[photran] What is the difference between ast.toString() and ast.getRoot(

[PoLiang(柏良) <wu87@xxxxxxxxxxxx>]

I am currently implementing a refactoring class, which extends FortranEditorRefactoring. In doCreateChange, I call addChangeFromModifiedAST(fileInEditor, pm), but the last character of the code is missing. I check the code by calling ast.getRoot().toString(), and it is correct. I further check addChangeFromModifiedAST() in VPGRefactoring.java. The problem is that ast.toString() misses the last character of the code. In short, in the refactoring class, ast.getRoot().toString() shows the correct code. However, in the addChangeFromModifiedAST() of VPGRefactoring.java, ast.toString() misses the last character. Following is a code segment in doCreateChange().

@Override

protected void doCreateChange(IProgressMonitor pm) throws CoreException,

        OperationCanceledException

{

// remove the subprogram

for (ScopingNode node : subprogramList){            

            node.removeFromTree();

}

System.out.println(ast.getRoot().toString); // correct

addChangeFromModifiedAST(fileInEditor, pm); // missing the last character

vpg.releaseAllASTs();

}

Thanks.