[antlr-interest] treeparser to copy input to output

[SainTiss]

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Hi,

I need to do some simple transformations on java source code.
Basically, what I'd like to do is turn declarations like this:
int myInt = 78;
into assignment statements like this:
myInt = 78;

so I took a look at the java grammar, which will be useful to parse the java 
source code. For the second part I thought it would be easiest to start with 
some code which just prints all nodes to System.out. I thought this would 
result in the input java source again, but instead I get something like the 
following:

CLASS_DEF
MODIFIERS
A
EXTENDS_CLAUSE
IMPLEMENTS_CLAUSE
OBJBLOCK
...
final
strictfp
H
EXTENDS_CLAUSE
IMPLEMENTS_CLAUSE
OBJBLOCK

The code I used was the following:

public static void printTree(AST t) {
        System.out.println(t.getText());
        if (t.getNumberOfChildren() != 0) { 
            AST child = t.getFirstChild();
            printTree(child);
            for (int i = 1; i < t.getNumberOfChildren(); i++) {
                child = child.getNextSibling();
                printTree(child);
            }       
        }       
    }


So it seems I got something wrong here... What do I have to do to just get the 
input back? Or isn't this the right approach for this kind of simple 
transformations?

Thanks in advance,

Hans Schippers


- -- 
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Hans Schippers
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