From 524b0140b514f9619b5956766b82dd1377c2968a Mon Sep 17 00:00:00 2001
From: Peter Stuifzand <peter@stuifzand.eu>
Date: Thu, 11 Jun 2020 22:20:17 +0200
Subject: [PATCH] Add export format: "markdown"

---
 main.go | 61 +++++++++++++++++++++++++++++++++++----------------------
 1 file changed, 38 insertions(+), 23 deletions(-)

diff --git a/main.go b/main.go
index f48b157..bc4ad21 100644
--- a/main.go
+++ b/main.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"html"
 	"html/template"
+	"io"
 	"log"
 	"net/http"
 	"net/url"
@@ -441,6 +442,15 @@ func (h *indexHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		}
 	}()
 
+	format := r.URL.Query().Get("format")
+	if format == "" {
+		format = "html"
+	}
+
+	if !(format == "html" || format == "markdown") {
+		http.Error(w, "unknown format", http.StatusBadRequest)
+	}
+
 	page := r.URL.Path[1:]
 	if page == "" {
 		page = "Home"
@@ -501,32 +511,37 @@ func (h *indexHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		pageText = builder.String()
 	}
 
-	pageText = renderLinks(pageText)
+	if format == "html" {
+		pageText = renderLinks(pageText)
+		pageText = renderMarkdown2(pageText)
 
-	pageText = renderMarkdown2(pageText)
+		pageBase := getPageBase()
+		data := indexPage{
+			pageBaseInfo: pageBase,
+			Session:      sess,
+			Title:        cleanTitle(page),
+			Content:      template.HTML(pageText),
+			Name:         page,
+			Backrefs:     mpPage.Refs,
+		}
 
-	pageBase := getPageBase()
-	data := indexPage{
-		pageBaseInfo: pageBase,
-		Session:      sess,
-		Title:        cleanTitle(page),
-		Content:      template.HTML(pageText),
-		Name:         page,
-		Backrefs:     mpPage.Refs,
+		t, err := template.ParseFiles("templates/layout.html", "templates/view.html")
+		if err != nil {
+			http.Error(w, err.Error(), 500)
+			return
+		}
+		err = t.Execute(w, data)
+		if err != nil {
+			log.Println(err)
+			// http.Error(w, err.Error(), 500)
+			return
+		}
+	} else if format == "markdown" {
+		_, err = io.WriteString(w, "# ")
+		_, err = io.WriteString(w, cleanTitle(page))
+		_, err = io.WriteString(w, "\n\n")
+		_, err = io.WriteString(w, pageText)
 	}
-
-	t, err := template.ParseFiles("templates/layout.html", "templates/view.html")
-	if err != nil {
-		http.Error(w, err.Error(), 500)
-		return
-	}
-	err = t.Execute(w, data)
-	if err != nil {
-		log.Println(err)
-		// http.Error(w, err.Error(), 500)
-		return
-	}
-
 }
 
 func renderLinks(pageText string) string {