Spaces:
Sleeping
Sleeping
| ;;;; bytevectors.scm --- R6RS bytevector API -*- coding: utf-8 -*- | |
| ;;;; Copyright (C) 2009, 2010 Free Software Foundation, Inc. | |
| ;;;; | |
| ;;;; This library is free software; you can redistribute it and/or | |
| ;;;; modify it under the terms of the GNU Lesser General Public | |
| ;;;; License as published by the Free Software Foundation; either | |
| ;;;; version 3 of the License, or (at your option) any later version. | |
| ;;;; | |
| ;;;; This library is distributed in the hope that it will be useful, | |
| ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| ;;;; Lesser General Public License for more details. | |
| ;;;; | |
| ;;;; You should have received a copy of the GNU Lesser General Public | |
| ;;;; License along with this library; if not, write to the Free Software | |
| ;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| ;;; Author: Ludovic Courtès <[email protected]> | |
| ;;; Commentary: | |
| ;;; | |
| ;;; A "bytevector" is a raw bit string. This module provides procedures to | |
| ;;; manipulate bytevectors and interpret their contents in a number of ways: | |
| ;;; bytevector contents can be accessed as signed or unsigned integer of | |
| ;;; various sizes and endianness, as IEEE-754 floating point numbers, or as | |
| ;;; strings. It is a useful tool to decode binary data. | |
| ;;; | |
| ;;; Code: | |
| (define-module (rnrs bytevectors) | |
| #:version (6) | |
| #:export-syntax (endianness) | |
| #:export (native-endianness bytevector? | |
| make-bytevector bytevector-length bytevector=? bytevector-fill! | |
| bytevector-copy! bytevector-copy | |
| uniform-array->bytevector | |
| bytevector-u8-ref bytevector-s8-ref | |
| bytevector-u8-set! bytevector-s8-set! bytevector->u8-list | |
| u8-list->bytevector | |
| bytevector-uint-ref bytevector-uint-set! | |
| bytevector-sint-ref bytevector-sint-set! | |
| bytevector->sint-list bytevector->uint-list | |
| uint-list->bytevector sint-list->bytevector | |
| bytevector-u16-ref bytevector-s16-ref | |
| bytevector-u16-set! bytevector-s16-set! | |
| bytevector-u16-native-ref bytevector-s16-native-ref | |
| bytevector-u16-native-set! bytevector-s16-native-set! | |
| bytevector-u32-ref bytevector-s32-ref | |
| bytevector-u32-set! bytevector-s32-set! | |
| bytevector-u32-native-ref bytevector-s32-native-ref | |
| bytevector-u32-native-set! bytevector-s32-native-set! | |
| bytevector-u64-ref bytevector-s64-ref | |
| bytevector-u64-set! bytevector-s64-set! | |
| bytevector-u64-native-ref bytevector-s64-native-ref | |
| bytevector-u64-native-set! bytevector-s64-native-set! | |
| bytevector-ieee-single-ref | |
| bytevector-ieee-single-set! | |
| bytevector-ieee-single-native-ref | |
| bytevector-ieee-single-native-set! | |
| bytevector-ieee-double-ref | |
| bytevector-ieee-double-set! | |
| bytevector-ieee-double-native-ref | |
| bytevector-ieee-double-native-set! | |
| string->utf8 string->utf16 string->utf32 | |
| utf8->string utf16->string utf32->string)) | |
| (load-extension (string-append "libguile-" (effective-version)) | |
| "scm_init_bytevectors") | |
| (define-macro (endianness sym) | |
| (if (memq sym '(big little)) | |
| `(quote ,sym) | |
| (error "unsupported endianness" sym))) | |
| ;;; bytevector.scm ends here | |