diff --git a/Foundation/include/Poco/NumberFormatter.h b/Foundation/include/Poco/NumberFormatter.h
index 2dfd2103c..9e459bf38 100644
--- a/Foundation/include/Poco/NumberFormatter.h
+++ b/Foundation/include/Poco/NumberFormatter.h
@@ -18,14 +18,14 @@
 // execute, and transmit the Software, and to prepare derivative works of the
 // Software, and to permit third-parties to whom the Software is furnished to
 // do so, all subject to the following:
-// 
+//
 // The copyright notices in the Software and this entire statement, including
 // the above license grant, this restriction and the following disclaimer,
 // must be included in all copies of the Software, in whole or in part, and
 // all derivative works of the Software, unless such copies or derivative
 // works are solely in the form of machine-executable object code generated by
 // a source language processor.
-// 
+//
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
@@ -60,6 +60,13 @@ class Foundation_API NumberFormatter
 	/// formatting.
 {
 public:
+	enum BoolFormat
+	{
+	    FMT_TRUE_FALSE,
+	    FMT_YES_NO,
+	    FMT_ON_OFF
+	};
+
 	static std::string format(int value);
 		/// Formats an integer value in decimal notation.
 
@@ -69,7 +76,7 @@ public:
 		/// the specified width.
 
 	static std::string format0(int value, int width);
-		/// Formats an integer value in decimal notation, 
+		/// Formats an integer value in decimal notation,
 		/// right justified and zero-padded in a field
 		/// having at least the specified width.
 
@@ -92,8 +99,8 @@ public:
 		/// specified width.
 
 	static std::string format0(unsigned int value, int width);
-		/// Formats an unsigned int value in decimal notation, 
-		/// right justified and zero-padded in a field having at 
+		/// Formats an unsigned int value in decimal notation,
+		/// right justified and zero-padded in a field having at
 		/// least the specified width.
 
 	static std::string formatHex(unsigned value);
@@ -109,11 +116,11 @@ public:
 
 	static std::string format(long value, int width);
 		/// Formats a long value in decimal notation,
-		/// right justified in a field having at least the 
+		/// right justified in a field having at least the
 		/// specified width.
 
 	static std::string format0(long value, int width);
-		/// Formats a long value in decimal notation, 
+		/// Formats a long value in decimal notation,
 		/// right justified and zero-padded in a field
 		/// having at least the specified width.
 
@@ -123,7 +130,7 @@ public:
 
 	static std::string formatHex(long value, int width);
 		/// Formats an unsigned long value in hexadecimal notation,
-		/// right justified and zero-padded in a field having at least the 
+		/// right justified and zero-padded in a field having at least the
 		/// specified width.
 		/// The value is treated as unsigned.
 
@@ -132,11 +139,11 @@ public:
 
 	static std::string format(unsigned long value, int width);
 		/// Formats an unsigned long value in decimal notation,
-		/// right justified in a field having at least the specified 
+		/// right justified in a field having at least the specified
 		/// width.
 
 	static std::string format0(unsigned long value, int width);
-		/// Formats an unsigned long value in decimal notation, 
+		/// Formats an unsigned long value in decimal notation,
 		/// right justified and zero-padded
 		/// in a field having at least the specified width.
 
@@ -145,7 +152,7 @@ public:
 
 	static std::string formatHex(unsigned long value, int width);
 		/// Formats an unsigned long value in hexadecimal notation,
-		/// right justified and zero-padded in a field having at least the 
+		/// right justified and zero-padded in a field having at least the
 		/// specified width.
 
 #if defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)
@@ -158,8 +165,8 @@ public:
 		/// right justified in a field having at least the specified width.
 
 	static std::string format0(Int64 value, int width);
-		/// Formats a 64-bit integer value in decimal notation, 
-		/// right justified and zero-padded in a field having at least 
+		/// Formats a 64-bit integer value in decimal notation,
+		/// right justified and zero-padded in a field having at least
 		/// the specified width.
 
 	static std::string formatHex(Int64 value);
@@ -168,7 +175,7 @@ public:
 
 	static std::string formatHex(Int64 value, int width);
 		/// Formats a 64-bit integer value in hexadecimal notation,
-		/// right justified and zero-padded in a field having at least 
+		/// right justified and zero-padded in a field having at least
 		/// the specified width.
 		/// The value is treated as unsigned.
 
@@ -180,8 +187,8 @@ public:
 		/// right justified in a field having at least the specified width.
 
 	static std::string format0(UInt64 value, int width);
-		/// Formats an unsigned 64-bit integer value in decimal notation, 
-		/// right justified and zero-padded in a field having at least the 
+		/// Formats an unsigned 64-bit integer value in decimal notation,
+		/// right justified and zero-padded in a field having at least the
 		/// specified width.
 
 	static std::string formatHex(UInt64 value);
@@ -189,7 +196,7 @@ public:
 
 	static std::string formatHex(UInt64 value, int width);
 		/// Formats a 64-bit integer value in hexadecimal notation,
-		/// right justified and zero-padded in a field having at least 
+		/// right justified and zero-padded in a field having at least
 		/// the specified width.
 
