{
	// Competitive-programming workflow: compile the focused .cpp, feed it
	// inputf.in on stdin, capture stdout to outputf.out, and print the result.
	//
	// Both files live NEXT TO THE SOURCE (working_dir is the file's folder),
	// not at the repo root. Use "Setup" below to create them.
	//
	// Sublime expands ${name} AND bare $name in shell_cmd. Every $ meant for
	// bash is escaped \$ -- see https://www.sublimetext.com/docs/build_systems.html
	"shell_cmd": "test -n \"${file}\" || { echo 'Click into a .cpp tab, then build.'; exit 1; }; clang++ \\$(cat compile_flags.txt 2>/dev/null) \"${file}\" -o \"${file_base_name}\" || exit 1; touch inputf.in; ./\"${file_base_name}\" < inputf.in > outputf.out; echo '--- inputf.in ---'; cat inputf.in; echo '--- outputf.out ---'; cat outputf.out",
	"file_regex": "^(..[^:]*):([0-9]+):?([0-9]+)?:? (.*)$",
	"working_dir": "${file_path:${folder}}",
	"selector": "source.c++",

	"variants":
	[
		{
			// Same as above, then check the answer against expectedf.out.
			"name": "Run + check against expectedf.out",
			"shell_cmd": "test -n \"${file}\" || { echo 'Click into a .cpp tab, then build.'; exit 1; }; clang++ \\$(cat compile_flags.txt 2>/dev/null) \"${file}\" -o \"${file_base_name}\" || exit 1; touch inputf.in; ./\"${file_base_name}\" < inputf.in > outputf.out; echo '--- outputf.out ---'; cat outputf.out; if [ -f expectedf.out ]; then echo '--- diff (expected vs actual) ---'; if diff -u expectedf.out outputf.out; then echo 'PASS'; else echo 'FAIL'; exit 1; fi; else echo '(no expectedf.out here - run Setup to make one)'; fi"
		},
		{
			// No redirect: type the input straight into the build panel.
			"name": "Run (type input live)",
			"shell_cmd": "test -n \"${file}\" || { echo 'Click into a .cpp tab, then build.'; exit 1; }; clang++ \\$(cat compile_flags.txt 2>/dev/null) \"${file}\" -o \"${file_base_name}\" || exit 1; ./\"${file_base_name}\"",
			"interactive": true
		},
		{
			"name": "Setup: create inputf.in / expectedf.out here",
			"shell_cmd": "touch inputf.in expectedf.out outputf.out; echo \"ready in \\$(pwd):\"; ls -l inputf.in expectedf.out outputf.out"
		},
		{
			"name": "DIAGNOSTIC - show Sublime variables",
			"shell_cmd": "echo \"file      = [${file}]\"; echo \"file_path = [${file_path}]\"; echo \"base_name = [${file_base_name}]\"; echo \"cwd       = \\$(pwd)\""
		}
	]
}