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server/internal/library/hggen/views/gohtml/writer.go

@@ -0,0 +1,33 @@
+package gohtml
+
+import (
+	"bytes"
+	"io"
+)
+
+// A Writer represents a formatted HTML source codes writer.
+type Writer struct {
+	writer      io.Writer
+	lastElement string
+	bf          *bytes.Buffer
+}
+
+// SetLastElement set the lastElement to the Writer.
+func (wr *Writer) SetLastElement(lastElement string) *Writer {
+	wr.lastElement = lastElement
+	return wr
+}
+
+// Write writes the parameter.
+func (wr *Writer) Write(p []byte) (n int, err error) {
+	n, _ = wr.bf.Write(p) // (*bytes.Buffer).Write never produces an error
+	if bytes.HasSuffix(p, []byte(wr.lastElement)) {
+		_, err = wr.writer.Write([]byte(Format(wr.bf.String()) + "\n"))
+	}
+	return n, err
+}
+
+// NewWriter generates a Writer and returns it.
+func NewWriter(wr io.Writer) *Writer {
+	return &Writer{writer: wr, lastElement: defaultLastElement, bf: &bytes.Buffer{}}
+}