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+/*=============================================================================
+ Boost.Wave: A Standard compliant C++ preprocessor library
+
+ http://www.boost.org/
+
+ Copyright (c) 2001-2012 Hartmut Kaiser. Distributed under the Boost
+ Software License, Version 1.0. (See accompanying file
+ LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+=============================================================================*/
+
+#define BOOST_WAVE_SERIALIZATION 0 // enable serialization
+#define BOOST_WAVE_BINARY_SERIALIZATION 0 // use binary archives
+#define BOOST_WAVE_XML_SERIALIZATION 1 // use XML archives
+
+#include "cpp.hpp" // global configuration
+
+///////////////////////////////////////////////////////////////////////////////
+// Include additional Boost libraries
+#include <boost/filesystem/path.hpp>
+#include <boost/filesystem/convenience.hpp>
+#include <boost/filesystem/fstream.hpp>
+#include <boost/timer.hpp>
+#include <boost/any.hpp>
+#include <boost/algorithm/cxx11/any_of.hpp>
+#include <boost/algorithm/string/join.hpp>
+#include <boost/range/algorithm/find.hpp>
+#include <boost/range/end.hpp>
+#include <boost/foreach.hpp>
+
+///////////////////////////////////////////////////////////////////////////////
+// Include Wave itself
+#include <boost/wave.hpp>
+
+///////////////////////////////////////////////////////////////////////////////
+// Include the lexer related stuff
+#include <boost/wave/cpplexer/cpp_lex_token.hpp> // token type
+#include <boost/wave/cpplexer/cpp_lex_iterator.hpp> // lexer type
+
+///////////////////////////////////////////////////////////////////////////////
+// Include serialization support, if requested
+#if BOOST_WAVE_SERIALIZATION != 0
+#include <boost/serialization/serialization.hpp>
+#if BOOST_WAVE_BINARY_SERIALIZATION != 0
+#include <boost/archive/binary_iarchive.hpp>
+#include <boost/archive/binary_oarchive.hpp>
+typedef boost::archive::binary_iarchive iarchive;
+typedef boost::archive::binary_oarchive oarchive;
+#elif BOOST_WAVE_XML_SERIALIZATION != 0
+#include <boost/archive/xml_iarchive.hpp>
+#include <boost/archive/xml_oarchive.hpp>
+typedef boost::archive::xml_iarchive iarchive;
+typedef boost::archive::xml_oarchive oarchive;
+#else
+#include <boost/archive/text_iarchive.hpp>
+#include <boost/archive/text_oarchive.hpp>
+typedef boost::archive::text_iarchive iarchive;
+typedef boost::archive::text_oarchive oarchive;
+#endif
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// Include the context policies to use
+#include "trace_macro_expansion.hpp"
+
+///////////////////////////////////////////////////////////////////////////////
+// Include lexer specifics, import lexer names
+#if BOOST_WAVE_SEPARATE_LEXER_INSTANTIATION == 0
+#include <boost/wave/cpplexer/re2clex/cpp_re2c_lexer.hpp>
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// Include the grammar definitions, if these shouldn't be compiled separately
+// (ATTENTION: _very_ large compilation times!)
+#if BOOST_WAVE_SEPARATE_GRAMMAR_INSTANTIATION == 0
+#include <boost/wave/grammars/cpp_intlit_grammar.hpp>
+#include <boost/wave/grammars/cpp_chlit_grammar.hpp>
+#include <boost/wave/grammars/cpp_grammar.hpp>
+#include <boost/wave/grammars/cpp_expression_grammar.hpp>
+#include <boost/wave/grammars/cpp_predef_macros_grammar.hpp>
+#include <boost/wave/grammars/cpp_defined_grammar.hpp>
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// Import required names
+using namespace boost::spirit::classic;
+
+using std::pair;
+using std::vector;
+using std::getline;
+using boost::filesystem::ofstream;
+using boost::filesystem::ifstream;
+using std::cout;
+using std::cerr;
+using std::endl;
+using std::ostream;
+using std::istreambuf_iterator;
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// This application uses the lex_iterator and lex_token types predefined
+// with the Wave library, but it is possible to use your own types.
+//
+// You may want to have a look at the other samples to see how this is
+// possible to achieve.
+ typedef boost::wave::cpplexer::lex_token<> token_type;
+ typedef boost::wave::cpplexer::lex_iterator<token_type>
+ lex_iterator_type;
+
+// The C++ preprocessor iterators shouldn't be constructed directly. They
+// are to be generated through a boost::wave::context<> object. This
+// boost::wave::context object is additionally to be used to initialize and
+// define different parameters of the actual preprocessing.
+ typedef boost::wave::context<
+ std::string::iterator, lex_iterator_type,
+ boost::wave::iteration_context_policies::load_file_to_string,
+ trace_macro_expansion<token_type> >
+ context_type;
+
+///////////////////////////////////////////////////////////////////////////////
+// print the current version
+std::string get_version()
+{
+ std::string version (context_type::get_version_string());
+ version = version.substr(1, version.size()-2); // strip quotes
+ version += std::string(" (" CPP_VERSION_DATE_STR ")"); // add date
+ return version;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// print the current version for interactive sessions
+int print_interactive_version()
+{
+ cout << "Wave: A Standard conformant C++ preprocessor based on the Boost.Wave library" << endl;
+ cout << "Version: " << get_version() << endl;
+ return 0;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// print the copyright statement
+int print_copyright()
+{
+ char const *copyright[] = {
+ "",
+ "Wave: A Standard conformant C++ preprocessor based on the Boost.Wave library",
+ "http://www.boost.org/",
+ "",
+ "Copyright (c) 2001-2012 Hartmut Kaiser, Distributed under the Boost",
+ "Software License, Version 1.0. (See accompanying file",
+ "LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)",
+ 0
+ };
+
+ for (int i = 0; 0 != copyright[i]; ++i)
+ cout << copyright[i] << endl;
+
+ return 0; // exit app
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// forward declarations only
+namespace cmd_line_utils
+{
+ class include_paths;
+}
+
+namespace boost { namespace program_options {
+
+ void validate(boost::any &v, std::vector<std::string> const &s,
+ cmd_line_utils::include_paths *, long);
+
+}} // boost::program_options
+
+///////////////////////////////////////////////////////////////////////////////
+#include <boost/program_options.hpp>
+
+namespace po = boost::program_options;
+namespace fs = boost::filesystem;
+
+///////////////////////////////////////////////////////////////////////////////
+namespace cmd_line_utils {
+ // Additional command line parser which interprets '@something' as an
+ // option "config-file" with the value "something".
