Fix build errors for j2me. #32

Fix build bug. #32
Remove libs dependency from PackageLib.
2019-03-09 17:38:32 +02:00 · 2019-03-09 15:49:56 +02:00 · 2019-01-13 19:23:44 +02:00 · 2019-01-03 18:09:00 +02:00 · 2018-12-29 19:49:43 +02:00 · 2018-12-24 22:34:49 +02:00
32 changed files with 787 additions and 634 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,8 +1,8 @@
-bin
-target
-build
-lib
-jit
+bin/
+target/
+build/
+lib/
+jit/
 *.ser
 *.gz
 *.jar
--- a/README.html
+++ b/README.html
@@ -1,22 +1,22 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
-<html>
+# This is a fork!
+<div style="border: 1px dotted red; margin: 1.em 0.5em; font-weight: bold; color: red;">
+This repository has been forked from the original CVS sources of Luaj.
+The commit history has been converted to make sure that the original work of
+James Roseborough and Ian Farmer is not lost.
+Unfortunately, I was not able to contact either James or Ian to hand over
+ownership of the Github organization/repo as I have originally intended to.
+The community however seems interested enough to continue work on the original
+sources and therefore I have decided to make sure that any useful pull requests
+that may add some value to the original code base shall be merged in from now
+on.<br>
+-- Benjamin P. Jung, Jan. 26th 2018
+</div>

-<head>
-<title>Getting Started with LuaJ</title>
-<link rel="stylesheet" type="text/css" href="http://www.lua.org/lua.css">
-<META HTTP-EQUIV="content-type" CONTENT="text/html; charset=iso-8859-1">
-</head>
+<h1>Getting Started with LuaJ</h1>

-<body>

-<hr>
-<h1>
-<a href="README.html"><img src="http://sourceforge.net/dbimage.php?id=196139" alt="" border="0"></a>
-
-Getting Started with LuaJ
-
-</h1>
-James Roseborough, Ian Farmer, Version 3.0.1
+<h1>Getting Started with LuaJ</h1>
+James Roseborough, Ian Farmer, Version 3.0.2
 <p>
 <small>
 Copyright &copy; 2009-2014 Luaj.org.
@@ -120,7 +120,7 @@ in comparison with the standard C distribution.
 	<td>16.794</td>
 	<td>11.274</td>
 	<td>Java</td>
-	<td>java -cp luaj-jse-3.0.1.jar;bcel-5.2.jar lua <b>-b</b> fannkuch.lua 10</td></tr>
+	<td>java -cp luaj-jse-3.0.2.jar;bcel-5.2.jar lua <b>-b</b> fannkuch.lua 10</td></tr>
 <tr valign="top">
 	<td></td>
 	<td></td>
@@ -130,7 +130,7 @@ in comparison with the standard C distribution.
 	<td>36.894</td>
 	<td>15.163</td>
 	<td></td>
-	<td>java -cp luaj-jse-3.0.1.jar lua -n fannkuch.lua 10</td></tr>
+	<td>java -cp luaj-jse-3.0.2.jar lua -n fannkuch.lua 10</td></tr>
 <tr valign="top">
 	<td>lua</td>
 	<td>5.1.4</td>
@@ -186,7 +186,7 @@ It is also faster than Java-lua implementations Jill, Kahlua, and Mochalua for a
 From the main distribution directory line type:

 <pre>
-	java -cp lib/luaj-jse-3.0.1.jar lua examples/lua/hello.lua
+	java -cp lib/luaj-jse-3.0.2.jar lua examples/lua/hello.lua
 </pre>

 <p>
@@ -198,7 +198,7 @@ You should see the following output:
 To see how luaj can be used to acccess most Java API's including swing, try:

 <pre>
-	java -cp lib/luaj-jse-3.0.1.jar lua examples/lua/swingapp.lua
+	java -cp lib/luaj-jse-3.0.2.jar lua examples/lua/swingapp.lua
 </pre>

 <p>
@@ -213,8 +213,8 @@ Links to sources:<pre>
 From the main distribution directory line type:

 <pre>
-	java -cp lib/luaj-jse-3.0.1.jar luac examples/lua/hello.lua
-	java -cp lib/luaj-jse-3.0.1.jar lua luac.out
+	java -cp lib/luaj-jse-3.0.2.jar luac examples/lua/hello.lua
+	java -cp lib/luaj-jse-3.0.2.jar lua luac.out
 </pre>

 <p>
@@ -228,8 +228,8 @@ Luaj can compile lua sources or binaries directly to java bytecode if the bcel l

 <pre>
 	ant bcel-lib
-	java -cp &quot;lib/luaj-jse-3.0.1.jar;lib/bcel-5.2.jar&quot; luajc -s examples/lua -d . hello.lua
-	java -cp &quot;lib/luaj-jse-3.0.1.jar;.&quot; lua -l hello
+	java -cp &quot;lib/luaj-jse-3.0.2.jar;lib/bcel-5.2.jar&quot; luajc -s examples/lua -d . hello.lua
+	java -cp &quot;lib/luaj-jse-3.0.2.jar;.&quot; lua -l hello
 </pre>

 <p>
@@ -240,7 +240,7 @@ but the compiled classes must be in the class path at runtime, unless runtime ji
 <p>
 Lua scripts can also be run directly in this mode without precompiling using the <em>lua</em> command with the <b><em>-b</em></b> option and providing the <em>bcel</em> library in the class path:
 <pre>
-	java -cp &quot;lib/luaj-jse-3.0.1.jar;lib/bcel-5.2.jar&quot; lua -b examples/lua/hello.lua
+	java -cp &quot;lib/luaj-jse-3.0.2.jar;lib/bcel-5.2.jar&quot; lua -b examples/lua/hello.lua
 </pre>


@@ -284,7 +284,7 @@ A simple example may be found in
 </pre>

 <p>
-You must include the library <b>lib/luaj-jse-3.0.1.jar</b> in your class path.
+You must include the library <b>lib/luaj-jse-3.0.2.jar</b> in your class path.

 <h2>Run a script in a MIDlet</h2>

@@ -311,7 +311,7 @@ A simple example may be found in
 </pre>

 <p>
-You must include the library <b>lib/luaj-jme-3.0.1.jar</b> in your midlet jar.
+You must include the library <b>lib/luaj-jme-3.0.2.jar</b> in your midlet jar.

 <p>
 An ant script to build and run the midlet is in
@@ -341,7 +341,7 @@ You can also look up the engine by language "lua" or mimetypes "text/lua" or "ap
 All standard aspects of script engines including compiled statements are supported.

 <p>
-You must include the library <b>lib/luaj-jse-3.0.1.jar</b> in your class path.
+You must include the library <b>lib/luaj-jse-3.0.2.jar</b> in your class path.

 <p>
 A working example may be found in
@@ -352,8 +352,8 @@ A working example may be found in
 To compile and run it using Java 1.6 or higher:

 <pre>
-	javac -cp lib/luaj-jse-3.0.1.jar examples/jse/ScriptEngineSample.java
-	java -cp &quot;lib/luaj-jse-3.0.1.jar;examples/jse&quot; ScriptEngineSample
+	javac -cp lib/luaj-jse-3.0.2.jar examples/jse/ScriptEngineSample.java
+	java -cp &quot;lib/luaj-jse-3.0.2.jar;examples/jse&quot; ScriptEngineSample
 </pre>

 <h2>Excluding the lua bytecode compiler</h2>
@@ -593,7 +593,7 @@ The following lua script will open a swing frame on Java SE:
 See a longer sample in <em>examples/lua/swingapp.lua</em> for details, including a simple animation loop, rendering graphics, mouse and key handling, and image loading. 
 Or try running it using: 
 <pre>
-	java -cp lib/luaj-jse-3.0.1.jar lua examples/lua/swingapp.lua
+	java -cp lib/luaj-jse-3.0.2.jar lua examples/lua/swingapp.lua
 </pre>

 <p>
@@ -842,7 +842,7 @@ For JSE projects, add this dependency for the luaj-jse jar:
   &lt;dependency&gt;
      &lt;groupId&gt;org.luaj&lt;/groupId&gt;
      &lt;artifactId&gt;luaj-jse&lt;/artifactId&gt;
-      &lt;version&gt;3.0.1&lt;/version&gt;
+      &lt;version&gt;3.0.2&lt;/version&gt;
   &lt;/dependency&gt;	
 </pre>
 while for JME projects, use the luaj-jme jar:
@@ -850,7 +850,7 @@ while for JME projects, use the luaj-jme jar:
   &lt;dependency&gt;
      &lt;groupId&gt;org.luaj&lt;/groupId&gt;
      &lt;artifactId&gt;luaj-jme&lt;/artifactId&gt;
-      &lt;version&gt;3.0.1&lt;/version&gt;
+      &lt;version&gt;3.0.2&lt;/version&gt;
   &lt;/dependency&gt;	
 </pre>

@@ -880,7 +880,7 @@ Unit test scripts can be found in these locations
 	test/lua/*.lua
 	test/lua/errors/*.lua
 	test/lua/perf/*.lua
-	test/lua/luaj3.0.1-tests.zip
+	test/lua/luaj3.0.2-tests.zip
 </pre>

 <h2>Code coverage</h2>
@@ -1017,6 +1017,11 @@ and at <a href="http://luaj.sourceforge.net/api/2.0/index.html">http://luaj.sour
 <li>Move online docs to <a href="http://luaj.org/luaj/3.0/api/index.html">http://luaj.org/luaj/3.0/api/</a></li>
 <li>Fix os.time() conversions for pm times.</li>

+<tr valign="top"><td>&nbsp;&nbsp;<b>3.0.2</b></td><td><ul>
+<li>Fix JsePlatform.luaMain() to provide an "arg" table in the chunk's environment.</li>
+<li>Let JsePlatform.luaMain() return values returned by the main chunk.</li>
+<li>Add synchronization to CoerceJavaToLua.COERCIONS map.</li>
+
 </ul></td></tr>
 </table></td></tr></table>

--- a/examples/jse/SampleApplet.java
+++ b/examples/jse/SampleApplet.java
@@ -11,13 +11,13 @@ import org.luaj.vm2.lib.Bit32Lib;
 import org.luaj.vm2.lib.CoroutineLib;
 import org.luaj.vm2.lib.PackageLib;
 import org.luaj.vm2.lib.ResourceFinder;
-import org.luaj.vm2.lib.StringLib;
 import org.luaj.vm2.lib.TableLib;
 import org.luaj.vm2.lib.jse.CoerceJavaToLua;
 import org.luaj.vm2.lib.jse.JseBaseLib;
 import org.luaj.vm2.lib.jse.JseIoLib;
 import org.luaj.vm2.lib.jse.JseMathLib;
 import org.luaj.vm2.lib.jse.JseOsLib;
+import org.luaj.vm2.lib.jse.JseStringLib;
 import org.luaj.vm2.lib.jse.LuajavaLib;

