" "\\\\")
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"\"" "\\\"")
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"\n" "\\n"))
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obj))]
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[(number? obj) (number->string obj)]
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[(symbol? obj) (symbol->string obj)]
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[(atom? obj) (format "(atom ~a)" (atom-val obj))]
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[(_nil? obj) "nil"]
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[(eq? #t obj) "true"]
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[(eq? #f obj) "false"]
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[else (format "~a" obj)])))
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(define (pr_lst lst print_readably sep)
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(string-join
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(map (lambda (s) (pr_str s print_readably)) lst)
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sep))
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