X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FSupport%2FCommandLine.cpp;h=e556d76f96580c7e872cd84ae622e69e4404d84d;hb=cd6f2bfc268add3dd54cbdf98b2a2c4862fe4ba5;hp=f73ec6d8780acc532dc6ed71891bead3dc104a0f;hpb=a92d12c053510bdad196965a6bac3168d807802e;p=oota-llvm.git diff --git a/lib/Support/CommandLine.cpp b/lib/Support/CommandLine.cpp index f73ec6d8780..e556d76f965 100644 --- a/lib/Support/CommandLine.cpp +++ b/lib/Support/CommandLine.cpp @@ -1,10 +1,10 @@ //===-- CommandLine.cpp - Command line parser implementation --------------===// -// +// // The LLVM Compiler Infrastructure // // This file was developed by the LLVM research group and is distributed under // the University of Illinois Open Source License. See LICENSE.TXT for details. -// +// //===----------------------------------------------------------------------===// // // This class implements a command line argument processor that is useful when @@ -18,69 +18,86 @@ #include "llvm/Config/config.h" #include "llvm/Support/CommandLine.h" +#include "llvm/Support/ManagedStatic.h" +#include "llvm/Support/Streams.h" +#include "llvm/System/Path.h" #include +#include #include +#include #include -#include #include #include #include using namespace llvm; - using namespace cl; -// Globals for name and overview of program -static const char *ProgramName = ""; +//===----------------------------------------------------------------------===// +// Template instantiations and anchors. +// +TEMPLATE_INSTANTIATION(class basic_parser); +TEMPLATE_INSTANTIATION(class basic_parser); +TEMPLATE_INSTANTIATION(class basic_parser); +TEMPLATE_INSTANTIATION(class basic_parser); +TEMPLATE_INSTANTIATION(class basic_parser); +TEMPLATE_INSTANTIATION(class basic_parser); + +TEMPLATE_INSTANTIATION(class opt); +TEMPLATE_INSTANTIATION(class opt); +TEMPLATE_INSTANTIATION(class opt); +TEMPLATE_INSTANTIATION(class opt); + +void Option::anchor() {} +void basic_parser_impl::anchor() {} +void parser::anchor() {} +void parser::anchor() {} +void parser::anchor() {} +void parser::anchor() {} +void parser::anchor() {} +void parser::anchor() {} + +//===----------------------------------------------------------------------===// + +// Globals for name and overview of program. Program name is not a string to +// avoid static ctor/dtor issues. +static char ProgramName[80] = ""; static const char *ProgramOverview = 0; // This collects additional help to be printed. -static std::vector &MoreHelp() { - static std::vector moreHelp; - return moreHelp; -} +static ManagedStatic > MoreHelp; -extrahelp::extrahelp(const char* Help) +extrahelp::extrahelp(const char *Help) : morehelp(Help) { - MoreHelp().push_back(Help); + MoreHelp->push_back(Help); } //===----------------------------------------------------------------------===// -// Basic, shared command line option processing machinery... +// Basic, shared command line option processing machinery. // -// Return the global command line option vector. Making it a function scoped -// static ensures that it will be initialized correctly before its first use. -// -static std::map &getOpts() { - static std::map CommandLineOptions; - return CommandLineOptions; -} +static ManagedStatic > Options; +static ManagedStatic > PositionalOptions; static Option *getOption(const std::string &Str) { - std::map::iterator I = getOpts().find(Str); - return I != getOpts().end() ? I->second : 0; -} - -static std::vector &getPositionalOpts() { - static std::vector Positional; - return Positional; + std::map::iterator I = Options->find(Str); + return I != Options->end() ? I->second : 0; } static void AddArgument(const char *ArgName, Option *Opt) { if (getOption(ArgName)) { - std::cerr << ProgramName << ": CommandLine Error: Argument '" - << ArgName << "' defined more than once!\n"; + cerr << ProgramName << ": CommandLine Error: Argument '" + << ArgName << "' defined more than once!