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#include "coolparser.h"
#include "cooldefaultvisitor.h"
#include "decoder.h"
#include <cstdlib>
#include <iostream>
#include <fstream>
using namespace cool;
static void usage(char const* argv0);
static bool parse_file(char const* filename);
void print_token_environment(Parser* parser)
{
static bool done = false;
if (done)
return; // don't print with each call when going up the error path
decoder dec(parser->tokenStream, parser);
std::size_t current_index = parser->tokenStream->index() - 1;
for (std::size_t i = current_index - 5; i < current_index + 5; ++i)
{
if (i < 0 || i >= parser->tokenStream->size())
continue;
if (i == current_index)
std::cerr << ">>";
std::cerr << qPrintable(dec.decode_id(i)); // print out currently processed token
if (i == current_index)
std::cerr << "<<";
std::cerr << " ";
}
std::cerr << std::endl;
done = true;
}
int main(int argc, char *argv[])
{
if (argc == 1)
{
usage(argv[0]);
exit(EXIT_FAILURE);
}
while (char const *arg = *++argv)
{
/*if (!strncmp(arg, "--option=", 9))
{
char const* option = arg + 9;
std::cerr << "--option=" << option
<< " has been given!" << std::endl;
}
else */
if (!strncmp(arg, "--", 2))
{
std::cerr << "Unknown option: " << arg << std::endl;
usage(argv[0]);
exit(EXIT_FAILURE);
}
else if(!parse_file(arg))
{
exit(EXIT_FAILURE);
}
}
return EXIT_SUCCESS;
}
bool parse_file(char const *filename)
{
char *contents;
std::ifstream filestr(filename);
if (filestr.is_open())
{
std::filebuf *pbuf;
long size;
// get pointer to associated buffer object
pbuf = filestr.rdbuf();
// get file size using buffer's members
size = pbuf->pubseekoff(0,std::ios::end,std::ios::in);
pbuf->pubseekpos(0,std::ios::in);
// allocate memory to contain file data
contents = new char[size+1];
// get file data
pbuf->sgetn(contents, size);
contents[size] = '\0';
filestr.close();
}
else
{
std::cerr << filename << ": file not found" << std::endl;
return false;
}
KDevPG::TokenStream token_stream;
Parser::memoryPoolType memory_pool;
// 0) setup
Parser cool_parser;
cool_parser.setTokenStream(&token_stream);
cool_parser.setMemoryPool(&memory_pool);
// 1) tokenize
cool_parser.tokenize(contents);
// 2) parse
ProgramAst *ast = 0;
bool matched = cool_parser.parseProgram(&ast);
if (matched)
{
DefaultVisitor v;
v.visitNode(ast);
}
else
{
cool_parser.expectedSymbol(AstNode::ProgramKind, QStringLiteral("program")); // ### remove me
}
delete[] contents;
return matched;
}
static void usage(char const* argv0)
{
std::cerr << "usage: " << argv0 /*<< " [options]"*/ << " file1.cl [file2.cl...]"
<< std::endl; /*<< std::endl
<< "Options:" << std::endl
<< " --option=BLA: Do BLAH while parsing." << std::endl
<< " BLAH is one of FOO, BAR or KUNG, default is FOO."
<< std::endl;
*/
}
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