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Using let-keywords* for repl parameters.

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Alex Shinn 2013-07-08 22:35:54 +09:00
parent e37011f358
commit ceaf4b760e
2 changed files with 28 additions and 39 deletions
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65
lib/chibi/repl.scm
View file

@ -327,45 +327,34 @@
(set-port-fold-case! in (port-fold-case? in2))
expr-list)))))
(define (keywords->repl o)
(let* ((in (cond ((memq 'in: o) => cadr) (else (current-input-port))))
(out (cond ((memq 'out: o) => cadr) (else (current-output-port))))
(escape (cond ((memq 'escape: o) => cadr) (else #\@)))
(module (cond ((memq 'module: o) => cadr) (else #f)))
(env
(cond
((memq 'environment: o) =>
(lambda (x)
(if module
(error (string-append "The module: and environment: keyword "
"arguments should not both be given.")))
(cadr x)))
(module
(define (keywords->repl ls)
(let-keywords* ls
((in in: (current-input-port))
(out out: (current-output-port))
(escape escape: #\@)
(module module: #f)
(env
environment:
(if module
(module-env
(if (module? module) module (load-module module))))
(else (interaction-environment))))
(make-prompt
(cond
((memq 'make-prompt: o) => cadr)
(else
(lambda (module)
(string-append (if module (write-to-string module) "") "> ")))))
(history-file
(cond ((memq 'history-file: o) => cadr)
(else (string-append (get-environment-variable "HOME")
"/.chibi-repl-history"))))
(history
(cond ((memq 'history: o) => cadr)
(else
(or (protect (exn (else #f))
(list->history
(call-with-input-file history-file read)))
(make-history)))))
(raw? (cond ((memq 'raw?: o) => cadr)
(else (member (get-environment-variable "TERM")
'("emacs" "dumb")))))
(meta-env (cond ((memq 'meta: o) => cadr)
(else (module-env (load-module '(meta)))))))
(if (module? module) module (load-module module)))
(interaction-environment)))
(make-prompt
make-prompt:
(lambda (module)
(string-append (if module (write-to-string module) "") "> ")))
(history-file
history-file:
(string-append (get-environment-variable "HOME")
"/.chibi-repl-history"))
(history
history:
(or (protect (exn (else #f))
(list->history (call-with-input-file history-file read)))
(make-history)))
(raw? raw?:
(member (get-environment-variable "TERM") '("emacs" "dumb")))
(meta-env meta-env: (module-env (load-module '(meta)))))
(make-repl
in out escape module env meta-env make-prompt history-file history raw?)))

2
lib/chibi/repl.sld
View file

@ -3,7 +3,7 @@
(export repl)
(import (chibi) (only (meta) load-module)
(chibi ast) (chibi modules) (chibi doc)
(chibi string) (chibi io)
(chibi string) (chibi io) (chibi optional)
(chibi process) (chibi term edit-line)
(srfi 1) (srfi 9) (srfi 18) (srfi 38) (srfi 95) (srfi 98))
(include "repl.scm"))