gemtext -> atom converter

* add GemsubToAtom converter function
* add Server.Handler method and implementations

fixes #1

1 files changed, 60 insertions, 0 deletions

diff --git a/gemini/gemtext/sub_test.go b/gemini/gemtext/sub_test.go
new file mode 100644
index 0000000..8bba682
--- /dev/null
+++ b/gemini/gemtext/sub_test.go
@@ -0,0 +1,60 @@
+package gemtext
+
+import (
+	"bytes"
+	"net/url"
+	"testing"
+)
+
+func TestGemsubToAtom(t *testing.T) {
+	tests := []struct {
+		url    string
+		input  string
+		output string
+	}{
+		{
+			url: "gemini://sombodys.site/a/page",
+			input: `
+# This is a gemlog page
+
+
+## with a subtitle after empty lines
+
+=> ./first-post.gmi 2023-08-25 - This is my first post
+`[1:],
+			output: `
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom">
+  <id>gemini://sombodys.site/a/page</id>
+  <link href="gemini://sombodys.site/a/page"/>
+  <title>This is a gemlog page</title>
+  <subtitle>with a subtitle after empty lines</subtitle>
+  <updated>2023-08-25T12:00:00Z</updated>
+  <entry>
+    <id>./first-post.gmi</id>
+    <link rel="alternate" href="./first-post.gmi"/>
+    <title>This is my first post</title>
+    <updated>2023-08-25T12:00:00Z</updated>
+  </entry>
+</feed>
+`[1:],
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.url, func(t *testing.T) {
+			doc, err := Parse(bytes.NewBufferString(test.input))
+			if err != nil {
+				t.Fatal(err)
+			}
+			loc, err := url.Parse(test.url)
+			if err != nil {
+				t.Fatal(err)
+			}
+			xml := GemsubToAtom(doc, *loc)
+			if xml != test.output {
+				t.Fatal("mismatched output")
+			}
+		})
+	}
+}