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authorjao <jao@gnu.org>2020-07-20 18:57:35 +0100
committerjao <jao@gnu.org>2020-07-20 18:57:35 +0100
commit94296d8dcfb46812bb142e4fb6a41e9bc810d287 (patch)
tree07e6a73926708fb06fdfa0ad3cbf17c8141ced52 /scheme/chez/geiser/geiser.ss
parent9d66c63c5374001608b2e1807c3e136c82c44f60 (diff)
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files moved from original import locations
Diffstat (limited to 'scheme/chez/geiser/geiser.ss')
-rw-r--r--scheme/chez/geiser/geiser.ss155
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diff --git a/scheme/chez/geiser/geiser.ss b/scheme/chez/geiser/geiser.ss
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--- a/scheme/chez/geiser/geiser.ss
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-(library (geiser)
- (export geiser:eval
- geiser:completions
- geiser:module-completions
- geiser:autodoc
- geiser:no-values
- geiser:load-file
- geiser:newline
- geiser:macroexpand)
- (import (chezscheme))
-
- (define (last-index-of str-list char idx last-idx)
- (if (null? str-list)
- last-idx
- (last-index-of (cdr str-list) char (+ 1 idx) (if (char=? char (car str-list)) idx last-idx))))
-
- (define (obj-file-name name)
- (let ((idx (last-index-of (string->list name) #\. 0 -1)))
- (if (= idx -1)
- (string-append name ".so")
- (string-append (substring name 0 idx) ".so"))))
-
- (define (geiser:load-file filename)
- (let ((output-filename (obj-file-name filename)))
- (maybe-compile-file filename output-filename)
- (load output-filename)))
-
- (define string-prefix?
- (lambda (x y)
- (let ([n (string-length x)])
- (and (fx<= n (string-length y))
- (let prefix? ([i 0])
- (or (fx= i n)
- (and (char=? (string-ref x i) (string-ref y i))
- (prefix? (fx+ i 1)))))))))
-
- (define (geiser:completions prefix . rest)
- rest
- (sort string-ci<?
- (filter (lambda (el)
- (string-prefix? prefix el))
- (map write-to-string (environment-symbols (interaction-environment))))))
-
- (define (write-to-string x)
- (with-output-to-string
- (lambda ()
- (write x))))
-
- (define (geiser:eval module form . rest)
- rest
- (let ((output-string (open-output-string)))
- (write
- (call/cc
- (lambda (k)
- (with-exception-handler
- (lambda (e)
- (k `((result "")
- (output . ,(with-output-to-string
- (lambda ()
- (display-condition e))))
- (error (key . chez-error-message)))))
- (lambda ()
- (call-with-values
- ;; evaluate form, allow for multiple return values,
- ;; and capture output in output-string.
- (lambda ()
- (parameterize ((current-output-port output-string))
- (if module
- (eval form (environment module))
- (eval form))))
- (lambda result
- `((result ,(with-output-to-string
- (lambda ()
- (pretty-print
- (if (null? (cdr result)) (car result) result)))))
- (output . ,(get-output-string output-string))))))))))
- (newline)
- (close-output-port output-string)))
-
- (define (geiser:module-completions prefix . rest)
- (define (substring? s1 s2)
- (let ([n1 (string-length s1)] [n2 (string-length s2)])
- (let loop2 ([i2 0])
- (let loop1 ([i1 0] [j i2])
- (if (fx= i1 n1)
- i2
- (and (not (fx= j n2))
- (if (char=? (string-ref s1 i1) (string-ref s2 j))
- (loop1 (fx+ i1 1) (fx+ j 1))
- (loop2 (fx+ i2 1)))))))))
- (filter (lambda (el)
- (substring? prefix el))
- (map write-to-string (library-list))))
-
- (define (procedure-parameter-list p)
- ;; same as (inspect object), then hitting c
- (let ((s (((inspect/object p) 'code) 'source)))
- (if s
- (let ((form (s 'value)))
- (if (and (list? form)
- (> (length form) 2)
- (eq? (car form) 'lambda))
- (cadr form)
- #f))
- #f)))
-
- (define (operator-arglist operator)
- (let ((binding (eval operator)))
- (if binding
- (let ((arglist (procedure-parameter-list binding)))
- (let loop ((arglist arglist)
- (optionals? #f)
- (required '())
- (optional '()))
- (cond ((null? arglist)
- `(,operator ("args" (("required" ,@(reverse required))
- ("optional" ,@(reverse optional))
- ("key")
- ;; ("module" ,module)
- ))))
- ((symbol? arglist)
- (loop '()
- #t
- required
- (cons "..." (cons arglist optional))))
- (else
- (loop
- (cdr arglist)
- optionals?
- (if optionals? required (cons (car arglist) required))
- (if optionals? (cons (car arglist) optional) optional))))))
- '())))
-
- (define (geiser:autodoc ids . rest)
- (cond ((null? ids) '())
- ((not (list? ids))
- (geiser:autodoc (list ids)))
- ((not (symbol? (car ids)))
- (geiser:autodoc (cdr ids)))
- (else
- (map (lambda (id)
- (operator-arglist id))
- ids))))
-
- (define (geiser:no-values)
- #f)
-
- (define (geiser:newline)
- #f)
-
- (define (geiser:macroexpand form . rest)
- (with-output-to-string
- (lambda ()
- (pretty-print
- (syntax->datum (expand form)))))))