"git-clone git://git.sv.gnu.org/guile.git", or can be browsed on-line at
http://git.sv.gnu.org/gitweb/?p=guile.git . See `README' for details.
+* New modules (see the manual for details)
+
+** `(srfi srfi-88)'
+
* New features (see the manual for details)
** New `postfix' read option, for SRFI-88 keyword syntax
+2008-04-26 Ludovic Courtès <ludo@gnu.org>
+
+ * srfi-modules.texi (SRFI-88): New section.
+ * api-data.texi (Keyword Read Syntax): Add reference to
+ `SRFI-88'.
+
2008-04-17 Neil Jerram <neil@ossau.uklinux.net>
* posix.texi (File System): New doc for file-exists?.
@cindex SRFI-88 keyword syntax
If the @code{keyword} read option is set to @code{'postfix}, Guile
-recognizes the @uref{http://srfi.schemers.org/srfi-88/srfi-88.html,
-SRFI-88 read syntax} @code{NAME:}. Otherwise, tokens of this form are
-read as symbols.
+recognizes the SRFI-88 read syntax @code{NAME:} (@pxref{SRFI-88}).
+Otherwise, tokens of this form are read as symbols.
To enable and disable the alternative non-R5RS keyword syntax, you use
the @code{read-set!} procedure documented in @ref{User level options
@c -*-texinfo-*-
@c This is part of the GNU Guile Reference Manual.
-@c Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2006, 2007
+@c Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008
@c Free Software Foundation, Inc.
@c See the file guile.texi for copying conditions.
* SRFI-60:: Integers as bits.
* SRFI-61:: A more general `cond' clause
* SRFI-69:: Basic hash tables.
+* SRFI-88:: Keyword objects.
@end menu
@code{hash} is a backwards-compatible replacement for Guile's built-in
@code{hash}.
+@node SRFI-88
+@subsection SRFI-88 Keyword Objects
+@cindex SRFI-88
+@cindex keyword objects
+
+@uref{http://srfi.schemers.org/srfi/srfi-88.html, SRFI-88} provides
+@dfn{keyword objects}, which are equivalent to Guile's keywords
+(@pxref{Keywords}). SRFI-88 keywords can be entered using the
+@dfn{postfix keyword syntax}, which consists of an identifier followed
+by @code{:} (@pxref{Reader options, @code{postfix} keyword syntax}).
+SRFI-88 can be made available with:
+
+@example
+(use-modules (srfi srfi-88))
+@end example
+
+Doing so installs the right reader option for keyword syntax, using
+@code{(read-set! keywords 'postfix)}. It also provides the procedures
+described below.
+
+@deffn {Scheme Procedure} keyword? obj
+Return @code{#t} if @var{obj} is a keyword. This is the same procedure
+as the same-named built-in procedure (@pxref{Keyword Procedures,
+@code{keyword?}}).
+
+@example
+(keyword? foo:) @result{} #t
+(keyword? 'foo:) @result{} #t
+(keyword? "foo") @result{} #f
+@end example
+@end deffn
+
+@deffn {Scheme Procedure} keyword->string kw
+Return the name of @var{kw} as a string, i.e., without the trailing
+colon. The returned string may not be modified, e.g., with
+@code{string-set!}.
+
+@example
+(keyword->string foo:) @result{} "foo"
+@end example
+@end deffn
+
+@deffn {Scheme Procedure} string->keyword str
+Return the keyword object whose name is @var{str}.
+
+@example
+(keyword->string (string->keyword "a b c")) @result{} "a b c"
+@end example
+@end deffn
+
@c srfi-modules.texi ends here
+2008-04-26 Ludovic Courtès <ludo@gnu.org>
+
+ * Makefile.am (srfi_DATA): Add `srfi-88.scm'.
+ * srfi-88.scm: New file.
