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/* * simplecpp - A simple and high-fidelity C/C++ preprocessor library * Copyright (C) 2016-2023 simplecpp team */ #include "simplecpp.h" #include #include #include #include #include #include #include int main(int argc, char **argv) { bool error = false; const char *filename = nullptr; bool precompile = false; bool use_istream = false; // Settings.. simplecpp::DUI dui; bool quiet = false; bool error_only = false; for (int i = 1; i < argc; i++) { const char * const arg = argv[i]; if (*arg == '-') { bool found = false; const char c = arg[1]; switch (c) { case 'D': { // define symbol const char * const value = arg[2] ? (argv[i] + 2) : argv[++i]; dui.defines.push_back(value); found = true; break; } case 'U': { // undefine symbol const char * const value = arg[2] ? (argv[i] + 2) : argv[++i]; dui.undefined.insert(value); found = true; break; } case 'I': { // include path const char * const value = arg[2] ? (argv[i] + 2) : argv[++i]; dui.includePaths.push_back(value); found = true; break; } case 'i': if (std::strncmp(arg, "-include=",9)==0) { dui.includes.push_back(arg+9); found = true; } else if (std::strncmp(arg, "-is",3)==0) { use_istream = true; found = true; } break; case 's': if (std::strncmp(arg, "-std=",5)==0) { dui.std = arg + 5; found = true; } break; case 'q': quiet = true; found = true; break; case 'p': if (std::strcmp(arg, "-pc")==0) { precompile = true; found = true; } break; case 'e': error_only = true; found = true; break; } if (!found) { std::cout << "error: option '" << arg << "' is unknown." << std::endl; error = true; } } else if (filename) { std::cout << "error: multiple filenames specified" << std::endl; std::exit(1); } else { filename = arg; } } if (error) std::exit(1); if (quiet && error_only) { std::cout << "error: -e cannot be used in conjunction with -q" << std::endl; std::exit(1); } if (!filename) { std::cout << "Syntax:" << std::endl; std::cout << "simplecpp [options] filename" << std::endl; std::cout << " -DNAME Define NAME." << std::endl; std::cout << " -IPATH Include path." << std::endl; std::cout << " -include=FILE Include FILE." << std::endl; std::cout << " -UNAME Undefine NAME." << std::endl; std::cout << " -std=STD Specify standard." << std::endl; std::cout << " -q Quiet mode (no output)." << std::endl; std::cout << " -is Use std::istream interface." << std::endl; std::cout << " -e Output errors only." << std::endl; std::cout << " -pc Precompile header." << std::endl; std::exit(0); } dui.removeComments = true; // Perform preprocessing simplecpp::OutputList outputList; std::vector<:string> files; simplecpp::TokenList *rawtokens; if (use_istream) { std::ifstream f(filename); if (!f.is_open()) { std::cout << "error: could not open file '" << filename << "'" << std::endl; std::exit(1); } rawtokens = new simplecpp::TokenList(f, files,filename,&outputList); } else { rawtokens = new simplecpp::TokenList(filename,files,&outputList); } rawtokens->removeComments(); simplecpp::TokenList outputTokens(files); if (precompile) { std::cout << simplecpp::precompileHeader(*rawtokens, files, dui, &outputList); } else { std::map<:string simplecpp::tokenlist> filedata; simplecpp::preprocess(outputTokens, *rawtokens, files, filedata, dui, &outputList); simplecpp::cleanup(filedata); } delete rawtokens; rawtokens = nullptr; // Output if (!quiet) { if (!error_only && !precompile) std::cout << outputTokens.stringify() << std::endl; for (const simplecpp::Output &output : outputList) { std::cerr << output.location.file() << ':' << output.location.line << ": "; switch (output.type) { case simplecpp::Output::ERROR: std::cerr << "#error: "; break; case simplecpp::Output::WARNING: std::cerr << "#warning: "; break; case simplecpp::Output::MISSING_HEADER: std::cerr << "missing header: "; break; case simplecpp::Output::INCLUDE_NESTED_TOO_DEEPLY: std::cerr << "include nested too deeply: "; break; case simplecpp::Output::SYNTAX_ERROR: std::cerr << "syntax error: "; break; case simplecpp::Output::PORTABILITY_BACKSLASH: std::cerr << "portability: "; break; case simplecpp::Output::UNHANDLED_CHAR_ERROR: std::cerr << "unhandled char error: "; break; case simplecpp::Output::EXPLICIT_INCLUDE_NOT_FOUND: std::cerr << "explicit include not found: "; break; case simplecpp::Output::FILE_NOT_FOUND: std::cerr << "file not found: "; break; case simplecpp::Output::DUI_ERROR: std::cerr << "dui error: "; break; } std::cerr << output.msg << std::endl; } } return 0; }