1 files changed, 21 insertions, 0 deletions

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+(declare (module (jimmy wrap)))
+
+(import scheme (chicken base)
+        (jimmy emit)
+        (jimmy util)
+        (only (chicken io) read-string)
+        (only (chicken port) with-output-to-string)
+        (only (chicken string) string-translate* string-intersperse))
+
+;; templates are strings with variables interpolated with "{{variables}}"
+
+(define-public (wrap document template)
+  (let* ((meta (map (lambda (el)
+                      (cons (string-append "{{" (car el) "}}")
+                            (string-intersperse (cdr el) " ")))
+                    (alist-walk document 'meta)))
+         (body (cons "{{body}}" (emit-string document))))
+    (string-translate* template (cons body meta))))
+
+(define-public (wrap-with document file)
+  (wrap document (with-input-from-file file read-string)))