diff --git a/src/main/java/org/harctoolbox/ircore/IrCoreUtils.java b/src/main/java/org/harctoolbox/ircore/IrCoreUtils.java
index 6456067a..76579d47 100644
--- a/src/main/java/org/harctoolbox/ircore/IrCoreUtils.java
+++ b/src/main/java/org/harctoolbox/ircore/IrCoreUtils.java
@@ -51,6 +51,7 @@ public final class IrCoreUtils {
     public final static long SOME = -3L;
 
     public static final String LINE_SEPARATOR = System.getProperty("line.separator");
+    public static final String NEWLINE_REGEX = "\\r?\\n";
 
     private static Map<Integer, String> radixPrefixes;
     private static Map<String, Integer> prefixToRadix;
diff --git a/src/test/java/org/harctoolbox/irp/IrpTransmogrifierNGTest.java b/src/test/java/org/harctoolbox/irp/IrpTransmogrifierNGTest.java
index c1560cfc..30bdd1bd 100644
--- a/src/test/java/org/harctoolbox/irp/IrpTransmogrifierNGTest.java
+++ b/src/test/java/org/harctoolbox/irp/IrpTransmogrifierNGTest.java
@@ -257,7 +257,7 @@ public void testDecodeNoRepeatedNec() {
         System.out.println("decodeNoRepeatedNec");
         String args = "decode --debug nec1 +9041 -4507 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -1694 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -44293";
         String result = execute(args);
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0].substring(0,21), "NEC: {D=12,S=34,F=56}");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0].substring(0,21), "NEC: {D=12,S=34,F=56}");
     }
 
     @Test(enabled = true)
@@ -265,7 +265,7 @@ public void testDecodeRepeatedNec1() {
         System.out.println("decodeRepeatedNec1");
         String args = "decode -p nec1 -r  +9041 -4507 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -1694 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -44293 +9041 -2267 +626 -96193 +9041 -2267 +626 -96193 +9041 -2267 +626 -96193 +9041 -2267 +626 -96193";
         String result = execute(args);
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "NEC1: {D=12,S=34,F=56}");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "NEC1: {D=12,S=34,F=56}");
     }
 
     @Test(enabled = true)
@@ -273,7 +273,7 @@ public void testDecodeNec1OneDitto() {
         System.out.println("testDecodeNec1OneDitto");
         String args = "decode -p nec1 +9041 -4507 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -1694 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -1694 +573 -573 +573 -573 +573 -573 +573 -1694 +573 -1694 +573 -44293 +9041 -2267 +626 -96193";
         String result = execute(args);
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "NEC1: {D=12,S=34,F=56}, beg=0, end=71, reps=1");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "NEC1: {D=12,S=34,F=56}, beg=0, end=71, reps=1");
     }
 
     @Test(enabled = true)
@@ -282,10 +282,10 @@ public void testDecodeNec1OneDittoNec1TwoDittoJunk() {
         String sequence = NEC1INTRO + " " + NEC1DITTO + " " + NEC1INTRO + " " + NEC1DITTO + " " + NEC1DITTO + "+1234 -54678";
         String args = "decode -p nec1 " + sequence;
         String result = execute(args);
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "NEC1: {D=12,S=34,F=56}, beg=0, end=71, reps=1 {UNDECODED. length=78}");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "NEC1: {D=12,S=34,F=56}, beg=0, end=71, reps=1 {UNDECODED. length=78}");
         args = "decode -p nec1 --recursive " + sequence;
         result = execute(args);
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "NEC1: {D=12,S=34,F=56}, beg=0, end=71, reps=1 {NEC1: {D=12,S=34,F=56}, beg=72, end=147, reps=2 {UNDECODED. length=2}}");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "NEC1: {D=12,S=34,F=56}, beg=0, end=71, reps=1 {NEC1: {D=12,S=34,F=56}, beg=72, end=147, reps=2 {UNDECODED. length=2}}");
     }
 
     @Test(enabled = true)
@@ -624,56 +624,56 @@ public void testSillyCommand() {
     public void testHelp() {
         System.out.println("testHelp");
         String result = execute("help");
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "Usage: IrpTransmogrifier [options] [command] [command options]");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "Usage: IrpTransmogrifier [options] [command] [command options]");
     }
 
     @Test(enabled = true)
     public void testDashHelp() {
         System.out.println("testDashHelp");
         String result = execute("--help");
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "Usage: IrpTransmogrifier [options] [command] [command options]");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "Usage: IrpTransmogrifier [options] [command] [command options]");
     }
 
     @Test(enabled = true)
     public void testHelpShort() {
         System.out.println("testHelpShort");
         String result = execute("help --short");
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "Usage: IrpTransmogrifier [options] [command] [command options]");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "Usage: IrpTransmogrifier [options] [command] [command options]");
     }
 
     @Test(enabled = true)
     public void testHelpCommon() {
         System.out.println("testHelpCommon");
         String result = execute("help --common");
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "Common options:");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "Common options:");
     }
 
     @Test(enabled = true)
     public void testHelpDashHelp() {
         System.out.println("testHelpDashHelp");
         String result = execute("help --help");
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "Describe the syntax of program and commands.");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "Describe the syntax of program and commands.");
     }
 
     @Test(enabled = true)
     public void testHelpDescribe() {
         System.out.println("testHelpDescribe");
         String result = execute("help --describe");
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "This command list the syntax for the command(s) given as argument,");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "This command list the syntax for the command(s) given as argument,");
     }
 
     @Test(enabled = true)
     public void testHelpList() {
         System.out.println("testHelpList");
         String result = execute("help list");
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "List protocols and their properties.");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "List protocols and their properties.");
     }
 
     @Test(enabled = true)
     public void testListHelp() {
         System.out.println("testListHelp");
         String result = execute("list --help");
-        assertEquals(result.split(IrCoreUtils.LINE_SEPARATOR)[0], "List protocols and their properties.");
+        assertEquals(result.split(IrCoreUtils.NEWLINE_REGEX)[0], "List protocols and their properties.");
     }
 
     @Test(enabled = true)