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

@@ -0,0 +1,54 @@
+package gohtml
+
+import (
+	"bytes"
+	"regexp"
+)
+
+// Column to wrap lines to (disabled by default)
+var LineWrapColumn = 0
+
+// Maxmimum characters a long word can extend past LineWrapColumn without wrapping
+var LineWrapMaxSpillover = 5
+
+// An htmlDocument represents an HTML document.
+type htmlDocument struct {
+	elements []element
+}
+
+// html generates an HTML source code and returns it.
+func (htmlDoc *htmlDocument) html() string {
+	str := string(htmlDoc.bytes())
+	str = replaceMultipleNewlinesWithSpaceAndTabs(str)
+	return str
+}
+
+func replaceMultipleNewlinesWithSpaceAndTabs(input string) string {
+	re := regexp.MustCompile(`\n\s*\n+`)
+	formattedString := re.ReplaceAllString(input, "\n")
+	return formattedString
+}
+
+// bytes reads from htmlDocument's internal array of elements and returns HTML source code
+func (htmlDoc *htmlDocument) bytes() []byte {
+	bf := &formattedBuffer{
+		buffer: &bytes.Buffer{},
+
+		lineWrapColumn:       LineWrapColumn,
+		lineWrapMaxSpillover: LineWrapMaxSpillover,
+
+		indentString: defaultIndentString,
+		indentLevel:  startIndent,
+	}
+
+	isPreviousNodeInline := true
+	for _, child := range htmlDoc.elements {
+		isPreviousNodeInline = child.write(bf, isPreviousNodeInline)
+	}
+	return bf.buffer.Bytes()
+}
+
+// append appends an element to the htmlDocument.
+func (htmlDoc *htmlDocument) append(e element) {
+	htmlDoc.elements = append(htmlDoc.elements, e)
+}