 /**
@@ -76,7 +76,7 @@ public class SampleApplet extends Applet implements ResourceFinder {
 		globals.load(new PackageLib());
 		globals.load(new Bit32Lib());
 		globals.load(new TableLib());
-		globals.load(new StringLib());
+		globals.load(new JseStringLib());
 		globals.load(new CoroutineLib());
 		globals.load(new JseMathLib());
 		globals.load(new JseIoLib());
--- a/examples/jse/SampleSandboxed.java
+++ b/examples/jse/SampleSandboxed.java
@@ -1,7 +1,21 @@
-import org.luaj.vm2.*;
+import org.luaj.vm2.Globals;
+import org.luaj.vm2.LoadState;
+import org.luaj.vm2.LuaBoolean;
+import org.luaj.vm2.LuaString;
+import org.luaj.vm2.LuaTable;
+import org.luaj.vm2.LuaThread;
+import org.luaj.vm2.LuaValue;
+import org.luaj.vm2.Varargs;
 import org.luaj.vm2.compiler.LuaC;
-import org.luaj.vm2.lib.*;
-import org.luaj.vm2.lib.jse.*;
+import org.luaj.vm2.lib.Bit32Lib;
+import org.luaj.vm2.lib.DebugLib;
+import org.luaj.vm2.lib.PackageLib;
+import org.luaj.vm2.lib.TableLib;
+import org.luaj.vm2.lib.TwoArgFunction;
+import org.luaj.vm2.lib.ZeroArgFunction;
+import org.luaj.vm2.lib.jse.JseBaseLib;
+import org.luaj.vm2.lib.jse.JseMathLib;
+import org.luaj.vm2.lib.jse.JseStringLib;

 /** Simple program that illustrates basic sand-boxing of client scripts
 * in a server environment.
@@ -29,7 +43,7 @@ public class SampleSandboxed {
 		server_globals = new Globals();
 		server_globals.load(new JseBaseLib());
 		server_globals.load(new PackageLib());
-		server_globals.load(new StringLib());
+		server_globals.load(new JseStringLib());

 		// To load scripts, we occasionally need a math library in addition to compiler support.
 		// To limit scripts using the debug library, they must be closures, so we only install LuaC.
@@ -82,7 +96,7 @@ public class SampleSandboxed {
 		user_globals.load(new PackageLib());
 		user_globals.load(new Bit32Lib());
 		user_globals.load(new TableLib());
-		user_globals.load(new StringLib());
+		user_globals.load(new JseStringLib());
 		user_globals.load(new JseMathLib());

 		// This library is dangerous as it gives unfettered access to the
--- a/src/core/org/luaj/vm2/LuaClosure.java
+++ b/src/core/org/luaj/vm2/LuaClosure.java
@@ -97,15 +97,20 @@ public class LuaClosure extends LuaFunction {
 	 */
 	public LuaClosure(Prototype p, LuaValue env) {
 		this.p = p;
+		this.initupvalue1(env);
+		globals = env instanceof Globals? (Globals) env: null;	
+	}
+	
+	public void initupvalue1(LuaValue env) {
 		if (p.upvalues == null || p.upvalues.length == 0)
 			this.upValues = NOUPVALUES;
 		else {
 			this.upValues = new UpValue[p.upvalues.length];
 			this.upValues[0] = new UpValue(new LuaValue[] {env}, 0);
 		}
-		globals = env instanceof Globals? (Globals) env: null;	
 	}

+	
 	public boolean isclosure() {
 		return true;
 	}
@@ -118,26 +123,24 @@ public class LuaClosure extends LuaFunction {
 		return this;
 	}
 	
-	public LuaValue getmetatable() { 
-		return s_metatable; 
-	}
-	
 	public String tojstring() {
 		return "function: " + p.toString();
 	}
 	
+	private LuaValue[] getNewStack() {
+		int max = p.maxstacksize;
+		LuaValue[] stack = new LuaValue[max];
+		System.arraycopy(NILS, 0, stack, 0, max);
+		return stack;
+	}
+	
 	public final LuaValue call() {
-		LuaValue[] stack = new LuaValue[p.maxstacksize];
-		for (int i = 0; i < p.numparams; ++i )
-			stack[i] = NIL;
+		LuaValue[] stack = getNewStack();
 		return execute(stack,NONE).arg1();
 	}

 	public final LuaValue call(LuaValue arg) {
-		LuaValue[] stack = new LuaValue[p.maxstacksize];
-		System.arraycopy(NILS, 0, stack, 0, p.maxstacksize);
-		for (int i = 1; i < p.numparams; ++i )
-			stack[i] = NIL;
+		LuaValue[] stack = getNewStack();
 		switch ( p.numparams ) {
 		default: stack[0]=arg; return execute(stack,NONE).arg1();
 		case 0: return execute(stack,arg).arg1();
@@ -145,9 +148,7 @@ public class LuaClosure extends LuaFunction {
 	}
 	
 	public final LuaValue call(LuaValue arg1, LuaValue arg2) {
-		LuaValue[] stack = new LuaValue[p.maxstacksize];
-		for (int i = 2; i < p.numparams; ++i )
-			stack[i] = NIL;
+		LuaValue[] stack = getNewStack();
 		switch ( p.numparams ) {
 		default: stack[0]=arg1; stack[1]=arg2; return execute(stack,NONE).arg1();
 		case 1: stack[0]=arg1; return execute(stack,arg2).arg1();
@@ -156,9 +157,7 @@ public class LuaClosure extends LuaFunction {
 	}

 	public final LuaValue call(LuaValue arg1, LuaValue arg2, LuaValue arg3) {
-		LuaValue[] stack = new LuaValue[p.maxstacksize];
-		for (int i = 3; i < p.numparams; ++i )
-			stack[i] = NIL;
+		LuaValue[] stack = getNewStack();
 		switch ( p.numparams ) {
 		default: stack[0]=arg1; stack[1]=arg2; stack[2]=arg3; return execute(stack,NONE).arg1();
 		case 2: stack[0]=arg1; stack[1]=arg2; return execute(stack,arg3).arg1();
@@ -172,7 +171,7 @@ public class LuaClosure extends LuaFunction {
 	}
 	
 	public final Varargs onInvoke(Varargs varargs) {
-		LuaValue[] stack = new LuaValue[p.maxstacksize];
+		LuaValue[] stack = getNewStack();
 		for ( int i=0; i<p.numparams; i++ )
 			stack[i] = varargs.arg(i+1);
 		return execute(stack,p.is_vararg!=0? varargs.subargs(p.numparams+1): NONE);
@@ -302,7 +301,7 @@ public class LuaClosure extends LuaFunction {
 						if ( c > b+1 ) {
 							Buffer sb = stack[c].buffer();
 							while ( --c>=b ) 
-								sb = stack[c].concat(sb);
+								sb.concatTo(stack[c]);
 							stack[a] = sb.value();
 						} else {
 							stack[a] = stack[c-1].concat(stack[c]);
--- a/src/core/org/luaj/vm2/LuaDouble.java
+++ b/src/core/org/luaj/vm2/LuaDouble.java
@@ -177,7 +177,14 @@ public class LuaDouble extends LuaNumber {
 	 * @see #dmod_d(double, double) 
 	 */
 	public static LuaValue dmod(double lhs, double rhs) {
-		return rhs!=0? valueOf( lhs-rhs*Math.floor(lhs/rhs) ): NAN;
+		if (rhs == 0 || lhs == Double.POSITIVE_INFINITY || lhs == Double.NEGATIVE_INFINITY) return NAN;
+		if (rhs == Double.POSITIVE_INFINITY) {
+			return lhs < 0 ? POSINF : valueOf(lhs);
+		}
+		if (rhs == Double.NEGATIVE_INFINITY) {
+			return lhs > 0 ? NEGINF : valueOf(lhs);
+		}
+		return valueOf( lhs-rhs*Math.floor(lhs/rhs) );
 	}

 	/** Take modulo for double numbers according to lua math, and return a double result.
@@ -188,7 +195,14 @@ public class LuaDouble extends LuaNumber {
 	 * @see #dmod(double, double)
 	 */
 	public static double dmod_d(double lhs, double rhs) {
-		return rhs!=0? lhs-rhs*Math.floor(lhs/rhs): Double.NaN;
+		if (rhs == 0 || lhs == Double.POSITIVE_INFINITY || lhs == Double.NEGATIVE_INFINITY) return Double.NaN;
+		if (rhs == Double.POSITIVE_INFINITY) {
+			return lhs < 0 ? Double.POSITIVE_INFINITY : lhs;
+		}
+		if (rhs == Double.NEGATIVE_INFINITY) {
+			return lhs > 0 ? Double.NEGATIVE_INFINITY : lhs;
+		}
+		return lhs-rhs*Math.floor(lhs/rhs);
 	}

 	// relational operators
--- a/src/core/org/luaj/vm2/LuaString.java
+++ b/src/core/org/luaj/vm2/LuaString.java
@@ -144,7 +144,7 @@ public class LuaString extends LuaValue {
 	/** Construct a new LuaString using a copy of the bytes array supplied */
 	private static LuaString valueFromCopy(byte[] bytes, int off, int len) {
 		final byte[] copy = new byte[len];
-		for (int i=0; i<len; ++i) copy[i] = bytes[off+i];
+		System.arraycopy(bytes, off, copy, 0, len);
 		return new LuaString(copy, 0, len);
 	}

@@ -391,23 +391,23 @@ public class LuaString extends LuaValue {
 	public short   toshort()       { return (short) toint(); }

 	public double optdouble(double defval) {
-		return checknumber().checkdouble();
+		return checkdouble();
 	}
 	
 	public int optint(int defval) {
-		return checknumber().checkint();
+		return checkint();
 	}
 	
 	public LuaInteger optinteger(LuaInteger defval) { 
-		return checknumber().checkinteger();
+		return checkinteger();
 	}
 	
 	public long optlong(long defval) {
-		return checknumber().checklong();
+		return checklong();
 	}
 	
 	public LuaNumber optnumber(LuaNumber defval) {
-		return checknumber().checknumber();
+		return checknumber();
 	}
 	
 	public LuaString optstring(LuaString defval) {
--- a/src/core/org/luaj/vm2/LuaTable.java
+++ b/src/core/org/luaj/vm2/LuaTable.java
@@ -266,8 +266,8 @@ public class LuaTable extends LuaValue implements Metatable {