\n"; } else { // Add argument to the argument map! - getOpts()[ArgName] = Opt; + (*Options)[ArgName] = Opt; } } // RemoveArgument - It's possible that the argument is no longer in the map if // options have already been processed and the map has been deleted! -// +// static void RemoveArgument(const char *ArgName, Option *Opt) { - if(getOpts().empty()) return; + if (Options->empty()) return; #ifndef NDEBUG // This disgusting HACK is brought to you courtesy of GCC 3.3.2, which ICE's @@ -88,7 +105,7 @@ static void RemoveArgument(const char *ArgName, Option *Opt) { std::string Tmp = ArgName; assert(getOption(Tmp) == Opt && "Arg not in map!"); #endif - getOpts().erase(ArgName); + Options->erase(ArgName); } static inline bool ProvideOption(Option *Handler, const char *ArgName, @@ -97,7 +114,7 @@ static inline bool ProvideOption(Option *Handler, const char *ArgName, // Enforce value requirements switch (Handler->getValueExpectedFlag()) { case ValueRequired: - if (Value == 0 || *Value == 0) { // No value specified? + if (Value == 0) { // No value specified? if (i+1 < argc) { // Steal the next argument, like for '-o filename' Value = argv[++i]; } else { @@ -106,25 +123,25 @@ static inline bool ProvideOption(Option *Handler, const char *ArgName, } break; case ValueDisallowed: - if (*Value != 0) - return Handler->error(" does not allow a value! '" + + if (Value) + return Handler->error(" does not allow a value! '" + std::string(Value) + "' specified."); break; - case ValueOptional: + case ValueOptional: break; - default: - std::cerr << ProgramName - << ": Bad ValueMask flag! CommandLine usage error:" - << Handler->getValueExpectedFlag() << "\n"; + default: + cerr << ProgramName + << ": Bad ValueMask flag! CommandLine usage error:" + << Handler->getValueExpectedFlag() << "\n"; abort(); break; } // Run the handler now! - return Handler->addOccurrence(i, ArgName, Value); + return Handler->addOccurrence(i, ArgName, Value ? Value : ""); } -static bool ProvidePositionalOption(Option *Handler, const std::string &Arg, +static bool ProvidePositionalOption(Option *Handler, const std::string &Arg, int i) { int Dummy = i; return ProvideOption(Handler, Handler->ArgStr, Arg.c_str(), 0, 0, Dummy); @@ -147,7 +164,7 @@ static inline bool isPrefixedOrGrouping(const Option *O) { // static Option *getOptionPred(std::string Name, unsigned &Length, bool (*Pred)(const Option*)) { - + Option *Op = getOption(Name); if (Op && Pred(Op)) { Length = Name.length(); @@ -187,8 +204,8 @@ static bool EatsUnboundedNumberOfValues(const Option *O) { /// using strdup (), so it is the caller's responsibility to free () /// them later. /// -static void ParseCStringVector (std::vector &output, - const char *input) { +static void ParseCStringVector(std::vector &output, + const char *input) { // Characters which will be treated as token separators: static const char *delims = " \v\f\t\r\n"; @@ -236,28 +253,27 @@ void cl::ParseEnvironmentOptions(const char *progName, const char *envVar, // Check args. assert(progName && "Program name not specified"); assert(envVar && "Environment variable name missing"); - + // Get the environment variable they want us to parse options out of. - const char *envValue = getenv (envVar); + const char *envValue = getenv(envVar); if (!envValue) return; // Get program's "name", which we wouldn't know without the caller // telling us. - std::vector newArgv; - newArgv.push_back (strdup (progName)); + std::vector newArgv; + newArgv.push_back(strdup(progName)); // Parse the value of the environment variable into a "command line" // and hand it off to ParseCommandLineOptions(). - ParseCStringVector (newArgv, envValue); - int newArgc = newArgv.size (); - ParseCommandLineOptions (newArgc, &newArgv[0], Overview); + ParseCStringVector(newArgv, envValue); + int newArgc = newArgv.size(); + ParseCommandLineOptions(newArgc, &newArgv[0], Overview); // Free all the strdup()ed strings. - for (std::vector::iterator i = newArgv.begin (), e = newArgv.end (); - i != e; ++i) { + for (std::vector::iterator i = newArgv.begin(), e = newArgv.end(); + i != e; ++i) free (*i); - } } /// LookupOption - Lookup the option specified by the specified option on the @@ -265,19 +281,19 @@ void cl::ParseEnvironmentOptions(const char *progName, const char *envVar, /// that as well. static Option *LookupOption(const char *&Arg, const char *&Value) { while (*Arg == '-') ++Arg; // Eat leading dashes - + const char *ArgEnd = Arg; while (*ArgEnd && *ArgEnd != '=') - ++ArgEnd; // Scan till end of argument name... + ++ArgEnd; // Scan till end of argument name. + + if (*ArgEnd == '=') // If we have an equals sign... + Value = ArgEnd+1; // Get the value, not the equals + - Value = ArgEnd; - if (*Value) // If we have an equals sign... - ++Value; // Advance to value... - if (*Arg == 0) return 0; // Look up the option. - std::map &Opts = getOpts(); + std::map &Opts = *Options; std::map::iterator I = Opts.find(std::string(Arg, ArgEnd)); return (I != Opts.end()) ? I->second : 0; @@ -285,18 +301,28 @@ static Option *LookupOption(const char *&Arg, const char *&Value) { void cl::ParseCommandLineOptions(int &argc, char **argv, const char *Overview) { - assert((!getOpts().empty() || !getPositionalOpts().empty()) && + assert((!Options->empty() || !PositionalOptions->empty()) && "No options specified, or ParseCommandLineOptions called more" " than once!"); - ProgramName = argv[0]; // Save this away safe and snug + sys::Path progname(argv[0]); + + // Copy the program name into ProgName, making sure not to overflow it. + std::string ProgName = sys::Path(argv[0]).getLast(); + if (ProgName.size() > 79) ProgName.resize(79); + strcpy(ProgramName, ProgName.c_str()); + ProgramOverview = Overview; bool ErrorParsing = false; - std::map &Opts = getOpts(); - std::vector &PositionalOpts = getPositionalOpts(); + std::map &Opts = *Options; + std::vector &PositionalOpts = *PositionalOptions; // Check out the positional arguments to collect information about them. unsigned NumPositionalRequired = 0; + + // Determine whether or not there are an unlimited number of positionals + bool HasUnlimitedPositionals = false; + Option *ConsumeAfterOpt = 0; if (!PositionalOpts.empty()) { if (PositionalOpts[0]->getNumOccurrencesFlag() == cl::ConsumeAfter) { @@ -332,6 +358,7 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, } UnboundedFound |= EatsUnboundedNumberOfValues(Opt); } + HasUnlimitedPositionals = UnboundedFound || ConsumeAfterOpt; } // PositionalVals - A vector of "positional" arguments we accumulate into @@ -348,7 +375,7 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, bool DashDashFound = false; // Have we read '--'? for (int i = 1; i < argc; ++i) { Option *Handler = 0; - const char *Value = ""; + const char *Value = 0; const char *ArgName = ""; // Check to see if this is a positional argument. This argument is @@ -366,7 +393,7 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, // All of the positional arguments have been fulfulled, give the rest to // the consume after option... if it's specified... // - if (PositionalVals.size() >= NumPositionalRequired && + if (PositionalVals.size() >= NumPositionalRequired && ConsumeAfterOpt != 0) { for (++i; i < argc; ++i) PositionalVals.push_back(std::make_pair(argv[i],i)); @@ -402,7 +429,7 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, if (RealName.size() > 1) { unsigned Length = 0; Option *PGOpt = getOptionPred(RealName, Length, isPrefixedOrGrouping); - + // If the option is a prefixed option, then the value is simply the // rest of the name... so fall through to later processing, by // setting up the argument name flags and value fields. @@ -415,13 +442,13 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, } else if (PGOpt) { // This must be a grouped option... handle them now. assert(isGrouping(PGOpt) && "Broken getOptionPred!"); - + do { // Move current arg name out of RealName into RealArgName... std::string RealArgName(RealName.begin(), RealName.begin() + Length); RealName.erase(RealName.begin(), RealName.begin() + Length); - + // Because ValueRequired is an invalid flag for grouped arguments, // we don't need to pass argc/argv in... // @@ -429,12 +456,12 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, "Option