Use std::replace for replacing chars in strings.

Find uses of `cmSystemTools::ReplaceString` where both `replace` and
`with` are string literals with a size of one.

Automate with:

git grep -l ReplaceString | xargs sed -i "s|cmSystemTools::ReplaceString(\([^,]*\), \"\(.\)\", \"\(.\)\");|std::replace(\1.begin(), \1.end(), '\2', '\3');|g"
git grep -l ReplaceString | xargs sed -i "s|cmSystemTools::ReplaceString(\([^,]*\), \"\(.\)\", \"\\\\\\\\\");|std::replace(\1.begin(), \1.end(), '\2', '\\\\\\\\');|g"
git grep -l ReplaceString | xargs sed -i "s|cmSystemTools::ReplaceString(\([^,]*\), \"\\\\\\\\\", \"\(.\)\");|std::replace(\1.begin(), \1.end(), '\\\\\\\\', '\2');|g"

Source/CPack/cmCPackNSISGenerator.cxx

@@ -74,7 +74,7 @@ int cmCPackNSISGenerator::PackageFiles()
       // Strip off the component part of the path.
       fileN = fileN.substr(fileN.find('/') + 1, std::string::npos);
     }
-    cmSystemTools::ReplaceString(fileN, "/", "\\");
+    std::replace(fileN.begin(), fileN.end(), '/', '\\');
     str << "  Delete \"$INSTDIR\\" << fileN << "\"" << std::endl;
   }
   cmCPackLogger(cmCPackLog::LOG_DEBUG, "Uninstall Files: " << str.str()
@@ -104,7 +104,7 @@ int cmCPackNSISGenerator::PackageFiles()
         fileN = fileN.substr(slash + 1, std::string::npos);
       }
     }
-    cmSystemTools::ReplaceString(fileN, "/", "\\");
+    std::replace(fileN.begin(), fileN.end(), '/', '\\');
     dstr << "  RMDir \"$INSTDIR\\" << fileN << "\"" << std::endl;
     if (!componentName.empty()) {
       this->Components[componentName].Directories.push_back(fileN);
@@ -548,7 +548,7 @@ void cmCPackNSISGenerator::CreateMenuLinks(std::ostringstream& str,
     // Convert / to \ in filenames, but not in urls:
     //
     if (!url) {
-      cmSystemTools::ReplaceString(sourceName, "/", "\\");
+      std::replace(sourceName.begin(), sourceName.end(), '/', '\\');
     }
 
     ++it;
@@ -790,13 +790,13 @@ std::string cmCPackNSISGenerator::CreateComponentDescription(
   for (pathIt = component->Files.begin(); pathIt != component->Files.end();
        ++pathIt) {
     path = *pathIt;
-    cmSystemTools::ReplaceString(path, "/", "\\");
+    std::replace(path.begin(), path.end(), '/', '\\');
     macrosOut << "  Delete \"$INSTDIR\\" << path << "\"\n";
   }
   for (pathIt = component->Directories.begin();
        pathIt != component->Directories.end(); ++pathIt) {
     path = *pathIt;
-    cmSystemTools::ReplaceString(path, "/", "\\");
+    std::replace(path.begin(), path.end(), '/', '\\');
     macrosOut << "  RMDir \"$INSTDIR\\" << path << "\"\n";
   }
   macrosOut << "  noremove_" << component->Name << ":\n";

Source/CPack/cmCPackRPMGenerator.cxx

@@ -34,13 +34,13 @@ int cmCPackRPMGenerator::InitializeInternal()
    */
   if (this->GetOption("CPACK_PACKAGE_NAME")) {
     std::string packageName = this->GetOption("CPACK_PACKAGE_NAME");
-    cmSystemTools::ReplaceString(packageName, " ", "-");
+    std::replace(packageName.begin(), packageName.end(), ' ', '-');
     this->SetOption("CPACK_PACKAGE_NAME", packageName.c_str());
   }
   /* same for CPACK_PACKAGE_FILE_NAME */
   if (this->GetOption("CPACK_PACKAGE_FILE_NAME")) {
     std::string packageName = this->GetOption("CPACK_PACKAGE_FILE_NAME");
-    cmSystemTools::ReplaceString(packageName, " ", "-");
+    std::replace(packageName.begin(), packageName.end(), ' ', '-');
     this->SetOption("CPACK_PACKAGE_FILE_NAME", packageName.c_str());
   }
   return this->Superclass::InitializeInternal();

