--
-- vs2010_vcxproj.lua
-- Generate a Visual Studio 201x C/C++ project.
-- Copyright (c) 2009-2014 Jason Perkins and the Premake project
--

	premake.vstudio.vc2010 = {}

	local p = premake
	local vstudio = p.vstudio
	local project = p.project
	local config = p.config
	local fileconfig = p.fileconfig
	local tree = p.tree

	local m = p.vstudio.vc2010


---
-- Add namespace for element definition lists for premake.callArray()
---

	m.elements = {}


--
-- Generate a Visual Studio 201x C++ project, with support for the new platforms API.
--

	m.elements.project = function(prj)
		return {
			m.projectConfigurations,
			m.globals,
			m.importDefaultProps,
			m.configurationPropertiesGroup,
			m.importExtensionSettings,
			m.propertySheetGroup,
			m.userMacros,
			m.outputPropertiesGroup,
			m.itemDefinitionGroups,
			m.assemblyReferences,
			m.files,
			m.projectReferences,
			m.importExtensionTargets,
		}
	end

	function m.generate(prj)
		io.utf8()
        m.xmlDeclaration()
		m.project()
		p.callArray(m.elements.project, prj)
		p.out('</Project>')
	end



--
-- Output the XML declaration and opening <Project> tag.
--

	function m.project()
		local action = premake.action.current()
		p.push('<Project DefaultTargets="Build" ToolsVersion="%s" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">',
			action.vstudio.toolsVersion)
	end


--
-- Write out the list of project configurations, which pairs build
-- configurations with architectures.
--

	function m.projectConfigurations(prj)

		-- build a list of all architectures used in this project
		local platforms = {}
		for cfg in project.eachconfig(prj) do
			local arch = vstudio.archFromConfig(cfg, true)
			if not table.contains(platforms, arch) then
				table.insert(platforms, arch)
			end
		end

		local configs = {}
		_p(1,'<ItemGroup Label="ProjectConfigurations">')
		for cfg in project.eachconfig(prj) do
			for _, arch in ipairs(platforms) do
				local prjcfg = vstudio.projectConfig(cfg, arch)
				if not configs[prjcfg] then
					configs[prjcfg] = prjcfg
					_x(2,'<ProjectConfiguration Include="%s">', vstudio.projectConfig(cfg, arch))
					_x(3,'<Configuration>%s</Configuration>', vstudio.projectPlatform(cfg))
					_p(3,'<Platform>%s</Platform>', arch)
					_p(2,'</ProjectConfiguration>')
				end
			end
		end
		_p(1,'</ItemGroup>')
	end


--
-- Write out the TargetFrameworkVersion property.
--

	function m.targetFramework(prj)
		local action = premake.action.current()
		local tools = string.format(' ToolsVersion="%s"', action.vstudio.toolsVersion)

		local framework = prj.framework or action.vstudio.targetFramework or "4.0"
		_p(2,'<TargetFrameworkVersion>v%s</TargetFrameworkVersion>', framework)
	end



--
-- Write out the Globals property group.
--

	m.elements.globals = function(prj)
		return {
			m.projectGuid,
			m.ignoreWarnDuplicateFilename,
			m.keyword,
			m.projectName,
		}
	end

	function m.globals(prj)
		m.propertyGroup(nil, "Globals")
		p.callArray(m.elements.globals, prj)
		_p(1,'</PropertyGroup>')
	end


--
-- Write out the configuration property group: what kind of binary it
-- produces, and some global settings.
--

	m.elements.configurationProperties = function(cfg)
		if cfg.kind == p.UTILITY then
			return {
				m.configurationType,
			}
		else
			return {
				m.configurationType,
				m.useDebugLibraries,
				m.useOfMfc,
				m.useOfAtl,
				m.clrSupport,
				m.characterSet,
				m.platformToolset,
				m.wholeProgramOptimization,
				m.nmakeOutDirs,
			}
		end
	end

	function m.configurationProperties(cfg)
		m.propertyGroup(cfg, "Configuration")
		p.callArray(m.elements.configurationProperties, cfg)
		_p(1,'</PropertyGroup>')
	end

	function m.configurationPropertiesGroup(prj)
		for cfg in project.eachconfig(prj) do
			m.configurationProperties(cfg)
		end
	end



--
-- Write the output property group, which includes the output and intermediate
-- directories, manifest, etc.
--

	m.elements.outputProperties = function(cfg)
		if cfg.kind == p.UTILITY then
			return {
				m.outDir,
				m.intDir,
				m.extensionsToDeleteOnClean,
			}
		else
			return {
				m.linkIncremental,
				m.ignoreImportLibrary,
				m.outDir,
				m.outputFile,
				m.intDir,
				m.targetName,
				m.targetExt,
				m.imageXexOutput,
				m.generateManifest,
				m.extensionsToDeleteOnClean,
			}
		end
	end

	function m.outputProperties(cfg)
		if not vstudio.isMakefile(cfg) then
			m.propertyGroup(cfg)
			p.callArray(m.elements.outputProperties, cfg)
			_p(1,'</PropertyGroup>')
		end
	end

	function m.outputPropertiesGroup(prj)
		for cfg in project.eachconfig(prj) do
			m.outputProperties(cfg)
			m.nmakeProperties(cfg)
		end
	end



--
-- Write the NMake property group for Makefile projects, which includes the custom
-- build commands, output file location, etc.
--

	function m.nmakeProperties(cfg)
		if vstudio.isMakefile(cfg) then
			m.propertyGroup(cfg)
			m.nmakeOutput(cfg)
			m.nmakeCommandLine(cfg, cfg.buildcommands, "Build")
			m.nmakeCommandLine(cfg, cfg.rebuildcommands, "ReBuild")
			m.nmakeCommandLine(cfg, cfg.cleancommands, "Clean")
			_p(1,'</PropertyGroup>')
		end
	end


