Remove (Text).HTML functionv0.1.1

1 files changed, 90 insertions, 0 deletions

diff --git a/examples/html.go b/examples/html.go
new file mode 100644
index 0000000..fe59c87
--- /dev/null
+++ b/examples/html.go
@@ -0,0 +1,90 @@
+// +build ignore
+
+// This example illustrates a gemtext to HTML converter.
+
+package main
+
+import (
+	"fmt"
+	"html"
+	"strings"
+
+	"git.sr.ht/~adnano/go-gemini"
+)
+
+func main() {
+	text := gemini.Text{
+		gemini.LineHeading1("Hello, world!"),
+		gemini.LineText("This is a gemini text document."),
+	}
+
+	html := textToHTML(text)
+	fmt.Print(html)
+}
+
+// textToHTML returns the Gemini text response as HTML.
+func textToHTML(text gemini.Text) string {
+	var b strings.Builder
+	var pre bool
+	var list bool
+	for _, l := range text {
+		if _, ok := l.(gemini.LineListItem); ok {
+			if !list {
+				list = true
+				fmt.Fprint(&b, "<ul>\n")
+			}
+		} else if list {
+			list = false
+			fmt.Fprint(&b, "</ul>\n")
+		}
+		switch l.(type) {
+		case gemini.LineLink:
+			link := l.(gemini.LineLink)
+			url := html.EscapeString(link.URL)
+			name := html.EscapeString(link.Name)
+			if name == "" {
+				name = url
+			}
+			fmt.Fprintf(&b, "<p><a href='%s'>%s</a></p>\n", url, name)
+		case gemini.LinePreformattingToggle:
+			pre = !pre
+			if pre {
+				fmt.Fprint(&b, "<pre>\n")
+			} else {
+				fmt.Fprint(&b, "</pre>\n")
+			}
+		case gemini.LinePreformattedText:
+			text := string(l.(gemini.LinePreformattedText))
+			fmt.Fprintf(&b, "%s\n", html.EscapeString(text))
+		case gemini.LineHeading1:
+			text := string(l.(gemini.LineHeading1))
+			fmt.Fprintf(&b, "<h1>%s</h1>\n", html.EscapeString(text))
+		case gemini.LineHeading2:
+			text := string(l.(gemini.LineHeading2))
+			fmt.Fprintf(&b, "<h2>%s</h2>\n", html.EscapeString(text))
+		case gemini.LineHeading3:
+			text := string(l.(gemini.LineHeading3))
+			fmt.Fprintf(&b, "<h3>%s</h3>\n", html.EscapeString(text))
+		case gemini.LineListItem:
+			text := string(l.(gemini.LineListItem))
+			fmt.Fprintf(&b, "<li>%s</li>\n", html.EscapeString(text))
+		case gemini.LineQuote:
+			text := string(l.(gemini.LineQuote))
+			fmt.Fprintf(&b, "<blockquote>%s</blockquote>\n", html.EscapeString(text))
+		case gemini.LineText:
+			text := string(l.(gemini.LineText))
+			if text == "" {
+				fmt.Fprint(&b, "<br>\n")
+			} else {
+				fmt.Fprintf(&b, "<p>%s</p>\n", html.EscapeString(text))
+			}
+		}
+	}
+	if pre {
+		fmt.Fprint(&b, "</pre>\n")
+	}
+	if list {
+		fmt.Fprint(&b, "</ul>\n")
+	}
+	return b.String()
+}