[Rubyeclipse-commit] SF.net SVN: rubyeclipse: [3044] trunk/org.rubypeople.rdt.core/src/org/ rubypeople/rdt/internal/formatter/ASTBasedCodeFormatter.java

[<caw...@us...>]

Revision: 3044
          http://rubyeclipse.svn.sourceforge.net/rubyeclipse/?rev=3044&view=rev
Author:   cawilliams
Date:     2007-08-22 09:39:58 -0700 (Wed, 22 Aug 2007)

Log Message:
-----------
start work on an AST based code formatter...

Added Paths:
-----------
    trunk/org.rubypeople.rdt.core/src/org/rubypeople/rdt/internal/formatter/ASTBasedCodeFormatter.java

Added: trunk/org.rubypeople.rdt.core/src/org/rubypeople/rdt/internal/formatter/ASTBasedCodeFormatter.java
===================================================================
--- trunk/org.rubypeople.rdt.core/src/org/rubypeople/rdt/internal/formatter/ASTBasedCodeFormatter.java	                        (rev 0)
+++ trunk/org.rubypeople.rdt.core/src/org/rubypeople/rdt/internal/formatter/ASTBasedCodeFormatter.java	2007-08-22 16:39:58 UTC (rev 3044)
@@ -0,0 +1,37 @@
+package org.rubypeople.rdt.internal.formatter;
+
+import java.io.StringWriter;
+
+import org.eclipse.text.edits.ReplaceEdit;
+import org.eclipse.text.edits.TextEdit;
+import org.jruby.ast.Node;
+import org.jruby.ast.visitor.rewriter.ReWriteVisitor;
+import org.jruby.ast.visitor.rewriter.ReWriterFactory;
+import org.jruby.ast.visitor.rewriter.utils.ReWriterContext;
+import org.rubypeople.rdt.core.formatter.CodeFormatter;
+import org.rubypeople.rdt.core.formatter.EditableFormatHelper;
+import org.rubypeople.rdt.internal.core.parser.RubyParser;
+
+public class ASTBasedCodeFormatter extends CodeFormatter {
+
+	@Override
+	public TextEdit format(int kind, String source, int offset, int length,
+			int indentationLevel, String lineSeparator) {
+		StringWriter writer = new StringWriter();
+		EditableFormatHelper helper = new EditableFormatHelper();
+		helper.setLineDelimeter(lineSeparator);
+		helper.setSpacesBeforeAndAfterAssignments(true);
+		helper.setAlwaysParanthesizeMethodDefs(true);
+		source = source.substring(offset, length);
+		ReWriterContext context = new ReWriterContext(writer, source, helper);
+		ReWriterFactory factory = new ReWriterFactory(context);
+		ReWriteVisitor visitor = factory.createReWriteVisitor();
+		RubyParser parser = new RubyParser();
+		Node root = parser.parse(source);
+		root.accept(visitor);
+		writer.append(lineSeparator);
+		String result = writer.getBuffer().toString();
+		return new ReplaceEdit(offset, length, result);
+	}
+
+}


Property changes on: trunk/org.rubypeople.rdt.core/src/org/rubypeople/rdt/internal/formatter/ASTBasedCodeFormatter.java
___________________________________________________________________
Name: svn:mime-type
   + text/plain


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