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/*=============================================================================
Copyright (c) 2001-2010 Joel de Guzman
Copyright (c) 2009 Francois Barel
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#include <boost/spirit/repository/include/qi_subrule.hpp>
#include <boost/spirit/include/qi_operator.hpp>
#include <boost/spirit/include/qi_char.hpp>
#include <boost/spirit/include/qi_string.hpp>
#include <boost/spirit/include/qi_numeric.hpp>
#include <boost/spirit/include/qi_auxiliary.hpp>
#include <boost/spirit/include/qi_nonterminal.hpp>
#include <boost/spirit/include/qi_action.hpp>
#include <boost/phoenix/core.hpp>
#include <boost/phoenix/operator.hpp>
#include <boost/phoenix/object.hpp>
#include <boost/phoenix/bind.hpp>
#include <boost/fusion/include/std_pair.hpp>
#include <string>
#include <cstring>
#include <iostream>
#include "test.hpp"
int
main()
{
using spirit_test::test_attr;
using spirit_test::test;
using namespace boost::spirit::ascii;
using namespace boost::spirit::qi::labels;
using boost::spirit::qi::locals;
using boost::spirit::qi::rule;
using boost::spirit::qi::int_;
using boost::spirit::qi::fail;
using boost::spirit::qi::on_error;
using boost::spirit::qi::debug;
using boost::spirit::repository::qi::subrule;
namespace phx = boost::phoenix;
{ // basic tests
subrule<99> entry;
subrule<42> a;
subrule<48> b;
subrule<16> c;
rule<char const*> start;
entry.name("entry");
a.name("a");
b.name("b");
c.name("c");
start.name("start");
// debug(entry);
// debug(a);
// debug(b);
// debug(c);
debug(start);
// subrules with no rule
BOOST_TEST(test("abcabcacb", (
entry = *(a | b | c)
, a = 'a'
, b = 'b'
, c = 'c'
)));
// check subrule group behaves as a parser
BOOST_TEST(test("xabcabcacb", 'x' >> (
entry = *(a | b | c)
, a = 'a'
, b = 'b'
, c = 'c'
)));
// subrules in a rule
start = (
entry = *(a | b | c)
, a = 'a'
, b = 'b'
, c = 'c'
);
BOOST_TEST(test("abcabcacb", start));
// subrule -> rule call
start = (
entry = (a | b) >> (start | b)
, a = 'a'
, b = 'b'
);
BOOST_TEST(test("aaaabababaaabbb", start));
BOOST_TEST(test("aaaabababaaabba", start, false));
// subrule recursion
start = (
entry = (a | b) >> (entry | b)
, a = 'a'
, b = 'b'
);
BOOST_TEST(test("aaaabababaaabbb", start));
BOOST_TEST(test("aaaabababaaabba", start, false));
// no-ops
#if defined(BOOST_CLANG) && defined(__has_warning)
# pragma clang diagnostic push
# if __has_warning("-Wself-assign-overloaded")
# pragma clang diagnostic ignored "-Wself-assign-overloaded"
# endif
#endif
a = a;
#if defined(BOOST_CLANG) && defined(__has_warning)
# pragma clang diagnostic pop
#endif
subrule<42> aa(a);
}
{ // basic tests w/ skipper, subrules declared const
subrule<0> const entry("entry");
subrule<1> const a("a");
subrule<2> const b("b");
subrule<3> const c("c");
rule<char const*, space_type> start("start");
// debug(entry);
// debug(a);
// debug(b);
// debug(c);
debug(start);
start = (
entry = *(a | b | c)
, a = 'a'
, b = 'b'
, c = 'c'
);
BOOST_TEST(test(" a b c a b c a c b ", start, space));
start = (
entry = (a | b) >> (entry | b)
, a = 'a'
, b = 'b'
);
BOOST_TEST(test(" a a a a b a b a b a a a b b b ", start, space));
BOOST_TEST(test(" a a a a b a b a b a a a b b a ", start, space, false));
// no-ops
#if defined(BOOST_CLANG) && defined(__has_warning)
# pragma clang diagnostic push
# if __has_warning("-Wself-assign-overloaded")
# pragma clang diagnostic ignored "-Wself-assign-overloaded"
# endif
#endif
a = a;
#if defined(BOOST_CLANG) && defined(__has_warning)
# pragma clang diagnostic pop
#endif
subrule<1> aa(a);
}
{ // context tests
char ch;
rule<char const*, char()> a;
subrule<0, char()> entry;
a = (entry = alpha[_val = _1])[_val = _1];
BOOST_TEST(test("x", a[phx::ref(ch) = _1]));
BOOST_TEST(ch == 'x');
a %= (entry = alpha[_val = _1]);
BOOST_TEST(test_attr("z", a, ch)); // attribute is given.
BOOST_TEST(ch == 'z');
}
{ // auto subrules tests
char ch;
rule<char const*, char()> a;
subrule<0, char()> entry;
a = (entry %= alpha)[_val = _1];
BOOST_TEST(test("x", a[phx::ref(ch) = _1]));
BOOST_TEST(ch == 'x');
a %= (entry %= alpha);
BOOST_TEST(test_attr("z", a, ch)); // attribute is given.
