StringStream() - what am I doing wrong?

[jon]

I cant seem to use StringStream correctly. Here is what I am trying to use;

//Initialize
trace("Initializing:.....................................");
getAdditionalFile();

var stringIn = new StringStream($STREAM_IN);
var stringOut = new StringStream($STREAM_OUT);

//var basePath = getAppDir();
var basePath = "F:\\data\\synergy management consulting\\risk maturity\\01 Source\\Scripts\\questionDev\\stringDecoder\\Application";
trace("basePath = "+basePath); 

trace("File.exists(basePath+\"\\in.txt\") = " + File.exists(basePath+"\\in.txt"));

stringIn.readFromFile(basePath+"\\in.txt");

trace("stringIn.getPos = " + stringIn.getPos);
trace("stringIn.eof = " + stringIn.eof);

var lineRead = stringIn.readLine();
var i = 0;

trace("stringIn.readUnicodeString() = " + stringIn.readUnicodeString());
trace("stringIn.readString() = " + stringIn.readString());
trace("stringIn.get() = " + stringIn.get());
trace("stringIn.readLine() = " + stringIn.readLine());
trace("stringIn.uncompress() = " + stringIn.uncompress());

stringOut.writeLine("questions = new Array();");

while(stringIn.eof != true){
	trace("lineRead = " + lineRead);
	trace("stringIn.getPos = " + stringIn.getPos);
	stringOut.writeLine(lineRead);
	readLine = stringIn.readLine();
	i++;
}

stringOut.saveToFile(basePath+"\\out.txt");

stringOut.close();

stringIn.close();
return true;

Sorry about that huge chunk of code. What happens is that it traces;

File.exists(basePath+"\in.txt") = true
stringIn.getPos = -1
stringIn.eof = false
stringIn.readUnicodeString() =
stringIn.readString() =
stringIn.get() = -1
stringIn.readLine() =
stringIn.uncompress() =

and it saves an empty file.

So the file exists. And it saves something. But i'm not successfully doing anything with the FileStream. I was hoping somebody could tell me what i'm doing wrong.

Again, i appologize for the length of this post.
Jon

[SWFKit]

Please try to change the first two lines to

var stringIn = new StringStream;
var stringOut = new StringStream;

, and check whether it will work. Thank you.

[jon]

None of my traces change but my "out.txt" file does now contain "questions = new Array();".

So a definate improvement.

How should I deal with reading the data in?

Thanks
Jon

[SWFKit]

The "readFromFile" method is a static method, so you will have to call it as follows

stringIn= StringStream.readFromFile(basePath+"\\in.txt");

while

stringIn.readFromFile(basePath+"\\in.txt");

does not return the content of the text file into "stringIn", but return it into a temporary variable that is discarded.

[jon]

Thankyou very much, I think I'm nearly there.

However I'm just reading the first line over and over, how do I 'move the read head?'. Maybe a better question is 'How should I best read a .txt file, line by line?'.

Thanks again
Jon

[SWFKit]

var fs = new FileStream(basePath + "\\in.txt", "r");

while (fs.pos < fs.length) {
  var t = fs.readLine();
  trace(t);
}

[jon]

Thanks very much, that worked a charm.
I'm sure there was a reason I didnt ask that question first