CommandLine.cpp revision bc2d9d3de51368091601dcd34ae9556d4f9f52c0
1dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner//===-- CommandLine.cpp - Command line parser implementation --------------===// 2f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman// 3b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// The LLVM Compiler Infrastructure 4b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// 54ee451de366474b9c228b4e5fa573795a715216dChris Lattner// This file is distributed under the University of Illinois Open Source 64ee451de366474b9c228b4e5fa573795a715216dChris Lattner// License. See LICENSE.TXT for details. 7f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman// 8b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell//===----------------------------------------------------------------------===// 9dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 10dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// This class implements a command line argument processor that is useful when 11dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// creating a tool. It provides a simple, minimalistic interface that is easily 12dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// extensible and supports nonlocal (library) command line options. 13dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 1403fe1bd149b21855098e9cc9f959c8e8ca80693cChris Lattner// Note that rather than trying to figure out what this code does, you could try 1503fe1bd149b21855098e9cc9f959c8e8ca80693cChris Lattner// reading the library documentation located in docs/CommandLine.html 1603fe1bd149b21855098e9cc9f959c8e8ca80693cChris Lattner// 17dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner//===----------------------------------------------------------------------===// 18dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 19551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/Support/CommandLine.h" 207d696d80409aad20bb5da0fc4eccab941dd371d4Torok Edwin#include "llvm/Support/ErrorHandling.h" 21beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov#include "llvm/Support/MemoryBuffer.h" 2290aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner#include "llvm/Support/ManagedStatic.h" 23ca179340ce51ca394a836444d4dd1974ce18e1a4Chris Lattner#include "llvm/Support/raw_ostream.h" 24603bea32743dc9914a1d32ae36fc64fe497af801Daniel Dunbar#include "llvm/Target/TargetRegistry.h" 256552478ee74abe6851cebc5762a1dbe6982bb122Daniel Dunbar#include "llvm/System/Host.h" 266f4c60770cfe6c485cdcb1397df59d2c7778cbc9Reid Spencer#include "llvm/System/Path.h" 27ca179340ce51ca394a836444d4dd1974ce18e1a4Chris Lattner#include "llvm/ADT/OwningPtr.h" 2867aead68beae1fca4c53e92a1682364ba8cb497dChris Lattner#include "llvm/ADT/SmallPtrSet.h" 29970e7dff5ba2bd8c5613c43e3b215ca940a378e9Chris Lattner#include "llvm/ADT/SmallString.h" 3067aead68beae1fca4c53e92a1682364ba8cb497dChris Lattner#include "llvm/ADT/StringMap.h" 31a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner#include "llvm/ADT/Twine.h" 32ca179340ce51ca394a836444d4dd1974ce18e1a4Chris Lattner#include "llvm/Config/config.h" 332d6a2360036cf511af0a06f9720e6a1752779d1cBrian Gaeke#include <cerrno> 34ca179340ce51ca394a836444d4dd1974ce18e1a4Chris Lattner#include <cstdlib> 352cdd21c2e4d855500dfb53f77aa74da53ccf9de6Chris Lattnerusing namespace llvm; 36dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattnerusing namespace cl; 37dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 387422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner//===----------------------------------------------------------------------===// 397422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner// Template instantiations and anchors. 407422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner// 417422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<bool>); 4281da02b553b86868637f27b89c6e919c31ed5b51Dale JohannesenTEMPLATE_INSTANTIATION(class basic_parser<boolOrDefault>); 437422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<int>); 447422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<unsigned>); 457422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<double>); 467422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<float>); 477422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<std::string>); 48b587f9662a7b6f00f9ce48ddf2dea1a4fb18a6dbBill WendlingTEMPLATE_INSTANTIATION(class basic_parser<char>); 497422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner 507422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class opt<unsigned>); 517422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class opt<int>); 527422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class opt<std::string>); 53b587f9662a7b6f00f9ce48ddf2dea1a4fb18a6dbBill WendlingTEMPLATE_INSTANTIATION(class opt<char>); 547422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class opt<bool>); 557422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner 567422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid Option::anchor() {} 577422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid basic_parser_impl::anchor() {} 587422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<bool>::anchor() {} 5981da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesenvoid parser<boolOrDefault>::anchor() {} 607422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<int>::anchor() {} 617422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<unsigned>::anchor() {} 627422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<double>::anchor() {} 637422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<float>::anchor() {} 647422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<std::string>::anchor() {} 65b587f9662a7b6f00f9ce48ddf2dea1a4fb18a6dbBill Wendlingvoid parser<char>::anchor() {} 667422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner 677422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner//===----------------------------------------------------------------------===// 687422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner 69efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner// Globals for name and overview of program. Program name is not a string to 70efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner// avoid static ctor/dtor issues. 71efa3da5593117eab5209c9197cad5ca42213c12eChris Lattnerstatic char ProgramName[80] = "<premain>"; 72e1cc150a8e6b451e42b04b04ffb41596e01bbef5Reid Spencerstatic const char *ProgramOverview = 0; 73e1cc150a8e6b451e42b04b04ffb41596e01bbef5Reid Spencer 74c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner// This collects additional help to be printed. 7590aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattnerstatic ManagedStatic<std::vector<const char*> > MoreHelp; 76c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner 7790aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattnerextrahelp::extrahelp(const char *Help) 78c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner : morehelp(Help) { 7990aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner MoreHelp->push_back(Help); 80c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner} 81c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner 8269d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattnerstatic bool OptionListChanged = false; 8369d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner 8469d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner// MarkOptionsChanged - Internal helper function. 8569d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattnervoid cl::MarkOptionsChanged() { 8669d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner OptionListChanged = true; 8769d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner} 8869d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner 899878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner/// RegisteredOptionList - This is the list of the command line options that 909878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner/// have statically constructed themselves. 919878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattnerstatic Option *RegisteredOptionList = 0; 929878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 939878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattnervoid Option::addArgument() { 949878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner assert(NextRegistered == 0 && "argument multiply registered!"); 95beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 969878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner NextRegistered = RegisteredOptionList; 979878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner RegisteredOptionList = this; 9869d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner MarkOptionsChanged(); 999878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner} 1009878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 10169d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner 102331de23705a719514e37c211f327379688f81b0dChris Lattner//===----------------------------------------------------------------------===// 1037422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner// Basic, shared command line option processing machinery. 104331de23705a719514e37c211f327379688f81b0dChris Lattner// 105331de23705a719514e37c211f327379688f81b0dChris Lattner 1069878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner/// GetOptionInfo - Scan the list of registered options, turning them into data 1079878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner/// structures that are easier to handle. 1089878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattnerstatic void GetOptionInfo(std::vector<Option*> &PositionalOpts, 109d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov std::vector<Option*> &SinkOpts, 110461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer StringMap<Option*> &OptionsMap) { 1119878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::vector<const char*> OptionNames; 112ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner Option *CAOpt = 0; // The ConsumeAfter option if it exists. 1139878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner for (Option *O = RegisteredOptionList; O; O = O->getNextRegisteredOption()) { 1149878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // If this option wants to handle multiple option names, get the full set. 1159878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // This handles enum options like "-O1 -O2" etc. 1169878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner O->getExtraOptionNames(OptionNames); 1179878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (O->ArgStr[0]) 1189878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner OptionNames.push_back(O->ArgStr); 119beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 1209878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // Handle named options. 12134cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng for (size_t i = 0, e = OptionNames.size(); i != e; ++i) { 1229878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // Add argument to the argument map! 123461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer if (OptionsMap.GetOrCreateValue(OptionNames[i], O).second != O) { 124d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer errs() << ProgramName << ": CommandLine Error: Argument '" 12533540adca55b95a5fdbb0dc783ded319a90b4bc1Matthijs Kooijman << OptionNames[i] << "' defined more than once!\n"; 1269878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner } 1279878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner } 128beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 1299878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner OptionNames.clear(); 130beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 1319878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // Remember information about positional options. 1329878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (O->getFormattingFlag() == cl::Positional) 1339878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner PositionalOpts.push_back(O); 13461e015fe7426ca97c3c7afb583f04f5f93050370Dan Gohman else if (O->getMiscFlags() & cl::Sink) // Remember sink options 135d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov SinkOpts.push_back(O); 1369878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner else if (O->getNumOccurrencesFlag() == cl::ConsumeAfter) { 137ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner if (CAOpt) 1389878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner O->error("Cannot specify more than one option with cl::ConsumeAfter!"); 139ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner CAOpt = O; 1409878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner } 141e8e258b1a7e54a77c802e8b309d0a60a62d1a00dChris Lattner } 142beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 143ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner if (CAOpt) 144ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner PositionalOpts.push_back(CAOpt); 145beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 146ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner // Make sure that they are in order of registration not backwards. 147ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner std::reverse(PositionalOpts.begin(), PositionalOpts.end()); 148e8e258b1a7e54a77c802e8b309d0a60a62d1a00dChris Lattner} 149e8e258b1a7e54a77c802e8b309d0a60a62d1a00dChris Lattner 1509878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 151af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner/// LookupOption - Lookup the option specified by the specified option on the 152af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner/// command line. If there is a value specified (after an equal sign) return 153b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner/// that as well. This assumes that leading dashes have already been stripped. 1548a7a05814c70d84eace161d3eed07f5b5cfdd8d6Chris Lattnerstatic Option *LookupOption(StringRef &Arg, StringRef &Value, 1558a7a05814c70d84eace161d3eed07f5b5cfdd8d6Chris Lattner const StringMap<Option*> &OptionsMap) { 1568a7a05814c70d84eace161d3eed07f5b5cfdd8d6Chris Lattner // Reject all dashes. 1578a7a05814c70d84eace161d3eed07f5b5cfdd8d6Chris Lattner if (Arg.empty()) return 0; 1588a7a05814c70d84eace161d3eed07f5b5cfdd8d6Chris Lattner 1598a7a05814c70d84eace161d3eed07f5b5cfdd8d6Chris Lattner size_t EqualPos = Arg.find('='); 1608a7a05814c70d84eace161d3eed07f5b5cfdd8d6Chris Lattner 1614e247ec4952db1e39b4cc074a38b9f1d52cdaa28Chris Lattner // If we have an equals sign, remember the value. 162b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner if (EqualPos == StringRef::npos) { 163b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // Look up the option. 164b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner StringMap<Option*>::const_iterator I = OptionsMap.find(Arg); 165b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner return I != OptionsMap.end() ? I->second : 0; 1668a7a05814c70d84eace161d3eed07f5b5cfdd8d6Chris Lattner } 167beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 168b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // If the argument before the = is a valid option name, we match. If not, 169b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // return Arg unmolested. 170b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner StringMap<Option*>::const_iterator I = 171b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner OptionsMap.find(Arg.substr(0, EqualPos)); 172b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner if (I == OptionsMap.end()) return 0; 173b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 174b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner Value = Arg.substr(EqualPos+1); 175b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner Arg = Arg.substr(0, EqualPos); 176b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner return I->second; 177dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 178dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 179b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 180b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 181341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner/// ProvideOption - For Value, this differentiates between an empty value ("") 182341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner/// and a null value (StringRef()). The later is accepted for arguments that 183341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner/// don't allow a value (-foo) the former is rejected (-foo=). 18499c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattnerstatic inline bool ProvideOption(Option *Handler, StringRef ArgName, 185341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner StringRef Value, int argc, char **argv, 186caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner int &i) { 1877059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov // Is this a multi-argument option? 1887059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov unsigned NumAdditionalVals = Handler->getNumAdditionalVals(); 1897059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov 190caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner // Enforce value requirements 191caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner switch (Handler->getValueExpectedFlag()) { 192caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner case ValueRequired: 193341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner if (Value.data() == 0) { // No value specified? 194ba11229f52743ac70f01d4f62d1e04dd093de4e0Chris Lattner if (i+1 >= argc) 195e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer return Handler->error("requires a value!"); 196ba11229f52743ac70f01d4f62d1e04dd093de4e0Chris Lattner // Steal the next argument, like for '-o filename' 197ba11229f52743ac70f01d4f62d1e04dd093de4e0Chris Lattner Value = argv[++i]; 198caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner } 199caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner break; 200caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner case ValueDisallowed: 2017059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov if (NumAdditionalVals > 0) 202e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer return Handler->error("multi-valued option specified" 203ba11229f52743ac70f01d4f62d1e04dd093de4e0Chris Lattner " with ValueDisallowed modifier!"); 2047059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov 205341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner if (Value.data()) 206e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer return Handler->error("does not allow a value! '" + 207a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner Twine(Value) + "' specified."); 208caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner break; 209f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman case ValueOptional: 210e1cc150a8e6b451e42b04b04ffb41596e01bbef5Reid Spencer break; 211ba11229f52743ac70f01d4f62d1e04dd093de4e0Chris Lattner 212f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman default: 213d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer errs() << ProgramName 214e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << ": Bad ValueMask flag! CommandLine usage error:" 215e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << Handler->getValueExpectedFlag() << "\n"; 216c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable(0); 217caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner } 218caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner 2197059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov // If this isn't a multi-arg option, just run the handler. 220a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner if (NumAdditionalVals == 0) 221341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner return Handler->addOccurrence(i, ArgName, Value); 222a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner 2237059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov // If it is, run the handle several times. 224a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner bool MultiArg = false; 2257059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov 226341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner if (Value.data()) { 227a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner if (Handler->addOccurrence(i, ArgName, Value, MultiArg)) 228a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner return true; 229a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner --NumAdditionalVals; 230a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner MultiArg = true; 231a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner } 2327059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov 233a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner while (NumAdditionalVals > 0) { 234a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner if (i+1 >= argc) 235a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner return Handler->error("not enough values!"); 236a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner Value = argv[++i]; 237a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner 238a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner if (Handler->addOccurrence(i, ArgName, Value, MultiArg)) 239a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner return true; 240a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner MultiArg = true; 241a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner --NumAdditionalVals; 2427059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov } 243a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner return false; 244caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner} 245caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner 246ba11229f52743ac70f01d4f62d1e04dd093de4e0Chris Lattnerstatic bool ProvidePositionalOption(Option *Handler, StringRef Arg, int i) { 2471e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer int Dummy = i; 248341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner return ProvideOption(Handler, Handler->ArgStr, Arg, 0, 0, Dummy); 249331de23705a719514e37c211f327379688f81b0dChris Lattner} 250331de23705a719514e37c211f327379688f81b0dChris Lattner 251331de23705a719514e37c211f327379688f81b0dChris Lattner 252331de23705a719514e37c211f327379688f81b0dChris Lattner// Option predicates... 253331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic inline bool isGrouping(const Option *O) { 254331de23705a719514e37c211f327379688f81b0dChris Lattner return O->getFormattingFlag() == cl::Grouping; 255331de23705a719514e37c211f327379688f81b0dChris Lattner} 256331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic inline bool isPrefixedOrGrouping(const Option *O) { 257331de23705a719514e37c211f327379688f81b0dChris Lattner return isGrouping(O) || O->getFormattingFlag() == cl::Prefix; 258331de23705a719514e37c211f327379688f81b0dChris Lattner} 259331de23705a719514e37c211f327379688f81b0dChris Lattner 260331de23705a719514e37c211f327379688f81b0dChris Lattner// getOptionPred - Check to see if there are any options that satisfy the 261331de23705a719514e37c211f327379688f81b0dChris Lattner// specified predicate with names that are the prefixes in Name. This is 262331de23705a719514e37c211f327379688f81b0dChris Lattner// checked by progressively stripping characters off of the name, checking to 263331de23705a719514e37c211f327379688f81b0dChris Lattner// see if there options that satisfy the predicate. If we find one, return it, 264331de23705a719514e37c211f327379688f81b0dChris Lattner// otherwise return null. 265f78032fe064bdd2b9a19b875261747b7d0a27a73Chris Lattner// 26699c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattnerstatic Option *getOptionPred(StringRef Name, size_t &Length, 2679878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner bool (*Pred)(const Option*), 268b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner const StringMap<Option*> &OptionsMap) { 269f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 270b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner StringMap<Option*>::const_iterator OMI = OptionsMap.find(Name); 271f78032fe064bdd2b9a19b875261747b7d0a27a73Chris Lattner 272b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // Loop while we haven't found an option and Name still has at least two 273b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // characters in it (so that the next iteration will not be the empty 274b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // string. 275b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner while (OMI == OptionsMap.end() && Name.size() > 1) { 27699c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattner Name = Name.substr(0, Name.size()-1); // Chop off the last character. 2779878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner OMI = OptionsMap.find(Name); 278b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner } 279331de23705a719514e37c211f327379688f81b0dChris Lattner 2809878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (OMI != OptionsMap.end() && Pred(OMI->second)) { 28199c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattner Length = Name.size(); 2829878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner return OMI->second; // Found one! 283f78032fe064bdd2b9a19b875261747b7d0a27a73Chris Lattner } 284331de23705a719514e37c211f327379688f81b0dChris Lattner return 0; // No option found! 285331de23705a719514e37c211f327379688f81b0dChris Lattner} 286f78032fe064bdd2b9a19b875261747b7d0a27a73Chris Lattner 287b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner/// HandlePrefixedOrGroupedOption - The specified argument string (which started 288b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner/// with at least one '-') does not fully match an available option. Check to 289b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner/// see if this is a prefix or grouped option. If so, split arg into output an 290b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner/// Arg/Value pair and return the Option to parse it with. 291b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattnerstatic Option *HandlePrefixedOrGroupedOption(StringRef &Arg, StringRef &Value, 292b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner bool &ErrorParsing, 293b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner const StringMap<Option*> &OptionsMap) { 294b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner if (Arg.size() == 1) return 0; 295b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 296b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // Do the lookup! 