diff options
author | Shevek <[email protected]> | 2008-03-21 23:05:04 +0000 |
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committer | Shevek <[email protected]> | 2008-03-21 23:05:04 +0000 |
commit | 5ff55648127c8a8e1b9829775045af986e37647c (patch) | |
tree | b28209b1efe12824fbdcabd4ee9073e93ca30636 /src/java/org/anarres/cpp/FixedTokenSource.java | |
parent | fca34200881fcaf7b84b4210f7a5f40c8925c4d1 (diff) |
move stuff into trunk
Diffstat (limited to 'src/java/org/anarres/cpp/FixedTokenSource.java')
-rw-r--r-- | src/java/org/anarres/cpp/FixedTokenSource.java | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/java/org/anarres/cpp/FixedTokenSource.java b/src/java/org/anarres/cpp/FixedTokenSource.java new file mode 100644 index 0000000..d123f89 --- /dev/null +++ b/src/java/org/anarres/cpp/FixedTokenSource.java @@ -0,0 +1,67 @@ +/* + * 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(); + } +} |