CommandLine.cpp revision 82a13c9c4811e40d0ff858c508cb54d672ee926e
1dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner//===-- CommandLine.cpp - Command line parser implementation --------------===// 2f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman// 3b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// The LLVM Compiler Infrastructure 4b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// 5b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// This file was developed by the LLVM research group and is distributed under 6b576c94c15af9a440f69d9d03c2afead7971118cJohn Criswell// the University of Illinois Open Source 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/Config/config.h" 20551ccae044b0ff658fe629dd67edd5ffe75d10e8Reid Spencer#include "llvm/Support/CommandLine.h" 2190aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner#include "llvm/Support/ManagedStatic.h" 22fe6b146dcd09f488b12c7ff888ead9cedc92c2a6Bill Wendling#include "llvm/Support/Streams.h" 236f4c60770cfe6c485cdcb1397df59d2c7778cbc9Reid Spencer#include "llvm/System/Path.h" 24dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner#include <algorithm> 25786e3e22a98ce45782932478f76cf8007fb73ec4Duraid Madina#include <functional> 26dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner#include <map> 271a097e30d39e60303ae2b19f7a56e813f3e3c18eBill Wendling#include <ostream> 28dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner#include <set> 292d6a2360036cf511af0a06f9720e6a1752779d1cBrian Gaeke#include <cstdlib> 302d6a2360036cf511af0a06f9720e6a1752779d1cBrian Gaeke#include <cerrno> 315114004110d771e2cc838be569207784f2519010Chris Lattner#include <cstring> 322cdd21c2e4d855500dfb53f77aa74da53ccf9de6Chris Lattnerusing namespace llvm; 33dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattnerusing namespace cl; 34dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 357422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner//===----------------------------------------------------------------------===// 367422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner// Template instantiations and anchors. 377422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner// 387422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<bool>); 3981da02b553b86868637f27b89c6e919c31ed5b51Dale JohannesenTEMPLATE_INSTANTIATION(class basic_parser<boolOrDefault>); 407422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<int>); 417422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<unsigned>); 427422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<double>); 437422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<float>); 447422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class basic_parser<std::string>); 457422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner 467422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class opt<unsigned>); 477422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class opt<int>); 487422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class opt<std::string>); 497422a761008ef63152417c5e69ddc31252fb6b10Chris LattnerTEMPLATE_INSTANTIATION(class opt<bool>); 507422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner 517422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid Option::anchor() {} 527422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid basic_parser_impl::anchor() {} 537422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<bool>::anchor() {} 5481da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesenvoid parser<boolOrDefault>::anchor() {} 557422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<int>::anchor() {} 567422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<unsigned>::anchor() {} 577422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<double>::anchor() {} 587422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<float>::anchor() {} 597422a761008ef63152417c5e69ddc31252fb6b10Chris Lattnervoid parser<std::string>::anchor() {} 607422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner 617422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner//===----------------------------------------------------------------------===// 627422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner 63efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner// Globals for name and overview of program. Program name is not a string to 64efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner// avoid static ctor/dtor issues. 65efa3da5593117eab5209c9197cad5ca42213c12eChris Lattnerstatic char ProgramName[80] = "<premain>"; 66e1cc150a8e6b451e42b04b04ffb41596e01bbef5Reid Spencerstatic const char *ProgramOverview = 0; 67e1cc150a8e6b451e42b04b04ffb41596e01bbef5Reid Spencer 68c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner// This collects additional help to be printed. 6990aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattnerstatic ManagedStatic<std::vector<const char*> > MoreHelp; 70c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner 7190aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattnerextrahelp::extrahelp(const char *Help) 72c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner : morehelp(Help) { 7390aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner MoreHelp->push_back(Help); 74c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner} 75c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner 7669d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattnerstatic bool OptionListChanged = false; 7769d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner 7869d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner// MarkOptionsChanged - Internal helper function. 7969d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattnervoid cl::MarkOptionsChanged() { 8069d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner OptionListChanged = true; 8169d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner} 8269d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner 839878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner/// RegisteredOptionList - This is the list of the command line options that 849878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner/// have statically constructed themselves. 859878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattnerstatic Option *RegisteredOptionList = 0; 869878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 879878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattnervoid Option::addArgument() { 889878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner assert(NextRegistered == 0 && "argument multiply registered!"); 899878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 909878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner NextRegistered = RegisteredOptionList; 919878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner RegisteredOptionList = this; 9269d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner MarkOptionsChanged(); 939878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner} 949878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 9569d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner 96331de23705a719514e37c211f327379688f81b0dChris Lattner//===----------------------------------------------------------------------===// 977422a761008ef63152417c5e69ddc31252fb6b10Chris Lattner// Basic, shared command line option processing machinery. 98331de23705a719514e37c211f327379688f81b0dChris Lattner// 99331de23705a719514e37c211f327379688f81b0dChris Lattner 1009878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner/// GetOptionInfo - Scan the list of registered options, turning them into data 1019878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner/// structures that are easier to handle. 1029878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattnerstatic void GetOptionInfo(std::vector<Option*> &PositionalOpts, 1039878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::map<std::string, Option*> &OptionsMap) { 1049878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::vector<const char*> OptionNames; 105ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner Option *CAOpt = 0; // The ConsumeAfter option if it exists. 1069878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner for (Option *O = RegisteredOptionList; O; O = O->getNextRegisteredOption()) { 1079878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // If this option wants to handle multiple option names, get the full set. 1089878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // This handles enum options like "-O1 -O2" etc. 1099878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner O->getExtraOptionNames(OptionNames); 1109878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (O->ArgStr[0]) 1119878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner OptionNames.push_back(O->ArgStr); 1129878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 1139878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // Handle named options. 1149878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner for (unsigned i = 0, e = OptionNames.size(); i != e; ++i) { 1159878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // Add argument to the argument map! 1169878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (!OptionsMap.insert(std::pair<std::string,Option*>(OptionNames[i], 1179878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner O)).second) { 1189878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner cerr << ProgramName << ": CommandLine Error: Argument '" 1199878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner << OptionNames[0] << "' defined more than once!\n"; 1209878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner } 1219878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner } 1229878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 1239878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner OptionNames.clear(); 1249878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 1259878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // Remember information about positional options. 1269878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (O->getFormattingFlag() == cl::Positional) 1279878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner PositionalOpts.push_back(O); 1289878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner else if (O->getNumOccurrencesFlag() == cl::ConsumeAfter) { 129ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner if (CAOpt) 1309878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner O->error("Cannot specify more than one option with cl::ConsumeAfter!"); 131ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner CAOpt = O; 1329878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner } 133e8e258b1a7e54a77c802e8b309d0a60a62d1a00dChris Lattner } 134ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner 135ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner if (CAOpt) 136ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner PositionalOpts.push_back(CAOpt); 137ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner 138ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner // Make sure that they are in order of registration not backwards. 