pandoc/pandoc.chicken.scm

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2021-08-24 13:47:07 -04:00
(module pandoc
(pandoc-command-line
pandoc-port->json
pandoc-port->sxml
pandoc-file->json
pandoc-file->sxml)
(import (scheme)
(chicken base)
(only (chicken io) read-byte write-byte)
(only (chicken port) copy-port)
(only (chicken process) process process-wait)
(rename (only (medea) read-json)
(read-json json-read)))
(define (run-read-write args input-port read-output)
(receive (from-sub to-sub sub) (process (car args) (cdr args))
(copy-port input-port to-sub read-byte write-byte)
(close-output-port to-sub)
(let ((output (read-output from-sub)))
(receive (sub clean-exit? exit-status) (process-wait sub)
;; Call `process-wait` before closing the last port to avoid
;; triggering the automatic `process-wait` done by `process`
;; when all ports are closed. If we relied on the implicit
;; `process-wait`, we couldn't find out the exit status.
(close-input-port from-sub)
(if (and clean-exit? (eqv? 0 exit-status)) output
(error "Error running" args))))))
(define (call-with-binary-input-file filename proc)
(let ((port (open-input-file filename #:binary)))
(dynamic-wind (lambda () #f)
(lambda () (proc port))
(lambda () (close-input-port port)))))
(define pandoc-command-line (make-parameter (list "pandoc")))
(include "pandoc.r5rs.scm"))