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authorShevek <[email protected]>2013-12-27 05:49:13 -0800
committerShevek <[email protected]>2013-12-27 05:49:13 -0800
commitbdc6c852f418c3e042aa41469d84544e5f60a526 (patch)
tree7866346f0fa48ad46a6a427d016dd4b83451dbbe /src/java/org/anarres/cpp/Source.java
parent39264fd6d2a6646e49f83b5b2b3512c1663a1c9b (diff)
Version bump to 1.4.0-SNAPSHOT.
Rewrite build system to use gradle. Clean up source for the new generation.
Diffstat (limited to 'src/java/org/anarres/cpp/Source.java')
-rw-r--r--src/java/org/anarres/cpp/Source.java293
1 files changed, 0 insertions, 293 deletions
diff --git a/src/java/org/anarres/cpp/Source.java b/src/java/org/anarres/cpp/Source.java
deleted file mode 100644
index 5f50a86..0000000
--- a/src/java/org/anarres/cpp/Source.java
+++ /dev/null
@@ -1,293 +0,0 @@
-/*
- * Anarres C Preprocessor
- * Copyright (c) 2007-2008, Shevek
- *
- * 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 org.anarres.cpp;
-
-import java.io.BufferedReader;
-import java.io.Closeable;
-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.Iterator;
-import java.util.List;
-import java.util.Set;
-
-import static org.anarres.cpp.Token.*;
-
-/**
- * An input to the Preprocessor.
- *
- * Inputs may come from Files, Strings or other sources. The
- * preprocessor maintains a stack of Sources. Operations such as
- * file inclusion or token pasting will push a new source onto
- * the Preprocessor stack. Sources pop from the stack when they
- * are exhausted; this may be transparent or explicit.
- *
- * BUG: Error messages are not handled properly.
- */
-public abstract class Source implements Iterable<Token>, Closeable {
- private Source parent;
- private boolean autopop;
- private PreprocessorListener listener;
- private boolean active;
- private boolean werror;
-
- /* LineNumberReader */
-
-/*
- // We can't do this, since we would lose the LexerException
- private class Itr implements Iterator {
- private Token next = null;
- private void advance() {
- try {
- if (next != null)
- next = token();
- }
- catch (IOException e) {
- throw new UnsupportedOperationException(
- "Failed to advance token iterator: " +
- e.getMessage()
- );
- }
- }
- public boolean hasNext() {
- return next.getType() != EOF;
- }
- public Token next() {
- advance();
- Token t = next;
- next = null;
- return t;
- }
- public void remove() {
- throw new UnsupportedOperationException(
- "Cannot remove tokens from a Source."
- );
- }
- }
-*/
-
- public Source() {
- this.parent = null;
- this.autopop = false;
- this.listener = null;
- this.active = true;
- this.werror = false;
- }
-
- /**
- * Sets the parent source of this source.
- *
- * Sources form a singly linked list.
- */
- /* pp */ void setParent(Source parent, boolean autopop) {
- this.parent = parent;
- this.autopop = autopop;
- }
-
- /**
- * Returns the parent source of this source.
- *
- * Sources form a singly linked list.
- */
- /* pp */ final Source getParent() {
- return parent;
- }
-
- // @OverrideMustInvoke
- /* pp */ void init(Preprocessor pp) {
- setListener(pp.getListener());
- this.werror = pp.getWarnings().contains(Warning.ERROR);
- }
-
- /**
- * Sets the listener for this Source.
- *
- * Normally this is set by the Preprocessor when a Source is
- * used, but if you are using a Source as a standalone object,
- * you may wish to call this.
- */
- public void setListener(PreprocessorListener pl) {
- this.listener = pl;
- }
-
- /**
- * Returns the File currently being lexed.
- *
- * If this Source is not a {@link FileLexerSource}, then
- * it will ask the parent Source, and so forth recursively.
- * If no Source on the stack is a FileLexerSource, returns null.
- */
- /* pp */ String getPath() {
- Source parent = getParent();
- if (parent != null)
- return parent.getPath();
- return null;
- }
-
- /**
- * Returns the human-readable name of the current Source.
- */
- /* pp */ String getName() {
- Source parent = getParent();
- if (parent != null)
- return parent.getName();
- return null;
- }
-
- /**
- * Returns the current line number within this Source.
- */
- public int getLine() {
- Source parent = getParent();
- if (parent == null)
- return 0;
- return parent.getLine();
- }
-
- /**
- * Returns the current column number within this Source.
- */
- public int getColumn() {
- Source parent = getParent();
- if (parent == null)
- return 0;
- return parent.getColumn();
- }
-
- /**
- * Returns true if this Source is expanding the given macro.
- *
- * This is used to prevent macro recursion.
- */
- /* pp */ boolean isExpanding(Macro m) {
- Source parent = getParent();
- if (parent != null)
- return parent.isExpanding(m);
- return false;
- }
-
- /**
- * Returns true if this Source should be transparently popped
- * from the input stack.
- *
- * Examples of such sources are macro expansions.
- */
- /* pp */ boolean isAutopop() {
- return autopop;
- }
-
- /**
- * Returns true if this source has line numbers.
- */
- /* pp */ boolean isNumbered() {
- return false;
- }
-
- /* This is an incredibly lazy way of disabling warnings when
- * the source is not active. */
- /* pp */ void setActive(boolean b) {
- this.active = b;
- }
-
- /* pp */ boolean isActive() {
- return active;
- }
-
- /**
- * Returns the next Token parsed from this input stream.
- *
- * @see Token
- */
- public abstract Token token()
- throws IOException,
- LexerException;
-
- /**
- * Returns a token iterator for this Source.
- */
- public Iterator<Token> iterator() {
- return new SourceIterator(this);
- }
-
- /**
- * Skips tokens until the end of line.
- *
- * @param white true if only whitespace is permitted on the
- * remainder of the line.
- * @return the NL token.
- */
- public Token skipline(boolean white)
- throws IOException,
- LexerException {
- for (;;) {
- Token tok = token();
- switch (tok.getType()) {
- case EOF:
- /* There ought to be a newline before EOF.
- * At least, in any skipline context. */
- /* XXX Are we sure about this? */
- warning(tok.getLine(), tok.getColumn(),
- "No newline before end of file");
- return new Token(NL,
- tok.getLine(), tok.getColumn(),
- "\n");
- // return tok;
- case NL:
- /* This may contain one or more newlines. */
- return tok;
- case CCOMMENT:
- case CPPCOMMENT:
- case WHITESPACE:
- break;
- default:
- /* XXX Check white, if required. */
- if (white)
- warning(tok.getLine(), tok.getColumn(),
- "Unexpected nonwhite token");
- break;
- }
- }
- }
-
- protected void error(int line, int column, String msg)
- throws LexerException {
- if (listener != null)
- listener.handleError(this, line, column, msg);
- else
- throw new LexerException("Error at " + line + ":" + column + ": " + msg);
- }
-
- protected void warning(int line, int column, String msg)
- throws LexerException {
- if (werror)
- error(line, column, msg);
- else if (listener != null)
- listener.handleWarning(this, line, column, msg);
- else
- throw new LexerException("Warning at " + line + ":" + column + ": " + msg);
- }
-
- public void close()
- throws IOException {
- }
-
-}