300 lines
7.3 KiB
C++
300 lines
7.3 KiB
C++
/*=========================================================================
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Program: CMake - Cross-Platform Makefile Generator
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Module: $RCSfile$
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Language: C++
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Date: $Date$
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Version: $Revision$
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Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
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See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notices for more information.
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=========================================================================*/
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#include "cmIfCommand.h"
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bool cmIfFunctionBlocker::
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IsFunctionBlocked(const cmListFileFunction& lff, cmMakefile &mf)
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{
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const char* name = lff.m_Name.c_str();
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const std::vector<cmListFileArgument>& args = lff.m_Arguments;
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// always let if statements through
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if (!strcmp(name,"IF"))
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{
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return false;
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}
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// watch for our ELSE or ENDIF
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if (!strcmp(name,"ELSE") || !strcmp(name,"ENDIF"))
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{
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if (args == m_Args)
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{
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// if it was an else statement then we should change state
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// and block this Else Command
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if (!strcmp(name,"ELSE"))
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{
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m_IsBlocking = !m_IsBlocking;
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return true;
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}
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// otherwise it must be an ENDIF statement, in that case remove the
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// function blocker
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mf.RemoveFunctionBlocker(lff);
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return true;
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}
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else if(args.empty())
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{
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std::string err = "Empty arguments for ";
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err += name;
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err += ". Did you mean ";
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err += name;
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err += "( ";
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for(std::vector<cmListFileArgument>::const_iterator a = m_Args.begin();
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a != m_Args.end();++a)
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{
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err += (a->Quoted?"\"":"");
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err += a->Value;
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err += (a->Quoted?"\"":"");
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err += " ";
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}
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err += ")?";
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cmSystemTools::Error(err.c_str());
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}
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}
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return m_IsBlocking;
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}
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bool cmIfFunctionBlocker::ShouldRemove(const cmListFileFunction& lff,
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cmMakefile&)
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{
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if (lff.m_Name == "ENDIF")
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{
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if (lff.m_Arguments == m_Args)
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{
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return true;
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}
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}
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return false;
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}
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void cmIfFunctionBlocker::
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ScopeEnded(cmMakefile &mf)
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{
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const char* versionValue
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= mf.GetDefinition("CMAKE_MINIMUM_REQUIRED_VERSION");
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if (!versionValue || (atof(versionValue) <= 1.4))
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{
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return;
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}
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std::string errmsg = "The end of a CMakeLists file was reached with an IF statement that was not closed properly.\nWithin the directory: ";
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errmsg += mf.GetCurrentDirectory();
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errmsg += "\nThe arguments are: ";
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for(std::vector<cmListFileArgument>::const_iterator j = m_Args.begin();
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j != m_Args.end(); ++j)
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{
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errmsg += (j->Quoted?"\"":"");
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errmsg += j->Value;
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errmsg += (j->Quoted?"\"":"");
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errmsg += " ";
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}
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cmSystemTools::Error(errmsg.c_str());
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}
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bool cmIfCommand::InvokeInitialPass(const std::vector<cmListFileArgument>& args)
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{
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bool isValid;
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std::vector<std::string> expandedArguments;
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m_Makefile->ExpandArguments(args, expandedArguments);
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bool isTrue = cmIfCommand::IsTrue(expandedArguments,isValid,m_Makefile);
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if (!isValid)
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{
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std::string err = "An IF command had incorrect arguments: ";
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unsigned int i;
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for(i =0; i < args.size(); ++i)
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{
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err += (args[i].Quoted?"\"":"");
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err += args[i].Value;
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err += (args[i].Quoted?"\"":"");
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err += " ";
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}
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this->SetError(err.c_str());
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return false;
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}
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cmIfFunctionBlocker *f = new cmIfFunctionBlocker();
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// if is isn't true block the commands
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f->m_IsBlocking = !isTrue;
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f->m_Args = args;
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m_Makefile->AddFunctionBlocker(f);
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return true;
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}
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bool cmIfCommand::IsTrue(const std::vector<std::string> &args,
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bool &isValid, const cmMakefile *makefile)
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{
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// check for the different signatures
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bool isTrue = true;
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isValid = false;
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const char *def;
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const char *def2;
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if(args.size() < 1 )
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{
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isValid = true;
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return false;
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}
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if (args.size() == 1)
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{
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def = makefile->GetDefinition(args[0].c_str());
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if(cmSystemTools::IsOff(def))
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 2 && (args[0] == "NOT"))
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{
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def = makefile->GetDefinition(args[1].c_str());
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if(!cmSystemTools::IsOff(def))
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 2 && (args[0] == "COMMAND"))
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{
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if(!makefile->CommandExists(args[1].c_str()))
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 2 && (args[0] == "EXISTS"))
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{
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if(!cmSystemTools::FileExists(args[1].c_str()))
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 2 && (args[0] == "MATCHES"))
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{
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if(!cmSystemTools::FileExists(args[1].c_str()))
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 3 && (args[1] == "AND"))
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{
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def = makefile->GetDefinition(args[0].c_str());
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def2 = makefile->GetDefinition(args[2].c_str());
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if(cmSystemTools::IsOff(def) || cmSystemTools::IsOff(def2))
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 3 && (args[1] == "OR"))
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{
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def = makefile->GetDefinition(args[0].c_str());
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def2 = makefile->GetDefinition(args[2].c_str());
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if(cmSystemTools::IsOff(def) && cmSystemTools::IsOff(def2))
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 3 && (args[1] == "MATCHES"))
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{
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def = cmIfCommand::GetVariableOrString(args[0].c_str(), makefile);
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cmRegularExpression regEntry(args[2].c_str());
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// check for black line or comment
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if (!regEntry.find(def))
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 3 && (args[1] == "LESS"))
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{
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def = cmIfCommand::GetVariableOrString(args[0].c_str(), makefile);
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def2 = cmIfCommand::GetVariableOrString(args[2].c_str(), makefile);
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if (!def)
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{
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def = args[0].c_str();
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}
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if (!def2)
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{
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def2 = args[2].c_str();
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}
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if(atof(def) >= atof(def2))
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 3 && (args[1] == "GREATER"))
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{
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def = cmIfCommand::GetVariableOrString(args[0].c_str(), makefile);
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def2 = cmIfCommand::GetVariableOrString(args[2].c_str(), makefile);
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if(atof(def) <= atof(def2))
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 3 && (args[1] == "STRLESS"))
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{
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def = cmIfCommand::GetVariableOrString(args[0].c_str(), makefile);
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def2 = cmIfCommand::GetVariableOrString(args[2].c_str(), makefile);
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if(strcmp(def,def2) >= 0)
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{
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isTrue = false;
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}
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isValid = true;
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}
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if (args.size() == 3 && (args[1] == "STRGREATER"))
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{
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def = cmIfCommand::GetVariableOrString(args[0].c_str(), makefile);
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def2 = cmIfCommand::GetVariableOrString(args[2].c_str(), makefile);
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if(strcmp(def,def2) <= 0)
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{
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isTrue = false;
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}
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isValid = true;
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}
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return isTrue;
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}
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const char* cmIfCommand::GetVariableOrString(const char* str,
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const cmMakefile* mf)
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{
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const char* def = mf->GetDefinition(str);
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if(!def)
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{
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def = str;
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}
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return def;
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}
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