 	/** caller must ensure key is not nil */
 	public void set( LuaValue key, LuaValue value ) {
-		if (!key.isvalidkey() && !metatag(NEWINDEX).isfunction())
-			typerror("table index");
+		if (key == null || !key.isvalidkey() && !metatag(NEWINDEX).isfunction())
+			throw new LuaError("value ('" + key + "') can not be used as a table index");
 		if ( m_metatable==null || ! rawget(key).isnil() ||  ! settable(this,key,value) )
 			rawset(key, value);
 	}
@@ -347,7 +347,12 @@ public class LuaTable extends LuaValue implements Metatable {
 	}

 	public int length() {
-		return m_metatable != null? len().toint(): rawlen(); 
+		if (m_metatable != null) {
+			LuaValue len = len();
+			if (!len.isint()) throw new LuaError("table length is not an integer: " + len);
+			return len.toint();
+		}
+		return rawlen();
 	}
 	
 	public LuaValue len()  { 
@@ -390,7 +395,7 @@ public class LuaTable extends LuaValue implements Metatable {
 					}
 				}
 				if ( hash.length == 0 )
-					error( "invalid key to 'next'" );
+					error( "invalid key to 'next' 1: " + key );
 				i = hashSlot( key );
 				boolean found = false;
 				for ( Slot slot = hash[i]; slot != null; slot = slot.rest() ) {
@@ -404,7 +409,7 @@ public class LuaTable extends LuaValue implements Metatable {
 					}
 				}
 				if ( !found ) {
-					error( "invalid key to 'next'" );
+					error( "invalid key to 'next' 2: " + key );
 				}
 				i += 1+array.length;
 			}
@@ -780,6 +785,7 @@ public class LuaTable extends LuaValue implements Metatable {
 	 * @param comparator {@link LuaValue} to be called to compare elements.
 	 */
 	public void sort(LuaValue comparator) {
+		if (len().tolong() >= (long)Integer.MAX_VALUE) throw new LuaError("array too big: " + len().tolong());
 		if (m_metatable != null && m_metatable.useWeakValues()) {
 			dropWeakArrayValues();
 		}
@@ -892,6 +898,11 @@ public class LuaTable extends LuaValue implements Metatable {

 	/** Unpack the elements from i to j inclusive */
 	public Varargs unpack(int i, int j) {
+		if (j < i) return NONE;
+		int count = j - i;
+		if (count < 0) throw new LuaError("too many results to unpack: greater " + Integer.MAX_VALUE); // integer overflow
+		int max = 0x00ffffff;
+		if (count >= max) throw new LuaError("too many results to unpack: " + count + " (max is " + max + ')');
 		int n = j + 1 - i;
 		switch (n) {
 		case 0: return NONE;
@@ -900,10 +911,14 @@ public class LuaTable extends LuaValue implements Metatable {
 		default:
 			if (n < 0)
 				return NONE;
+			try {
 				LuaValue[] v = new LuaValue[n];
 				while (--n >= 0)
 					v[n] = get(i+n);
 				return varargsOf(v);
+			} catch (OutOfMemoryError e) {
+				throw new LuaError("too many results to unpack [out of memory]: " + n);
+			}
 		}
 	}

@@ -1231,14 +1246,15 @@ public class LuaTable extends LuaValue implements Metatable {
 		}

 		public Entry set(LuaValue value) {
+			if (value.type() == TNUMBER) {
 				LuaValue n = value.tonumber();
 				if (!n.isnil()) {
 					this.value = n.todouble();
 					return this;
-			} else {
-				return new NormalEntry( this.key, value );
 				}
 			}
+			return new NormalEntry( this.key, value );
+		}

 		public int keyindex( int mask ) {
 			return hashSlot( key, mask );
--- a/src/core/org/luaj/vm2/LuaValue.java
+++ b/src/core/org/luaj/vm2/LuaValue.java
@@ -643,7 +643,7 @@ public class LuaValue extends Varargs {
 	 * @see #isnumber()
 	 * @see #TNUMBER
 	 */
-	public double      optdouble(double defval)            { argerror("double");    return 0;     }
+	public double      optdouble(double defval)            { argerror("number");    return 0;     }

 	/** Check that optional argument is a function and return as {@link LuaFunction}
 	 * <p>
@@ -855,7 +855,7 @@ public class LuaValue extends Varargs {
 	 * @see #optdouble(double)
 	 * @see #TNUMBER
 	 */
-	public double      checkdouble()           { argerror("double");    return 0; }
+	public double      checkdouble()           { argerror("number");    return 0; }
 	
 	/** Check that the value is a function , or throw {@link LuaError} if not 
 	 * <p>
@@ -2045,7 +2045,7 @@ public class LuaValue extends Varargs {
 	 * @see #eqmtcall(LuaValue, LuaValue, LuaValue, LuaValue)
 	 * @see #EQ
 	 */
-	public LuaValue   eq( LuaValue val )      { return this == val? TRUE: FALSE; }
+	public LuaValue   eq( LuaValue val )      { return eq_b(val)? TRUE: FALSE; }
 	
 	/** Equals: Perform equality comparison with another value 
 	 * including metatag processing using {@link #EQ}, 
@@ -3143,7 +3143,7 @@ public class LuaValue extends Varargs {
 	 * @return {@link LuaString} corresponding to the value if a string or number
 	 * @throws LuaError if not a string or number
 	 */
-	public LuaString strvalue()     { typerror("strValue"); return null; }
+	public LuaString strvalue()     { typerror("string or number"); return null; }

 	/** Return this value as a strong reference, or null if it was weak and is no longer referenced.
 	 * @return {@link LuaValue} referred to, or null if it was weak and is no longer referenced.
@@ -3298,7 +3298,7 @@ public class LuaValue extends Varargs {
 				if ((!res.isnil()) || (tm = t.metatag(INDEX)).isnil())
 					return res;
 			} else if ((tm = t.metatag(INDEX)).isnil())
-				t.indexerror();
+				t.indexerror(key.tojstring());
 			if (tm.isfunction())
 				return tm.call(t, key);
 			t = tm;
@@ -3326,7 +3326,7 @@ public class LuaValue extends Varargs {
 					return true;
 				}
 			} else if ((tm = t.metatag(NEWINDEX)).isnil())
-				t.typerror("index");
+				throw new LuaError("table expected for set index ('" + key + "') value, got " + t.typename());
 			if (tm.isfunction()) {
 				tm.call(t, key, value);
 				return true;
@@ -3389,8 +3389,8 @@ public class LuaValue extends Varargs {
 	/** Throw {@link LuaError} indicating index was attempted on illegal type 
 	 * @throws LuaError when called.  
 	 */
-    private void indexerror() {
-		error( "attempt to index ? (a "+typename()+" value)" );
+    private void indexerror(String key) {
+		error( "attempt to index ? (a "+typename()+" value) with key '" + key + "'" );
 	}
 	
 	/** Construct a {@link Varargs} around an array of {@link LuaValue}s.
--- a/src/core/org/luaj/vm2/Print.java
+++ b/src/core/org/luaj/vm2/Print.java
@@ -128,6 +128,10 @@ public class Print extends Lua {
 	}

 	static void printValue( PrintStream ps, LuaValue v ) {
+		if (v == null) {
+			ps.print("null");
+			return;
+		}
 		switch ( v.type() ) {
 		case LuaValue.TSTRING: printString( ps, (LuaString) v ); break;
 		default: ps.print( v.tojstring() );
@@ -136,7 +140,7 @@ public class Print extends Lua {
 	}
 	
 	static void printConstant(PrintStream ps, Prototype f, int i) {
-		printValue( ps, f.k[i] );
+		printValue( ps, i < f.k.length ? f.k[i] : LuaValue.valueOf("UNKNOWN_CONST_" + i) );
 	}

 	static void printUpvalue(PrintStream ps, Upvaldesc u) {
@@ -152,7 +156,7 @@ public class Print extends Lua {
 		int[] code = f.code;
 		int pc, n = code.length;
 		for (pc = 0; pc < n; pc++) {
-			printOpCode(f, pc);
+			pc = printOpCode(f, pc);
 			ps.println();
 		}
 	}
@@ -161,9 +165,10 @@ public class Print extends Lua {
 	 * Print an opcode in a prototype
 	 * @param f the {@link Prototype}
 	 * @param pc the program counter to look up and print
+	 * @return pc same as above or changed
 	 */
-	public static void printOpCode(Prototype f, int pc) {
-		printOpCode(ps,f,pc);
+	public static int printOpCode(Prototype f, int pc) {
+		return printOpCode(ps,f,pc);
 	}
 	
 	/** 
@@ -171,8 +176,9 @@ public class Print extends Lua {
 	 * @param ps the {@link PrintStream} to print to
 	 * @param f the {@link Prototype}
 	 * @param pc the program counter to look up and print
+	 * @return pc same as above or changed
 	 */
-	public static void printOpCode(PrintStream ps, Prototype f, int pc) {
+	public static int printOpCode(PrintStream ps, Prototype f, int pc) {
 		int[] code = f.code;
 		int i = code[pc];
 		int o = GET_OPCODE(i);
@@ -187,6 +193,9 @@ public class Print extends Lua {
 			ps.print("[" + line + "]  ");
 		else
 			ps.print("[-]  ");
+		if (o >= OPNAMES.length - 1) {
+			ps.print("UNKNOWN_OP_" + o + "  ");
+		} else {
 			ps.print(OPNAMES[o] + "  ");
 			switch (getOpMode(o)) {
 			case iABC:
@@ -218,11 +227,19 @@ public class Print extends Lua {
 			case OP_GETUPVAL:
 			case OP_SETUPVAL:
 				ps.print("  ; ");
+				if (b < f.upvalues.length) {
 					printUpvalue(ps, f.upvalues[b]);
+				} else {
+					ps.print("UNKNOWN_UPVALUE_" + b);
+				}	
 				break;
 			case OP_GETTABUP:
 				ps.print("  ; ");
+				if (b < f.upvalues.length) {
 					printUpvalue(ps, f.upvalues[b]);
+				} else {
+					ps.print("UNKNOWN_UPVALUE_" + b);
+				}
 				ps.print(" ");
 				if (ISK(c))
 					printConstant(ps, f, INDEXK(c));
@@ -231,7 +248,11 @@ public class Print extends Lua {
 				break;
 			case OP_SETTABUP:
 				ps.print("  ; ");
+				if (a < f.upvalues.length) {
 					printUpvalue(ps, f.upvalues[a]);
+				} else {
+					ps.print("UNKNOWN_UPVALUE_" + a);
+				}
 				ps.print(" ");
 				if (ISK(b))
 					printConstant(ps, f, INDEXK(b));
@@ -278,11 +299,15 @@ public class Print extends Lua {
 				ps.print("  ; to " + (sbx + pc + 2));
 				break;
 			case OP_CLOSURE:
+				if (bx < f.p.length) {
 					ps.print("  ; " + f.p[bx].getClass().getName());
+				} else {
+					ps.print("  ; UNKNOWN_PROTYPE_" + bx);
+				}
 				break;
 			case OP_SETLIST:
 				if (c == 0)
-				ps.print("  ; " + ((int) code[++pc]));
+					ps.print("  ; " + ((int) code[++pc]) + " (stored in the next OP)");
 				else
 					ps.print("  ; " + ((int) c));
 				break;
@@ -293,6 +318,8 @@ public class Print extends Lua {
 				break;
 			}
 		}
+		return pc;
+	}

 	private static int getline(Prototype f, int pc) {
 		return pc>0 && f.lineinfo!=null && pc<f.lineinfo.length? f.lineinfo[pc]: -1;
--- a/src/core/org/luaj/vm2/compiler/LuaC.java
+++ b/src/core/org/luaj/vm2/compiler/LuaC.java
@@ -117,7 +117,7 @@ public class LuaC extends Constants implements Globals.Compiler, Globals.Loader
 		protected CompileState() {}
 	
