//throws RecognitionException, TokenStreamException
public void arg(
StringTemplate st
)
{
IToken name = null;
IToken s = null;
IToken bs = null;
StringTemplate defaultValue = null;
try { // for error handling
name = LT(1);
match(ID);
{
if ((LA(1)==ASSIGN) && (LA(2)==STRING))
{
match(ASSIGN);
s = LT(1);
match(STRING);
defaultValue=new StringTemplate("$_val_$");
defaultValue.setAttribute("_val_", s.getText());
defaultValue.defineFormalArgument("_val_");
defaultValue.setName("<"+st.getName()+"'s arg "+name.getText()+" default value subtemplate>");
}
else if ((LA(1)==ASSIGN) && (LA(2)==ANONYMOUS_TEMPLATE)) {
match(ASSIGN);
bs = LT(1);
match(ANONYMOUS_TEMPLATE);
defaultValue=new StringTemplate(st.getGroup(), bs.getText());
defaultValue.setName("<"+st.getName()+"'s arg "+name.getText()+" default value subtemplate>");
}
else if ((LA(1)==RPAREN||LA(1)==COMMA)) {
}
else
{
throw new NoViableAltException(LT(1), getFilename());
}
}
st.defineFormalArgument(name.getText(), defaultValue);
}
catch (RecognitionException ex)
{
reportError(ex);
recover(ex,tokenSet_3_);
}
}