#include "ParseNode.h"
using namespace std;

// Builder
int ParseNode::indent_by = 4;

ParseNode::ParseNode( void ) : next( 0 ) {};
ParseNode::ParseNode( string _name ) : name( _name ), next( 0 ) {}

ParseNode *ParseNode::set_name( string _name ) {
    name = _name;
    return this;
}

ParseNode *ParseNode::set_name( string *_name ) {
    name = *_name; // deep copy
    delete _name;

    return this;
}

ParseNode::~ParseNode( void ) {
    delete next;
};

string ParseNode::get_name( void ) {
    return name;
}

ParseNode *ParseNode::get_link( void ) const {
    return next;
}

ParseNode *ParseNode::get_last(void) {
    ParseNode *current = this;

    while( current->get_link() != 0 )
	current = current->get_link();

    return current;
}

ParseNode *ParseNode::set_link(ParseNode *_next){
    ParseNode *follow;

    if ( _next == 0 ) return this;

    for ( follow = this; follow->next != 0; follow = follow->next );
    follow->next = _next;

    return this;
}

const string ParseNode::get_name(void) const {
    return name;
}

void ParseNode::print(std::ostream &os, int indent) const {}


void ParseNode::printList( std::ostream &os, int indent ) const {
    print( os, indent );

    if ( next ) {
	next->printList( os, indent );
    }
}

ParseNode &ParseNode::operator,( ParseNode &p ) {
    set_link( &p );

    return *this;
}

ParseNode *mkList(ParseNode &pn){
    /* it just relies on `operator,' to take care of the "arguments" and provides
       a nice interface to an awful-looking address-of, rendering, for example
       (StatementNode *)(&(*$5 + *$7)) into (StatementNode *)mkList(($5, $7))
       (although "nice"  is probably not the word)
    */
    return &pn;
}


// Local Variables: //
// mode: C++                //
// compile-command: "gmake" //
// End: //