cmIDEOption: Store mapped flag values as a vector<string>

Some FlagMap entries are ;-lists.  Store values as vector<string> so
that individual values may contain ';' characters.  Delay the
construction of the final ;-list until writing to the VS project file.
With this approach the generated file may contain ;-separated values
that contain encoded ';' characters.

Source/cmIDEOptions.cxx

@@ -152,18 +152,7 @@ void cmIDEOptions::FlagMapUpdate(cmIDEFlagTable const* entry,
     }
   else if(entry->special & cmIDEFlagTable::SemicolonAppendable)
     {
-    std::map<std::string,std::string>::iterator itr;
-    itr = this->FlagMap.find(entry->IDEName);
-    if(itr != this->FlagMap.end())
-      {
-      // Append to old value (if present) with semicolons;
-      itr->second += ";";
-      itr->second += new_value;
-      }
-    else
-      {
-      this->FlagMap[entry->IDEName] = new_value;
-      }
+    this->FlagMap[entry->IDEName].push_back(new_value);
     }
   else
     {
@@ -199,6 +188,13 @@ void cmIDEOptions::AddFlag(const char* flag, const char* value)
   this->FlagMap[flag] = value;
 }
 
+//----------------------------------------------------------------------------
+void cmIDEOptions::AddFlag(const char* flag,
+                           std::vector<std::string> const& value)
+{
+  this->FlagMap[flag] = value;
+}
+
 //----------------------------------------------------------------------------
 void cmIDEOptions::RemoveFlag(const char* flag)
 {
@@ -208,10 +204,11 @@ void cmIDEOptions::RemoveFlag(const char* flag)
 //----------------------------------------------------------------------------
 const char* cmIDEOptions::GetFlag(const char* flag)
 {
-  std::map<std::string, std::string>::iterator i = this->FlagMap.find(flag);
-  if(i != this->FlagMap.end())
+  // This method works only for single-valued flags!
+  std::map<std::string, FlagValue>::iterator i = this->FlagMap.find(flag);
+  if(i != this->FlagMap.end() && i->second.size() == 1)
     {
-    return i->second.c_str();
+    return i->second[0].c_str();
     }
   return 0;
 }

Source/cmIDEOptions.h

@@ -29,6 +29,7 @@ public:
   void AddDefines(const char* defines);
   void AddDefines(const std::vector<std::string> &defines);
   void AddFlag(const char* flag, const char* value);
+  void AddFlag(const char* flag, std::vector<std::string> const& value);
   void RemoveFlag(const char* flag);
   const char* GetFlag(const char* flag);
 
@@ -40,7 +41,23 @@ protected:
   // Then parse the command line flags specified in CMAKE_CXX_FLAGS
   // and CMAKE_C_FLAGS
   // and overwrite or add new values to this map
-  std::map<std::string, std::string> FlagMap;
+  class FlagValue: public std::vector<std::string>
+  {
+    typedef std::vector<std::string> derived;
+  public:
+    FlagValue& operator=(std::string const& r)
+      {
+      this->resize(1);
+      this->operator[](0) = r;
+      return *this;
+      }
+    FlagValue& operator=(std::vector<std::string> const& r)
+      {
+      this->derived::operator=(r);
+      return *this;
+      }
+  };
+  std::map<std::string, FlagValue > FlagMap;
 
   // Preprocessor definitions.
   std::vector<std::string> Defines;

Source/cmVisualStudio10TargetGenerator.cxx

@@ -1735,6 +1735,9 @@ cmVisualStudio10TargetGenerator::ComputeLinkOptions(std::string const& config)
     }
   // Replace spaces in libs with ;
   cmSystemTools::ReplaceString(libs, " ", ";");
+  std::vector<std::string> libVec;
+  cmSystemTools::ExpandListArgument(libs, libVec);
+
   cmComputeLinkInformation* pcli =
     this->Target->GetLinkInformation(config.c_str());
   if(!pcli)
@@ -1746,27 +1749,21 @@ cmVisualStudio10TargetGenerator::ComputeLinkOptions(std::string const& config)
     }
   // add the libraries for the target to libs string
   cmComputeLinkInformation& cli = *pcli;
-  this->AddLibraries(cli, libs);
-  linkOptions.AddFlag("AdditionalDependencies", libs.c_str());
+  this->AddLibraries(cli, libVec);
+  linkOptions.AddFlag("AdditionalDependencies", libVec);
 
