Annotate fields with a custom scheme such as "^^xsd:datetime"

* dump.scm (annotate-field): New function.
* dump/triples.scm (triple): Print a string as they appear with
DISPLAY should they contain "\"" thus enabling a triple that looks
like:

    gn:species_mus_musculus gn:name "Mouse"^^xsd:string

Signed-off-by: Munyoki Kilyungi <me@bonfacemunyoki.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/dump.scm b/dump.scm
index 9650de5..01376b2 100755
--- a/dump.scm
+++ b/dump.scm
@@ -89,6 +89,15 @@
 
 ;;; Dump tables
 
+(define (annotate-field field schema)
+  (let ([schema (cond ((symbol? schema)
+                       (symbol->string schema))
+                      ((string? schema) schema)
+                      (else
+                       (error "Use a string/symbol")))])
+    (string->symbol
+     (format #f "~s~a" field schema))))
+
 (define (delete-substrings str . substrings)
   "Delete SUBSTRINGS, a list of strings, from STR."
   (fold (lambda (substring result)