+ inline pair<std::string, std::string>
+ at_option_parser(std::string const&s)
+ {
+ if ('@' == s[0])
+ return std::make_pair(std::string("config-file"), s.substr(1));
+ else
+ return pair<std::string, std::string>();
+ }
+
+ // class, which keeps include file information read from the command line
+ class include_paths {
+ public:
+ include_paths() : seen_separator(false) {}
+
+ vector<std::string> paths; // stores user paths
+ vector<std::string> syspaths; // stores system paths
+ bool seen_separator; // command line contains a '-I-' option
+
+ // Function which validates additional tokens from command line.
+ static void
+ validate(boost::any &v, vector<std::string> const &tokens)
+ {
+ if (v.empty())
+ v = boost::any(include_paths());
+
+ include_paths *p = boost::any_cast<include_paths>(&v);
+
+ BOOST_ASSERT(p);
+ // Assume only one path per '-I' occurrence.
+ std::string const& t = po::validators::get_single_string(tokens);
+ if (t == "-") {
+ // found -I- option, so switch behaviour
+ p->seen_separator = true;
+ }
+ else if (p->seen_separator) {
+ // store this path as a system path
+ p->syspaths.push_back(t);
+ }
+ else {
+ // store this path as an user path
+ p->paths.push_back(t);
+ }
+ }
+ };
+
+ // Read all options from a given config file, parse and add them to the
+ // given variables_map
+ bool read_config_file_options(std::string const &filename,
+ po::options_description const &desc, po::variables_map &vm,
+ bool may_fail = false)
+ {
+ ifstream ifs(filename.c_str());
+
+ if (!ifs.is_open()) {
+ if (!may_fail) {
+ cerr << filename
+ << ": command line warning: config file not found"
+ << endl;
+ }
+ return false;
+ }
+
+ vector<std::string> options;
+ std::string line;
+
+ while (std::getline(ifs, line)) {
+ // skip empty lines
+ std::string::size_type pos = line.find_first_not_of(" \t");
+ if (pos == std::string::npos)
+ continue;
+
+ // skip comment lines
+ if ('#' != line[pos]) {
+ // strip leading and trailing whitespace
+ std::string::size_type endpos = line.find_last_not_of(" \t");
+ BOOST_ASSERT(endpos != std::string::npos);
+ options.push_back(line.substr(pos, endpos-pos+1));
+ }
+ }
+
+ if (options.size() > 0) {
+ using namespace boost::program_options::command_line_style;
+ po::store(po::command_line_parser(options)
+ .options(desc).style(unix_style).run(), vm);
+ po::notify(vm);
+ }
+ return true;
+ }
+
+ // predicate to extract all positional arguments from the command line
+ struct is_argument {
+ bool operator()(po::option const &opt)
+ {
+ return (opt.position_key == -1) ? true : false;
+ }
+ };
+
+ // trim quotes from path names, if any
+ std::string trim_quotes(std::string const& file)
+ {
+ if (('"' == file[0] || '\'' == file[0]) && file[0] == file[file.size()-1])
+ {
+ return file.substr(1, file.size()-2);
+ }
+ return file;
+ }
+
+///////////////////////////////////////////////////////////////////////////////
+}
+
+///////////////////////////////////////////////////////////////////////////////
+//
+// Special validator overload, which allows to handle the -I- syntax for
+// switching the semantics of an -I option.
+//
+///////////////////////////////////////////////////////////////////////////////
+namespace boost { namespace program_options {
+
+ void validate(boost::any &v, std::vector<std::string> const &s,
+ cmd_line_utils::include_paths *, long)
+ {
+ cmd_line_utils::include_paths::validate(v, s);
+ }
+
+}} // namespace boost::program_options
+
+///////////////////////////////////////////////////////////////////////////////
+namespace {
+
+ class auto_stop_watch : public stop_watch
+ {
+ public:
+ auto_stop_watch(std::ostream &outstrm_)
+ : print_time(false), outstrm(outstrm_)
+ {
+ }
+
+ ~auto_stop_watch()
+ {
+ if (print_time) {
+ outstrm << "Elapsed time: "
+ << this->format_elapsed_time()
+ << std::endl;
+ }
+ }
+
+ void set_print_time(bool print_time_)
+ {
+ print_time = print_time_;
+ }
+
+ private:
+ bool print_time;
+ std::ostream &outstrm;
+ };
+
+ ///////////////////////////////////////////////////////////////////////////
+ inline std::string
+ report_iostate_error(std::ios::iostate state)
+ {
+ BOOST_ASSERT(state & (std::ios::badbit | std::ios::failbit | std::ios::eofbit));
+ std::string result;
+ if (state & std::ios::badbit) {
+ result += " the reported problem was: "
+ "loss of integrity of the stream buffer\n";
+ }
+ if (state & std::ios::failbit) {
+ result += " the reported problem was: "
+ "an operation was not processed correctly\n";
+ }
+ if (state & std::ios::eofbit) {
+ result += " the reported problem was: "
+ "end-of-file while writing to the stream\n";
+ }
+ return result;
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ // Retrieve the position of a macro definition
+ template <typename Context>
+ inline bool
+ get_macro_position(Context &ctx,
+ typename Context::token_type::string_type const& name,
+ typename Context::position_type &pos)
+ {
+ bool has_parameters = false;
+ bool is_predefined = false;
+ std::vector<typename Context::token_type> parameters;
+ typename Context::token_sequence_type definition;
+
+ return ctx.get_macro_definition(name, has_parameters, is_predefined,
+ pos, parameters, definition);
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ // Generate some meaningful error messages
+ template <typename Exception>
+ inline int
+ report_error_message(Exception const &e, bool treat_warnings_as_error)
+ {
+ // default error reporting
+ cerr
+ << e.file_name() << ":" << e.line_no() << ":" << e.column_no()
+ << ": " << e.description() << endl;
+
+ // errors count as one
+ return (treat_warnings_as_error ||
+ e.get_severity() == boost::wave::util::severity_error ||
+ e.get_severity() == boost::wave::util::severity_fatal) ? 1 : 0;
+ }
+
+ template <typename Context>
+ inline int
+ report_error_message(Context &ctx, boost::wave::cpp_exception const &e,
+ bool treat_warnings_as_error)
+ {
+ // default error reporting
+ int result = report_error_message(e, treat_warnings_as_error);
+
+ using boost::wave::preprocess_exception;
+ switch(e.get_errorcode()) {
+ case preprocess_exception::macro_redefinition:
+ {
+ // report the point of the initial macro definition
+ typename Context::position_type pos;
+ if (get_macro_position(ctx, e.get_related_name(), pos)) {
+ cerr
+ << pos << ": "
+ << preprocess_exception::severity_text(e.get_severity())
+ << ": this is the location of the previous definition."
