source: contrib/MailArchiver/sources/vendor/mime4j/apache-mime4j-0.7-SNAPSHOT-20110327.010440-17/dom/src/main/javacc/org/apache/james/mime4j/field/mimeversion/MimeVersionParser.jj @ 6785

/****************************************************************
 * Licensed to the Apache Software Foundation (ASF) under one   *
 * or more contributor license agreements.  See the NOTICE file *
 * distributed with this work for additional information        *
 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
 * "License"); you may not use this file except in compliance   *
 * with the License.  You may obtain a copy of the License at   *
 *                                                              *
 *   http://www.apache.org/licenses/LICENSE-2.0                 *
 *                                                              *
 * Unless required by applicable law or agreed to in writing,   *
 * software distributed under the License is distributed on an  *
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
 * KIND, either express or implied.  See the License for the    *
 * specific language governing permissions and limitations      *
 * under the License.                                           *
 ****************************************************************/

options {
  static=false;
  JDK_VERSION = "1.5";
  OUTPUT_DIRECTORY = "../../../../../../../../../target/generated-sources/javacc";
}

PARSER_BEGIN(MimeVersionParser)
/****************************************************************
 * Licensed to the Apache Software Foundation (ASF) under one   *
 * or more contributor license agreements.  See the NOTICE file *
 * distributed with this work for additional information        *
 * regarding copyright ownership.  The ASF licenses this file   *
 * to you under the Apache License, Version 2.0 (the            *
 * "License"); you may not use this file except in compliance   *
 * with the License.  You may obtain a copy of the License at   *
 *                                                              *
 *   http://www.apache.org/licenses/LICENSE-2.0                 *
 *                                                              *
 * Unless required by applicable law or agreed to in writing,   *
 * software distributed under the License is distributed on an  *
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY       *
 * KIND, either express or implied.  See the License for the    *
 * specific language governing permissions and limitations      *
 * under the License.                                           *
 ****************************************************************/
package org.apache.james.mime4j.field.mimeversion.parser;

public class MimeVersionParser {
        public static final int INITIAL_VERSION_VALUE = -1;
        private int major=INITIAL_VERSION_VALUE;
        private int minor=INITIAL_VERSION_VALUE;
        
        public int getMinorVersion() {
                return minor;
        }
        
        public int getMajorVersion() {
                return major;
        }
}
PARSER_END(MimeVersionParser)


void parseLine() :
{}
{
        parse() ["\r"] "\n"
}

void parseAll() :
{}
{
        parse() <EOF>
}

void parse() :
{
        Token major;
        Token minor;
}
{
        major=<DIGITS> <DOT> minor=<DIGITS>
        {
                try {
                        this.major = Integer.parseInt(major.image);
                        this.minor = Integer.parseInt(minor.image);
                } catch (NumberFormatException e) {
                        throw new ParseException(e.getMessage());
                }
        }
}

SPECIAL_TOKEN :
{
        < WS: ( [" ", "\t", "\r", "\n"] )+ >
}

TOKEN_MGR_DECLS :
{
        // Keeps track of how many levels of comment nesting
        // we've encountered.  This is only used when the 2nd
        // level is reached, for example ((this)), not (this).
        // This is because the outermost level must be treated
        // specially anyway, because the outermost ")" has a
        // different token type than inner ")" instances.
        int commentNest;
}


MORE :
{
        // starts a comment
        "(" : INCOMMENT
}

<INCOMMENT>
SKIP :
{
        // ends a comment
        < COMMENT: ")" > : DEFAULT
        // if this is ever changed to not be a SKIP, need
        // to make sure matchedToken.token = token.toString()
        // is called.
}

<INCOMMENT>
MORE :
{
        < <QUOTEDPAIR>> { image.deleteCharAt(image.length() - 2); }
|       "(" { commentNest = 1; } : NESTED_COMMENT
|       < <ANY>>
}

<NESTED_COMMENT>
MORE :
{
        < <QUOTEDPAIR>> { image.deleteCharAt(image.length() - 2); }
|       "(" { ++commentNest; }
|       ")" { --commentNest; if (commentNest == 0) SwitchTo(INCOMMENT); }
|       < <ANY>>
}
// QUOTED STRINGS

MORE :
{
        "\"" { image.deleteCharAt(image.length() - 1); } : INQUOTEDSTRING
}

<INQUOTEDSTRING>
MORE :
{
        < <QUOTEDPAIR>> { image.deleteCharAt(image.length() - 2); }
|       < (~["\"", "\\"])+ >
}

<INQUOTEDSTRING>
TOKEN :
{
        < QUOTEDSTRING: "\"" > { matchedToken.image = image.substring(0, image.length() - 1); } : DEFAULT
}

TOKEN :
{
        < DIGITS: ( ["0"-"9"] )+ >
}

TOKEN :
{
        < DOT: "." >
}

<*>
TOKEN :
{
        < #QUOTEDPAIR: "\\" <ANY> >
|       < #ANY: ~[] >
}