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diff --git a/libk3b/tools/k3bvalidators.h b/libk3b/tools/k3bvalidators.h
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+/* 
+ *
+ * $Id: k3bvalidators.h 619556 2007-01-03 17:38:12Z trueg $
+ * Copyright (C) 2003-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * This file is part of the K3b project.
+ * Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
+ *
+ * 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 of the License, or
+ * (at your option) any later version.
+ * See the file "COPYING" for the exact licensing terms.
+ */
+
+#ifndef _K3B_VALIDATORS_H_
+#define _K3B_VALIDATORS_H_
+
+#include <qvalidator.h>
+#include "k3b_export.h"
+
+
+/**
+ * Simple validator that validates a string char by char
+ */
+class LIBK3B_EXPORT K3bCharValidator : public QValidator
+{
+ public:
+  K3bCharValidator( QObject* parent = 0, const char* name = 0 );
+
+  virtual State validateChar( const QChar& ) const = 0;
+
+  virtual State validate( QString& s, int& pos ) const;
+
+  /**
+   * Replaces all invalid chars with the repplace char
+   */
+  virtual void fixup( QString& ) const;
+
+  /**
+   * Default to '_'
+   */
+  void setReplaceChar( const QChar& c ) { m_replaceChar = c; }
+
+ private:
+  QChar m_replaceChar;
+};
+
+
+class LIBK3B_EXPORT K3bLatin1Validator : public K3bCharValidator
+{
+ public:
+  K3bLatin1Validator( QObject* parent = 0, const char* name = 0 );
+
+  virtual State validateChar( const QChar& ) const;
+};
+
+
+class LIBK3B_EXPORT K3bAsciiValidator : public K3bLatin1Validator
+{
+ public:
+  K3bAsciiValidator( QObject* parent = 0, const char* name = 0 );
+
+  virtual State validateChar( const QChar& ) const;
+};
+
+
+/**
+ * The K3bValidator extends QRegExpValidator with a fixup method
+ * that just replaces all characters that are not allowed with the 
+ * replace character. It only makes sense for QRegExps that simply
+ * allow or forbid some characters.
+ */
+class LIBK3B_EXPORT K3bValidator : public QRegExpValidator
+{
+ public:
+  K3bValidator( QObject* parent, const char * name = 0 );
+  K3bValidator( const QRegExp& rx, QObject* parent, const char* name = 0 );
+
+  void setReplaceChar( const QChar& s ) { m_replaceChar = s; }
+  const QChar& replaceChar() const { return m_replaceChar; }
+
+  virtual void fixup( QString& ) const;
+
+ private:
+  QChar m_replaceChar;
+};
+
+
+namespace K3bValidators
+{
+  /**
+   * just replaces all characters that are not allowed with the 
+   * replace character. It only makes sense for QRegExps that simply
+   * allow or forbid some characters.
+   */
+  LIBK3B_EXPORT QString fixup( const QString&, const QRegExp&, const QChar& replaceChar = '_' );
+
+  /**
+   * Validates an ISRC code of the form "CCOOOYYSSSSS" where:
+   * <ul>
+   * <li>C: country code (upper case letters or digits)</li>
+   * <li>O: owner code (upper case letters or digits)</li>
+   * <li>Y: year (digits)</li>
+   * <li>S: serial number (digits)</li>
+   * </ul>
+   */
+  LIBK3B_EXPORT K3bValidator* isrcValidator( QObject* parent = 0, const char* name = 0 );
+  
+  /**
+   * This needs to be replaced by something better in the future...
+   * Even the name sucks!
+   */
+  LIBK3B_EXPORT K3bValidator* iso9660Validator( bool allowEmpty = true, QObject* parent = 0, const char* name = 0 );
+
+  /**
+   * (1) d-characters are: A-Z, 0-9, _ (see ISO-9660:1988, Annex A, Table 15)
+   * (2) a-characters are: A-Z, 0-9, _, space, !, ", %, &, ', (, ), *, +, ,, -, ., /, :, ;, <, =, >, ? 
+   * (see ISO-9660:1988, Annex A, Table 14)
+   */
+  enum Iso646Type {
+    Iso646_a, 
+    Iso646_d 
+  };
+
+  LIBK3B_EXPORT K3bValidator* iso646Validator( int type = Iso646_a, 
+				 bool AllowLowerCase = false, 
+				 QObject* parent = 0, const char* name = 0 );
+}
+
+#endif