From 591c09003bc0ccf4e8739ac3e39d60d36132a9be Mon Sep 17 00:00:00 2001
From: Munyoki Kilyungi
Date: Mon, 17 Jul 2023 21:23:29 +0300
Subject: Make prefix function have an optional ttl?

Signed-off-by: Munyoki Kilyungi <me@bonfacemunyoki.com>
---
 dump/triples.scm | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/dump/triples.scm b/dump/triples.scm
index 700437a..33b4ae3 100644
--- a/dump/triples.scm
+++ b/dump/triples.scm
@@ -35,8 +35,12 @@ characters with an underscore and prefixing with gn:PREFIX."
                                   (string-downcase
                                    (string-trim-right str #\.)))))))
 
-(define (prefix prefix iri)
-  (format #t "@prefix ~a ~a .~%" prefix iri))
+(define* (prefix prefix iri #:optional (ttl? #t))
+  (format #t
+	  (if ttl?
+	      "@prefix ~a ~a .~%"
+	      "PREFIX ~a ~a ~%")
+	  prefix iri))
 
 (define (ontology prefix value)
   (if (and (string? value) (string-null? value))
-- 
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