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Diffstat (limited to 'src/net/sf/antcontrib/cpptasks/parser/AbstractParserState.java')
-rw-r--r-- | src/net/sf/antcontrib/cpptasks/parser/AbstractParserState.java | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/net/sf/antcontrib/cpptasks/parser/AbstractParserState.java b/src/net/sf/antcontrib/cpptasks/parser/AbstractParserState.java new file mode 100644 index 0000000..b3e3307 --- /dev/null +++ b/src/net/sf/antcontrib/cpptasks/parser/AbstractParserState.java @@ -0,0 +1,41 @@ +/* + * + * Copyright 2002-2004 The Ant-Contrib project + * + * Licensed 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 net.sf.antcontrib.cpptasks.parser; +/** + * An base class for objects that represent the state of an AbstractParser. + * + * @author CurtArnold + * @see AbstractParser + */ +public abstract class AbstractParserState { + private AbstractParser parser; + protected AbstractParserState(AbstractParser parser) { + if (parser == null) { + throw new NullPointerException("parser"); + } + this.parser = parser; + } + /** + * Consume a character + * + * @return new state, may be null to ignore the rest of the line + */ + public abstract AbstractParserState consume(char ch); + protected AbstractParser getParser() { + return parser; + } +} |