Added termlink builtin

neon/builtin/termlink.go

@@ -0,0 +1,33 @@
+package builtin
+
+import (
+	"github.com/c4s4/neon/neon/build"
+)
+
+func init() {
+	build.AddBuiltin(build.BuiltinDesc{
+		Name: "termlink",
+		Func: termlink,
+		Help: `Make given string a link when printed in a terminal.
+
+Arguments:
+
+- The URL to link to.
+- The text to print on terminal.
+
+Note: if text is empty, the URL is used as text.
+
+Examples:
+
+    # make link for string "Example" to "https://example.com"
+    termlink("https://example.com", "Example")
+    # returns: string "Example" with escape codes for terminal link to "https://example.com"`,
+	})
+}
+
+func termlink(url, text string) string {
+	if text == "" {
+		text = url
+	}
+	return "\033]8;;" + url + "\033\\" + text + "\033]8;;\033\\"
+}