start on objc

4 files changed, 71 insertions, 7 deletions

diff --git a/src/java/org/anarres/cpp/Feature.java b/src/java/org/anarres/cpp/Feature.java
index 935a94b..649f135 100644
--- a/src/java/org/anarres/cpp/Feature.java
+++ b/src/java/org/anarres/cpp/Feature.java
@@ -32,5 +32,8 @@ public enum Feature {
 	/** Preserves comments in the lexed output. */
 	KEEPCOMMENTS,
 	VERBOSE,
-	DEBUG
+	DEBUG,
+
+	/** Supports lexing of objective-C. */
+	OBJCSYNTAX
 }
diff --git a/src/java/org/anarres/cpp/Macro.java b/src/java/org/anarres/cpp/Macro.java
index c357493..b62810b 100644
--- a/src/java/org/anarres/cpp/Macro.java
+++ b/src/java/org/anarres/cpp/Macro.java
@@ -29,6 +29,7 @@ import java.util.List;
  * extra tokens {@link Token#M_ARG} and {@link Token#M_STRING}.
  */
 public class Macro {
+	private Source			source;
 	private String			name;
 	/* It's an explicit decision to keep these around here. We don't
 	 * need to; the argument token type is M_ARG and the value
@@ -38,13 +39,35 @@ public class Macro {
 	private boolean			variadic;
 	private List<Token>		tokens;
 
-	public Macro(String name) {
+	public Macro(Source source, String name) {
+		this.source = source;
 		this.name = name;
 		this.args = null;
 		this.variadic = false;
 		this.tokens = new ArrayList<Token>();
 	}
 
+	public Macro(String name) {
+		this(null, name);
+	}
+
+	/**
+	 * Sets the Source from which this macro was parsed.
+	 */
+	public void setSource(Source s) {
+		this.source = s;
+	}
+
+	/**
+	 * Returns the Source from which this macro was parsed.
+	 *
+	 * This method may return null if the macro was not parsed
+	 * from a regular file.
+	 */
+	public Source getSource() {
+		return source;
+	}
+
 	/**
 	 * Returns the name of this macro.
 	 */
diff --git a/src/java/org/anarres/cpp/Preprocessor.java b/src/java/org/anarres/cpp/Preprocessor.java
index 195a822..2f3e593 100644
--- a/src/java/org/anarres/cpp/Preprocessor.java
+++ b/src/java/org/anarres/cpp/Preprocessor.java
@@ -74,8 +74,24 @@ is what the flags mean:
 */
 
 public class Preprocessor implements Closeable {
-	private static final Macro		__LINE__ = new Macro("__LINE__");
-	private static final Macro		__FILE__ = new Macro("__FILE__");
+	private static final Source		INTERNAL = new Source() {
+		@Override
+		public Token token()
+							throws IOException,
+									LexerException {
+			throw new LexerException("Cannot read from " + getName());
+		}
+		@Override
+		public String getPath() {
+			return "<internal-data>";
+		}
+		@Override
+		public String getName() {
+			return "internal data";
+		}
+	};
+	private static final Macro		__LINE__ = new Macro(INTERNAL, "__LINE__");
+	private static final Macro		__FILE__ = new Macro(INTERNAL, "__FILE__");
 
 	private List<Source>			inputs;
 
@@ -87,6 +103,7 @@ public class Preprocessor implements Closeable {
 	/* Support junk to make it work like cpp */
 	private List<String>			quoteincludepath;	/* -iquote */
 	private List<String>			sysincludepath;		/* -I */
+	private List<String>			frameworkspath;
 	private Set<Feature>			features;
 	private Set<Warning>			warnings;
 	private VirtualFileSystem		filesystem;
@@ -383,10 +400,28 @@ public class Preprocessor implements Closeable {
 	}
 
 	/**
+	 * Sets the Objective-C frameworks path used by this Preprocessor.
+	 */
+	/* Note for future: Create an IncludeHandler? */
+	public void setFrameworksPath(List<String> path) {
+		this.frameworkspath = path;
+	}
+
+	/**
+	 * Returns the Objective-C frameworks path used by this
+	 * Preprocessor.
+	 *
+	 * This list may be freely modified by user code.
+	 */
+	public List<String> getFrameworksPath() {
+		return frameworkspath;
+	}
+
+	/**
 	 * Returns the Map of Macros parsed during the run of this
 	 * Preprocessor.
 	 */
-	protected Map<String,Macro> getMacros() {
+	public Map<String,Macro> getMacros() {
 		return macros;
 	}
 
@@ -712,7 +747,7 @@ public class Preprocessor implements Closeable {
 		}
 		else if (m == __FILE__) {
 			StringBuilder	buf = new StringBuilder("\"");
-			String			name = source.getName();
+			String			name = getSource().getName();
 			if (name == null)
 				name = "<no file>";
 			for (int i = 0; i < name.length(); i++) {
@@ -799,7 +834,7 @@ public class Preprocessor implements Closeable {
 			return source_skipline(false);
 		}
 
-		Macro			m = new Macro(name);
+		Macro			m = new Macro(getSource(), name);
 		List<String>	args;
 
 		tok = source_token();
diff --git a/src/java/org/anarres/cpp/Source.java b/src/java/org/anarres/cpp/Source.java
index d69a5c2..49277c7 100644
--- a/src/java/org/anarres/cpp/Source.java
+++ b/src/java/org/anarres/cpp/Source.java
@@ -143,6 +143,9 @@ public abstract class Source implements Iterable<Token>, Closeable {
 		return null;
 	}
 
+	/**
+	 * Returns the human-readable name of the current Source.
+	 */
 	/* pp */ String getName() {
 		Source	parent = getParent();
 		if (parent != null)