tjhintz/chicken-scheme-shell
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This commit is contained in:
Thomas Hintz
2014-04-10 07:19:35 -07:00
parent afbb7d9b6b
commit 77f142e4c2
3 changed files with 104 additions and 40 deletions
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3
foo.scm Normal file
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@@ -0,0 +1,3 @@
(import chicken scheme)
(print (eval (read)))

60
hiss-old.scm Normal file
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@@ -0,0 +1,60 @@
;;; documentation at http://thintz.com/chicken-scheme-shell
(use readline srfi-1)
(include "macros.scm")
(define (getenv2 e)
;; handles exorcism of getenv from 4.6.4 onwards
(handle-exceptions
exn
(get-environment-variable e)
(getenv e)))
(current-input-port (make-gnu-readline-port))
(gnu-history-install-file-manager
(string-append (or (getenv2 "HOME") ".") "/.csi.history"))
(repl-prompt (lambda () "$ "))
(define config-file
(make-parameter (string-append (or (getenv2 "HOME") ".") "/.hiss")))
(when (file-exists? (config-file))
(load (config-file)))
(define exit? (make-parameter #f))
(define (exit) (exit? #t))
(define (%run-cmd cmd) (with-input-from-pipe cmd read-file))
; now we can can actually use things in a more lispy way
; #;1> (cmd->list "ls" read-line)
; (file1 file2 file3)
; #;2> (map (lambda (file) (run (string-append "cat " file)))
; (cmd->list "ls" read-line))
; ...contents of all the files in the current directory
(define (cmd->list cmd read-func)
(with-input-from-pipe
cmd
(lambda ()
(letrec ((get-next (lambda (o)
(let ((v (read-func)))
(if (not (eof-object? v))
(get-next (cons v o))
(reverse o))))))
(get-next '())))))
(define (run cmd) (process-wait (process-run cmd)))
(define (_ . r) (cmd->list (fold (lambda (e o) (++ o " " e)) "" r) read-line))
(define (shell-repl)
(if (exit?)
#t
(begin (handle-exceptions
exn
(begin (print-error-message exn)
(display (with-output-to-string (lambda () (print-call-chain)))))
(let ((x (read)))
(write (eval x))))
(newline)
(shell-repl))))
(shell-repl)

81
hiss.scm
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@@ -1,49 +1,49 @@
;;; documentation at http://thintz.com/chicken-scheme-shell
(use readline srfi-1)
(include "macros.scm")
(import chicken scheme)
(use parley parley-auto-completion srfi-1 apropos posix)
(define (getenv2 e)
;; handles exorcism of getenv from 4.6.4 onwards
(handle-exceptions
exn
(get-environment-variable e)
(getenv e)))
(set-read-syntax!
#\[
(lambda (port)
(letrec ((read-cmd (lambda (cmd)
(let ((c (peek-char port)))
(cond ((eof-object? c)
(error "EOF encountered while parsing { ... } clause"))
((char=? c #\])
(read-char port)
cmd)
((or (char=? c #\') (char=? c #\())
(read-cmd (string-append cmd (->string (eval (read port))))))
(else
(read-char port)
(read-cmd (string-append cmd (->string c)))))))))
`(begin (let ((result (with-input-from-pipe ,(read-cmd "") read-lines)))
;(for-each (cut print <>) result)
(for-each (lambda (l) (print l)) result)
(values #t result))))))
(current-input-port (make-gnu-readline-port))
(gnu-history-install-file-manager
(string-append (or (getenv2 "HOME") ".") "/.csi.history"))
(repl-prompt (lambda () "$ "))
; match (foo or foo
(word-class '($ (: (& (~ "(") (~ whitespace)) (+ (~ whitespace)))))
(define config-file
(make-parameter (string-append (or (getenv2 "HOME") ".") "/.hiss")))
(when (file-exists? (config-file))
(load (config-file)))
(define (get-completions)
(map (lambda (s) (string-append (symbol->string s) " ")) (delete-duplicates! (apropos-list "" macros?: #t))))
(completion-choices (lambda (input position last-word) (get-completions)))
(add-key-binding! #\tab auto-completion-handler)
(let ((old (current-input-port)))
(current-input-port (make-parley-port old)))
(define exit? (make-parameter #f))
(define (exit) (exit? #t))
(define (%run-cmd cmd) (with-input-from-pipe cmd read-file))
(define line-num (make-parameter 0))
(define repl-prompt (make-parameter (lambda () (string-append "#;" (number->string (line-num)) "> "))))
; now we can can actually use things in a more lispy way
; #;1> (cmd->list "ls" read-line)
; (file1 file2 file3)
; #;2> (map (lambda (file) (run (string-append "cat " file)))
; (cmd->list "ls" read-line))
; ...contents of all the files in the current directory
(define (cmd->list cmd read-func)
(with-input-from-pipe
cmd
(lambda ()
(letrec ((get-next (lambda (o)
(let ((v (read-func)))
(if (not (eof-object? v))
(get-next (cons v o))
(reverse o))))))
(get-next '())))))
(define (run cmd) (process-wait (process-run cmd)))
(define (_ . r) (cmd->list (fold (lambda (e o) (++ o " " e)) "" r) read-line))
(define config-file
(make-parameter (string-append (or (get-environment-variable "HOME") ".") "/.hiss")))
(when (file-exists? (config-file))
(load (config-file)))
(define (shell-repl)
(if (exit?)
@@ -52,8 +52,9 @@
exn
(begin (print-error-message exn)
(display (with-output-to-string (lambda () (print-call-chain)))))
(let ((x (read)))
(write (eval x))))
(let ((x (with-input-from-string (parley ((repl-prompt))) (lambda () (read)))))
(write (eval x))
(line-num (+ (line-num) 1))))
(newline)
(shell-repl))))