refactor, fixed some timing issues

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk/contrib@14816 d0543943-73ff-0310-b7d9-9358b9ac24b2

trixter/radio/morse.js

@@ -29,8 +29,8 @@
 // supplied
 //
 // examples:
-//    jsapi conference 123 morse code is great
-//    jsapi uuid b0b05504-97be-11de-a116-611fa158f341 morse code is great
+//    jsapi morse.js conference 123 CQ CQ CQ this is FreeSWITCH
+//    jsapi morse.js uuid b0b05504-97be-11de-a116-611fa158f341 morse code is great
 
 var cw_wpm=20;
 var cw_freq=900; // in Hz
@@ -38,14 +38,16 @@ var cw_vol=-15;  // -63.0dB to 0.0dB
 
 
 // you probably do not need to edit anything below here
-var cw_unit=parseInt(1000/cw_wpm);
+
+// international standard is 50 symbols per word - we need units in ms
+var cw_unit=parseInt(60000/(50*cw_wpm));
 
 var DIT = "%("+cw_unit+","+cw_unit+","+cw_freq+");";
-var DAH = "%("+cw_unit*3+","+cw_unit*3+","+cw_freq+");";
+var DAH = "%("+cw_unit*3+","+cw_unit+","+cw_freq+");";
+var SYM_SPACE = "%(0,"+cw_unit*3+","+cw_freq+");";
+var WORD_SPACE = "%(0,"+cw_unit*7+","+cw_freq+");";
                                                 
-// so far there are not any prosigns which are just made up from
-// the letters below, but the spacing needs to be adjusted
-// I also do not have the non-officially defined characters
+// I do not have the non-officially defined characters
 var charCodes = new Array();
 charCodes["a"]="._";
 charCodes["b"]="_...";
@@ -92,6 +94,45 @@ function usage()
 }
 
 
+function makeMorse(c)
+{
+    var morseStr="";
+
+    if(c==" ") {
+        return WORD_SPACE;
+    }
+
+    if(typeof charCodes[c] == "undefined") {
+        console_log("DEBUG","Invalid character "+c+"\n");
+        return;
+    }
+
+    for(var j=0;j<charCodes[c].length;j++) {
+        if(charCodes[c][j] == ".") {
+            morseStr+=DIT;
+        } else {
+            morseStr+=DAH;
+        }
+    }
+
+    return morseStr;
+}
+
+
+function playMorse(command,target,message)
+{
+    var newStr="tone_stream://v="+cw_vol+";";
+    for(var i=0;i<message.length;i++) {
+        newStr+=makeMorse(message[i].toLowerCase());
+        if(i<(message.length-1) && message[i+1]!=" " && message[i]!=" ") {
+            newStr+=SYM_SPACE;
+        }
+    }
+    newStr+=WORD_SPACE;
+    apiExecute(command, target+newStr);
+}
+
+
 if(typeof argv[2] == "undefined" || argv[2].length==0) {
     usage();
  }
@@ -112,22 +153,6 @@ if(argv[0] == "conference") {
  }
 
 
-while(typeof argv[0] != "undefined") {
-    var newStr="tone_stream://v="+cw_vol+";";
-    for(var i=0;i<argv[0].length;i++) {
-        for(var j=0;j<charCodes[argv[0][i]].length;j++) {
-            if(charCodes[argv[0][i]][j] == ".") {
-                newStr+=DIT;
-            } else {
-                newStr+=DAH;
-            }
-        }
-        // symbol space
-        newStr+="%(0,"+cw_unit*3+","+cw_freq+")";
-    }
-    // word space
-    // we only do a cw_unit*4 here because we have a cw_unit*3 already
-    newStr+="%(0,"+cw_unit*4+","+cw_freq+")";
-    apiExecute(command, target+newStr);
-    argv.shift();
+if(typeof argv[0] != "undefined") {
+    playMorse(command,target,argv.join(" "));
  }