297b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner size_t Length = 0; 298b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner Option *PGOpt = getOptionPred(Arg, Length, isPrefixedOrGrouping, OptionsMap); 299b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner if (PGOpt == 0) return 0; 300b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 301b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // If the option is a prefixed option, then the value is simply the 302b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // rest of the name... so fall through to later processing, by 303b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // setting up the argument name flags and value fields. 304b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner if (PGOpt->getFormattingFlag() == cl::Prefix) { 305b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner Value = Arg.substr(Length); 306b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner Arg = Arg.substr(0, Length); 307b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner assert(OptionsMap.count(Arg) && OptionsMap.find(Arg)->second == PGOpt); 308b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner return PGOpt; 309b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner } 310b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 311b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // This must be a grouped option... handle them now. Grouping options can't 312b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // have values. 313b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner assert(isGrouping(PGOpt) && "Broken getOptionPred!"); 314b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 315b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner do { 316b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // Move current arg name out of Arg into OneArgName. 317b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner StringRef OneArgName = Arg.substr(0, Length); 318b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner Arg = Arg.substr(Length); 319b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 320b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // Because ValueRequired is an invalid flag for grouped arguments, 321b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // we don't need to pass argc/argv in. 322b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner assert(PGOpt->getValueExpectedFlag() != cl::ValueRequired && 323b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner "Option can not be cl::Grouping AND cl::ValueRequired!"); 324b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner int Dummy; 325b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner ErrorParsing |= ProvideOption(PGOpt, OneArgName, 326b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner StringRef(), 0, 0, Dummy); 327b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 328b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // Get the next grouping option. 329b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner PGOpt = getOptionPred(Arg, Length, isGrouping, OptionsMap); 330b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner } while (PGOpt && Length != Arg.size()); 331b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 332b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // Return the last option with Arg cut down to just the last one. 333b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner return PGOpt; 334b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner} 335b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 336b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 337b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 338331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic bool RequiresValue(const Option *O) { 339dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman return O->getNumOccurrencesFlag() == cl::Required || 340dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman O->getNumOccurrencesFlag() == cl::OneOrMore; 341331de23705a719514e37c211f327379688f81b0dChris Lattner} 342331de23705a719514e37c211f327379688f81b0dChris Lattner 343331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic bool EatsUnboundedNumberOfValues(const Option *O) { 344dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman return O->getNumOccurrencesFlag() == cl::ZeroOrMore || 345dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman O->getNumOccurrencesFlag() == cl::OneOrMore; 346f78032fe064bdd2b9a19b875261747b7d0a27a73Chris Lattner} 347caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner 348c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke/// ParseCStringVector - Break INPUT up wherever one or more 349c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke/// whitespace characters are found, and store the resulting tokens in 350c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke/// OUTPUT. The tokens stored in OUTPUT are dynamically allocated 351fb2674d0de83cbf3b79c269bc694f612de148950Chris Lattner/// using strdup(), so it is the caller's responsibility to free() 352c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke/// them later. 35306b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// 354b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattnerstatic void ParseCStringVector(std::vector<char *> &OutputVector, 355b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner const char *Input) { 356c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Characters which will be treated as token separators: 357b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner StringRef Delims = " \v\f\t\r\n"; 358b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner 359b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner StringRef WorkStr(Input); 360b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner while (!WorkStr.empty()) { 361b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner // If the first character is a delimiter, strip them off. 362b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner if (Delims.find(WorkStr[0]) != StringRef::npos) { 363b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner size_t Pos = WorkStr.find_first_not_of(Delims); 364b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner if (Pos == StringRef::npos) Pos = WorkStr.size(); 365b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner WorkStr = WorkStr.substr(Pos); 366b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner continue; 36706b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke } 368b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner 369b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner // Find position of first delimiter. 370b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner size_t Pos = WorkStr.find_first_of(Delims); 371b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner if (Pos == StringRef::npos) Pos = WorkStr.size(); 372b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner 373b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner // Everything from 0 to Pos is the next word to copy. 374b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner char *NewStr = (char*)malloc(Pos+1); 375b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner memcpy(NewStr, WorkStr.data(), Pos); 376b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner NewStr[Pos] = 0; 377b7b71a37a1bb88ef88c387f8a31bfc10dd816e83Chris Lattner OutputVector.push_back(NewStr); 37806b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke } 37906b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke} 38006b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke 38106b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// ParseEnvironmentOptions - An alternative entry point to the 38206b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// CommandLine library, which allows you to read the program's name 38306b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// from the caller (as PROGNAME) and its command-line arguments from 38406b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// an environment variable (whose name is given in ENVVAR). 38506b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// 386bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattnervoid cl::ParseEnvironmentOptions(const char *progName, const char *envVar, 387beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov const char *Overview, bool ReadResponseFiles) { 388c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Check args. 389bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner assert(progName && "Program name not specified"); 390bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner assert(envVar && "Environment variable name missing"); 391f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 39206b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke // Get the environment variable they want us to parse options out of. 393232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner const char *envValue = getenv(envVar); 394c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke if (!envValue) 39506b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke return; 396c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke 397c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Get program's "name", which we wouldn't know without the caller 398c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // telling us. 399232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner std::vector<char*> newArgv; 400232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner newArgv.push_back(strdup(progName)); 40106b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke 40206b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke // Parse the value of the environment variable into a "command line" 40306b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke // and hand it off to ParseCommandLineOptions(). 404232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner ParseCStringVector(newArgv, envValue); 40534cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng int newArgc = static_cast<int>(newArgv.size()); 406beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov ParseCommandLineOptions(newArgc, &newArgv[0], Overview, ReadResponseFiles); 407c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke 408c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Free all the strdup()ed strings. 409232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner for (std::vector<char*>::iterator i = newArgv.begin(), e = newArgv.end(); 410232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner i != e; ++i) 411fb2674d0de83cbf3b79c269bc694f612de148950Chris Lattner free(*i); 41206b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke} 41306b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke 414beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 415beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov/// ExpandResponseFiles - Copy the contents of argv into newArgv, 416beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov/// substituting the contents of the response files for the arguments 417beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov/// of type @file. 418b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattnerstatic void ExpandResponseFiles(unsigned argc, char** argv, 419beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov std::vector<char*>& newArgv) { 420b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner for (unsigned i = 1; i != argc; ++i) { 421b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner char *arg = argv[i]; 422beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 423beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov if (arg[0] == '@') { 424beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov sys::PathWithStatus respFile(++arg); 425beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 426beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov // Check that the response file is not empty (mmap'ing empty 427beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov // files can be problematic). 428beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov const sys::FileStatus *FileStat = respFile.getFileStatus(); 4291421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov if (FileStat && FileStat->getSize() != 0) { 4301421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov 4311421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov // Mmap the response file into memory. 4321421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov OwningPtr<MemoryBuffer> 4331421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov respFilePtr(MemoryBuffer::getFile(respFile.c_str())); 4341421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov 4351421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov // If we could open the file, parse its contents, otherwise 4361421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov // pass the @file option verbatim. 4376c55b1ca7b72c90ce93ca25bc35aefef7d7deda4Mikhail Glushenkov 4386c55b1ca7b72c90ce93ca25bc35aefef7d7deda4Mikhail Glushenkov // TODO: we should also support recursive loading of response files, 4396c55b1ca7b72c90ce93ca25bc35aefef7d7deda4Mikhail Glushenkov // since this is how gcc behaves. (From their man page: "The file may 4406c55b1ca7b72c90ce93ca25bc35aefef7d7deda4Mikhail Glushenkov // itself contain additional @file options; any such options will be 4416c55b1ca7b72c90ce93ca25bc35aefef7d7deda4Mikhail Glushenkov // processed recursively.") 