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/*=============================================================================
Copyright (c) 2004 Stefan Slapeta
Copyright (c) 2002-2003 Martin Wille
http://spirit.sourceforge.net/
Use, modification and distribution is subject to 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)
=============================================================================*/
// vi:ts=4:sw=4:et
// Tests for BOOST_SPIRIT_CLASSIC_NS::if_p
// [28-Dec-2002]
////////////////////////////////////////////////////////////////////////////////
#include <iostream>
#include <cstring>
#include <boost/spirit/include/classic_core.hpp>
#include <boost/spirit/include/classic_if.hpp>
#include <boost/spirit/include/classic_assign_actor.hpp>
#include <boost/ref.hpp>
#include "impl/string_length.hpp"
namespace local
{
template <typename T>
struct var_wrapper
: public ::boost::reference_wrapper<T>
{
typedef ::boost::reference_wrapper<T> parent;
explicit inline var_wrapper(T& t) : parent(t) {}
inline T& operator()() const { return parent::get(); }
};
template <typename T>
inline var_wrapper<T>
var(T& t)
{
return var_wrapper<T>(t);
}
}
typedef ::BOOST_SPIRIT_CLASSIC_NS::rule<> rule_t;
typedef ::BOOST_SPIRIT_CLASSIC_NS::rule<BOOST_SPIRIT_CLASSIC_NS::no_actions_scanner<>::type >
no_actions_rule_t;
unsigned int test_count = 0;
unsigned int error_count = 0;
unsigned int number_result;
static const unsigned int kError = 999;
static const bool good = true;
static const bool bad = false;
rule_t hex_prefix;
no_actions_rule_t oct_prefix;
rule_t hex_rule, oct_rule, dec_rule;
rule_t auto_number_rule;
rule_t hex_or_dec_number_rule;
void
test_number(char const *s, unsigned int wanted, rule_t const &r)
{
using namespace std;
++test_count;
number_result = wanted-1;
::BOOST_SPIRIT_CLASSIC_NS::parse_info<> m = ::BOOST_SPIRIT_CLASSIC_NS::parse(s, s + test_impl::string_length(s), r);
bool result = wanted == kError?(m.full?bad:good): (number_result==wanted);
if (m.full && (m.length != test_impl::string_length(s)))
result = bad;
if (result==good)
cout << "PASSED";
else
{
++error_count;
cout << "FAILED";
}
cout << ": \"" << s << "\" ==> ";
if (number_result==wanted-1)
cout << "<error>";
else
cout << number_result;
cout << "\n";
}
void
test_enclosed_fail()
{
using namespace std;
using ::BOOST_SPIRIT_CLASSIC_NS::if_p;
using ::BOOST_SPIRIT_CLASSIC_NS::str_p;
using ::BOOST_SPIRIT_CLASSIC_NS::nothing_p;
cout << "\nfail enclosed parser:\n";
const char *p = "abc";
::BOOST_SPIRIT_CLASSIC_NS::strlit<const char*> success_p = str_p(p);
::BOOST_SPIRIT_CLASSIC_NS::strlit<const char*> fail_p = str_p("xxx");
::BOOST_SPIRIT_CLASSIC_NS::rule<> r = if_p(success_p)[nothing_p];
::BOOST_SPIRIT_CLASSIC_NS::parse_info<> m = ::BOOST_SPIRIT_CLASSIC_NS::parse(p, r);
if (m.full) {
cout << "FAILED: if --> match" << endl;
++error_count;
} else {
cout << "PASSED: if --> no_match" << endl;
}
r = if_p(fail_p)[success_p].else_p[nothing_p];
m = ::BOOST_SPIRIT_CLASSIC_NS::parse(p, r);
if (m.full) {
cout << "FAILED: else --> match" << endl;
++error_count;
} else {
