2f23ecdb8a
and which is more useful, because then you can also access the item behind the one you were looking, useful for writing macros with optional keywords with parameters Alex
493 lines
12 KiB
C++
493 lines
12 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 "cmListCommand.h"
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#include <cmsys/RegularExpression.hxx>
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#include <cmsys/SystemTools.hxx>
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#include <stdlib.h> // required for atoi
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#include <ctype.h>
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//----------------------------------------------------------------------------
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bool cmListCommand::InitialPass(std::vector<std::string> const& args)
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{
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if(args.size() < 1)
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{
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this->SetError("must be called with at least one argument.");
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return false;
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}
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const std::string &subCommand = args[0];
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if(subCommand == "LENGTH")
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{
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return this->HandleLengthCommand(args);
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}
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if(subCommand == "GET")
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{
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return this->HandleGetCommand(args);
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}
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if(subCommand == "APPEND")
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{
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return this->HandleAppendCommand(args);
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}
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if(subCommand == "FIND")
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{
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return this->HandleFindCommand(args);
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}
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if(subCommand == "INSERT")
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{
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return this->HandleInsertCommand(args);
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}
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if(subCommand == "REMOVE_AT")
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{
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return this->HandleRemoveAtCommand(args);
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}
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if(subCommand == "REMOVE_ITEM")
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{
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return this->HandleRemoveItemCommand(args);
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}
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if(subCommand == "SORT")
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{
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return this->HandleSortCommand(args);
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}
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if(subCommand == "REVERSE")
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{
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return this->HandleReverseCommand(args);
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}
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std::string e = "does not recognize sub-command "+subCommand;
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this->SetError(e.c_str());
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return false;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand::GetListString(std::string& listString, const char* var)
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{
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if ( !var )
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{
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return false;
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}
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// get the old value
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const char* cacheValue
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= this->Makefile->GetDefinition(var);
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if(!cacheValue)
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{
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return false;
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}
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listString = cacheValue;
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand::GetList(std::vector<std::string>& list, const char* var)
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{
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std::string listString;
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if ( !this->GetListString(listString, var) )
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{
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return false;
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}
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// expand the variable
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cmSystemTools::ExpandListArgument(listString, list);
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand::HandleLengthCommand(std::vector<std::string> const& args)
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{
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if(args.size() != 3)
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{
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this->SetError("sub-command LENGTH requires two arguments.");
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return false;
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}
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const std::string& listName = args[1];
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const std::string& variableName = args[args.size() - 1];
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std::vector<std::string> varArgsExpanded;
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// do not check the return value here
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// if the list var is not found varArgsExpanded will have size 0
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// and we will return 0
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this->GetList(varArgsExpanded, listName.c_str());
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size_t length = varArgsExpanded.size();
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char buffer[1024];
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sprintf(buffer, "%d", static_cast<int>(length));
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this->Makefile->AddDefinition(variableName.c_str(), buffer);
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand::HandleGetCommand(std::vector<std::string> const& args)
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{
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if(args.size() < 4)
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{
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this->SetError("sub-command GET requires at least three arguments.");
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return false;
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}
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const std::string& listName = args[1];
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const std::string& variableName = args[args.size() - 1];
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// expand the variable
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std::vector<std::string> varArgsExpanded;
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if ( !this->GetList(varArgsExpanded, listName.c_str()) )
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{
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this->Makefile->AddDefinition(variableName.c_str(), "NOTFOUND");
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return true;
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}
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std::string value;
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size_t cc;
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for ( cc = 2; cc < args.size()-1; cc ++ )
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{
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int item = atoi(args[cc].c_str());
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if (value.size())
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{
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value += ";";
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}
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size_t nitem = varArgsExpanded.size();
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if ( item < 0 )
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{
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item = (int)nitem + item;
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}
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if ( item < 0 || nitem <= (size_t)item )
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{
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cmOStringStream str;
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str << "index: " << item << " out of range (-"
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<< varArgsExpanded.size() << ", "
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<< varArgsExpanded.size()-1 << ")";
