From 45bdd193c53e142b4c1d0046c8022bbe8e8c90e1 Mon Sep 17 00:00:00 2001
From: fiatjaf <fiatjaf@gmail.com>
Date: Fri, 29 Dec 2023 15:58:25 -0300
Subject: [PATCH] Tags.GetD()

---
 tags.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tags.go b/tags.go
index 71f5710..2b24ecd 100644
--- a/tags.go
+++ b/tags.go
@@ -61,6 +61,16 @@ func (tag Tag) Relay() string {
 
 type Tags []Tag
 
+// GetD gets the first "d" tag (for parameterized replaceable events) value or ""
+func (tags Tags) GetD() string {
+	for _, v := range tags {
+		if v.StartsWith([]string{"d", ""}) {
+			return v[1]
+		}
+	}
+	return ""
+}
+
 // GetFirst gets the first tag in tags that matches the prefix, see [Tag.StartsWith]
 func (tags Tags) GetFirst(tagPrefix []string) *Tag {
 	for _, v := range tags {