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0c7398a7dc
* module/rnrs/6/exceptions.scm: Remove dependency on (rnrs syntax-case); rewrite guard and guard0 in using syntax-rules in terms of syntax-case. * module/rnrs/6/syntax-case.scm: Add syntax-violation implementation.
67 lines
1.8 KiB
Scheme
67 lines
1.8 KiB
Scheme
;;; syntax-case.scm --- R6RS support for `syntax-case' macros
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;; Copyright (C) 2010 Free Software Foundation, Inc.
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;;
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;; This library is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU Lesser General Public
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;; License as published by the Free Software Foundation; either
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;; version 3 of the License, or (at your option) any later version.
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;;
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;; This library is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; Lesser General Public License for more details.
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;;
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;; You should have received a copy of the GNU Lesser General Public
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;; License along with this library; if not, write to the Free Software
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;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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(library (rnrs syntax-case (6))
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(export make-variable-transformer
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syntax-case
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syntax
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identifier?
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bound-identifier=?
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free-identifier=?
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syntax->datum
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datum->syntax
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generate-temporaries
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with-syntax
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quasisyntax
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unsyntax
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unsyntax-splicing
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syntax-violation)
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(import (only (guile) syntax-case
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syntax
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identifier?
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bound-identifier=?
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free-identifier=?
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syntax->datum
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datum->syntax
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generate-temporaries
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with-syntax
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quasisyntax
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unsyntax
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unsyntax-splicing)
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(ice-9 optargs)
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(rnrs base (6))
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(rnrs conditions (6))
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(rnrs exceptions (6))
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(rnrs records procedural (6)))
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(define* (syntax-violation who message form #:optional subform)
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(let* ((conditions (list (make-message-condition message)
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(make-syntax-violation form subform)))
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(conditions (if who
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(cons (make-who-condition who) conditions)
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conditions)))
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(raise (apply condition conditions))))
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)
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