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;;; -*- Mode: LISP; Syntax: COMMON-LISP; Package: CL-PPCRE; Base: 10 -*-
;;; $Header: /usr/local/cvsrep/cl-ppcre/errors.lisp,v 1.22 2009/09/17 19:17:31 edi Exp $
;;; Copyright (c) 2002-2009, Dr. Edmund Weitz. All rights reserved.
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;; * Redistributions of source code must retain the above copyright
;;; notice, this list of conditions and the following disclaimer.
;;; * Redistributions in binary form must reproduce the above
;;; copyright notice, this list of conditions and the following
;;; disclaimer in the documentation and/or other materials
;;; provided with the distribution.
;;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED
;;; OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
;;; WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;;; ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
;;; DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
;;; GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
;;; INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
;;; WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
;;; NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
;;; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
(in-package :cl-ppcre)
(defvar *syntax-error-string* nil
"The string which caused the syntax error.")
(define-condition ppcre-error (simple-error)
()
(:documentation "All errors signaled by CL-PPCRE are of
this type."))
(define-condition ppcre-syntax-error (ppcre-error)
((string :initarg :string
:reader ppcre-syntax-error-string)
(pos :initarg :pos
:reader ppcre-syntax-error-pos))
(:default-initargs
:pos nil
:string *syntax-error-string*)
(:report (lambda (condition stream)
(format stream "~?~@[ at position ~A~]~@[ in string ~S~]"
(simple-condition-format-control condition)
(simple-condition-format-arguments condition)
(ppcre-syntax-error-pos condition)
(ppcre-syntax-error-string condition))))
(:documentation "Signaled if CL-PPCRE's parser encounters an error
when trying to parse a regex string or to convert a parse tree into
its internal representation."))
(setf (documentation 'ppcre-syntax-error-string 'function)
"Returns the string the parser was parsing when the error was
encountered \(or NIL if the error happened while trying to convert a
parse tree).")
(setf (documentation 'ppcre-syntax-error-pos 'function)
"Returns the position within the string where the error occurred
\(or NIL if the error happened while trying to convert a parse tree")
(define-condition ppcre-invocation-error (ppcre-error)
()
(:documentation "Signaled when CL-PPCRE functions are
invoked with wrong arguments."))
(defmacro signal-syntax-error* (pos format-control &rest format-arguments)
`(error 'ppcre-syntax-error
:pos ,pos
:format-control ,format-control
:format-arguments (list ,@format-arguments)))
(defmacro signal-syntax-error (format-control &rest format-arguments)
`(signal-syntax-error* nil ,format-control ,@format-arguments))
(defmacro signal-invocation-error (format-control &rest format-arguments)
`(error 'ppcre-invocation-error
:format-control ,format-control
:format-arguments (list ,@format-arguments)))
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