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+/* -*- c++ -*-
+ ksieve/lexer.h
+
+ This file is part of KSieve,
+ the KDE internet mail/usenet news message filtering library.
+ Copyright (c) 2003 Marc Mutz <mutz@kde.org>
+
+ KSieve is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License, version 2, as
+ published by the Free Software Foundation.
+
+ KSieve 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 program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of this program with any edition of
+ the Qt library by Trolltech AS, Norway (or with modified versions
+ of Qt that use the same license as Qt), and distribute linked
+ combinations including the two. You must obey the GNU General
+ Public License in all respects for all of the code used other than
+ Qt. If you modify this file, you may extend this exception to
+ your version of the file, but you are not obligated to do so. If
+ you do not wish to do so, delete this exception statement from
+ your version.
+*/
+
+#ifndef __KSIEVE_LEXER_H__
+#define __KSIEVE_LEXER_H__
+
+class QString;
+
+namespace KSieve {
+
+ class Error;
+
+ class Lexer {
+ public:
+ enum Options {
+ IncludeComments = 0,
+ IgnoreComments = 1,
+ IncludeLineFeeds = 0,
+ IgnoreLineFeeds = 2
+ };
+
+ Lexer( const char * scursor, const char * send, int options=0 );
+ ~Lexer();
+
+ /** Return whether comments are returned by @ref
+ nextToken. Default is to not ignore comments. Ignoring them
+ can speed up script parsing a bit, and can be used when the
+ internal representation of the script won't be serialized into
+ string form again (or if you simply want to delete all
+ comments)
+ **/
+ bool ignoreComments() const;
+
+ /** Return whether line feeds are returned by @ref
+ nextToken. Default is to not ignore line feeds. Ignoring them
+ can speed up script parsing a bit, and can be used when the
+ internal representation of the script won't be serialized into
+ string form again.
+ **/
+ bool ignoreLineFeeds() const;
+
+ const Error & error() const;
+
+ bool atEnd() const;
+ int column() const;
+ int line() const;
+
+ enum Token {
+ None = 0,
+ Number, // 1, 100, 1M, 10k, 1G, 2g, 3m
+ Identifier, // atom
+ Tag, // :tag
+ Special, // {} [] () ,;
+ QuotedString, // "foo\"bar" -> foo"bar
+ MultiLineString, // text: \nfoo\n. -> foo
+ HashComment, // # foo
+ BracketComment, // /* foo */
+ LineFeeds // the number of line feeds encountered
+ };
+
+ /** Parse the next token and return it's type. @p result will contain
+ the value of the token. */
+ Token nextToken( QString & result );
+
+ void save();
+ void restore();
+
+ class Impl;
+ private:
+ Impl * i;
+
+ private:
+ const Lexer & operator=( const Lexer & );
+ Lexer( const Lexer & );
+ };
+
+} // namespace KSieve
+
+#endif // __KSIEVE_LEXER_H__