--
-- Write a configuration's item definition group, which contains all
-- of the per-configuration compile and link settings.
--

	m.elements.itemDefinitionGroup = function(cfg)
		if cfg.kind == p.UTILITY then
			return {
				m.ruleVars,
				m.buildEvents,
			}
		else
			return {
				m.clCompile,
				m.resourceCompile,
				m.linker,
				m.manifest,
				m.buildEvents,
				m.imageXex,
				m.deploy,
				m.ruleVars,
			}
		end
	end

	function m.itemDefinitionGroup(cfg)
		if not vstudio.isMakefile(cfg) then
			p.push('<ItemDefinitionGroup %s>', m.condition(cfg))
			p.callArray(m.elements.itemDefinitionGroup, cfg)
			p.pop('</ItemDefinitionGroup>')

		else
			if cfg == project.getfirstconfig(cfg.project) then
				p.w('<ItemDefinitionGroup>')
				p.w('</ItemDefinitionGroup>')
			end
		end
	end

	function m.itemDefinitionGroups(prj)
		for cfg in project.eachconfig(prj) do
			m.itemDefinitionGroup(cfg)
		end
	end



--
-- Write the the <ClCompile> compiler settings block.
--

	m.elements.clCompile = function(cfg)
		return {
			m.precompiledHeader,
			m.warningLevel,
			m.treatWarningAsError,
			m.disableSpecificWarnings,
			m.treatSpecificWarningsAsErrors,
			m.basicRuntimeChecks,
			m.clCompilePreprocessorDefinitions,
			m.clCompileUndefinePreprocessorDefinitions,
			m.clCompileAdditionalIncludeDirectories,
			m.clCompileAdditionalUsingDirectories,
			m.forceIncludes,
			m.debugInformationFormat,
			m.programDataBaseFileName,
			m.optimization,
			m.functionLevelLinking,
			m.intrinsicFunctions,
			m.minimalRebuild,
			m.omitFramePointers,
			m.stringPooling,
			m.runtimeLibrary,
			m.omitDefaultLib,
			m.exceptionHandling,
			m.runtimeTypeInfo,
			m.bufferSecurityCheck,
			m.treatWChar_tAsBuiltInType,
			m.floatingPointModel,
			m.enableEnhancedInstructionSet,
			m.multiProcessorCompilation,
			m.additionalCompileOptions,
			m.compileAs,
		}
	end

	function m.clCompile(cfg)
		p.push('<ClCompile>')
		p.callArray(m.elements.clCompile, cfg)
		p.pop('</ClCompile>')
	end


--
-- Write out the resource compiler block.
--

	m.elements.resourceCompile = function(cfg)
		return {
			m.resourcePreprocessorDefinitions,
			m.resourceAdditionalIncludeDirectories,
			m.culture,
		}
	end

	function m.resourceCompile(cfg)
		if cfg.system ~= premake.XBOX360 and config.hasResourceFiles(cfg) then
			local contents = p.capture(function ()
				p.push()
				p.callArray(m.elements.resourceCompile, cfg)
				p.pop()
			end)

			if #contents > 0 then
				p.push('<ResourceCompile>')
				p.outln(contents)
				p.pop('</ResourceCompile>')
			end
		end
	end


--
-- Write out the linker tool block.
--

	m.elements.linker = function(cfg, explicit)
		return {
			m.link,
			m.lib,
			m.linkLibraryDependencies,
		}
	end

	function m.linker(cfg)
		local explicit = vstudio.needsExplicitLink(cfg)
		p.callArray(m.elements.linker, cfg, explicit)
	end



	m.elements.link = function(cfg, explicit)
		if cfg.kind == p.STATICLIB then
			return {
				m.subSystem,
				m.generateDebugInformation,
				m.optimizeReferences,
			}
		else
			return {
				m.subSystem,
				m.generateDebugInformation,
				m.optimizeReferences,
				m.additionalDependencies,
				m.additionalLibraryDirectories,
				m.importLibrary,
				m.entryPointSymbol,
				m.generateMapFile,
				m.moduleDefinitionFile,
				m.treatLinkerWarningAsErrors,
				m.additionalLinkOptions,
			}
		end
	end

	function m.link(cfg, explicit)
		local contents = p.capture(function ()
			p.push()
			p.callArray(m.elements.link, cfg, explicit)
			p.pop()
		end)
		if #contents > 0 then
			p.push('<Link>')
			p.outln(contents)
			p.pop('</Link>')
		end
	end



	m.elements.lib = function(cfg, explicit)
		if cfg.kind == p.STATICLIB then
			return {
				m.treatLinkerWarningAsErrors,
				m.additionalLinkOptions,
			}
		else
			return {
			}
		end
	end

	function m.lib(cfg, explicit)
		local contents = p.capture(function ()
			p.push()
			p.callArray(m.elements.lib, cfg, explicit)
			p.pop()
		end)
		if #contents > 0 then
			p.push('<Lib>')
			p.outln(contents)
			p.pop('</Lib>')
		end
	end



--
-- Write the manifest section.
--

	function m.manifest(cfg)
		-- no additional manifests in static lib
		if cfg.kind == premake.STATICLIB then
			return
		end

		-- get the manifests files
		local manifests = {}
		for _, fname in ipairs(cfg.files) do
			if path.getextension(fname) == ".manifest" then
				table.insert(manifests, project.getrelative(cfg.project, fname))
			end
		end

		-- when a project is not using manifest files, visual studio doesn't write the section.
		if #manifests == 0 then
			return
		end

		p.push('<Manifest>')
		m.element("AdditionalManifestFiles", nil, "%s %%(AdditionalManifestFiles)", table.concat(manifests, " "))
		p.pop('</Manifest>')
	end



