1 files changed, 57 insertions, 0 deletions
diff --git a/vendor/github.com/mattn/go-colorable/noncolorable.go b/vendor/github.com/mattn/go-colorable/noncolorable.go
new file mode 100644
index 0000000..05d6f74
--- /dev/null
+++ b/vendor/github.com/mattn/go-colorable/noncolorable.go
@@ -0,0 +1,57 @@
+package colorable
+
+import (
+	"bytes"
+	"io"
+)
+
+// NonColorable holds writer but removes escape sequence.
+type NonColorable struct {
+	out io.Writer
+}
+
+// NewNonColorable returns new instance of Writer which removes escape sequence from Writer.
+func NewNonColorable(w io.Writer) io.Writer {
+	return &NonColorable{out: w}
+}
+
+// Write writes data on console
+func (w *NonColorable) Write(data []byte) (n int, err error) {
+	er := bytes.NewReader(data)
+	var plaintext bytes.Buffer
+loop:
+	for {
+		c1, err := er.ReadByte()
+		if err != nil {
+			plaintext.WriteTo(w.out)
+			break loop
+		}
+		if c1 != 0x1b {
+			plaintext.WriteByte(c1)
+			continue
+		}
+		_, err = plaintext.WriteTo(w.out)
+		if err != nil {
+			break loop
+		}
+		c2, err := er.ReadByte()
+		if err != nil {
+			break loop
+		}
+		if c2 != 0x5b {
+			continue
+		}
+
+		for {
+			c, err := er.ReadByte()
+			if err != nil {
+				break loop
+			}
+			if ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '@' {
+				break
+			}
+		}
+	}
+
+	return len(data), nil
+}