1 ;;; user.rkt -- global bindings visible to geiser users
3 ;; Copyright (C) 2010, 2011, 2012, 2013, 2014 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)
27 (define top-namespace (current-namespace))
28 (define last-entered (make-parameter ""))
30 (define (do-enter mod name)
33 (current-namespace (module->namespace mod)))
35 (define (file-mod? mod)
39 (path-string? (cadr mod))))
41 (define (submod-path mod)
43 (eq? 'submod (car mod))
45 (let ([parent (cadr mod)])
46 (cond [(path-string? parent) `(submod (file ,parent) ,@(cddr mod))]
47 [(file-mod? parent) mod]
48 [(symbol? parent) mod]
51 (define (module-error stx mod)
52 (raise-syntax-error #f "Invalid module path" stx mod))
54 (define (enter! mod stx)
56 (current-namespace top-namespace)
58 [(symbol? mod) (do-enter mod (symbol->string mod))]
59 [(path-string? mod) (do-enter `(file ,mod) mod)]
60 [(file-mod? mod) (do-enter mod (cadr mod))]
61 [(submod-path mod) => (lambda (m) (do-enter m m))]
62 [else (module-error stx mod)]))
65 (define geiser-main (module->namespace 'geiser))
66 (define (eval-here form) (eval form geiser-main))
70 [res (cond [(equal? form '(unquote apply))
71 (let* ([proc (eval-here (read))]
72 [args (map eval-here (read))]
73 [ev (lambda () (apply proc args))])
74 (eval-in `(,ev) mod lang #t))]
75 [else ((geiser:eval lang) form mod)])])
76 (datum->syntax #f (list 'quote res))))
78 (define (geiser-load stx)
80 [res (call-with-result
82 (visit-module (cond [(file-mod? mod) mod]
83 [(path-string? mod) `(file ,mod)]
85 [else (module-error stx mod)]))
87 (datum->syntax stx (list 'quote res))))
89 (define ((geiser-read prompt))
91 (flush-output (current-error-port))
92 (flush-output (current-output-port))
93 (let* ([in ((current-get-interaction-input-port))]
94 [form ((current-read-interaction) (object-name in) in)])
96 [(uq cmd) (eq? 'unquote (syntax-e #'uq))
97 (case (syntax-e #'cmd)
98 [(start-geiser) (datum->syntax #f `(list 'port ,(start-geiser)))]
99 [(enter) (enter! (read) #'cmd)]
100 [(geiser-eval) (geiser-eval)]
101 [(geiser-load) (geiser-load #'cmd)]
102 [(geiser-no-values) (datum->syntax #f (void))]
103 [(add-to-load-path) (add-to-load-path (read))]
104 [(set-image-cache) (image-cache (read))]
105 [(help) (get-help (read) (read))]
106 [(image-cache) (image-cache)]
107 [(pwd) (~a (current-directory))]
108 [(cd) (current-directory (~a (read)))]
112 (define geiser-prompt
114 (let ([m (namespace->module-name (current-namespace) (last-entered))])
115 (printf "racket@~a> " (regexp-replace* " " m "_")))))
117 (define (geiser-prompt-read prompt)
118 (make-repl-reader (geiser-read prompt)))
120 (define (geiser-loader) (module-loader (current-load/use-compiled)))
122 (define (install-print-handler handler)
123 (let ([p (current-output-port)])
124 (handler p (make-port-print-handler (handler p)))))
126 (define (install-print-handlers)
127 (for-each install-print-handler (list port-print-handler
129 port-display-handler)))
131 (define (init-geiser-repl)
132 (compile-enforce-module-constants #f)
133 (current-load/use-compiled (geiser-loader))
135 (current-prompt-read (geiser-prompt-read geiser-prompt))
136 (current-print maybe-print-image)
137 (install-print-handlers))
139 (define (run-geiser-repl in out enforce-module-constants)
140 (parameterize [(compile-enforce-module-constants enforce-module-constants)
141 (current-input-port in)
142 (current-output-port out)
143 (current-error-port out)
144 (current-load/use-compiled (geiser-loader))
145 (current-prompt-read (geiser-prompt-read geiser-prompt))
146 (current-print maybe-print-image)]
147 (install-print-handlers)
149 (read-eval-print-loop)))
151 (define server-channel (make-channel))
153 (define (run-geiser-server port enforce-module-constants (hostname #f))
156 (run-geiser-repl in out enforce-module-constants))
160 (let ([lsner (tcp-listen p 4 #f hostname)])
161 (let-values ([(_ p __ ___) (tcp-addresses lsner #t)])
162 (channel-put server-channel p)
165 (define (start-geiser (port 0) (hostname #f) (enforce-module-constants #f))
167 (run-geiser-server port enforce-module-constants hostname)))
168 (channel-get server-channel))