+
2008-03-12 Ludovic Courtès <ludo@gnu.org>
* srfi-37.scm (args-fold)[short-option]: Set ARGS to `(cdr
## Process this file with Automake to create Makefile.in
##
-## Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+## Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
##
## This file is part of GUILE.
##
srfi-37.scm \
srfi-39.scm \
srfi-60.scm \
- srfi-69.scm
+ srfi-69.scm \
+ srfi-88.scm
EXTRA_DIST = $(srfi_DATA)
TAGS_FILES = $(srfi_DATA)
--- /dev/null
+;;; srfi-88.scm --- Keyword Objects
+
+;; Copyright (C) 2008 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 2.1 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:
+
+;; This is a convenience module providing SRFI-88 "keyword object". All it
+;; does is setup the right reader option and export keyword-related
+;; convenience procedures.
+
+;;; Code:
+
+(define-module (srfi srfi-88)
+ #:re-export (keyword?)
+ #:export (keyword->string string->keyword))
+
+(cond-expand-provide (current-module) '(srfi-88))
+
+\f
+(read-set! keywords 'postfix)
+
+(define (keyword->string k)
+ "Return the name of @var{k} as a string."
+ (symbol->string (keyword->symbol k)))
+
+(define (string->keyword s)
+ "Return the keyword object whose name is @var{s}."
+ (symbol->keyword (string->symbol s)))
+
+;;; Local Variables:
+;;; coding: latin-1
+;;; End:
+
+;;; srfi-88.scm ends here
+2008-04-26 Ludovic Courtès <ludo@gnu.org>
+
+ * Makefile.am (SCM_TESTS): Add `tests/srfi-88.test'.
+ * tests/srfi-88.test: New file.
+
2008-04-15 Ludovic Courtès <ludo@gnu.org>
* tests/reader.test (read-options)[prefix non-keywords, postfix
## Process this file with automake to produce Makefile.in.
##
-## Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007 Software Foundation, Inc.
+## Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 Software Foundation, Inc.
##
## This file is part of GUILE.
##
tests/srfi-39.test \
tests/srfi-60.test \
tests/srfi-69.test \
+ tests/srfi-88.test \
tests/srfi-4.test \
tests/srfi-9.test \
tests/strings.test \
--- /dev/null
+;;;; srfi-88.test --- Test suite for SRFI-88 -*- Scheme -*-
+;;;; Ludovic Courtès <ludo@gnu.org>
+;;;;
+;;;; Copyright (C) 2008 Free Software Foundation, Inc.
+;;;;
+;;;; This program is free software; you can redistribute it and/or modify
+;;;; it under the terms of the GNU General Public License as published by
+;;;; the Free Software Foundation; either version 2, or (at your option)
+;;;; any later version.
+;;;;
+;;;; This program 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 General Public License for more details.
+;;;;
+;;;; You should have received a copy of the GNU General Public License
+;;;; along with this software; see the file COPYING. If not, write to
+;;;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+;;;; Boston, MA 02110-1301 USA
+
+(define-module (test-srfi-88)
+ :use-module (test-suite lib)
+ :use-module (srfi srfi-88))
+
+\f
+;; Most of the test cases are taken from SRFI-88.
+
+(with-test-prefix "srfi-88"
+
+ (pass-if "cond-expand"
+ (cond-expand (srfi-88 #t)
+ (else #f)))
+
+ (pass-if "keyword?"
+ (and (keyword? 'foo:)
+ (keyword? foo:)
+ (not (keyword? 'foo))
+ (not (keyword? ':))
+ (keyword? (car '(a: b:)))
+ (not (keyword? "bar"))))
+
+ (pass-if "keyword->string"
+ (and (string=? (keyword->string foo:) "foo")
+ (string=? "a b c"
+ (keyword->string (string->keyword "a b c")))))
+
+ (pass-if "string->keyword"
+ (eq? (string->keyword "foo") foo:))
+
+ (pass-if "empty keyword"
+ ;; XXX: We don't currently support syntax of the form
+ ;; `#{extended symbol}#:'.
+ (string=? ""
+ (keyword->string (string->keyword "")))))
+
+
+;;; Local Variables:
+;;; coding: latin-1
+;;; End:
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