M gmi2html.go → gmi2html.go

@@ -3,6 +3,9 @@
 import (
 	"fmt"
 	"html"
+	"mime"
+	neturl "net/url"
+	"path"
 	"strings"
 
 	"git.sr.ht/~adnano/go-gemini"
@@ -27,13 +30,28 @@ case gemini.LineLink:
 			link := l.(gemini.LineLink)
 			url := html.EscapeString(link.URL)
 			name := html.EscapeString(link.Name)
-			if name == "" {
-				name = url
+			var internal bool
+			parsedUrl, err := neturl.Parse(url) // simpler way to do this?
+			if err == nil {
+				// only show images inline if they are relative links
+				internal = parsedUrl.Host == ""
 			}
-			fmt.Fprintf(&b, "<p><a href='%s'>%s</a></p>\n", url, name)
+			if strings.HasPrefix(mime.TypeByExtension(path.Ext(url)), "image") && internal {
+				fmt.Fprintf(&b, "<img src='%s' alt='%s'>\n", url, name)
+			} else {
+				if name == "" {
+					name = url
+				}
+				fmt.Fprintf(&b, "<p><a href='%s'>%s</a></p>\n", url, name)
+			}
 		case gemini.LinePreformattingToggle:
 			pre = !pre
 			if pre {
+				altText := string(l.(gemini.LinePreformattingToggle))
+				if altText != "" {
+					altText = html.EscapeString(altText)
+					fmt.Fprintf(&b, "<pre title='%s'>\n", altText)
+				}
 				fmt.Fprint(&b, "<pre>\n")
 			} else {
 				fmt.Fprint(&b, "</pre>\n")