878ddf1fc3
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
68 lines
2.3 KiB
Java
68 lines
2.3 KiB
Java
/*
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*
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* Copyright 2001-2004 The Ant-Contrib project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.sf.antcontrib.cpptasks.parser;
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import java.io.IOException;
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import java.io.Reader;
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/**
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* An abstract base class for simple parsers
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*
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* @author Curt Arnold
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*/
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public abstract class AbstractParser {
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/**
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*
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*
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*/
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protected AbstractParser() {
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}
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protected abstract void addFilename(String filename);
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public abstract AbstractParserState getNewLineState();
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protected void parse(Reader reader) throws IOException {
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char[] buf = new char[4096];
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AbstractParserState newLineState = getNewLineState();
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AbstractParserState state = newLineState;
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int charsRead = -1;
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do {
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charsRead = reader.read(buf, 0, buf.length);
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if (state == null) {
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for (int i = 0; i < charsRead; i++) {
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if (buf[i] == '\n') {
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state = newLineState;
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break;
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}
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}
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}
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if (state != null) {
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for (int i = 0; i < charsRead; i++) {
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state = state.consume(buf[i]);
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//
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// didn't match a production, skip to a new line
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//
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if (state == null) {
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for (; i < charsRead; i++) {
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if (buf[i] == '\n') {
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state = newLineState;
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break;
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}
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}
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}
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}
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}
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} while (charsRead >= 0);
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}
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}
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