+ << endl;
+ }
+ else {
+ cerr
+ << e.file_name() << ":" << e.line_no() << ":"
+ << e.column_no() << ": "
+ << preprocess_exception::severity_text(e.get_severity())
+ << ": not able to retrieve the location of the previous "
+ << "definition." << endl;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+
+ return result;
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ // Read one logical line of text
+ inline bool
+ read_a_line (std::istream &instream, std::string &instring)
+ {
+ bool eol = true;
+ do {
+ std::string line;
+ std::getline(instream, line);
+ if (instream.rdstate() & std::ios::failbit)
+ return false; // nothing to do
+
+ eol = true;
+ if (line.find_last_of('\\') == line.size()-1)
+ eol = false;
+
+ instring += line + '\n';
+ } while (!eol);
+ return true;
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ // Load and save the internal tables of the wave::context object
+ template <typename Context>
+ inline void
+ load_state(po::variables_map const &vm, Context &ctx)
+ {
+#if BOOST_WAVE_SERIALIZATION != 0
+ try {
+ if (vm.count("state") > 0) {
+ fs::path state_file (
+ boost::wave::util::create_path(vm["state"].as<std::string>()));
+ if (state_file == "-")
+ state_file = boost::wave::util::create_path("wave.state");
+
+ std::ios::openmode mode = std::ios::in;
+
+#if BOOST_WAVE_BINARY_SERIALIZATION != 0
+ mode = (std::ios::openmode)(mode | std::ios::binary);
+#endif
+ ifstream ifs (state_file.string().c_str(), mode);
+ if (ifs.is_open()) {
+ using namespace boost::serialization;
+ iarchive ia(ifs);
+ std::string version;
+
+ ia >> make_nvp("version", version); // load version
+ if (version == CPP_VERSION_FULL_STR)
+ ia >> make_nvp("state", ctx); // load the internal tables from disc
+ else {
+ cerr << "wave: detected version mismatch while loading state, state was not loaded." << endl;
+ cerr << " loaded version: " << version << endl;
+ cerr << " expected version: " << CPP_VERSION_FULL_STR << endl;
+ }
+ }
+ }
+ }
+ catch (boost::archive::archive_exception const& e) {
+ cerr << "wave: error while loading state: "
+ << e.what() << endl;
+ }
+ catch (boost::wave::preprocess_exception const& e) {
+ cerr << "wave: error while loading state: "
+ << e.description() << endl;
+ }
+#endif
+ }
+
+ template <typename Context>
+ inline void
+ save_state(po::variables_map const &vm, Context const &ctx)
+ {
+#if BOOST_WAVE_SERIALIZATION != 0
+ try {
+ if (vm.count("state") > 0) {
+ fs::path state_file (boost::wave::util::create_path(
+ vm["state"].as<std::string>()));
+ if (state_file == "-")
+ state_file = boost::wave::util::create_path("wave.state");
+
+ std::ios::openmode mode = std::ios::out;
+
+#if BOOST_WAVE_BINARY_SERIALIZATION != 0
+ mode = (std::ios::openmode)(mode | std::ios::binary);
+#endif
+ ofstream ofs(state_file.string().c_str(), mode);
+ if (!ofs.is_open()) {
+ cerr << "wave: could not open state file for writing: "
+ << state_file.string() << endl;
+ // this is non-fatal
+ }
+ else {
+ using namespace boost::serialization;
+ oarchive oa(ofs);
+ std::string version(CPP_VERSION_FULL_STR);
+ oa << make_nvp("version", version); // write version
+ oa << make_nvp("state", ctx); // write the internal tables to disc
+ }
+ }
+ }
+ catch (boost::archive::archive_exception const& e) {
+ cerr << "wave: error while writing state: "
+ << e.what() << endl;
+ }
+#endif
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ // list all defined macros
+ bool list_macro_names(context_type const& ctx, std::string filename)
+ {
+ // open file for macro names listing
+ ofstream macronames_out;
+ fs::path macronames_file (boost::wave::util::create_path(filename));
+
+ if (macronames_file != "-") {
+ macronames_file = boost::wave::util::complete_path(macronames_file);
+ boost::wave::util::create_directories(
+ boost::wave::util::branch_path(macronames_file));
+ macronames_out.open(macronames_file.string().c_str());
+ if (!macronames_out.is_open()) {
+ cerr << "wave: could not open file for macro name listing: "
+ << macronames_file.string() << endl;
+ return false;
+ }
+ }
+ else {
+ macronames_out.copyfmt(cout);
+ macronames_out.clear(cout.rdstate());
+ static_cast<std::basic_ios<char> &>(macronames_out).rdbuf(cout.rdbuf());
+ }
+
+ // simply list all defined macros and its definitions
+ typedef context_type::const_name_iterator name_iterator;
+ name_iterator end = ctx.macro_names_end();
+ for (name_iterator it = ctx.macro_names_begin(); it != end; ++it)
+ {
+ typedef std::vector<context_type::token_type> parameters_type;
+
+ bool has_pars = false;
+ bool predef = false;
+ context_type::position_type pos;
+ parameters_type pars;
+ context_type::token_sequence_type def;
+
+ if (ctx.get_macro_definition(*it, has_pars, predef, pos, pars, def))
+ {
+ macronames_out << (predef ? "-P" : "-D") << *it;
+ if (has_pars) {
+ // list the parameter names for function style macros
+ macronames_out << "(";
+ parameters_type::const_iterator pend = pars.end();
+ for (parameters_type::const_iterator pit = pars.begin();
+ pit != pend; /**/)
+ {
+ macronames_out << (*pit).get_value();
+ if (++pit != pend)
+ macronames_out << ", ";
+ }
+ macronames_out << ")";
+ }
+ macronames_out << "=";
+
+ // print the macro definition
+ context_type::token_sequence_type::const_iterator dend = def.end();
+ for (context_type::token_sequence_type::const_iterator dit = def.begin();
+ dit != dend; ++dit)
+ {
+ macronames_out << (*dit).get_value();
+ }
+
+ macronames_out << std::endl;
+ }
+ }
+ return true;