---
-- Write out the pre- and post-build event settings.
---

	function m.buildEvents(cfg)
		local write = function (event)
			local name = event .. "Event"
			local field = event:lower()
			local steps = cfg[field .. "commands"]
			local msg = cfg[field .. "message"]

			if #steps > 0 then
				steps = os.translateCommands(steps, p.WINDOWS)
				_p(2,'<%s>', name)
				_x(3,'<Command>%s</Command>', table.implode(steps, "", "", "\r\n"))
				if msg then
					_x(3,'<Message>%s</Message>', msg)
				end
				_p(2,'</%s>', name)
			end
		end

		write("PreBuild")
		write("PreLink")
		write("PostBuild")
	end



---
-- Write out project-level custom rule variables.
---

	function m.ruleVars(cfg)
		for i = 1, #cfg.rules do
			local rule = p.global.getRule(cfg.rules[i])

			local contents = p.capture(function ()
				p.push()
				for prop in p.rule.eachProperty(rule) do
					local fld = p.rule.getPropertyField(rule, prop)
					local value = cfg[fld.name]
					if value ~= nil then
						value = p.rule.getPropertyString(rule, prop, value)
						if value ~= nil and #value > 0 then
							m.element(prop.name, nil, '%s', value)
						end
					end
				end
				p.pop()
			end)

			if #contents > 0 then
				p.push('<%s>', rule.name)
				p.outln(contents)
				p.pop('</%s>', rule.name)
			end
		end
	end



--
-- Reference any managed assemblies listed in the links()
--

	function m.assemblyReferences(prj)
		-- Visual Studio doesn't support per-config references; use
		-- whatever is contained in the first configuration
		local cfg = project.getfirstconfig(prj)

		local refs = config.getlinks(cfg, "system", "fullpath", "managed")
		 if #refs > 0 then
		 	_p(1,'<ItemGroup>')
		 	table.foreachi(refs, function(value)

				-- If the link contains a '/' then it is a relative path to
				-- a local assembly. Otherwise treat it as a system assembly.
				if value:find('/', 1, true) then
					_x(2,'<Reference Include="%s">', path.getbasename(value))
					_x(3,'<HintPath>%s</HintPath>', path.translate(value))
					_p(2,'</Reference>')
				else
					_x(2,'<Reference Include="%s" />', path.getbasename(value))
				end

		 	end)
		 	_p(1,'</ItemGroup>')
		 end
	end


---
-- Write out the list of source code files, and any associated configuration.
---

	m.elements.fileGroups = {
		"clInclude",
		"clCompile",
		"none",
		"resourceCompile",
		"customBuild",
		"customRule"
	}

	m.elements.files = function(prj, groups)
		local calls = {}
		for i, group in ipairs(m.elements.fileGroups) do
			calls[i] = m[group .. "Files"]
		end
		return calls
	end

	function m.files(prj)
		-- Categorize the source files in groups by build rule; each will
		-- be written to a separate item group by one of the handlers
		local groups = m.categorizeSources(prj)
		p.callArray(m.elements.files, prj, groups)
	end


	function m.clCompileFiles(prj, group)
		local files = group.ClCompile or {}
		if #files > 0  then
			p.push('<ItemGroup>')

			for _, file in ipairs(files) do
				local contents = p.capture(function ()
					p.push()
					for cfg in project.eachconfig(prj) do
						local fcfg = fileconfig.getconfig(file, cfg)
						m.excludedFromBuild(cfg, fcfg)
						if fcfg then
							local condition = m.condition(cfg)
							m.objectFileName(fcfg)
							m.clCompilePreprocessorDefinitions(fcfg, condition)
							m.clCompileUndefinePreprocessorDefinitions(fcfg, condition)
							m.optimization(fcfg, condition)
							m.forceIncludes(fcfg, condition)
							m.precompiledHeader(cfg, fcfg, condition)
							m.enableEnhancedInstructionSet(fcfg, condition)
							m.additionalCompileOptions(fcfg, condition)
							m.disableSpecificWarnings(fcfg, condition)
							m.treatSpecificWarningsAsErrors(fcfg, condition)
						end
					end
					p.pop()
				end)

				if #contents > 0 then
					p.push('<ClCompile Include=\"%s\">', path.translate(file.relpath))
					p.outln(contents)
					p.pop('</ClCompile>')
				else
					p.x('<ClCompile Include=\"%s\" />', path.translate(file.relpath))
				end

			end
			p.pop('</ItemGroup>')
		end
	end


	function m.clIncludeFiles(prj, groups)
		local files = groups.ClInclude or {}
		if #files > 0  then
			p.push('<ItemGroup>')
			for i, file in ipairs(files) do
				p.x('<ClInclude Include=\"%s\" />', path.translate(file.relpath))
			end
			p.pop('</ItemGroup>')
		end
	end


	function m.customBuildFiles(prj, groups)
		local files = groups.CustomBuild or {}
		if #files > 0  then
			p.push('<ItemGroup>')
			for _, file in ipairs(files) do
				p.push('<CustomBuild Include=\"%s\">', path.translate(file.relpath))
				p.w('<FileType>Document</FileType>')

				for cfg in project.eachconfig(prj) do
					local condition = m.condition(cfg)
					local filecfg = fileconfig.getconfig(file, cfg)
					if fileconfig.hasCustomBuildRule(filecfg) then
						m.excludedFromBuild(cfg, filecfg)

						local commands = os.translateCommands(filecfg.buildcommands, p.WINDOWS)
						commands = table.concat(commands,'\r\n')
						m.element("Command", condition, '%s', commands)

						local outputs = project.getrelative(prj, filecfg.buildoutputs)
						m.element("Outputs", condition, '%s', table.concat(outputs, ";"))

						if filecfg.buildmessage then
							m.element("Message", condition, '%s', filecfg.buildmessage)
						end

						if filecfg.buildinputs and #filecfg.buildinputs > 0 then
							local inputs = project.getrelative(prj, filecfg.buildinputs)
							m.element("AdditionalInputs", condition, '%s', table.concat(inputs, ";"))
						end
					end
				end

				p.pop('</CustomBuild>')
			end
			p.pop('</ItemGroup>')
		end
	end


	function m.customRuleFiles(prj, groups)
		for i = 1, #prj.rules do
			local rule = p.global.getRule(prj.rules[i])
			local files = groups[rule.name]
			if files and #files > 0 then
				p.push('<ItemGroup>')

				for _, file in ipairs(files) do
					local contents = p.capture(function()
						p.push()
						for prop in p.rule.eachProperty(rule) do
							local fld = p.rule.getPropertyField(rule, prop)