Source/cmBuildNameCommand.cxx

@@ -32,9 +32,9 @@ bool cmBuildNameCommand::InitialPass(std::vector<std::string> const& args,
     cmsys::RegularExpression reg("[()/]");
     if (reg.find(cacheValue)) {
       std::string cv = cacheValue;
-      cmSystemTools::ReplaceString(cv, "/", "_");
+      std::replace(cv.begin(), cv.end(), '/', '_');
-      cmSystemTools::ReplaceString(cv, "(", "_");
+      std::replace(cv.begin(), cv.end(), '(', '_');
-      cmSystemTools::ReplaceString(cv, ")", "_");
+      std::replace(cv.begin(), cv.end(), ')', '_');
       this->Makefile->AddCacheDefinition(args[0], cv.c_str(), "Name of build.",
                                          cmState::STRING);
     }
@@ -57,9 +57,9 @@ bool cmBuildNameCommand::InitialPass(std::vector<std::string> const& args,
   this->Makefile->ExpandVariablesInString(compiler);
   buildname += "-";
   buildname += cmSystemTools::GetFilenameName(compiler);
-  cmSystemTools::ReplaceString(buildname, "/", "_");
+  std::replace(buildname.begin(), buildname.end(), '/', '_');
-  cmSystemTools::ReplaceString(buildname, "(", "_");
+  std::replace(buildname.begin(), buildname.end(), '(', '_');
-  cmSystemTools::ReplaceString(buildname, ")", "_");
+  std::replace(buildname.begin(), buildname.end(), ')', '_');
 
   this->Makefile->AddCacheDefinition(args[0], buildname.c_str(),
                                      "Name of build.", cmState::STRING);

Source/cmCreateTestSourceList.cxx

@@ -95,9 +95,9 @@ bool cmCreateTestSourceList::InitialPass(std::vector<std::string> const& args,
       func_name = cmSystemTools::GetFilenameWithoutLastExtension(*i);
     }
     cmSystemTools::ConvertToUnixSlashes(func_name);
-    cmSystemTools::ReplaceString(func_name, " ", "_");
+    std::replace(func_name.begin(), func_name.end(), ' ', '_');
-    cmSystemTools::ReplaceString(func_name, "/", "_");
+    std::replace(func_name.begin(), func_name.end(), '/', '_');
-    cmSystemTools::ReplaceString(func_name, ":", "_");
+    std::replace(func_name.begin(), func_name.end(), ':', '_');
     tests_func_name.push_back(func_name);
     forwardDeclareCode += "int ";
     forwardDeclareCode += func_name;

Source/cmGlobalGhsMultiGenerator.cxx

@@ -214,7 +214,7 @@ void cmGlobalGhsMultiGenerator::OpenBuildFileStream()
     this->GetCMakeInstance()->MarkCliAsUsed("GHS_OS_DIR");
   }
   std::string fOSDir(this->trimQuotes(osDir));
-  cmSystemTools::ReplaceString(fOSDir, "\\", "/");
+  std::replace(fOSDir.begin(), fOSDir.end(), '\\', '/');
   if (!fOSDir.empty() && ('c' == fOSDir[0] || 'C' == fOSDir[0])) {
     this->OSDirRelative = false;
   } else {
@@ -230,7 +230,7 @@ void cmGlobalGhsMultiGenerator::OpenBuildFileStream()
     this->GetCMakeInstance()->MarkCliAsUsed("GHS_BSP_NAME");
   }
   std::string fBspName(this->trimQuotes(bspName));
-  cmSystemTools::ReplaceString(fBspName, "\\", "/");
+  std::replace(fBspName.begin(), fBspName.end(), '\\', '/');
   this->WriteMacros();
   this->WriteHighLevelDirectives();
 

