| LEESA expressions embedded in a C++ program | XPath expressions (string encoded) |
|---|---|
| std::vector<name> author_names = evaluate(root, catalog() >> book() >> author() >> name()); | "/book/author/name/text()" |
| std::vector<name> author_names = evaluate(root, catalog() >> DescendantsOf(catalog(), name())); | "//name/text()" |
| std::vector<name> author_names = evaluate(root, catalog() >> LevelDescendantsOf(catalog(), _, _, name())); | "/*/*/*/name/text()" |
| bool from_england(author a){ return a.country() == "England"; } std::vector<name> author_names = evaluate(root, catalog() >> DescendantsOf(catalog(), author()) >> Select(author(), from_england) >> name()); |
"//author[country/text() = 'England']/name/text()" |
| std::vector<tuple<name, country>> tuples =
evaluate(root, catalog() >> book() >> author() >> MembersAsTupleOf(author(), make_tuple(name(), country()))); |
?? |
| MyVisitor visitor; std::vector<country> countries = evaluate(root, catalog() >> visitor >> book() >> visitor >> author() >> visitor >> country() >> visitor); |
?? |
| MyVisitor visitor; evaluate(root, catalog() >> book() >> MembersOf(book(), title() >> visitor, price() >> visitor)); |
?? |
| MyHierarchicalVisitor visitor; evaluate(c, catalog() >> VisitLeave(catalog(), visitor, catalog() >>= book() >> VisitLeave(book(), visitor, book() >>= author() >> VisitLeave(author(), visitor, author() >>= born() >> VisitLeave(born(), visitor))))); |
?? |
| MyHierarchicalVisitor v; evaluate(root, catalog() >> FullTopDown(catalog(), VisitStrategy(v), LeaveStrategy(v))); |
?? |