4426c55b1ca7b72c90ce93ca25bc35aefef7d7deda4Mikhail Glushenkov 4431421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov if (respFilePtr != 0) { 4441421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov ParseCStringVector(newArgv, respFilePtr->getBufferStart()); 4451421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov continue; 4461421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov } 4471421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov } 448beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov } 4491421b7bc23f39e57052a51f4647512936f45b12fMikhail Glushenkov newArgv.push_back(strdup(arg)); 450beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov } 451beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov} 452beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 4539a5263241d40d493445d7f386b4d76be088c3ac1Dan Gohmanvoid cl::ParseCommandLineOptions(int argc, char **argv, 454beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov const char *Overview, bool ReadResponseFiles) { 4559878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // Process all registered options. 4569878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::vector<Option*> PositionalOpts; 457d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov std::vector<Option*> SinkOpts; 458461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer StringMap<Option*> Opts; 459d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov GetOptionInfo(PositionalOpts, SinkOpts, Opts); 460beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 4619878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner assert((!Opts.empty() || !PositionalOpts.empty()) && 4629878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner "No options specified!"); 463beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 464beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov // Expand response files. 465beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov std::vector<char*> newArgv; 466beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov if (ReadResponseFiles) { 467beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov newArgv.push_back(strdup(argv[0])); 468beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov ExpandResponseFiles(argc, argv, newArgv); 469beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov argv = &newArgv[0]; 47034cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng argc = static_cast<int>(newArgv.size()); 471beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov } 472beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 473efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner // Copy the program name into ProgName, making sure not to overflow it. 474efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner std::string ProgName = sys::Path(argv[0]).getLast(); 475efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner if (ProgName.size() > 79) ProgName.resize(79); 476efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner strcpy(ProgramName, ProgName.c_str()); 477beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 478dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner ProgramOverview = Overview; 479dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner bool ErrorParsing = false; 480dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 481331de23705a719514e37c211f327379688f81b0dChris Lattner // Check out the positional arguments to collect information about them. 482331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned NumPositionalRequired = 0; 483beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 484de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner // Determine whether or not there are an unlimited number of positionals 485de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner bool HasUnlimitedPositionals = false; 486beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 487331de23705a719514e37c211f327379688f81b0dChris Lattner Option *ConsumeAfterOpt = 0; 488331de23705a719514e37c211f327379688f81b0dChris Lattner if (!PositionalOpts.empty()) { 489dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman if (PositionalOpts[0]->getNumOccurrencesFlag() == cl::ConsumeAfter) { 490331de23705a719514e37c211f327379688f81b0dChris Lattner assert(PositionalOpts.size() > 1 && 491331de23705a719514e37c211f327379688f81b0dChris Lattner "Cannot specify cl::ConsumeAfter without a positional argument!"); 492331de23705a719514e37c211f327379688f81b0dChris Lattner ConsumeAfterOpt = PositionalOpts[0]; 493331de23705a719514e37c211f327379688f81b0dChris Lattner } 494331de23705a719514e37c211f327379688f81b0dChris Lattner 495331de23705a719514e37c211f327379688f81b0dChris Lattner // Calculate how many positional values are _required_. 496331de23705a719514e37c211f327379688f81b0dChris Lattner bool UnboundedFound = false; 49734cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng for (size_t i = ConsumeAfterOpt != 0, e = PositionalOpts.size(); 498331de23705a719514e37c211f327379688f81b0dChris Lattner i != e; ++i) { 499331de23705a719514e37c211f327379688f81b0dChris Lattner Option *Opt = PositionalOpts[i]; 500331de23705a719514e37c211f327379688f81b0dChris Lattner if (RequiresValue(Opt)) 501331de23705a719514e37c211f327379688f81b0dChris Lattner ++NumPositionalRequired; 502331de23705a719514e37c211f327379688f81b0dChris Lattner else if (ConsumeAfterOpt) { 503331de23705a719514e37c211f327379688f81b0dChris Lattner // ConsumeAfter cannot be combined with "optional" positional options 50454ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner // unless there is only one positional argument... 50554ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner if (PositionalOpts.size() > 2) 50654ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner ErrorParsing |= 507e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer Opt->error("error - this positional option will never be matched, " 50854ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner "because it does not Require a value, and a " 50954ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner "cl::ConsumeAfter option is active!"); 5109cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner } else if (UnboundedFound && !Opt->ArgStr[0]) { 5119cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // This option does not "require" a value... Make sure this option is 5129cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // not specified after an option that eats all extra arguments, or this 5139cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // one will never get any! 514331de23705a719514e37c211f327379688f81b0dChris Lattner // 515e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer ErrorParsing |= Opt->error("error - option can never match, because " 516331de23705a719514e37c211f327379688f81b0dChris Lattner "another positional argument will match an " 517331de23705a719514e37c211f327379688f81b0dChris Lattner "unbounded number of values, and this option" 518331de23705a719514e37c211f327379688f81b0dChris Lattner " does not require a value!"); 519331de23705a719514e37c211f327379688f81b0dChris Lattner } 520331de23705a719514e37c211f327379688f81b0dChris Lattner UnboundedFound |= EatsUnboundedNumberOfValues(Opt); 521331de23705a719514e37c211f327379688f81b0dChris Lattner } 52221e1a79a31fe45fcd861d64118a60c1fcfad618aChris Lattner HasUnlimitedPositionals = UnboundedFound || ConsumeAfterOpt; 523331de23705a719514e37c211f327379688f81b0dChris Lattner } 524331de23705a719514e37c211f327379688f81b0dChris Lattner 5251e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer // PositionalVals - A vector of "positional" arguments we accumulate into 526ba11229f52743ac70f01d4f62d1e04dd093de4e0Chris Lattner // the process at the end. 527331de23705a719514e37c211f327379688f81b0dChris Lattner // 528ba11229f52743ac70f01d4f62d1e04dd093de4e0Chris Lattner SmallVector<std::pair<StringRef,unsigned>, 4> PositionalVals; 529331de23705a719514e37c211f327379688f81b0dChris Lattner 5309cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // If the program has named positional arguments, and the name has been run 5319cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // across, keep track of which positional argument was named. Otherwise put 5329cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // the positional args into the PositionalVals list... 5339cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner Option *ActivePositionalArg = 0; 5349cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner 535dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // Loop over all of the arguments... processing them. 536331de23705a719514e37c211f327379688f81b0dChris Lattner bool DashDashFound = false; // Have we read '--'? 537dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner for (int i = 1; i < argc; ++i) { 538dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner Option *Handler = 0; 5394e247ec4952db1e39b4cc074a38b9f1d52cdaa28Chris Lattner StringRef Value; 5408a7a05814c70d84eace161d3eed07f5b5cfdd8d6Chris Lattner StringRef ArgName = ""; 541331de23705a719514e37c211f327379688f81b0dChris Lattner 54269d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner // If the option list changed, this means that some command line 543159b0a43408e2521110e22e445ec126aaab16788Chris Lattner // option has just been registered or deregistered. This can occur in 544159b0a43408e2521110e22e445ec126aaab16788Chris Lattner // response to things like -load, etc. If this happens, rescan the options. 54569d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner if (OptionListChanged) { 546159b0a43408e2521110e22e445ec126aaab16788Chris Lattner PositionalOpts.clear(); 547d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov SinkOpts.clear(); 548159b0a43408e2521110e22e445ec126aaab16788Chris Lattner Opts.clear(); 549d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov GetOptionInfo(PositionalOpts, SinkOpts, Opts); 55069d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner OptionListChanged = false; 551159b0a43408e2521110e22e445ec126aaab16788Chris Lattner } 552beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 553331de23705a719514e37c211f327379688f81b0dChris Lattner // Check to see if this is a positional argument. This argument is 554331de23705a719514e37c211f327379688f81b0dChris Lattner // considered to be positional if it doesn't start with '-', if it is "-" 5551115e0483fc6da16d52382f159005baddf028063Misha Brukman // itself, or if we have seen "--" already. 556331de23705a719514e37c211f327379688f81b0dChris Lattner // 557331de23705a719514e37c211f327379688f81b0dChris Lattner if (argv[i][0] != '-' || argv[i][1] == 0 || DashDashFound) { 558331de23705a719514e37c211f327379688f81b0dChris Lattner // Positional argument! 5599cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner if (ActivePositionalArg) { 5601e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ProvidePositionalOption(ActivePositionalArg, argv[i], i); 5619cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner continue; // We are done! 56299c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattner } 56399c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattner 56499c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattner if (!PositionalOpts.empty()) { 5651e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals.push_back(std::make_pair(argv[i],i)); 566331de23705a719514e37c211f327379688f81b0dChris Lattner 567331de23705a719514e37c211f327379688f81b0dChris Lattner // All of the positional arguments have been fulfulled, give the rest to 568331de23705a719514e37c211f327379688f81b0dChris Lattner // the consume after option... if it's specified... 569331de23705a719514e37c211f327379688f81b0dChris Lattner // 570f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman if (PositionalVals.size() >= NumPositionalRequired && 571331de23705a719514e37c211f327379688f81b0dChris Lattner ConsumeAfterOpt != 0) { 572331de23705a719514e37c211f327379688f81b0dChris Lattner for (++i; i < argc; ++i) 5731e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals.push_back(std::make_pair(argv[i],i)); 574331de23705a719514e37c211f327379688f81b0dChris Lattner break; // Handle outside of the argument processing loop... 575331de23705a719514e37c211f327379688f81b0dChris Lattner } 576331de23705a719514e37c211f327379688f81b0dChris Lattner 577331de23705a719514e37c211f327379688f81b0dChris Lattner // Delay processing positional arguments until the end... 578331de23705a719514e37c211f327379688f81b0dChris Lattner continue; 579331de23705a719514e37c211f327379688f81b0dChris Lattner } 580bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner } else if (argv[i][0] == '-' && argv[i][1] == '-' && argv[i][2] == 0 && 581bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner !DashDashFound) { 582bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner DashDashFound = true; // This is the mythical "--"? 583bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner continue; // Don't try to process it as an argument itself. 584bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner } else if (ActivePositionalArg && 585bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner (ActivePositionalArg->getMiscFlags() & PositionalEatsArgs)) { 586bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner // If there is a positional argument eating options, check to see if this 587bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner // option is another positional argument. If so, treat it as an argument, 588bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner // otherwise feed it to the eating positional. 589dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner ArgName = argv[i]+1; 590b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // Eat leading dashes. 