I have been trying to parse this and translate it using a .stg file, and it
does not work. Every time, it parses I have no idea what's going on.
Help!?
Hop.stg:
group Hop;
start(p) ::= "<pack>"
package(name) ::= "packagedafdjk <name>"
qualified_name(name) ::= "<name>"
HopSymbolTableWalker.g:
tree grammar HopSymbolTableWalker;
options {
tokenVocab=Hop;
ASTLabelType=CommonTree;
output = template;
}
...
start
@after{$st = %start(p={$pack.text});}
: (pack = package_rule ref = reference+ // -> start(pack={$pack.st
})
| ref = reference+ pack = package_rule
| pack = package_rule // -> start(pack={$
pack.st})
| ref = reference+
| )
cl = class_declaration EOF //Declaring a class name
;
package_rule
@after{$st = %package(name={$qn.text});}
: PACKAGE_NAME qn=qualified_name
{
thisPackage = $qn.type;
}
;
qualified_name returns [QualifiedNameDescriptor type]
@after {$st = %{result};}
@init {
String result = "";
}
: ^(QUALIFIED_NAME ids+= ID (PERIOD ids+=ID)*)
{
QualifiedNameDescriptor t = new QualifiedNameDescriptor();
t.setLineBegin(((CommonTree)$ids.get(0)).token.getLine());
t.setColumnBegin(((CommonTree)$ids.get(0)).token.getCharPositionInLine());
/*t.setNameFromList($ids);
*/
String name = "";
Iterator it = $ids.iterator();
while(it.hasNext()) {
name += ((CommonTree) it.next()).getText();
if(it.hasNext()) {
name += $PERIOD.text;
}
}
t.setName(name);
result = name;
t.setLineEnd(((CommonTree)$ids.get($ids.size() - 1)).token.getLine());
t.setColumnEnd(((CommonTree)$ids.get($ids.size() -
1)).token.getCharPositionInLine());
$type = t;
} //->
qualified_name(name={result})
;
Thanks for your ideas. I'm absolutely stuck.
Kim
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