feat: add Go backend

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

@@ -0,0 +1,36 @@
+package gohtml
+
+import (
+	"bytes"
+	"strconv"
+	"strings"
+)
+
+// Format parses the input HTML string, formats it and returns the result.
+func Format(s string) string {
+	return parse(strings.NewReader(s)).html()
+}
+
+// FormatBytes parses input HTML as bytes, formats it and returns the result.
+func FormatBytes(b []byte) []byte {
+	return parse(bytes.NewReader(b)).bytes()
+}
+
+// Format parses the input HTML string, formats it and returns the result with line no.
+func FormatWithLineNo(s string) string {
+	return AddLineNo(Format(s))
+}
+
+func AddLineNo(s string) string {
+	lines := strings.Split(s, "\n")
+	maxLineNoStrLen := len(strconv.Itoa(len(lines)))
+	bf := &bytes.Buffer{}
+	for i, line := range lines {
+		lineNoStr := strconv.Itoa(i + 1)
+		if i > 0 {
+			bf.WriteString("\n")
+		}
+		bf.WriteString(strings.Repeat(" ", maxLineNoStrLen-len(lineNoStr)) + lineNoStr + "  " + line)
+	}
+	return bf.String()
+}