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this->SetError(str.str().c_str());
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return false;
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}
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value += varArgsExpanded[item];
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}
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this->Makefile->AddDefinition(variableName.c_str(), value.c_str());
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand::HandleAppendCommand(std::vector<std::string> const& args)
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{
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if(args.size() < 3)
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{
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this->SetError("sub-command APPEND requires at least two arguments.");
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return false;
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}
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const std::string& listName = args[1];
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// expand the variable
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std::string listString;
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this->GetListString(listString, listName.c_str());
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size_t cc;
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for ( cc = 2; cc < args.size(); ++ cc )
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{
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if ( listString.size() )
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{
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listString += ";";
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}
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listString += args[cc];
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}
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this->Makefile->AddDefinition(listName.c_str(), listString.c_str());
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand::HandleFindCommand(std::vector<std::string> const& args)
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{
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if(args.size() != 4)
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{
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this->SetError("sub-command FIND requires three arguments.");
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return false;
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}
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const std::string& listName = args[1];
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const std::string& variableName = args[args.size() - 1];
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// expand the variable
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std::vector<std::string> varArgsExpanded;
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if ( !this->GetList(varArgsExpanded, listName.c_str()) )
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{
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this->Makefile->AddDefinition(variableName.c_str(), "-1");
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return true;
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}
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std::vector<std::string>::iterator it;
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unsigned int index = 0;
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for ( it = varArgsExpanded.begin(); it != varArgsExpanded.end(); ++ it )
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{
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if ( *it == args[2] )
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{
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char indexString[32];
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sprintf(indexString, "%d", index);
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this->Makefile->AddDefinition(variableName.c_str(), indexString);
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return true;
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}
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index++;
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}
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this->Makefile->AddDefinition(variableName.c_str(), "-1");
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand::HandleInsertCommand(std::vector<std::string> const& args)
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{
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if(args.size() < 4)
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{
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this->SetError("sub-command INSERT requires at least three arguments.");
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return false;
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}
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const std::string& listName = args[1];
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// expand the variable
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int item = atoi(args[2].c_str());
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std::vector<std::string> varArgsExpanded;
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if ( !this->GetList(varArgsExpanded, listName.c_str()) && item != 0)
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{
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cmOStringStream str;
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str << "index: " << item << " out of range (0, 0)";
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this->SetError(str.str().c_str());
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return false;
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}
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if ( varArgsExpanded.size() != 0 )
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{
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size_t nitem = varArgsExpanded.size();
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if ( item < 0 )
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{
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item = (int)nitem + item;
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}
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if ( item < 0 || nitem <= (size_t)item )
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{
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cmOStringStream str;
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str << "index: " << item << " out of range (-"
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<< varArgsExpanded.size() << ", "
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<< (varArgsExpanded.size() == 0?0:(varArgsExpanded.size()-1)) << ")";
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this->SetError(str.str().c_str());
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return false;
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}
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}
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size_t cc;
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size_t cnt = 0;
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for ( cc = 3; cc < args.size(); ++ cc )
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{
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varArgsExpanded.insert(varArgsExpanded.begin()+item+cnt, args[cc]);
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cnt ++;
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}
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std::string value;
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for ( cc = 0; cc < varArgsExpanded.size(); cc ++ )
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{
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if (value.size())
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{
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value += ";";
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}
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value += varArgsExpanded[cc];
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}
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this->Makefile->AddDefinition(listName.c_str(), value.c_str());
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand
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::HandleRemoveItemCommand(std::vector<std::string> const& args)
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{
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if(args.size() < 3)
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{
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this->SetError("sub-command REMOVE_ITEM requires two or more arguments.");
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return false;
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}
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const std::string& listName = args[1];
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// expand the variable
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std::vector<std::string> varArgsExpanded;
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if ( !this->GetList(varArgsExpanded, listName.c_str()) )
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{
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this->SetError("sub-command REMOVE_ITEM requires list to be present.");
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return false;
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}
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size_t cc;
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for ( cc = 2; cc < args.size(); ++ cc )
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{
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size_t kk = 0;
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while ( kk < varArgsExpanded.size() )
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{
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if ( varArgsExpanded[kk] == args[cc] )
