first commit

pkg/htools/StringBuilder.go

@@ -0,0 +1,23 @@
+package htools
+
+import (
+	"bytes"
+	"fmt"
+)
+
+type StringBuilder struct {
+	buf bytes.Buffer
+}
+
+func NewStringBuilder() *StringBuilder {
+	return &StringBuilder{buf: bytes.Buffer{}}
+}
+
+func (this *StringBuilder) Append(obj interface{}) *StringBuilder {
+	this.buf.WriteString(fmt.Sprintf("%v", obj))
+	return this
+}
+
+func (this *StringBuilder) ToString() string {
+	return this.buf.String()
+}