591b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner while (!ArgName.empty() && ArgName[0] == '-') 592b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner ArgName = ArgName.substr(1); 593b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 5949878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner Handler = LookupOption(ArgName, Value, Opts); 595bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner if (!Handler || Handler->getFormattingFlag() != cl::Positional) { 5961e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ProvidePositionalOption(ActivePositionalArg, argv[i], i); 597bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner continue; // We are done! 598331de23705a719514e37c211f327379688f81b0dChris Lattner } 599331de23705a719514e37c211f327379688f81b0dChris Lattner 60099c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattner } else { // We start with a '-', must be an argument. 601bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner ArgName = argv[i]+1; 602b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // Eat leading dashes. 603b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner while (!ArgName.empty() && ArgName[0] == '-') 604b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner ArgName = ArgName.substr(1); 605b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner 6069878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner Handler = LookupOption(ArgName, Value, Opts); 607331de23705a719514e37c211f327379688f81b0dChris Lattner 608bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner // Check to see if this "option" is really a prefixed or grouped argument. 609b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner if (Handler == 0) 610b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner Handler = HandlePrefixedOrGroupedOption(ArgName, Value, 611b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner ErrorParsing, Opts); 612dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 613dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 614dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner if (Handler == 0) { 615d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov if (SinkOpts.empty()) { 616d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer errs() << ProgramName << ": Unknown command line argument '" 617d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov << argv[i] << "'. Try: '" << argv[0] << " --help'\n"; 618d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov ErrorParsing = true; 619d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov } else { 620d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov for (std::vector<Option*>::iterator I = SinkOpts.begin(), 621d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov E = SinkOpts.end(); I != E ; ++I) 622d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov (*I)->addOccurrence(i, "", argv[i]); 623d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov } 624dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner continue; 625dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 626dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 62772fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner // Check to see if this option accepts a comma separated list of values. If 628341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner // it does, we have to split up the value into multiple values. 6294e247ec4952db1e39b4cc074a38b9f1d52cdaa28Chris Lattner if (Handler->getMiscFlags() & CommaSeparated) { 630341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner StringRef Val(Value); 631341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner StringRef::size_type Pos = Val.find(','); 632341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner 633341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner while (Pos != StringRef::npos) { 634341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner // Process the portion before the comma. 635341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner ErrorParsing |= ProvideOption(Handler, ArgName, Val.substr(0, Pos), 63672fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner argc, argv, i); 637341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner // Erase the portion before the comma, AND the comma. 638341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner Val = Val.substr(Pos+1); 6394e247ec4952db1e39b4cc074a38b9f1d52cdaa28Chris Lattner Value.substr(Pos+1); // Increment the original value pointer as well. 64072fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner 641341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner // Check for another comma. 64272fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner Pos = Val.find(','); 64372fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner } 64472fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner } 6459cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner 6469cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // If this is a named positional argument, just remember that it is the 6479cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // active one... 6489cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner if (Handler->getFormattingFlag() == cl::Positional) 6499cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner ActivePositionalArg = Handler; 650341620b2762e604fbf8c75913a1cc5b9c9297b7dChris Lattner else 6514e247ec4952db1e39b4cc074a38b9f1d52cdaa28Chris Lattner ErrorParsing |= ProvideOption(Handler, ArgName, Value, argc, argv, i); 652331de23705a719514e37c211f327379688f81b0dChris Lattner } 653dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 654331de23705a719514e37c211f327379688f81b0dChris Lattner // Check and handle positional arguments now... 655331de23705a719514e37c211f327379688f81b0dChris Lattner if (NumPositionalRequired > PositionalVals.size()) { 656d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer errs() << ProgramName 657e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << ": Not enough positional command line arguments specified!\n" 658e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << "Must specify at least " << NumPositionalRequired 659e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << " positional arguments: See: " << argv[0] << " --help\n"; 660beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 661331de23705a719514e37c211f327379688f81b0dChris Lattner ErrorParsing = true; 662de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner } else if (!HasUnlimitedPositionals 663de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner && PositionalVals.size() > PositionalOpts.size()) { 664d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer errs() << ProgramName 665e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << ": Too many positional arguments specified!\n" 666e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << "Can specify at most " << PositionalOpts.size() 667e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << " positional arguments: See: " << argv[0] << " --help\n"; 668de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner ErrorParsing = true; 669331de23705a719514e37c211f327379688f81b0dChris Lattner 670331de23705a719514e37c211f327379688f81b0dChris Lattner } else if (ConsumeAfterOpt == 0) { 671b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner // Positional args have already been handled if ConsumeAfter is specified. 67234cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng unsigned ValNo = 0, NumVals = static_cast<unsigned>(PositionalVals.size()); 67334cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng for (size_t i = 0, e = PositionalOpts.size(); i != e; ++i) { 674331de23705a719514e37c211f327379688f81b0dChris Lattner if (RequiresValue(PositionalOpts[i])) { 675f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman ProvidePositionalOption(PositionalOpts[i], PositionalVals[ValNo].first, 6761e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].second); 6771e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ValNo++; 678331de23705a719514e37c211f327379688f81b0dChris Lattner --NumPositionalRequired; // We fulfilled our duty... 679331de23705a719514e37c211f327379688f81b0dChris Lattner } 680331de23705a719514e37c211f327379688f81b0dChris Lattner 681331de23705a719514e37c211f327379688f81b0dChris Lattner // If we _can_ give this option more arguments, do so now, as long as we 682331de23705a719514e37c211f327379688f81b0dChris Lattner // do not give it values that others need. 'Done' controls whether the 683331de23705a719514e37c211f327379688f81b0dChris Lattner // option even _WANTS_ any more. 684331de23705a719514e37c211f327379688f81b0dChris Lattner // 685dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman bool Done = PositionalOpts[i]->getNumOccurrencesFlag() == cl::Required; 686331de23705a719514e37c211f327379688f81b0dChris Lattner while (NumVals-ValNo > NumPositionalRequired && !Done) { 687dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman switch (PositionalOpts[i]->getNumOccurrencesFlag()) { 688331de23705a719514e37c211f327379688f81b0dChris Lattner case cl::Optional: 689331de23705a719514e37c211f327379688f81b0dChris Lattner Done = true; // Optional arguments want _at most_ one value 690331de23705a719514e37c211f327379688f81b0dChris Lattner // FALL THROUGH 691331de23705a719514e37c211f327379688f81b0dChris Lattner case cl::ZeroOrMore: // Zero or more will take all they can get... 692331de23705a719514e37c211f327379688f81b0dChris Lattner case cl::OneOrMore: // One or more will take all they can get... 6931e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ProvidePositionalOption(PositionalOpts[i], 6941e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].first, 6951e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].second); 6961e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ValNo++; 697331de23705a719514e37c211f327379688f81b0dChris Lattner break; 698331de23705a719514e37c211f327379688f81b0dChris Lattner default: 699c23197a26f34f559ea9797de51e187087c039c42Torok Edwin llvm_unreachable("Internal error, unexpected NumOccurrences flag in " 700331de23705a719514e37c211f327379688f81b0dChris Lattner "positional argument processing!"); 701331de23705a719514e37c211f327379688f81b0dChris Lattner } 702331de23705a719514e37c211f327379688f81b0dChris Lattner } 703caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner } 704331de23705a719514e37c211f327379688f81b0dChris Lattner } else { 705331de23705a719514e37c211f327379688f81b0dChris Lattner assert(ConsumeAfterOpt && NumPositionalRequired <= PositionalVals.size()); 706331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned ValNo = 0; 70734cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng for (size_t j = 1, e = PositionalOpts.size(); j != e; ++j) 7081e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer if (RequiresValue(PositionalOpts[j])) { 709faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner ErrorParsing |= ProvidePositionalOption(PositionalOpts[j], 7101e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].first, 7111e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].second); 7121e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ValNo++; 7131e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer } 714faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner 715faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner // Handle the case where there is just one positional option, and it's 716faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner // optional. In this case, we want to give JUST THE FIRST option to the 717faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner // positional option and keep the rest for the consume after. The above 718faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner // loop would have assigned no values to positional options in this case. 719faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner // 7201e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer if (PositionalOpts.size() == 2 && ValNo == 0 && !PositionalVals.empty()) { 721faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner ErrorParsing |= ProvidePositionalOption(PositionalOpts[1], 7221e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].first, 7231e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].second); 7241e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ValNo++; 7251e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer } 726f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 727331de23705a719514e37c211f327379688f81b0dChris Lattner // Handle over all of the rest of the arguments to the 728331de23705a719514e37c211f327379688f81b0dChris Lattner // cl::ConsumeAfter command line option... 729331de23705a719514e37c211f327379688f81b0dChris Lattner for (; ValNo != PositionalVals.size(); ++ValNo) 730331de23705a719514e37c211f327379688f81b0dChris Lattner ErrorParsing |= ProvidePositionalOption(ConsumeAfterOpt, 7311e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].first, 7321e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].second); 733dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 734dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 735dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner // Loop over args and make sure all required args are specified! 