							for cfg in project.eachconfig(prj) do
								local fcfg = fileconfig.getconfig(file, cfg)
								if fcfg and fcfg[fld.name] then
									local value = p.rule.getPropertyString(rule, prop, fcfg[fld.name])
									if value and #value > 0 then
										m.element(prop.name, m.condition(cfg), '%s', value)
									end
								end
							end

						end
						p.pop()
					end)

					if #contents > 0 then
						p.push('<%s Include=\"%s\">', rule.name, path.translate(file.relpath))
						p.outln(contents)
						p.pop('</%s>', rule.name)
					else
						p.x('<%s Include=\"%s\" />', rule.name, path.translate(file.relpath))
					end
				end

				p.pop('</ItemGroup>')
			end
		end
	end



	function m.noneFiles(prj, groups)
		local files = groups.None or {}
		if #files > 0  then
			p.push('<ItemGroup>')
			for i, file in ipairs(files) do
				p.x('<None Include=\"%s\" />', path.translate(file.relpath))
			end
			p.pop('</ItemGroup>')
		end
	end


	function m.resourceCompileFiles(prj, groups)
		local files = groups.ResourceCompile or {}
		if #files > 0  then
			p.push('<ItemGroup>')
			for i, file in ipairs(files) do
				local contents = p.capture(function ()
					p.push()
					for cfg in project.eachconfig(prj) do
						local condition = m.condition(cfg)
						local filecfg = fileconfig.getconfig(file, cfg)
						if cfg.system == premake.WINDOWS then
							m.excludedFromBuild(cfg, filecfg)
						end
					end
					p.pop()
				end)

				if #contents > 0 then
					p.push('<ResourceCompile Include=\"%s\">', path.translate(file.relpath))
					p.outln(contents)
					p.pop('</ResourceCompile>')
				else
					p.x('<ResourceCompile Include=\"%s\" />', path.translate(file.relpath))
				end
			end
			p.pop('</ItemGroup>')
		end
	end


	function m.categorize(prj, file)
		-- If any configuration for this file uses a custom build step,
		-- that's the category to use
		for cfg in project.eachconfig(prj) do
			local fcfg = fileconfig.getconfig(file, cfg)
			if fileconfig.hasCustomBuildRule(fcfg) then
				return "CustomBuild"
			end
		end

		-- If there is a custom rule associated with it, use that
		local rule = p.global.getRuleForFile(file.name, prj.rules)
		if rule then
			return rule.name
		end

		-- Otherwise use the file extension to deduce a category
		if path.iscppfile(file.name) then
			return "ClCompile"
		elseif path.iscppheader(file.name) then
			return "ClInclude"
		elseif path.isresourcefile(file.name) then
			return "ResourceCompile"
		else
			return "None"
		end
	end


	function m.categorizeSources(prj)
		local groups = prj._vc2010_sources
		if groups then
			return groups
		end

		groups = {}
		prj._vc2010_sources = groups

		local tr = project.getsourcetree(prj)
		tree.traverse(tr, {
			onleaf = function(node)
				local cat = m.categorize(prj, node)
				groups[cat] = groups[cat] or {}
				table.insert(groups[cat], node)
			end
		})

		-- sort by relative-to path; otherwise VS will reorder the files
		for group, files in pairs(groups) do
			table.sort(files, function (a, b)
				return a.relpath < b.relpath
			end)
		end

		return groups
	end



--
-- Generate the list of project dependencies.
--

	m.elements.projectReferences = function(prj, ref)
		if prj.clr ~= p.OFF then
			return {
				m.referenceProject,
				m.referencePrivate,
				m.referenceOutputAssembly,
				m.referenceCopyLocalSatelliteAssemblies,
				m.referenceLinkLibraryDependencies,
				m.referenceUseLibraryDependences,
			}
		else
			return {
				m.referenceProject,
			}
		end
	end

	function m.projectReferences(prj)
		local refs = project.getdependencies(prj)
		if #refs > 0 then
			p.push('<ItemGroup>')
			for _, ref in ipairs(refs) do
				local relpath = project.getrelative(prj, vstudio.projectfile(ref))
				p.push('<ProjectReference Include=\"%s\">', path.translate(relpath))
				p.callArray(m.elements.projectReferences, prj, ref)
				p.pop('</ProjectReference>')
			end
			p.pop('</ItemGroup>')
		end
	end



---------------------------------------------------------------------------
--
-- Handlers for individual project elements
--
---------------------------------------------------------------------------

	function m.additionalDependencies(cfg, explicit)
		local links

		-- check to see if this project uses an external toolset. If so, let the
		-- toolset define the format of the links
		local toolset = config.toolset(cfg)
		if toolset then
			links = toolset.getlinks(cfg, not explicit)
		else
			links = vstudio.getLinks(cfg, explicit)
		end

		if #links > 0 then
			links = path.translate(table.concat(links, ";"))
			p.x('<AdditionalDependencies>%s;%%(AdditionalDependencies)</AdditionalDependencies>', links)
		end
	end


	function m.additionalIncludeDirectories(cfg, includedirs)
		if #includedirs > 0 then
			local dirs = project.getrelative(cfg.project, includedirs)
			dirs = path.translate(table.concat(dirs, ";"))
			p.x('<AdditionalIncludeDirectories>%s;%%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>', dirs)
		end
	end


	function m.additionalLibraryDirectories(cfg)
		if #cfg.libdirs > 0 then
			local dirs = project.getrelative(cfg.project, cfg.libdirs)
			dirs = path.translate(table.concat(dirs, ";"))
			_x(3,'<AdditionalLibraryDirectories>%s;%%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>', dirs)
		end
	end

	function m.additionalUsingDirectories(cfg)
		if #cfg.usingdirs > 0 then
			local dirs = project.getrelative(cfg.project, cfg.usingdirs)
			dirs = path.translate(table.concat(dirs, ";"))
			p.x('<AdditionalUsingDirectories>%s;%%(AdditionalUsingDirectories)</AdditionalUsingDirectories>', dirs)
		end
	end


	function m.additionalCompileOptions(cfg, condition)
		if #cfg.buildoptions > 0 then
			local opts = table.concat(cfg.buildoptions, " ")
			m.element("AdditionalOptions", condition, '%s %%(AdditionalOptions)', opts)
		end
	end


