If you need to get the attributes list that referenced in a StringTemplate, as well as which specific templates that invoked by it, you need to parse the StringTemplate expression. The following code snippet demonstrates how to do this using StringTemplate.
using Antlr.StringTemplate;
using Antlr.StringTemplate.Language;
using antlr.collections;
public partial class Default4 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//define the template
StringTemplate st = new StringTemplate(@"
<html>
<head>
$StyleImport$
$ScriptImport$
</head>
<body>
$_b_1100()$
$users:_t_13(userName=attr.Name):_b_37(age=12)$
$users:{<li>$attr.Name$</li>}$
$Copyright$
</body>
</html>
");
//loop to print all nodes in the expression tree
for (int i = 0; i < st.Chunks.Count; i++)
{
if (st.Chunks[i] is ASTExpr)
{
RecurTokens((st.Chunks[i] as ASTExpr).AST, 0);
}
}
}
private void RecurTokens(AST ast, int level)
{
if (ast != null)
{
//print current node
for (int i = 0; i < level; i++)
this.Response.Write(" ");
this.Response.Write(ast.Type.ToString("0#") + "----" + ast.ToString().Replace("<", "<").Replace(">", ">"));
this.Response.Write("<br>");
//recursive to the child nodes
RecurTokens(ast.getFirstChild(), level + 1);
//recursive to the sibling nodes
AST sibling = ast.getNextSibling();
while (sibling != null)
{
RecurTokens(sibling, level + 1);
sibling = sibling.getNextSibling();
}
}
}
}
The output is like:
18----StyleImport
18----ScriptImport
07----include
18----_b_1100
06----ARGS
04----:
04----:
18----users
10----
18----_t_13
06----ARGS
19----=
18----userName
24----.
18----attr
18----Name
10----
18----_b_37
06----ARGS
19----=
18----age
33----12
04----:
18----users
10----
31----<li>$attr.Name$</li>
18----Copyright
Now you should be aware of how to make those things to be done.