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61 lines
2.0 KiB
Scheme
61 lines
2.0 KiB
Scheme
;; Copyright (C) 2015
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;; "Mu Lei" known as "NalaGinrut" <NalaGinrut@gmail.com>
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;; This file is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This file is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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(library (printer)
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(export pr_str)
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(import (guile) (types) (ice-9 match) (ice-9 regex)))
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(define (print-hashmap hm p)
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(call-with-output-string
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(lambda (port)
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(display "{" port)
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(display
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(string-join
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(hash-map->list
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(lambda (k v)
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(format #f "~a ~a" (p k) (p v)))
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hm)
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" ")
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port)
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(display "}" port))))
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(define (pr_str obj readable?)
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(define (->str s)
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(string-sub
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(string-sub
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(string-sub s "\\\\" "\\\\")
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"\"" "\\\"")
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"\n" "\\n"))
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(define (%pr_str o) (pr_str o readable?))
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(match obj
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((? box?) (%pr_str (unbox obj)))
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((? is-func?) "#<function>")
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((? is-macro?) "#<macro>")
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((? list?) (format #f "(~{~a~^ ~})" (map %pr_str obj)))
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((? vector?) (format #f "[~{~a~^ ~}]" (map %pr_str (vector->list obj))))
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((? hash-table?) (print-hashmap obj %pr_str))
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((? string?)
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(cond
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((_keyword? obj)
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=> (lambda (m) (format #f ":~a" (substring obj 1))))
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(else (if readable? (format #f "\"~a\"" (->str obj)) obj))))
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;;((? number?) (format #f "~a" obj))
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;;((? symbol?) (format #f "~a" obj))
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((? atom?) (format #f "(atom ~a)" (%pr_str (atom-val obj))))
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((? _nil?) "nil")
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(#t "true")
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(#f "false")
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(else (format #f "~a" obj))))
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