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ // list macro invocation counts
+ bool list_macro_counts(context_type const& ctx, std::string filename)
+ {
+ // open file for macro invocation count listing
+ ofstream macrocounts_out;
+ fs::path macrocounts_file (boost::wave::util::create_path(filename));
+
+ if (macrocounts_file != "-") {
+ macrocounts_file = boost::wave::util::complete_path(macrocounts_file);
+ boost::wave::util::create_directories(
+ boost::wave::util::branch_path(macrocounts_file));
+ macrocounts_out.open(macrocounts_file.string().c_str());
+ if (!macrocounts_out.is_open()) {
+ cerr << "wave: could not open file for macro invocation count listing: "
+ << macrocounts_file.string() << endl;
+ return false;
+ }
+ }
+ else {
+ macrocounts_out.copyfmt(cout);
+ macrocounts_out.clear(cout.rdstate());
+ static_cast<std::basic_ios<char> &>(macrocounts_out).rdbuf(cout.rdbuf());
+ }
+
+ // list all expanded macro names and their counts in alphabetical order
+ std::map<std::string, std::size_t> const& counts =
+ ctx.get_hooks().get_macro_counts();
+
+ typedef std::map<std::string, std::size_t>::const_iterator iterator;
+ iterator end = counts.end();
+ for (iterator it = counts.begin(); it != end; ++it)
+ macrocounts_out << (*it).first << "," << (*it).second << std::endl;
+
+ return true;
+ }
+
+ ///////////////////////////////////////////////////////////////////////////
+ // read all of a file into a string
+ std::string read_entire_file(std::istream& instream)
+ {
+ std::string content;
+
+ instream.unsetf(std::ios::skipws);
+
+#if defined(BOOST_NO_TEMPLATED_ITERATOR_CONSTRUCTORS)
+ // this is known to be very slow for large files on some systems
+ copy (std::istream_iterator<char>(instream),
+ std::istream_iterator<char>(),
+ std::inserter(content, content.end()));
+#else
+ content = std::string(std::istreambuf_iterator<char>(instream.rdbuf()),
+ std::istreambuf_iterator<char>());
+#endif
+ return content;
+ }
+} // anonymous namespace
+
+///////////////////////////////////////////////////////////////////////////////
+// do the actual preprocessing
+int
+do_actual_work (std::string file_name, std::istream &instream,
+ po::variables_map const &vm, bool input_is_stdin)
+{
+// current file position is saved for exception handling
+boost::wave::util::file_position_type current_position;
+auto_stop_watch elapsed_time(cerr);
+int error_count = 0;
+const bool treat_warnings_as_error = vm.count("warning") &&
+ boost::algorithm::any_of_equal(
+ vm["warning"].as<std::vector<std::string> >(), "error");
+
+ try {
+ // process the given file
+ std::string instring;
+
+ instream.unsetf(std::ios::skipws);
+ if (!input_is_stdin)
+ instring = read_entire_file(instream);
+
+ // The preprocessing of the input stream is done on the fly behind the
+ // scenes during iteration over the context_type::iterator_type stream.
+ ofstream output;
+ ofstream traceout;
+ ofstream includelistout;
+ ofstream listguardsout;
+
+ trace_flags enable_trace = trace_nothing;
+
+ if (vm.count("traceto")) {
+ // try to open the file, where to put the trace output
+ fs::path trace_file (boost::wave::util::create_path(
+ vm["traceto"].as<std::string>()));
+
+ if (trace_file != "-") {
+ boost::wave::util::create_directories(
+ boost::wave::util::branch_path(trace_file));
+ traceout.open(trace_file.string().c_str());
+ if (!traceout.is_open()) {
+ cerr << "wave: could not open trace file: " << trace_file
+ << endl;
+ return -1;
+ }
+ }
+ enable_trace = trace_macros;
+ }
+ if ((enable_trace & trace_macros) && !traceout.is_open()) {
+ // by default trace to std::cerr
+ traceout.copyfmt(cerr);
+ traceout.clear(cerr.rdstate());
+ static_cast<std::basic_ios<char> &>(traceout).rdbuf(cerr.rdbuf());
+ }
+
+ // Open the stream where to output the list of included file names
+ if (vm.count("listincludes")) {
+ // try to open the file, where to put the include list
+ fs::path includes_file(boost::wave::util::create_path(
+ vm["listincludes"].as<std::string>()));
+
+ if (includes_file != "-") {
+ boost::wave::util::create_directories(
+ boost::wave::util::branch_path(includes_file));
+ includelistout.open(includes_file.string().c_str());
+ if (!includelistout.is_open()) {
+ cerr << "wave: could not open include list file: "
+ << includes_file.string() << endl;
+ return -1;
+ }
+ }
+ enable_trace = trace_flags(enable_trace | trace_includes);
+ }
+ if ((enable_trace & trace_includes) && !includelistout.is_open()) {
+ // by default list included names to std::cout
+ includelistout.copyfmt(cout);
+ includelistout.clear(cout.rdstate());
+ static_cast<std::basic_ios<char> &>(includelistout).
+ rdbuf(cout.rdbuf());
+ }
+
+ // Open the stream where to output the list of included file names
+ if (vm.count("listguards")) {
+ // try to open the file, where to put the include list
+ fs::path listguards_file(boost::wave::util::create_path(
+ vm["listguards"].as<std::string>()));
+
+ if (listguards_file != "-") {
+ boost::wave::util::create_directories(
+ boost::wave::util::branch_path(listguards_file));
+ listguardsout.open(listguards_file.string().c_str());
+ if (!listguardsout.is_open()) {
+ cerr << "wave: could not open include guard list file: "
+ << listguards_file.string() << endl;
+ return -1;
+ }
+ }
+ enable_trace = trace_flags(enable_trace | trace_guards);
+ }
+ if ((enable_trace & trace_guards) && !listguardsout.is_open()) {
+ // by default list included names to std::cout
+ listguardsout.copyfmt(cout);
+ listguardsout.clear(cout.rdstate());
+ static_cast<std::basic_ios<char> &>(listguardsout).
