Add macro tag

examples/macro/include.go

@@ -0,0 +1,93 @@
+/*
+ * Salix - Go templating engine
+ * Copyright (C) 2023 Elara Musayelyan
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package main
+
+import (
+	"embed"
+	"io/fs"
+	"log"
+	"net/http"
+	"time"
+
+	"go.elara.ws/salix"
+)
+
+//go:embed tmpls
+var tmpls embed.FS
+
+func main() {
+	tmplsFS, err := fs.Sub(tmpls, "tmpls")
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	ns := salix.New().WithVarMap(map[string]any{"now": time.Now})
+
+	err = ns.ParseFSGlob(tmplsFS, "*.html")
+	if err != nil {
+		log.Fatalln(err)
+	}
+
+	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		tmpl, ok := ns.GetTemplate("home.html")
+		if !ok {
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+
+		name := r.URL.Query().Get("name")
+		vars := map[string]any{"title": "Home"}
+		if name != "" {
+			vars["name"] = name
+		}
+
+		err = tmpl.
+			WithVarMap(vars).
+			Execute(w)
+		if err != nil {
+			log.Println(err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+	})
+
+	http.HandleFunc("/about", func(w http.ResponseWriter, r *http.Request) {
+		tmpl, ok := ns.GetTemplate("about.html")
+		if !ok {
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+
+		err = tmpl.
+			WithVarMap(map[string]any{"title": "About"}).
+			Execute(w)
+		if err != nil {
+			log.Println(err)
+			w.WriteHeader(http.StatusInternalServerError)
+			return
+		}
+	})
+
+	log.Println("Starting HTTP server on port 8080")
+
+	err = http.ListenAndServe(":8080", nil)
+	if err != nil {
+		log.Fatalln(err)
+	}
+}