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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#ifndef IXION_FORMULA_PARSER_CPP
#define IXION_FORMULA_PARSER_CPP
#include <string>
#include <vector>
#include <iostream>
#include <boost/program_options.hpp>
#include "ixion/formula.hpp"
#include "ixion/model_context.hpp"
#include "ixion/formula_name_resolver.hpp"
#include "ixion/config.hpp"
using std::cout;
using std::endl;
std::vector<std::string> parse_sheet_names(const std::string& s)
{
std::vector<std::string> names;
const char* p = s.data();
const char* p_end = p + s.size();
const char* p0 = nullptr;
for (; p != p_end; ++p)
{
if (!p0)
p0 = p;
if (*p == ',')
{
size_t n = std::distance(p0, p);
names.emplace_back(p0, n);
p0 = nullptr;
}
}
if (p0)
{
size_t n = std::distance(p0, p);
names.emplace_back(p0, n);
}
return names;
}
void tokenize_formula(const std::string& formula, const std::string& sheets)
{
using namespace ixion;
model_context cxt;
for (const std::string& name : parse_sheet_names(sheets))
cxt.append_sheet(name);
std::unique_ptr<formula_name_resolver> resolver =
formula_name_resolver::get(formula_name_resolver_t::excel_a1, &cxt);
config cfg = cxt.get_config();
cfg.sep_function_arg = ',';
cxt.set_config(cfg);
abs_address_t pos;
formula_tokens_t tokens = parse_formula_string(cxt, pos, *resolver, formula);
cout << "* original formula string: " << formula << endl;
std::string normalized = print_formula_tokens(cxt, pos, *resolver, tokens);
cout << "* normalized formula string: " << normalized << endl;
cout << "* individual tokens:" << endl;
for (const auto& t : tokens)
cout << " * " << t << endl;
}
int main (int argc, char** argv)
{
namespace po = ::boost::program_options;
po::options_description desc("Allowed options");
desc.add_options()
("help,h", "print this help.")
("sheets", po::value<std::string>(), "Sheet names.");
po::options_description hidden("Hidden options");
hidden.add_options()
("formula-expression", po::value<std::string>(), "formula expression");
po::options_description cmd_opt;
cmd_opt.add(desc).add(hidden);
po::positional_options_description po_desc;
po_desc.add("formula-expression", -1);
po::variables_map vm;
try
{
po::store(
po::command_line_parser(argc, argv).options(cmd_opt).positional(po_desc).run(), vm);
po::notify(vm);
}
catch (const std::exception& e)
{
// Unknown options.
cout << e.what() << endl;
cout << desc;
return EXIT_FAILURE;
}
auto print_help = [desc]()
{
cout << "Usage: ixion-formula-tokenizer [options] FORMULA_EXPRESSION" << endl
<< endl
<< desc;
};
if (vm.count("help"))
{
print_help();
return EXIT_SUCCESS;
}
if (!vm.count("formula-expression"))
{
cout << "formula expression is not given." << endl;
print_help();
return EXIT_FAILURE;
}
try
{
std::string formula = vm["formula-expression"].as<std::string>();
std::string sheets = vm.count("sheets") ? vm["sheets"].as<std::string>() : std::string();
tokenize_formula(formula, sheets);
}
catch (const std::exception& e)
{
cout << "Failed to parse formula expression: " << e.what() << endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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