	function m.additionalLinkOptions(cfg)
		if #cfg.linkoptions > 0 then
			local opts = table.concat(cfg.linkoptions, " ")
			_x(3, '<AdditionalOptions>%s %%(AdditionalOptions)</AdditionalOptions>', opts)
		end
	end


	function m.basicRuntimeChecks(cfg)
		if cfg.flags.NoRuntimeChecks then
			p.w('<BasicRuntimeChecks>Default</BasicRuntimeChecks>')
		end
	end


	function m.characterSet(cfg)
		if not vstudio.isMakefile(cfg) then
			_p(2,'<CharacterSet>%s</CharacterSet>', iif(cfg.flags.Unicode, "Unicode", "MultiByte"))
		end
	end

	function m.wholeProgramOptimization(cfg)
		if cfg.flags.LinkTimeOptimization then
			_p(2,'<WholeProgramOptimization>true</WholeProgramOptimization>')
		end
	end

	function m.clCompileAdditionalIncludeDirectories(cfg)
		m.additionalIncludeDirectories(cfg, cfg.includedirs)
	end

	function m.clCompileAdditionalUsingDirectories(cfg)
		m.additionalUsingDirectories(cfg, cfg.usingdirs)
	end


	function m.clCompilePreprocessorDefinitions(cfg, condition)
		m.preprocessorDefinitions(cfg, cfg.defines, false, condition)
	end


	function m.clCompileUndefinePreprocessorDefinitions(cfg, condition)
		m.undefinePreprocessorDefinitions(cfg, cfg.undefines, false, condition)
	end


	function m.clrSupport(cfg)
		local value
		if cfg.clr == "On" or cfg.clr == "Unsafe" then
			value = "true"
		elseif cfg.clr ~= p.OFF then
			value = cfg.clr
		end
		if value then
			p.w('<CLRSupport>%s</CLRSupport>', value)
		end
	end


	function m.compileAs(cfg)
		if cfg.project.language == "C" then
			_p(3,'<CompileAs>CompileAsC</CompileAs>')
		end
	end


	function m.configurationType(cfg)
		local types = {
			SharedLib = "DynamicLibrary",
			StaticLib = "StaticLibrary",
			ConsoleApp = "Application",
			WindowedApp = "Application",
			Makefile = "Makefile",
			None = "Makefile",
			Utility = "Utility",
		}
		_p(2,'<ConfigurationType>%s</ConfigurationType>', types[cfg.kind])
	end


	function m.culture(cfg)
		local value = vstudio.cultureForLocale(cfg.locale)
		if value then
			p.w('<Culture>0x%04x</Culture>', value)
		end
	end


	function m.debugInformationFormat(cfg)
		local value
		if cfg.flags.Symbols then
			if cfg.debugformat == "c7" then
				value = "OldStyle"
			elseif cfg.architecture == "x64" or
				   cfg.clr ~= p.OFF or
				   config.isOptimizedBuild(cfg) or
				   not cfg.editAndContinue
			then
				value = "ProgramDatabase"
			else
				value = "EditAndContinue"
			end
		end
		if value then
			p.w('<DebugInformationFormat>%s</DebugInformationFormat>', value)
		end
	end


	function m.deploy(cfg)
		if cfg.system == premake.XBOX360 then
			_p(2,'<Deploy>')
			_p(3,'<DeploymentType>CopyToHardDrive</DeploymentType>')
			_p(3,'<DvdEmulationType>ZeroSeekTimes</DvdEmulationType>')
			_p(3,'<DeploymentFiles>$(RemoteRoot)=$(ImagePath);</DeploymentFiles>')
			_p(2,'</Deploy>')
		end
	end


	function m.enableEnhancedInstructionSet(cfg, condition)
		local value

		local x = cfg.vectorextensions
		if _ACTION > "vc2010" and x == "AVX" then
			value = "AdvancedVectorExtensions"
		elseif x == "SSE2" then
			value = "StreamingSIMDExtensions2"
		elseif x == "SSE" then
			value = "StreamingSIMDExtensions"
		end

		if value then
			m.element('EnableEnhancedInstructionSet', condition, value)
		end
	end


	function m.entryPointSymbol(cfg)
		if (cfg.kind == premake.CONSOLEAPP or cfg.kind == premake.WINDOWEDAPP) and
		   not cfg.flags.WinMain and
		   cfg.clr == p.OFF and
		   cfg.system ~= premake.XBOX360
		then
			_p(3,'<EntryPointSymbol>mainCRTStartup</EntryPointSymbol>')
		end
	end


	function m.exceptionHandling(cfg)
		if cfg.flags.NoExceptions then
			p.w('<ExceptionHandling>false</ExceptionHandling>')
		elseif cfg.flags.SEH then
			p.w('<ExceptionHandling>Async</ExceptionHandling>')
		end
	end


	function m.excludedFromBuild(cfg, filecfg)
		if not filecfg or filecfg.flags.ExcludeFromBuild then
			m.element("ExcludedFromBuild", m.condition(cfg), "true")
		end
	end


	function m.extensionsToDeleteOnClean(cfg)
		if #cfg.cleanExtensions > 0 then
			local value = table.implode(cfg.cleanExtensions, "*", ";", "")
			m.element("ExtensionsToDeleteOnClean", nil, value .. "$(ExtensionsToDeleteOnClean)")
		end
	end


	function m.floatingPointModel(cfg)
		if cfg.floatingpoint then
			p.w('<FloatingPointModel>%s</FloatingPointModel>', cfg.floatingpoint)
		end
	end


	function m.forceIncludes(cfg, condition)
		if #cfg.forceincludes > 0 then
			local includes = path.translate(project.getrelative(cfg.project, cfg.forceincludes))
			m.element("ForcedIncludeFiles", condition, table.concat(includes, ';'))
		end
		if #cfg.forceusings > 0 then
			local usings = path.translate(project.getrelative(cfg.project, cfg.forceusings))
			m.element("ForcedUsingFiles", condition, table.concat(usings, ';'))
		end
	end