+ rdbuf(cout.rdbuf());
+ }
+
+ // enable preserving comments mode
+ bool preserve_comments = false;
+ bool preserve_whitespace = false;
+ bool preserve_bol_whitespace = false;
+
+ if (vm.count("preserve")) {
+ int preserve = vm["preserve"].as<int>();
+
+ switch(preserve) {
+ case 0: break; // preserve no whitespace
+ case 3: // preserve all whitespace
+ preserve_whitespace = true;
+ preserve_comments = true;
+ preserve_bol_whitespace = true;
+ break;
+
+ case 2: // preserve comments and BOL whitespace only
+ preserve_comments = true;
+ preserve_bol_whitespace = true;
+ break;
+
+ case 1: // preserve BOL whitespace only
+ preserve_bol_whitespace = true;
+ break;
+
+ default:
+ cerr << "wave: bogus preserve whitespace option value: "
+ << preserve << ", should be 0, 1, 2, or 3" << endl;
+ return -1;
+ }
+ }
+
+ // Since the #pragma wave system() directive may cause a potential security
+ // threat, it has to be enabled explicitly by --extended or -x
+ bool enable_system_command = false;
+
+ if (vm.count("extended"))
+ enable_system_command = true;
+
+ // This this the central piece of the Wave library, it provides you with
+ // the iterators to get the preprocessed tokens and allows to configure
+ // the preprocessing stage in advance.
+ bool allow_output = true; // will be manipulated from inside the hooks object
+ std::string default_outfile; // will be used from inside the hooks object
+ trace_macro_expansion<token_type> hooks(preserve_whitespace,
+ preserve_bol_whitespace, output, traceout, includelistout,
+ listguardsout, enable_trace, enable_system_command, allow_output,
+ default_outfile);
+
+ // enable macro invocation count, if appropriate
+ if (vm.count("macrocounts"))
+ hooks.enable_macro_counting();
+
+ // check, if we have a license file to prepend
+ std::string license;
+
+ if (vm.count ("license")) {
+ // try to open the file, where to put the preprocessed output
+ std::string license_file(vm["license"].as<std::string>());
+ ifstream license_stream(license_file.c_str());
+
+ if (!license_stream.is_open()) {
+ cerr << "wave: could not open specified license file: "
+ << license_file << endl;
+ return -1;
+ }
+ license = read_entire_file(license_stream);
+ hooks.set_license_info(license);
+ }
+
+ context_type ctx (instring.begin(), instring.end(), file_name.c_str(), hooks);
+
+#if BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
+ // enable C99 mode, if appropriate (implies variadics)
+ if (vm.count("c99")) {
+#if BOOST_WAVE_SUPPORT_CPP0X != 0
+ if (vm.count("c++11")) {
+ cerr << "wave: multiple language options specified: --c99 "
+ "and --c++11" << endl;
+ return -1;
+ }
+#endif
+ ctx.set_language(
+ boost::wave::language_support(
+ boost::wave::support_c99
+ | boost::wave::support_option_convert_trigraphs
+ | boost::wave::support_option_emit_line_directives
+#if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0
+ | boost::wave::support_option_include_guard_detection
+#endif
+#if BOOST_WAVE_EMIT_PRAGMA_DIRECTIVES != 0
+ | boost::wave::support_option_emit_pragma_directives
+#endif
+ | boost::wave::support_option_insert_whitespace
+ ));
+ }
+ else if (vm.count("variadics")) {
+ // enable variadics and placemarkers, if appropriate
+ ctx.set_language(boost::wave::enable_variadics(ctx.get_language()));
+ }
+#endif // BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
+#if BOOST_WAVE_SUPPORT_CPP0X != 0
+ if (vm.count("c++11")) {
+ if (vm.count("c99")) {
+ cerr << "wave: multiple language options specified: --c99 "
+ "and --c++11" << endl;
+ return -1;
+ }
+ ctx.set_language(
+ boost::wave::language_support(
+ boost::wave::support_cpp0x
+ | boost::wave::support_option_convert_trigraphs
+ | boost::wave::support_option_long_long
+ | boost::wave::support_option_emit_line_directives
+#if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0
+ | boost::wave::support_option_include_guard_detection
+#endif
+#if BOOST_WAVE_EMIT_PRAGMA_DIRECTIVES != 0
+ | boost::wave::support_option_emit_pragma_directives
+#endif
+ | boost::wave::support_option_insert_whitespace
+ ));
+ }
+#endif // BOOST_WAVE_SUPPORT_CPP0X != 0
+
+ // enable long long support, if appropriate
+ if (vm.count("long_long")) {
+ ctx.set_language(
+ boost::wave::enable_long_long(ctx.get_language()));
+ }
+
+#if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0
+// disable include guard detection
+ if (vm.count("noguard")) {
+ ctx.set_language(
+ boost::wave::enable_include_guard_detection(
+ ctx.get_language(), false));
+ }
+#endif
+
+ // enable preserving comments mode
+ if (preserve_comments) {
+ ctx.set_language(
+ boost::wave::enable_preserve_comments(ctx.get_language()));
+ }
+
+ // control the generation of #line directives
+ if (vm.count("line")) {
+ int lineopt = vm["line"].as<int>();
+ if (0 != lineopt && 1 != lineopt && 2 != lineopt) {
+ cerr << "wave: bogus value for --line command line option: "
+ << lineopt << endl;
+ return -1;
+ }
+ ctx.set_language(
+ boost::wave::enable_emit_line_directives(ctx.get_language(),
+ lineopt != 0));
+
+ if (2 == lineopt)
+ ctx.get_hooks().enable_relative_names_in_line_directives(true);
+ }
+
+ // control whether whitespace should be inserted to disambiguate output
+ if (vm.count("disambiguate")) {
+ int disambiguateopt = vm["disambiguate"].as<int>();
+ if (0 != disambiguateopt && 1 != disambiguateopt) {
+ cerr << "wave: bogus value for --disambiguate command line option: "
+ << disambiguateopt << endl;
+ return -1;
+ }
+ ctx.set_language(