 		/** Parse the input */
-		private Prototype luaY_parser(InputStream z, String name) throws IOException{
+		Prototype luaY_parser(InputStream z, String name) throws IOException{
 			LexState lexstate = new LexState(this, z);
 			FuncState funcstate = new FuncState();
 			// lexstate.buff = buff;
--- a/src/core/org/luaj/vm2/lib/BaseLib.java
+++ b/src/core/org/luaj/vm2/lib/BaseLib.java
@@ -245,7 +245,7 @@ public class BaseLib extends TwoArgFunction implements ResourceFinder {
 		public Varargs invoke(Varargs args) {
 			LuaValue tostring = globals.get("tostring"); 
 			for ( int i=1, n=args.narg(); i<=n; i++ ) {
-				if ( i>1 ) globals.STDOUT.print( '\t' );
+				if ( i>1 ) globals.STDOUT.print( " \t" );
 				LuaString s = tostring.call( args.arg(i) ).strvalue();
 				globals.STDOUT.print(s.tojstring());
 			}
@@ -299,7 +299,8 @@ public class BaseLib extends TwoArgFunction implements ResourceFinder {
 		}
 		public LuaValue call(LuaValue table, LuaValue index, LuaValue value) {
 			LuaTable t = table.checktable();
-			t.rawset(index.checknotnil(), value);
+			if (!index.isvalidkey()) argerror(2, "value");
+			t.rawset(index, value);
 			return t;
 		}
 	}
--- a/src/core/org/luaj/vm2/lib/Bit32Lib.java
+++ b/src/core/org/luaj/vm2/lib/Bit32Lib.java
@@ -71,7 +71,7 @@ public class Bit32Lib extends TwoArgFunction {
 			"arshift", "lrotate", "lshift", "rrotate", "rshift"
 		});
 		env.set("bit32", t);
-		env.get("package").get("loaded").set("bit32", t);
+		if (!env.get("package").isnil()) env.get("package").get("loaded").set("bit32", t);
 		return t;
 	}

--- a/src/core/org/luaj/vm2/lib/CoroutineLib.java
+++ b/src/core/org/luaj/vm2/lib/CoroutineLib.java
@@ -82,7 +82,7 @@ public class CoroutineLib extends TwoArgFunction {
 		coroutine.set("yield", new yield());
 		coroutine.set("wrap", new wrap());
 		env.set("coroutine", coroutine);
-		env.get("package").get("loaded").set("coroutine", coroutine);
+		if (!env.get("package").isnil()) env.get("package").get("loaded").set("coroutine", coroutine);
 		return coroutine;
 	}

@@ -92,7 +92,7 @@ public class CoroutineLib extends TwoArgFunction {
 		}
 	}

-	final class resume extends VarArgFunction {
+	static final class resume extends VarArgFunction {
 		public Varargs invoke(Varargs args) {
 			final LuaThread t = args.checkthread(1);
 			return t.resume( args.subargs(2) );
@@ -127,7 +127,7 @@ public class CoroutineLib extends TwoArgFunction {
 		}
 	}

-	final class wrapper extends VarArgFunction {
+	static final class wrapper extends VarArgFunction {
 		final LuaThread luathread;
 		wrapper(LuaThread luathread) {
 			this.luathread = luathread;
--- a/src/core/org/luaj/vm2/lib/DebugLib.java
+++ b/src/core/org/luaj/vm2/lib/DebugLib.java
@@ -84,27 +84,27 @@ public class DebugLib extends TwoArgFunction {
 		try { TRACE = (null != System.getProperty("TRACE")); } catch (Exception e) {}
 	}
 	
-	private static final LuaString LUA             = valueOf("Lua");  
+	static final LuaString LUA             = valueOf("Lua");
 	private static final LuaString QMARK           = valueOf("?");
 	private static final LuaString CALL            = valueOf("call");
 	private static final LuaString LINE            = valueOf("line");
 	private static final LuaString COUNT           = valueOf("count");
 	private static final LuaString RETURN          = valueOf("return");
 	
-	private static final LuaString FUNC            = valueOf("func");  
-	private static final LuaString ISTAILCALL      = valueOf("istailcall");  
-	private static final LuaString ISVARARG        = valueOf("isvararg");  
-	private static final LuaString NUPS            = valueOf("nups");  
-	private static final LuaString NPARAMS         = valueOf("nparams");  
-	private static final LuaString NAME            = valueOf("name");  
-	private static final LuaString NAMEWHAT        = valueOf("namewhat");  
-	private static final LuaString WHAT            = valueOf("what");  
-	private static final LuaString SOURCE          = valueOf("source");  
-	private static final LuaString SHORT_SRC       = valueOf("short_src");  
-	private static final LuaString LINEDEFINED     = valueOf("linedefined");  
-	private static final LuaString LASTLINEDEFINED = valueOf("lastlinedefined");  
-	private static final LuaString CURRENTLINE     = valueOf("currentline");  
-	private static final LuaString ACTIVELINES     = valueOf("activelines");  
+	static final LuaString FUNC            = valueOf("func");
+	static final LuaString ISTAILCALL      = valueOf("istailcall");
+	static final LuaString ISVARARG        = valueOf("isvararg");
+	static final LuaString NUPS            = valueOf("nups");
+	static final LuaString NPARAMS         = valueOf("nparams");
+	static final LuaString NAME            = valueOf("name");
+	static final LuaString NAMEWHAT        = valueOf("namewhat");
+	static final LuaString WHAT            = valueOf("what");
+	static final LuaString SOURCE          = valueOf("source");
+	static final LuaString SHORT_SRC       = valueOf("short_src");
+	static final LuaString LINEDEFINED     = valueOf("linedefined");
+	static final LuaString LASTLINEDEFINED = valueOf("lastlinedefined");
+	static final LuaString CURRENTLINE     = valueOf("currentline");
+	static final LuaString ACTIVELINES     = valueOf("activelines");

 	Globals globals;
 	
@@ -135,7 +135,7 @@ public class DebugLib extends TwoArgFunction {
 		debug.set("upvalueid", new upvalueid());
 		debug.set("upvaluejoin", new upvaluejoin());
 		env.set("debug", debug);
-		env.get("package").get("loaded").set("debug", debug);
+		if (!env.get("package").isnil()) env.get("package").get("loaded").set("debug", debug);
 		return debug;
 	}

@@ -234,7 +234,7 @@ public class DebugLib extends TwoArgFunction {
 	}

 	//	debug.getmetatable (value)
-	final class getmetatable extends LibFunction {
+	static final class getmetatable extends LibFunction {
 		public LuaValue call(LuaValue v) {
 			LuaValue mt = v.getmetatable();
 			return mt != null? mt: NIL;
@@ -311,7 +311,7 @@ public class DebugLib extends TwoArgFunction {
 	}

 	//	debug.setmetatable (value, table)
-	final class setmetatable extends TwoArgFunction { 
+	static final class setmetatable extends TwoArgFunction {
 		public LuaValue call(LuaValue value, LuaValue table) {
 			LuaValue mt = table.opttable(null);
 			switch ( value.type() ) {
@@ -328,7 +328,7 @@ public class DebugLib extends TwoArgFunction {
 	}

 	//	debug.setupvalue (f, up, value)
-	final class setupvalue extends VarArgFunction { 
+	static final class setupvalue extends VarArgFunction {
 		public Varargs invoke(Varargs args) {
 			LuaValue func = args.checkfunction(1);
 			int up = args.checkint(2);
@@ -346,7 +346,7 @@ public class DebugLib extends TwoArgFunction {
 	}

 	//	debug.setuservalue (udata, value)
-	final class setuservalue extends VarArgFunction { 
+	static final class setuservalue extends VarArgFunction {
 		public Varargs invoke(Varargs args) {
 			Object o = args.checkuserdata(1);
 			LuaValue v = args.checkvalue(2);
@@ -370,7 +370,7 @@ public class DebugLib extends TwoArgFunction {
 	}
 	
 	//	debug.upvalueid (f, n)
-	final class upvalueid extends VarArgFunction { 
+	static final class upvalueid extends VarArgFunction {
 		public Varargs invoke(Varargs args) {
 			LuaValue func = args.checkfunction(1);
 			int up = args.checkint(2);
@@ -385,7 +385,7 @@ public class DebugLib extends TwoArgFunction {
 	}

 	//	debug.upvaluejoin (f1, n1, f2, n2)
-	final class upvaluejoin extends VarArgFunction { 
+	static final class upvaluejoin extends VarArgFunction {
 		public Varargs invoke(Varargs args) {
 			LuaClosure f1 = args.checkclosure(1);
 			int n1 = args.checkint(2);
@@ -565,7 +565,11 @@ public class DebugLib extends TwoArgFunction {
 					sb.append( ar.name );
 					sb.append( '\'' );
 				} else {
-					sb.append( "function <"+c.shortsource()+":"+c.linedefined()+">" );
+					sb.append( "function <" );
+					sb.append( c.shortsource() );
+					sb.append( ':' );
+					sb.append( c.linedefined() );
+					sb.append( '>' );
 				}
 			}
 			sb.append("\n\t[Java]: in ?");
@@ -673,16 +677,16 @@ public class DebugLib extends TwoArgFunction {
 		}
 		Varargs getLocal(int i) {
 			LuaString name = getlocalname(i);
-			if ( name != null )
-				return varargsOf( name, stack[i-1] );
+			if ( i >= 1 && i <= stack.length && stack[i-1] != null )
+				return varargsOf( name == null ? NIL : name, stack[i-1] );
 			else
 				return NIL;
 		}
 		Varargs setLocal(int i, LuaValue value) {
 			LuaString name = getlocalname(i);
-			if ( name != null ) {
+			if ( i >= 1 && i <= stack.length && stack[i-1] != null ) {
 				stack[i-1] = value;
-				return name;
+				return name == null ? NIL : name;
 			} else {
 				return NIL;
 			}
@@ -696,7 +700,7 @@ public class DebugLib extends TwoArgFunction {
 			if ( !f.isclosure() ) return f.tojstring();
 			return f.checkclosure().p.shortsource() + ":" + currentline();
 		}
-		private int linedefined() {
+		int linedefined() {
 			return f.isclosure()? f.checkclosure().p.linedefined: -1;
 		}
 		LuaString getlocalname(int index) {
@@ -867,6 +871,10 @@ public class DebugLib extends TwoArgFunction {
 	        if (reg == a) setreg = pc;  /* jumped code can change 'a' */
 	        break;
 	      }
+	      case Lua.OP_SETLIST: { // Lua.testAMode(Lua.OP_SETLIST) == false
+	    	if ( ((i>>14)&0x1ff) == 0 ) pc++; // if c == 0 then c stored in next op -> skip
+		break;
+	      }
 	      default:
 	        if (Lua.testAMode(op) && reg == a)  /* any instruction that set A */
 	          setreg = pc;
--- a/src/core/org/luaj/vm2/lib/IoLib.java
+++ b/src/core/org/luaj/vm2/lib/IoLib.java
@@ -256,7 +256,7 @@ public class IoLib extends TwoArgFunction {
 		
