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Diffstat (limited to 'module/rnrs/syntax-case.scm')
-rw-r--r-- | module/rnrs/syntax-case.scm | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/module/rnrs/syntax-case.scm b/module/rnrs/syntax-case.scm new file mode 100644 index 000000000..9d390006d --- /dev/null +++ b/module/rnrs/syntax-case.scm @@ -0,0 +1,68 @@ +;;; syntax-case.scm --- R6RS support for `syntax-case' macros + +;; Copyright (C) 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 + + +(library (rnrs syntax-case (6)) + (export make-variable-transformer + syntax-case + syntax + + identifier? + bound-identifier=? + free-identifier=? + + syntax->datum + datum->syntax + generate-temporaries + with-syntax + + quasisyntax + unsyntax + unsyntax-splicing + + syntax-violation) + (import (only (guile) make-variable-transformer + syntax-case + syntax + + identifier? + bound-identifier=? + free-identifier=? + + syntax->datum + datum->syntax + generate-temporaries + with-syntax + + quasisyntax + unsyntax + unsyntax-splicing) + (ice-9 optargs) + (rnrs base (6)) + (rnrs conditions (6)) + (rnrs exceptions (6)) + (rnrs records procedural (6))) + + (define* (syntax-violation who message form #:optional subform) + (let* ((conditions (list (make-message-condition message) + (make-syntax-violation form subform))) + (conditions (if who + (cons (make-who-condition who) conditions) + conditions))) + (raise (apply condition conditions)))) +) |