736461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer for (StringMap<Option*>::iterator I = Opts.begin(), 737b5c520bfb6505caaa6ad8468b372530d44c8b253Misha Brukman E = Opts.end(); I != E; ++I) { 738dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman switch (I->second->getNumOccurrencesFlag()) { 739dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner case Required: 740dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner case OneOrMore: 741dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman if (I->second->getNumOccurrences() == 0) { 742e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer I->second->error("must be specified at least once!"); 743f038acbee21cfed998451aedd00a81901d299516Chris Lattner ErrorParsing = true; 744f038acbee21cfed998451aedd00a81901d299516Chris Lattner } 745dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner // Fall through 746dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner default: 747dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner break; 748dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner } 749dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner } 750dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 751331de23705a719514e37c211f327379688f81b0dChris Lattner // Free all of the memory allocated to the map. Command line options may only 752331de23705a719514e37c211f327379688f81b0dChris Lattner // be processed once! 75390aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner Opts.clear(); 754331de23705a719514e37c211f327379688f81b0dChris Lattner PositionalOpts.clear(); 75590aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner MoreHelp->clear(); 756dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 757beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov // Free the memory allocated by ExpandResponseFiles. 758beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov if (ReadResponseFiles) { 759beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov // Free all the strdup()ed strings. 760beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov for (std::vector<char*>::iterator i = newArgv.begin(), e = newArgv.end(); 761beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov i != e; ++i) 762beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov free (*i); 763beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov } 764beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 765dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // If we had an error processing our arguments, don't let the program execute 766dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner if (ErrorParsing) exit(1); 767dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 768dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 769dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner//===----------------------------------------------------------------------===// 770dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// Option Base class implementation 771dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 772dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 77399c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattnerbool Option::error(const Twine &Message, StringRef ArgName) { 77499c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattner if (ArgName.data() == 0) ArgName = ArgStr; 77599c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattner if (ArgName.empty()) 776d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer errs() << HelpStr; // Be nice for positional arguments 777331de23705a719514e37c211f327379688f81b0dChris Lattner else 778d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer errs() << ProgramName << ": for the -" << ArgName; 779beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 780d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer errs() << " option: " << Message << "\n"; 781dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner return true; 782dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 783dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 78499c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattnerbool Option::addOccurrence(unsigned pos, StringRef ArgName, 785a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner StringRef Value, bool MultiArg) { 7867059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov if (!MultiArg) 7877059d47a6e1a378232dce3e47b51434dec0ea608Mikhail Glushenkov NumOccurrences++; // Increment the number of times we have been seen 788dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 789dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman switch (getNumOccurrencesFlag()) { 790dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner case Optional: 791dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman if (NumOccurrences > 1) 792e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer return error("may only occur zero or one times!", ArgName); 793dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner break; 794dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner case Required: 795dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman if (NumOccurrences > 1) 796e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer return error("must occur exactly one time!", ArgName); 797dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // Fall through 798dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner case OneOrMore: 799caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner case ZeroOrMore: 800caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner case ConsumeAfter: break; 801e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer default: return error("bad num occurrences flag value!"); 802dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 803dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 8041e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer return handleOccurrence(pos, ArgName, Value); 805dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 806dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 807331de23705a719514e37c211f327379688f81b0dChris Lattner 808331de23705a719514e37c211f327379688f81b0dChris Lattner// getValueStr - Get the value description string, using "DefaultMsg" if nothing 809331de23705a719514e37c211f327379688f81b0dChris Lattner// has been specified yet. 810331de23705a719514e37c211f327379688f81b0dChris Lattner// 811331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic const char *getValueStr(const Option &O, const char *DefaultMsg) { 812331de23705a719514e37c211f327379688f81b0dChris Lattner if (O.ValueStr[0] == 0) return DefaultMsg; 813331de23705a719514e37c211f327379688f81b0dChris Lattner return O.ValueStr; 814331de23705a719514e37c211f327379688f81b0dChris Lattner} 815331de23705a719514e37c211f327379688f81b0dChris Lattner 816331de23705a719514e37c211f327379688f81b0dChris Lattner//===----------------------------------------------------------------------===// 817331de23705a719514e37c211f327379688f81b0dChris Lattner// cl::alias class implementation 818331de23705a719514e37c211f327379688f81b0dChris Lattner// 819331de23705a719514e37c211f327379688f81b0dChris Lattner 820dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// Return the width of the option tag for printing... 82134cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Chengsize_t alias::getOptionWidth() const { 822dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner return std::strlen(ArgStr)+6; 823dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 824dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 825a0de843535627977d107bbe84e4ad20cd2a5060aChris Lattner// Print out the option for the alias. 82634cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Chengvoid alias::printOptionInfo(size_t GlobalWidth) const { 82734cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng size_t L = std::strlen(ArgStr); 828b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner errs() << " -" << ArgStr; 829b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner errs().indent(GlobalWidth-L-6) << " - " << HelpStr << "\n"; 830dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 831dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 832dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 833331de23705a719514e37c211f327379688f81b0dChris Lattner 834dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner//===----------------------------------------------------------------------===// 835331de23705a719514e37c211f327379688f81b0dChris Lattner// Parser Implementation code... 836dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 837dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 8389b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// basic_parser implementation 8399b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// 8409b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 8419b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// Return the width of the option tag for printing... 84234cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Chengsize_t basic_parser_impl::getOptionWidth(const Option &O) const { 84334cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng size_t Len = std::strlen(O.ArgStr); 8449b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner if (const char *ValName = getValueName()) 8459b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner Len += std::strlen(getValueStr(O, ValName))+3; 8469b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 8479b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner return Len + 6; 8489b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner} 8499b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 850f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman// printOptionInfo - Print out information about this option. The 8519b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// to-be-maintained width is specified. 8529b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// 8539b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattnervoid basic_parser_impl::printOptionInfo(const Option &O, 85434cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng size_t GlobalWidth) const { 855d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner outs() << " -" << O.ArgStr; 8569b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 8579b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner if (const char *ValName = getValueName()) 858d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner outs() << "=<" << getValueStr(O, ValName) << '>'; 8599b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 860d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner outs().indent(GlobalWidth-getOptionWidth(O)) << " - " << O.HelpStr << '\n'; 8619b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner} 8629b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 8639b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 8649b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 8659b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 866331de23705a719514e37c211f327379688f81b0dChris Lattner// parser<bool> implementation 867331de23705a719514e37c211f327379688f81b0dChris Lattner// 86899c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattnerbool parser<bool>::parse(Option &O, StringRef ArgName, 869a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner StringRef Arg, bool &Value) { 870f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" || 871dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner Arg == "1") { 872dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner Value = true; 873a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner return false; 874a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner } 875a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner 876a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner if (Arg == "false" || Arg == "FALSE" || Arg == "False" || Arg == "0") { 877dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner Value = false; 878a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner return false; 879dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 880a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner return O.error("'" + Arg + 881a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner "' is invalid value for boolean argument! Try 0 or 1"); 882dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 883dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 88481da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen// parser<boolOrDefault> implementation 88581da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen// 88699c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattnerbool parser<boolOrDefault>::parse(Option &O, StringRef ArgName, 887a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner StringRef Arg, boolOrDefault &Value) { 88881da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" || 88981da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen Arg == "1") { 89081da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen Value = BOU_TRUE; 891a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner return false; 892a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner } 893a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner if (Arg == "false" || Arg == "FALSE" || Arg == "False" || Arg == "0") { 89481da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen Value = BOU_FALSE; 895a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner return false; 89681da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen } 897a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner 898a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner return O.error("'" + Arg + 899a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner "' is invalid value for boolean argument! Try 0 or 1"); 90081da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen} 90181da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen 