1 ;;; user.rkt -- global bindings visible to geiser users
3 ;; Copyright (C) 2010, 2011, 2012 Jose Antonio Ortega Ruiz
5 ;; This program is free software; you can redistribute it and/or
6 ;; modify it under the terms of the Modified BSD License. You should
7 ;; have received a copy of the license along with this program. If
8 ;; not, see <http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5>.
10 ;; Start date: Wed Mar 31, 2010 22:24
14 (provide init-geiser-repl run-geiser-server start-geiser)
16 (require (for-syntax racket/base)
25 (define top-namespace (current-namespace))
26 (define last-entered (make-parameter ""))
28 (define (do-enter mod name)
30 (current-namespace (module->namespace mod))
33 (define (enter! mod stx)
35 (current-namespace top-namespace)
37 [(symbol? mod) (do-enter mod (symbol->string mod))]
41 (path-string? (cadr mod))) (do-enter mod (cadr mod))]
42 [(path-string? mod) (do-enter `(file ,mod) mod)]
43 [else (raise-syntax-error
45 "not a valid module path, and not #f"
49 (define orig-loader (current-load/use-compiled))
50 (define geiser-loader (module-loader orig-loader))
53 (define geiser-main (module->namespace 'geiser))
54 (define (eval-here form) (eval form geiser-main))
60 (cond [(equal? form '(unquote apply))
61 (let* ([proc (eval-here (read))]
62 [args (map eval-here (read))]
63 [ev (lambda () (apply proc args))])
64 (eval-in `(,ev) mod lang))]
65 [else ((geiser:eval lang) form mod)])))))
67 (define ((geiser-read prompt))
70 (let* ([in ((current-get-interaction-input-port))]
71 [form ((current-read-interaction) (object-name in) in)])
73 [(uq cmd) (eq? 'unquote (syntax-e #'uq))
74 (case (syntax-e #'cmd)
75 [(start-geiser) (datum->syntax #f `(list 'port ,(start-geiser)))]
76 [(enter) (enter! (read) #'cmd)]
77 [(geiser-eval) (geiser-eval)]
78 [(geiser-no-values) (datum->syntax #f (void))]
79 [(add-to-load-path) (add-to-load-path (read))]
80 [(set-image-cache) (image-cache (read))]
81 [(image-cache) (image-cache)]
82 [(gcd) (current-directory)]
83 [(cd) (current-directory (read))]
90 (namespace->module-name (current-namespace) (last-entered)))))
92 (define (geiser-prompt-read prompt)
93 (make-repl-reader (geiser-read prompt)))
95 (define (init-geiser-repl)
96 (compile-enforce-module-constants #f)
97 (current-load/use-compiled geiser-loader)
98 (current-prompt-read (geiser-prompt-read geiser-prompt))
99 (current-print maybe-print-image))
101 (define (run-geiser-repl in out enforce-module-constants)
102 (parameterize [(compile-enforce-module-constants enforce-module-constants)
103 (current-input-port in)
104 (current-output-port out)
105 (current-error-port out)
106 (current-load/use-compiled geiser-loader)
107 (current-prompt-read (geiser-prompt-read geiser-prompt))
108 (current-print maybe-print-image)]
109 (read-eval-print-loop)))
111 (define server-channel (make-channel))
113 (define (run-geiser-server port enforce-module-constants (hostname #f))
116 (run-geiser-repl in out enforce-module-constants))
120 (let ([lsner (tcp-listen p 4 #f hostname)])
121 (let-values ([(_ p __ ___) (tcp-addresses lsner #t)])
122 (channel-put server-channel p)
125 (define (start-geiser (port 0) (hostname #f) (enforce-module-constants #f))
126 (thread (lambda () (run-geiser-server port enforce-module-constants hostname)))
127 (channel-get server-channel))