main_c.cpp

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/*
 * Copyright 2023 Blue Brain Project, EPFL.
 * See the top-level LICENSE file for details.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
 
#include <sstream>
 
#include "config/config.h"
#include "lexer/c11_lexer.hpp"
#include "parser/c11_driver.hpp"
#include "utils/logger.hpp"
 
// CLI11 includes Windows specific headers with macros that will interfere with the lexer, include
// it last.
#include <CLI/CLI.hpp>
 
/**
 * \file
 * \brief Example of standalone lexer program for C code
 *
 * This example demonstrate use of CLexer and CDriver classes
 * to scan arbitrary C code.
 */
 
using namespace nmodl;
using Token = parser::CParser::token;
 
void scan_c_code(std::istream& in) {
    nmodl::parser::CDriver driver;
    nmodl::parser::CLexer scanner(driver, &in);
 
    /// parse C file and print token until EOF
    while (true) {
        auto sym = scanner.next_token();
        auto token_type = sym.type_get();
        if (token_type == parser::CParser::by_type(Token::END).type_get()) {
            break;
        }
        std::cout << sym.value.as<std::string>() << std::endl;
    }
}
 
 
int main(int argc, const char* argv[]) {
    CLI::App app{fmt::format("C-Lexer : Standalone Lexer for C Code({})", Version::to_string())};
 
    std::vector<std::string> c_files;
    std::vector<std::string> c_codes;
 
    app.add_option("file", c_files, "One or more C files to process")->check(CLI::ExistingFile);
    app.add_option("--text", c_codes, "One or more C code as text");
 
    CLI11_PARSE(app, argc, argv);
 
    for (const auto& file: c_files) {
        nmodl::logger->info("Processing {}", file);
        std::ifstream in(file);
        scan_c_code(in);
    }
 
    for (const auto& code: c_codes) {
        nmodl::logger->info("Processing {}", code);
        std::istringstream in(code);
        scan_c_code(in);
    }
 
    return 0;
}