cout << "PASSED: else --> no_match" << endl;
}
}
int
main()
{
using namespace std;
using ::BOOST_SPIRIT_CLASSIC_NS::if_p;
using ::BOOST_SPIRIT_CLASSIC_NS::uint_p;
using ::BOOST_SPIRIT_CLASSIC_NS::oct_p;
using ::BOOST_SPIRIT_CLASSIC_NS::hex_p;
using ::BOOST_SPIRIT_CLASSIC_NS::str_p;
using ::BOOST_SPIRIT_CLASSIC_NS::ch_p;
using ::BOOST_SPIRIT_CLASSIC_NS::assign_a;
cout << "/////////////////////////////////////////////////////////\n";
cout << "\n";
cout << " if_p test\n";
cout << "\n";
cout << "/////////////////////////////////////////////////////////\n";
cout << "\n";
bool as_hex;
#if qDebug
BOOST_SPIRIT_DEBUG_RULE(hex_prefix);
BOOST_SPIRIT_DEBUG_RULE(hex_rule);
BOOST_SPIRIT_DEBUG_RULE(oct_prefix);
BOOST_SPIRIT_DEBUG_RULE(oct_rule);
BOOST_SPIRIT_DEBUG_RULE(dec_rule);
BOOST_SPIRIT_DEBUG_RULE(auto_number_rule);
BOOST_SPIRIT_DEBUG_RULE(hex_or_dec_number_rule);
#endif
hex_prefix = str_p("0x");
oct_prefix = ch_p('0');
hex_rule = hex_p[assign_a(number_result)];
oct_rule = oct_p[assign_a(number_result)];
dec_rule = uint_p[assign_a(number_result)];
auto_number_rule =
if_p(hex_prefix)
[hex_rule]
.else_p
[
if_p(::BOOST_SPIRIT_CLASSIC_NS::eps_p(oct_prefix))
[oct_rule]
.else_p
[dec_rule]
];
hex_or_dec_number_rule =
if_p(local::var(as_hex))[hex_prefix>>hex_rule].else_p[dec_rule];
cout << "auto:\n";
test_number("", kError, auto_number_rule);
test_number("0", 0, auto_number_rule);
test_number("1", 1, auto_number_rule);
test_number("00", 0, auto_number_rule);
test_number("0x", kError, auto_number_rule);
test_number("0x0", 0, auto_number_rule);
test_number("0755", 493, auto_number_rule);
test_number("0x100", 256, auto_number_rule);
cout << "\ndecimal:\n";
as_hex = false;
test_number("", kError, hex_or_dec_number_rule);
test_number("100", 100, hex_or_dec_number_rule);
test_number("0x100", kError, hex_or_dec_number_rule);
test_number("0xff", kError, hex_or_dec_number_rule);
cout << "\nhexadecimal:\n";
as_hex = true;
test_number("", kError, hex_or_dec_number_rule);
test_number("0x100", 256, hex_or_dec_number_rule);
test_number("0xff", 255, hex_or_dec_number_rule);
//////////////////////////////////
// tests for if_p without else-parser
cout << "\nno-else:\n";
rule_t r = if_p(::BOOST_SPIRIT_CLASSIC_NS::eps_p('0'))[oct_rule];
test_number("0", 0, r);
++test_count;
::BOOST_SPIRIT_CLASSIC_NS::parse_info<> m = ::BOOST_SPIRIT_CLASSIC_NS::parse("", r);
if (!m.hit || !m.full || m.length!=0)
{
std::cout << "FAILED: \"\" ==> <error>\n";
++error_count;
}
else
std::cout << "PASSED: \"\" ==> <empty match>\n";
++test_count;
m = ::BOOST_SPIRIT_CLASSIC_NS::parse("junk", r);
if (!m.hit || m.full || m.length!=0)
{
std::cout << "FAILED: \"junk\" ==> <error>\n";
++error_count;
}
else
std::cout << "PASSED: \"junk\" ==> <empty match>\n";
test_enclosed_fail();
//////////////////////////////////
// report results
std::cout << "\n ";
if (error_count==0)
cout << "All " << test_count << " if_p-tests passed.\n"
<< "Test concluded successfully\n";
else
cout << error_count << " of " << test_count << " if_p-tests failed\n"
<< "Test failed\n";
return error_count!=0;
}
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