diff options
Diffstat (limited to 'elk.init')
| -rw-r--r-- | elk.init | 36 |
1 files changed, 31 insertions, 5 deletions
@@ -1,5 +1,5 @@ ;;;"elk.init" Initialisation file for SLIB for ELK 2.1 -*- Scheme -*- -;;; Copyright (C) 1991, 1992, 1993 Aubrey Jaffer. +;;; Copyright (C) 1991, 1992, 1993, 1994, 1997 Aubrey Jaffer. ; ;Permission to copy this software, to redistribute it, and to use it ;for any purpose is granted, subject to the following restrictions and @@ -41,7 +41,7 @@ ;;; (scheme-implementation-version) should return a string describing ;;; the version the scheme implementation loading this file. -(define (scheme-implementation-version) "?2.1") +(define (scheme-implementation-version) "3.0") ;;; (implementation-vicinity) should be defined to be the pathname of ;;; the directory where any auxillary files to your Scheme @@ -56,6 +56,10 @@ ;;; (library-vicinity) should be defined to be the pathname of the ;;; directory where files of Scheme library functions reside. +(require 'unix) +(define getenv unix-getenv) +(define system unix-system) + (define library-vicinity (let ((library-path (or (getenv "SCHEME_LIBRARY_PATH") @@ -67,6 +71,14 @@ (else ""))))) (lambda () library-path))) +;;; (home-vicinity) should return the vicinity of the user's HOME +;;; directory, the directory which typically contains files which +;;; customize a computer environment for a user. + +(define home-vicinity + (let ((home-path (getenv "HOME"))) + (lambda () home-path))) + ;;; *features* should be set to a list of symbols describing features ;;; of this implementation. Suggestions for features are: @@ -117,8 +129,6 @@ (let ((tmp (string-append "slib_" (number->string cntr)))) (if (file-exists? tmp) (tmpnam) tmp))))) -(require 'unix) - ; Pull in GENTENV and SYSTEM ;;; (FILE-EXISTS? <string>) already here. @@ -218,8 +228,24 @@ (evl o)) (set! *load-pathname* old-load-pathname))))) +(define slib:warn + (lambda args + (let ((port (current-error-port))) + (display "Warn: " port) + (for-each (lambda (x) (display x port)) args)))) + ;;; define an error procedure for the library -(define slib:error error) +(define slib:error + (lambda args + (let ((port (open-output-string)) + (err (if (and (pair? args) (symbol? (car args))) + (car args) 'slib)) + (args (if (and (pair? args) (symbol? (car args))) + (cdr args) args))) + (for-each (lambda (x) (display x port) (display " " port)) args) + (let ((str (get-output-string port))) + (close-output-port port) + (error err str))))) ;;; define these as appropriate for your system. (define slib:tab #\tab) |