116459d34f
The entire vector will be destroyed at once at the end of the scope, and the remove algorithms already give us the end of the range of interesting values, so just use those sentinals.
522 lines
15 KiB
C++
522 lines
15 KiB
C++
/*============================================================================
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CMake - Cross Platform Makefile Generator
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License 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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#include <assert.h>
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//----------------------------------------------------------------------------
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bool cmListCommand
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::InitialPass(std::vector<std::string> const& args, cmExecutionStatus &)
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{
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if(args.size() < 2)
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{
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this->SetError("must be called with at least two arguments.");
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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 == "REMOVE_DUPLICATES")
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{
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return this->HandleRemoveDuplicatesCommand(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);
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return false;
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}
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//----------------------------------------------------------------------------
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bool cmListCommand::GetListString(std::string& listString,
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const std::string& var)
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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,
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const std::string& 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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// if the size of the list
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if(listString.empty())
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{
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return true;
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}
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// expand the variable into a list
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cmSystemTools::ExpandListArgument(listString, list, true);
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// if no empty elements then just return
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if (std::find(list.begin(), list.end(), std::string()) == list.end())
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{
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return true;
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}
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// if we have empty elements we need to check policy CMP0007
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switch(this->Makefile->GetPolicyStatus(cmPolicies::CMP0007))
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{
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case cmPolicies::WARN:
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{
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// Default is to warn and use old behavior
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// OLD behavior is to allow compatibility, so recall
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// ExpandListArgument without the true which will remove
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// empty values
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list.clear();
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cmSystemTools::ExpandListArgument(listString, list);
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std::string warn = this->Makefile->GetPolicies()->
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GetPolicyWarning(cmPolicies::CMP0007);
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warn += " List has value = [";
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warn += listString;
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warn += "].";
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this->Makefile->IssueMessage(cmake::AUTHOR_WARNING,
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warn);
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return true;
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}
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case cmPolicies::OLD:
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// OLD behavior is to allow compatibility, so recall
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// ExpandListArgument without the true which will remove
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// empty values
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list.clear();
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cmSystemTools::ExpandListArgument(listString, list);
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return true;
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case cmPolicies::NEW:
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return true;
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case cmPolicies::REQUIRED_IF_USED:
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case cmPolicies::REQUIRED_ALWAYS:
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this->Makefile->IssueMessage(
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cmake::FATAL_ERROR,
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this->Makefile->GetPolicies()
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->GetRequiredPolicyError(cmPolicies::CMP0007)
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);
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return false;
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}
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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);
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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, 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) )
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{
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this->Makefile->AddDefinition(variableName, "NOTFOUND");
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return true;
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}
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// FIXME: Add policy to make non-existing lists an error like empty lists.
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if(varArgsExpanded.empty())
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{
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this->SetError("GET given empty list");
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return false;
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}
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std::string value;
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size_t cc;
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const char* sep = "";
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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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value += sep;
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sep = ";";
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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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std::ostringstream 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());
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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, 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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assert(args.size() >= 2);
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// Skip if nothing to append.
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if(args.size() < 3)
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{
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return true;
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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);
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if(!listString.empty() && !args.empty())
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{
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listString += ";";
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}
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listString += cmJoin(cmRange(args).advance(2), ";");
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this->Makefile->AddDefinition(listName, 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) )
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{
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this->Makefile->AddDefinition(variableName, "-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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std::find(varArgsExpanded.begin(), varArgsExpanded.end(), args[2]);
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if (it != varArgsExpanded.end())
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{
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std::ostringstream indexStream;
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indexStream << std::distance(varArgsExpanded.begin(), it);
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this->Makefile->AddDefinition(variableName, indexStream.str().c_str());
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return true;
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}
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this->Makefile->AddDefinition(variableName, "-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)
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|| varArgsExpanded.empty()) && item != 0)
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{
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std::ostringstream str;
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str << "index: " << item << " out of range (0, 0)";
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this->SetError(str.str());
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return false;
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}
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if (!varArgsExpanded.empty())
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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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std::ostringstream str;
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str << "index: " << item << " out of range (-"
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<< varArgsExpanded.size() << ", "
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<< (varArgsExpanded.empty() ? 0 : (varArgsExpanded.size() - 1)) << ")";
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this->SetError(str.str());
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return false;
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}
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}
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varArgsExpanded.insert(varArgsExpanded.begin()+item,
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args.begin() + 3, args.end());
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std::string value = cmJoin(varArgsExpanded, ";");
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this->Makefile->AddDefinition(listName, 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) )
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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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std::vector<std::string> remove(args.begin() + 2, args.end());
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std::sort(remove.begin(), remove.end());
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std::vector<std::string>::const_iterator remEnd =
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std::unique(remove.begin(), remove.end());
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std::vector<std::string>::const_iterator remBegin = remove.begin();
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std::vector<std::string>::const_iterator argsEnd =
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cmRemoveMatching(varArgsExpanded, cmRange(remBegin, remEnd));
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std::vector<std::string>::const_iterator argsBegin = varArgsExpanded.begin();
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std::string value = cmJoin(cmRange(argsBegin, argsEnd), ";");
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this->Makefile->AddDefinition(listName, 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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assert(args.size() >= 2);
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if(args.size() > 2)
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{
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this->SetError(
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"sub-command REVERSE only takes one 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) )
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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::reverse(varArgsExpanded.begin(), varArgsExpanded.end());
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std::string value = cmJoin(varArgsExpanded, ";");
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this->Makefile->AddDefinition(listName, 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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::HandleRemoveDuplicatesCommand(std::vector<std::string> const& args)
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{
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assert(args.size() >= 2);
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if(args.size() > 2)
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{
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this->SetError(
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"sub-command REMOVE_DUPLICATES only takes one 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) )
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{
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this->SetError(
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"sub-command REMOVE_DUPLICATES requires list to be present.");
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return false;
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}
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std::vector<std::string>::const_iterator argsEnd =
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cmRemoveDuplicates(varArgsExpanded);
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std::vector<std::string>::const_iterator argsBegin =
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varArgsExpanded.begin();
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std::string value = cmJoin(cmRange(argsBegin, argsEnd), ";");
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this->Makefile->AddDefinition(listName, 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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assert(args.size() >= 2);
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if(args.size() > 2)
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{
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this->SetError(
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"sub-command SORT only takes one 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) )
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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 = cmJoin(varArgsExpanded, ";");
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this->Makefile->AddDefinition(listName, 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) )
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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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// FIXME: Add policy to make non-existing lists an error like empty lists.
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if(varArgsExpanded.empty())
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{
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this->SetError("REMOVE_AT given empty list");
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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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std::ostringstream 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());
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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::sort(removed.begin(), removed.end());
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std::vector<size_t>::const_iterator remEnd =
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std::unique(removed.begin(), removed.end());
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std::vector<size_t>::const_iterator remBegin = removed.begin();
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std::vector<std::string>::const_iterator argsEnd =
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cmRemoveIndices(varArgsExpanded, cmRange(remBegin, remEnd));
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std::vector<std::string>::const_iterator argsBegin = varArgsExpanded.begin();
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std::string value = cmJoin(cmRange(argsBegin, argsEnd), ";");
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this->Makefile->AddDefinition(listName, value.c_str());
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return true;
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}
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