	function m.functionLevelLinking(cfg)
		if config.isOptimizedBuild(cfg) then
			p.w('<FunctionLevelLinking>true</FunctionLevelLinking>')
		end
	end


	function m.generateDebugInformation(cfg)
		_p(3,'<GenerateDebugInformation>%s</GenerateDebugInformation>', tostring(cfg.flags.Symbols ~= nil))
	end


	function m.generateManifest(cfg)
		if cfg.flags.NoManifest then
			_p(2,'<GenerateManifest>false</GenerateManifest>')
		end
	end


	function m.generateMapFile(cfg)
		if cfg.flags.Maps then
			_p(3,'<GenerateMapFile>true</GenerateMapFile>')
		end
	end


	function m.ignoreWarnDuplicateFilename(prj)
		-- VS 2013 warns on duplicate file names, even those files which are
		-- contained in different, mututally exclusive configurations. See:
		-- http://connect.microsoft.com/VisualStudio/feedback/details/797460/incorrect-warning-msb8027-reported-for-files-excluded-from-build
		-- Premake already adds unique object names to conflicting file names, so
		-- just go ahead and disable that warning.
		if _ACTION > "vs2012" then
			p.w('<IgnoreWarnCompileDuplicatedFilename>true</IgnoreWarnCompileDuplicatedFilename>')
		end
	end


	function m.ignoreImportLibrary(cfg)
		if cfg.kind == premake.SHAREDLIB and cfg.flags.NoImportLib then
			_p(2,'<IgnoreImportLibrary>true</IgnoreImportLibrary>');
		end
	end


	function m.imageXex(cfg)
		if cfg.system == premake.XBOX360 then
			_p(2,'<ImageXex>')
			if cfg.configFile then
				_p(3,'<ConfigurationFile>%s</ConfigurationFile>', cfg.configFile)
			else
				_p(3,'<ConfigurationFile>')
				_p(3,'</ConfigurationFile>')
			end
			_p(3,'<AdditionalSections>')
			_p(3,'</AdditionalSections>')
			_p(2,'</ImageXex>')
		end
	end


	function m.imageXexOutput(cfg)
		if cfg.system == premake.XBOX360 then
			_x(2,'<ImageXexOutput>$(OutDir)$(TargetName).xex</ImageXexOutput>')
		end
	end


	function m.importExtensionTargets(prj)
		p.w('<Import Project="$(VCTargetsPath)\\Microsoft.Cpp.targets" />')
		p.push('<ImportGroup Label="ExtensionTargets">')

		for i = 1, #prj.rules do
			local rule = p.global.getRule(prj.rules[i])
			local loc = project.getrelative(prj, premake.filename(rule, ".targets"))
			p.x('<Import Project="%s" />', path.translate(loc))
		end

		p.pop('</ImportGroup>')
	end



	function m.importDefaultProps(prj)
		_p(1,'<Import Project="$(VCTargetsPath)\\Microsoft.Cpp.Default.props" />')
	end



	function m.importExtensionSettings(prj)
		p.w('<Import Project="$(VCTargetsPath)\\Microsoft.Cpp.props" />')
		p.push('<ImportGroup Label="ExtensionSettings">')

		for i = 1, #prj.rules do
			local rule = p.global.getRule(prj.rules[i])
			local loc = project.getrelative(prj, premake.filename(rule, ".props"))
			p.x('<Import Project="%s" />', path.translate(loc))
		end

		p.pop('</ImportGroup>')
	end



	function m.importLibrary(cfg)
		if cfg.kind == premake.SHAREDLIB then
			_x(3,'<ImportLibrary>%s</ImportLibrary>', path.translate(cfg.linktarget.relpath))
		end
	end


	function m.intDir(cfg)
		local objdir = project.getrelative(cfg.project, cfg.objdir)
		_x(2,'<IntDir>%s\\</IntDir>', path.translate(objdir))
	end


	function m.intrinsicFunctions(cfg)
		if config.isOptimizedBuild(cfg) then
			p.w('<IntrinsicFunctions>true</IntrinsicFunctions>')
		end
	end



	function m.keyword(prj)
		-- try to determine what kind of targets we're building here
		local isWin, isManaged, isMakefile
		for cfg in project.eachconfig(prj) do
			if cfg.system == premake.WINDOWS then
				isWin = true
			end
			if cfg.clr ~= p.OFF then
				isManaged = true
			end
			if vstudio.isMakefile(cfg) then
				isMakefile = true
			end
		end

		if isWin then
			if isMakefile then
				_p(2,'<Keyword>MakeFileProj</Keyword>')
			else
				if isManaged then
					m.targetFramework(prj)
					_p(2,'<Keyword>ManagedCProj</Keyword>')
				else
					_p(2,'<Keyword>Win32Proj</Keyword>')
				end
				_p(2,'<RootNamespace>%s</RootNamespace>', prj.name)
			end
		end
	end



	function m.linkIncremental(cfg)
		if cfg.kind ~= premake.STATICLIB then
			_p(2,'<LinkIncremental>%s</LinkIncremental>', tostring(config.canLinkIncremental(cfg)))
		end
	end


	function m.linkLibraryDependencies(cfg, explicit)
		-- Left to its own devices, VS will happily link against a project dependency
		-- that has been excluded from the build. As a workaround, disable dependency
		-- linking and list all siblings explicitly
		if explicit then
			_p(2,'<ProjectReference>')
			_p(3,'<LinkLibraryDependencies>false</LinkLibraryDependencies>')
			_p(2,'</ProjectReference>')
		end
	end


	function m.minimalRebuild(cfg)
		if config.isOptimizedBuild(cfg) or
		   cfg.flags.NoMinimalRebuild or
		   cfg.flags.MultiProcessorCompile or
		   cfg.debugformat == premake.C7
		then
			p.w('<MinimalRebuild>false</MinimalRebuild>')
		end
	end


	function m.moduleDefinitionFile(cfg)
		local df = config.findfile(cfg, ".def")
		if df then
			_p(3,'<ModuleDefinitionFile>%s</ModuleDefinitionFile>', df)
		end
	end