139ee2b32082eff7366621ed2ab119deb96b7c26cecChris Lattner std::reverse(PositionalOpts.begin(), PositionalOpts.end()); 140e8e258b1a7e54a77c802e8b309d0a60a62d1a00dChris Lattner} 141e8e258b1a7e54a77c802e8b309d0a60a62d1a00dChris Lattner 1429878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 143af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner/// LookupOption - Lookup the option specified by the specified option on the 144af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner/// command line. If there is a value specified (after an equal sign) return 145af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner/// that as well. 1469878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattnerstatic Option *LookupOption(const char *&Arg, const char *&Value, 1479878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::map<std::string, Option*> &OptionsMap) { 148af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner while (*Arg == '-') ++Arg; // Eat leading dashes 149af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner 150af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner const char *ArgEnd = Arg; 151af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner while (*ArgEnd && *ArgEnd != '=') 152af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner ++ArgEnd; // Scan till end of argument name. 153af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner 154af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner if (*ArgEnd == '=') // If we have an equals sign... 155af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner Value = ArgEnd+1; // Get the value, not the equals 156af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner 157af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner 158af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner if (*Arg == 0) return 0; 159af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner 160af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner // Look up the option. 161af035f3460f7d758f73987c3f692faf8d6cae062Chris Lattner std::map<std::string, Option*>::iterator I = 1629878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner OptionsMap.find(std::string(Arg, ArgEnd)); 1639878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner return I != OptionsMap.end() ? I->second : 0; 164dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 165dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 166caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattnerstatic inline bool ProvideOption(Option *Handler, const char *ArgName, 167caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner const char *Value, int argc, char **argv, 168caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner int &i) { 169caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner // Enforce value requirements 170caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner switch (Handler->getValueExpectedFlag()) { 171caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner case ValueRequired: 1726d5857e139df71410e98ccf6cd0e783f90a9fc16Chris Lattner if (Value == 0) { // No value specified? 173caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner if (i+1 < argc) { // Steal the next argument, like for '-o filename' 174caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner Value = argv[++i]; 175caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner } else { 176caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner return Handler->error(" requires a value!"); 177caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner } 178caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner } 179caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner break; 180caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner case ValueDisallowed: 1816d5857e139df71410e98ccf6cd0e783f90a9fc16Chris Lattner if (Value) 182f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman return Handler->error(" does not allow a value! '" + 183ca6433f233b7ed432916ba07976f9a4e9e0767b0Chris Lattner std::string(Value) + "' specified."); 184caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner break; 185f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman case ValueOptional: 186e1cc150a8e6b451e42b04b04ffb41596e01bbef5Reid Spencer break; 187f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman default: 188e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << ProgramName 189e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << ": Bad ValueMask flag! CommandLine usage error:" 190e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << Handler->getValueExpectedFlag() << "\n"; 191e1cc150a8e6b451e42b04b04ffb41596e01bbef5Reid Spencer abort(); 192e1cc150a8e6b451e42b04b04ffb41596e01bbef5Reid Spencer break; 193caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner } 194caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner 195caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner // Run the handler now! 1966d5857e139df71410e98ccf6cd0e783f90a9fc16Chris Lattner return Handler->addOccurrence(i, ArgName, Value ? Value : ""); 197caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner} 198caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner 199f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukmanstatic bool ProvidePositionalOption(Option *Handler, const std::string &Arg, 2001e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer int i) { 2011e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer int Dummy = i; 2029cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner return ProvideOption(Handler, Handler->ArgStr, Arg.c_str(), 0, 0, Dummy); 203331de23705a719514e37c211f327379688f81b0dChris Lattner} 204331de23705a719514e37c211f327379688f81b0dChris Lattner 205331de23705a719514e37c211f327379688f81b0dChris Lattner 206331de23705a719514e37c211f327379688f81b0dChris Lattner// Option predicates... 207331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic inline bool isGrouping(const Option *O) { 208331de23705a719514e37c211f327379688f81b0dChris Lattner return O->getFormattingFlag() == cl::Grouping; 209331de23705a719514e37c211f327379688f81b0dChris Lattner} 210331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic inline bool isPrefixedOrGrouping(const Option *O) { 211331de23705a719514e37c211f327379688f81b0dChris Lattner return isGrouping(O) || O->getFormattingFlag() == cl::Prefix; 212331de23705a719514e37c211f327379688f81b0dChris Lattner} 213331de23705a719514e37c211f327379688f81b0dChris Lattner 214331de23705a719514e37c211f327379688f81b0dChris Lattner// getOptionPred - Check to see if there are any options that satisfy the 215331de23705a719514e37c211f327379688f81b0dChris Lattner// specified predicate with names that are the prefixes in Name. This is 216331de23705a719514e37c211f327379688f81b0dChris Lattner// checked by progressively stripping characters off of the name, checking to 217331de23705a719514e37c211f327379688f81b0dChris Lattner// see if there options that satisfy the predicate. If we find one, return it, 218331de23705a719514e37c211f327379688f81b0dChris Lattner// otherwise return null. 219f78032fe064bdd2b9a19b875261747b7d0a27a73Chris Lattner// 220331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic Option *getOptionPred(std::string Name, unsigned &Length, 2219878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner bool (*Pred)(const Option*), 2229878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::map<std::string, Option*> &OptionsMap) { 223f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 2249878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::map<std::string, Option*>::iterator OMI = OptionsMap.find(Name); 2259878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (OMI != OptionsMap.end() && Pred(OMI->second)) { 226331de23705a719514e37c211f327379688f81b0dChris Lattner Length = Name.length(); 2279878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner return OMI->second; 228331de23705a719514e37c211f327379688f81b0dChris Lattner } 229f78032fe064bdd2b9a19b875261747b7d0a27a73Chris Lattner 230331de23705a719514e37c211f327379688f81b0dChris Lattner if (Name.size() == 1) return 0; 231331de23705a719514e37c211f327379688f81b0dChris Lattner do { 232331de23705a719514e37c211f327379688f81b0dChris Lattner Name.erase(Name.end()-1, Name.end()); // Chop off the last character... 2339878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner OMI = OptionsMap.find(Name); 234331de23705a719514e37c211f327379688f81b0dChris Lattner 235331de23705a719514e37c211f327379688f81b0dChris Lattner // Loop while we haven't found an option and Name still has at least two 236331de23705a719514e37c211f327379688f81b0dChris Lattner // characters in it (so that the next iteration will not be the empty 237331de23705a719514e37c211f327379688f81b0dChris Lattner // string... 2389878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner } while ((OMI == OptionsMap.end() || !Pred(OMI->second)) && Name.size() > 1); 239331de23705a719514e37c211f327379688f81b0dChris Lattner 2409878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (OMI != OptionsMap.end() && Pred(OMI->second)) { 241331de23705a719514e37c211f327379688f81b0dChris Lattner Length = Name.length(); 2429878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner return OMI->second; // Found one! 243f78032fe064bdd2b9a19b875261747b7d0a27a73Chris Lattner } 244331de23705a719514e37c211f327379688f81b0dChris Lattner return 0; // No option found! 245331de23705a719514e37c211f327379688f81b0dChris Lattner} 246f78032fe064bdd2b9a19b875261747b7d0a27a73Chris Lattner 247331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic bool RequiresValue(const Option *O) { 248dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman return O->getNumOccurrencesFlag() == cl::Required || 249dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman O->getNumOccurrencesFlag() == cl::OneOrMore; 250331de23705a719514e37c211f327379688f81b0dChris Lattner} 251331de23705a719514e37c211f327379688f81b0dChris Lattner 252331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic bool EatsUnboundedNumberOfValues(const Option *O) { 253dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman return O->getNumOccurrencesFlag() == cl::ZeroOrMore || 254dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman O->getNumOccurrencesFlag() == cl::OneOrMore; 255f78032fe064bdd2b9a19b875261747b7d0a27a73Chris Lattner} 256caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner 257c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke/// ParseCStringVector - Break INPUT up wherever one or more 258c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke/// whitespace characters are found, and store the resulting tokens in 259c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke/// OUTPUT. The tokens stored in OUTPUT are dynamically allocated 260c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke/// using strdup (), so it is the caller's responsibility to free () 261c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke/// them later. 26206b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// 263232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattnerstatic void ParseCStringVector(std::vector<char *> &output, 264232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner const char *input) { 265c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Characters which will be treated as token separators: 266c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke static const char *delims = " \v\f\t\r\n"; 267c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke 26806b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke std::string work (input); 269c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Skip past any delims at head of input string. 270c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke size_t pos = work.find_first_not_of (delims); 271c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // If the string consists entirely of delims, then exit early. 272c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke if (pos == std::string::npos) return; 273c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Otherwise, jump forward to beginning of first word. 27406b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke work = work.substr (pos); 275c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Find position of first delimiter. 