 		// return the table
 		env.set("io", t);
-		env.get("package").get("loaded").set("io", t);
+		if (!env.get("package").isnil()) env.get("package").get("loaded").set("io", t);
 		return t;
 	}

@@ -467,7 +467,7 @@ public class IoLib extends TwoArgFunction {
 		return LuaValue.TRUE;
 	}

-	private static Varargs errorresult(Exception ioe) {
+	static Varargs errorresult(Exception ioe) {
 		String s = ioe.getMessage();
 		return errorresult("io error: "+(s!=null? s: ioe.toString()));
 	}
@@ -544,7 +544,7 @@ public class IoLib extends TwoArgFunction {
 		}
 		boolean isreadmode = mode.startsWith("r");
 		boolean isappend = mode.startsWith("a");
-		boolean isupdate = mode.indexOf("+") > 0;
+		boolean isupdate = mode.indexOf('+') > 0;
 		boolean isbinary = mode.endsWith("b");
 		return openFile( filename, isreadmode, isappend, isupdate, isbinary );
 	}
--- a/src/core/org/luaj/vm2/lib/LibFunction.java
+++ b/src/core/org/luaj/vm2/lib/LibFunction.java
@@ -139,7 +139,7 @@ abstract public class LibFunction extends LuaFunction {
 	}
 	
 	public String tojstring() {
-		return name != null? name: super.tojstring();
+		return name != null ? "function: " + name : super.tojstring();
 	}
 	
 	/** 
--- a/src/core/org/luaj/vm2/lib/MathLib.java
+++ b/src/core/org/luaj/vm2/lib/MathLib.java
@@ -125,7 +125,7 @@ public class MathLib extends TwoArgFunction {
 		math.set("sqrt", new sqrt());
 		math.set("tan", new tan());
 		env.set("math", math);
-		env.get("package").get("loaded").set("math", math);
+		if (!env.get("package").isnil()) env.get("package").get("loaded").set("math", math);
 		return math;
 	}
 	
@@ -163,10 +163,12 @@ public class MathLib extends TwoArgFunction {
 		}
 	}
 	
-	static final class fmod extends BinaryOp {
-		protected double call(double x, double y) {
-			double q = x/y;
-			return x - y * (q>=0? Math.floor(q): Math.ceil(q));
+	static final class fmod extends TwoArgFunction {
+		public LuaValue call(LuaValue xv, LuaValue yv) {
+			if (xv.islong() && yv.islong()) {
+				return valueOf(xv.tolong() % yv.tolong());
+			}
+			return valueOf(xv.checkdouble() % yv.checkdouble());
 		}
 	}
 	static final class ldexp extends BinaryOp {
@@ -194,27 +196,36 @@ public class MathLib extends TwoArgFunction {

 	static class max extends VarArgFunction {
 		public Varargs invoke(Varargs args) {
-			double m = args.checkdouble(1);
-			for ( int i=2,n=args.narg(); i<=n; ++i )
-				m = Math.max(m,args.checkdouble(i));
-			return valueOf(m);
+			LuaValue m = args.checkvalue(1);
+			for ( int i=2,n=args.narg(); i<=n; ++i ) {
+				LuaValue v = args.checkvalue(i);
+				if (m.lt_b(v)) m = v;
+			}
+			return m;
 		}
 	}
 	
 	static class min extends VarArgFunction {
 		public Varargs invoke(Varargs args) {
-			double m = args.checkdouble(1);
-			for ( int i=2,n=args.narg(); i<=n; ++i )
-				m = Math.min(m,args.checkdouble(i));
-			return valueOf(m);
+			LuaValue m = args.checkvalue(1);
+			for ( int i=2,n=args.narg(); i<=n; ++i ) {
+				LuaValue v = args.checkvalue(i);
+				if (v.lt_b(m)) m = v;
+			}
+			return m;
 		}
 	}
 	
 	static class modf extends VarArgFunction {
 		public Varargs invoke(Varargs args) {
-			double x = args.checkdouble(1);
+			LuaValue n = args.arg1();
+			/* number is its own integer part, no fractional part */
+			if (n.islong()) return varargsOf(n, valueOf(0.0));
+			double x = n.checkdouble();
+			/* integer part (rounds toward zero) */
 			double intPart = ( x > 0 ) ? Math.floor( x ) : Math.ceil( x );
-			double fracPart = x - intPart;
+			/* fractional part (test needed for inf/-inf) */
+			double fracPart = x == intPart ? 0.0 : x - intPart;
 			return varargsOf( valueOf(intPart), valueOf(fracPart) );
 		}
 	}
--- a/src/core/org/luaj/vm2/lib/OsLib.java
+++ b/src/core/org/luaj/vm2/lib/OsLib.java
@@ -80,8 +80,8 @@ import org.luaj.vm2.Varargs;
 * @see <a href="http://www.lua.org/manual/5.1/manual.html#5.8">http://www.lua.org/manual/5.1/manual.html#5.8</a>
 */
 public class OsLib extends TwoArgFunction {
-	public static String TMP_PREFIX    = ".luaj";
-	public static String TMP_SUFFIX    = "tmp";
+	public static final String TMP_PREFIX    = ".luaj";
+	public static final String TMP_SUFFIX    = "tmp";

 	private static final int CLOCK     = 0;
 	private static final int DATE      = 1;
@@ -132,7 +132,7 @@ public class OsLib extends TwoArgFunction {
 		for (int i = 0; i < NAMES.length; ++i)
 			os.set(NAMES[i], new OsLibFunc(i, NAMES[i]));
 		env.set("os", os);
-		env.get("package").get("loaded").set("os", os);
+		if (!env.get("package").isnil()) env.get("package").get("loaded").set("os", os);
 		return os;
 	}

--- a/src/core/org/luaj/vm2/lib/PackageLib.java
+++ b/src/core/org/luaj/vm2/lib/PackageLib.java
@@ -81,23 +81,26 @@ public class PackageLib extends TwoArgFunction {

 	/** The default value to use for package.path.  This can be set with the system property
 	 * <code>"luaj.package.path"</code>, and is <code>"?.lua"</code> by default. */
-	public static String DEFAULT_LUA_PATH;
+	public static final String DEFAULT_LUA_PATH;
 	static {
+		String path = null;
 		try {
-			DEFAULT_LUA_PATH = System.getProperty("luaj.package.path");
+			path = System.getProperty("luaj.package.path");
 		} catch (Exception e) {
 			System.out.println(e.toString());
 		}
-		if (DEFAULT_LUA_PATH == null)
-			DEFAULT_LUA_PATH = "?.lua";
+		if (path == null) {
+			path = "?.lua";
+		}
+		DEFAULT_LUA_PATH = path;
 	}

-	private static final LuaString _LOADED      = valueOf("loaded");
+	static final LuaString _LOADED      = valueOf("loaded");
 	private static final LuaString _LOADLIB     = valueOf("loadlib");
-	private static final LuaString _PRELOAD     = valueOf("preload");
-	private static final LuaString _PATH        = valueOf("path");
-	private static final LuaString _SEARCHPATH  = valueOf("searchpath");
-	private static final LuaString _SEARCHERS   = valueOf("searchers");
+	static final LuaString _PRELOAD     = valueOf("preload");
+	static final LuaString _PATH        = valueOf("path");
+	static final LuaString _SEARCHPATH  = valueOf("searchpath");
+	static final LuaString _SEARCHERS   = valueOf("searchers");
 	
 	/** The globals that were used to load this library. */
 	Globals globals;
@@ -252,7 +255,6 @@ public class PackageLib extends TwoArgFunction {
 	public class lua_searcher extends VarArgFunction {
 		public Varargs invoke(Varargs args) {
 			LuaString name = args.checkstring(1);
-			InputStream is = null;
 					
 			// get package path
 			LuaValue path = package_.get(_PATH);
--- a/src/core/org/luaj/vm2/lib/StringLib.java
+++ b/src/core/org/luaj/vm2/lib/StringLib.java
@@ -24,8 +24,8 @@ package org.luaj.vm2.lib;
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;

-import org.luaj.vm2.LuaClosure;
 import org.luaj.vm2.Buffer;
+import org.luaj.vm2.LuaClosure;
 import org.luaj.vm2.LuaString;
 import org.luaj.vm2.LuaTable;
 import org.luaj.vm2.LuaValue;
@@ -49,7 +49,7 @@ import org.luaj.vm2.compiler.DumpState;
 * Globals globals = new Globals();
 * globals.load(new JseBaseLib());
 * globals.load(new PackageLib());
- * globals.load(new StringLib());
+ * globals.load(new JseStringLib());
 * System.out.println( globals.get("string").get("upper").call( LuaValue.valueOf("abcde") ) );
 * } </pre>
 * <p>
@@ -97,12 +97,12 @@ public class StringLib extends TwoArgFunction {
 		string.set("reverse", new reverse());
 		string.set("sub", new sub());
 		string.set("upper", new upper());
-		LuaTable mt = LuaValue.tableOf(
-				new LuaValue[] { INDEX, string });
+		
 		env.set("string", string);
-		env.get("package").get("loaded").set("string", string);
-		if (LuaString.s_metatable == null)
-			LuaString.s_metatable = mt;
+		if (!env.get("package").isnil()) env.get("package").get("loaded").set("string", string);
+		if (LuaString.s_metatable == null) {
+			LuaString.s_metatable = LuaValue.tableOf(new LuaValue[] { INDEX, string });
+		}
 		return string;
 	}
 	
