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* ERM parser improvements, it should be GCC-compatible now

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This commit is contained in:
mateuszb 2011-03-24 22:05:08 +00:00
parent fca2b5da7a
commit 31b4906daa
1 changed files with 93 additions and 67 deletions
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160
lib/ERMParser.cpp
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@ -19,12 +19,14 @@ namespace phoenix = boost::phoenix;
//Any sufficiently complicated C or Fortran program contains an ad hoc, informally-specified,
//bug-ridden, slow implementation of half of Common Lisp.
//actually these macros help in dealing with boost::variant
#define BEGIN_TYPE_CASE(UN) struct UN : boost::static_visitor<> \
{
#define FOR_TYPE(TYPE, VAR) void operator()(TYPE const& VAR) const
#define DO_TYPE_CASE(UN, VAR) };boost::apply_visitor(UN(), VAR);
#define DO_TYPE_CASE(UN, VAR) } ___UN; boost::apply_visitor(___UN, VAR);
@ -97,7 +99,7 @@ namespace ERM
struct conditionT
{
enum ECondType{AND = 0, OR, XOR, LAST} ctype;
char ctype;
std::string cond;
conditionNodeT rhs;
};
@ -165,6 +167,18 @@ namespace ERM
//console printer
struct UNT : boost::static_visitor<>
{
void operator()(int const& val) const
{
tlog2 << val << " ";
}
void operator()(std::string const& str) const
{
tlog2 << str << " ";
}
};
void identifierPrinter(const boost::optional<identifierT> & id)
{
if(id.is_initialized())
@ -172,7 +186,15 @@ namespace ERM
tlog2 << "identifier: ";
BOOST_FOREACH(iexpT x, *id)
{
tlog2 << "\\" << x.varsym << x.val;
tlog2 << "\\";
if(x.varsym.is_initialized())
{
tlog2 << x.varsym.get() << " ";
}
if(x.val.is_initialized())
{
boost::apply_visitor(UNT(), x.val.get());
}
}
}
}
@ -180,75 +202,77 @@ namespace ERM
void conditionPrinter(const boost::optional<conditionT> & cond)
{
if(cond.is_initialized())
tlog2 << " condition: " << *cond;
{
conditionT condp = cond.get();
tlog2 << " condition: " << condp.cond << " cond type: " << condp.ctype << " rhs:";
//recursive call
if(condp.rhs.is_initialized())
{
boost::optional<conditionT> rhsc = condp.rhs.get().get();
conditionPrinter(rhsc);
}
}
}
struct ERMprinter : boost::static_visitor<>
struct UN2 : boost::static_visitor<>
{
void operator()(triggerT const& trig) const
{
tlog2 << "trigger: " << trig.name;
identifierPrinter(trig.identifier);
conditionPrinter(trig.condition);
}
void operator()(instructionT const& trig) const
{
tlog2 << "instruction: " << trig.name;
identifierPrinter(trig.identifier);
conditionPrinter(trig.condition);
tlog2 << " body items: ";
// BOOST_FOREACH(bodyItem bi, trig.body)
// {
// tlog2 << " " << bi;
// }
}
void operator()(receiverT const& trig) const
{
tlog2 << "receiver: " << trig.name;
identifierPrinter(trig.identifier);
conditionPrinter(trig.condition);
}
void operator()(postOBtriggerT const& trig) const
{
tlog2 << "post OB trigger; ";
identifierPrinter(trig.identifier);
conditionPrinter(trig.condition);
}
};
struct UN : boost::static_visitor<>
{
void operator()(commandT const& cmd) const
{
UN2 un;
boost::apply_visitor(un, cmd.cmd);
std::cout << "Line comment: " << cmd.comment << std::endl;
}
void operator()(std::string const& nothing) const
void operator()(std::string const& comment) const
{
//tlog2 << "comment line" << std::endl;
}
void operator()(qi::unused_type const& nothing) const
{
//tlog2 << "Empty line" << std::endl;
}
};
void printLineAST(const lineT & ast)
{
tlog2 << "";
BEGIN_TYPE_CASE(psa)
FOR_TYPE(commandT, cmd)
{
BEGIN_TYPE_CASE(cmt)
FOR_TYPE(triggerT, trig)
{
tlog2 << "trigger: " << trig.name;
identifierPrinter(trig.identifier);
conditionPrinter(trig.condition);
}
FOR_TYPE(instructionT, trig)
{
tlog2 << "instruction: " << trig.name;
identifierPrinter(trig.identifier);
conditionPrinter(trig.condition);
tlog2 << " body items: ";
BOOST_FOREACH(bodyItem bi, trig.body)
{
tlog2 << " " << bi;
}
}
FOR_TYPE(receiverT, trig)
{
tlog2 << "receiver: " << trig.name;
identifierPrinter(trig.identifier);
conditionPrinter(trig.condition);
}
FOR_TYPE(postOBtriggerT, trig)
{
tlog2 << "post OB trigger; ";
identifierPrinter(trig.identifier);
conditionPrinter(trig.condition);
}
DO_TYPE_CASE(cmt, cmd.cmd);
std::cout << "Line comment: " << cmd.comment << std::endl;
}
FOR_TYPE(std::string, comment)
{
}
FOR_TYPE(qi::unused_type, nothing)
{
}
DO_TYPE_CASE(psa, ast);
UN zm = UN();
boost::apply_visitor(zm, ast);
}
}
@ -267,6 +291,7 @@ BOOST_FUSION_ADAPT_STRUCT(
BOOST_FUSION_ADAPT_STRUCT(
ERM::conditionT,
(char, ctype)
(std::string, cond)
(ERM::conditionNodeT, rhs)
)
@ -314,7 +339,8 @@ namespace ERM
cmdName %= qi::repeat(2)[qi::char_];
identifier %= (iexp % qi::lit('/'));
condition %= (qi::lit('&') | qi::lit('|') | qi::lit('X') | qi::lit('/')) > *qi::char_("0-9a-zA-Z<>=-") > -condition;
condition %= qi::char_("&|X/") > *qi::char_("0-9a-zA-Z<>=-") > -condition;
trigger %= cmdName >> -identifier >> -condition > qi::lit(";"); /////
string %= qi::lexeme['^' >> *(qi::char_ - '^') >> '^'];
@ -394,15 +420,15 @@ void ERMParser::parseLine( std::string line )
ERM::ERM_grammar<std::string::const_iterator> ERMgrammar;
ERM::lineT AST;
// bool r = qi::parse(beg, end, ERMgrammar, AST);
// if(!r || beg != end)
// {
// tlog1 << "Parse error for line " << line << std::endl;
// tlog1 << "\tCannot parse: " << std::string(beg, end) << std::endl;
// }
// else
// {
// //parsing succeeded
// ERM::printLineAST(AST);
// }
bool r = qi::parse(beg, end, ERMgrammar, AST);
if(!r || beg != end)
{
tlog1 << "Parse error for line " << line << std::endl;
tlog1 << "\tCannot parse: " << std::string(beg, end) << std::endl;
}
else
{
//parsing succeeded
ERM::printLineAST(AST);
}
}