+ boost::wave::enable_insert_whitespace(ctx.get_language(),
+ disambiguateopt != 0));
+ }
+
+ // add include directories to the system include search paths
+ if (vm.count("sysinclude")) {
+ vector<std::string> syspaths = vm["sysinclude"].as<vector<std::string> >();
+
+ vector<std::string>::const_iterator end = syspaths.end();
+ for (vector<std::string>::const_iterator cit = syspaths.begin();
+ cit != end; ++cit)
+ {
+ ctx.add_sysinclude_path(cmd_line_utils::trim_quotes(*cit).c_str());
+ }
+ }
+
+ // add include directories to the include search paths
+ if (vm.count("include")) {
+ cmd_line_utils::include_paths const &ip =
+ vm["include"].as<cmd_line_utils::include_paths>();
+ vector<std::string>::const_iterator end = ip.paths.end();
+
+ for (vector<std::string>::const_iterator cit = ip.paths.begin();
+ cit != end; ++cit)
+ {
+ ctx.add_include_path(cmd_line_utils::trim_quotes(*cit).c_str());
+ }
+
+ // if -I- was given on the command line, this has to be propagated
+ if (ip.seen_separator)
+ ctx.set_sysinclude_delimiter();
+
+ // add system include directories to the include path
+ vector<std::string>::const_iterator sysend = ip.syspaths.end();
+ for (vector<std::string>::const_iterator syscit = ip.syspaths.begin();
+ syscit != sysend; ++syscit)
+ {
+ ctx.add_sysinclude_path(cmd_line_utils::trim_quotes(*syscit).c_str());
+ }
+ }
+
+ // add additional defined macros
+ if (vm.count("define")) {
+ vector<std::string> const &macros = vm["define"].as<vector<std::string> >();
+ vector<std::string>::const_iterator end = macros.end();
+ for (vector<std::string>::const_iterator cit = macros.begin();
+ cit != end; ++cit)
+ {
+ ctx.add_macro_definition(*cit);
+ }
+ }
+
+ // add additional predefined macros
+ if (vm.count("predefine")) {
+ vector<std::string> const &predefmacros =
+ vm["predefine"].as<vector<std::string> >();
+ vector<std::string>::const_iterator end = predefmacros.end();
+ for (vector<std::string>::const_iterator cit = predefmacros.begin();
+ cit != end; ++cit)
+ {
+ ctx.add_macro_definition(*cit, true);
+ }
+ }
+
+ // undefine specified macros
+ if (vm.count("undefine")) {
+ vector<std::string> const &undefmacros =
+ vm["undefine"].as<vector<std::string> >();
+ vector<std::string>::const_iterator end = undefmacros.end();
+ for (vector<std::string>::const_iterator cit = undefmacros.begin();
+ cit != end; ++cit)
+ {
+ ctx.remove_macro_definition(*cit, true);
+ }
+ }
+
+#if BOOST_WAVE_USE_DEPRECIATED_PREPROCESSING_HOOKS == 0
+ // suppress expansion of specified macros
+ if (vm.count("noexpand")) {
+ vector<std::string> const &noexpandmacros =
+ vm["noexpand"].as<vector<std::string> >();
+ vector<std::string>::const_iterator end = noexpandmacros.end();
+ for (vector<std::string>::const_iterator cit = noexpandmacros.begin();
+ cit != end; ++cit)
+ {
+ ctx.get_hooks().add_noexpandmacro(*cit);
+ }
+ }
+#endif
+
+ // maximal include nesting depth
+ if (vm.count("nesting")) {
+ int max_depth = vm["nesting"].as<int>();
+ if (max_depth < 1 || max_depth > 100000) {
+ cerr << "wave: bogus maximal include nesting depth: "
+ << max_depth << endl;
+ return -1;
+ }
+ ctx.set_max_include_nesting_depth(max_depth);
+ }
+
+ // open the output file
+ if (vm.count("output")) {
+ // try to open the file, where to put the preprocessed output
+ fs::path out_file (boost::wave::util::create_path(
+ vm["output"].as<std::string>()));
+
+ if (out_file == "-") {
+ allow_output = false; // inhibit output initially
+ default_outfile = "-";
+ }
+ else {
+ out_file = boost::wave::util::complete_path(out_file);
+ boost::wave::util::create_directories(
+ boost::wave::util::branch_path(out_file));
+ output.open(out_file.string().c_str());
+ if (!output.is_open()) {
+ cerr << "wave: could not open output file: "
+ << out_file.string() << endl;
+ return -1;
+ }
+ if (!license.empty())
+ output << license;
+ default_outfile = out_file.string();
+ }
+ }
+ else if (!input_is_stdin && vm.count("autooutput")) {
+ // generate output in the file <input_base_name>.i
+ fs::path out_file (boost::wave::util::create_path(file_name));
+ std::string basename (boost::wave::util::leaf(out_file));
+ std::string::size_type pos = basename.find_last_of(".");
+
+ if (std::string::npos != pos)
+ basename = basename.substr(0, pos);
+ out_file = boost::wave::util::branch_path(out_file) / (basename + ".i");
+
+ boost::wave::util::create_directories(
+ boost::wave::util::branch_path(out_file));
+ output.open(out_file.string().c_str());
+ if (!output.is_open()) {
+ cerr << "wave: could not open output file: "
+ << out_file.string() << endl;
+ return -1;
+ }
+ if (!license.empty())
+ output << license;
+ default_outfile = out_file.string();
+ }
+
+ // we assume the session to be interactive if input is stdin and output is
+ // stdout and the output is not inhibited
+ bool is_interactive = input_is_stdin && !output.is_open() && allow_output;
+
+ if (is_interactive) {
+ // if interactive we don't warn for missing endif's etc.
+ ctx.set_language(
+ boost::wave::enable_single_line(ctx.get_language()), false);
+ }
+
+ // analyze the input file
+ context_type::iterator_type first = ctx.begin();
+ context_type::iterator_type last = ctx.end();
+
+ // preprocess the required include files
+ if (vm.count("forceinclude")) {
+ // add the filenames to force as include files in _reverse_ order
+ // the second parameter 'is_last' of the force_include function should
+ // be set to true for the last (first given) file.
