--- a/src/org/tn5250j/TN5250jConstants.java	Wed Jun 18 10:38:46 2014 -0700
+++ b/src/org/tn5250j/TN5250jConstants.java	Wed Jun 18 11:43:08 2014 -0700
@@ -20,6 +20,7 @@
  */
 
 package org.tn5250j;
+import java.util.HashMap;
 
 public interface TN5250jConstants {
 
@@ -27,7 +28,7 @@
    public static final String tn5250jRelease = "0";
    public static final String tn5250jVersion = ".7";
    public static final String tn5250jSubVer= ".3";
-   
+
    public static final String VERSION_INFO = tn5250jRelease + tn5250jVersion + tn5250jSubVer;
 
    // STATE
@@ -184,51 +185,128 @@
    public static final int PF23 = 0xBB;
    public static final int PF24 = 0xBC;
 
-   public static final String mnemonicData[] = {
-        "[backspace]", "[backtab]", "[up]", "[down]", "[left]",
-        "[right]", "[delete]", "[tab]", "[eof]", "[eraseeof]",
-        "[erasefld]", "[insert]", "[home]", "[keypad0]", "[keypad1]",
-        "[keypad2]", "[keypad3]", "[keypad4]", "[keypad5]", "[keypad6]",
-        "[keypad7]", "[keypad8]", "[keypad9]", "[keypad.]", "[keypad,]",
-        "[keypad-]", "[fldext]", "[field+]", "[field-]", "[bof]",
-        "[enter]","[pf1]","[pf2]","[pf3]","[pf4]",
-        "[pf5]","[pf6]","[pf7]","[pf8]","[pf9]",
-        "[pf10]","[pf11]","[pf12]","[pf13]","[pf14]",
-        "[pf15]","[pf16]","[pf17]","[pf18]","[pf19]",
-        "[pf20]","[pf21]","[pf22]","[pf23]","[pf24]",
-        "[clear]", "[help]", "[pgup]", "[pgdown]", "[rollleft]",
-        "[rollright]", "[hostprint]", "[pa1]", "[pa2]", "[pa3]",
-        "[sysreq]","[reset]","[nextword]", "[prevword]", "[copy]",
-        "[paste]","[attn]","[markup]", "[markdown]", "[markleft]",
-        "[markright]","[dupfield]","[newline]","[jumpnext]","[jumpprev]",
-        "[opennew]","[togcon]","[hotspots]","[gui]","[dspmsgs]",
-        "[dspattr]","[print]","[cursor]","[debug]","[close]",
-        "[transfer]","[e-mail]","[runscript]","[spoolfile]","[quick-mail]",
-        "[open-same]","[fastcursordown]","[fastcursorup]","[fastcursorright]","[fastcursorleft]"
-   };
+   public static final HashMap<String,Integer> mnemonicMap = new HashMap<String,Integer>();
+   static {
+        mnemonicMap.put("[backspace]", 1001);
+        mnemonicMap.put("[backtab]", 1002);
+        mnemonicMap.put("[up]", 1003);
+        mnemonicMap.put("[down]", 1004);
+        mnemonicMap.put("[left]", 1005);
+
+        mnemonicMap.put("[right]", 1006);
+        mnemonicMap.put("[delete]", 1007);
+        mnemonicMap.put("[tab]", 1008);
+        mnemonicMap.put("[eof]", 1009);
+        mnemonicMap.put("[eraseeof]", 1010);
+
+        mnemonicMap.put("[erasefld]", 1011);
+        mnemonicMap.put("[insert]", 1012);
+        mnemonicMap.put("[home]", 1013);
+        mnemonicMap.put("[keypad0]", 1014);
+        mnemonicMap.put("[keypad1]", 1015);
+
+        mnemonicMap.put("[keypad2]", 1016);
+        mnemonicMap.put("[keypad3]", 1017);
+        mnemonicMap.put("[keypad4]", 1018);
+        mnemonicMap.put("[keypad5]", 1019);
+        mnemonicMap.put("[keypad6]", 1020);
+
+        mnemonicMap.put("[keypad7]", 1021);
+        mnemonicMap.put("[keypad8]", 1022);
+        mnemonicMap.put("[keypad9]", 1023);
+        mnemonicMap.put("[keypad.]", 1024);
+        mnemonicMap.put("[keypad,]", 1025);
+
+        mnemonicMap.put("[keypad-]", 1026);
+        mnemonicMap.put("[fldext]", 1027);
+        mnemonicMap.put("[field+]", 1028);
+        mnemonicMap.put("[field-]", 1029);
+        mnemonicMap.put("[bof]", 1030);
+
+        mnemonicMap.put("[enter]", 0xF1);
+        mnemonicMap.put("[pf1]", 0x31);
+        mnemonicMap.put("[pf2]", 0x32);
+        mnemonicMap.put("[pf3]", 0x33);
+        mnemonicMap.put("[pf4]", 0x34);
+
+        mnemonicMap.put("[pf5]", 0x35);
+        mnemonicMap.put("[pf6]", 0x36);
+        mnemonicMap.put("[pf7]", 0x37);
+        mnemonicMap.put("[pf8]", 0x38);
+        mnemonicMap.put("[pf9]", 0x39);
+
+        mnemonicMap.put("[pf10]", 0x3A);
+        mnemonicMap.put("[pf11]", 0x3B);
+        mnemonicMap.put("[pf12]", 0x3C);
+        mnemonicMap.put("[pf13]", 0xB1);
+        mnemonicMap.put("[pf14]", 0xB2);
 