can not be cl::Grouping AND cl::ValueRequired!"); int Dummy; ErrorParsing |= ProvideOption(PGOpt, RealArgName.c_str(), - "", 0, 0, Dummy); - + 0, 0, 0, Dummy); + // Get the next grouping option... PGOpt = getOptionPred(RealName, Length, isGrouping); } while (PGOpt && Length != RealName.size()); - + Handler = PGOpt; // Ate all of the options. } } @@ -442,15 +469,15 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, } if (Handler == 0) { - std::cerr << ProgramName << ": Unknown command line argument '" << argv[i] - << "'. Try: '" << argv[0] << " --help'\n"; + cerr << ProgramName << ": Unknown command line argument '" + << argv[i] << "'. Try: '" << argv[0] << " --help'\n"; ErrorParsing = true; continue; } // Check to see if this option accepts a comma separated list of values. If // it does, we have to split up the value into multiple values... - if (Handler->getMiscFlags() & CommaSeparated) { + if (Value && Handler->getMiscFlags() & CommaSeparated) { std::string Val(Value); std::string::size_type Pos = Val.find(','); @@ -473,25 +500,32 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, // active one... if (Handler->getFormattingFlag() == cl::Positional) ActivePositionalArg = Handler; - else + else ErrorParsing |= ProvideOption(Handler, ArgName, Value, argc, argv, i); } // Check and handle positional arguments now... if (NumPositionalRequired > PositionalVals.size()) { - std::cerr << ProgramName - << ": Not enough positional command line arguments specified!\n" - << "Must specify at least " << NumPositionalRequired - << " positional arguments: See: " << argv[0] << " --help\n"; + cerr << ProgramName + << ": Not enough positional command line arguments specified!\n" + << "Must specify at least " << NumPositionalRequired + << " positional arguments: See: " << argv[0] << " --help\n"; + + ErrorParsing = true; + } else if (!HasUnlimitedPositionals + && PositionalVals.size() > PositionalOpts.size()) { + cerr << ProgramName + << ": Too many positional arguments specified!\n" + << "Can specify at most " << PositionalOpts.size() + << " positional arguments: See: " << argv[0] << " --help\n"; ErrorParsing = true; - } else if (ConsumeAfterOpt == 0) { // Positional args have already been handled if ConsumeAfter is specified... unsigned ValNo = 0, NumVals = PositionalVals.size(); for (unsigned i = 0, e = PositionalOpts.size(); i != e; ++i) { if (RequiresValue(PositionalOpts[i])) { - ProvidePositionalOption(PositionalOpts[i], PositionalVals[ValNo].first, + ProvidePositionalOption(PositionalOpts[i], PositionalVals[ValNo].first, PositionalVals[ValNo].second); ValNo++; --NumPositionalRequired; // We fulfilled our duty... @@ -542,7 +576,7 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, PositionalVals[ValNo].second); ValNo++; } - + // Handle over all of the rest of the arguments to the // cl::ConsumeAfter command line option... for (; ValNo != PositionalVals.size(); ++ValNo) @@ -552,7 +586,7 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, } // Loop over args and make sure all required args are specified! - for (std::map::iterator I = Opts.begin(), + for (std::map::iterator I = Opts.begin(), E = Opts.end(); I != E; ++I) { switch (I->second->getNumOccurrencesFlag()) { case Required: @@ -569,9 +603,9 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, // Free all of the memory allocated to the map. Command line options may only // be processed once! - getOpts().clear(); + Opts.clear(); PositionalOpts.clear(); - MoreHelp().clear(); + MoreHelp->clear(); // If we had an error processing our arguments, don't let the program execute if (ErrorParsing) exit(1); @@ -584,14 +618,16 @@ void cl::ParseCommandLineOptions(int &argc, char **argv, bool Option::error(std::string Message, const char *ArgName) { if (ArgName == 0) ArgName = ArgStr; if (ArgName[0] == 0) - std::cerr << HelpStr; // Be nice for positional arguments + cerr << HelpStr; // Be nice for positional arguments else - std::cerr << ProgramName << ": for the -" << ArgName; - std::cerr << " option: " << Message << "\n"; + cerr << ProgramName << ": for the -" << ArgName; + + cerr << " option: " << Message << "\n"; return true; } -bool Option::addOccurrence(unsigned pos, const char *ArgName, const std::string &Value) { +bool Option::addOccurrence(unsigned pos, const char *ArgName, + const std::string &Value) { NumOccurrences++; // Increment the number of times we have been seen switch (getNumOccurrencesFlag()) { @@ -620,12 +656,12 @@ void Option::addArgument(const char *ArgStr) { AddArgument(ArgStr, this); if (getFormattingFlag() == Positional) - getPositionalOpts().push_back(this); + PositionalOptions->push_back(this); else if (getNumOccurrencesFlag() == ConsumeAfter) { - if (!getPositionalOpts().empty() && - getPositionalOpts().front()->getNumOccurrencesFlag() == ConsumeAfter) + if (!PositionalOptions->empty() && + PositionalOptions->front()->getNumOccurrencesFlag() == ConsumeAfter) error("Cannot specify more than one option with cl::ConsumeAfter!"); - getPositionalOpts().insert(getPositionalOpts().begin(), this); + PositionalOptions->insert(PositionalOptions->begin(), this); } } @@ -635,13 +671,13 @@ void Option::removeArgument(const char *ArgStr) { if (getFormattingFlag() == Positional) { std::vector::iterator I = - std::find(getPositionalOpts().begin(), getPositionalOpts().end(), this); - assert(I != getPositionalOpts().end() && "Arg not registered!"); - getPositionalOpts().erase(I); + std::find(PositionalOptions->begin(), PositionalOptions->end(), this); + assert(I != PositionalOptions->end() && "Arg not registered!"); + PositionalOptions->erase(I); } else if (getNumOccurrencesFlag() == ConsumeAfter) { - assert(!getPositionalOpts().empty() && getPositionalOpts()[0] == this && + assert(!PositionalOptions->empty() && (*PositionalOptions)[0] == this && "Arg not registered correctly!"); - getPositionalOpts().erase(getPositionalOpts().begin()); + PositionalOptions->erase(PositionalOptions->begin()); } } @@ -663,11 +699,11 @@ unsigned alias::getOptionWidth() const { return std::strlen(ArgStr)+6; } -// Print out the option for the alias... +// Print out the option for the alias. void alias::printOptionInfo(unsigned GlobalWidth) const { unsigned L = std::strlen(ArgStr); - std::cerr << " -" << ArgStr << std::string(GlobalWidth-L-6, ' ') << " - " - << HelpStr << "\n"; + cout << " -" << ArgStr << std::string(GlobalWidth-L-6, ' ') << " - " + << HelpStr << "\n"; } @@ -688,18 +724,18 @@ unsigned basic_parser_impl::getOptionWidth(const Option &O) const { return Len + 6; } -// printOptionInfo - Print out information about this option. The +// printOptionInfo - Print out information about this option. The // to-be-maintained width is specified. // void basic_parser_impl::printOptionInfo(const Option &O, unsigned GlobalWidth) const { - std::cerr << " -" << O.ArgStr; + cout << " -" << O.ArgStr; if (const char *ValName = getValueName()) - std::cerr << "=<" << getValueStr(O, ValName) << ">"; + cout << "=<" << getValueStr(O, ValName) << ">"; - std::cerr << std::string(GlobalWidth-getOptionWidth(O), ' ') << " - " - << O.HelpStr << "\n"; + cout << std::string(GlobalWidth-getOptionWidth(O), ' ') << " - " + << O.HelpStr << "\n"; } @@ -709,7 +745,7 @@ void basic_parser_impl::printOptionInfo(const Option &O, // bool parser::parse(Option &O, const char *ArgName, const std::string &Arg, bool &Value) { - if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" || + if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" || Arg == "1") { Value = true; } else if (Arg == "false" || Arg == "FALSE" || Arg == "False" || Arg == "0") { @@ -727,7 +763,7 @@ bool parser::parse(Option &O, const char *ArgName, const std::string &Arg, int &Value) { char *End; Value = (int)strtol(Arg.c_str(), &End, 0); - if (*End != 0) + if (*End != 0) return O.error(": '" + Arg + "' value invalid for integer argument!"); return false; } @@ -753,7 +789,7 @@ static bool parseDouble(Option &O, const std::string &Arg, double &Value) { const char *ArgStart = Arg.c_str(); char *End; Value = strtod(ArgStart, &End); - if (*End != 