Initial commit

subpipe.go

@@ -0,0 +1,33 @@
+package scriptx
+
+import (
+	"bufio"
+	"github.com/bitfield/script"
+	"io"
+)
+
+func eachLine(r io.Reader, fn func(line string) error) error {
+	scanner := bufio.NewScanner(r)
+	for scanner.Scan() {
+		if err := fn(scanner.Text()); err != nil {
+			return err
+		}
+	}
+	return scanner.Err()
+}
+
+func SubPipe(fn func(src string) *script.Pipe) func(r io.Reader, w io.Writer) error {
+	return func(r io.Reader, w io.Writer) error {
+		scanner := bufio.NewScanner(r)
+		for scanner.Scan() {
+			bts, err := fn(scanner.Text()).Bytes()
+			if err != nil {
+				return err
+			}
+			if _, err := w.Write(bts); err != nil {
+				return err
+			}
+		}
+		return scanner.Err()
+	}
+}