void TextExpr::toString(String& dest) { dest.append("text()");
void BasicNodeExpr::toString(String& dest) { switch ( type ) { case NodeExpr::COMMENT_EXPR: dest.append("comment()"); break; case NodeExpr::PI_EXPR : dest.append("processing-instruction()"); break; default: dest.append("node()"); break; }
void TextExpr::toString(String& dest) {    dest.append("text()");} //-- toString