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authorJose Antonio Ortega Ruiz <jao@gnu.org>2010-05-23 23:10:52 +0200
committerJose Antonio Ortega Ruiz <jao@gnu.org>2010-05-23 23:10:52 +0200
commit94f76a1565f09d189d9f2cef6d3df7860321709e (patch)
tree766fd38a46c3cd5dd4835ec73f57598d698466cf /scheme/plt/geiser/utils.rkt
parentacceb169d10e6096124a79b57d1c7e2dc447d37d (diff)
downloadgeiser-guile-94f76a1565f09d189d9f2cef6d3df7860321709e.tar.gz
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Racket support (PLT 5 needed).
Diffstat (limited to 'scheme/plt/geiser/utils.rkt')
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diff --git a/scheme/plt/geiser/utils.rkt b/scheme/plt/geiser/utils.rkt
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+;;; utils.ss -- generic utilities
+
+;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
+
+;; This program is free software; you can redistribute it and/or
+;; modify it under the terms of the Modified BSD License. You should
+;; have received a copy of the license along with this program. If
+;; not, see <http://www.xfree86.org/3.3.6/COPYRIGHT2.html#5>.
+
+;; Start date: Sun May 03, 2009 03:09
+
+#lang scheme
+
+(provide pair->list
+ keyword->symbol
+ symbol->keyword)
+
+(define (pair->list pair)
+ (let loop ((d pair) (s '()))
+ (cond ((null? d) (reverse s))
+ ((symbol? d) (reverse (cons d s)))
+ (else (loop (cdr d) (cons (car d) s))))))
+
+(define keyword->symbol (compose string->symbol keyword->string))
+(define (symbol->keyword sym) (string->keyword (format "~a" sym)))
+
+;;; utils.ss ends here