[antlr-interest] Repeating output constructs with stringtemplates

[Terence Parr]

On Aug 30, 2007, at 3:26 PM, Andy Tripp wrote:

> Hoping back onto my "vanilla library code is better than clever  
> syntax" soapbox,

Hi Andy.  so DSLs are bad?  We should all go back to Pascal or  
assembly?  OO is good, but functional is bad?  I can't imagine how

decl(type, names) ::= "<names:{ n | <type> <n>;}>"

is not superior to your code. I have to imagine the emergent behavior  
in code.  In my template, it says...well, "here's the output".  A  
document with holes in it.  Gotta learn the syntax like you had to  
learn Java.

You should also argue against parser generators if you're against  
unparser generators ;)

Ter

> void splitUpDeclarations(MyAST decl) {
>     MyAST parent = decl.getParent();
>     int insertLocation = parent.indexOfChild(decl);
>     MyAST type = decl.getChild(0);                 // first child
>     List<MyAST> vars = decl.getChildren(1);  // rest of children
>     for (MyAST var: vars) {
>         MyAst singleDecl = new MyAST(DECL);
>         singleDecl.addChildren(type.clone(), var);
>         parent.insert(insertLocation, singleDecl);
>     }
> }