+ std::vector<std::string> const &force =
+ vm["forceinclude"].as<std::vector<std::string> >();
+ std::vector<std::string>::const_reverse_iterator rend = force.rend();
+ for (std::vector<std::string>::const_reverse_iterator cit = force.rbegin();
+ cit != rend; /**/)
+ {
+ std::string filename(*cit);
+ first.force_include(filename.c_str(), ++cit == rend);
+ }
+ }
+
+ elapsed_time.set_print_time(!input_is_stdin && vm.count("timer") > 0);
+ if (is_interactive) {
+ print_interactive_version(); // print welcome message
+ load_state(vm, ctx); // load the internal tables from disc
+ }
+ else if (vm.count("state")) {
+ // the option "state" is usable in interactive mode only
+ cerr << "wave: ignoring the command line option 'state', "
+ << "use it in interactive mode only." << endl;
+ }
+
+ // >>>>>>>>>>>>> The actual preprocessing happens here. <<<<<<<<<<<<<<<<<<<
+ // loop over the input lines if reading from stdin, otherwise this loop
+ // will be executed once
+ do {
+ // loop over all generated tokens outputting the generated text
+ bool finished = false;
+
+ if (input_is_stdin) {
+ if (is_interactive)
+ cout << ">>> "; // prompt if is interactive
+
+ // read next line and continue
+ instring.clear();
+ if (!read_a_line(instream, instring))
+ break; // end of input reached
+ first = ctx.begin(instring.begin(), instring.end());
+ }
+
+ bool need_to_advanve = false;
+
+ do {
+ try {
+ if (need_to_advanve) {
+ ++first;
+ need_to_advanve = false;
+ }
+
+ while (first != last) {
+ // store the last known good token position
+ current_position = (*first).get_position();
+
+ // print out the current token value
+ if (allow_output) {
+ if (!output.good()) {
+ cerr << "wave: problem writing to the current "
+ << "output file" << endl;
+ cerr << report_iostate_error(output.rdstate());
+ break;
+ }
+ if (output.is_open())
+ output << (*first).get_value();
+ else
+ cout << (*first).get_value();
+ }
+
+ // advance to the next token
+ ++first;
+ }
+ finished = true;
+ }
+ catch (boost::wave::cpp_exception const &e) {
+ // some preprocessing error
+ if (is_interactive || boost::wave::is_recoverable(e)) {
+ error_count += report_error_message(ctx, e,
+ treat_warnings_as_error);
+ need_to_advanve = true; // advance to the next token
+ }
+ else {
+ throw; // re-throw for non-recoverable errors
+ }
+ }
+ catch (boost::wave::cpplexer::lexing_exception const &e) {
+ // some preprocessing error
+ if (is_interactive ||
+ boost::wave::cpplexer::is_recoverable(e))
+ {
+ error_count +=
+ report_error_message(e, treat_warnings_as_error);
+ need_to_advanve = true; // advance to the next token
+ }
+ else {
+ throw; // re-throw for non-recoverable errors
+ }
+ }
+ } while (!finished);
+ } while (input_is_stdin);
+
+ if (is_interactive)
+ save_state(vm, ctx); // write the internal tables to disc
+
+ // list all defined macros at the end of the preprocessing
+ if (vm.count("macronames")) {
+ if (!list_macro_names(ctx, vm["macronames"].as<std::string>()))
+ return -1;
+ }
+ if (vm.count("macrocounts")) {
+ if (!list_macro_counts(ctx, vm["macrocounts"].as<std::string>()))
+ return -1;
+ }
+ }
+ catch (boost::wave::cpp_exception const &e) {
+ // some preprocessing error
+ report_error_message(e, treat_warnings_as_error);
+ return 1;
+ }
+ catch (boost::wave::cpplexer::lexing_exception const &e) {
+ // some lexing error
+ report_error_message(e, treat_warnings_as_error);
+ return 2;
+ }
+ catch (std::exception const &e) {
+ // use last recognized token to retrieve the error position
+ cerr
+ << current_position << ": "
+ << "exception caught: " << e.what()
+ << endl;
+ return 3;
+ }
+ catch (...) {
+ // use last recognized token to retrieve the error position
+ cerr
+ << current_position << ": "
+ << "unexpected exception caught." << endl;
+ return 4;
+ }
+ return -error_count; // returns the number of errors as a negative integer
+}
+
+///////////////////////////////////////////////////////////////////////////////
+// main entry point
+int
+main (int argc, char *argv[])
+{
+ const std::string accepted_w_args[] = {"error"};
+
+ // test Wave compilation configuration
+ if (!BOOST_WAVE_TEST_CONFIGURATION()) {
+ cout << "wave: warning: the library this application was linked against was compiled "
+ << endl
+ << " using a different configuration (see wave_config.hpp)."
+ << endl;
+ }
+
+ // analyze the command line options and arguments
+ try {
+ // declare the options allowed on the command line only
+ po::options_description desc_cmdline ("Options allowed on the command line only");
+
+ desc_cmdline.add_options()
+ ("help,h", "print out program usage (this message)")
+ ("version,v", "print the version number")
+ ("copyright", "print out the copyright statement")
+ ("config-file", po::value<vector<std::string> >()->composing(),
+ "specify a config file (alternatively: @filepath)")
+ ;
+
+ const std::string w_arg_desc = "Warning settings. Currently supported: -W" +
+ boost::algorithm::join(accepted_w_args, ", -W");
+
+ // declare the options allowed on command line and in config files
+ po::options_description desc_generic ("Options allowed additionally in a config file");
+
+ desc_generic.add_options()
+ ("output,o", po::value<std::string>(),
+ "specify a file [arg] to use for output instead of stdout or "
+ "disable output [-]")
+ ("autooutput,E",
+ "output goes into a file named <input_basename>.i")
+ ("license", po::value<std::string>(),
+ "prepend the content of the specified file to each created file")
+ ("include,I", po::value<cmd_line_utils::include_paths>()->composing(),
+ "specify an additional include directory")
+ ("sysinclude,S", po::value<vector<std::string> >()->composing(),
+ "specify an additional system include directory")
+ ("forceinclude,F", po::value<std::vector<std::string> >()->composing(),
+ "force inclusion of the given file")
+ ("define,D", po::value<std::vector<std::string> >()->composing(),
+ "specify a macro to define (as macro[=[value]])")
+ ("predefine,P", po::value<std::vector<std::string> >()->composing(),
+ "specify a macro to predefine (as macro[=[value]])")
+ ("undefine,U", po::value<std::vector<std::string> >()->composing(),
+ "specify a macro to undefine")
+#if BOOST_WAVE_USE_DEPRECIATED_PREPROCESSING_HOOKS == 0
+ ("noexpand,N", po::value<std::vector<std::string> >()->composing(),
+ "specify a macro name, which should not be expanded")
+#endif
+ ("nesting,n", po::value<int>(),
+ "specify a new maximal include nesting depth")
+ ("warning,W", po::value<std::vector<std::string> >()->composing(),
+ w_arg_desc.c_str())
+ ;
+
