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diff --git a/tools/wave/cpp.cpp b/tools/wave/cpp.cpp
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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/timer.hpp>
-#include <boost/any.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 std::ofstream;
-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)
- {
- std::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)
- {
- // default error reporting
- cerr
- << e.file_name() << ":" << e.line_no() << ":" << e.column_no()
- << ": " << e.description() << endl;
-
- // errors count as one
- return (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)
- {
- // default error reporting
- int result = report_error_message(e);
-
- 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
- std::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
- std::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
- std::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;
-
- 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.
- std::ofstream output;
- std::ofstream traceout;
- std::ofstream includelistout;
- std::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>());
- std::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);
- 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);
- 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);
- return 1;
- }
- catch (boost::wave::cpplexer::lexing_exception const &e) {
- // some lexing error
- report_error_message(e);
- 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[])
-{
- // 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)")
- ;
-
- // 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")
- ;
-
- 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);
- }
- }
-
- // ... 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]);
- std::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 2.25.1) at 2024-06-14 18:37:42 +0000