Merge branch 'boehm-demers-weiser-gc' into bdw-gc-static-allocbdw-gc-static-alloc

Conflicts:
	acinclude.m4
	libguile/strings.c

2 files changed, 196 insertions, 0 deletions

diff --git a/module/rnrs/bytevector.scm b/module/rnrs/bytevector.scm
new file mode 100644
index 000000000..32929c698
--- /dev/null
+++ b/module/rnrs/bytevector.scm
@@ -0,0 +1,85 @@
+;;;; bytevector.scm --- R6RS bytevector API
+
+;;;;	Copyright (C) 2009 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 <ludo@gnu.org>
+
+;;; 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 bytevector)
+  :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 "libguile" "scm_init_bytevectors")
+
+(define-macro (endianness sym)
+  (if (memq sym '(big little))
+      `(quote ,sym)
+      (error "unsupported endianness" sym)))
+
+;;; Local Variables:
+;;; coding: latin-1
+;;; End:
+
+;;; bytevector.scm ends here
diff --git a/module/rnrs/io/ports.scm b/module/rnrs/io/ports.scm
new file mode 100644
index 000000000..d1b96b31a
--- /dev/null
+++ b/module/rnrs/io/ports.scm
@@ -0,0 +1,111 @@
+;;;; ports.scm --- R6RS port API
+
+;;;;	Copyright (C) 2009 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 <ludo@gnu.org>
+
+;;; Commentary:
+;;;
+;;; The I/O port API of the R6RS is provided by this module.  In many areas
+;;; it complements or refines Guile's own historical port API.  For instance,
+;;; it allows for binary I/O with bytevectors.
+;;;
+;;; Code:
+
+(define-module (rnrs io ports)
+  :re-export (eof-object? port? input-port? output-port?)
+  :export (eof-object
+
+           ;; input & output ports
+           port-transcoder binary-port? transcoded-port
+           port-position set-port-position!
+           port-has-port-position? port-has-set-port-position!?
+           call-with-port
+
+           ;; input ports
+           open-bytevector-input-port
+           make-custom-binary-input-port
+
+           ;; binary input
+           get-u8 lookahead-u8
+           get-bytevector-n get-bytevector-n!
+           get-bytevector-some get-bytevector-all
+
+           ;; output ports
+           open-bytevector-output-port
+           make-custom-binary-output-port
+
+           ;; binary output
+           put-u8 put-bytevector))
+
+(load-extension "libguile" "scm_init_r6rs_ports")
+
+
+
+;;;
+;;; Input and output ports.
+;;;
+
+(define (port-transcoder port)
+  (error "port transcoders are not supported" port))
+
+(define (binary-port? port)
+  ;; So far, we don't support transcoders other than the binary transcoder.
+  #t)
+
+(define (transcoded-port port)
+  (error "port transcoders are not supported" port))
+
+(define (port-position port)
+  "Return the offset (an integer) indicating where the next octet will be
+read from/written to in @var{port}."
+
+  ;; FIXME: We should raise an `&assertion' error when not supported.
+  (seek port 0 SEEK_CUR))
+
+(define (set-port-position! port offset)
+  "Set the position where the next octet will be read from/written to
+@var{port}."
+
+  ;; FIXME: We should raise an `&assertion' error when not supported.
+  (seek port offset SEEK_SET))
+
+(define (port-has-port-position? port)
+  "Return @code{#t} is @var{port} supports @code{port-position}."
+  (and (false-if-exception (port-position port)) #t))
+
+(define (port-has-set-port-position!? port)
+  "Return @code{#t} is @var{port} supports @code{set-port-position!}."
+  (and (false-if-exception (set-port-position! port (port-position port)))
+       #t))
+
+(define (call-with-port port proc)
+  "Call @var{proc}, passing it @var{port} and closing @var{port} upon exit of
+@var{proc}.  Return the return values of @var{proc}."
+  (dynamic-wind
+      (lambda ()
+        #t)
+      (lambda ()
+        (proc port))
+      (lambda ()
+        (close-port port))))
+
+;;; Local Variables:
+;;; coding: latin-1
+;;; End:
+
+;;; ports.scm ends here