 #endif // defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)
@@ -216,6 +223,10 @@ public:
 		/// sixteen (64-bit architectures) characters wide
 		/// field in hexadecimal notation.
 
+	static std::string format(bool value, BoolFormat format = FMT_TRUE_FALSE);
+		/// Formats a bool value in decimal/text notation,
+		/// according to format parameter.
+
 	static void append(std::string& str, int value);
 		/// Formats an integer value in decimal notation.
 
@@ -225,7 +236,7 @@ public:
 		/// the specified width.
 
 	static void append0(std::string& str, int value, int width);
-		/// Formats an integer value in decimal notation, 
+		/// Formats an integer value in decimal notation,
 		/// right justified and zero-padded in a field
 		/// having at least the specified width.
 
@@ -248,8 +259,8 @@ public:
 		/// specified width.
 
 	static void append0(std::string& str, unsigned int value, int width);
-		/// Formats an unsigned int value in decimal notation, 
-		/// right justified and zero-padded in a field having at 
+		/// Formats an unsigned int value in decimal notation,
+		/// right justified and zero-padded in a field having at
 		/// least the specified width.
 
 	static void appendHex(std::string& str, unsigned value);
@@ -265,11 +276,11 @@ public:
 
 	static void append(std::string& str, long value, int width);
 		/// Formats a long value in decimal notation,
-		/// right justified in a field having at least the 
+		/// right justified in a field having at least the
 		/// specified width.
 
 	static void append0(std::string& str, long value, int width);
-		/// Formats a long value in decimal notation, 
+		/// Formats a long value in decimal notation,
 		/// right justified and zero-padded in a field
 		/// having at least the specified width.
 
@@ -279,7 +290,7 @@ public:
 
 	static void appendHex(std::string& str, long value, int width);
 		/// Formats an unsigned long value in hexadecimal notation,
-		/// right justified and zero-padded in a field having at least the 
+		/// right justified and zero-padded in a field having at least the
 		/// specified width.
 		/// The value is treated as unsigned.
 
@@ -288,11 +299,11 @@ public:
 
 	static void append(std::string& str, unsigned long value, int width);
 		/// Formats an unsigned long value in decimal notation,
-		/// right justified in a field having at least the specified 
+		/// right justified in a field having at least the specified
 		/// width.
 
 	static void append0(std::string& str, unsigned long value, int width);
-		/// Formats an unsigned long value in decimal notation, 
+		/// Formats an unsigned long value in decimal notation,
 		/// right justified and zero-padded
 		/// in a field having at least the specified width.
 
@@ -301,7 +312,7 @@ public:
 
 	static void appendHex(std::string& str, unsigned long value, int width);
 		/// Formats an unsigned long value in hexadecimal notation,
-		/// right justified and zero-padded in a field having at least the 
+		/// right justified and zero-padded in a field having at least the
 		/// specified width.
 
 #if defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)
@@ -314,8 +325,8 @@ public:
 		/// right justified in a field having at least the specified width.
 
 	static void append0(std::string& str, Int64 value, int width);
-		/// Formats a 64-bit integer value in decimal notation, 
-		/// right justified and zero-padded in a field having at least 
+		/// Formats a 64-bit integer value in decimal notation,
+		/// right justified and zero-padded in a field having at least
 		/// the specified width.
 
 	static void appendHex(std::string& str, Int64 value);
@@ -324,7 +335,7 @@ public:
 
 	static void appendHex(std::string& str, Int64 value, int width);
 		/// Formats a 64-bit integer value in hexadecimal notation,
-		/// right justified and zero-padded in a field having at least 
+		/// right justified and zero-padded in a field having at least
 		/// the specified width.
 		/// The value is treated as unsigned.
 
@@ -336,8 +347,8 @@ public:
 		/// right justified in a field having at least the specified width.
 
 	static void append0(std::string& str, UInt64 value, int width);
-		/// Formats an unsigned 64-bit integer value in decimal notation, 
-		/// right justified and zero-padded in a field having at least the 
+		/// Formats an unsigned 64-bit integer value in decimal notation,
+		/// right justified and zero-padded in a field having at least the
 		/// specified width.
 
 	static void appendHex(std::string& str, UInt64 value);
@@ -345,7 +356,7 @@ public:
 
 	static void appendHex(std::string& str, UInt64 value, int width);
 		/// Formats a 64-bit integer value in hexadecimal notation,
-		/// right justified and zero-padded in a field having at least 
+		/// right justified and zero-padded in a field having at least
 		/// the specified width.
 