0) + if (*End != 0) return O.error(": '" +Arg+ "' value invalid for floating point argument!"); return false; } @@ -808,28 +844,28 @@ unsigned generic_parser_base::getOptionWidth(const Option &O) const { } } -// printOptionInfo - Print out information about this option. The +// printOptionInfo - Print out information about this option. The // to-be-maintained width is specified. // void generic_parser_base::printOptionInfo(const Option &O, unsigned GlobalWidth) const { if (O.hasArgStr()) { unsigned L = std::strlen(O.ArgStr); - std::cerr << " -" << O.ArgStr << std::string(GlobalWidth-L-6, ' ') - << " - " << O.HelpStr << "\n"; + cout << " -" << O.ArgStr << std::string(GlobalWidth-L-6, ' ') + << " - " << O.HelpStr << "\n"; for (unsigned i = 0, e = getNumOptions(); i != e; ++i) { unsigned NumSpaces = GlobalWidth-strlen(getOption(i))-8; - std::cerr << " =" << getOption(i) << std::string(NumSpaces, ' ') - << " - " << getDescription(i) << "\n"; + cout << " =" << getOption(i) << std::string(NumSpaces, ' ') + << " - " << getDescription(i) << "\n"; } } else { if (O.HelpStr[0]) - std::cerr << " " << O.HelpStr << "\n"; + cout << " " << O.HelpStr << "\n"; for (unsigned i = 0, e = getNumOptions(); i != e; ++i) { unsigned L = std::strlen(getOption(i)); - std::cerr << " -" << getOption(i) << std::string(GlobalWidth-L-8, ' ') - << " - " << getDescription(i) << "\n"; + cout << " -" << getOption(i) << std::string(GlobalWidth-L-8, ' ') + << " - " << getDescription(i) << "\n"; } } } @@ -863,110 +899,143 @@ public: if (Value == false) return; // Copy Options into a vector so we can sort them as we like... - std::vector > Options; - copy(getOpts().begin(), getOpts().end(), std::back_inserter(Options)); + std::vector > Opts; + copy(Options->begin(), Options->end(), std::back_inserter(Opts)); // Eliminate Hidden or ReallyHidden arguments, depending on ShowHidden - Options.erase(std::remove_if(Options.begin(), Options.end(), - std::ptr_fun(ShowHidden ? isReallyHidden : isHidden)), - Options.end()); + Opts.erase(std::remove_if(Opts.begin(), Opts.end(), + std::ptr_fun(ShowHidden ? isReallyHidden : isHidden)), + Opts.end()); // Eliminate duplicate entries in table (from enum flags options, f.e.) { // Give OptionSet a scope std::set OptionSet; - for (unsigned i = 0; i != Options.size(); ++i) - if (OptionSet.count(Options[i].second) == 0) - OptionSet.insert(Options[i].second); // Add new entry to set + for (unsigned i = 0; i != Opts.size(); ++i) + if (OptionSet.count(Opts[i].second) == 0) + OptionSet.insert(Opts[i].second); // Add new entry to set else - Options.erase(Options.begin()+i--); // Erase duplicate + Opts.erase(Opts.begin()+i--); // Erase duplicate } if (ProgramOverview) - std::cerr << "OVERVIEW:" << ProgramOverview << "\n"; + cout << "OVERVIEW:" << ProgramOverview << "\n"; - std::cerr << "USAGE: " << ProgramName << " [options]"; + cout << "USAGE: " << ProgramName << " [options]"; - // Print out the positional options... - std::vector &PosOpts = getPositionalOpts(); + // Print out the positional options. + std::vector &PosOpts = *PositionalOptions; Option *CAOpt = 0; // The cl::ConsumeAfter option, if it exists... if (!PosOpts.empty() && PosOpts[0]->getNumOccurrencesFlag() == ConsumeAfter) CAOpt = PosOpts[0]; for (unsigned i = CAOpt != 0, e = PosOpts.size(); i != e; ++i) { if (PosOpts[i]->ArgStr[0]) - std::cerr << " --" << PosOpts[i]->ArgStr; - std::cerr << " " << PosOpts[i]->HelpStr; + cout << " --" << PosOpts[i]->ArgStr; + cout << " " << PosOpts[i]->HelpStr; } // Print the consume after option info if it exists... - if (CAOpt) std::cerr << " " << CAOpt->HelpStr; + if (CAOpt) cout << " " << CAOpt->HelpStr; - std::cerr << "\n\n"; + cout << "\n\n"; // Compute the maximum argument length... MaxArgLen = 0; - for (unsigned i = 0, e = Options.size(); i != e; ++i) - MaxArgLen = std::max(MaxArgLen, Options[i].second->getOptionWidth()); + for (unsigned i = 0, e = Opts.size(); i != e; ++i) + MaxArgLen = std::max(MaxArgLen, Opts[i].second->getOptionWidth()); - std::cerr << "OPTIONS:\n"; - for (unsigned i = 0, e = Options.size(); i != e; ++i) - Options[i].second->printOptionInfo(MaxArgLen); + cout << "OPTIONS:\n"; + for (unsigned i = 0, e = Opts.size(); i != e; ++i) + Opts[i].second->printOptionInfo(MaxArgLen); // Print any extra help the user has declared. - for (std::vector::iterator I = MoreHelp().begin(), - E = MoreHelp().end(); I != E; ++I) - std::cerr << *I; - MoreHelp().clear(); + for (std::vector::iterator I = MoreHelp->begin(), + E = MoreHelp->end(); I != E; ++I) + cout << *I; + MoreHelp->clear(); // Halt the program since help information was printed - getOpts().clear(); // Don't bother making option dtors remove from map. + Options->clear(); // Don't bother making option dtors remove from map. exit(1); } }; +} // End anonymous namespace + +// Define the two HelpPrinter instances that are used to print out help, or +// help-hidden... +// +static HelpPrinter NormalPrinter(false); +static HelpPrinter HiddenPrinter(true); + +static cl::opt > +HOp("help", cl::desc("Display available options (--help-hidden for more)"), + cl::location(NormalPrinter), cl::ValueDisallowed); +static cl::opt > +HHOp("help-hidden", cl::desc("Display all available options"), + cl::location(HiddenPrinter), cl::Hidden, cl::ValueDisallowed); + +static void (*OverrideVersionPrinter)() = 0; + +namespace { class VersionPrinter { public: + void print() { + cout << "Low Level Virtual Machine (http://llvm.org/):\n"; + cout << " " << PACKAGE_NAME << " version " << PACKAGE_VERSION; +#ifdef LLVM_VERSION_INFO + cout << LLVM_VERSION_INFO; +#endif + cout << "\n "; +#ifndef __OPTIMIZE__ + cout << "DEBUG build"; +#else + cout << "Optimized build"; +#endif +#ifndef NDEBUG + cout << " with assertions"; +#endif + cout << ".\n"; + } void operator=(bool OptionWasSpecified) { if (OptionWasSpecified) { - std::cerr << "Low Level Virtual Machine (" << PACKAGE_NAME << ") " - << PACKAGE_VERSION << " (see http://llvm.cs.uiuc.edu/)\n"; - getOpts().clear(); // Don't bother making option dtors remove from map. - exit(1); + if (OverrideVersionPrinter == 0) { + print(); + Options->clear(); // Don't bother making option dtors remove from map. + exit(1); + } else { + (*OverrideVersionPrinter)(); + exit(1); + } } } }; +} // End anonymous namespace -// Define the two HelpPrinter instances that are used to print out help, or -// help-hidden... -// -HelpPrinter NormalPrinter(false); -HelpPrinter HiddenPrinter(true); - -cl::opt > -HOp("help", cl::desc("display available options (--help-hidden for more)"), - cl::location(NormalPrinter), cl::ValueDisallowed); - -cl::opt > -HHOp("help-hidden", cl::desc("display all available options"), - cl::location(HiddenPrinter), cl::Hidden, cl::ValueDisallowed); - // Define the --version option that prints out the LLVM version for the tool -VersionPrinter VersionPrinterInstance; -cl::opt > -VersOp("version", cl::desc("display the version"), - cl::location(VersionPrinterInstance), cl::ValueDisallowed); - +static VersionPrinter VersionPrinterInstance; -} // End anonymous namespace +static cl::opt > +VersOp("version", cl::desc("Display the version of this program"), + cl::location(VersionPrinterInstance), cl::ValueDisallowed); // Utility function for printing the help message. void cl::PrintHelpMessage() { - // This looks weird, but it actually prints the help message. The + // This looks weird, but it actually prints the help message. The // NormalPrinter variable is a HelpPrinter and the help gets printed when // its operator= is invoked. That's because the "normal" usages of the - // help printer is to be assigned true/false depending on whether the + // help printer is to be assigned true/false depending on whether the // --help option was given or not. Since we're circumventing that we have // to make it look like --help was given, so we assign true. NormalPrinter = true; } + +/// Utility function for printing version number. +void cl::PrintVersionMessage() { + VersionPrinterInstance.print(); +} + +void cl::SetVersionPrinter(void (*func)()) { + OverrideVersionPrinter = func; +}