BorlandCfgParser.java

/*
 * #%L
 * Native ARchive plugin for Maven
 * %%
 * Copyright (C) 2002 - 2014 NAR Maven Plugin developers.
 * %%
 * 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.
 * #L%
 */
package com.github.maven_nar.cpptasks.borland;

import java.io.IOException;
import java.io.Reader;
import java.util.Vector;

import com.github.maven_nar.cpptasks.parser.AbstractParser;
import com.github.maven_nar.cpptasks.parser.AbstractParserState;
import com.github.maven_nar.cpptasks.parser.LetterState;
import com.github.maven_nar.cpptasks.parser.WhitespaceOrLetterState;

/**
 * A parser that paths from a borland cfg file
 *
 * @author Curt Arnold
 */
public final class BorlandCfgParser extends AbstractParser {
  private final AbstractParserState newLineState;
  private final Vector<String> path = new Vector<>();

  /**
     *
     *
     */
  public BorlandCfgParser(final char switchChar) {
    //
    // a quoted path (-I"some path")
    // doesn't end till a close quote and will be abandoned
    // if a new line is encountered first
    //
    final AbstractParserState quote = new CfgFilenameState(this, new char[] {
      '"'
    });
    //
    // an unquoted path (-Ic:\borland\include)
    // ends at the first space or new line
    final AbstractParserState unquote = new CfgFilenameState(this, new char[] {
        ' ', '\n', '\r'
    });
    final AbstractParserState quoteBranch = new QuoteBranchState(this, quote, unquote);
    final AbstractParserState toNextSwitch = new ConsumeToSpaceOrNewLine(this);
    final AbstractParserState switchState = new LetterState(this, switchChar, quoteBranch, toNextSwitch);
    this.newLineState = new WhitespaceOrLetterState(this, '-', switchState);
  }

  @Override
  public void addFilename(final String include) {
    this.path.addElement(include);
  }

  @Override
  public AbstractParserState getNewLineState() {
    return this.newLineState;
  }

  public String[] parsePath(final Reader reader) throws IOException {
    this.path.setSize(0);
    super.parse(reader);
    final String[] retval = new String[this.path.size()];
    this.path.copyInto(retval);
    return retval;
  }
}