[PATCH] Throw an error when bibliography field is not properly parsed (was: [PATCH] oc-basic.el: Fix wrong type for the editors field when parsing JSON.)

[Ihor Radchenko <yantar92@posteo.net>]

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Ihor Radchenko <yantar92@posteo.net> writes:

>> As explained in the ChangeLog entry, this points to a more general issue where
>> `org-cite-basic--get-field' is expected to return nil or a string, but calls
>> `org-cite-basic--get-entry' that may return an association list. I am not sure
>> how to fix that since it means converting anything that
>> `org-cite-basic--get-entry' may return into a string.
>
> Non-string can only be for JSON bibliographies for fields that are not
> supported. `org-cite-basic--get-field' can probably return nil in such
> scenarios.

I am attaching tentative patch that will make
`org-cite-basic--get-field' throw an error when the filed value is not a
string.

I would appreciate testing.

Best,
Ihor


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From 9fe6284fdc7ceeb0e0aa8e5a58b6828ca415b6b2 Mon Sep 17 00:00:00 2001
Message-Id: <9fe6284fdc7ceeb0e0aa8e5a58b6828ca415b6b2.1672323564.git.yantar92@posteo.net>
From: Ihor Radchenko <yantar92@posteo.net>
Date: Thu, 29 Dec 2022 17:18:35 +0300
Subject: [PATCH] org-cite-basic--get-field: Throw an error on non-nil field
 values

* lisp/oc-basic.el (org-cite-basic--get-field): Throw an error when
the field value is not a string.  Document the new behavior.

Link: https://orgmode.org/list/87edsnsocj.fsf@localhost
---
 lisp/oc-basic.el | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lisp/oc-basic.el b/lisp/oc-basic.el
index 01e314bfd..8e69db03c 100644
--- a/lisp/oc-basic.el
+++ b/lisp/oc-basic.el
@@ -332,7 +332,9 @@ (defun org-cite-basic--get-field (field entry-or-key &optional info raw)
 
 Return value may be nil or a string.  If current export back-end is derived
 from `latex', return a raw string instead, unless optional argument RAW is
-non-nil."
+non-nil.
+
+Throw an error if the field value is non-string and non-nil."
   (let ((value
          (cdr
           (assq field
@@ -343,6 +345,8 @@ (defun org-cite-basic--get-field (field entry-or-key &optional info raw)
                    entry-or-key)
                   (_
                    (error "Wrong value for ENTRY-OR-KEY: %S" entry-or-key)))))))
+    (unless (and value (stringp value))
+      (error "Non-string bibliography field value: %S" value))
     (if (and value
              (not raw)
              (org-export-derived-backend-p (plist-get info :back-end) 'latex))
-- 
2.38.1


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-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
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