diff --git a/app/build.xml b/app/build.xml
index eb1c313bf20..e0f67e05879 100644
--- a/app/build.xml
+++ b/app/build.xml
@@ -43,7 +43,7 @@
 	   excludes="**/tools/format/**" 
 	   encoding="UTF-8"
 	   includeAntRuntime="false"
-	   classpath="../core/core.jar; ${env.JAVA_HOME}/lib/tools.jar; lib/ant.jar; lib/ant-launcher.jar; lib/apple.jar; lib/ecj.jar; lib/jna.jar; lib/oro.jar; lib/RXTXcomm.jar" />
+	   classpath="../core/core.jar; ${env.JAVA_HOME}/lib/tools.jar; lib/ant.jar; lib/ant-launcher.jar; lib/apple.jar; lib/ecj.jar; lib/jna.jar; lib/RXTXcomm.jar" />
   </target>
   
   <target name="build" depends="compile" description="Build PDE">
diff --git a/app/lib/oro.jar b/app/lib/oro.jar
deleted file mode 100644
index 667e86cb7a8..00000000000
Binary files a/app/lib/oro.jar and /dev/null differ
diff --git a/app/src/processing/app/preproc/PdePreprocessor.java b/app/src/processing/app/preproc/PdePreprocessor.java
index 10b940536e6..2deaa15aa92 100644
--- a/app/src/processing/app/preproc/PdePreprocessor.java
+++ b/app/src/processing/app/preproc/PdePreprocessor.java
@@ -35,7 +35,7 @@ Processing version Copyright (c) 2004-05 Ben Fry and Casey Reas
 import java.io.*;
 import java.util.*;
 
-import com.oroinc.text.regex.*;
+import java.util.regex.*;
 
 
 /**
@@ -49,16 +49,17 @@ public class PdePreprocessor {
   // we always write one header: WProgram.h
   public int headerCount = 1;
   
-  List prototypes;
+  // the prototypes that are generated by the preprocessor
+  List<String> prototypes;
 
   // these ones have the .* at the end, since a class name might be at the end
   // instead of .* which would make trouble other classes using this can lop
   // off the . and anything after it to produce a package name consistently.
-  ArrayList<String> programImports;
+  List<String> programImports;
 
   // imports just from the code folder, treated differently
   // than the others, since the imports are auto-generated.
-  ArrayList<String> codeFolderImports;
+  List<String> codeFolderImports;
 
   String indent;
 
@@ -79,6 +80,14 @@ public PdePreprocessor() {
     indent = new String(indentChars);
   }
 
+  /**
+   * Writes out the head of the c++ code generated for a sketch. 
+   * Called from processing.app.Sketch.
+   * @param program the concatenated code from all tabs containing pde-files
+   * @param buildPath the path into which the processed pde-code is to be written
+   * @param name the name of the sketch 
+   * @param codeFolderPackages unused param (leftover from processing)
+   */
   public int writePrefix(String program, String buildPath,
                          String sketchName, String codeFolderPackages[]) throws FileNotFoundException {
     this.buildPath = buildPath;
@@ -93,7 +102,7 @@ public int writePrefix(String program, String buildPath,
     // an OutOfMemoryError or NullPointerException will happen.
     // again, not gonna bother tracking this down, but here's a hack.
     // http://dev.processing.org/bugs/show_bug.cgi?id=16
-    String scrubbed = Sketch.scrubComments(program);
+    Sketch.scrubComments(program);
     // If there are errors, an exception is thrown and this fxn exits.
 
     if (Preferences.getBoolean("preproc.substitute_unicode")) {
@@ -117,14 +126,7 @@ public int writePrefix(String program, String buildPath,
 //      }
 //    }
 
-    prototypes = new ArrayList();
-    
-    try {
-      prototypes = prototypes(program);
-    } catch (MalformedPatternException e) {
-      System.out.println("Internal error while pre-processing; " +
-        "not generating function prototypes.\n\n" + e);
-    }
+    prototypes = prototypes(program);
     
     // store # of prototypes so that line number reporting can be adjusted
     prototypeCount = prototypes.size();
@@ -193,7 +195,7 @@ public String write() throws java.lang.Exception {
   }
 