27606b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke pos = work.find_first_of (delims); 277c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke 278c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke while (!work.empty() && pos != std::string::npos) { 279c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Everything from 0 to POS is the next word to copy. 280c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke output.push_back (strdup (work.substr (0,pos).c_str ())); 281c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Is there another word in the string? 282c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke size_t nextpos = work.find_first_not_of (delims, pos + 1); 283c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke if (nextpos != std::string::npos) { 284c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Yes? Then remove delims from beginning ... 28506b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke work = work.substr (work.find_first_not_of (delims, pos + 1)); 286c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // and find the end of the word. 28706b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke pos = work.find_first_of (delims); 28806b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke } else { 289c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // No? (Remainder of string is delims.) End the loop. 29006b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke work = ""; 291c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke pos = std::string::npos; 29206b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke } 29306b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke } 29406b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke 295c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // If `input' ended with non-delim char, then we'll get here with 296c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // the last word of `input' in `work'; copy it now. 297c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke if (!work.empty ()) { 298c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke output.push_back (strdup (work.c_str ())); 29906b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke } 30006b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke} 30106b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke 30206b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// ParseEnvironmentOptions - An alternative entry point to the 30306b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// CommandLine library, which allows you to read the program's name 30406b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// from the caller (as PROGNAME) and its command-line arguments from 30506b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// an environment variable (whose name is given in ENVVAR). 30606b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke/// 307bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattnervoid cl::ParseEnvironmentOptions(const char *progName, const char *envVar, 308bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner const char *Overview) { 309c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Check args. 310bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner assert(progName && "Program name not specified"); 311bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner assert(envVar && "Environment variable name missing"); 312f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 31306b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke // Get the environment variable they want us to parse options out of. 314232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner const char *envValue = getenv(envVar); 315c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke if (!envValue) 31606b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke return; 317c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke 318c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Get program's "name", which we wouldn't know without the caller 319c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // telling us. 320232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner std::vector<char*> newArgv; 321232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner newArgv.push_back(strdup(progName)); 32206b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke 32306b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke // Parse the value of the environment variable into a "command line" 32406b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke // and hand it off to ParseCommandLineOptions(). 325232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner ParseCStringVector(newArgv, envValue); 326232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner int newArgc = newArgv.size(); 327232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner ParseCommandLineOptions(newArgc, &newArgv[0], Overview); 328c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke 329c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke // Free all the strdup()ed strings. 330232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner for (std::vector<char*>::iterator i = newArgv.begin(), e = newArgv.end(); 331232885873fb0081acc1420ab83b14ab6f8eba280Chris Lattner i != e; ++i) 332c48ef2ae36e2169872a828a5399ccd1993837915Brian Gaeke free (*i); 33306b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke} 33406b06c5f00acffdab8c59e3dc5baca3eacca172aBrian Gaeke 335dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattnervoid cl::ParseCommandLineOptions(int &argc, char **argv, 3360c0edf8afc35a42b15a24ebb5fa5f3fc674290aeChris Lattner const char *Overview) { 3379878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // Process all registered options. 3389878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::vector<Option*> PositionalOpts; 3399878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::map<std::string, Option*> Opts; 3409878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner GetOptionInfo(PositionalOpts, Opts); 3419878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 3429878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner assert((!Opts.empty() || !PositionalOpts.empty()) && 3439878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner "No options specified!"); 3446f4c60770cfe6c485cdcb1397df59d2c7778cbc9Reid Spencer sys::Path progname(argv[0]); 345efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner 346efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner // Copy the program name into ProgName, making sure not to overflow it. 347efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner std::string ProgName = sys::Path(argv[0]).getLast(); 348efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner if (ProgName.size() > 79) ProgName.resize(79); 349efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner strcpy(ProgramName, ProgName.c_str()); 350efa3da5593117eab5209c9197cad5ca42213c12eChris Lattner 351dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner ProgramOverview = Overview; 352dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner bool ErrorParsing = false; 353dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 354331de23705a719514e37c211f327379688f81b0dChris Lattner // Check out the positional arguments to collect information about them. 355331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned NumPositionalRequired = 0; 356de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner 357de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner // Determine whether or not there are an unlimited number of positionals 358de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner bool HasUnlimitedPositionals = false; 359de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner 360331de23705a719514e37c211f327379688f81b0dChris Lattner Option *ConsumeAfterOpt = 0; 361331de23705a719514e37c211f327379688f81b0dChris Lattner if (!PositionalOpts.empty()) { 362dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman if (PositionalOpts[0]->getNumOccurrencesFlag() == cl::ConsumeAfter) { 363331de23705a719514e37c211f327379688f81b0dChris Lattner assert(PositionalOpts.size() > 1 && 364331de23705a719514e37c211f327379688f81b0dChris Lattner "Cannot specify cl::ConsumeAfter without a positional argument!"); 365331de23705a719514e37c211f327379688f81b0dChris Lattner ConsumeAfterOpt = PositionalOpts[0]; 366331de23705a719514e37c211f327379688f81b0dChris Lattner } 367331de23705a719514e37c211f327379688f81b0dChris Lattner 368331de23705a719514e37c211f327379688f81b0dChris Lattner // Calculate how many positional values are _required_. 369331de23705a719514e37c211f327379688f81b0dChris Lattner bool UnboundedFound = false; 370331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned i = ConsumeAfterOpt != 0, e = PositionalOpts.size(); 371331de23705a719514e37c211f327379688f81b0dChris Lattner i != e; ++i) { 372331de23705a719514e37c211f327379688f81b0dChris Lattner Option *Opt = PositionalOpts[i]; 373331de23705a719514e37c211f327379688f81b0dChris Lattner if (RequiresValue(Opt)) 374331de23705a719514e37c211f327379688f81b0dChris Lattner ++NumPositionalRequired; 375331de23705a719514e37c211f327379688f81b0dChris Lattner else if (ConsumeAfterOpt) { 376331de23705a719514e37c211f327379688f81b0dChris Lattner // ConsumeAfter cannot be combined with "optional" positional options 37754ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner // unless there is only one positional argument... 37854ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner if (PositionalOpts.size() > 2) 37954ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner ErrorParsing |= 38054ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner Opt->error(" error - this positional option will never be matched, " 38154ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner "because it does not Require a value, and a " 38254ec7aed89e4a5d8cc11c36999d88012cbfcc18aChris Lattner "cl::ConsumeAfter option is active!"); 3839cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner } else if (UnboundedFound && !Opt->ArgStr[0]) { 3849cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // This option does not "require" a value... Make sure this option is 3859cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // not specified after an option that eats all extra arguments, or this 3869cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // one will never get any! 387331de23705a719514e37c211f327379688f81b0dChris Lattner // 388331de23705a719514e37c211f327379688f81b0dChris Lattner ErrorParsing |= Opt->error(" error - option can never match, because " 389331de23705a719514e37c211f327379688f81b0dChris Lattner "another positional argument will match an " 390331de23705a719514e37c211f327379688f81b0dChris Lattner "unbounded number of values, and this option" 391331de23705a719514e37c211f327379688f81b0dChris Lattner " does not require a value!"); 392331de23705a719514e37c211f327379688f81b0dChris Lattner } 393331de23705a719514e37c211f327379688f81b0dChris Lattner UnboundedFound |= EatsUnboundedNumberOfValues(Opt); 394331de23705a719514e37c211f327379688f81b0dChris Lattner } 39521e1a79a31fe45fcd861d64118a60c1fcfad618aChris Lattner HasUnlimitedPositionals = UnboundedFound || ConsumeAfterOpt; 396331de23705a719514e37c211f327379688f81b0dChris Lattner } 397331de23705a719514e37c211f327379688f81b0dChris Lattner 3981e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer // PositionalVals - A vector of "positional" arguments we accumulate into 3991e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer // the process at the end... 400331de23705a719514e37c211f327379688f81b0dChris Lattner // 4011e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer std::vector<std::pair<std::string,unsigned> > PositionalVals; 402331de23705a719514e37c211f327379688f81b0dChris Lattner 4039cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // If the program has named positional arguments, and the name has been run 4049cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // across, keep track of which positional argument was named. Otherwise put 4059cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // the positional args into the PositionalVals list... 4069cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner Option *ActivePositionalArg = 0; 4079cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner 408dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // Loop over all of the arguments... processing them. 409331de23705a719514e37c211f327379688f81b0dChris Lattner bool DashDashFound = false; // Have we read '--'? 410dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner for (int i = 1; i < argc; ++i) { 411dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner Option *Handler = 0; 4126d5857e139df71410e98ccf6cd0e783f90a9fc16Chris Lattner const char *Value = 0; 413dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner const char *ArgName = ""; 414331de23705a719514e37c211f327379688f81b0dChris Lattner 41569d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner // If the option list changed, this means that some command line 416159b0a43408e2521110e22e445ec126aaab16788Chris Lattner // option has just been registered or deregistered. This can occur in 417159b0a43408e2521110e22e445ec126aaab16788Chris Lattner // response to things like -load, etc. If this happens, rescan the options. 41869d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner if (OptionListChanged) { 419159b0a43408e2521110e22e445ec126aaab16788Chris Lattner PositionalOpts.clear(); 420159b0a43408e2521110e22e445ec126aaab16788Chris Lattner Opts.clear(); 421159b0a43408e2521110e22e445ec126aaab16788Chris Lattner GetOptionInfo(PositionalOpts, Opts); 42269d6f1358ca8c442a65fd8d5900f7296fbb2762dChris Lattner OptionListChanged = false; 423159b0a43408e2521110e22e445ec126aaab16788Chris Lattner } 424159b0a43408e2521110e22e445ec126aaab16788Chris Lattner 425331de23705a719514e37c211f327379688f81b0dChris Lattner // Check to see if this is a positional argument. This argument is 426331de23705a719514e37c211f327379688f81b0dChris Lattner // considered to be positional if it doesn't start with '-', if it is "-" 4271115e0483fc6da16d52382f159005baddf028063Misha Brukman // itself, or if we have seen "--" already. 428331de23705a719514e37c211f327379688f81b0dChris Lattner // 429331de23705a719514e37c211f327379688f81b0dChris Lattner if (argv[i][0] != '-' || argv[i][1] == 0 || DashDashFound) { 430331de23705a719514e37c211f327379688f81b0dChris Lattner // Positional argument! 4319cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner if (ActivePositionalArg) { 4321e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ProvidePositionalOption(ActivePositionalArg, argv[i], i); 4339cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner continue; // We are done! 4349cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner } else if (!PositionalOpts.empty()) { 4351e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals.push_back(std::make_pair(argv[i],i)); 436331de23705a719514e37c211f327379688f81b0dChris Lattner 437331de23705a719514e37c211f327379688f81b0dChris Lattner // All of the positional arguments have been fulfulled, give the rest to 438331de23705a719514e37c211f327379688f81b0dChris Lattner // the consume after option... if it's specified... 439331de23705a719514e37c211f327379688f81b0dChris Lattner // 440f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman if (PositionalVals.size() >= NumPositionalRequired && 441331de23705a719514e37c211f327379688f81b0dChris Lattner ConsumeAfterOpt != 0) { 442331de23705a719514e37c211f327379688f81b0dChris Lattner for (++i; i < argc; ++i) 4431e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals.push_back(std::make_pair(argv[i],i)); 444331de23705a719514e37c211f327379688f81b0dChris Lattner break; // Handle outside of the argument processing loop... 445331de23705a719514e37c211f327379688f81b0dChris Lattner } 446331de23705a719514e37c211f327379688f81b0dChris Lattner 447331de23705a719514e37c211f327379688f81b0dChris Lattner // Delay processing positional arguments until the end... 448331de23705a719514e37c211f327379688f81b0dChris Lattner continue; 449331de23705a719514e37c211f327379688f81b0dChris Lattner } 450bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner } else if (argv[i][0] == '-' && argv[i][1] == '-' && argv[i][2] == 0 && 451bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner !DashDashFound) { 452bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner DashDashFound = true; // This is the mythical "--"? 453bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner continue; // Don't try to process it as an argument itself. 454bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner } else if (ActivePositionalArg && 455bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner (ActivePositionalArg->getMiscFlags() & PositionalEatsArgs)) { 456bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner // If there is a positional argument eating options, check to see if this 457bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner // option is another positional argument. If so, treat it as an argument, 458bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner // otherwise feed it to the eating positional. 459dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner ArgName = argv[i]+1; 4609878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner Handler = LookupOption(ArgName, Value, Opts); 461bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner if (!Handler || Handler->getFormattingFlag() != cl::Positional) { 4621e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ProvidePositionalOption(ActivePositionalArg, argv[i], i); 463bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner continue; // We are done! 464331de23705a719514e37c211f327379688f81b0dChris Lattner } 465331de23705a719514e37c211f327379688f81b0dChris Lattner 466bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner } else { // We start with a '-', must be an argument... 467bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner ArgName = argv[i]+1; 4689878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner Handler = LookupOption(ArgName, Value, Opts); 469331de23705a719514e37c211f327379688f81b0dChris Lattner 470bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner // Check to see if this "option" is really a prefixed or grouped argument. 4715f8448f79c2876466d586f2e1caec89e6f070623Reid Spencer if (Handler == 0) { 472bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner std::string RealName(ArgName); 473bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner if (RealName.size() > 1) { 474331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned Length = 0; 4759878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner Option *PGOpt = getOptionPred(RealName, Length, isPrefixedOrGrouping, 4769878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner Opts); 477f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 478331de23705a719514e37c211f327379688f81b0dChris Lattner // If the option is a prefixed option, then the value is simply the 479331de23705a719514e37c211f327379688f81b0dChris Lattner // rest of the name... so fall through to later processing, by 480331de23705a719514e37c211f327379688f81b0dChris Lattner // setting up the argument name flags and value fields. 481331de23705a719514e37c211f327379688f81b0dChris Lattner // 482331de23705a719514e37c211f327379688f81b0dChris Lattner if (PGOpt && PGOpt->getFormattingFlag() == cl::Prefix) { 483bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner Value = ArgName+Length; 484bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner assert(Opts.find(std::string(ArgName, Value)) != Opts.end() && 485bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner Opts.find(std::string(ArgName, Value))->second == PGOpt); 486bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner Handler = PGOpt; 487331de23705a719514e37c211f327379688f81b0dChris Lattner } else if (PGOpt) { 488bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner // This must be a grouped option... handle them now. 489331de23705a719514e37c211f327379688f81b0dChris Lattner assert(isGrouping(PGOpt) && "Broken getOptionPred!"); 490f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 491331de23705a719514e37c211f327379688f81b0dChris Lattner do { 492331de23705a719514e37c211f327379688f81b0dChris Lattner // Move current arg name out of RealName into RealArgName... 493bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner std::string RealArgName(RealName.begin(), 494bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner RealName.begin() + Length); 495bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner RealName.erase(RealName.begin(), RealName.begin() + Length); 496f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 497b5c520bfb6505caaa6ad8468b372530d44c8b253Misha Brukman // Because ValueRequired is an invalid flag for grouped arguments, 498b5c520bfb6505caaa6ad8468b372530d44c8b253Misha Brukman // we don't need to pass argc/argv in... 499b5c520bfb6505caaa6ad8468b372530d44c8b253Misha Brukman // 500331de23705a719514e37c211f327379688f81b0dChris Lattner assert(PGOpt->getValueExpectedFlag() != cl::ValueRequired && 501331de23705a719514e37c211f327379688f81b0dChris Lattner "Option can not be cl::Grouping AND cl::ValueRequired!"); 502331de23705a719514e37c211f327379688f81b0dChris Lattner int Dummy; 503bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner ErrorParsing |= ProvideOption(PGOpt, RealArgName.c_str(), 5046d5857e139df71410e98ccf6cd0e783f90a9fc16Chris Lattner 0, 0, 0, Dummy); 505f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 506331de23705a719514e37c211f327379688f81b0dChris Lattner // Get the next grouping option... 5079878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner PGOpt = getOptionPred(RealName, Length, isGrouping, Opts); 508bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner } while (PGOpt && Length != RealName.size()); 509f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 510bf455c236001d5424dbda50fd145352f87f11ec1Chris Lattner Handler = PGOpt; // Ate all of the options. 511331de23705a719514e37c211f327379688f81b0dChris Lattner } 512b5c520bfb6505caaa6ad8468b372530d44c8b253Misha Brukman } 513dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 514dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 515dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 516dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner if (Handler == 0) { 517e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << ProgramName << ": Unknown command line argument '" 518e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << argv[i] << "'. Try: '" << argv[0] << " --help'\n"; 519dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner ErrorParsing = true; 520dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner continue; 521dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 522dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 52372fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner // Check to see if this option accepts a comma separated list of values. If 52472fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner // it does, we have to split up the value into multiple values... 5256d5857e139df71410e98ccf6cd0e783f90a9fc16Chris Lattner if (Value && Handler->getMiscFlags() & CommaSeparated) { 52672fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner std::string Val(Value); 52772fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner std::string::size_type Pos = Val.find(','); 52872fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner 52972fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner while (Pos != std::string::npos) { 53072fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner // Process the portion before the comma... 