feat(markdown): quote

1 files changed, 80 insertions, 0 deletions

diff --git a/mardown/ast_quote.go b/mardown/ast_quote.go
new file mode 100644
index 0000000..9647500
--- /dev/null
+++ b/mardown/ast_quote.go
@@ -0,0 +1,80 @@
+package mardown
+
+import (
+	"fmt"
+	"html/template"
+	"strings"
+)
+
+type astQuote struct {
+	quote  []*astParagraph
+	source []*astParagraph
+}
+
+func (a *astQuote) Eval() (template.HTML, error) {
+	var quote template.HTML
+	for _, c := range a.quote {
+		ct, err := c.Eval()
+		if err != nil {
+			return "", err
+		}
+		quote += ct
+	}
+	quote = template.HTML(strings.TrimSpace(string(quote)))
+	quote = template.HTML(fmt.Sprintf("<blockquote>%s</blockquote>", quote))
+	var source template.HTML
+	for _, c := range a.source {
+		ct, err := c.Eval()
+		if err != nil {
+			return "", err
+		}
+		source += ct
+	}
+	source = template.HTML(strings.TrimSpace(string(source)))
+	return template.HTML(fmt.Sprintf(`<div class="quote">%s<p>%s</p></div>`, quote, source)), nil
+}
+
+func quote(lxs *lexers) (*astQuote, error) {
+	tree := new(astQuote)
+	n := 0
+	quoteContinue := true
+	source := false
+	for lxs.Next() && n < 2 {
+		switch lxs.Current().Type {
+		case lexerBreak:
+			n++
+			quoteContinue = false
+		case lexerQuote:
+			n = 0
+			if source {
+				// because the code did not use it
+				lxs.current--
+				return tree, nil
+			}
+			quoteContinue = true
+		case lexerLiteral, lexerModifier, lexerCode:
+			n = 0
+			if !quoteContinue {
+				source = true
+			}
+			p, err := paragraph(lxs, true)
+			lxs.current-- // because we call the next twice here
+			if err != nil {
+				return nil, err
+			}
+
+			if !source {
+				tree.quote = append(tree.quote, p)
+			} else {
+				tree.source = append(tree.source, p)
+			}
+			n++
+			quoteContinue = false
+		default:
+			// because the code did not use it
+			lxs.current--
+			return tree, nil
+		}
+	}
+	return tree, nil
+}