   // Write the pde program to the cpp file
-  protected void writeProgram(PrintStream out, String program, List prototypes) {
+  protected void writeProgram(PrintStream out, String program, List<String> prototypes) {
     int prototypeInsertionPoint = firstStatement(program);
   
     out.print(program.substring(0, prototypeInsertionPoint));
@@ -216,7 +218,7 @@ protected void writeProgram(PrintStream out, String program, List prototypes) {
   protected void writeFooter(PrintStream out) throws java.lang.Exception {}
 
 
-  public ArrayList<String> getExtraImports() {
+  public List<String> getExtraImports() {
     return programImports;
   }
 
@@ -229,31 +231,23 @@ public ArrayList<String> getExtraImports() {
    * or a pre-processor directive.
    */
   public int firstStatement(String in) {
-    PatternMatcherInput input = new PatternMatcherInput(in);
-    PatternCompiler compiler = new Perl5Compiler();
-    PatternMatcher matcher = new Perl5Matcher();
-    Pattern pattern = null;
+    // whitespace
+    String p = "\\s+";
     
-    try {
-      pattern = compiler.compile(
-        // XXX: doesn't properly handle special single-quoted characters
-        // whitespace
-        "\\s+" + "|" +
-        // multi-line comment
-        "(/\\*[^*]*(?:\\*(?!/)[^*]*)*\\*/)" + "|" +
-        // single-line comment
-        "(//.*?$)" + "|" +
-        // pre-processor directive
-        "(#(?:\\\\\\n|.)*)",
-        Perl5Compiler.MULTILINE_MASK);
-    } catch (MalformedPatternException e) {
-      throw new RuntimeException("Internal error in firstStatement()", e);
-    }
+    // multi-line and single-line comment
+    //p += "|" + "(//\\s*?$)|(/\\*\\s*?\\*/)";
+    p += "|(/\\*[^*]*(?:\\*(?!/)[^*]*)*\\*/)|(//.*?$)";
+
+    // pre-processor directive
+    p += "|(#(?:\\\\\\n|.)*)";
+    Pattern pattern = Pattern.compile(p, Pattern.MULTILINE);
       
+    Matcher matcher = pattern.matcher(in);
     int i = 0;
-    while (matcher.matchesPrefix(input, pattern)) {
-      i = matcher.getMatch().endOffset(0);
-      input.setCurrentOffset(i);
+    while (matcher.find()) {
+      if (matcher.start()!=i)
+        break;
+      i = matcher.end();
     }
     
     return i;
@@ -265,31 +259,24 @@ public int firstStatement(String in) {
    * @param in the String to strip
    * @return the stripped String
    */
-  public String strip(String in) throws MalformedPatternException {
-    PatternCompiler compiler = new Perl5Compiler();
-    PatternMatcher matcher = new Perl5Matcher();
-    Pattern pattern = compiler.compile(
-      // XXX: doesn't properly handle special single-quoted characters
-      // single-quoted character
-      "('.')" + "|" +
-      // double-quoted string
-      "(\"(?:[^\"\\\\]|\\\\.)*\")" + "|" +
-      // multi-line comment
-      "(/\\*[^*]*(?:\\*(?!/)[^*]*)*\\*/)" + "|" +
-      // single-line comment
-      "(//.*?$)" + "|" +
-      // pre-processor directive
-      "(^\\s*#.*?$)",
-      Perl5Compiler.MULTILINE_MASK);
-      
-    while (matcher.contains(in, pattern)) {
-      MatchResult result = matcher.getMatch();
-      // XXX: should preserve newlines in the result so that line numbers of
-      // the stripped string correspond to those in the original source.
-      in = in.substring(0, result.beginOffset(0)) + " " + in.substring(result.endOffset(0));
-    }
+  public String strip(String in) {
+    // XXX: doesn't properly handle special single-quoted characters
+    // single-quoted character
+    String p = "('.')";
+    
+    // double-quoted string
+    p += "|(\"(?:[^\"\\\\]|\\\\.)*\")";
     
-    return in;
+    // single and multi-line comment
+    //p += "|" + "(//\\s*?$)|(/\\*\\s*?\\*/)";
+    p += "|(//.*?$)|(/\\*[^*]*(?:\\*(?!/)[^*]*)*\\*/)";
+    
+    // pre-processor directive
+    p += "|" + "(^\\s*#.*?$)";
+
+    Pattern pattern = Pattern.compile(p, Pattern.MULTILINE);
+    Matcher matcher = pattern.matcher(in);
+    return matcher.replaceAll(" ");
   }
   
