1 files changed, 55 insertions, 0 deletions
diff --git a/src/cmd/vendor/rsc.io/markdown/quote.go b/src/cmd/vendor/rsc.io/markdown/quote.go
new file mode 100644
index 0000000000..43c30c0bdf
--- /dev/null
+++ b/src/cmd/vendor/rsc.io/markdown/quote.go
@@ -0,0 +1,55 @@
+// Copyright 2021 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package markdown
+
+import (
+	"bytes"
+)
+
+type Quote struct {
+	Position
+	Blocks []Block
+}
+
+func (b *Quote) PrintHTML(buf *bytes.Buffer) {
+	buf.WriteString("<blockquote>\n")
+	for _, c := range b.Blocks {
+		c.PrintHTML(buf)
+	}
+	buf.WriteString("</blockquote>\n")
+}
+
+func (b *Quote) printMarkdown(buf *bytes.Buffer, s mdState) {
+	s.prefix += "> "
+	printMarkdownBlocks(b.Blocks, buf, s)
+}
+
+func trimQuote(s line) (line, bool) {
+	t := s
+	t.trimSpace(0, 3, false)
+	if !t.trim('>') {
+		return s, false
+	}
+	t.trimSpace(0, 1, true)
+	return t, true
+}
+
+type quoteBuilder struct{}
+
+func newQuote(p *parseState, s line) (line, bool) {
+	if line, ok := trimQuote(s); ok {
+		p.addBlock(new(quoteBuilder))
+		return line, true
+	}
+	return s, false
+}
+
+func (b *quoteBuilder) extend(p *parseState, s line) (line, bool) {
+	return trimQuote(s)
+}
+
+func (b *quoteBuilder) build(p buildState) Block {
+	return &Quote{p.pos(), p.blocks()}
+}