-   public static final int mnemonicValue[] = {
-        1001, 1002, 1003, 1004, 1005,
-        1006, 1007, 1008, 1009, 1010,
-        1011, 1012, 1013, 1014, 1015,
-        1016, 1017, 1018, 1019, 1020,
-        1021, 1022, 1023, 1024, 1025,
-        1026, 1027, 1028, 1029, 1030,
-        0xF1, 0x31, 0x32, 0x33, 0x34,
-        0x35, 0x36, 0x37, 0x38, 0x39,
-        0x3A, 0x3B, 0x3C, 0xB1, 0xB2,
-        0xB3, 0xB4, 0xB5, 0xB6, 0xB7,
-        0xB8, 0xB9, 0xBA, 0xBB, 0xBC,
-        0xBD, 0xF3, 0xF4, 0xF5, 0xD9,
-        0xDA, 0xF6, 0x6C, 0x6E, 0x6B,
-        1031, 1032, 1033, 1034, 1035,
-        1036, 1037, 1038, 1039, 1040,
-        1041, 1042, 1043, 5000, 5001,
-        5002, 5003, 5004, 5005, 5006,
-        5007, 5008, 5009, 5010, 5011,
-        5012, 5013, 5014, 5015, 5016,
-        5017, 5018, 5019, 5020, 5021
-   };
+        mnemonicMap.put("[pf15]", 0xB3);
+        mnemonicMap.put("[pf16]", 0xB4);
+        mnemonicMap.put("[pf17]", 0xB5);
+        mnemonicMap.put("[pf18]", 0xB6);
+        mnemonicMap.put("[pf19]", 0xB7);
+
+        mnemonicMap.put("[pf20]", 0xB8);
+        mnemonicMap.put("[pf21]", 0xB9);
+        mnemonicMap.put("[pf22]", 0xBA);
+        mnemonicMap.put("[pf23]", 0xBB);
+        mnemonicMap.put("[pf24]", 0xBC);
+
+        mnemonicMap.put("[clear]", 0xBD);
+        mnemonicMap.put("[help]", 0xF3);
+        mnemonicMap.put("[pgup]", 0xF4);
+        mnemonicMap.put("[pgdown]", 0xF5);
+        mnemonicMap.put("[rollleft]", 0xD9);
+
+        mnemonicMap.put("[rollright]", 0xDA);
+        mnemonicMap.put("[hostprint]", 0xF6);
+        mnemonicMap.put("[pa1]", 0x6C);
+        mnemonicMap.put("[pa2]", 0x6E);
+        mnemonicMap.put("[pa3]", 0x6B);
+
+        mnemonicMap.put("[sysreq]", 1031);
+        mnemonicMap.put("[reset]", 1032);
+        mnemonicMap.put("[nextword]", 1033);
+        mnemonicMap.put("[prevword]", 1034);
+        mnemonicMap.put("[copy]", 1035);
+
+        mnemonicMap.put("[paste]", 1036);
+        mnemonicMap.put("[attn]", 1037);
+        mnemonicMap.put("[markup]", 1038);
+        mnemonicMap.put("[markdown]", 1039);
+        mnemonicMap.put("[markleft]", 1040);
+
+        mnemonicMap.put("[markright]", 1041);
+        mnemonicMap.put("[dupfield]", 1042);
+        mnemonicMap.put("[newline]", 1043);
+        mnemonicMap.put("[jumpnext]", 5000);
+        mnemonicMap.put("[jumpprev]", 5001);
+
+        mnemonicMap.put("[opennew]", 5002);
+        mnemonicMap.put("[togcon]", 5003);
+        mnemonicMap.put("[hotspots]", 5004);
+        mnemonicMap.put("[gui]", 5005);
+        mnemonicMap.put("[dspmsgs]", 5006);
+
+        mnemonicMap.put("[dspattr]", 5007);
+        mnemonicMap.put("[print]", 5008);
+        mnemonicMap.put("[cursor]", 5009);
+        mnemonicMap.put("[debug]", 5010);
+        mnemonicMap.put("[close]", 5011);
+
+        mnemonicMap.put("[transfer]", 5012);
+        mnemonicMap.put("[e-mail]", 5013);
+        mnemonicMap.put("[runscript]", 5014);
+        mnemonicMap.put("[spoolfile]", 5015);
+        mnemonicMap.put("[quick-mail]", 5016);
+
+        mnemonicMap.put("[open-same]", 5017);
+        mnemonicMap.put("[fastcursordown]", 5018);
+        mnemonicMap.put("[fastcursorup]", 5019);
+        mnemonicMap.put("[fastcursorright]", 5020);
+        mnemonicMap.put("[fastcursorleft]", 5021);
+    };
 
    public static final String MNEMONIC_CLEAR   =  "[clear]";
    public static final String MNEMONIC_ENTER   =  "[enter]";
@@ -426,7 +504,7 @@
    public static final char COLOR_FG_LIGHT_MAGENTA =  0xD;
    public static final char COLOR_FG_BROWN         =  0xE;
    public static final char COLOR_FG_WHITE_HIGH    =  0xF;
-                                                  
+
    public static final int EXTENDED_5250_REVERSE   =  0x10;
    public static final int EXTENDED_5250_UNDERLINE   =  0x08;
    public static final int EXTENDED_5250_BLINK   =  0x04;