	function m.multiProcessorCompilation(cfg)
		if cfg.flags.MultiProcessorCompile then
			p.w('<MultiProcessorCompilation>true</MultiProcessorCompilation>')
		end
	end


	function m.nmakeCommandLine(cfg, commands, phase)
		if #commands > 0 then
			commands = os.translateCommands(commands, p.WINDOWS)
			commands = table.concat(premake.esc(commands), p.eol())
			_p(2, '<NMake%sCommandLine>%s</NMake%sCommandLine>', phase, commands, phase)
		end
	end


	function m.nmakeOutDirs(cfg)
		if vstudio.isMakefile(cfg) then
			m.outDir(cfg)
			m.intDir(cfg)
		end
	end

	function m.nmakeOutput(cfg)
		_p(2,'<NMakeOutput>$(OutDir)%s</NMakeOutput>', cfg.buildtarget.name)
	end



	function m.objectFileName(fcfg)
		if fcfg.objname ~= fcfg.basename then
			p.w('<ObjectFileName %s>$(IntDir)\\%s.obj</ObjectFileName>', m.condition(fcfg.config), fcfg.objname)
		end
	end



	function m.omitDefaultLib(cfg)
		if cfg.flags.OmitDefaultLibrary then
			p.w('<OmitDefaultLibName>true</OmitDefaultLibName>')
		end
	end



	function m.omitFramePointers(cfg)
		if cfg.flags.NoFramePointer then
			p.w('<OmitFramePointers>true</OmitFramePointers>')
		end
	end


	function m.optimizeReferences(cfg)
		if config.isOptimizedBuild(cfg) then
			_p(3,'<EnableCOMDATFolding>true</EnableCOMDATFolding>')
			_p(3,'<OptimizeReferences>true</OptimizeReferences>')
		end
	end


	function m.optimization(cfg, condition)
		local map = { Off="Disabled", On="Full", Debug="Disabled", Full="Full", Size="MinSpace", Speed="MaxSpeed" }
		local value = map[cfg.optimize]
		if value or not condition then
			m.element('Optimization', condition, value or "Disabled")
		end
	end


	function m.outDir(cfg)
		local outdir = project.getrelative(cfg.project, cfg.buildtarget.directory)
		_x(2,'<OutDir>%s\\</OutDir>', path.translate(outdir))
	end


	function m.outputFile(cfg)
		if cfg.system == premake.XBOX360 then
			_p(2,'<OutputFile>$(OutDir)%s</OutputFile>', cfg.buildtarget.name)
		end
	end


	function m.platformToolset(cfg)
		local map = { vs2012 = "v110", vs2013 = "v120" }
		local value = map[_ACTION]
		if value then
			-- should only be written if there is a C/C++ file in the config
			for i = 1, #cfg.files do
				if path.iscppfile(cfg.files[i]) then
					_p(2,'<PlatformToolset>%s</PlatformToolset>', value)
					return
				end
			end
		end
	end


	function m.precompiledHeader(cfg, filecfg, condition)
		if filecfg then
			if cfg.pchsource == filecfg.abspath and not cfg.flags.NoPCH then
				m.element('PrecompiledHeader', condition, 'Create')
			elseif filecfg.flags.NoPCH then
				m.element('PrecompiledHeader', condition, 'NotUsing')
			end
		else
			if not cfg.flags.NoPCH and cfg.pchheader then
				p.w('<PrecompiledHeader>Use</PrecompiledHeader>')
				p.x('<PrecompiledHeaderFile>%s</PrecompiledHeaderFile>', cfg.pchheader)
			else
				p.w('<PrecompiledHeader>NotUsing</PrecompiledHeader>')
			end
		end
	end


	function m.preprocessorDefinitions(cfg, defines, escapeQuotes, condition)
		if #defines > 0 then
			defines = table.concat(defines, ";")
			if escapeQuotes then
				defines = defines:gsub('"', '\\"')
			end
			defines = premake.esc(defines) .. ";%%(PreprocessorDefinitions)"
			m.element('PreprocessorDefinitions', condition, defines)
		end
	end


	function m.undefinePreprocessorDefinitions(cfg, undefines, escapeQuotes, condition)
		if #undefines > 0 then
			undefines = table.concat(undefines, ";")
			if escapeQuotes then
				undefines = undefines:gsub('"', '\\"')
			end
			undefines = premake.esc(undefines) .. ";%%(UndefinePreprocessorDefinitions)"
			m.element('UndefinePreprocessorDefinitions', condition, undefines)
		end
	end


	function m.programDataBaseFileName(cfg)
		-- just a placeholder for overriding; will use the default VS name
	end


	function m.projectGuid(prj)
		_p(2,'<ProjectGuid>{%s}</ProjectGuid>', prj.uuid)
	end


	function m.projectName(prj)
		if prj.name ~= prj.filename then
			_x(2,'<ProjectName>%s</ProjectName>', prj.name)
		end
	end


	function m.propertyGroup(cfg, label)
		local cond
		if cfg then
			cond = string.format(' %s', m.condition(cfg))
		end

		if label then
			label = string.format(' Label="%s"', label)
		end

		_p(1,'<PropertyGroup%s%s>', cond or "", label or "")
	end



	function m.propertySheets(cfg)
		_p(1,'<ImportGroup Label="PropertySheets" %s>', m.condition(cfg))
		_p(2,'<Import Project="$(UserRootDir)\\Microsoft.Cpp.$(Platform).user.props" Condition="exists(\'$(UserRootDir)\\Microsoft.Cpp.$(Platform).user.props\')" Label="LocalAppDataPlatform" />')
		_p(1,'</ImportGroup>')
	end


	function m.propertySheetGroup(prj)
		for cfg in project.eachconfig(prj) do
			m.propertySheets(cfg)
		end
	end


	function m.referenceCopyLocalSatelliteAssemblies(prj, ref)
		p.w('<CopyLocalSatelliteAssemblies>false</CopyLocalSatelliteAssemblies>')
	end


	function m.referenceLinkLibraryDependencies(prj, ref)
		p.w('<LinkLibraryDependencies>true</LinkLibraryDependencies>')
	end


	function m.referenceOutputAssembly(prj, ref)
		p.w('<ReferenceOutputAssembly>true</ReferenceOutputAssembly>')
	end