53172fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner ErrorParsing |= ProvideOption(Handler, ArgName, 53272fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner std::string(Val.begin(), 53372fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner Val.begin()+Pos).c_str(), 53472fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner argc, argv, i); 53572fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner // Erase the portion before the comma, AND the comma... 53672fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner Val.erase(Val.begin(), Val.begin()+Pos+1); 53772fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner Value += Pos+1; // Increment the original value pointer as well... 53872fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner 53972fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner // Check for another comma... 54072fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner Pos = Val.find(','); 54172fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner } 54272fb8e50820f6fcccae3a63935653ccd7b9ecf84Chris Lattner } 5439cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner 5449cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // If this is a named positional argument, just remember that it is the 5459cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner // active one... 5469cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner if (Handler->getFormattingFlag() == cl::Positional) 5479cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner ActivePositionalArg = Handler; 548f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman else 5499cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner ErrorParsing |= ProvideOption(Handler, ArgName, Value, argc, argv, i); 550331de23705a719514e37c211f327379688f81b0dChris Lattner } 551dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 552331de23705a719514e37c211f327379688f81b0dChris Lattner // Check and handle positional arguments now... 553331de23705a719514e37c211f327379688f81b0dChris Lattner if (NumPositionalRequired > PositionalVals.size()) { 554e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << ProgramName 555e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << ": Not enough positional command line arguments specified!\n" 556e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << "Must specify at least " << NumPositionalRequired 557e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << " positional arguments: See: " << argv[0] << " --help\n"; 55879959d21c7b2fb7bb970949b9a5227036cd50d39Chris Lattner 559331de23705a719514e37c211f327379688f81b0dChris Lattner ErrorParsing = true; 560de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner } else if (!HasUnlimitedPositionals 561de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner && PositionalVals.size() > PositionalOpts.size()) { 562e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << ProgramName 563e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << ": Too many positional arguments specified!\n" 564e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << "Can specify at most " << PositionalOpts.size() 565e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << " positional arguments: See: " << argv[0] << " --help\n"; 566de0132453e2939488c2d69290bfdfb2cde94a0afChris Lattner ErrorParsing = true; 567331de23705a719514e37c211f327379688f81b0dChris Lattner 568331de23705a719514e37c211f327379688f81b0dChris Lattner } else if (ConsumeAfterOpt == 0) { 569331de23705a719514e37c211f327379688f81b0dChris Lattner // Positional args have already been handled if ConsumeAfter is specified... 570331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned ValNo = 0, NumVals = PositionalVals.size(); 571331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned i = 0, e = PositionalOpts.size(); i != e; ++i) { 572331de23705a719514e37c211f327379688f81b0dChris Lattner if (RequiresValue(PositionalOpts[i])) { 573f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman ProvidePositionalOption(PositionalOpts[i], PositionalVals[ValNo].first, 5741e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].second); 5751e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ValNo++; 576331de23705a719514e37c211f327379688f81b0dChris Lattner --NumPositionalRequired; // We fulfilled our duty... 577331de23705a719514e37c211f327379688f81b0dChris Lattner } 578331de23705a719514e37c211f327379688f81b0dChris Lattner 579331de23705a719514e37c211f327379688f81b0dChris Lattner // If we _can_ give this option more arguments, do so now, as long as we 580331de23705a719514e37c211f327379688f81b0dChris Lattner // do not give it values that others need. 'Done' controls whether the 581331de23705a719514e37c211f327379688f81b0dChris Lattner // option even _WANTS_ any more. 582331de23705a719514e37c211f327379688f81b0dChris Lattner // 583dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman bool Done = PositionalOpts[i]->getNumOccurrencesFlag() == cl::Required; 584331de23705a719514e37c211f327379688f81b0dChris Lattner while (NumVals-ValNo > NumPositionalRequired && !Done) { 585dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman switch (PositionalOpts[i]->getNumOccurrencesFlag()) { 586331de23705a719514e37c211f327379688f81b0dChris Lattner case cl::Optional: 587331de23705a719514e37c211f327379688f81b0dChris Lattner Done = true; // Optional arguments want _at most_ one value 588331de23705a719514e37c211f327379688f81b0dChris Lattner // FALL THROUGH 589331de23705a719514e37c211f327379688f81b0dChris Lattner case cl::ZeroOrMore: // Zero or more will take all they can get... 590331de23705a719514e37c211f327379688f81b0dChris Lattner case cl::OneOrMore: // One or more will take all they can get... 5911e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ProvidePositionalOption(PositionalOpts[i], 5921e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].first, 5931e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].second); 5941e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ValNo++; 595331de23705a719514e37c211f327379688f81b0dChris Lattner break; 596331de23705a719514e37c211f327379688f81b0dChris Lattner default: 597dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman assert(0 && "Internal error, unexpected NumOccurrences flag in " 598331de23705a719514e37c211f327379688f81b0dChris Lattner "positional argument processing!"); 599331de23705a719514e37c211f327379688f81b0dChris Lattner } 600331de23705a719514e37c211f327379688f81b0dChris Lattner } 601caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner } 602331de23705a719514e37c211f327379688f81b0dChris Lattner } else { 603331de23705a719514e37c211f327379688f81b0dChris Lattner assert(ConsumeAfterOpt && NumPositionalRequired <= PositionalVals.size()); 604331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned ValNo = 0; 605331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned j = 1, e = PositionalOpts.size(); j != e; ++j) 6061e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer if (RequiresValue(PositionalOpts[j])) { 607faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner ErrorParsing |= ProvidePositionalOption(PositionalOpts[j], 6081e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].first, 6091e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].second); 6101e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ValNo++; 6111e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer } 612faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner 613faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner // Handle the case where there is just one positional option, and it's 614faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner // optional. In this case, we want to give JUST THE FIRST option to the 615faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner // positional option and keep the rest for the consume after. The above 616faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner // loop would have assigned no values to positional options in this case. 617faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner // 6181e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer if (PositionalOpts.size() == 2 && ValNo == 0 && !PositionalVals.empty()) { 619faba809472e36fbb28394da6ed907d2652ca8b83Chris Lattner ErrorParsing |= ProvidePositionalOption(PositionalOpts[1], 6201e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].first, 6211e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].second); 6221e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer ValNo++; 6231e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer } 624f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman 625331de23705a719514e37c211f327379688f81b0dChris Lattner // Handle over all of the rest of the arguments to the 626331de23705a719514e37c211f327379688f81b0dChris Lattner // cl::ConsumeAfter command line option... 627331de23705a719514e37c211f327379688f81b0dChris Lattner for (; ValNo != PositionalVals.size(); ++ValNo) 628331de23705a719514e37c211f327379688f81b0dChris Lattner ErrorParsing |= ProvidePositionalOption(ConsumeAfterOpt, 6291e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].first, 6301e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer PositionalVals[ValNo].second); 631dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 632dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 633dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner // Loop over args and make sure all required args are specified! 634f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman for (std::map<std::string, Option*>::iterator I = Opts.begin(), 635b5c520bfb6505caaa6ad8468b372530d44c8b253Misha Brukman E = Opts.end(); I != E; ++I) { 636dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman switch (I->second->getNumOccurrencesFlag()) { 637dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner case Required: 638dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner case OneOrMore: 639dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman if (I->second->getNumOccurrences() == 0) { 640b5c520bfb6505caaa6ad8468b372530d44c8b253Misha Brukman I->second->error(" must be specified at least once!"); 641f038acbee21cfed998451aedd00a81901d299516Chris Lattner ErrorParsing = true; 642f038acbee21cfed998451aedd00a81901d299516Chris Lattner } 643dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner // Fall through 644dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner default: 645dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner break; 646dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner } 647dc4693dbcf164ec404a3a91c67cf1dbe5f45a8e5Chris Lattner } 648dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 649331de23705a719514e37c211f327379688f81b0dChris Lattner // Free all of the memory allocated to the map. Command line options may only 650331de23705a719514e37c211f327379688f81b0dChris Lattner // be processed once! 65190aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner Opts.clear(); 652331de23705a719514e37c211f327379688f81b0dChris Lattner PositionalOpts.clear(); 65390aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner MoreHelp->clear(); 654dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 655dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // If we had an error processing our arguments, don't let the program execute 656dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner if (ErrorParsing) exit(1); 657dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 658dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 659dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner//===----------------------------------------------------------------------===// 660dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// Option Base class implementation 661dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 662dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 663ca6433f233b7ed432916ba07976f9a4e9e0767b0Chris Lattnerbool Option::error(std::string Message, const char *ArgName) { 664dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner if (ArgName == 0) ArgName = ArgStr; 665331de23705a719514e37c211f327379688f81b0dChris Lattner if (ArgName[0] == 0) 666e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << HelpStr; // Be nice for positional arguments 667331de23705a719514e37c211f327379688f81b0dChris Lattner else 668e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << ProgramName << ": for the -" << ArgName; 669abe0e3e6410ca3f192b6a656cbcd042b05d0a68bJim Laskey 670e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cerr << " option: " << Message << "\n"; 671dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner return true; 672dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 673dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 6746d5857e139df71410e98ccf6cd0e783f90a9fc16Chris Lattnerbool Option::addOccurrence(unsigned pos, const char *ArgName, 6756d5857e139df71410e98ccf6cd0e783f90a9fc16Chris Lattner const std::string &Value) { 676dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman NumOccurrences++; // Increment the number of times we have been seen 677dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 678dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman switch (getNumOccurrencesFlag()) { 679dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner case Optional: 680dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman if (NumOccurrences > 1) 681dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner return error(": may only occur zero or one times!", ArgName); 682dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner break; 683dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner case Required: 684dd6cb6a43b78732f1a136583ccca4e715bae7d71Misha Brukman if (NumOccurrences > 1) 685dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner return error(": must occur exactly one time!", ArgName); 686dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // Fall through 687dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner case OneOrMore: 688caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner case ZeroOrMore: 689caccd761a6320d9068a44198b9e1b6c3659f8bb5Chris Lattner case ConsumeAfter: break; 690b5c520bfb6505caaa6ad8468b372530d44c8b253Misha Brukman default: return error(": bad num occurrences flag value!"); 691dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 692dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 6931e13fd23d34e53b63cb08c0fe54f0857757ec200Reid Spencer return handleOccurrence(pos, ArgName, Value); 694dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 695dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 696331de23705a719514e37c211f327379688f81b0dChris Lattner 697331de23705a719514e37c211f327379688f81b0dChris Lattner// getValueStr - Get the value description string, using "DefaultMsg" if nothing 698331de23705a719514e37c211f327379688f81b0dChris Lattner// has been specified yet. 699331de23705a719514e37c211f327379688f81b0dChris Lattner// 700331de23705a719514e37c211f327379688f81b0dChris Lattnerstatic const char *getValueStr(const Option &O, const char *DefaultMsg) { 701331de23705a719514e37c211f327379688f81b0dChris Lattner if (O.ValueStr[0] == 0) return DefaultMsg; 702331de23705a719514e37c211f327379688f81b0dChris Lattner return O.ValueStr; 703331de23705a719514e37c211f327379688f81b0dChris Lattner} 704331de23705a719514e37c211f327379688f81b0dChris Lattner 705331de23705a719514e37c211f327379688f81b0dChris Lattner//===----------------------------------------------------------------------===// 706331de23705a719514e37c211f327379688f81b0dChris Lattner// cl::alias class implementation 707331de23705a719514e37c211f327379688f81b0dChris Lattner// 708331de23705a719514e37c211f327379688f81b0dChris Lattner 709dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// Return the width of the option tag for printing... 710331de23705a719514e37c211f327379688f81b0dChris Lattnerunsigned alias::getOptionWidth() const { 711dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner return std::strlen(ArgStr)+6; 712dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 713dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 714a0de843535627977d107bbe84e4ad20cd2a5060aChris Lattner// Print out the option for the alias. 715331de23705a719514e37c211f327379688f81b0dChris Lattnervoid alias::printOptionInfo(unsigned GlobalWidth) const { 716dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner unsigned L = std::strlen(ArgStr); 717e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << " -" << ArgStr << std::string(GlobalWidth-L-6, ' ') << " - " 718e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << HelpStr << "\n"; 719dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 720dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 721dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 722331de23705a719514e37c211f327379688f81b0dChris Lattner 723dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner//===----------------------------------------------------------------------===// 724331de23705a719514e37c211f327379688f81b0dChris Lattner// Parser Implementation code... 725dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 726dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 7279b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// basic_parser implementation 7289b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// 7299b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 7309b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// Return the width of the option tag for printing... 7319b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattnerunsigned basic_parser_impl::getOptionWidth(const Option &O) const { 7329b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner unsigned Len = std::strlen(O.ArgStr); 7339b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner if (const char *ValName = getValueName()) 7349b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner Len += std::strlen(getValueStr(O, ValName))+3; 7359b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 7369b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner return Len + 6; 7379b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner} 7389b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 739f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman// printOptionInfo - Print out information about this option. The 7409b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// to-be-maintained width is specified. 7419b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// 7429b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattnervoid basic_parser_impl::printOptionInfo(const Option &O, 7439b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner unsigned GlobalWidth) const { 744e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << " -" << O.ArgStr; 7459b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 7469b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner if (const char *ValName = getValueName()) 747e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << "=<" << getValueStr(O, ValName) << ">"; 7489b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 749e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << std::string(GlobalWidth-getOptionWidth(O), ' ') << " - " 750e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << O.HelpStr << "\n"; 7519b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner} 7529b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 7539b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 7549b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 7559b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner 756331de23705a719514e37c211f327379688f81b0dChris Lattner// parser<bool> implementation 757331de23705a719514e37c211f327379688f81b0dChris Lattner// 7589b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattnerbool parser<bool>::parse(Option &O, const char *ArgName, 759ca6433f233b7ed432916ba07976f9a4e9e0767b0Chris Lattner const std::string &Arg, bool &Value) { 760f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" || 761dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner Arg == "1") { 762dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner Value = true; 763dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } else if (Arg == "false" || Arg == "FALSE" || Arg == "False" || Arg == "0") { 764dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner Value = false; 765dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } else { 766331de23705a719514e37c211f327379688f81b0dChris Lattner return O.error(": '" + Arg + 767331de23705a719514e37c211f327379688f81b0dChris Lattner "' is invalid value for boolean argument! Try 0 or 1"); 768dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 769dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner return false; 770dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 771dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 77281da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen// parser<boolOrDefault> implementation 77381da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen// 77481da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesenbool parser<boolOrDefault>::parse(Option &O, const char *ArgName, 77581da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen const std::string &Arg, boolOrDefault &Value) { 77681da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen if (Arg == "" || Arg == "true" || Arg == "TRUE" || Arg == "True" || 77781da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen Arg == "1") { 77881da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen Value = BOU_TRUE; 77981da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen } else if (Arg == "false" || Arg == "FALSE" || Arg == "False" || Arg == "0") { 78081da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen Value = BOU_FALSE; 78181da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen } else { 78281da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen return O.error(": '" + Arg + 78381da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen "' is invalid value for boolean argument! Try 0 or 1"); 78481da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen } 78581da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen return false; 78681da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen} 78781da02b553b86868637f27b89c6e919c31ed5b51Dale Johannesen 788331de23705a719514e37c211f327379688f81b0dChris Lattner// parser<int> implementation 789dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 7909b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattnerbool parser<int>::parse(Option &O, const char *ArgName, 791ca6433f233b7ed432916ba07976f9a4e9e0767b0Chris Lattner const std::string &Arg, int &Value) { 792331de23705a719514e37c211f327379688f81b0dChris Lattner char *End; 793d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner Value = (int)strtol(Arg.c_str(), &End, 0); 794f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman if (*End != 0) 795331de23705a719514e37c211f327379688f81b0dChris Lattner return O.error(": '" + Arg + "' value invalid for integer argument!"); 796331de23705a719514e37c211f327379688f81b0dChris Lattner return false; 797dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 798dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 799d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner// parser<unsigned> implementation 