BOOST_TEST(ch == 'z');
}
{ // auto subrules tests: allow stl containers as attributes to
// sequences (in cases where attributes of the elements
// are convertible to the value_type of the container or if
// the element itself is an stl container with value_type
// that is convertible to the value_type of the attribute).
std::string s;
rule<char const*, std::string()> r;
subrule<0, std::string()> entry;
r %= (entry %= char_ >> *(',' >> char_));
BOOST_TEST(test("a,b,c,d,e,f", r[phx::ref(s) = _1]));
BOOST_TEST(s == "abcdef");
BOOST_TEST(test("abcdef", (
entry %= char_ >> char_ >> char_ >> char_ >> char_ >> char_
)[phx::ref(s) = _1]));
BOOST_TEST(s == "abcdef");
}
{ // synth attribute value-init
std::string s;
subrule<0, char()> sr;
BOOST_TEST(test_attr("abcdef", +(sr = alpha[_val += _1]), s));
BOOST_TEST(s == "abcdef");
}
{ // auto subrules aliasing tests
char ch;
rule<char const*, char()> r;
subrule<0, char()> a;
subrule<1, char()> b;
r %= (
a %= b
, b %= alpha
);
BOOST_TEST(test("x", r[phx::ref(ch) = _1]));
BOOST_TEST(ch == 'x');
BOOST_TEST(test_attr("z", r, ch)); // attribute is given.
BOOST_TEST(ch == 'z');
}
{ // context (w/arg) tests
char ch;
// entry subrule with 1 arg
rule<char const*, char(int)> a;
subrule<1, char(int)> sr1;
a %= (
sr1 = alpha[_val = _1 + _r1]
)(_r1);
BOOST_TEST(test("x", a(phx::val(1))[phx::ref(ch) = _1]));
BOOST_TEST(ch == 'x' + 1);
// other subrule with 1 arg
subrule<0, char()> sr0;
a %= (
sr0 %= sr1(1)
, sr1 = alpha[_val = _1 + _r1]
);
// allow scalars as subrule args too
rule<char const*, char()> b;
b %= (
sr1 = alpha[_val = _1 + _r1]
)(1);
BOOST_TEST(test_attr("b", b, ch));
BOOST_TEST(ch == 'b' + 1);
// entry subrule with 2 args
subrule<2, char(int, int)> sr2;
BOOST_TEST(test_attr("a", (
sr2 = alpha[_val = _1 + _r1 + _r2]
)(1, 2), ch));
BOOST_TEST(ch == 'a' + 1 + 2);
// multiple subrules + args
BOOST_TEST(test_attr("ba", (
sr2 = alpha[_val = _1 + _r1 + _r2] >> sr1(3)[_val -= _1]
, sr1 = alpha[_val = _1 + _r1]
)(1, 2), ch));
BOOST_TEST(ch == ('b' + 1 + 2) - ('a' + 3));
}
{ // context (w/ reference arg) tests
char ch;
subrule<0, void(char&)> sr; // 1 arg (reference) - direct
BOOST_TEST(test("x", (sr = alpha[_r1 = _1])(phx::ref(ch))));
BOOST_TEST(ch == 'x');
rule<char const*, void(char&)> a; // forwarded via a rule
a = (sr = alpha[_r1 = _1])(_r1);
BOOST_TEST(test("y", a(phx::ref(ch))));
BOOST_TEST(ch == 'y');
}
{ // context (w/locals) tests
rule<char const*> r;
subrule<0, locals<char> > a; // 1 local
r = (
a = alpha[_a = _1] >> char_(_a)
);
BOOST_TEST(test("aa", r));
BOOST_TEST(!test("ax", r));
}
{ // context (w/args and locals) tests
rule<char const*, void(int)> a;
subrule<0, void(int), locals<char> > sr; // 1 arg + 1 local
a = (
sr = alpha[_a = _1 + _r1] >> char_(_a)
)(_r1);
BOOST_TEST(test("ab", a(phx::val(1))));
BOOST_TEST(test("xy", a(phx::val(1))));
BOOST_TEST(!test("ax", a(phx::val(1))));
}
{ // void() has unused type (void == unused_type)
std::pair<int, char> attr;
subrule<0, void()> sr;
BOOST_TEST(test_attr("123ax", int_ >> char_ >> (sr = char_), attr));
BOOST_TEST(attr.first == 123);
BOOST_TEST(attr.second == 'a');
}
{ // test that injected attributes are ok
rule<char const*> r;
subrule<0, char(int)> sr;
r = (
sr = char_(_r1)[_val = _1]
)(42);
}
{ // show that sra = srb and sra %= srb works as expected
subrule<0, int()> sra;
subrule<1, int()> srb;
int attr;
BOOST_TEST(test_attr("123", (sra %= int_), attr));
BOOST_TEST(attr == 123);
BOOST_TEST(test_attr("123", (srb %= sra, sra %= int_), attr));
BOOST_TEST(attr == 123);
BOOST_TEST(test_attr("123", (srb = sra, sra %= int_), attr));
BOOST_TEST(attr == 123);
}
{ // std::string as container attribute with auto subrules
subrule<0, std::string()> text;
std::string attr;
BOOST_TEST(test_attr("x", (
text %= +(!char_(')') >> !char_('>') >> char_)
), attr));
BOOST_TEST(attr == "x");
}
// { // error handling
//
// using namespace boost::spirit::ascii;
// using boost::phoenix::construct;
// using boost::phoenix::bind;
//
// rule<char const*> r;
// r = '(' > int_ > ',' > int_ > ')';
//
// on_error<fail>
// (
// r, std::cout
// << phx::val("Error! Expecting: ")
// << _4
// << phx::val(", got: \"")
// << construct<std::string>(_3, _2)
// << phx::val("\"")
// << std::endl
// );
//
// BOOST_TEST(test("(123,456)", r));
// BOOST_TEST(!test("(abc,def)", r));
// BOOST_TEST(!test("(123,456]", r));
// BOOST_TEST(!test("(123;456)", r));
// BOOST_TEST(!test("[123,456]", r));
// }
return boost::report_errors();
}
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