CMake/Source/cmListCommand.cxx

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/*=========================================================================
Program: CMake - Cross-Platform Makefile Generator
Module: $RCSfile$
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) 2002 Kitware, Inc., Insight Consortium. All rights reserved.
See Copyright.txt or http://www.cmake.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "cmListCommand.h"
#include <cmsys/RegularExpression.hxx>
#include <cmsys/SystemTools.hxx>
#include <stdlib.h> // required for atoi
#include <ctype.h>
//----------------------------------------------------------------------------
bool cmListCommand::InitialPass(std::vector<std::string> const& args)
{
if(args.size() < 1)
{
this->SetError("must be called with at least one argument.");
return false;
}
const std::string &subCommand = args[0];
if(subCommand == "LENGTH")
{
return this->HandleLengthCommand(args);
}
if(subCommand == "GET")
{
return this->HandleGetCommand(args);
}
if(subCommand == "SET")
{
return this->HandleSetCommand(args);
}
if(subCommand == "INSERT")
{
return this->HandleInsertCommand(args);
}
if(subCommand == "REMOVE")
{
return this->HandleRemoveCommand(args);
}
if(subCommand == "REMOVE_ITEM")
{
return this->HandleRemoveItemCommand(args);
}
std::string e = "does not recognize sub-command "+subCommand;
this->SetError(e.c_str());
return false;
}
//----------------------------------------------------------------------------
bool cmListCommand::GetListString(std::string& listString, const char* var)
{
if ( !var )
{
return false;
}
// get the old value
const char* cacheValue
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= this->Makefile->GetDefinition(var);
if(!cacheValue)
{
cmOStringStream str;
str << "cannot find variable: " << var;
this->SetError(str.str().c_str());
return false;
}
listString = cacheValue;
return true;
}
//----------------------------------------------------------------------------
bool cmListCommand::GetList(std::vector<std::string>& list, const char* var)
{
std::string listString;
if ( !this->GetListString(listString, var) )
{
return false;
}
// expand the variable
cmSystemTools::ExpandListArgument(listString, list);
return true;
}
//----------------------------------------------------------------------------
bool cmListCommand::HandleLengthCommand(std::vector<std::string> const& args)
{
if(args.size() != 3)
{
this->SetError("sub-command LENGTH requires two arguments.");
return false;
}
const std::string& listName = args[1];
const std::string& variableName = args[args.size() - 1];
std::vector<std::string> varArgsExpanded;
// do not check the return value here
// if the list var is not found varArgsExpanded will have size 0
// and we will return 0
this->GetList(varArgsExpanded, listName.c_str());
size_t length = varArgsExpanded.size();
char buffer[1024];
sprintf(buffer, "%d", static_cast<int>(length));
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this->Makefile->AddDefinition(variableName.c_str(), buffer);
return true;
}
//----------------------------------------------------------------------------
bool cmListCommand::HandleGetCommand(std::vector<std::string> const& args)
{
if(args.size() < 4)
{
this->SetError("sub-command GET requires at least three arguments.");
return false;
}
const std::string& listName = args[1];
const std::string& variableName = args[args.size() - 1];
// expand the variable
std::vector<std::string> varArgsExpanded;
if ( !this->GetList(varArgsExpanded, listName.c_str()) )
{
return false;
}
std::string value;
size_t cc;
for ( cc = 2; cc < args.size()-1; cc ++ )
{
int item = atoi(args[cc].c_str());
if (value.size())
{
value += ";";
}
size_t nitem = varArgsExpanded.size();
if ( item < 0 )
{
item = (int)nitem + item;
}
if ( item < 0 || nitem <= (size_t)item )
{
cmOStringStream str;
str << "index: " << item << " out of range (-" << varArgsExpanded.size() << ", " << varArgsExpanded.size()-1 << ")";
this->SetError(str.str().c_str());
return false;
}
value += varArgsExpanded[item];
}
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this->Makefile->AddDefinition(variableName.c_str(), value.c_str());
return true;
}