   std::vector<std::string> const& ldirs = cli.GetDirectories();
-  const char* sep = "";
-  std::string linkDirs;
+  std::vector<std::string> linkDirs;
   for(std::vector<std::string>::const_iterator d = ldirs.begin();
       d != ldirs.end(); ++d)
     {
     // first just full path
-    linkDirs += sep;
-    linkDirs += *d;
-    sep = ";";
-    linkDirs += sep;
+    linkDirs.push_back(*d);
     // next path with configuration type Debug, Release, etc
-    linkDirs += *d;
-    linkDirs += "/$(Configuration)";
-    linkDirs += sep;
+    linkDirs.push_back(*d + "/$(Configuration)");
     }
-  linkDirs += "%(AdditionalLibraryDirectories)";
-  linkOptions.AddFlag("AdditionalLibraryDirectories", linkDirs.c_str());
+  linkDirs.push_back("%(AdditionalLibraryDirectories)");
+  linkOptions.AddFlag("AdditionalLibraryDirectories", linkDirs);
 
   std::string targetName;
   std::string targetNameSO;
@@ -1866,11 +1863,10 @@ cmVisualStudio10TargetGenerator::WriteLinkOptions(std::string const& config)
 
 void cmVisualStudio10TargetGenerator::AddLibraries(
   cmComputeLinkInformation& cli,
-  std::string& libstring)
+  std::vector<std::string>& libVec)
 {
   typedef cmComputeLinkInformation::ItemVector ItemVector;
   ItemVector libs = cli.GetItems();
-  const char* sep = ";";
   for(ItemVector::const_iterator l = libs.begin(); l != libs.end(); ++l)
     {
     if(l->IsPath)
@@ -1880,14 +1876,12 @@ void cmVisualStudio10TargetGenerator::AddLibraries(
                 cmLocalGenerator::START_OUTPUT,
                 cmLocalGenerator::UNCHANGED);
       this->ConvertToWindowsSlash(path);
-      libstring += sep;
-      libstring += path;
+      libVec.push_back(path);
       }
     else if (!l->Target
         || l->Target->GetType() != cmTarget::INTERFACE_LIBRARY)
       {
-      libstring += sep;
-      libstring += l->Value;
+      libVec.push_back(l->Value);
       }
     }
 }

Source/cmVisualStudio10TargetGenerator.h

@@ -90,7 +90,8 @@ private:
   void WriteGroups();
   void WriteProjectReferences();
   bool OutputSourceSpecificFlags(cmSourceFile const* source);
-  void AddLibraries(cmComputeLinkInformation& cli, std::string& libstring);
+  void AddLibraries(cmComputeLinkInformation& cli,
+                    std::vector<std::string>& libVec);
   void WriteLibOptions(std::string const& config);
   void WriteEvents(std::string const& configName);
   void WriteEvent(const char* name,

Source/cmVisualStudioGeneratorOptions.cxx

@@ -301,7 +301,7 @@ cmVisualStudioGeneratorOptions
 {
   if(this->Version >= cmLocalVisualStudioGenerator::VS10)
     {
-    for(std::map<std::string, std::string>::iterator m = this->FlagMap.begin();
+    for(std::map<std::string, FlagValue>::iterator m = this->FlagMap.begin();
         m != this->FlagMap.end(); ++m)
       {
       fout << indent;
@@ -317,20 +317,34 @@ cmVisualStudioGeneratorOptions
         {
         fout << "<" << m->first << ">";
         }
-      fout  << m->second;
+      const char* sep = "";
+      for(std::vector<std::string>::iterator i = m->second.begin();
+            i != m->second.end(); ++i)
+        {
+        fout << sep << *i;
+        sep = ";";
+        }
       if (m->first == "AdditionalIncludeDirectories")
         {
-        fout  << ";%(AdditionalIncludeDirectories)";
+        fout << sep << "%(AdditionalIncludeDirectories)";
         }
       fout  << "</" << m->first << ">\n";
       }
     }
   else
     {
-    for(std::map<std::string, std::string>::iterator m = this->FlagMap.begin();
+    for(std::map<std::string, FlagValue>::iterator m = this->FlagMap.begin();
         m != this->FlagMap.end(); ++m)
       {
-      fout << indent << m->first << "=\"" << m->second << "\"\n";
+      fout << indent << m->first << "=\"";
+      const char* sep = "";
+      for(std::vector<std::string>::iterator i = m->second.begin();
+            i != m->second.end(); ++i)
+        {
+        fout << sep << *i;
+        sep = ";";
+        }
+      fout << "\"\n";
       }
     }
 }