800d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner// 801d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattnerbool parser<unsigned>::parse(Option &O, const char *ArgName, 802d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner const std::string &Arg, unsigned &Value) { 803d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner char *End; 8042d6a2360036cf511af0a06f9720e6a1752779d1cBrian Gaeke errno = 0; 8052d6a2360036cf511af0a06f9720e6a1752779d1cBrian Gaeke unsigned long V = strtoul(Arg.c_str(), &End, 0); 806d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner Value = (unsigned)V; 8072d6a2360036cf511af0a06f9720e6a1752779d1cBrian Gaeke if (((V == ULONG_MAX) && (errno == ERANGE)) 8082d6a2360036cf511af0a06f9720e6a1752779d1cBrian Gaeke || (*End != 0) 8092d6a2360036cf511af0a06f9720e6a1752779d1cBrian Gaeke || (Value != V)) 810d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner return O.error(": '" + Arg + "' value invalid for uint argument!"); 811d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner return false; 812d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner} 813d2a6fc397ee982936dee7dd5692b1481bcd9fe8fChris Lattner 8149b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner// parser<double>/parser<float> implementation 815331de23705a719514e37c211f327379688f81b0dChris Lattner// 816ca6433f233b7ed432916ba07976f9a4e9e0767b0Chris Lattnerstatic bool parseDouble(Option &O, const std::string &Arg, double &Value) { 817331de23705a719514e37c211f327379688f81b0dChris Lattner const char *ArgStart = Arg.c_str(); 818331de23705a719514e37c211f327379688f81b0dChris Lattner char *End; 819331de23705a719514e37c211f327379688f81b0dChris Lattner Value = strtod(ArgStart, &End); 820f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman if (*End != 0) 821331de23705a719514e37c211f327379688f81b0dChris Lattner return O.error(": '" +Arg+ "' value invalid for floating point argument!"); 822dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner return false; 823dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 824dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 8259b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattnerbool parser<double>::parse(Option &O, const char *AN, 8269b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner const std::string &Arg, double &Val) { 8279b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner return parseDouble(O, Arg, Val); 828dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 829dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 8309b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattnerbool parser<float>::parse(Option &O, const char *AN, 8319b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner const std::string &Arg, float &Val) { 8329b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner double dVal; 8339b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner if (parseDouble(O, Arg, dVal)) 8349b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner return true; 8359b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner Val = (float)dVal; 8369b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner return false; 837dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 838dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 839dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 840dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 841331de23705a719514e37c211f327379688f81b0dChris Lattner// generic_parser_base implementation 842dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 843dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 844aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner// findOption - Return the option number corresponding to the specified 845aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner// argument string. If the option is not found, getNumOptions() is returned. 846aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner// 847aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattnerunsigned generic_parser_base::findOption(const char *Name) { 848aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner unsigned i = 0, e = getNumOptions(); 849ca6433f233b7ed432916ba07976f9a4e9e0767b0Chris Lattner std::string N(Name); 850aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner 851aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner while (i != e) 852aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner if (getOption(i) == N) 853aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner return i; 854aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner else 855aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner ++i; 856aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner return e; 857aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner} 858aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner 859aa852bbb503571d1198856fa4c6e099d7625e3b3Chris Lattner 860dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// Return the width of the option tag for printing... 861331de23705a719514e37c211f327379688f81b0dChris Lattnerunsigned generic_parser_base::getOptionWidth(const Option &O) const { 862331de23705a719514e37c211f327379688f81b0dChris Lattner if (O.hasArgStr()) { 863331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned Size = std::strlen(O.ArgStr)+6; 864331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned i = 0, e = getNumOptions(); i != e; ++i) 865331de23705a719514e37c211f327379688f81b0dChris Lattner Size = std::max(Size, (unsigned)std::strlen(getOption(i))+8); 866331de23705a719514e37c211f327379688f81b0dChris Lattner return Size; 867331de23705a719514e37c211f327379688f81b0dChris Lattner } else { 868331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned BaseSize = 0; 869331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned i = 0, e = getNumOptions(); i != e; ++i) 870331de23705a719514e37c211f327379688f81b0dChris Lattner BaseSize = std::max(BaseSize, (unsigned)std::strlen(getOption(i))+8); 871331de23705a719514e37c211f327379688f81b0dChris Lattner return BaseSize; 872331de23705a719514e37c211f327379688f81b0dChris Lattner } 873dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 874dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 875f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman// printOptionInfo - Print out information about this option. The 876dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// to-be-maintained width is specified. 877dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 878331de23705a719514e37c211f327379688f81b0dChris Lattnervoid generic_parser_base::printOptionInfo(const Option &O, 879331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned GlobalWidth) const { 880331de23705a719514e37c211f327379688f81b0dChris Lattner if (O.hasArgStr()) { 881331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned L = std::strlen(O.ArgStr); 882e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << " -" << O.ArgStr << std::string(GlobalWidth-L-6, ' ') 883e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << " - " << O.HelpStr << "\n"; 884331de23705a719514e37c211f327379688f81b0dChris Lattner 885331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned i = 0, e = getNumOptions(); i != e; ++i) { 886331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned NumSpaces = GlobalWidth-strlen(getOption(i))-8; 887e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << " =" << getOption(i) << std::string(NumSpaces, ' ') 888e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << " - " << getDescription(i) << "\n"; 889331de23705a719514e37c211f327379688f81b0dChris Lattner } 890331de23705a719514e37c211f327379688f81b0dChris Lattner } else { 891331de23705a719514e37c211f327379688f81b0dChris Lattner if (O.HelpStr[0]) 892e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << " " << O.HelpStr << "\n"; 893331de23705a719514e37c211f327379688f81b0dChris Lattner for (unsigned i = 0, e = getNumOptions(); i != e; ++i) { 894331de23705a719514e37c211f327379688f81b0dChris Lattner unsigned L = std::strlen(getOption(i)); 895e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << " -" << getOption(i) << std::string(GlobalWidth-L-8, ' ') 896e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling << " - " << getDescription(i) << "\n"; 897331de23705a719514e37c211f327379688f81b0dChris Lattner } 898dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 899dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner} 900dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 901dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 902dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner//===----------------------------------------------------------------------===// 903331de23705a719514e37c211f327379688f81b0dChris Lattner// --help and --help-hidden option implementation 904dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner// 905ad0846bd8be0a86e0277e1890fd280c9868f830aReid Spencer 906dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattnernamespace { 907dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 908331de23705a719514e37c211f327379688f81b0dChris Lattnerclass HelpPrinter { 909dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner unsigned MaxArgLen; 910dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner const Option *EmptyArg; 911dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner const bool ShowHidden; 912dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 913331de23705a719514e37c211f327379688f81b0dChris Lattner // isHidden/isReallyHidden - Predicates to be used to filter down arg lists. 914ca6433f233b7ed432916ba07976f9a4e9e0767b0Chris Lattner inline static bool isHidden(std::pair<std::string, Option *> &OptPair) { 915331de23705a719514e37c211f327379688f81b0dChris Lattner return OptPair.second->getOptionHiddenFlag() >= Hidden; 916331de23705a719514e37c211f327379688f81b0dChris Lattner } 917ca6433f233b7ed432916ba07976f9a4e9e0767b0Chris Lattner inline static bool isReallyHidden(std::pair<std::string, Option *> &OptPair) { 918331de23705a719514e37c211f327379688f81b0dChris Lattner return OptPair.second->getOptionHiddenFlag() == ReallyHidden; 919331de23705a719514e37c211f327379688f81b0dChris Lattner } 920331de23705a719514e37c211f327379688f81b0dChris Lattner 921331de23705a719514e37c211f327379688f81b0dChris Lattnerpublic: 922331de23705a719514e37c211f327379688f81b0dChris Lattner HelpPrinter(bool showHidden) : ShowHidden(showHidden) { 923331de23705a719514e37c211f327379688f81b0dChris Lattner EmptyArg = 0; 924331de23705a719514e37c211f327379688f81b0dChris Lattner } 925331de23705a719514e37c211f327379688f81b0dChris Lattner 926331de23705a719514e37c211f327379688f81b0dChris Lattner void operator=(bool Value) { 927331de23705a719514e37c211f327379688f81b0dChris Lattner if (Value == false) return; 928331de23705a719514e37c211f327379688f81b0dChris Lattner 9299878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner // Get all the options. 