902331de23705a719514e37c211f327379688f81b0dChris Lattner// parser<int> implementation 903dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 90499c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattnerbool parser<int>::parse(Option &O, StringRef ArgName, 905a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner StringRef Arg, int &Value) { 906970e7dff5ba2bd8c5613c43e3b215ca940a378e9Chris Lattner if (Arg.getAsInteger(0, Value)) 907e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer return O.error("'" + Arg + "' value invalid for integer argument!"); 908331de23705a719514e37c211f327379688f81b0dChris Lattner return false; 909dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 910dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 911d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner// parser<unsigned> implementation 912d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner// 91399c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattnerbool parser<unsigned>::parse(Option &O, StringRef ArgName, 914a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner StringRef Arg, unsigned &Value) { 915970e7dff5ba2bd8c5613c43e3b215ca940a378e9Chris Lattner 916970e7dff5ba2bd8c5613c43e3b215ca940a378e9Chris Lattner if (Arg.getAsInteger(0, Value)) 917e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer return O.error("'" + Arg + "' value invalid for uint argument!"); 918d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner return false; 919d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner} 920d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner 9219b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// parser<double>/parser<float> implementation 922331de23705a719514e37c211f327379688f81b0dChris Lattner// 923a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattnerstatic bool parseDouble(Option &O, StringRef Arg, double &Value) { 924970e7dff5ba2bd8c5613c43e3b215ca940a378e9Chris Lattner SmallString<32> TmpStr(Arg.begin(), Arg.end()); 925970e7dff5ba2bd8c5613c43e3b215ca940a378e9Chris Lattner const char *ArgStart = TmpStr.c_str(); 926331de23705a719514e37c211f327379688f81b0dChris Lattner char *End; 927331de23705a719514e37c211f327379688f81b0dChris Lattner Value = strtod(ArgStart, &End); 928f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman if (*End != 0) 929e6864c1d355c4ec1156b956c1dd548682ad3e6b1Benjamin Kramer return O.error("'" + Arg + "' value invalid for floating point argument!"); 930dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner return false; 931dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 932dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 93399c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattnerbool parser<double>::parse(Option &O, StringRef ArgName, 934a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner StringRef Arg, double &Val) { 9359b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner return parseDouble(O, Arg, Val); 936dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 937dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 93899c5c7b7df4fe44d54cd680e7878c44789e6e057Chris Lattnerbool parser<float>::parse(Option &O, StringRef ArgName, 939a460beb5cdc1cf05da3b22a39fd2b3107ea2e2feChris Lattner StringRef Arg, float &Val) { 9409b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner double dVal; 9419b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner if (parseDouble(O, Arg, dVal)) 9429b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner return true; 9439b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner Val = (float)dVal; 9449b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner return false; 945dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 946dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 947dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 948dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 949331de23705a719514e37c211f327379688f81b0dChris Lattner// generic_parser_base implementation 950dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 951dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 952aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner// findOption - Return the option number corresponding to the specified 953aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner// argument string. If the option is not found, getNumOptions() is returned. 954aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner// 955aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattnerunsigned generic_parser_base::findOption(const char *Name) { 956461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer unsigned e = getNumOptions(); 957aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner 958461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer for (unsigned i = 0; i != e; ++i) { 959461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer if (strcmp(getOption(i), Name) == 0) 960aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner return i; 961461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer } 962aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner return e; 963aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner} 964aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner 965aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner 966dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// Return the width of the option tag for printing... 96734cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Chengsize_t generic_parser_base::getOptionWidth(const Option &O) const { 968331de23705a719514e37c211f327379688f81b0dChris Lattner if (O.hasArgStr()) { 96934cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng size_t Size = std::strlen(O.ArgStr)+6; 970331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned i = 0, e = getNumOptions(); i != e; ++i) 97134cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng Size = std::max(Size, std::strlen(getOption(i))+8); 972331de23705a719514e37c211f327379688f81b0dChris Lattner return Size; 973331de23705a719514e37c211f327379688f81b0dChris Lattner } else { 97434cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng size_t BaseSize = 0; 975331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned i = 0, e = getNumOptions(); i != e; ++i) 97634cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng BaseSize = std::max(BaseSize, std::strlen(getOption(i))+8); 977331de23705a719514e37c211f327379688f81b0dChris Lattner return BaseSize; 978331de23705a719514e37c211f327379688f81b0dChris Lattner } 979dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 980dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 981f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman// printOptionInfo - Print out information about this option. The 982dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// to-be-maintained width is specified. 983dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 984331de23705a719514e37c211f327379688f81b0dChris Lattnervoid generic_parser_base::printOptionInfo(const Option &O, 98534cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng size_t GlobalWidth) const { 986331de23705a719514e37c211f327379688f81b0dChris Lattner if (O.hasArgStr()) { 98734cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng size_t L = std::strlen(O.ArgStr); 988b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner outs() << " -" << O.ArgStr; 989b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner outs().indent(GlobalWidth-L-6) << " - " << O.HelpStr << '\n'; 990331de23705a719514e37c211f327379688f81b0dChris Lattner 991331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned i = 0, e = getNumOptions(); i != e; ++i) { 99234cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng size_t NumSpaces = GlobalWidth-strlen(getOption(i))-8; 993b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner outs() << " =" << getOption(i); 994b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner outs().indent(NumSpaces) << " - " << getDescription(i) << '\n'; 995331de23705a719514e37c211f327379688f81b0dChris Lattner } 996331de23705a719514e37c211f327379688f81b0dChris Lattner } else { 997331de23705a719514e37c211f327379688f81b0dChris Lattner if (O.HelpStr[0]) 998b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner outs() << " " << O.HelpStr << '\n'; 999331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned i = 0, e = getNumOptions(); i != e; ++i) { 100034cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng size_t L = std::strlen(getOption(i)); 1001b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner outs() << " -" << getOption(i); 1002b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner outs().indent(GlobalWidth-L-8) << " - " << getDescription(i) << '\n'; 1003331de23705a719514e37c211f327379688f81b0dChris Lattner } 1004dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 1005dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 1006dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1007dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1008dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner//===----------------------------------------------------------------------===// 1009331de23705a719514e37c211f327379688f81b0dChris Lattner// --help and --help-hidden option implementation 1010dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 1011ad0846bd8be0a86e0277e1890fd280c9868f830aReid Spencer 10120fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattnerstatic int OptNameCompare(const void *LHS, const void *RHS) { 10130fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner typedef std::pair<const char *, Option*> pair_ty; 10140fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner 10150fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner return strcmp(((pair_ty*)LHS)->first, ((pair_ty*)RHS)->first); 10160fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner} 10170fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner 1018dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattnernamespace { 1019dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1020331de23705a719514e37c211f327379688f81b0dChris Lattnerclass HelpPrinter { 102134cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng size_t MaxArgLen; 1022dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner const Option *EmptyArg; 1023dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner const bool ShowHidden; 1024dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1025331de23705a719514e37c211f327379688f81b0dChris Lattnerpublic: 1026950a4c40b823cd4f09dc71be635229246dfd6cacDan Gohman explicit HelpPrinter(bool showHidden) : ShowHidden(showHidden) { 1027331de23705a719514e37c211f327379688f81b0dChris Lattner EmptyArg = 0; 1028331de23705a719514e37c211f327379688f81b0dChris Lattner } 1029331de23705a719514e37c211f327379688f81b0dChris Lattner 1030331de23705a719514e37c211f327379688f81b0dChris Lattner void operator=(bool Value) { 1031331de23705a719514e37c211f327379688f81b0dChris Lattner if (Value == false) return; 1032331de23705a719514e37c211f327379688f81b0dChris Lattner 10339878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // Get all the options. 10349878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::vector<Option*> PositionalOpts; 1035d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov std::vector<Option*> SinkOpts; 1036461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer StringMap<Option*> OptMap; 1037d57160d097d6cdb966e5c851215acbd2bf1aa236Anton Korobeynikov GetOptionInfo(PositionalOpts, SinkOpts, OptMap); 1038beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov 103967aead68beae1fca4c53e92a1682364ba8cb497dChris Lattner // Copy Options into a vector so we can sort them as we like. 10400fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner SmallVector<std::pair<const char *, Option*>, 128> Opts; 1041d0062c6e7c870da1f5fa7e587be21aa8ac1188fbChris Lattner SmallPtrSet<Option*, 128> OptionSet; // Duplicate option detection. 1042d0062c6e7c870da1f5fa7e587be21aa8ac1188fbChris Lattner 1043461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer for (StringMap<Option*>::iterator I = OptMap.begin(), E = OptMap.end(); 1044461c87655b89fd44604bf705b68e7541d2b721a7Benjamin Kramer I != E; ++I) { 1045081bcb0d41f6300b92967b2758e0ba1f23e38462Chris Lattner // Ignore really-hidden options. 1046081bcb0d41f6300b92967b2758e0ba1f23e38462Chris Lattner if (I->second->getOptionHiddenFlag() == ReallyHidden) 1047081bcb0d41f6300b92967b2758e0ba1f23e38462Chris Lattner continue; 1048081bcb0d41f6300b92967b2758e0ba1f23e38462Chris Lattner 1049081bcb0d41f6300b92967b2758e0ba1f23e38462Chris Lattner // Unless showhidden is set, ignore hidden flags. 1050081bcb0d41f6300b92967b2758e0ba1f23e38462Chris Lattner if (I->second->getOptionHiddenFlag() == Hidden && !ShowHidden) 1051081bcb0d41f6300b92967b2758e0ba1f23e38462Chris Lattner continue; 1052081bcb0d41f6300b92967b2758e0ba1f23e38462Chris Lattner 1053d0062c6e7c870da1f5fa7e587be21aa8ac1188fbChris Lattner // If we've already seen this option, don't add it to the list again. 10540fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner if (!OptionSet.insert(I->second)) 1055d0062c6e7c870da1f5fa7e587be21aa8ac1188fbChris Lattner continue; 1056dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 10570fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner Opts.push_back(std::pair<const char *, Option*>(I->getKey().data(), 10580fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner I->second)); 1059331de23705a719514e37c211f327379688f81b0dChris Lattner } 10600fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner 10610fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner // Sort the options list alphabetically. 