add vendor

vendor/github.com/smartystreets/goconvey/convey/reporting/printer.go

@@ -0,0 +1,57 @@
+package reporting
+
+import (
+	"fmt"
+	"io"
+	"strings"
+)
+
+type Printer struct {
+	out    io.Writer
+	prefix string
+}
+
+func (self *Printer) Println(message string, values ...interface{}) {
+	formatted := self.format(message, values...) + newline
+	self.out.Write([]byte(formatted))
+}
+
+func (self *Printer) Print(message string, values ...interface{}) {
+	formatted := self.format(message, values...)
+	self.out.Write([]byte(formatted))
+}
+
+func (self *Printer) Insert(text string) {
+	self.out.Write([]byte(text))
+}
+
+func (self *Printer) format(message string, values ...interface{}) string {
+	var formatted string
+	if len(values) == 0 {
+		formatted = self.prefix + message
+	} else {
+		formatted = self.prefix + fmt.Sprintf(message, values...)
+	}
+	indented := strings.Replace(formatted, newline, newline+self.prefix, -1)
+	return strings.TrimRight(indented, space)
+}
+
+func (self *Printer) Indent() {
+	self.prefix += pad
+}
+
+func (self *Printer) Dedent() {
+	if len(self.prefix) >= padLength {
+		self.prefix = self.prefix[:len(self.prefix)-padLength]
+	}
+}
+
+func NewPrinter(out io.Writer) *Printer {
+	self := new(Printer)
+	self.out = out
+	return self
+}
+
+const space = " "
+const pad = space + space
+const padLength = len(pad)