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/*
* Anarres C Preprocessor
* Copyright (C) 2007 Shevek
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.anarres.cpp;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.PushbackReader;
import java.io.Reader;
import java.io.StringReader;
import java.util.Arrays;
import java.util.List;
import java.util.Iterator;
/* pp */ class FixedTokenSource extends Source {
private static final Token EOF =
new Token(Token.EOF, "<ts-eof>");
private List<Token> tokens;
private int idx;
/* pp */ FixedTokenSource(Token... tokens) {
this.tokens = Arrays.asList(tokens);
this.idx = 0;
}
/* pp */ FixedTokenSource(List<Token> tokens) {
this.tokens = tokens;
this.idx = 0;
}
public Token token()
throws IOException,
LexerException {
if (idx >= tokens.size())
return EOF;
return tokens.get(idx++);
}
public String toString() {
StringBuilder buf = new StringBuilder();
buf.append("constant token stream " + tokens);
Source parent = getParent();
if (parent != null)
buf.append(" in ").append(String.valueOf(parent));
return buf.toString();
}
}
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