	function m.referencePrivate(prj, ref)
		p.w('<Private>true</Private>')
	end


	function m.referenceProject(prj, ref)
		p.w('<Project>{%s}</Project>', ref.uuid)
	end


	function m.referenceUseLibraryDependences(prj, ref)
		p.w('<UseLibraryDependencyInputs>false</UseLibraryDependencyInputs>')
	end


	function m.resourceAdditionalIncludeDirectories(cfg)
		m.additionalIncludeDirectories(cfg, table.join(cfg.includedirs, cfg.resincludedirs))
	end


	function m.resourcePreprocessorDefinitions(cfg)
		m.preprocessorDefinitions(cfg, table.join(cfg.defines, cfg.resdefines), true)
	end


	function m.runtimeLibrary(cfg)
		local runtimes = {
			StaticDebug = "MultiThreadedDebug",
			StaticRelease = "MultiThreaded",
		}
		local runtime = runtimes[config.getruntime(cfg)]
		if runtime then
			p.w('<RuntimeLibrary>%s</RuntimeLibrary>', runtime)
		end
	end



	function m.runtimeTypeInfo(cfg)
		if cfg.flags.NoRTTI and cfg.clr == p.OFF then
			_p(3,'<RuntimeTypeInfo>false</RuntimeTypeInfo>')
		end
	end

	function m.bufferSecurityCheck(cfg)
		if cfg.flags.NoBufferSecurityCheck then
			p.w('<BufferSecurityCheck>false</BufferSecurityCheck>')
		end
	end

	function m.stringPooling(cfg)
		if config.isOptimizedBuild(cfg) then
			p.w('<StringPooling>true</StringPooling>')
		end
	end


	function m.subSystem(cfg)
		if cfg.system ~= premake.XBOX360 then
			local subsystem = iif(cfg.kind == premake.CONSOLEAPP, "Console", "Windows")
			_p(3,'<SubSystem>%s</SubSystem>', subsystem)
		end
	end


	function m.targetExt(cfg)
		local ext = cfg.buildtarget.extension
		if ext ~= "" then
			_x(2,'<TargetExt>%s</TargetExt>', ext)
		else
			_p(2,'<TargetExt>')
			_p(2,'</TargetExt>')
		end
	end


	function m.targetName(cfg)
		_x(2,'<TargetName>%s%s</TargetName>', cfg.buildtarget.prefix, cfg.buildtarget.basename)
	end


	function m.treatLinkerWarningAsErrors(cfg)
		if cfg.flags.FatalLinkWarnings then
			local el = iif(cfg.kind == premake.STATICLIB, "Lib", "Linker")
			_p(3,'<Treat%sWarningAsErrors>true</Treat%sWarningAsErrors>', el, el)
		end
	end


	function m.treatWChar_tAsBuiltInType(cfg)
		local map = { On = "true", Off = "false" }
		local value = map[cfg.nativewchar]
		if value then
			p.w('<TreatWChar_tAsBuiltInType>%s</TreatWChar_tAsBuiltInType>', value)
		end
	end


	function m.treatWarningAsError(cfg)
		if cfg.flags.FatalCompileWarnings and cfg.warnings ~= p.OFF then
			p.w('<TreatWarningAsError>true</TreatWarningAsError>')
		end
	end


	function m.disableSpecificWarnings(cfg, condition)
		if #cfg.disablewarnings > 0 then
			local warnings = table.concat(cfg.disablewarnings, ";")
			warnings = premake.esc(warnings) .. ";%%(DisableSpecificWarnings)"
			m.element('DisableSpecificWarnings', condition, warnings)
		end
	end

	
	function m.treatSpecificWarningsAsErrors(cfg, condition)
		if #cfg.fatalwarnings > 0 then
			local fatal = table.concat(cfg.fatalwarnings, ";")
			fatal = premake.esc(fatal) .. ";%%(TreatSpecificWarningsAsErrors)"
			m.element('TreatSpecificWarningsAsErrors', condition, fatal)
		end
	end


	function m.useDebugLibraries(cfg)
		local runtime = config.getruntime(cfg)
		_p(2,'<UseDebugLibraries>%s</UseDebugLibraries>', tostring(runtime:endswith("Debug")))
	end


	function m.useOfMfc(cfg)
		if cfg.flags.MFC then
			_p(2,'<UseOfMfc>%s</UseOfMfc>', iif(cfg.flags.StaticRuntime, "Static", "Dynamic"))
		end
	end

	function m.useOfAtl(cfg)
		if cfg.atl then
			_p(2,'<UseOfATL>%s</UseOfATL>', cfg.atl)
		end
	end



	function m.userMacros(cfg)
		_p(1,'<PropertyGroup Label="UserMacros" />')
	end



	function m.warningLevel(cfg)
		local map = { Off = "TurnOffAllWarnings", Extra = "Level4" }
		m.element("WarningLevel", nil, "%s", map[cfg.warnings] or "Level3")
	end



	function m.xmlDeclaration()
		p.xmlUtf8()
	end



---------------------------------------------------------------------------
--
-- Support functions
--
---------------------------------------------------------------------------

--
-- Format and return a Visual Studio Condition attribute.
--

	function m.condition(cfg)
		return string.format('Condition="\'$(Configuration)|$(Platform)\'==\'%s\'"', premake.esc(vstudio.projectConfig(cfg)))
	end


--
-- Output an individual project XML element, with an optional configuration
-- condition.
--
-- @param depth
--    How much to indent the element.
-- @param name
--    The element name.
-- @param condition
--    An optional configuration condition, formatted with vc2010.condition().
-- @param value
--    The element value, which may contain printf formatting tokens.
-- @param ...
--    Optional additional arguments to satisfy any tokens in the value.
--

	function m.element(name, condition, value, ...)
		if select('#',...) == 0 then
			value = premake.esc(value)
		end

		local format
		if condition then
			format = string.format('<%s %s>%s</%s>', name, condition, value, name)
		else
			format = string.format('<%s>%s</%s>', name, value, name)
		end

		p.x(format, ...)
	end