   /**
@@ -324,21 +311,17 @@ private String collapseBraces(String in) {
     return buffer.toString();
   }
   
-  public List prototypes(String in) throws MalformedPatternException {
+  public ArrayList<String> prototypes(String in) {
     in = collapseBraces(strip(in));
     
-    PatternMatcherInput input = new PatternMatcherInput(in);
-    PatternCompiler compiler = new Perl5Compiler();
-    PatternMatcher matcher = new Perl5Matcher();
     // XXX: doesn't handle ... varargs
     // XXX: doesn't handle function pointers
-    Pattern pattern = compiler.compile(
-      "[\\w\\[\\]\\*]+\\s+[\\[\\]\\*\\w\\s]+\\([,\\[\\]\\*\\w\\s]*\\)(?=\\s*\\{)");
-    List matches = new ArrayList();
+    Pattern pattern = Pattern.compile("[\\w\\[\\]\\*]+\\s+[&\\[\\]\\*\\w\\s]+\\([&,\\[\\]\\*\\w\\s]*\\)(?=\\s*\\{)");
     
-    while (matcher.contains(input, pattern)) {
-      matches.add(matcher.getMatch().group(0) + ";");
-    }
+    ArrayList<String> matches = new ArrayList<String>();
+    Matcher matcher = pattern.matcher(in);
+    while (matcher.find())
+      matches.add(matcher.group(0) + ";");
     
     return matches;
   }
diff --git a/build/build.xml b/build/build.xml
index 98d15985350..479cc7e1bf2 100644
--- a/build/build.xml
+++ b/build/build.xml
@@ -19,7 +19,6 @@
     <include name="app/pde.jar" />
     <include name="app/lib/ecj.jar" />
     <include name="app/lib/jna.jar" />
-    <include name="app/lib/oro.jar" />
     <include name="app/lib/RXTXcomm.jar" />
     <include name="app/lib/ant.jar" />
     <include name="app/lib/ant-launcher.jar" />
diff --git a/build/macosx/template.app/Contents/Info.plist b/build/macosx/template.app/Contents/Info.plist
index c48c547b511..19e0ff47e2e 100755
--- a/build/macosx/template.app/Contents/Info.plist
+++ b/build/macosx/template.app/Contents/Info.plist
@@ -72,7 +72,7 @@
       <!-- In 0149, removed /System/Library/Java from the CLASSPATH because
            it can cause problems if users have installed weird files there.
            http://dev.processing.org/bugs/show_bug.cgi?id=1045 -->
-      <string>$JAVAROOT/pde.jar:$JAVAROOT/core.jar:$JAVAROOT/antlr.jar:$JAVAROOT/ecj.jar:$JAVAROOT/registry.jar:$JAVAROOT/quaqua.jar:$JAVAROOT/oro.jar:$JAVAROOT/RXTXcomm.jar</string>
+      <string>$JAVAROOT/pde.jar:$JAVAROOT/core.jar:$JAVAROOT/antlr.jar:$JAVAROOT/ecj.jar:$JAVAROOT/registry.jar:$JAVAROOT/quaqua.jar:$JAVAROOT/RXTXcomm.jar</string>
 
       <key>JVMArchs</key>  
       <array>  
diff --git a/build/windows/launcher/config.xml b/build/windows/launcher/config.xml
index 877e390a1e7..ba29d3a0673 100755
--- a/build/windows/launcher/config.xml
+++ b/build/windows/launcher/config.xml
@@ -19,7 +19,6 @@
     <cp>lib/core.jar</cp>
     <cp>lib/jna.jar</cp>
     <cp>lib/ecj.jar</cp>
-    <cp>lib/oro.jar</cp>
     <cp>lib/RXTXcomm.jar</cp>
   </classPath>
   <jre>
diff --git a/todo.txt b/todo.txt
index cc6ec46fbfa..014d099d08d 100644
--- a/todo.txt
+++ b/todo.txt
@@ -105,7 +105,6 @@ Sketch.java
 PreProcessor.java
  - split write() into writeHeader() and write() as in Processing?
  - add getExtraImports() function instead of having Sketch grab them directly.
- - don't use oro.jar
 
 Base.java
  - add keywords from libraries to the syntax coloring

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