+ po::options_description desc_ext ("Extended options (allowed everywhere)");
+
+ desc_ext.add_options()
+ ("traceto,t", po::value<std::string>(),
+ "output macro expansion tracing information to a file [arg] "
+ "or to stderr [-]")
+ ("timer", "output overall elapsed computing time to stderr")
+ ("long_long", "enable long long support in C++ mode")
+#if BOOST_WAVE_SUPPORT_VARIADICS_PLACEMARKERS != 0
+ ("variadics", "enable certain C99 extensions in C++ mode")
+ ("c99", "enable C99 mode (implies --variadics)")
+#endif
+#if BOOST_WAVE_SUPPORT_CPP0X != 0
+ ("c++11", "enable C++11 mode (implies --variadics and --long_long)")
+#endif
+ ("listincludes,l", po::value<std::string>(),
+ "list names of included files to a file [arg] or to stdout [-]")
+ ("macronames,m", po::value<std::string>(),
+ "list all defined macros to a file [arg] or to stdout [-]")
+ ("macrocounts,c", po::value<std::string>(),
+ "list macro invocation counts to a file [arg] or to stdout [-]")
+ ("preserve,p", po::value<int>()->default_value(0),
+ "preserve whitespace\n"
+ "0: no whitespace is preserved (default),\n"
+ "1: begin of line whitespace is preserved,\n"
+ "2: comments and begin of line whitespace is preserved,\n"
+ "3: all whitespace is preserved")
+ ("line,L", po::value<int>()->default_value(1),
+ "control the generation of #line directives\n"
+ "0: no #line directives are generated,\n"
+ "1: #line directives will be emitted (default),\n"
+ "2: #line directives will be emitted using relative\n"
+ " filenames")
+ ("disambiguate", po::value<int>()->default_value(1),
+ "control whitespace insertion to disambiguate\n"
+ "consecutive tokens\n"
+ "0: no additional whitespace is generated,\n"
+ "1: whitespace is used to disambiguate output (default)")
+ ("extended,x", "enable the #pragma wave system() directive")
+#if BOOST_WAVE_SUPPORT_PRAGMA_ONCE != 0
+ ("noguard,G", "disable include guard detection")
+ ("listguards,g", po::value<std::string>(),
+ "list names of files flagged as 'include once' to a file [arg] "
+ "or to stdout [-]")
+#endif
+#if BOOST_WAVE_SERIALIZATION != 0
+ ("state,s", po::value<std::string>(),
+ "load and save state information from/to the given file [arg] "
+ "or 'wave.state' [-] (interactive mode only)")
+#endif
+ ;
+
+ // combine the options for the different usage schemes
+ po::options_description desc_overall_cmdline;
+ po::options_description desc_overall_cfgfile;
+
+ desc_overall_cmdline.add(desc_cmdline).add(desc_generic).add(desc_ext);
+ desc_overall_cfgfile.add(desc_generic).add(desc_ext);
+
+ // parse command line and store results
+ using namespace boost::program_options::command_line_style;
+
+ po::parsed_options opts(po::parse_command_line(argc, argv,
+ desc_overall_cmdline, unix_style, cmd_line_utils::at_option_parser));
+ po::variables_map vm;
+
+ po::store(opts, vm);
+ po::notify(vm);
+
+// // Try to find a wave.cfg in the same directory as the executable was
+// // started from. If this exists, treat it as a wave config file
+// fs::path filename(argv[0]);
+//
+// filename = filename.branch_path() / "wave.cfg";
+// cmd_line_utils::read_config_file_options(filename.string(),
+// desc_overall_cfgfile, vm, true);
+
+ // extract the arguments from the parsed command line
+ vector<po::option> arguments;
+
+ std::remove_copy_if(opts.options.begin(), opts.options.end(),
+ back_inserter(arguments), cmd_line_utils::is_argument());
+
+ // try to find a config file somewhere up the filesystem hierarchy
+ // starting with the input file path. This allows to use a general wave.cfg
+ // file for all files in a certain project.
+ if (arguments.size() > 0 && arguments[0].value[0] != "-") {
+ // construct full path of input file
+ fs::path input_dir (boost::wave::util::complete_path(
+ boost::wave::util::create_path(arguments[0].value[0])));
+
+ // chop of file name
+ input_dir = boost::wave::util::branch_path(
+ boost::wave::util::normalize(input_dir));
+
+ // walk up the hierarchy, trying to find a file wave.cfg
+ while (!input_dir.empty()) {
+ fs::path filename = input_dir / "wave.cfg";
+ if (cmd_line_utils::read_config_file_options(filename.string(),
+ desc_overall_cfgfile, vm, true))
+ {
+ break; // break on the first cfg file found
+ }
+ input_dir = boost::wave::util::branch_path(input_dir);
+ }
+ }
+
+ // if there is specified at least one config file, parse it and add the
+ // options to the main variables_map
+ if (vm.count("config-file")) {
+ vector<std::string> const &cfg_files =
+ vm["config-file"].as<vector<std::string> >();
+ vector<std::string>::const_iterator end = cfg_files.end();
+ for (vector<std::string>::const_iterator cit = cfg_files.begin();
+ cit != end; ++cit)
+ {
+ // parse a single config file and store the results
+ cmd_line_utils::read_config_file_options(*cit,
+ desc_overall_cfgfile, vm);
+ }
+ }
+
+ // validate warning settings
+ if (vm.count("warning"))
+ {
+ BOOST_FOREACH(const std::string& arg,
+ vm["warning"].as<std::vector<std::string> >())
+ {
+ if (boost::range::find(accepted_w_args, arg) ==
+ boost::end(accepted_w_args))
+ {
+ cerr << "wave: Invalid warning setting: " << arg << endl;
+ return -1;
+ }
+ }
+ }
+
+ // ... act as required
+ if (vm.count("help")) {
+ po::options_description desc_help (
+ "Usage: wave [options] [@config-file(s)] [file]");
+
+ desc_help.add(desc_cmdline).add(desc_generic).add(desc_ext);
+ cout << desc_help << endl;
+ return 1;
+ }
+
+ if (vm.count("version")) {
+ cout << get_version() << endl;
+ return 0;
+ }
+
+ if (vm.count("copyright")) {
+ return print_copyright();
+ }
+
+ // if there is no input file given, then take input from stdin
+ if (0 == arguments.size() || 0 == arguments[0].value.size() ||
+ arguments[0].value[0] == "-")
+ {
+ // preprocess the given input from stdin
+ return do_actual_work("<stdin>", std::cin, vm, true);
+ }
+ else {
+ if (arguments.size() > 1) {
+ // this driver understands to parse one input file only
+ cerr << "wave: more than one input file specified, "
+ << "ignoring all but the first!" << endl;
+ }
+
+ std::string file_name(arguments[0].value[0]);
+ ifstream instream(file_name.c_str());
+
+ // preprocess the given input file
+ if (!instream.is_open()) {
+ cerr << "wave: could not open input file: " << file_name << endl;
+ return -1;
+ }
+ return do_actual_work(file_name, instream, vm, false);
+ }
+ }
+ catch (std::exception const &e) {
+ cout << "wave: exception caught: " << e.what() << endl;
+ return 6;
+ }
+ catch (...) {
+ cerr << "wave: unexpected exception caught." << endl;
+ return 7;
+ }
+}
+
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 10:56:49 +0000