//----------------------------------------------------------------------------
bool cmListCommand::HandleSetCommand(std::vector<std::string> const& args)
{
if(args.size() < 3)
{
this->SetError("sub-command SET requires at least two arguments.");
return false;
}
const std::string& listName = args[1];
// expand the variable
std::string listString;
if ( !this->GetListString(listString, listName.c_str()) )
{
return false;
}
size_t cc;
for ( cc = 2; cc < args.size(); ++ cc )
{
if ( listString.size() )
{
listString += ";";
}
listString += args[cc];
}
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this->Makefile->AddDefinition(listName.c_str(), listString.c_str());
return true;
}
//----------------------------------------------------------------------------
bool cmListCommand::HandleInsertCommand(std::vector<std::string> const& args)
{
if(args.size() < 4)
{
this->SetError("sub-command INSERT requires at least three arguments.");
return false;
}
const std::string& listName = args[1];
// expand the variable
std::vector<std::string> varArgsExpanded;
if ( !this->GetList(varArgsExpanded, listName.c_str()) )
{
return false;
}
int item = atoi(args[2].c_str());
size_t nitem = varArgsExpanded.size();
if ( item < 0 )
{
item = (int)nitem + item;
}
if ( item < 0 || nitem <= (size_t)item )
{
cmOStringStream str;
str << "index: " << item << " out of range (-" << varArgsExpanded.size() << ", " << varArgsExpanded.size()-1 << ")";
this->SetError(str.str().c_str());
return false;
}
size_t cc;
size_t cnt = 0;
for ( cc = 3; cc < args.size(); ++ cc )
{
varArgsExpanded.insert(varArgsExpanded.begin()+item+cnt, args[cc]);
cnt ++;
}
std::string value;
for ( cc = 0; cc < varArgsExpanded.size(); cc ++ )
{
if (value.size())
{
value += ";";
}
value += varArgsExpanded[cc];
}
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this->Makefile->AddDefinition(listName.c_str(), value.c_str());
return true;
}
//----------------------------------------------------------------------------
bool cmListCommand::HandleRemoveCommand(std::vector<std::string> const& args)
{
if(args.size() < 3)
{
this->SetError("sub-command REMOVE requires at least two arguments.");
return false;
}
const std::string& listName = args[1];
// expand the variable
std::vector<std::string> varArgsExpanded;
if ( !this->GetList(varArgsExpanded, listName.c_str()) )
{
return false;
}
size_t cc;
for ( cc = 2; cc < args.size(); ++ cc )
{
size_t kk = 0;
while ( kk < varArgsExpanded.size() )
{
if ( varArgsExpanded[kk] == args[cc] )
{
varArgsExpanded.erase(varArgsExpanded.begin()+kk);
}
kk ++;
}
}
std::string value;
for ( cc = 0; cc < varArgsExpanded.size(); cc ++ )
{
if (value.size())
{
value += ";";
}
value += varArgsExpanded[cc];
}
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this->Makefile->AddDefinition(listName.c_str(), value.c_str());
return true;
}
//----------------------------------------------------------------------------
bool cmListCommand::HandleRemoveItemCommand(std::vector<std::string> const& args)
{
if(args.size() < 3)
{
this->SetError("sub-command REMOVE_ITEM requires at least two arguments.");
return false;
}
const std::string& listName = args[1];
// expand the variable
std::vector<std::string> varArgsExpanded;
if ( !this->GetList(varArgsExpanded, listName.c_str()) )
{
return false;
}
size_t cc;
std::vector<size_t> removed;
for ( cc = 2; cc < args.size(); ++ cc )
{
int item = atoi(args[cc].c_str());
size_t nitem = varArgsExpanded.size();
if ( item < 0 )
{
item = (int)nitem + item;
}
if ( item < 0 || nitem <= (size_t)item )
{
cmOStringStream str;
str << "index: " << item << " out of range (-" << varArgsExpanded.size() << ", " << varArgsExpanded.size()-1 << ")";
this->SetError(str.str().c_str());
return false;
}
removed.push_back(static_cast<size_t>(item));
}
std::string value;
for ( cc = 0; cc < varArgsExpanded.size(); ++ cc )
{
size_t kk;
bool found = false;
for ( kk = 0; kk < removed.size(); ++ kk )
{
if ( cc == removed[kk] )
{
found = true;
}
}
if ( !found )
{
if (value.size())
{
value += ";";
}
value += varArgsExpanded[cc];
}
}
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this->Makefile->AddDefinition(listName.c_str(), value.c_str());
return true;
}