Source/cmGlobalNinjaGenerator.cxx

@@ -113,9 +113,9 @@ std::string cmGlobalNinjaGenerator::EncodePath(const std::string& path)
   std::string result = path;
 #ifdef _WIN32
   if (this->IsGCCOnWindows())
-    cmSystemTools::ReplaceString(result, "\\", "/");
+    std::replace(result.begin(), result.end(), '\\', '/');
   else
-    cmSystemTools::ReplaceString(result, "/", "\\");
+    std::replace(result.begin(), result.end(), '/', '\\');
 #endif
   return EncodeLiteral(result);
 }
@@ -742,7 +742,7 @@ std::string cmGlobalNinjaGenerator::ConvertToNinjaPath(const std::string& path)
   std::string convPath = ng->Convert(path, cmOutputConverter::HOME_OUTPUT);
   convPath = this->NinjaOutputPath(convPath);
 #ifdef _WIN32
-  cmSystemTools::ReplaceString(convPath, "/", "\\");
+  std::replace(convPath.begin(), convPath.end(), '/', '\\');
 #endif
   return convPath;
 }
@@ -755,7 +755,7 @@ std::string cmGlobalNinjaGenerator::ConvertToNinjaFolderRule(
   std::string convPath = ng->Convert(path + "/all", cmOutputConverter::HOME);
   convPath = this->NinjaOutputPath(convPath);
 #ifdef _WIN32
-  cmSystemTools::ReplaceString(convPath, "/", "\\");
+  std::replace(convPath.begin(), convPath.end(), '/', '\\');
 #endif
   return convPath;
 }

Source/cmGlobalVisualStudio7Generator.cxx

@@ -457,7 +457,7 @@ void cmGlobalVisualStudio7Generator::WriteFolders(std::ostream& fout)
     std::string fullName = iter->first;
     std::string guid = this->GetGUID(fullName.c_str());
 
-    cmSystemTools::ReplaceString(fullName, "/", "\\");
+    std::replace(fullName.begin(), fullName.end(), '/', '\\');
     if (cmSystemTools::StringStartsWith(fullName.c_str(), prefix)) {
       fullName = fullName.substr(skip_prefix);
     }

Source/cmGlobalVisualStudioGenerator.cxx

@@ -622,7 +622,7 @@ void WriteVSMacrosFileRegistryEntry(const std::string& nextAvailableSubKeyName,
       DWORD dw = 0;
 
       std::string s(macrosFile);
-      cmSystemTools::ReplaceString(s, "/", "\\");
+      std::replace(s.begin(), s.end(), '/', '\\');
       std::wstring ws = cmsys::Encoding::ToWide(s);
 
       result =

Source/cmGlobalXCodeGenerator.cxx

@@ -367,7 +367,7 @@ std::string cmGlobalXCodeGenerator::PostBuildMakeTarget(
   std::string const& tName, std::string const& configName)
 {
   std::string target = tName;
-  cmSystemTools::ReplaceString(target, " ", "_");
+  std::replace(target.begin(), target.end(), ' ', '_');
   std::string out = "PostBuild." + target;
   if (this->XcodeVersion > 20) {
     out += "." + configName;

Source/cmInstallExportGenerator.cxx

@@ -93,11 +93,11 @@ void cmInstallExportGenerator::ComputeTempDir()
       dest[0] = '_';
     }
     // Avoid windows full paths by removing colons.
-    cmSystemTools::ReplaceString(dest, ":", "_");
+    std::replace(dest.begin(), dest.end(), ':', '_');
     // Avoid relative paths that go up the tree.
     cmSystemTools::ReplaceString(dest, "../", "__/");
     // Avoid spaces.
-    cmSystemTools::ReplaceString(dest, " ", "_");
+    std::replace(dest.begin(), dest.end(), ' ', '_');
     this->TempDir += dest;
   }
 }

Source/cmLocalGenerator.cxx

@@ -2309,13 +2309,13 @@ std::string& cmLocalGenerator::CreateSafeUniqueObjectFileName(
     ssin.erase(0, ssin.find_first_not_of("/"));
 
     // Avoid full paths by removing colons.
-    cmSystemTools::ReplaceString(ssin, ":", "_");
+    std::replace(ssin.begin(), ssin.end(), ':', '_');
 