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{
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varArgsExpanded.erase(varArgsExpanded.begin()+kk);
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}
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else
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{
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kk ++;
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}
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}
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}
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std::string value;
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for ( cc = 0; cc < varArgsExpanded.size(); cc ++ )
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{
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if (value.size())
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{
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value += ";";
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}
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value += varArgsExpanded[cc];
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}
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this->Makefile->AddDefinition(listName.c_str(), value.c_str());
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand
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::HandleReverseCommand(std::vector<std::string> const& args)
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{
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if(args.size() < 2)
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{
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this->SetError("sub-command REVERSE requires a list as an argument.");
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return false;
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}
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const std::string& listName = args[1];
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// expand the variable
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std::vector<std::string> varArgsExpanded;
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if ( !this->GetList(varArgsExpanded, listName.c_str()) )
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{
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this->SetError("sub-command REVERSE requires list to be present.");
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return false;
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}
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std::string value;
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std::vector<std::string>::reverse_iterator it;
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for ( it = varArgsExpanded.rbegin(); it != varArgsExpanded.rend(); ++ it )
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{
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if (value.size())
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{
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value += ";";
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}
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value += it->c_str();
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}
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this->Makefile->AddDefinition(listName.c_str(), value.c_str());
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand
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::HandleSortCommand(std::vector<std::string> const& args)
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{
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if(args.size() < 2)
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{
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this->SetError("sub-command SORT requires a list as an argument.");
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return false;
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}
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const std::string& listName = args[1];
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// expand the variable
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std::vector<std::string> varArgsExpanded;
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if ( !this->GetList(varArgsExpanded, listName.c_str()) )
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{
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this->SetError("sub-command SORT requires list to be present.");
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return false;
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}
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std::sort(varArgsExpanded.begin(), varArgsExpanded.end());
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std::string value;
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std::vector<std::string>::iterator it;
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for ( it = varArgsExpanded.begin(); it != varArgsExpanded.end(); ++ it )
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{
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if (value.size())
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{
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value += ";";
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}
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value += it->c_str();
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}
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this->Makefile->AddDefinition(listName.c_str(), value.c_str());
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return true;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand::HandleRemoveAtCommand(
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std::vector<std::string> const& args)
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{
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if(args.size() < 3)
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{
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this->SetError("sub-command REMOVE_AT requires at least "
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"two arguments.");
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return false;
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}
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const std::string& listName = args[1];
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// expand the variable
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std::vector<std::string> varArgsExpanded;
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if ( !this->GetList(varArgsExpanded, listName.c_str()) )
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{
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this->SetError("sub-command REMOVE_AT requires list to be present.");
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return false;
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}
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size_t cc;
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std::vector<size_t> removed;
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for ( cc = 2; cc < args.size(); ++ cc )
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{
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int item = atoi(args[cc].c_str());
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size_t nitem = varArgsExpanded.size();
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if ( item < 0 )
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{
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item = (int)nitem + item;
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}
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if ( item < 0 || nitem <= (size_t)item )
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{
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cmOStringStream str;
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str << "index: " << item << " out of range (-"
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<< varArgsExpanded.size() << ", "
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<< varArgsExpanded.size()-1 << ")";
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this->SetError(str.str().c_str());
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return false;
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}
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removed.push_back(static_cast<size_t>(item));
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}
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std::string value;
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for ( cc = 0; cc < varArgsExpanded.size(); ++ cc )
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{
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size_t kk;
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bool found = false;
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for ( kk = 0; kk < removed.size(); ++ kk )
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{
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if ( cc == removed[kk] )
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{
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found = true;
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}
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}
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if ( !found )
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{
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if (value.size())
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{
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value += ";";
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}
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value += varArgsExpanded[cc];
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}
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}
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this->Makefile->AddDefinition(listName.c_str(), value.c_str());
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return true;
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}
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