@@ -154,7 +154,7 @@ public class StringLib extends TwoArgFunction {
 			byte[] bytes = new byte[n];
 			for ( int i=0, a=1; i<n; i++, a++ ) {
 				int c = args.checkint(a);
-				if (c<0 || c>=256) argerror(a, "invalid value");
+				if (c<0 || c>=256) argerror(a, "invalid value for string.char [0; 255]: " + c);
 				bytes[i] = (byte) c;
 			}
 			return LuaString.valueUsing( bytes );
@@ -162,20 +162,22 @@ public class StringLib extends TwoArgFunction {
 	}
 		
 	/**
-	 * string.dump (function)
+	 * string.dump (function[, stripDebug])
 	 * 
 	 * Returns a string containing a binary representation of the given function,
 	 * so that a later loadstring on this string returns a copy of the function.
 	 * function must be a Lua function without upvalues.
+	 * Boolean param stripDebug - true to strip debugging info, false otherwise.
+	 * The default value for stripDebug is true.
 	 * 
 	 * TODO: port dumping code as optional add-on
 	 */
-	static final class dump extends OneArgFunction {
-		public LuaValue call(LuaValue arg) {
-			LuaValue f = arg.checkfunction();
+	static final class dump extends VarArgFunction {
+		public Varargs invoke(Varargs args) {
+			LuaValue f = args.checkfunction(1);
 			ByteArrayOutputStream baos = new ByteArrayOutputStream();
 			try {
-				DumpState.dump( ((LuaClosure)f).p, baos, true );
+				DumpState.dump( ((LuaClosure)f).p, baos, args.optboolean(2, true) );
 				return LuaString.valueUsing(baos.toByteArray());
 			} catch (IOException e) {
 				return error( e.getMessage() );
@@ -228,7 +230,7 @@ public class StringLib extends TwoArgFunction {
 	 * This function does not accept string values containing embedded zeros,
 	 * except as arguments to the q option.
 	 */
-	static final class format extends VarArgFunction {
+	final class format extends VarArgFunction {
 		public Varargs invoke(Varargs args) {
 			LuaString fmt = args.checkstring( 1 );
 			final int n = fmt.length();
@@ -259,7 +261,7 @@ public class StringLib extends TwoArgFunction {
 								break;
 							case 'i':
 							case 'd':
-								fdsc.format( result, args.checkint( arg ) );
+								fdsc.format( result, args.checklong( arg ) );
 								break;
 							case 'o':
 							case 'u':
@@ -298,7 +300,7 @@ public class StringLib extends TwoArgFunction {
 		}
 	}
 	
-	private static void addquoted(Buffer buf, LuaString s) {
+	static void addquoted(Buffer buf, LuaString s) {
 		int c;
 		buf.append( (byte) '"' );
 		for ( int i = 0, n = s.length(); i < n; i++ ) {
@@ -328,7 +330,7 @@ public class StringLib extends TwoArgFunction {
 	
 	private static final String FLAGS = "-+ #0";
 	
-	static class FormatDesc {
+	class FormatDesc {
 		
 		private boolean leftAdjust;
 		private boolean zeroPad;
@@ -338,11 +340,13 @@ public class StringLib extends TwoArgFunction {
 		private static final int MAX_FLAGS = 5;
 		
 		private int width;
-		private int precision;
+		int precision;
 		
 		public final int conversion;
 		public final int length;
 		
+		public final String src;
+		
 		public FormatDesc(Varargs args, LuaString strfrmt, final int start) {
 			int p = start, n = strfrmt.length();
 			int c = 0;
@@ -390,6 +394,7 @@ public class StringLib extends TwoArgFunction {
 			zeroPad &= !leftAdjust; // '-' overrides '0'
 			conversion = c;
 			length = p - start;
+			src = strfrmt.substring(start - 1, p).tojstring();
 		}
 		
 		public void format(Buffer buf, byte c) {
@@ -465,8 +470,7 @@ public class StringLib extends TwoArgFunction {
 		}
 		
 		public void format(Buffer buf, double x) {
-			// TODO
-			buf.append( String.valueOf( x ) );
+			buf.append( StringLib.this.format(src, x) );
 		}
 		
 		public void format(Buffer buf, LuaString s) {
@@ -476,13 +480,17 @@ public class StringLib extends TwoArgFunction {
 			buf.append(s);
 		}
 		
-		public static final void pad(Buffer buf, char c, int n) {
+		public final void pad(Buffer buf, char c, int n) {
 			byte b = (byte)c;
 			while ( n-- > 0 )
 				buf.append(b);
 		}
 	}
 	
+	protected String format(String src, double x) {
+		return String.valueOf(x);
+	}
+	
 	/**
 	 * string.gmatch (s, pattern)
 	 * 
@@ -525,12 +533,13 @@ public class StringLib extends TwoArgFunction {
 			this.soffset = 0;
 		}
 		public Varargs invoke(Varargs args) {
-			for ( ; soffset<srclen; soffset++ ) {
+			for ( ; soffset<=srclen; soffset++ ) {
 				ms.reset();
 				int res = ms.match(soffset, 0);
 				if ( res >=0 ) {
 					int soff = soffset;
 					soffset = res;
+					if (soff == res) soffset++; /* empty match? go at least one position */
 					return ms.push_captures( true, soff, res );
 				}
 			}
@@ -764,7 +773,7 @@ public class StringLib extends TwoArgFunction {
 			
 			boolean anchor = false;
 			int poff = 0;
-			if ( pat.luaByte( 0 ) == '^' ) {
+			if ( pat.length() > 0 && pat.luaByte( 0 ) == '^' ) {
 				anchor = true;
 				poff = 1;
 			}
@@ -785,7 +794,7 @@ public class StringLib extends TwoArgFunction {
 		return NIL;
 	}
 	
-	private static int posrelat( int pos, int len ) {
+	static int posrelat( int pos, int len ) {
 		return ( pos >= 0 ) ? pos : len + pos + 1;
 	}
 	
@@ -807,7 +816,7 @@ public class StringLib extends TwoArgFunction {
 	private static final byte MASK_CONTROL		= 0x40;
 	private static final byte MASK_HEXDIGIT		= (byte)0x80;
 	
-	private static final byte[] CHAR_TABLE;
+	static final byte[] CHAR_TABLE;
 	
 	static {
 		CHAR_TABLE = new byte[256];
@@ -866,8 +875,14 @@ public class StringLib extends TwoArgFunction {
 					lbuf.append( (byte) b );
 				} else {
 					++i; // skip ESC
-					b = (byte) news.luaByte( i );
+					b = (byte)(i < l ? news.luaByte( i ) : 0);
 					if ( !Character.isDigit( (char) b ) ) {
+						if (b != L_ESC) error( "invalid use of '" + (char)L_ESC +
+							"' in replacement string: after '" + (char)L_ESC +
+							"' must be '0'-'9' or '" + (char)L_ESC +
+							"', but found " + (i < l ? "symbol '" + (char)b + "' with code " + b +
+							" at pos " + (i + 1) :
+							"end of string"));
 						lbuf.append( b );
 					} else if ( b == '0' ) {
 						lbuf.append( s.substring( soff, e ) );
@@ -961,19 +976,19 @@ public class StringLib extends TwoArgFunction {
 			switch ( p.luaByte( poffset++ ) ) {
 			case L_ESC:
 				if ( poffset == p.length() ) {
-					error( "malformed pattern (ends with %)" );
+					error( "malformed pattern (ends with '%')" );
 				}
 				return poffset + 1;
 				
 			case '[':
-				if ( p.luaByte( poffset ) == '^' ) poffset++;
+				if ( poffset != p.length() && p.luaByte( poffset ) == '^' ) poffset++;
 				do {
 					if ( poffset == p.length() ) {
-						error( "malformed pattern (missing ])" );
+						error( "malformed pattern (missing ']')" );
 					}
-					if ( p.luaByte( poffset++ ) == L_ESC && poffset != p.length() )
-						poffset++;
-				} while ( p.luaByte( poffset ) != ']' );
+					if ( p.luaByte( poffset++ ) == L_ESC && poffset < p.length() )
+						poffset++; /* skip escapes (e.g. '%]') */
+				} while ( poffset == p.length() || p.luaByte( poffset ) != ']' );
 				return poffset + 1;
 			default:
 				return poffset;
@@ -1062,13 +1077,14 @@ public class StringLib extends TwoArgFunction {
 						continue;
 					case 'f': {
 						poffset += 2;
-						if ( p.luaByte( poffset ) != '[' ) {
-							error("Missing [ after %f in pattern");
+						if ( poffset == p.length() || p.luaByte( poffset ) != '[' ) {
+							error("Missing '[' after '%f' in pattern");
 						}
 						int ep = classend( poffset );
-						int previous = ( soffset == 0 ) ? -1 : s.luaByte( soffset - 1 );
+						int previous = ( soffset == 0 ) ? '\0' : s.luaByte( soffset - 1 );
+						int next = ( soffset == s.length() ) ? '\0' : s.luaByte( soffset );
 						if ( matchbracketclass( previous, poffset, ep - 1 ) ||
-							 matchbracketclass( s.luaByte( soffset ), poffset, ep - 1 ) )
+							 !matchbracketclass( next, poffset, ep - 1 ) )
 							return -1;
 						poffset = ep;
 						continue;
--- a/src/core/org/luaj/vm2/lib/TableLib.java
+++ b/src/core/org/luaj/vm2/lib/TableLib.java
@@ -70,7 +70,7 @@ public class TableLib extends TwoArgFunction {
 		table.set("sort", new sort());
 		table.set("unpack", new unpack());
 		env.set("table", table);
-		env.get("package").get("loaded").set("table", table);
+		if (!env.get("package").isnil()) env.get("package").get("loaded").set("table", table);
 		return NIL;
 	}

--- a/src/jse/org/luaj/vm2/ast/Visitor.java
+++ b/src/jse/org/luaj/vm2/ast/Visitor.java
@@ -101,7 +101,7 @@ abstract public class Visitor {
 		visitExps(args.exps);
 	}
 	public void visit(TableField field) {
-		if ( field.name != null );
+		if ( field.name != null )
 			visit( field.name );
 		if ( field.index != null )
 			field.index.accept(this);
--- a/src/jse/org/luaj/vm2/lib/jse/CoerceJavaToLua.java
+++ b/src/jse/org/luaj/vm2/lib/jse/CoerceJavaToLua.java
@@ -21,6 +21,7 @@
 ******************************************************************************/
 package org.luaj.vm2.lib.jse;

+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;

@@ -133,7 +134,7 @@ public class CoerceJavaToLua {
 	}


-	static final Map COERCIONS = new HashMap();
+	static final Map COERCIONS = Collections.synchronizedMap(new HashMap());
 	
 	static {
 		Coercion boolCoercion = new BoolCoercion() ;
--- a/src/jse/org/luaj/vm2/lib/jse/JseBaseLib.java
+++ b/src/jse/org/luaj/vm2/lib/jse/JseBaseLib.java
@@ -21,6 +21,7 @@
 ******************************************************************************/
 package org.luaj.vm2.lib.jse;

