FileScanner Question

[chiguy]

Hi Everyone.

I am working on a file expansion program that adds files together

Basically the format of the file is:

some text

#include "anotherfile.txt"

and I have to add the files together and produce one output file.

My program does this fine- BUT - it needs to ignore any "#include" directive that is NOT at the beginning of a line.

Is there a way to accomplish this? Here is my code:

while (scan.hasNext())
{
temp = scan.next();
// If it finds another "#include" indicator, it reads the
// next filename and calls itself.

if (temp.equals("#include"))
{
fname = scan.next();
if (fname.charAt(0)!= '"')
{
System.out.println("No quoted filename.");
System.exit(0);
}
fname = fname.substring(1,fname.length()-1);

if (calledfiles.contains(fname))
{
System.out.println("Infinite Loop Detected- Aborting.");
System.exit(0);
}
try
{
scan2 = fileScanner(fname);
}
catch(FileNotFoundException e)
{
System.out.println("File Read Error");
System.exit(0);
}
// ReadIncluded is the function that contains this code- it is recursive
ReadIncluded(scan2,fname);
if (scan.hasNextLine())
{
scan.nextLine();
}
}
else
{
// file is an array that contains the completed file. any text that is not #include or a filename is added here.
file.add(temp);
}

Thank you!!

[Fubarable]

Rather than use Scanner#next() how about using Scanner#nextLine(), and then use a specific String method to see if the current temp String starts with your key String.

Oh, by the way, welcome to the forum! A suggestion, when posting code, don't use quote tags, but rather use code tags.

This is easier to read:

   public MyGui(MyModel mymodel) {
      this.model = mymodel;
      
      JButton addBtn = new JButton("Add");
      JButton subtractBtn = new JButton("Subtract");
      addBtn.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
            addActionPerformed();
         }
      });
      subtractBtn.addActionListener(new ActionListener() {
         public void actionPerformed(ActionEvent e) {
            subtractActionPerformed();
         }
      });

Than this:

public MyGui(MyModel mymodel) {
this.model = mymodel;

JButton addBtn = new JButton("Add");
JButton subtractBtn = new JButton("Subtract");
addBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
addActionPerformed();
}
});
subtractBtn.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
subtractActionPerformed();
}
});

Much luck!

[chiguy]

Thanks!

I thought there might be an easier way but I implemented the nextLine and works perfectly.

I'll use the code tags in the future, sorry :P