9309878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::vector<Option*> PositionalOpts; 9319878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner std::map<std::string, Option*> OptMap; 9329878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner GetOptionInfo(PositionalOpts, OptMap); 9339878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 934dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // Copy Options into a vector so we can sort them as we like... 93590aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner std::vector<std::pair<std::string, Option*> > Opts; 9369878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner copy(OptMap.begin(), OptMap.end(), std::back_inserter(Opts)); 937dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 938dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // Eliminate Hidden or ReallyHidden arguments, depending on ShowHidden 93990aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner Opts.erase(std::remove_if(Opts.begin(), Opts.end(), 94090aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner std::ptr_fun(ShowHidden ? isReallyHidden : isHidden)), 94190aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner Opts.end()); 942dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 943dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // Eliminate duplicate entries in table (from enum flags options, f.e.) 944331de23705a719514e37c211f327379688f81b0dChris Lattner { // Give OptionSet a scope 945331de23705a719514e37c211f327379688f81b0dChris Lattner std::set<Option*> OptionSet; 94690aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner for (unsigned i = 0; i != Opts.size(); ++i) 94790aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner if (OptionSet.count(Opts[i].second) == 0) 94890aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner OptionSet.insert(Opts[i].second); // Add new entry to set 949331de23705a719514e37c211f327379688f81b0dChris Lattner else 95090aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner Opts.erase(Opts.begin()+i--); // Erase duplicate 951331de23705a719514e37c211f327379688f81b0dChris Lattner } 952dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 953dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner if (ProgramOverview) 95482a13c9c4811e40d0ff858c508cb54d672ee926eDan Gohman cout << "OVERVIEW: " << ProgramOverview << "\n"; 955dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 956e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << "USAGE: " << ProgramName << " [options]"; 957331de23705a719514e37c211f327379688f81b0dChris Lattner 95890aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner // Print out the positional options. 959331de23705a719514e37c211f327379688f81b0dChris Lattner Option *CAOpt = 0; // The cl::ConsumeAfter option, if it exists... 9609878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (!PositionalOpts.empty() && 9619878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner PositionalOpts[0]->getNumOccurrencesFlag() == ConsumeAfter) 9629878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner CAOpt = PositionalOpts[0]; 9639878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner 9649878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner for (unsigned i = CAOpt != 0, e = PositionalOpts.size(); i != e; ++i) { 9659878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner if (PositionalOpts[i]->ArgStr[0]) 9669878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner cout << " --" << PositionalOpts[i]->ArgStr; 9679878d6ae3a535e421f69e0c08e27b259ad1bdbdcChris Lattner cout << " " << PositionalOpts[i]->HelpStr; 9689cf3d4770230238f2f395514bf04e0e64352d261Chris Lattner } 969331de23705a719514e37c211f327379688f81b0dChris Lattner 970331de23705a719514e37c211f327379688f81b0dChris Lattner // Print the consume after option info if it exists... 971e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling if (CAOpt) cout << " " << CAOpt->HelpStr; 972331de23705a719514e37c211f327379688f81b0dChris Lattner 973e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << "\n\n"; 974dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 975dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner // Compute the maximum argument length... 976dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner MaxArgLen = 0; 97790aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner for (unsigned i = 0, e = Opts.size(); i != e; ++i) 97890aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner MaxArgLen = std::max(MaxArgLen, Opts[i].second->getOptionWidth()); 979dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 980e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << "OPTIONS:\n"; 98190aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner for (unsigned i = 0, e = Opts.size(); i != e; ++i) 98290aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner Opts[i].second->printOptionInfo(MaxArgLen); 983dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 984c540ebbc1b7c2f6a92a968b4d36137a7332cea32Chris Lattner // Print any extra help the user has declared. 98590aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner for (std::vector<const char *>::iterator I = MoreHelp->begin(), 98690aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner E = MoreHelp->end(); I != E; ++I) 987e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << *I; 98890aa839c88776e3dd0b3a798a98ea30d85b6b53cChris Lattner MoreHelp->clear(); 989ad0846bd8be0a86e0277e1890fd280c9868f830aReid Spencer 9909bbba091396922093687d11a181e5886c42c5dfdReid Spencer // Halt the program since help information was printed 991331de23705a719514e37c211f327379688f81b0dChris Lattner exit(1); 992dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner } 993331de23705a719514e37c211f327379688f81b0dChris Lattner}; 994500d8bff2077ac327deec076fc8793e740b358c0Chris Lattner} // End anonymous namespace 995dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 996331de23705a719514e37c211f327379688f81b0dChris Lattner// Define the two HelpPrinter instances that are used to print out help, or 997331de23705a719514e37c211f327379688f81b0dChris Lattner// help-hidden... 998331de23705a719514e37c211f327379688f81b0dChris Lattner// 999500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic HelpPrinter NormalPrinter(false); 1000500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic HelpPrinter HiddenPrinter(true); 1001331de23705a719514e37c211f327379688f81b0dChris Lattner 1002500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic cl::opt<HelpPrinter, true, parser<bool> > 10034bf7afcc271138512c38ab2e4a348e2fe6164140Chris LattnerHOp("help", cl::desc("Display available options (--help-hidden for more)"), 10049b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner cl::location(NormalPrinter), cl::ValueDisallowed); 1005dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1006500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic cl::opt<HelpPrinter, true, parser<bool> > 10074bf7afcc271138512c38ab2e4a348e2fe6164140Chris LattnerHHOp("help-hidden", cl::desc("Display all available options"), 10089b14eb5a781cea80ade37ab9462ba0721cbdbb9cChris Lattner cl::location(HiddenPrinter), cl::Hidden, cl::ValueDisallowed); 1009dbab15a2c9accc0242109881e1632137cb97dbc9Chris Lattner 1010500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic void (*OverrideVersionPrinter)() = 0; 1011515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer 1012500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnernamespace { 1013515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencerclass VersionPrinter { 1014515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencerpublic: 1015aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel void print() { 1016e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << "Low Level Virtual Machine (http://llvm.org/):\n"; 1017e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << " " << PACKAGE_NAME << " version " << PACKAGE_VERSION; 10183fc2f4e83f3317f592c06e2ae7d9f1832210decbChris Lattner#ifdef LLVM_VERSION_INFO 1019e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << LLVM_VERSION_INFO; 10203fc2f4e83f3317f592c06e2ae7d9f1832210decbChris Lattner#endif 1021e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << "\n "; 10223fc2f4e83f3317f592c06e2ae7d9f1832210decbChris Lattner#ifndef __OPTIMIZE__ 1023e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << "DEBUG build"; 1024515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer#else 1025e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << "Optimized build"; 10263fc2f4e83f3317f592c06e2ae7d9f1832210decbChris Lattner#endif 10273fc2f4e83f3317f592c06e2ae7d9f1832210decbChris Lattner#ifndef NDEBUG 1028e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << " with assertions"; 1029515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer#endif 1030e81561909d128c6e2d8033cb5465a49b2596b26aBill Wendling cout << ".\n"; 1031aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel } 1032aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel void operator=(bool OptionWasSpecified) { 1033aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel if (OptionWasSpecified) { 1034aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel if (OverrideVersionPrinter == 0) { 1035aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel print(); 1036515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer exit(1); 1037515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer } else { 1038515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer (*OverrideVersionPrinter)(); 1039515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer exit(1); 1040515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer } 1041515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer } 1042515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer } 1043515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer}; 1044500d8bff2077ac327deec076fc8793e740b358c0Chris Lattner} // End anonymous namespace 1045515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer 1046515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer 104769105f33c190621a6b1ad61f925b1a9e6b0512afReid Spencer// Define the --version option that prints out the LLVM version for the tool 1048500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic VersionPrinter VersionPrinterInstance; 1049500d8bff2077ac327deec076fc8793e740b358c0Chris Lattner 1050500d8bff2077ac327deec076fc8793e740b358c0Chris Lattnerstatic cl::opt<VersionPrinter, true, parser<bool> > 10514bf7afcc271138512c38ab2e4a348e2fe6164140Chris LattnerVersOp("version", cl::desc("Display the version of this program"), 105269105f33c190621a6b1ad61f925b1a9e6b0512afReid Spencer cl::location(VersionPrinterInstance), cl::ValueDisallowed); 105369105f33c190621a6b1ad61f925b1a9e6b0512afReid Spencer 10549bbba091396922093687d11a181e5886c42c5dfdReid Spencer// Utility function for printing the help message. 10559bbba091396922093687d11a181e5886c42c5dfdReid Spencervoid cl::PrintHelpMessage() { 1056f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman // This looks weird, but it actually prints the help message. The 10575cc498f116cd76235c9c0a2ded46bc29f8fb35e0Reid Spencer // NormalPrinter variable is a HelpPrinter and the help gets printed when 10585cc498f116cd76235c9c0a2ded46bc29f8fb35e0Reid Spencer // its operator= is invoked. That's because the "normal" usages of the 1059f976c856fcc5055f3fc7d9f070d72c2d027c1d9dMisha Brukman // help printer is to be assigned true/false depending on whether the 10605cc498f116cd76235c9c0a2ded46bc29f8fb35e0Reid Spencer // --help option was given or not. Since we're circumventing that we have 10615cc498f116cd76235c9c0a2ded46bc29f8fb35e0Reid Spencer // to make it look like --help was given, so we assign true. 10629bbba091396922093687d11a181e5886c42c5dfdReid Spencer NormalPrinter = true; 10639bbba091396922093687d11a181e5886c42c5dfdReid Spencer} 1064515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer 1065aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel/// Utility function for printing version number. 1066aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patelvoid cl::PrintVersionMessage() { 1067aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel VersionPrinterInstance.print(); 1068aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel} 1069aed293dfba04b07a867491c11dfff4bf3eb6bdddDevang Patel 1070515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencervoid cl::SetVersionPrinter(void (*func)()) { 1071515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer OverrideVersionPrinter = func; 1072515b5b379f3508f36f647bfdafce409e28a3d90bReid Spencer} 1073