+import java.io.BufferedInputStream;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
@@ -106,9 +107,10 @@ public class JseBaseLib extends org.luaj.vm2.lib.BaseLib {
 		if ( ! f.exists() )
 			return super.findResource(filename);
 		try {
-			return new FileInputStream(f);
+			return new BufferedInputStream(new FileInputStream(f));
 		} catch ( IOException ioe ) {
 			return null;
 		}
 	}
 }
+
--- a/src/jse/org/luaj/vm2/lib/jse/JseMathLib.java
+++ b/src/jse/org/luaj/vm2/lib/jse/JseMathLib.java
@@ -24,6 +24,7 @@ package org.luaj.vm2.lib.jse;
 import org.luaj.vm2.Globals;
 import org.luaj.vm2.LuaValue;
 import org.luaj.vm2.lib.LibFunction;
+import org.luaj.vm2.lib.TwoArgFunction;

 /** 
 * Subclass of {@link LibFunction} which implements the lua standard {@code math} 
@@ -76,8 +77,9 @@ public class JseMathLib extends org.luaj.vm2.lib.MathLib {
 		LuaValue math = env.get("math");
 		math.set("acos", new acos());
 		math.set("asin", new asin());
-		math.set("atan", new atan());
-		math.set("atan2", new atan2());
+		LuaValue atan =  new atan2();
+		math.set("atan", atan);
+		math.set("atan2", atan);
 		math.set("cosh", new cosh());
 		math.set("exp", new exp());
 		math.set("log", new log());
@@ -89,11 +91,21 @@ public class JseMathLib extends org.luaj.vm2.lib.MathLib {

 	static final class acos extends UnaryOp { protected double call(double d) { return Math.acos(d); } }
 	static final class asin extends UnaryOp { protected double call(double d) { return Math.asin(d); } }
-	static final class atan extends UnaryOp { protected double call(double d) { return Math.atan(d); } }
-	static final class atan2 extends BinaryOp { protected double call(double y, double x) { return Math.atan2(y, x); } }
+	static final class atan2 extends TwoArgFunction { 
+		public LuaValue call(LuaValue x, LuaValue y) {
+			return valueOf(Math.atan2(x.checkdouble(), y.optdouble(1)));
+		} 
+	}
 	static final class cosh extends UnaryOp { protected double call(double d) { return Math.cosh(d); } }
 	static final class exp extends UnaryOp { protected double call(double d) { return Math.exp(d); } }
-	static final class log extends UnaryOp { protected double call(double d) { return Math.log(d); } }
+	static final class log extends TwoArgFunction {
+		public LuaValue call(LuaValue x, LuaValue base) {
+			double nat = Math.log(x.checkdouble());
+			double b = base.optdouble(Math.E);
+			if (b != Math.E) nat /= Math.log(b);
+			return valueOf(nat);
+		}
+	}
 	static final class pow extends BinaryOp { protected double call(double x, double y) { return Math.pow(x, y); } }
 	static final class sinh extends UnaryOp { protected double call(double d) { return Math.sinh(d); } }
 	static final class tanh extends UnaryOp { protected double call(double d) { return Math.tanh(d); } }
@@ -105,3 +117,4 @@ public class JseMathLib extends org.luaj.vm2.lib.MathLib {
 	
 	
 }
+
--- a/src/jse/org/luaj/vm2/lib/jse/JseOsLib.java
+++ b/src/jse/org/luaj/vm2/lib/jse/JseOsLib.java
@@ -74,13 +74,13 @@ import org.luaj.vm2.lib.OsLib;
 public class JseOsLib extends org.luaj.vm2.lib.OsLib {
 	
 	/** return code indicating the execute() threw an I/O exception */
-	public static int EXEC_IOEXCEPTION =  1;
+	public static final int EXEC_IOEXCEPTION =  1;
 	
 	/** return code indicating the execute() was interrupted */
-	public static int EXEC_INTERRUPTED = -2;
+	public static final int EXEC_INTERRUPTED = -2;
 	
 	/** return code indicating the execute() threw an unknown exception */
-	public static int EXEC_ERROR       = -3;
+	public static final int EXEC_ERROR       = -3;
 	
 	/** public constructor */
 	public JseOsLib() {
@@ -120,7 +120,7 @@ public class JseOsLib extends org.luaj.vm2.lib.OsLib {
 		if ( ! f.exists() )
 			throw new IOException("No such file or directory");
 		if ( ! f.renameTo(new File(newname)) )
-			throw new IOException("Failed to delete");
+			throw new IOException("Failed to rename");
 	}

 	protected String tmpname() {
--- a/src/jse/org/luaj/vm2/lib/jse/JsePlatform.java
+++ b/src/jse/org/luaj/vm2/lib/jse/JsePlatform.java
@@ -23,8 +23,8 @@ package org.luaj.vm2.lib.jse;

 import org.luaj.vm2.Globals;
 import org.luaj.vm2.LoadState;
-import org.luaj.vm2.LuaThread;
 import org.luaj.vm2.LuaValue;
+import org.luaj.vm2.Varargs;
 import org.luaj.vm2.compiler.LuaC;
 import org.luaj.vm2.lib.Bit32Lib;
 import org.luaj.vm2.lib.CoroutineLib;
@@ -97,7 +97,7 @@ public class JsePlatform {
 		globals.load(new PackageLib());
 		globals.load(new Bit32Lib());
 		globals.load(new TableLib());
-		globals.load(new StringLib());
+		globals.load(new JseStringLib());
 		globals.load(new CoroutineLib());
 		globals.load(new JseMathLib());
 		globals.load(new JseIoLib());
@@ -124,10 +124,11 @@ public class JsePlatform {


 	/** Simple wrapper for invoking a lua function with command line arguments.
-	 * The supplied function is first given a new Globals object, 
+	 * The supplied function is first given a new Globals object as its environment
 	 * then the program is run with arguments.
+	 * @return {@link Varargs} containing any values returned by mainChunk.
 	 */
-	public static void luaMain(LuaValue mainChunk, String[] args) {
+	public static Varargs luaMain(LuaValue mainChunk, String[] args) {
 		Globals g = standardGlobals();
 		int n = args.length;
 		LuaValue[] vargs = new LuaValue[args.length];
@@ -137,6 +138,6 @@ public class JsePlatform {
 		arg.set("n", n);
 		g.set("arg", arg);
 		mainChunk.initupvalue1(g);
-		mainChunk.invoke(LuaValue.varargsOf(vargs));
+		return mainChunk.invoke(LuaValue.varargsOf(vargs));
 	}
 }
--- a/src/jse/org/luaj/vm2/lib/jse/LuajavaLib.java
+++ b/src/jse/org/luaj/vm2/lib/jse/LuajavaLib.java
@@ -112,7 +112,7 @@ public class LuajavaLib extends VarArgFunction {
 				LuaTable t = new LuaTable();
 				bind( t, this.getClass(), NAMES, BINDCLASS );
 				env.set("luajava", t);
-				env.get("package").get("loaded").set("luajava", t);
+				if (!env.get("package").isnil()) env.get("package").get("loaded").set("luajava", t);
 				return t;
 			}
 			case BINDCLASS: {
--- a/test/junit/org/luaj/vm2/AllTests.java
+++ b/test/junit/org/luaj/vm2/AllTests.java
@@ -32,6 +32,7 @@ import org.luaj.vm2.compiler.DumpLoadEndianIntTest;
 import org.luaj.vm2.compiler.LuaParserTests;
 import org.luaj.vm2.compiler.RegressionTests;
 import org.luaj.vm2.compiler.SimpleTests;
+import org.luaj.vm2.lib.jse.JsePlatformTest;
 import org.luaj.vm2.lib.jse.LuaJavaCoercionTest;
 import org.luaj.vm2.lib.jse.LuajavaAccessibleMembersTest;
 import org.luaj.vm2.lib.jse.LuajavaClassMembersTest;
@@ -85,6 +86,7 @@ public class AllTests {
 		