     // Avoid relative paths that go up the tree.
     cmSystemTools::ReplaceString(ssin, "../", "__/");
 
     // Avoid spaces.
-    cmSystemTools::ReplaceString(ssin, " ", "_");
+    std::replace(ssin.begin(), ssin.end(), ' ', '_');
 
     // Mangle the name if necessary.
     if (this->Makefile->IsOn("CMAKE_MANGLE_OBJECT_FILE_NAMES")) {

Source/cmLocalUnixMakefileGenerator3.cxx

@@ -1190,7 +1190,7 @@ std::string cmLocalUnixMakefileGenerator3::CreateMakeVariable(
   // if this there is no value for this->MakefileVariableSize then
   // the string must have bad characters in it
   if (!this->MakefileVariableSize) {
-    cmSystemTools::ReplaceString(ret, ".", "_");
+    std::replace(ret.begin(), ret.end(), '.', '_');
     cmSystemTools::ReplaceString(ret, "-", "__");
     cmSystemTools::ReplaceString(ret, "+", "___");
     int ni = 0;

Source/cmNinjaTargetGenerator.cxx

@@ -134,7 +134,7 @@ void cmNinjaTargetGenerator::AddIncludeFlags(std::string& languageFlags,
     // needed by cmcldeps
     false, this->GetConfigName());
   if (this->GetGlobalGenerator()->IsGCCOnWindows())
-    cmSystemTools::ReplaceString(includeFlags, "\\", "/");
+    std::replace(includeFlags.begin(), includeFlags.end(), '\\', '/');
 
   this->LocalGenerator->AppendFlags(languageFlags, includeFlags);
 }

Source/cmQtAutoGenerators.cxx

@@ -1303,7 +1303,7 @@ bool cmQtAutoGenerators::GenerateQrc(const std::string& qrcInputFile,
                                      const std::string& qrcOutputFile)
 {
   std::string relName = this->SourceRelativePath(qrcInputFile);
-  cmSystemTools::ReplaceString(relName, "/", "_");
+  std::replace(relName.begin(), relName.end(), '/', '_');
   relName += cmsys::SystemTools::GetFilenameWithoutLastExtension(qrcInputFile);
 
   const ::std::string qrcBuildFile = this->Builddir + qrcOutputFile;

Source/cmSeparateArgumentsCommand.cxx

@@ -62,7 +62,7 @@ bool cmSeparateArgumentsCommand::InitialPass(
     // Original space-replacement version of command.
     if (const char* def = this->Makefile->GetDefinition(var)) {
       std::string value = def;
-      cmSystemTools::ReplaceString(value, " ", ";");
+      std::replace(value.begin(), value.end(), ' ', ';');
       this->Makefile->AddDefinition(var, value.c_str());
     }
   } else {

Source/cmVisualStudio10TargetGenerator.cxx

@@ -2207,7 +2207,7 @@ bool cmVisualStudio10TargetGenerator::ComputeLinkOptions(
     libs = libs.substr(0, pos + 1);
   }
   // Replace spaces in libs with ;
-  cmSystemTools::ReplaceString(libs, " ", ";");
+  std::replace(libs.begin(), libs.end(), ' ', ';');
   std::vector<std::string> libVec;
   cmSystemTools::ExpandListArgument(libs, libVec);
 

Source/cmVisualStudioWCEPlatformParser.cxx

@@ -141,8 +141,8 @@ std::string cmVisualStudioWCEPlatformParser::FixPaths(
   cmSystemTools::ReplaceString(ret, "$(PATH)", "%PATH%");
   cmSystemTools::ReplaceString(ret, "$(VCInstallDir)", VcInstallDir.c_str());
   cmSystemTools::ReplaceString(ret, "$(VSInstallDir)", VsInstallDir.c_str());
-  cmSystemTools::ReplaceString(ret, "\\", "/");
+  std::replace(ret.begin(), ret.end(), '\\', '/');
   cmSystemTools::ReplaceString(ret, "//", "/");
-  cmSystemTools::ReplaceString(ret, "/", "\\");
+  std::replace(ret.begin(), ret.end(), '/', '\\');
   return ret;
 }