10620fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner qsort(Opts.data(), Opts.size(), sizeof(Opts[0]), OptNameCompare); 1063dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1064dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner if (ProgramOverview) 1065d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner outs() << "OVERVIEW: " << ProgramOverview << "\n"; 1066dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1067d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner outs() << "USAGE: " << ProgramName << " [options]"; 1068331de23705a719514e37c211f327379688f81b0dChris Lattner 106990aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner // Print out the positional options. 1070331de23705a719514e37c211f327379688f81b0dChris Lattner Option *CAOpt = 0; // The cl::ConsumeAfter option, if it exists... 1071beb4d8293d5311c4581fd3d914f865e358af53a5Mikhail Glushenkov if (!PositionalOpts.empty() && 10729878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner PositionalOpts[0]->getNumOccurrencesFlag() == ConsumeAfter) 10739878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner CAOpt = PositionalOpts[0]; 10749878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 107534cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng for (size_t i = CAOpt != 0, e = PositionalOpts.size(); i != e; ++i) { 10769878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (PositionalOpts[i]->ArgStr[0]) 1077d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner outs() << " --" << PositionalOpts[i]->ArgStr; 1078d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner outs() << " " << PositionalOpts[i]->HelpStr; 10799cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner } 1080331de23705a719514e37c211f327379688f81b0dChris Lattner 1081331de23705a719514e37c211f327379688f81b0dChris Lattner // Print the consume after option info if it exists... 1082d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner if (CAOpt) outs() << " " << CAOpt->HelpStr; 1083331de23705a719514e37c211f327379688f81b0dChris Lattner 1084d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner outs() << "\n\n"; 1085dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1086dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // Compute the maximum argument length... 1087dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner MaxArgLen = 0; 108834cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng for (size_t i = 0, e = Opts.size(); i != e; ++i) 10890fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner MaxArgLen = std::max(MaxArgLen, Opts[i].second->getOptionWidth()); 1090dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1091d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner outs() << "OPTIONS:\n"; 109234cd4a484e532cc463fd5a4bf59b88d13c5467c1Evan Cheng for (size_t i = 0, e = Opts.size(); i != e; ++i) 10930fd48b1f1ce923828460fe097faa968b3ea28cb7Chris Lattner Opts[i].second->printOptionInfo(MaxArgLen); 1094dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1095c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner // Print any extra help the user has declared. 109690aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner for (std::vector<const char *>::iterator I = MoreHelp->begin(), 109790aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner E = MoreHelp->end(); I != E; ++I) 1098d9ea85ab01fb0f2929ed50223d3758dceea8bcbdChris Lattner outs() << *I; 109990aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner MoreHelp->clear(); 1100ad0846bd8be0a86e0277e1890fd280c9868f830aReid Spencer 11019bbba091396922093687d11a181e5886c42c5dfdReid Spencer // Halt the program since help information was printed 1102331de23705a719514e37c211f327379688f81b0dChris Lattner exit(1); 1103dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 1104331de23705a719514e37c211f327379688f81b0dChris Lattner}; 1105500d8bff2077ac327deec076fc8793e740b358c0Chris Lattner} // End anonymous namespace 1106dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1107331de23705a719514e37c211f327379688f81b0dChris Lattner// Define the two HelpPrinter instances that are used to print out help, or 1108331de23705a719514e37c211f327379688f81b0dChris Lattner// help-hidden... 1109331de23705a719514e37c211f327379688f81b0dChris Lattner// 1110500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic HelpPrinter NormalPrinter(false); 1111500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic HelpPrinter HiddenPrinter(true); 1112331de23705a719514e37c211f327379688f81b0dChris Lattner 1113500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic cl::opt<HelpPrinter, true, parser<bool> > 11144bf7afcc271138512c38ab2e4a348e2fe6164140Chris LattnerHOp("help", cl::desc("Display available options (--help-hidden for more)"), 11159b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner cl::location(NormalPrinter), cl::ValueDisallowed); 1116dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1117500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic cl::opt<HelpPrinter, true, parser<bool> > 11184bf7afcc271138512c38ab2e4a348e2fe6164140Chris LattnerHHOp("help-hidden", cl::desc("Display all available options"), 11199b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner cl::location(HiddenPrinter), cl::Hidden, cl::ValueDisallowed); 1120dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1121500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic void (*OverrideVersionPrinter)() = 0; 1122515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer 1123bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattnerstatic int TargetArraySortFn(const void *LHS, const void *RHS) { 1124bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattner typedef std::pair<const char *, const Target*> pair_ty; 1125bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattner return strcmp(((const pair_ty*)LHS)->first, ((const pair_ty*)RHS)->first); 1126bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattner} 1127bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattner 1128500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnernamespace { 1129515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencerclass VersionPrinter { 1130515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencerpublic: 1131aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel void print() { 1132d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer outs() << "Low Level Virtual Machine (http://llvm.org/):\n" 1133d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer << " " << PACKAGE_NAME << " version " << PACKAGE_VERSION; 11343fc2f4e83f3317f592c06e2ae7d9f1832210decbChris Lattner#ifdef LLVM_VERSION_INFO 1135d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer outs() << LLVM_VERSION_INFO; 11363fc2f4e83f3317f592c06e2ae7d9f1832210decbChris Lattner#endif 1137d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer outs() << "\n "; 11383fc2f4e83f3317f592c06e2ae7d9f1832210decbChris Lattner#ifndef __OPTIMIZE__ 1139d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer outs() << "DEBUG build"; 1140515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer#else 1141d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer outs() << "Optimized build"; 11423fc2f4e83f3317f592c06e2ae7d9f1832210decbChris Lattner#endif 11433fc2f4e83f3317f592c06e2ae7d9f1832210decbChris Lattner#ifndef NDEBUG 1144d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer outs() << " with assertions"; 1145515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer#endif 1146d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer outs() << ".\n" 1147d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer << " Built " << __DATE__ << " (" << __TIME__ << ").\n" 1148b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner << " Host: " << sys::getHostTriple() << '\n' 1149d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer << "\n" 1150d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer << " Registered Targets:\n"; 1151d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer 1152bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattner std::vector<std::pair<const char *, const Target*> > Targets; 1153d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer size_t Width = 0; 1154d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer for (TargetRegistry::iterator it = TargetRegistry::begin(), 1155d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer ie = TargetRegistry::end(); it != ie; ++it) { 1156d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer Targets.push_back(std::make_pair(it->getName(), &*it)); 1157bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattner Width = std::max(Width, strlen(Targets.back().first)); 1158d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer } 1159bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattner if (!Targets.empty()) 1160bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattner qsort(&Targets[0], Targets.size(), sizeof(Targets[0]), 1161bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattner TargetArraySortFn); 1162603bea32743dc9914a1d32ae36fc64fe497af801Daniel Dunbar 1163d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer for (unsigned i = 0, e = Targets.size(); i != e; ++i) { 1164b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner outs() << " " << Targets[i].first; 1165bc2d9d3de51368091601dcd34ae9556d4f9f52c0Chris Lattner outs().indent(Width - strlen(Targets[i].first)) << " - " 1166b168737a7479bc5c1cfdf62f8cc0f9ad652c2676Chris Lattner << Targets[i].second->getShortDescription() << '\n'; 1167d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer } 1168d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer if (Targets.empty()) 1169d227a3fb1af350ad32b06cd9b2357f7084e46dcbBenjamin Kramer outs() << " (none)\n"; 1170aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel } 1171aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel void operator=(bool OptionWasSpecified) { 1172043b8b5bb2a54133549fbf08e78345a5d086328aChris Lattner if (!OptionWasSpecified) return; 1173043b8b5bb2a54133549fbf08e78345a5d086328aChris Lattner 1174043b8b5bb2a54133549fbf08e78345a5d086328aChris Lattner if (OverrideVersionPrinter == 0) { 1175043b8b5bb2a54133549fbf08e78345a5d086328aChris Lattner print(); 1176043b8b5bb2a54133549fbf08e78345a5d086328aChris Lattner exit(1); 1177515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer } 1178043b8b5bb2a54133549fbf08e78345a5d086328aChris Lattner (*OverrideVersionPrinter)(); 1179043b8b5bb2a54133549fbf08e78345a5d086328aChris Lattner exit(1); 1180515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer } 1181515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer}; 1182500d8bff2077ac327deec076fc8793e740b358c0Chris Lattner} // End anonymous namespace 1183515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer 1184515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer 118569105f33c190621a6b1ad61f925b1a9e6b0512afReid Spencer// Define the --version option that prints out the LLVM version for the tool 1186500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic VersionPrinter VersionPrinterInstance; 1187500d8bff2077ac327deec076fc8793e740b358c0Chris Lattner 1188500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic cl::opt<VersionPrinter, true, parser<bool> > 11894bf7afcc271138512c38ab2e4a348e2fe6164140Chris LattnerVersOp("version", cl::desc("Display the version of this program"), 119069105f33c190621a6b1ad61f925b1a9e6b0512afReid Spencer cl::location(VersionPrinterInstance), cl::ValueDisallowed); 119169105f33c190621a6b1ad61f925b1a9e6b0512afReid Spencer 11929bbba091396922093687d11a181e5886c42c5dfdReid Spencer// Utility function for printing the help message. 11939bbba091396922093687d11a181e5886c42c5dfdReid Spencervoid cl::PrintHelpMessage() { 1194f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman // This looks weird, but it actually prints the help message. The 11955cc498f116cd76235c9c0a2ded46bc29f8fb35e0Reid Spencer // NormalPrinter variable is a HelpPrinter and the help gets printed when 11965cc498f116cd76235c9c0a2ded46bc29f8fb35e0Reid Spencer // its operator= is invoked. That's because the "normal" usages of the 1197f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman // help printer is to be assigned true/false depending on whether the 11985cc498f116cd76235c9c0a2ded46bc29f8fb35e0Reid Spencer // --help option was given or not. Since we're circumventing that we have 11995cc498f116cd76235c9c0a2ded46bc29f8fb35e0Reid Spencer // to make it look like --help was given, so we assign true. 12009bbba091396922093687d11a181e5886c42c5dfdReid Spencer NormalPrinter = true; 12019bbba091396922093687d11a181e5886c42c5dfdReid Spencer} 1202515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer 1203aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel/// Utility function for printing version number. 1204aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patelvoid cl::PrintVersionMessage() { 1205aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel VersionPrinterInstance.print(); 1206aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel} 1207aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel 1208515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencervoid cl::SetVersionPrinter(void (*func)()) { 1209515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer OverrideVersionPrinter = func; 1210515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer} 1211