 		// library tests
 		TestSuite lib = new TestSuite("Library Tests");
+		lib.addTestSuite(JsePlatformTest.class);
 		lib.addTestSuite(LuajavaAccessibleMembersTest.class);
 		lib.addTestSuite(LuajavaClassMembersTest.class);
 		lib.addTestSuite(LuaJavaCoercionTest.class);
--- a/test/junit/org/luaj/vm2/lib/jse/JsePlatformTest.java
+++ b/test/junit/org/luaj/vm2/lib/jse/JsePlatformTest.java
@@ -0,0 +1,21 @@
+package org.luaj.vm2.lib.jse;
+
+import junit.framework.TestCase;
+
+import org.luaj.vm2.Globals;
+import org.luaj.vm2.LuaValue;
+import org.luaj.vm2.Varargs;
+
+
+public class JsePlatformTest extends TestCase {
+	public void testLuaMainPassesArguments() {
+		Globals globals = JsePlatform.standardGlobals();   
+		LuaValue chunk = globals.load("return #arg, arg.n, arg[2], arg[1]");
+		Varargs results = JsePlatform.luaMain(chunk, new String[] { "aaa", "bbb" });
+		assertEquals(results.narg(), 4);
+		assertEquals(results.arg(1), LuaValue.valueOf(2));
+		assertEquals(results.arg(2), LuaValue.valueOf(2));
+		assertEquals(results.arg(3), LuaValue.valueOf("bbb"));
+		assertEquals(results.arg(4), LuaValue.valueOf("aaa"));
+	}
+}
--- a/version.properties
+++ b/version.properties
@@ -1 +1 @@
-version: 3.0.1
+version: 3.0.2
Author	SHA1	Message	Date
Enyby	6694c375c9	Fix build errors for j2me. #32	2019-03-09 17:38:32 +02:00
Enyby	e70eb5edc2	Fix build bug. #32	2019-03-09 15:49:56 +02:00
Enyby	9688d3c5fc	Remove libs dependency from PackageLib.	2019-01-13 19:23:44 +02:00
Enyby	6f5af581e8	Fix string.gsub for invalid use '%' in replacement string Check code: ``` print(pcall(load('string.gsub("test", "%S", "A%")'))) print(pcall(load('string.gsub("test", "%S", "%A")'))) ```	2019-01-03 18:09:00 +02:00
Enyby	870aee2cae	Improved opt methods for numbers in LuaString	2018-12-29 19:49:43 +02:00
Enyby	c2ec9edf39	Deny use NaN as index in rawset.	2018-12-24 22:34:49 +02:00
Enyby	cfb3aaca61	Fix math.min and math.max. Now similar to native Lua and reference: `Returns the argument with the maximum value, according to the Lua operator <. (integer/float) `	2018-12-24 20:52:23 +02:00
Enyby	4105cebf1e	Fix math.fmod for int values.	2018-12-24 20:37:39 +02:00
Enyby	339f004eb7	More compat with lua tests.	2018-12-24 19:30:11 +02:00
Enyby	05a604645d	Fix modulo for edge cases. Reference code: ``` for i,lhs in ipairs({-math.huge, -10.0, 0.0, 10.0, math.huge}) do for j,rhs in ipairs({-math.huge, -10.0, 0.0, 10.0, math.huge}) do print(lhs, rhs, lhs % rhs) end end ```	2018-12-24 18:30:35 +02:00
Enyby	63ead7aac7	Fix string.format for long integers.	2018-12-24 11:45:06 +02:00
Enyby	c9ba2d4bb1	Fix math.modf for inf/-inf and int values.	2018-12-23 17:48:31 +02:00
Enyby	92cee0812d	Fix JSE math.log for second arg.	2018-12-23 17:06:34 +02:00
Enyby	e61e5694fa	Fix string.match for empty pattern	2018-12-16 06:38:23 +02:00
Enyby	47f8d6e6fc	Fix a frontier pattern match We're not in C anymore. LuaString are not null terminated. Also need quotes in error messages.	2018-12-11 23:44:39 +02:00
Enyby	14ac4bb7f9	Merge pull request #21 from lorenzos/patch-1 Check the type before reusing a NumberValueEntry	2018-11-02 23:11:36 +02:00
Lorenzo Stanco	b8aaaafb68	Check the type before reusing a NumberValueEntry Fixes #20	2018-10-31 15:57:02 +01:00
Enyby	88a557033b	Optimize get new stack for calls.	2018-09-20 20:14:02 +03:00
Enyby	24a8559ceb	Fix make LuaString from copy.	2018-09-17 16:32:09 +03:00
Enyby	028e03e4bc	Avoid synthetic methods	2018-09-16 18:49:26 +03:00
Enyby	5c1f7d2ab2	Make const final	2018-09-16 18:45:52 +03:00
Enyby	9db1254160	Avoid synthetic methods	2018-09-16 18:44:36 +03:00
Enyby	f899c709ff	Remove unused var.	2018-09-16 18:43:39 +03:00
Enyby	9c9e193cc4	Make consts final.	2018-09-16 18:40:06 +03:00
Enyby	e9db487d97	Improve convert function to string.	2018-09-16 18:38:49 +03:00
Enyby	c6fe5d3ed3	Avoid synthetic methods	2018-09-16 17:15:54 +03:00
Enyby	52ab872d08	Improve rawopenfile	2018-09-16 17:11:28 +03:00
Enyby	5d3041c6be	Improved get/setLocal.	2018-09-16 17:09:18 +03:00
Enyby	8d544729a8	Avoid synthetic methods.	2018-09-16 17:05:52 +03:00
Enyby	bd57dddef0	Imrove traceback build.	2018-09-16 17:03:35 +03:00
Enyby	d509e21cc6	Make static classes.	2018-09-16 17:02:24 +03:00
Enyby	5b67841232	Avoid synthetic methods	2018-09-16 16:58:51 +03:00
Enyby	bd4dac18ff	Make classes static to avoid leak parent instance.	2018-09-16 16:56:53 +03:00
Enyby	e02a82ef8d	Improve print.	2018-09-16 16:53:20 +03:00
Enyby	70a5086097	Make constants final.	2018-09-16 16:47:17 +03:00
Enyby	ad20f939b1	Fixed typo in JseOsLib	2018-09-16 16:46:13 +03:00
Enyby	e7058bcd6a	Improved math.atan/atan2.	2018-09-16 16:44:21 +03:00
Enyby	00c7e266ba	Used BufferedInputStream for JseBaseLib	2018-09-16 16:36:40 +03:00
Enyby	e75c5e2fca	Fix Visitor bug.	2018-09-16 16:33:42 +03:00
Enyby	ed46675a25	Improved concat values.	2018-09-16 16:08:53 +03:00
Enyby	8fbca25dce	Fixed table.unpack	2018-09-16 16:03:09 +03:00
Enyby	d0ed5b80e5	Improved error messages.	2018-09-16 15:52:14 +03:00
Enyby	9b77084109	Improved error messages.	2018-09-16 15:39:24 +03:00
Enyby	4f410fba6e	Fixed metatag processing for equality.	2018-09-16 15:30:41 +03:00
Enyby	f164c1cd28	Added optional param stripDebug to string.dump	2018-09-16 15:21:16 +03:00
Enyby	63ca0f94af	Removed synthetic accessors.	2018-09-16 15:13:06 +03:00
Enyby	5bd9827af1	Improve error message for string.char.	2018-09-16 15:09:36 +03:00
Enyby	0a5cccc50f	Fix issue with frontier patterns #3	2018-09-16 15:02:29 +03:00
Enyby	12aded74ca	Removed unused objects.	2018-09-16 10:01:39 +03:00
Enyby	48dd90f6d7	Removed unnecessary override.	2018-09-16 09:58:16 +03:00
Enyby	6333d9acf7	Merge pull request #17 from Enyby/patch-9 Fix format float numbers	2018-09-16 09:24:04 +03:00
Benjamin P. Jung	d61ed707ef	Merge pull request #18 from Enyby/patch-1 Rename README.html to README.md	2018-09-15 21:40:22 +02:00
Enyby	1e521d8900	Rename README.html to README.md	2018-09-14 15:46:14 +03:00
Benjamin P. Jung	bf8ef8d1a9	Merge pull request #15 from Enyby/patch-7 Fix gmatch for pass testsuites	2018-09-14 12:13:34 +02:00
Benjamin P. Jung	69498dbb7c	Merge pull request #16 from Enyby/patch-8 Fix build stack traceback in DebugLib Fixes #7	2018-09-14 12:12:42 +02:00
Benjamin P. Jung	4cc5f4270d	Merge pull request #14 from Enyby/patch-6 Fix for proper print OP_SETLIST additional opcode Closes #7	2018-09-14 12:12:10 +02:00
Enyby	75fa98d13f	Fix format float numbers Fix bug: https://sourceforge.net/p/luaj/bugs/53/ if System support String.format or fallback to old way.	2018-09-14 02:16:42 +03:00
Enyby	a627a868d5	Fix build stack traceback in DebugLib #7 If create huge table with a lot items (> 28000) then additional op code for store `c` out of range of op codes and this loop crash. This PR add case for OP_SETLIST for skip next op if in it stored `c`. OP_SETLIST not AMode OP `70cb74b4d6/src/core/org/luaj/vm2/Lua.java (L319)` `70cb74b4d6/src/core/org/luaj/vm2/Lua.java (L335)`	2018-09-14 02:13:21 +03:00
Enyby	f073919f64	Print any code	2018-09-14 02:09:43 +03:00
Enyby	27a1dcdd11	Fix gmatch for pass testsuites Test suites from lua.org: ``` -- tests for gmatch local a = 0 for i in string.gmatch('abcde', '()') do assert(i == a+1); a=i end assert(a==6) t = {n=0} for w in string.gmatch("first second word", "%w+") do t.n=t.n+1; t[t.n] = w end assert(t[1] == "first" and t[2] == "second" and t[3] == "word") t = {3, 6, 9} for i in string.gmatch ("xuxx uu ppar r", "()(.)%2") do assert(i == table.remove(t, 1)) end assert(#t == 0) t = {} for i,j in string.gmatch("13 14 10 = 11, 15= 16, 22=23", "(%d+)%s=%s(%d+)") do t[tonumber(i)] = tonumber(j) end a = 0 for k,v in pairs(t) do assert(k+1 == v+0); a=a+1 end assert(a == 3) -- tests for `%f' (`frontiers') assert(string.gsub("aaa aa a aaa a", "%f[%w]a", "x") == "xaa xa x xaa x") assert(string.gsub("[[]] [][] [[[[", "%f[[].", "x") == "x[]] x]x] x[[[") assert(string.gsub("01abc45de3", "%f[%d]", ".") == ".01abc.45de.3") assert(string.gsub("01abc45 de3x", "%f[%D]%w", ".") == "01.bc45 de3.") assert(string.gsub("function", "%f[\1-\255]%w", ".") == ".unction") assert(string.gsub("function", "%f[^\1-\255]", ".") == "function.") assert(string.find("a", "%f[a]") == 1) assert(string.find("a", "%f[^%z]") == 1) assert(string.find("a", "%f[^%l]") == 2) assert(string.find("aba", "%f[a%z]") == 3) assert(string.find("aba", "%f[%z]") == 4) assert(not string.find("aba", "%f[%l%z]")) assert(not string.find("aba", "%f[^%l%z]")) local i, e = string.find(" alo aalo allo", "%f[%S].-%f[%s].-%f[%S]") assert(i == 2 and e == 5) local k = string.match(" alo aalo allo", "%f[%S](.-%f[%s].-%f[%S])") assert(k == 'alo ') local a = {1, 5, 9, 14, 17,} for k in string.gmatch("alo alo th02 is 1hat", "()%f[%w%d]") do assert(table.remove(a, 1) == k) end assert(#a == 0) ``` Code from lua: https://www.lua.org/source/5.2/lstrlib.c.html ``` static int gmatch_aux (lua_State L) { MatchState ms; size_t ls, lp; const char s = lua_tolstring(L, lua_upvalueindex(1), &ls); const char p = lua_tolstring(L, lua_upvalueindex(2), &lp); const char src; ms.L = L; ms.matchdepth = MAXCCALLS; ms.src_init = s; ms.src_end = s+ls; ms.p_end = p + lp; for (src = s + (size_t)lua_tointeger(L, lua_upvalueindex(3)); src <= ms.src_end; src++) { const char e; ms.level = 0; lua_assert(ms.matchdepth == MAXCCALLS); if ((e = match(&ms, src, p)) != NULL) { lua_Integer newstart = e-s; if (e == src) newstart++; / empty match? go at least one position / lua_pushinteger(L, newstart); lua_replace(L, lua_upvalueindex(3)); return push_captures(&ms, src, e); } } return 0; / not found */ } ``` On empty match need increase string offset.	2018-09-14 02:04:56 +03:00
Enyby	b459724103	Fix for proper print OP_SETLIST additional opcode #7	2018-09-14 01:59:35 +03:00
Benjamin P. Jung	3d22990e3c	Migrate CVS project to Git * Delete .svnignore and move stuff to .gitignore * Add note to README to show that this is an inofficial fork as of now. * Change file suffix of README file from .html to .md for better Github integration and readability	2018-09-13 11:56:02 +02:00
James Roseborough	194b776317	Add synchronization to CoerceJavaToLua.COERCIONS map.	2018-09-13 11:53:24 +02:00
James Roseborough	828e4be019	Fix JsePlatform.luaMain() to provide an "arg" table in the chunk's environment.	2018-09-13 11:53:00 +02:00