sort : port over full code, fix flag value iteration skipping in parseArgs

pipe/pipe.go

@@ -0,0 +1,29 @@
+package pipe
+
+import (
+	"errors"
+	"io"
+	"log"
+	"os"
+	"strings"
+)
+
+const Newline string = "\n"
+
+func isStdinLoaded() bool {
+	stat, _ := os.Stdin.Stat()
+	return (stat.Mode() & os.ModeCharDevice) == 0
+}
+
+func GetStdin() ([]string, error) {
+	if !isStdinLoaded() {
+		return nil, errors.New("stdin not loaded")
+	}
+	data, err := io.ReadAll(os.Stdin)
+	if err != nil {
+		log.Fatal(err)
+	}
+	// TODO: there's got to be a better way:
+	s, _ := strings.CutSuffix(string(data), Newline)
+	return strings.Split(s, Newline), nil
+}