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#include "Config.hh"
#include <boost/python.hpp>
#include "Functional.hh"
#include "MMACdb.hh"
#include "PreClean.hh"
#include "Cleanup.hh"
#include "Parser.hh"
#include "Kernel.hh"
#include "DisplayMMA.hh"
#include "algorithms/substitute.hh"
using namespace cadabra;
WSLINK MMA::lp = 0;
WSEnvironment MMA::stdenv = 0;
//#define DEBUG 1
Ex::iterator MMA::apply_mma(const Kernel& kernel, Ex& ex, Ex::iterator& it, const std::vector<std::string>& wrap,
std::vector<std::string> args, const std::string& method)
{
// We first need to print the sub-expression using DisplaySympy,
// optionally with the head wrapped around it and the args added
// (if present).
std::ostringstream str;
for(size_t i=0; i<wrap.size(); ++i) {
str << wrap[i] << "[";
}
DisplayMMA ds(kernel, ex, true);
ds.output(str, it);
if(wrap.size()>0)
if(args.size()>0)
for(size_t i=0; i<args.size(); ++i)
str << ", " << args[i];
for(size_t i=1; i<wrap.size(); ++i)
str << "]";
str << method;
if(wrap.size()>0)
str << "]";
// We then execute the expression in Python.
//ex.print_recursive_treeform(std::cerr, it);
#ifdef DEBUG
std::cerr << "feeding " << str.str() << std::endl;
#endif
std::string result;
// ---------------------
setup_link();
WSPutFunction(lp, "EvaluatePacket", 1L);
WSPutFunction(lp, "ToString", 1L);
WSPutFunction(lp, "FullForm", 1L);
WSPutFunction(lp, "ToExpression", 1L);
WSPutUTF8String(lp, (const unsigned char *)str.str().c_str(), str.str().size());
WSEndPacket(lp);
WSFlush(lp);
// std::cerr << "flushed" << std::endl;
int pkt=0;
while( (pkt = WSNextPacket(lp), pkt) && pkt != RETURNPKT ) {
// std::cerr << "received packet " << pkt << std::endl;
WSNewPacket(lp);
if (WSError(lp)) {
std::cerr << "error" << std::endl;
}
}
// std::cerr << "packet now " << pkt << std::endl;
const char *out;
if(! WSGetString(lp, &out)) {
throw InternalError("Unable to read from WSTP link");
}
else {
result=out;
WSReleaseString(lp, out);
if(result=="$Failed") {
throw RuntimeException("Mathematica failed to handle expression.");
}
}
// -------------------------------
// After that, we construct a new sub-expression from this string by using our
// own parser, and replace the original.
#ifdef DEBUG
std::cerr << "result: " << result << std::endl;
#endif
result = ds.preparse_import(result);
#ifdef DEBUG
std::cerr << "preparsed: " << result << std::endl;
#endif
auto ptr = std::make_shared<Ex>();
cadabra::Parser parser(ptr);
std::stringstream istr(result);
istr >> parser;
pre_clean_dispatch_deep(kernel, *parser.tree);
cleanup_dispatch_deep(kernel, *parser.tree);
//parser.tree->print_recursive_treeform(std::cerr, parser.tree->begin());
#ifdef DEBUG
std::cerr << "cleaned up: " << *parser.tree << std::endl;
#endif
ds.import(*parser.tree);
#ifdef DEBUG
std::cerr << "imported: " << *parser.tree << std::endl;
#endif
pre_clean_dispatch_deep(kernel, *parser.tree);
cleanup_dispatch_deep(kernel, *parser.tree);
Ex::iterator first=parser.tree->begin();
// std::cerr << "reparsed " << Ex(first) << std::endl;
it = ex.move_ontop(it, first);
return it;
}
void MMA::setup_link()
{
if(lp!=0) return; // already setup
char argvi[4][512] = { "-linkname", Mathematica_KERNEL_EXECUTABLE " -mathlink", "-linkmode", "launch" };
char *argv[4];
for (size_t i=0; i<4; ++i)
argv[i] = argvi[i];
int argc = 4;
int errno;
stdenv = WSInitialize((WSEnvironmentParameter)0);
if(stdenv==0)
throw InternalError("Failed to initialise WSTP");
// std::cerr << "initialised" << std::endl;
try {
lp = WSOpenArgcArgv(stdenv, argc, argv, &errno);
if(lp==0 || errno!=WSEOK) {
// std::cerr << errno << ", " << WSErrorMessage(lp) << ";" << std::endl;
lp=0;
WSDeinitialize(stdenv);
throw InternalError("Failed to open Mathematica link");
}
}
catch(std::exception& ex) {
lp=0;
WSDeinitialize(stdenv);
throw InternalError("Failed to open Mathematica link");
}
// std::cerr << "loopback link open" << std::endl;
WSActivate(lp);
}
void MMA::teardown_link()
{
if(lp!=0) {
WSClose(lp);
WSDeinitialize(stdenv);
lp=0;
}
}
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