Clazz.declarePackage("JU");
Clazz.load(null, "JU.CommandHistory", ["JU.Lst"], function(){
var c$ = Clazz.decorateAsClass(function(){
this.commandList = null;
this.maxSize = 100;
this.nextCommand = 0;
this.cursorPos = 0;
this.isOn = true;
this.lstStates = null;
Clazz.instantialize(this, arguments);}, JU, "CommandHistory", null);
Clazz.makeConstructor(c$, 
function(){
this.reset(100);
});
Clazz.defineMethod(c$, "clear", 
function(){
this.reset(this.maxSize);
});
Clazz.defineMethod(c$, "reset", 
function(maxSize){
this.maxSize = maxSize;
this.commandList =  new JU.Lst();
this.nextCommand = 0;
this.commandList.addLast("");
this.cursorPos = 0;
}, "~N");
Clazz.defineMethod(c$, "setMaxSize", 
function(maxSize){
if (maxSize == this.maxSize) return;
if (maxSize < 2) maxSize = 2;
while (this.nextCommand > maxSize) {
this.commandList.removeItemAt(0);
this.nextCommand--;
}
if (this.nextCommand > maxSize) this.nextCommand = maxSize - 1;
this.cursorPos = this.nextCommand;
this.maxSize = maxSize;
}, "~N");
Clazz.defineMethod(c$, "getCommandUp", 
function(){
if (this.cursorPos <= 0) return null;
this.cursorPos--;
var str = this.getCommand();
if (str.endsWith("#??")) this.removeCommand(this.cursorPos--);
if (this.cursorPos < 0) this.cursorPos = 0;
return str;
});
Clazz.defineMethod(c$, "getCommandDown", 
function(){
if (this.cursorPos >= this.nextCommand) return null;
this.cursorPos++;
return this.getCommand();
});
Clazz.defineMethod(c$, "getCommand", 
function(){
return this.commandList.get(this.cursorPos);
});
Clazz.defineMethod(c$, "addCommand", 
function(strCommand){
if (!this.isOn && !strCommand.endsWith("#??")) return;
if (strCommand.endsWith("#----")) return;
var i;
while ((i = strCommand.indexOf("\n")) >= 0) {
var str = strCommand.substring(0, i);
if (str.length > 0) this.addCommandLine(str);
strCommand = strCommand.substring(i + 1);
}
if (strCommand.length > 0) this.addCommandLine(strCommand);
}, "~S");
Clazz.defineMethod(c$, "getSetHistory", 
function(n){
this.isOn = (n == -2 ? this.isOn : true);
switch (n) {
case 0:
this.isOn = false;
this.clear();
return "";
case -2147483648:
case -2:
this.clear();
return "";
case -1:
return this.getCommandUp();
case 1:
return this.getCommandDown();
default:
if (n < 0) {
this.setMaxSize(-2 - n);
return "";
}n = Math.max(this.nextCommand - n, 0);
}
var str = "";
for (var i = n; i < this.nextCommand; i++) if (!this.commandList.get(i).toUpperCase().startsWith("WRITE HISTORY")) str += this.commandList.get(i) + "\n";

return str;
}, "~N");
Clazz.defineMethod(c$, "find", 
function(cmd, dir){
var cpos = this.cursorPos;
var c = cmd;
while (c != null) {
c = this.getSetHistory(dir);
if (c == null) break;
if (c.startsWith(cmd)) return c;
}
this.cursorPos = cpos;
return null;
}, "~S,~N");
Clazz.defineMethod(c$, "removeCommand", 
function(){
return this.removeCommand(this.nextCommand - 1);
});
Clazz.defineMethod(c$, "removeCommand", 
function(n){
if (n < 0 || n >= this.nextCommand) return "";
var str = this.commandList.removeItemAt(n);
this.nextCommand--;
return str;
}, "~N");
Clazz.defineMethod(c$, "addCommandLine", 
function(command){
if (command == null || command.length == 0) return;
if (command.endsWith("#--")) return;
if (this.nextCommand > 0 && command.equals(this.commandList.get(this.nextCommand - 1))) {
this.cursorPos = this.nextCommand;
return;
}if (this.nextCommand >= this.maxSize) {
this.commandList.removeItemAt(0);
this.nextCommand = this.maxSize - 1;
}this.commandList.add(this.nextCommand, command);
this.nextCommand++;
this.cursorPos = this.nextCommand;
this.commandList.add(this.nextCommand, "");
}, "~S");
Clazz.defineMethod(c$, "pushState", 
function(stateInfo){
if (this.lstStates == null) this.lstStates =  new JU.Lst();
this.lstStates.addLast(stateInfo);
}, "~S");
Clazz.defineMethod(c$, "popState", 
function(){
if (this.lstStates == null || this.lstStates.size() == 0) return null;
var s = this.lstStates.removeItemAt(this.lstStates.size() - 1);
return s;
});
});
;//5.0.1-v7 Mon Aug 17 10:07:10 MDT 2026