 #endif // defined(POCO_HAVE_INT64) && !defined(POCO_LONG_IS_64_BIT)
diff --git a/Foundation/src/NumberFormatter.cpp b/Foundation/src/NumberFormatter.cpp
index 3465f8046..ac8b66c56 100644
--- a/Foundation/src/NumberFormatter.cpp
+++ b/Foundation/src/NumberFormatter.cpp
@@ -16,14 +16,14 @@
 // execute, and transmit the Software, and to prepare derivative works of the
 // Software, and to permit third-parties to whom the Software is furnished to
 // do so, all subject to the following:
-// 
+//
 // The copyright notices in the Software and this entire statement, including
 // the above license grant, this restriction and the following disclaimer,
 // must be included in all copies of the Software, in whole or in part, and
 // all derivative works of the Software, unless such copies or derivative
 // works are solely in the form of machine-executable object code generated by
 // a source language processor.
-// 
+//
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
@@ -41,7 +41,7 @@
 
 #if defined(_MSC_VER)
 	#define I64_FMT "I64"
-#elif defined(__APPLE__) 
+#elif defined(__APPLE__)
 	#define I64_FMT "q"
 #else
 	#define I64_FMT "ll"
@@ -51,6 +51,27 @@
 namespace Poco {
 
 
+std::string NumberFormatter::format(bool value, BoolFormat format)
+{
+	switch(format)
+	{
+		default:
+		case FMT_TRUE_FALSE:
+			if (value == true)
+				return "true";
+			return "false";
+		case FMT_YES_NO:
+			if (value == true)
+				return "yes";
+			return "no";
+		case FMT_ON_OFF:
+			if (value == true)
+				return "on";
+			return "off";
+	}
+}
+
+
 void NumberFormatter::append(std::string& str, int value)
 {
 	char buffer[64];
diff --git a/Foundation/testsuite/src/NumberFormatterTest.cpp b/Foundation/testsuite/src/NumberFormatterTest.cpp
index 3e58c6acb..f288a0c0a 100644
--- a/Foundation/testsuite/src/NumberFormatterTest.cpp
+++ b/Foundation/testsuite/src/NumberFormatterTest.cpp
@@ -12,14 +12,14 @@
 // execute, and transmit the Software, and to prepare derivative works of the
 // Software, and to permit third-parties to whom the Software is furnished to
 // do so, all subject to the following:
-// 
+//
 // The copyright notices in the Software and this entire statement, including
 // the above license grant, this restriction and the following disclaimer,
 // must be included in all copies of the Software, in whole or in part, and
 // all derivative works of the Software, unless such copies or derivative
 // works are solely in the form of machine-executable object code generated by
 // a source language processor.
-// 
+//
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
@@ -60,13 +60,13 @@ void NumberFormatterTest::testFormat()
 	assert (NumberFormatter::format((unsigned) 123) == "123");
 	assert (NumberFormatter::format((unsigned) 123, 5) == "  123");
 	assert (NumberFormatter::format0((unsigned) 123, 5) == "00123");
-	
+
 	assert (NumberFormatter::format((long) 123) == "123");
 	assert (NumberFormatter::format((long) -123) == "-123");
 	assert (NumberFormatter::format((long) -123, 5) == " -123");
 
 	assert (NumberFormatter::format((unsigned long) 123) == "123");
-	assert (NumberFormatter::format((unsigned long) 123, 5) == "  123");	
+	assert (NumberFormatter::format((unsigned long) 123, 5) == "  123");
 
 #if defined(POCO_HAVE_INT64)
 	assert (NumberFormatter::format((Int64) 123) == "123");
@@ -74,7 +74,7 @@ void NumberFormatterTest::testFormat()
 	assert (NumberFormatter::format((Int64) -123, 5) == " -123");
 
 	assert (NumberFormatter::format((UInt64) 123) == "123");
-	assert (NumberFormatter::format((UInt64) 123, 5) == "  123");	
+	assert (NumberFormatter::format((UInt64) 123, 5) == "  123");
 #endif
 
 	if (sizeof(void*) == 4)
@@ -85,10 +85,17 @@ void NumberFormatterTest::testFormat()
 	{
 		assert (NumberFormatter::format((void*) 0x12345678) == "0000000012345678");
 	}
-	
+
 	assert (NumberFormatter::format(12.25) == "12.25");
 	assert (NumberFormatter::format(12.25, 4) == "12.2500");
 	assert (NumberFormatter::format(12.25, 8, 4) == " 12.2500");
+
+	assert (NumberFormatter::format(true, NumberFormatter::FMT_TRUE_FALSE) == "true");
+	assert (NumberFormatter::format(false, NumberFormatter::FMT_TRUE_FALSE) == "false");
+	assert (NumberFormatter::format(true, NumberFormatter::FMT_YES_NO) == "yes");
+	assert (NumberFormatter::format(false, NumberFormatter::FMT_YES_NO) == "no");
+	assert (NumberFormatter::format(true, NumberFormatter::FMT_ON_OFF) == "on");
+	assert (NumberFormatter::format(false, NumberFormatter::FMT_ON_OFF) == "off");
 }